GB2439548A

GB2439548A - Door frame unit

Info

Publication number: GB2439548A
Application number: GB0612896A
Authority: GB
Inventors: John Muirhead Druce
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-29
Filing date: 2006-06-29
Publication date: 2008-01-02
Also published as: GB0612896D0

Abstract

A door frame unit 4S with a specific profile comprises two standards 3S and a lintel 2S connected within a doorway opening in order to encompass, support and check control a door, such that the door is connected to the unit with a pre-selected direction of opening. The door frame may also comprise a step/tread (27, Fig. 24). The specific profile of the unit may allow it to contain locks and/or latches, or receptacles for locks and/or latches (19A, Fig. 22). The specific profile of the unit may allow it to be connected to an existing doorway opening. The unit may be attached to a doorway opening by attachments (A1, Fig. 161) which have a profile corresponding to that of the unit, such that the unit can be adjusted relative to the doorway opening. The unit may include a letter-box (25, Fig. 24) and/or a return mechanism to close the door and/or an electrically operated lock (L7, Fig. 99).

Description

OR OL UNIT

This invention relates to a door control unit.

The entry/exit to and from buildings, houses and shops, rooms in buildings houses and shops is gained via doors fitted to frames. The door frame consists of a lintel, two standards, and on certain frames a step/tread, and requires to be assembled in a certain manner to encompass the selected door prior to being fixed in a designated opening in various types of walls and/or partitions such as brick and building block built in cavity form, partitions and/or walls of brick or block and tilTlber/plasterboard partitions in varied timber sizes. There are various methods of fixing the frame to the opening for example screwnails via frame into rawiplugs, or nails through frame into slivers of wood embedded in cement joints or into timber partitions.

The door requires hinges, handles locks/latches, and on front or outer doors a bell and/or knocker and a letterbox which are collectively referred to as door ironnxngry. The door is fixed to the frame by screwnailing the hinges thereupon to one of the standards thereby giving a pre-selected choice of opening/closing direction. When the door is fixed upon the frame a set of three checks are fitted, one to either standard and one to the lintel as an aid to directional functioning, lock/latch alignment, security, and the prevention of wind and weather ingress. A set of six facings are required and fitted internally and externally two on either standard and two on the lintel contributing to decor and an aid against wind and weather ingress.

The door frame, the facings and checks, and the door are usually made fran wood requiring environmental protection on a recurring basis. Fixing the ironnngry requires holes and slots to be cut and drilled into the door and standards, the facings and checks require to be measured, cut and shaped individually prior to nailing to the frame and is time consuming and wasteful.

When a door is fixed to a frame the directional function cannot be altered without effect to the irorinongry, the door, the facings and checks. Replacing a damaged or rotted door requires the ironmongry thereupon transferred to a replacement door and is time consuming and wasteful. Security is canpraidsed by pressurised splitting of wood on both door and frame and the repair of a breach is time consuming and wasteful.

According to the present invention there is provided a door control unit in various forms comprising a lintel, t standards and on certain units a base/tread plate. The lintel and standards are deixuntable and contain in profile the check and facings pertaining to the door with options available relative to various wall and partition doorway openings.

Attachment fitrnents germane to the unit and the doorway openings are provided and there are fixing options for the base/tread plate relative to the various floors with means provided to fix a step in various forms to the base/tread plate. Means are provided by way of pivot brackets to fix a selected door to the unit with open/close directional options.

Locks and latches are available in various forms relative to various requirements arid are contained within the unit as are the balicatch, the letterbox, the automatic lock, the foot control mechanism, the open/ return to close mechanism with electric notor option, the electrification mechanism and notor for selected locks, and all securing fitments/brackets.

Sited upon the unit are the lock/latch handles, key and/or revte control receptacle, letterbox flaps, foot control pedals and the lock stay/snib.

Sited upon the door are the pivot brackets and lock/latch receptacles with options provided to adapt the unit relative to a door containing the usual required ironnongry. (hinges excluded) Options of fabric are available to the unit and certain of the fitnients such as steel, stainless steel, alluminium, copper, brass, glassfibres and various plastics.

A specific embodiement of the invention will now be described by way of example with reference to the accompanying drawing in which: -Figure 1 shows in perspective a small unit pre-assemble and assembled.

Figure 2 shows in perspective a sectioned large unit pre-assemble.

Figure 3 is a plan of a large unit standard in place on a brick/block wall with plaster bead, offset lockholder and mortar bed fitment.

Figure 4 is a plan of a large unit standard in place on a brick/block wall with offset lockholder and mortar bed fitment over a large unit secure fitment on a mortar bed fitrnent aligned to suit.

Figure 5 is a plan of the small unit standard, plaster beads, lockholder, and a section of nortar bed fitment, on a brick/block wall.

Figure 6 is a plan of the medium unit standard, plaster beads, lockholder, over unit secure and mortar bed htments on a brick/block wall.

Figure 7 is a plan of the small unit standards, sections of the small cavity wall fitments, and door section, in place on a cavity wall, with examples ot the unit secure and lockholder ttments.

Figure 8 is a plan of the small unit standard, small cavity wall fitinent, lockholder, lock connecting fitment, on a cavity wall.

Figure 9 is a plan of the small unit standard, lockholder, and a section of nortar bed fitment in place on a brick/block partition.

Figure 10 is a plan of the medium unit standard, offset lockholder, ovet unit secure and mortar bect titinents on abricic/block partition.

Figure 11 is a plan of a small unit standard, lockholder, adaptor, and a section of nortar bed fitment on a brick/block partition.

Figure 12 is a plan of the small unit standard, a unit secure fitment on a stud timber/plasterboard partition.

Figure 13 is a plan of the medium unit standard, lockholder, in place on a stud timber/plasterboard partition.

Figure 14 is a plan of the large unit standards, a section of the large cavity wall fitments and sections of a door in place on a cavity wall, held therein iy unit secure fitments.

Figure 15 is a plan of the smell unit standard, a small cavity wall fitment, a lock connector, lockholder, and lock/latch bolt in place on a cavity wall.

Figure 16 is a plan of a small unit standard, a lockholder, and a section of nortar bed fitment in place on a block partition.

Figure 17 is a plan of the medium unit standard, offset lockholder and a section of mortar bed fitment, in place on a block partition.

Figure 18 is a plan of a section of the medium unit standard, a section of mortar bed fitment, a section of the offset lockholder, and plaster beads, in place on a block partition.

Figure 19 shows in perspective plaster beads and profiles thereof.

Figure 20 illustrates the relevance of tv unit standards to the width of a camn brick or block.

Figure 21 shows in perspective a small unit and spacers in place on a stud timber/plasterboard partition.

Figure 22 shows in perspective a small unit, spacers, pivot brackets,and latch handle, in place on a timber/plasterboard partition and illustrates a door ajar, with latch receptacle/handle fitment.

Figure 23 shows in perspective a small unit, letterbox flap, bell, key receptacle, and step/tread in place on a cavity wall, and a front door with three bolt receptacle/door handle fitment and door handle.

Figure 24 shows in perspective a large unit, letterbox flap, bell, remote receptacle, and step/tread in place on a cavity wall, and a front door with a section of handle.

Figure 25 shows in perspective a section of large unit, steel lintel cover, mortar bead, fixing brackets, in place on a cavity wall.

Figure 26 details the fixing of brackets and mortar bead to steel lintel cover.

Figure 27 shows a sectioned small cavity wall fitment fixed to a sectioned base/treadplate. with securing clips and set screws attached.

Figure 28 shows a sectioned large cavity wall fitment fixed to a sectioned base/treadplate.

Figure 29 shows aligmv.ent bracket for lintel/standards mitred joins.

Figure 30 shows sections of the lintel support fitments pre-assenthied.

Figure 31 shows in perspective a sectioned lintel support fitment and one of three support slides, within a small unit lintel.

Figure 32 shows in perspective the small cavity wall fitments, the base! treadplate, the lintel support with slides, the unit secure fitments, the three bolt lock, the to bolt autanatic lock, lock connecting fitments with fixing details, fixed to and adjacent to a cavity wall.

Figure 33 shows in perspective the large cavity wall fitments, the base! treadplate, fixed to and adjacent to a cavity wall.

Figure 34 shows a small unit lintel, draught excluding beading, a small support slide, a pivot pin and bush, sections of door, unit lintel and pivot bracket.

Figure 35 is a plan of large unit lintel, support slide, draught beading, pivot pin and bush, in place below t concrete li.ntels with a section of door, pivot bracket, draught beading, large lintel and a standard.

Figure 36 shows in perspective a section of large lintel support fitment, a support slide, a section of large cavity wall fitment with wall tie, and sections of three bolt lock,holder and extension.

Figure 37 shows in perspective door step relative to small unit.

Figure 38 shows in perspective door step relative to large unit with fixing brackets.

Figure 39 shows in perspective a sectioned, large, shaped, door step.

Figure 40 is a plan of the large shaped door step with fixing brackets, sections of large unit standard, base/treadplate and baseplate in place on a cavity wall.

Figure 41 shows in perspective a sectioned small shaped door step.

Figure 42 is a plan of the small shaped door step with fixing brackets, sections of small unit standard, base/treadplate and baseplate in place on a cavity wall.

Figure 43 is a plan of small straight door step and fixing brackets, sections of small unit standard, base/treadplate and baseplate in place on a cavity wall.

Figure 44 is a plan of the large straight door step and fixing brackets, sections of large unit standard, base/treadplate and baseplate in place on a cavity wall.

Figure 45 shows in perspective base/treadplate with nrtar keying options.

Figure 46 shows in perspective sectioned base/treadplate and baseplate with bearing holding fitment.

Figure 47 shows in perspective base/treadplate (nortar keying anitted), alternative baseplate, with bearing holding fitment.

Figure 48 shows in perspective small shaped door step in place on a cavity wall with sections of small unit standards.

Figure 49 shows in perspective large shaped door step in place on a cavity wall with sections of large unit standards.

Figure 50 shows in perspective the external letterbox flap (closed) on a section of large unit standard.

Figure 51 shows in perspective external and section of internal letterbox flaps (open) on a section of large unit standard, with a section of letterbox fitment. -7-.

n.gure 52 shows the letterbox flap for the large unit with hinges and handle.

Figure 53 is a plan of the letterbox fitxnent for the large unit, the flap external to internal open/close mechanism with flaps closed.

Figure 54 is a plan of the letterbox titment for the large unit, the flap external to internal open/close mechanism with flaps open.

Figure 55 shows the connecting titment and stop plate prior to fixing, and in place with flap mechanism attached.

Figure 56 shows in perspective the letterbox fitment for large unit.

Figure 5/ shows the letterbox internal flap in place, open and closed on a small unit standard.

Figure 5 shows the external to internal flap open/close mechanism for a small unit with flaps in open and closed positions.

Figure 59 shows the external flap on a small unit standard with plans of the mechanism in the open and closed positions.

Figure 60 shows in perspective the letterbox titment, and in place on a small unit standard.

Figure 61 shows in perspective the supporting, lockholthng, and securing fitinents relative to timber/plasterboard partitions.

Figure 62 shows in perspective lockholder titment relative to small unit on a cavity wall with hatched lines outlining the fitment relative to medium unit anci width variation.

Figure 63 shows in perspective lockholder fitment relative to small unit on a brick/block wall or partition with hatched lines outlining the titment relative to a medium unit.

Figure 64 shows in perspective the base section ot a unit secure titment relative to a small unit on a cavity wall.

Figure b5 shows in perspective the base section of a unit secure titinent relative to a small unit on a brick/block partition or wail with hatched lines outlining the fitment relative to a medium unit.

Figure 66 shows in perspective a lockholcler fitment relative to a large unit on a cavity wall.

Figure b7 shows in perspective the base section of a unit secure titment relative to a large unit on a cavity wall with hatched lines outlining the titment relative to a brick/block partition or wall.

Figure 68 shows in perspective a unit secure fitment, details the formation and illustrates the action to secure a selected standard.

Figure 69 shows in perspective an adaptor and mortar bed fitments with a set key and illustrates adaptor set.

Figure 70 shows in perspective a mortar bed fitment relative to three brick or one block cnent bed courses.

Figure 71 shows in perspective an alternative adaptor and mortar bed titments.

Figure 72 shows in perspective an adjustable mortar bed titment in place on a blockwork partition/wall.

Figure 73 shows in perspective adjustable mortar bed titment.

Figure 74 shows in perspective supporting, lockholding and securing fitinents in place on a timber/plasterboard partition prior to plasterboard.

Figure 75 shows in perspective non-cavity lintel support and slides, unit secure and lockholding fitments in place on a b1ocksrk partition or wall.

Figure 76 shows a nrtar bed fitment, and in perspective, in place on a block partition.

Figure 77 shows a non cavity lintel support sectioned, with support slide, and in perspective, in place with three slides and nortar bed fitments on a block partition.

Figure 78 shows pivot brackets and pins with ball bearing and bushes relative to front or exterior doors.

Figure 79 shows pivot brackets and pins with clips and bushes relative to interior or pass doors.

Figure 80 shows spacers and holding clip relative to large unit standards.

Figure 81 shows spacers and holding clip relative to small unit standards, and illustrates clip in place. and medium spacers.

Figure 82 shows bearing holding sump and in place on timber or concrete floor.

Figure 83 shows bearing holding fitment relative to base/treadplate.

Figure 84 shows a sectioned internal veiw and plan of a large unit standard and exterior door fixed at base, with securing fitment, spacers, bushes, pivot bracket, bearing holding fitment, spacer clip, sectioned cavity wall fitment and base/treadplate in place on a cavity wall.

Figure 85 shows a sectioned internal veiw and plan of a small unit standard and exterior door fixed at base, with securing fitxnent, spacers, bushes, pivot bracket, bearing holding fitment, spacer clip, sectioned cavity wall fitment and base/treadplate in place on a cavity wall.

Figure 86 shows sectioned veiws from internal, and opposite standard and plan of small unit standard and pass door fixed at base, with pivot bracket, pin, clip and bushes, spacers, and draught bead, on a timber floor, with ajar spring clip in place upon door.

Figure 87 shows a sectioned veiw of large unit lintel and exterior door fixed at top, with support slide, pivot bracket and pin with bush, sectioned lintel support and cavity wall fitments in place on a cavity wall.

Figure 88 shows sectioned veiw fran internal of unit standard and lintel, with exterior door fixed at top with pivot bracket, and pin with bush, sectioned lintel support and cavity wall fitments and slide in place and detailed.

Figure 89 shows sectioned veiw and plan of small unit lintel and exterior door fixed at top with pivot bracket and pin with bush, slide, lintel support and cavity wall fitments, in place on a cavity wall.

Figure 90 shows sectioned veiw of small unit lintel, and fran internal both lintel and standard, with interior door fixed at top, with pivot bracket, pin and clip, support fitinent and sectioned support fitrnent and slide in place on a timber/plaster board partition and details of pivot pin, clip and bush.

Figure 91 shows in perspective sectioned veiw from internal and plan of lintel support fitment and slides connected to cavity wall fitments.

Figure 92 shows in perspective lintel support fitment and slide fixed to cavity wall fitment and details tubular stay relative to support fitment.

Figure 93 shows sectioned veiw of small unit lintel, and fran internal both lintel and standard, with non-cavity lintel support and slide in place on a brick partition and in perspective the lintel support and slide fixed to mortar bed fitment. -I'--

Figure 94 shows sectioned veiw ot medium unit lintel and fran internal both lintel and standard, lintel support and slide, and nortar bed fitment in place on a brick/blockwork partition.

t?igure 95 shows sectioned veiw of small unit lintel, lintel support and slide, and nortar bed fitrnent in place under a concrete lintel.

Figure 96 shows sectioriect veiw of medium unit lintel, lintel support arid slide, nortar bed titment and in perspective in place on a brick/blockwork partition.

Figure 97 shows sectioned veiw ot large unit lintel, lintel support and slide with tubuiar support holes, and rrcrtar bed fitment in place under concrete lintels.

Figure 98 shows in perspective the two bolt automatic lock between two connectors within a casement, and a door receptacle titment.

Figure 99 shows in perspective the three bolt lock between connectors within a casement, and the combined handle/receptacle titment.

Figure 100 shows in perspective the lock/latch and catthined receptacle.

Figure 101 shows in perspective the three bolt lock between connectors within a sectioned small unit and the combined receptacle on a sectioned door and illustrates external lever/bolt load.

Figure 102 illustrates external lever/bolt connection, the bolt to load principle relative to three bolt lock.

Figure 103 shows in perspective the automatic lock between connectors within a sectioned small standard, a receptacle on sectioned door and illustrates the activator, bolt to load principle.

Figure 104 illustrates the lever/bolt connection, the lever/boit load principle via the activator ot the automatic lock.

Figure 105 shows a sectioned layout and plans of the automatic lock.

Figure 106 is a plan and veiw fran internal of the three bolt lock (handle control) activating mechanism relative to external levers prior to placing lock bolts in the load position.

Figure 107 is a plan and veiw fran internal of the three bolt lock (handle control) activating mechanism relative to external levers with the lock bolts in load, and in place on a small unit standard.

Figure 108 is a plan and veiw from internal of the three bolt lock (key control) activating mechanism relative to external levers prior to placing lock bolts in the load position with a sectioned veiw f ran the back of the small unit standard detailing layout.

Figure 109 is a plan and veiw f ran internal of the three bolt lock (key control) activating mechanism relative to external levers with the lock bolts in load.

Figure 110 is a plan and veiw from internal of the three bolt lock (key and/or handle control) quick release mechanism in load hold position with a sectioned veiw fran rear detailing layout.

Figure 111 is a plan and veiw fran internal of the three bolt lock(key and/or handle control) quick relaese mechanism activating bolts release f ran load.

Figure 112 is a plan and veiw f ran internal of the three bolt lock (key control only) quick release mechanism in load hold position with a sectioned veiw f ran rear detailing layout.

Figure 113 is a plan and veiw fran internal of the three bolt lock (key control only) quick release mechanism activating bolts release f ran load.

Figure 114 is a plan and veiw f ran internal of the three bolt handle relative to bolts in load and quick release mechanism and latch bolt control with the key receptacle relative to storage and quick release control with load on/off positions shown.

Figure 115 shows plans with internal and front veiws of a sectioned lock! latch detailing the lock stay or snib in the stay and release positions, with push button control shown.

Figure 116 shows various return springs in selected locations with spring anchor points, spools and clamps shown, and illustrates consequential actions.

Figure 117 shows in perspective the two anci three bolt locks connector, the small to large unit extension fitment, with relative key barrel extension holding fitment and the locks casanent.

Figure 118 shows a front veiw and plan of lock barrel extension holding fitment and in place on a selected lock.

Figure 119 shows plans and veiws fran internal of a lock attached to small unit standard and illustrates release fran load key and handle actions, with a veiw fran rear detailing layout.

Figure 120 shows plans and veiws fran internal of lock in place on a small unit standard, illustrates release fran load handle action and details certain mechanism parts, bushes, and handle.

Figure 121 shows in perspective the small to large unit lock extension fitment and three bolt lock with electrical fitment and riotor, unit secure fitment and sectioned cavity wall fitment in place on a cavity wall, ( external lock levers not shown).

Figure 122 shows plans, veiws fran front and rear of small to medium unit lock extension bush connected to selected lock.

Figure 123 shows plans and veiws f ran internal and sectioned details of lock in place on a small unit standard, and illustrates key control release fran load action.

Figure 124 shows plans and veiws fran internal of latch, illustrates external release f ran load action, with a veiw fran the rear detailing layout and in place on a small unit standard.

Figure 125 shows plans and veiws fran internal of a lock and illustrates key control release fran load action with a veiw fran rear detailing layout and in place on a small unit standard.

Figure 126 shows plans and veiws fran internal of latch with handles, the latch/handle/small unit standard fixing thereof arid illustrates the external handle release from load action, with a veiw fran rear detailing layout.

Figure 127 shows plans and veiws from internal of latch with handle and handle fixings, selected handle fixing thereof and illustrates the internal handle release from load action, with a veiw fran rear detailing layout, in place on a small unit standard.

Figure 128 shows various return springs in selected locations with anchor points, spools and clamps and illustrates consequential actions.

Figure 129 shows plans, front and rear veiws of handle replacement lock with key, illustrates key locate/normal usage node and details layout.

Figure 130 illustrates handle replacement lock assemble sequence and the fixing thereof, and details the lock/unlock key/handle actions.

Figure 131 is a plan of an example of the lock stay/snib relative to a handle and illustrates off/on action.

Figure 132 is a plan of an example of the lock stay/snib relative to a handle and illustrates off/on action.

Figure 133 is a plan of an example of the lock stay/snib relative to a handle and illustrates off/on action.

Figure 134 is a plan of an example of the lock stay/snib relative to a handle and illustrates off/on action.

Figure 135 shows plans, veiws fran rear and external of push control latch and handle with shaft selection.

Figure 136 illustrates push control latch internal release fran load action in place on a small unit standard.

Figure 137 illustrates push control latch internal release f ran load action in place on a small unit standard.

Figure 138 shows a veiw fran rear of push control latch detailing layout.

Figure 139 details push attachments, lever layout and fran internal in place on a push latch.

Figure 140 shows plans, front and rear veiws of push latch handle replacent lock and illustrates lock/unlock key receptacle positions relative to handle load/release f ran load action.

Figure 141 shows in perspective a frontal veiw of the push latch foot control mechanism and illustrates release f ran load action.

Figure 142 shows push latch/foot control securing clips.

Figure 143 shows in perspective push latch connected to foot control mechanism in place on timber/plasterboard partition.

Figure 144 shows the fulcrum rod holding fitment and foot pedal receptacle relative to foot control mechanism.

Figure 145 shows front, internal and external veiws of foot pedal receptacle with pedals and a unit secure fitxnent in place inside a small unit standard.

Figure 146 shows a front veiw of a push lock with handles attached to a section of foot control mechanism on a small unit standard.

Figure 147 shows in perspective a push latch fixed to relative fitment and connected to sectioned foot control mechanism with fulcrum rod fitment in place on an adaptor example and a veiw of fitments only and adaptor attached to section of block partition.

Figure 148 shows in perspective a push latch fixed to relative fitment and connected to sectioned foot control mechanism with fulcrum rod and lever guide fitrnents on an adaptor example and a veiw of fitments only and adaptor attached to section of block partition.

Figure 149 shows a plan and veiws detailing ball catch and attachment thereof to relative fitment.

Figure 150 shows a veiw fran the front of the electrification mechanism and the mechanism fitment attached to a three bolt lock.

Figure 151 shows a veiw fran internal of the electrification mechanism in the neutral position.

Figure 152 shows a veiw fran internal of the electrification mechanism and illustrates the lock to load action.

Figure 153 shows a veiw fran internal of the electrification mechanism and illustrates the lock f ran load action.

Figure 154 is a plan of the electrification mechanism fitmerit and electric motor example in place on a three bolt lock attached to a small unit standard.

Figure 155 is a plan of the door open/return to close mechanism with door closed and a veiw of the mechanism prior to fixing and an electric motor option. Figure 156 is a plan of the door open/return to close mechanism

illustrating the door to open action with electric motor option and details of door connecting bush.

Figure 157 shows frontal, internal and external veiws and sections of the door open/return to close mechanism with sections of door in open/close positions arid return spring placement.

Figure 158 shows door open/return to close mechanism holding fitment.

Figure 159 shows lock electrification mechanism holding fitment.

Figure 160 shows door to ajar spring Figure 161 shows in perspective standard replacement fitment. (small) Figure 162 shows in perspective frame replacement fitments (small) with lintel support fitment and slides.

Figure 163 shows in perspective standard replacement fitment. (large) Figure 164 shows in perspective frame replacement fitments (large) with lintel support fitment and slides.

Figure 165 shows a lock/latch receptacle fitment (small), securing slide and receptacle, with adjustment slide in place.

Figure 166 shows lock/latch receptacle fitment (medium), securing slide, adjustment slide and fixing attachment detached.

Figure 167 shows lock/latch receptacle fitment (large) arid securing slide.

Figure 168 shows small, medium and large receptacle securing fitments.

Figure 169 is a plan of small unit standard, lock/latch receptacle, securing fitment and slide in place on a cavity wall with sections of door and lock/latch thereof.

Figure 170 is a plan of large unit standard, lock/latch receptacle, securing fitment and slide in place on a cavity wall with sections of door and lock/latch thereof.

Figure 171 is a plan of a small unit standard, lock/latch receptacle with adjustment slide in place on a timber/plasterboard partition and a veiw of the latch receptacle in the standard.

Figure 172 is a plan of a medium unit standard, lock/latch receptacle, securing fitment with slide on a rrortar bed fitruent in place on a blockwork partition and a veiw of the lock and latch receptacles in the standard.

Figure 173 shows a return to close mechanism holder and adaptor for attachment to rrrtar bed fitment.

Figure 174 shows a return to close mechanism holder and adaptor for attachment to a large cavity wall fitment with plan of the holder in place.

Figure 175 is a plan of a nortar bed fitment specific to a large unit lock receptacle and holder, (diagonal lines on subject-matter in drawings depict plastic and/or nylon) Referring to the drawing the unit is an assemblage of hollow, specifically shaped sections pre-set to a selected length and available in three end veiw/profile sizes designated small, medium, and large (referred to throughout by a number followed by relative initial for example 4S/4M/4L refers to the assembled unit) canprising a lintel 2S/2M/2L, a left standard 1S/1M/lL, a right standard 3S/3M/3L and in certain situations a single base/tread plate 35 canmon to the three profiles is required. A small unit 4S with lintel 2S and standards iS and 3S with flanged end 11, pivot rod 45 hole 2 and selected lock or latch hole 1 are shown in Fig 1. A lintel 2L and standards 1L and 3L with flanged end 11, pivot rod 45 hole 2 and selected lock or latch hole 1 are shown in Fig 2.

Care is required in selection of a unit suitable to the function needed, the ironmongry to be fitted, and the doorway openings available and optional examples with relative fitments are shown in Fig 3., Fig 4., Fig 5., Fig 6., Fig 7.., Fig 8., Fig 9., Fig 10., Fig 11., Fig 12., Fig 13., Fig 14., Fig 15., Fig 16., Fig 17., and Fig 18. The assemblage of a selected unit must occur in sequence thus:-lintel held in place first, followed by either of the two matching standards, then the remaining standard but is required only upon fixing to a designated doorway opening and with sane exception (herein described) is always preceded by fixing of the relative fitments and ironmongry thereof and thereto. (not shown) The selected unit may also replace exsisting door frames, facings and checks on exsisting openings with means provided in the form of adaptors shown in Fig 161., Fig 162., Fig 163., and Fig 164. Means are also provided in the form of receptacle fitments shown in Fig 165., Fig 166., Fig 167., Fig 168., Fig 169., Fig 170., Fig 171., and Fig 172 to fix a selected door fitted with ironnongry (hinges excluded) to a selected unit 4S/4M/4L.

The unit 4S/4M/4L described herein is suitable for regular manufactured doors of a certain height and width with two variations in thickness.

Options are available to provide longer/shorter lintel arid standards whilst maintaining the profile sizes (not shown) that are suitable for regular manufactured doors with longer/shorter height and width dimension or if a pair of doors are required on a unit. The assemblage proceedure remains consistent.

In order to fix a small unit 4S to a 75mm. stud timber 15/plasterboard 16 partition a procedure in sequence is required thus:- two support fitments 84 are attached to both ends of the lintel fitment 83 by way of the slots 82 then placed on the timber lintel 119 and secured thereto by for example nailing the support fitments 84 to the stud timbers 15 as shown in Fig 74., and Fig 90. A selected lock/latch fitment 13 or a ball latch fitment Bi is fixed by nailing to one of the two stud timbers in the doorway opening (door opening/closing direction determines which stud) at the height relative to the lock/latch hole 1 in a unit standard followed by fixing two unit secure fitments 86 to the base of the two stud timbers 15 on either side of the doorway opening as shown in Fig 74. (plasterboard 16 can now be fixed upon the stud timbers 15 as per normal practice) Shown in Fig 90 is one of three plastic supports 118 which are placed in the lintel 2S on each end and one central prior to the lintel 2S being placed on the doorway opening over the fitment 83 at the timber lintel 119 ( flanged angled ends 11 facing downward as shown in Fig 1) and pushed evenly upwards until the supports 118 are in contact with the fitment 83 as shown in Fig 90., and may be hand held in position until supported when the standards iS and 3S are fixed in place. The standards iS and 3S can now be fixed to the opening by placing the angled flanged end 11 on one of the standards for example 1S facing upwards and against an angled. flanged end 11 of the lintel 2s as shown in Fig 1 then pushing the standard lS inward towards the stud timber and simultaneously upwards towards the lintel 2S until vertical against the unit secure fitment 86 and lapping onto the timberl5/plasterboard 16 partition as shown in Fig 12. The action repeats for standard 3S and both standards are secured in place by the unit secure fitments 86 with the assembled unit 4S shown in place in Fig 21., ana Fig 22.

Unit secure fitments 86 are varied in shape and size relative to the three unit sizes 4S/4M/4L and various fitments available such as cavity wall fitznents 11S and llL, mortar bed fitment 4 and the optional size stud timber 15, as shown in Fig 61., Fig 64., Fig 65. and Fig 67 but in canmon canprise a gravity flap 90 in various sizes, with an attached holding rod 91 of various lengths held on the fitment 86 by the swivel rod 117 set in the slot 89, and shown in Fig 68. When a unit standard is being fixed the holding rods are brought to rest against the rear return edges of the selected standard and when the standard is pushed to the vertical position the holding rod 91 on the gravity flap 90 tails to the horizontal position and is held in place thereupon by a self tap screw 54 into the hole 87 in the flap 90, with access to the screw 54 gained via the hole 2A in the selected standard as shown in Fig 1. The securing action is applied to standards IS, 3S, iN, 3M, IL and 3L, as illustrated in Fig 68., and is consistent to the fixing of units 4S, 4M, and 4L upon the various doorway openings herein described. Fitment b in the secure position is selectively shown in Fig 4., Fig 6., Fig I., Fig 10., Fig 12., Fig 14., Fig 84. and Fig 85.

In order to fix a medium unit 4M to a lOOnin. timber 15/plasterboard 16 partition the procedure in sequence applied to the small unit 4S and the fixing description thereof are consistent and although the fitments are varied in size the shape thereot and the reference numbers applied thereto are unchanged. Standard 3M is shown for example in various doorway opening situations secured therein by relative fitment 86 with selected lockholders (described later) in Fig 6. and Fig 10.

in order to fix a small unit 45 to a lOOm. brick/block 6 partition a procedure in sequence is required thus: -during the building ot the partition and specificly when the doorway opening is being formed, mortar bed fitments 4 require to be set in the cement horizontal joints between brick/block courses ret erred to throughout as mortar beds) as to! lows one fitinent 4 facing upward on each side of the doorway opening set in the mortar bed under the tormation brick/block 6, one titment 4 central on one side of the doorway opening facing upward/downward whichever is closest to central (door opening/closing direction determines side selected) and two fitments 4 facing downward on either side of the doorway opening in the mortar beds under the concrete lintel 99, as shown in Fig 75. and Fig 76.

A selected lock/latch fitment 8 as example is fixed by slipping the fitment onto the centrally located mortar bed titment 4 followed by two unit secure fitments 86 being fixed in a similar fashion to the mortar bed fitments 4 at the base of the doorway opening. The lintel support fitments IOU with the three plastic supports 101 thereupon are fixed to both fitments 4 located on either side of the doorway opening below the lintel 99 by sliding titments upward until supports 101 are against the lintel 99 as shown in Fig 75. and Fig 93., and without the lintel 99 in Fig 77., and may be held secure in this position by for example tapping notches in the titment 4 slide channels with a brick hairuer at points directly below the support fitment 100 (not shown). Two pairs of alignment brackets 17 are placed in each end of the lintel 2S with the alignment buttons 17A projecting through the holes 1A as shown in Fig 29. The lintel 2S is placed in position by guiding over the three plastic supports 101 then pushing upward until contact is made with the concrete lintel 99 ( flanged angled ends ii facing downward as in Fig 1.) then hand held in position until standards iS and 3S are in place. ( A suitable lock or latch is required to be fitted at this stage, however with a selection of locks and latches available with fixing details, descriptions thereof follows later). The standards iS and 3S are fixed by placing the angled flanged end 11 of standard iS facing upward against the angled flanged end 11 of the lintel 2S with the alignment buttons 17A adjacent to the holes lA in the standard iS and when the standard is pushed upward and inward into the vertical position the alignment buttons 17A project through the holes 1A in the standard iS as shown in Fig 29., with the procedure repeated for standard 3S. then both standards are secured in place by the unit secure fitments 86.

In order that the mitred join formed by the flanged angled ends 11 of a lintel and matching standards is held firmly and securely in place it is required to fix spacers 17S/17M/17L in position at the base of the selected standards hA and shown in Fig 21. Spacers are available with thickness variations and are shaped to match the profile of the units 4S/4M/4L and have a removable section and a choice of securing clips relative to the various spacers sizes and shown in Fig 80 and Fig 81. A spacer or spacers are fixed by levering the selected unit standard upward with for example a screwdriver on a small fulcrum until the angled ends ii are tightly closed (not shown) then measuring the gap between the floor and the base of the standard hA s a result of ths action and placing a suitable spacer or spacers between the floor and the standard then tapping into flush position with for example a hainner or mallet. (not shown) There are spacer securing clips liOS/11OL available and are fixed to the slide channel of for example a mortar bed fitment 4 or cavity wall fitments liS/11L and the selected spacer/spacers are secured in place by the relative clip into the channel 110 as shown in Fig 81 and in place ii Fig 84 and Fig 85. When spacers are used where the selected unit 4S/4r4/4L is lapped over the wall or partition the central part of the selected spacer is discarded as shown in Fig 13., and the securing clip is not required as shown in Fig 86. When a spacer/spacers are fixed to one selected unit standard the central part of the spacer/spacers selected for the other unit standard must be removed, inverted, then replaced prior to fixing. (not shown) In order to fix a medium unit 4M to a plaster coated 7 partition formed in lOOnni. brick/block the procedure in sequence applied to fixing the small unit 4S is consistent although the plaster coating 7 must occur prior to fixing, the unit secure fitznents 86 must be relative, (not shown) three lintel support fitments 121 are required with an example shown in Fig 94., and the central part of the spacers 17M is removed and in certain situations an offset lockholder 8is required as in Fig l0., with options available on lock selection and fixing thereof. (refer to locks

description).

Adaptors and optional mortar bed fitments are available giving wider choice of locks, lockholders and height adjustment thereof with examples shown in Fig 69., Fig 70., Fig 71., Fig 72. and Fig 73. In order to fix adaptor l4A the mortar bed adaptor fitments 92 are fixed in place in the mortar beds during the formation of the doorway opening facing optional upward/downward as shown in Fig 69., suitably close to central between floor and concrete lintel 99 as mortar bed formation permits. (not shown) The adaptor 14A is slid into the channels of the mortar bed fitments 92 and when suitably located is secured by placing the key 94 into the receptacle 93 and turning slightly clockwise/anti-clockwise forming an offset in the adaptor as illustrated in Fig 69. An adjustable mortar bed fitment 98 is available as shown in Fig 73., and is fixed by setting fitment 97 in a mortar bed during the formation of a doorway opening and fitment 96 in a mortar bed upward and on the same side of the opening as illustrated in Fig 72., with adjustment available by placing fitment 98 over fitment 96, pushing fitment 98 upward engaging the clips on fitment 96 until one of the slots or the lower end is adjacent to the upturn on fitinent 97 pushing fitment 98 inward and downward until secure behind the upturn as shown in a set position in Fig 72. Adaptor 14 can be fixed to fitments 96 and 97 as an optional alternative to fitment 98 as illustrated in Fig 71. Mortar bed fitment 95 is specifically suited to mortar beds directly under and over a single building block (or three ccximon brick courses) and gives options in height adjustment for certain locks and lockholders and is shown detailing optional mortar keying patterns and illustrated in place on a single building block in a bbockrk partition in Fig 70.

In order to fix small unit 4S or medium unit 4M to a 150 mm. block partition the procedure in sequence applied to fixing units 4S and 4M to a 100 rn.

partition is consistent and although relative mortar bed fitments are preferred as in Fig 16., Fig 17., Fig 18. and Fig 96., mortar bed fitments for 100 mm. ork correctly sited can suffice. (not shown) In order to fix units 4S/4iM/4L to brick/block walls 200 mm. thick (walls of a greater thickness are not shown but are applicable in this description) a procedure in sequence consistent with that applied to fixing a small unit 4S or a medium unit 4M to a brick/block partition is required, however options are available when positioning a selected unit within the wall thickness relative to unit selected or if the wall is or is not plaster coated 7, as shown in Fig 3., Fig 4., Fig 5., and Fig 6. Units 4S or 4M may be set in various positions across the thickness of a selected doorway opening in the selected wall (not shown) but as the large unit 4L laps onto one side of the selected wall the positional variations are confined to the depth of the plaster coating 7 illustrated between Fig 3. and Fig 4. The large unit 4L requires three relative plastic lintel supports 123 and an example of one is shown in place attached to a mortar bed fitment 4 within a lintel 2L below to concrete lintels 99 in Fig 97.

Plaster coating 7 and cement rendering (not shown) are similar procedures requiring different materials arid in certain situations such as for example on corners in doorway openings a meshed beading is used to give good vertical and horizontal straight edges and to prevent chipping or breakage.

t'hen units 4S/4M/4L are fixed in certain situations plaster coating or cement rendering will be required therefore a beading 5 in various profiles relative to the unit selected and the positional siting thereof is available and shown in Fig 19. Fixed beading 5 enables selected unit to be set in place or removed without effect to the plaster coating or cement rendering.

(not shown) Fixing plaster/cement bead 5 requires cutting to canpatable length and holding in place (not shown) during the selected unit fixing as previously described and when the unit 4S/4M/4L is secure in position thus holding the beads 5 in place on the selected doorway opening to be plaster coated 7 or cement rendered (not shown) and are secured when the plaster or cement sets/hardens as per normal practice with various examples of the beads in place shown in Fig 3., Fig 5., Fig 6., Fig 8. and Fig 18.

Brick and building blocks are of a certain length and width which enables uniformity of jointing alignment to be maintained during the building thereof.

Sections of t unit standards (random selection) placed back to back over a cmon brick 6 and cement joins 9 darnonstrate relativity as illustrated in Fig 20.

In order to fix a small unit 4S to a cavity wall a proceedure in sequence is required thus:-the tread plate 35 in Fig 45 is placed in cement 9 on both courses of a cavity wall to bridge the cavity, directly below and central to the formation brick/block courses required when forming a proposed doorway opening. Prior to cciiinencement of building the doorway opening t cavity wall fitments uS are fixed on each end of the tread plate 35 and held firm by the securing clips 36 over the bridge of the tread plate as illustrated in Fig 27. A lintel support fitment 39 with three plastic supports 40S in place is fixed to the top of both cavity wall fitments llS by sliding the saddled ends 41 downward via the return channels on both sides of each cavity fitment uS until the ends 41 rest upon the tubular stay 37 as illustrated in Fig 32, and detailed in Fig 30., Fig 31. and Fig 92., and when the fitments are set horizontal arid vertical the brick and blockwork required to form a doorway opening can then be completed to encompass the fitrnents. One side of a completed doorway opening is shown in Fig 32. A ball-bearing holder 57 with holding sump 112 and ball-bearing 103 and adaptor bush 105 contained therein and thereupon complete with cover 113 as shown in Fig 83., is fixed to the tread plate 35 by inserting the upturned ends of the holder 57 into the holes 56 on the tread plate 35 setting the suinp 112 and cover 113 with contents therein directly adjacent below the selected pivot rod hole 58 in the tread plate cover 53 or 59 selected, (tread plate covers are available suitable to timber floors cover 53 and concrete or compound floors cover 59 and have pivot rod holes 58 drilled therein giving options to unit selection and the choice of door opening direction for example inward left or inward right and must be fixed in place prior to the fixing of the selected unit) as shown in Fig 46., and Fig 47. The small unit 4S can now be fixed in place in the sequence previously described with the unit secure fitments 86 pre-fixed to the cavity wall fitment ilS as illustrated in Fig 32., as are the selected locks/latch and the fixing thereof. (refer to locks description) If the selected doorway opening is for an entrance or front door, certain ironmongry such as for example letter box, a bell and/or knocker, key and/or riote control receptacle, electrical open/close mechanism arid relative motor, locks electrification mechanism and relative motor will all require fixing in place prior to the unit 4S being fixed. Units 4S designated for front or entrance doorway openings will require slots external 2lA and internal 63A relative to the letter box to be cut or machine stamped fran one of the standards pre-fixing.(as a unit manufacturing procedure for example) The letter box fitments 61 and 76 described in Fig 51., Fig 52., Fig.53., Fig 54., Fig 55., Fig 56., Fig 57., Fig 58.., Fig 59. and Fig 60. relate to left hand unit standards 3S and 3L for description purposes only and are inversely adaptable for right hand unit standards iS and 1L (not shown) if required.

In order to fix a letterbox fitment 76 to selected standard 3S the internal receptacle 81 is seperated from the fitment 76 and the internal flap 63 is placed in the recess in the receptacle 81 with the hinges 62 in the hinge recess 75 and the hinge pin 64 is inserted through the alloted holes in the receptacle 81 and hinges 62 securing the flap 63 in place as shown in Fig 57. The fitment 76 with the remaining receptacle 81A is placed in the standard 3S with the recessed face of the receptacle against and directly aligned to the slot 21A in the standard 3S and hand held in position whilst the receptacle 81 complete with flap 63 is placed in the standard for example below the fitment 76 and when the standard 3S is spread apart slightly by hand pressure (not shown)the receptacle 81 is slid upward until adjacent to the internal slot in the standard 63A and the fitment 76 when the hand pressure holding the standard apart is released reconnecting the fitrnent 76 with the receptacle 81 as shown in Fig 57 and Fig 60. The external flap 21 can now be fixed by placing the flap 21 in the recess in the receptacle 81A with the hinges 62 in the recesses 75 and the hinge pin 64 can be inserted through the alloted holes in the receptacle and hinges securing the flap 21 in place. The assembled fitment can be secured in position by self-tap screws 54 into the receptacles 81 and 81A through the return ends of the standard 3S as shown in Fig 57. A flap connecting mechanism is available which allows the internal flap 63 to be opened and closed by the opening/closing action of the external flap 21 as shown in Fig 58., with the flap 21 in the closed position at a suitable height as shown in Fig 23. The flap connecting mechanism shown in Fig 58., and Fig 59., is connected to the letter box fitment 76 by securing combined bridging plate and holding bracket 77 to the upper end of the receptacles 81 and 81A by for example self tap screws 54 through the plate 77 on to receptacles as shown in Fig 58.

Attached to the bracket is a cable cover 67 which is set in a recess on the receptacle 81A as shown in Fig 58 and Fig 59. The activating hinge 62A is now fixed by placing the t small offset lugs through the slots 74A on the top of fitment 76 then pushing the hinge 62A upward guiding the twin rods through the slots 74 on the top of fit.'nent 76 until the hinge pin holes are aligned and adjacent the alloted holes in the fitment 76 whereby the hinge pin 69 is inserted through all the holes securing the hinge 62A in place as shown in Fig 58., arid Fig 59. A small cable attached by a pin to the flap 21 at the receptacle 78 is fed through the cable 67 with a spring 66 set in place prior to fixing the cable 67 by for example crimping with pliers onto the hook 68A attached to the lever 68 as in Fig 58. and Fig 59. The external flap 21 opened by hand pressure in the direction of the arrow 80 activates the mechanism thereby opening the internal flap 63 as illustrated in Fig 58., and Fig 59., and upon release of the hand pressure the flap 21 is returned to the closed position by the return spring 66 whilst the flap 63 is returned to close by gravity force.

In order to fix a large unit 4L to a cavity wall a procedure in sequence is required thus:-the tread plate 35 in Fig 45 is laid on beds of cement 9 on either side of a cavity wall on the brick/block courses directly below the ccrnencement courses and central to the formation of a proposed doorway opening and in place to bridge the cavity, to cavity wall fitments ilL are fixed on each end of the tread plate 35 and held in place by the securing clip 36 over the cavity bridge of the tread plate as illustrated in Fig 28. A lintel support fitment 391 with three plastic supports 40L in place is fixed to the cavity wall fitments ilL by sliding the saddled ends 41 downward into the cavity wall fitment via the channel on either side until the saddle 41 rests upon the tubular stay 37 as illustrated in Fig 91. with a sectioned veiw in Fig 36., and when the fitments are set vertical and horizontal brick and b1ockork forming the doorway opening can be completed. Wall ties 49 are available for fitment liL and fixed by placing vertical through slots 20 in the fitment ilL turning 90 degrees engaging the notches in the wall tie 49 in the slot 20 of the fitnent ilL as shown in Fig 36 then laying flat on a mortar bed in a brick/block course during the formation of the doorway opening. Wall ties 49 can be placed in randrm brick/block mortar bed courses relative to the slots but must not encroach lock/latcn positions, with an example of four ties shcrn in place. through the slots 20 in the fitment ilL attached to tread plate 35 on one side of a partially formed doorway opening in Fig 33. The ball bearing holder 57 can now be fixed to the tread plate 35 as previously described with the holder 57 aligned to the hole 58 in the selected tread plate cover 53 or 59 applicable to a large unit 4L as shown in Fig 46., Fig 47. and Fig 83. The large unit 4L is fixed in place using the procedure in sequence previously described with the unit secure fitinents 86 pre-fixed to the cavity wall fitruents ilL as shown with spacers 17L in place in Fig 84., and in a front door situation in Fig 24., wherein certain ironmongry will require prior fixing on the unit 4L.

In order to fix letter box fitrnent 61 as shown in Fig 56., to a selected unit standard, 3L as example, (internal slot 63A and external orifice 25A relative to the letter box flaps 63 and 25 respectively, pre-cut or machine stamped frcn the selected standard as previously described) the internal flap 63 is fixed to the fitment 61 exactly as previously described for fixing to fitment 76 arid upon fixing the fitment 61 is placed in the unit standard 3L adjacent the relative slot 63A and the orifice 25A as shown in Fig 50. and Fig 51., with the fitment 70 placed in the standard 3L below fitment 61 and slid upward until the ledge 70A takes up the weight of the fitment 61 when both fitments can be secured to the standard 3L by for example self tap screws 54 through the return on the standard into the fitments as shown in Fig 53. and Fig 54. The external flap 25 is now fixed by placing the hinges 62 in the receptacles 75 and inserting the hinge pin 64 through the alloted holes in the fitment 61 and the hinges 62 securing the flap 25 in place as shown in Fig 52 and in closed and open positions in Fig 50. and Fig 51., respectively. A flap connecting mecnanism is available which allows the internal flap 63 to be opened and closed by the opening/closing action of the external flap 25 as shown in Fig 53., Fig 54.

and Fig 55., with the flap in the closed position at a suitable neight shown in Fig 24., and is connected to the fitments 61 and 70 by the bracket 71 being fixed in place with for example self tap screws 54through the holes 87 into the top of the fitments as shown in Fig 55., with a holding bracket 72 pre-fixed. The cable cover 67 is attached to the bracket 72 via the hole 73 and the recess in fitment 61 as shown in Fig 53., Fig 54. and Fig 55. The activating hinge 62A is varied slightly frctn example shown in Fig 58., as shown in Fig 55., however fixing and function are as previously described, as are the cable 65 and the spring 66 and the fixing thereof, and the opening action of the external flap 25 activates the connecting mechanism consequently opening the internal flap 63 as shown in Fig 53. and Fig 54. Small handles 60 suitable for finger action to open the flaps herein described are available and shown in Fig 50., Fig 51., Fig 52., Fig 53., Fig 54., Fig 57. and Fig 59.

In order to fix a medium unit 4M to a doorway opening in a cavity wall (not shown) a procedure in sequence is required consistent with the procedure applied when a unit 4S is fixed in the same situation. The slots 21A and 63A relative to the letter box are cut or machine stamped fran a selected standard lM or 3M as previously described applied to standard 3S. Fitment 76 requires a greater length between receptacles 81 and 81A (relative to width difference between standards 3S and 3M as shown in Fig 16. and Fig 17.) but can be fixed in place as previously described applied to standard 3S as are flaps 21 and 63. The activating hinge 62A requires the slots relative to the offset lugs to be cut in the extended fitment 76 prior to fixing and the canbined bridging plate and bracket 77, the cable 55 and the cable cover 67 require to be extended relative to the extended fitment 76 (not shown) with fixing thereof consistent with previous description applied to standard 3S.

A selection of door steps are available and there are various examples shown in Fig 37., Fig 38., Fig 39. and Fig 41. In order to fix a small straight doorstep 55 to a doorway opening in a cavity wall with a small unit 4S in place, a set of three clips 51 are placed in the slots S1A in the tread plate cover (53 or 59 dependent upon type of floor) as shown in Fig 46. and Fig 47.

The step 55 is placed with recess 52 side downward and over the clips 51 and self tap screws 54 are fixed into the pre-drilled holes in the step fran the back of the step 55 through the recess 52 and the clip 51 pulling the step 55 over the clip 51 upon tightening as shown in Fig 43. and Fig 37.

In order to fix a large straight doorstep 43 to a doorway opening in a cavity wall with a large unit 4L in place, two sets of three fixing clips 51 (certain steps require two types of fixing clips 51 as shown in Fig 38) are placed in the relative slots 5lA in the selected tread plate cover 53 or 59 and the step 43 is placed recess 52 facing downward over the clips 51 and self tap screws 54 are set into the step 43 via the pre-drilled holes connecting through the rear clips 51 and as the screws 54 are tightened the step 43 is pulled inward and over the front placed clip 51 therein secured in place as shown in Fig 44.

and Fig 38.

Fixing a medium straight doorstep (not shown) to a doorway opening in a cavity wall with a medium unit 4M in place requires a repeat of the action taken to fix step 43, with the clips 51 in relative slots 5lA in the selected cover 53 or 59 and the recess 52 in suitable positions. (not Shown) In order to fix a small shaped doorstep 47 to a doorway opening in a cavity wall with a small unit 4S in place a repeat of the action taken to fix step 43 is reqiured, with the clips 51 in relative slots 51A in the selected cover 53 or 59 and the recess 52 in relative positions as shown in Fig 42. and in place in Fig 23. and Fig 48.

In order to fix a large shaped doorstep 27 to a doorway opening in a cavity wall with a large unit 4L in place a repeat of the action taken to fix step 43 is required, with the clips 51 in relative slots 51A in the selected cover 53 or 59 and the recess 52 in relative positions as shown in Fig 40 and in place in Fig 24. and Fig 49.

Fixing a medium shaped doorstep (not shown) to a doorway opening in a cavity wall with a medium unit 4M in place requires a repeat of the action taken to fix step 43, with the clips 51 in relative slots 5LA in the selected cover 53 or 59 and the recess 52 in relative positions. (not shown) In order to fix a selected doorstep described herein to a doorway opening with unit 4S or 4M or 4L in place (not shown) in situations not reqiuring tread plate covers, the clips 52A shown in Fig 37., are available. The clips 52A are fixed to the floor in positions relative to the recess 52 in the step selected by for example screwnails into wood or into rawlplugs if a ccxnpound or concrete floor (not shown) and between the selected standards in the tread space in the doorway opening and the selected step is placed with the recess 52 facing downward over the clips 52A and secured in place as previously described. (not shown) When a selected unit 4S/4M/4L is fixed to a doorway opening formed with decorative or facing brick a part of the steel building lintel 29 specific to facing brick remains visible. A cover 28 to obscure the visible part of the lintel 29 is available and is shown in place in Fig 25., with a procedure in sequence required for fixing therein. The mortar bead 31 with drip channel 33 is placed on the lintel 29 as shown in section in Fig 25., ( the bead 31 is matched in length to unit lintel and is relatively placed) prior to the lintel 29 being placed over the doorway opening whereby normal building continues until the opening is completed. The four clips 30 are placed over the selected unit lintel and spaced therein relative to tne holes in the upturned edge of the cover 28 as shown in Fig 26., prior to the unit lintel being set in place and secured as previously described. The four rubber pop on clips 32 are fixed through the holes in the clips 30 and the slotted anti-rattle bead 34 is set behind the drip channel 33 in mortar bead 31 as shown in Fig 25. and Fig 26.

The cover 28 can now be fixed in place by sliding the straight edge into the slot in the bead 34 then by pushing upward and inward until the holes in the upturned edge of the cover pop onto clips 32 as shown in Fig 25. and Fig 26.

Standard manufactured doorbell push or pull control fitinents 22 and knocker (not shown) are fixed to a selected unit by for example self tap screws or set screws and nuts (not shown) and there are examples of fitments 22 in place on unit standards 4S and 4L shown in Fig 23. and Fig 24., and if the selected doorbell is electrically controlled a suitable hole requires to be drilled in the unit chosen relative to electric cable connection thereof to fitment 22. (not shown) The doors 10 described herein are standard manufactured doors of equal length and width but have a thickness variation comparably illustrated (and referred to as exterior door) in Fig 85. and (as interior door) Fig 86., with pivot brackets 44 relative to exterior door 10 shown in Fig 78., and pivot brackets 18 relative to interior door 10 shown in Fig 79. In order to fix an exterior door 10 to a selected unit 4S/4N/4L in the doorway openings herein described the selected exterior door 10 requires to be drilled relative to the pivot brackets 44 insert pins 44A in the top and bottom corners on the same edge of the door 10 to a depth equal to the length of the insert pins 44A and upon completion of the drilling the pivot brackets 44 are driven via the insert pins 44A into the holes by for example hammer blows on the brackets 44 until the pins 44A are fully inserted into the top and bottom corners of the same edge of the selected exterior door.(notshown)1 bracket 44 is shown in place in a top right edge/corner in Fig 88., and a bracket 44 is shown in place in the bottom right edge/corner in Fig 85. (pivot brackets 18 and 44 are fixed in inverse pairs to a selected door 10 and the opening/closing direction determines the edge/corners the brackets are therein fixed) Prior to the door 10, with a pair of pivot brackets 44 in place, being presented for fixing to a selected unit securely fixed in a doorway opening a nylon bush 48 requires to be placed via a pre-drilled hole of relative diameter (not shown) in the selected unit lintel into the receptacle 48A in the relative lintel support fitment 40S/40M/40L as shown in Fig 34., Fig 35., Fig 87., Fig 88. and Fig 89.

relative and adjacent to the pivot rod 45 on the bracket 44 on the top edge/ corner of the selected door 10. If a tread plate cover 53 or 59 is required in a doorway opening a ball bearing 103 and bush 105 will be fixed in place as previously described and shown in Fig 85., directly below the the nylon bush 48 on the selected lintel. The bearing sump 114 is available for timber 116, and/or compound or concrete 115 floors wtiere a cover 53 or 59 is not required and can be set in place on a timber floor 116 directly below the bush 48 by drilling a hole in the floor 116 relative in diameter to the sump 114 or in a pre-formed receptacle in a compound/concrete floor 115 where the surnp 114 can be inserted by for example gentle haxmer blows (not shown) into the timber 116 or concrete 115 floors as shown in Fig 82. The ball bearing 103 is placed in the sump 114 on top of the cushioning bush 104 followed by the dust cover 111 containing the adaptor bush 105 as shown in Fig 78 and in place as shown in Fig 82. The selected door 10 is placed with the top and bottom placed pivot brackets adjacent to the nylon bush 48 at the top and the the adaptor bush 105 at the bottom. A pivot rod 45 is placed into the bracket 44 fixed at the bottom of the door 10 and with the door tilted slightly the rod 45 is pushed through the bracket to allow a washer 102, a spacer or spacers 107 (as or if required) and a keying bush 106 to be slid onto the rod 45 then the door is set level along the base and upward vertical when the rod 45 is slid via the adaptor bush 105 into the ball bearing 103 and cushion bush 104 to rest on the sump 114 or 112 with the keying bush set in the relative slot in the adaptor bush 105 as shown in Fig 84. and Fig 85. A pivot rod 45 is placed into the bracket 44 on the top of the door 10 and when aligned to is pushed upward into the nylon bush 48 to rest against the base of the receptacle 48A as shown in Fig 34., Fig 35., Fig 87., Fig 88. and Fig 89. (spacer bushes 107 are available to set the door 10 relative to the spacers 17S/l7M/17L required in the selected unit standards) In order to fix interior door 10 to a selected unit 4S/4M/4L in a doorway opening, pivot brackets 18 are required and available in inverse pairs as shown in Fig 79., and fixed upon the door 10 by presenting to the selected top and bottan edges/corners of the door prior to tapping (with hand held hamner, not shown) until lugs 109 are fully embedded in the door rendering brackets 18 secure to the door 10 as shown in Fig 86., and Fig 90.

A nylon bush 48 relative to pivot rod 45 suitable to the bracket 18 on the top edge/corner of the selected door 10 is placed via pre-drilled relevant diameter hole in lintel 2S/2M/2L into receptacle 48A in support fitment 40S/40M/40L (not shown) or support fitment 118 if applicable, as shown in Fig 90. (the variation in thickness between exterior and interior doors is relevant to the placement of nylon bush 48 and receptacle 48A with options available to have the relative support fitrnents and selected unit lintel pre-drilled suitable to either situation with adaptor 108 available as shown in Fig 78., or pre-drilled selectively applicable to door option, or suitably drilled in situation). When an interior door is applied, nylon bush 48 is available relative to rod 45 in bracket 18 on the bottan edge/ corner of the door and is fixed by drilling a hole of relative diameter in the applicable floor then setting therein as shown for example in a timber floor 116 in Fig 86.

The selected door is placed with top/bottcxn brackets 18 directly adjacent the nylon bush 48 in the selected unit lintel and bush 48 in the floor. Pivot rod 45 is placed into bottan bracket 18 and the door 10 is held at tilt to allow washer 102 and required spacers 107 slipped onto rod 45 (not shown) whereupon the door 10 is set level, with bracket 18 and rod 45 therein aligned with then slid into bush 48 in the floor to rest therein as shown in Fig 86. The door 10 is now held vertical/horizontal, and the top bracket 18 and rod 45 set adjacent to bush 48 in the selected lintel whereupon the rod 45 is slid upward within the bracket 18 into the bush 48 as shown for example in Fig 90.

Transferring or fixing brackets 18 and 44 fran/to the opposite edge/corners of a selected door 10 previously described gives opening/closing direction change fran left to right or vice versa. Rotating a selected unit 180 degrees horizontally fran or prior to fixing gives directional change fran inward to outward. (a unit containing a letterbox fitment requires pre-selection).

The doors 10 and the fixing thereof to a selected unit as herein described can be pushed/pulled by hand pressure to open/closed positions on the fulcrum of the top and bottc-n placed pivot rods 45 in the selected brackets 18 or 44 to part rotate a minimum 90 degrees in one direction for example to open, and in the opposite direction to close. (not shown) A return to close mechanism is available which returns a selected door to the closed position when opened by hand ressure and tien the mechanism is driven by an electric motor with a suitably prograimed power source, will open, (upon lock/latch release) hold open, then return to the closed position a selected door. (not shown) The mechanism and an electric motor example as shown in Fig 155., Fig 156. and Fig 157., require holding fitments germane to the wall/partition doorway opening ct-iosen and the unit selected and examples of the holding fitments and adaptors thereof are shown in Fig 158., Fig 173. and Fig 174., and upon selection of a suitable holding fitment the mechanism with electric motor option may be connected thereupon.

Holding fitment 020 is suitable to a small unit 4S and is fixed to a cavity wall fitrnent liS by sliding the return channels on fitnent D20 into return channels on fitrnent uS as shown in Fig 155. and Fig 156. Holding fitment 023 (identical to fitment 020 with the exception of the return channels which are resited as shown in hatched lines in Fig 158.) is suitable for fixing by the return channels to a mortar bed fitment 4 which may be set in place to suit units 4S/4r4/4L. (not show-n) Holding fitment 024 and adaptor 026 are suitable for a large unit 4L and are fixed to cavity wall fitznent ilL by sliding the return channels on fitznent 024 onto the adaptors 026 prior to sliding the slotted ends of both adaptors into the return channels of fitment ilL as shown in Fig 174. Fitrnent D24 may also be fixed to mortar bed fitment 4 by sliding the return channels of fitment 024 onto adaptor 027 (not shown) then slidiny the adaptor 027 into the return channels of the fit.ment 4 as shown in Fig 173. Fitrnent D24 may be horizontally adjusted left or right on both adaptors 026 and 027. (not shown) In order to fix a return to close mechanism to fit.ments 020 or 024 the pivot lever 08 is placed in the anchor lugs 018 and when the holes in both lugs and lever are aligned the pivot rod P14 is inserted securing the lever D8 and the mechanism attached thereof to the selected fitment as shown in Fig 155. and Fig 156.

The fixing and function of the return to close mechanism is consistent across the three units 4S/4ii/4L and the internal or external doors 10 that are previously herein described therefore when the description refers to unit 4S and door 10 the remaining units 4M and 4L and internal or external doors are applied to and included. Upon fixing a holding fitment 020 or 024 with a return to close mechanism attached to a cavity wall fitment us or ilL or to a mortar bed fitment 4 as previously described the unit 4S may now be fixed in place however the unit standard adjacent to the mechanism requires an access hole drilled into, aligned with and relative to, the attachment D10 on the mechanism. The adjacent standard for example 2S may now be secured in place with care taken to feed the transfer bars 06 through the access hole in the standard 2S. (this can be accomplished with a piece of string or cord into the pivot rod noles in the transfer bars D6 then fed through the access ciole in the standard) A setected' doer' 10 s fixed in place as previously described and a hole matching in diameter and depth and adjacent to attachment 010 is drilled into the dcor prior to setting the attachment D10 into the hole by for example gently tapping with a hazwner. The threaded rod Dl2 is screwed into the threaded orifice in the attachment 010 and the flange 011 is screwed onto the rod D12 protruding from the attachment 010 prior to the connecting bush 013 being screwed until tight onto the remainder of the rod D12 as shown in Fig 156. The transfer bars D6 are connected to the bush 013 by aligning the noles in the bars D6 with the hole in the bush 013 then inserting a pivot rod P14 therein (a pair of pliers tightly gripping one of the bars 06 against the force of the return springs 66 as the string or cord is reroved will help to achieve this) and the door 10 will now return to the closed cosition when opened by hand pressure with the return springs 66 being compressed by the action of the door 10 opening and the lever D8 semi-rotating on the fulcrum of the pivot rod P14 on the lugs D18 in the direction of the arrow 60 with the ancnor brackets D7 returning the springs 66 set against the fitment 020 or the stop fitment D25 at the lugs 017 to the natural position as shown in Fig 155., Fig 156. and Fig 157. when the mechanism is driven by an electric motor Dl as an example a crank D3 with a crank rod D4 and rolling bush 05 is fitted to the drive shaft 02 of the electric motor Dl and set within the slot 016 on the lever D8. Upon the motor rotating in the direction of the arrow 80 the crank 03 turns causing the bush 05 to roll in the slot D16 thereby pushing the lever D8 in the direction of the arrow thus pushing the door 10 to the open position and upon a single complete 360 degree rotation will return the door 10 to the closed position as shown in Fig 155. and Fig 156.

In order to rove a selected door to the ajar position on the fulcrum of pivot rods 45 (or hinges on a door thus fixed) a spring clip D22 is available as shown in Fig 160. The clip 022 is fixed to the edge of the selected door whereby the pivot brackets 18 or 44 (or hinges if applicable) are attached, by drilling a hole into the door edge matching in depth and diameter to the length and diameter of the rod on the clip D22 then inserting the clip rod into the door edge via the drilled hole. The clip D22 is pressed alnost flat when attached to a door in the closed position but upon release of the lock/ latch the clip 022 returns to the pre-compressed position thereby rendering the selected door ajar as shown in Fig 86.

When the door control units herein described are used in conjunction with doors having ironrrongry fixed thereupon (hinges excluded) the description applied to fixing units 4S/4M/4L remains consistent although certain fitments pertaining to ironnongry fixed within a selected unit will not be required.

Certain options are available for example a door may have a lock/latch fixed thereupon with the letterbox sited in the selected unit or vice versa, and a bell may be fixed to a selected unit with a knocker attached to the door or vice versa. Locks and latches fixed upon selected doors will require relative receptacles drilled or stamped from the selected unit and options of fitments are available for within the selected unit germane to the receptacles drilled, cut or stamped into or from the selected unit.

In order to fix receptacle fitment Ri to a small unit 4S fixed upon a timber/ plasterboard partition a unit standard for example 3S requires a receptacle hole R15 drilled into or stamped from adjacent to the latch on the selected door 10 as shown in Fig 171. The adaptor R2 is placed into the slot in the receptacle R3 in fitment Rl and the detachable side R5 is rezmDved prior to semi-rotating the fitment Ri into the standard 3S then sliding the side R5 up/downward into fitment Ri then setting the fitment central and adjacent to the hole Rl5 in the standard 3S prior to fixing the standard with the fitment Ri in place to the partition as previously described with care taken to slide the receptacle R4 over the bracket R13 pre-fixed for example with nails or screws to the stud timber 15 as shown in Fig 165., Fig 168. and Fig 171. Th small self tap screws into the top and bottom holes 87 secures side R5 to fitment Ri. (not shown) Receptacle fitment R7 is suitable to unit 4M and fixed thereupon by applying the fixing method previously described pertaining to fitment Ri fixed to unit 4S when both units 4s and 4M, are respectively fixed to timber/plasterboard partitions. (not snown) In order to fix a receptacle fitinent Ri to a small unit 4S on a cavity;ail doorway opening the fitrnent holder R12 is fixed by sliding the return channels on fitrnent R12 into the return channels on cavity fitment uS and secured thereupon adjacent to the lock/latch receptacles R14 and R15 on the selected unit standard for example 3S. Fitment Ri is fixed to standard 3S as previously described prior tc setting the securing bar R6 into the recess R4 in Eitment Rl then fixing the standard 3S, with fitment Rl and bar R6 in place, to the unit 4S in the cavity wall doorway opening as previously described with care taken to insert the taper end R6 into the slot R16 in the holder R12 as shown in Fig 165., Fig 168. and Fig 169.

In order to fix receptacle fitment R7 to a brick/blockork partition or wall a mortar bed fitrnent 4 is reqiured in place (during the formation of the doorway opening as previously described) adjacent the lock/larch receptacles R14/R15 on the selected unit standard for example 3M. Fitment holder RiO is fixed to the mortar bed fit.nent 4 by sliding the return channels on the holder RiO into the return channels of fitment 4 prior to setting the fitment R7 into the standard 3M and fixing a securing bar R8 into the recess R4 in fitment R7.

The standard 3M with the fitinent R7 and bar R8 in place is fixed to the unit 4M in the doorway opening as previously described with care taken to insert the taper end of the bar R8 into the slot R16 in the fitment Rio as shown in Fig 166., Fig 168. and Fig 172.

In order to fix receptacle fitrnent Ri to a small unit 4S in a doorway opening on a brick/blockwork partition or wall the description applied to fixing the fitment Ri to a selected unit standard 3S for example is consistent. A mortar bed fitment 4 is pre-fixed during tne formation of the doorway opening as previously described as is the fitznent Rl2 shown in hatched lines in Fig 168.

The standard 3S with the fitment Ri and bar R6 in place is fixed co unit 45 with care taken to insert the bar R6 by the taper end into the slot R16 in the fitment Rl2. (not shown) In order to fix receptacle fitment R7 to a medium unit 4M in a cavity wall doorway opening, the fitment holder RiO is fixed by sliding the return channels on RiO (shown in hatched lines in Fig 168) into the return channels on the cavity wall fitment uS and secured thereupon adjacent to the lock/ latch receptacles R14/R15 on the selected unit standard for example 3M shown in Fig 172. The fitatent R7 is fixed to the selected standard 3M as previously described and the securing bar R8 is placed in the recess R4 prior to fixing the standard 3M to the selected unit 4M with care taken to insert the bar RB into the slot R16 as previously described. (not shown) rn order to fix receptacle fitinent R9 to a large unit 4L in a doorway opening on a cavity wall the fitment nolder Ril is fixed by sliding the return channels on Ril into the return channels on cavity fitrnent ilL and secured thereupon adjacent to the lock/latch receptacles R14/R15 on the selected unit standard for example 3L. Fixing fitment R9 to the standard 3L is consistent with method of fixing applied pertaining to fitment Ri to standard 3S. The securing bar R8 is placed in the recess R4 in the fitment R9 prior to the standard 3L being fixed to the unit 4L as previously described with care taken to insert the bar R8 into the slot R16 in the fitrnent Ru as shown in Fig 167., Fig 168. and Fig 170.

In order to fix receptacle fitment R9 to a large unit 4L in a doorway opening on a 200mm. or greater brick/blockwork wall the mortar bed fitment 4R is placed in a mortar bed during the formation of the doorway opening adjacent to the lock/latch receptacles R14/R15 on the selected unit standard for example 3L and fitment Rh is fixed by sliding the return channels on Ru into the return channels on the fit.-nent 4Ras shown in Fig 175. Standard 3L with fitment R9 contained therein is fixed to the unit 4L as previously described with care taken to insert he bar R8 into the slot R16 in the fitment Jill.

Units 4S/4M with fitrnerits R1/R7 respectively in place can optionally be fixed in various positions across the thickness of a doorway opening in a wall by relative siting of mortar bed fitrnent 4 and consequently the selected fitment holder R12 or Rio by fixing methods previously described pertaining to units 4S/4M and relative fitatents on brick/blockwork partitions. (not shown) In order to fix units 4S/4M/4L (with all relative fiLments arid attachments) to doorway openings in timber frame build situations, the fixing description is consistent with fixing units 4S/4M/4L in cavity wall doorway openings with one exception. Whereas the cavity fitment ilL is partly secured by wall ties 49 as shown in Fig 33., in the timber frame situation the fitment ilL is partly secured by nails or screwnails into the timber frame via the wall tie slots in the fitment ilL. (not shown) The units 4S/4N/4L are dismantled from the selected doorway openings herein described by unscrewing the self tap screw 54 in the applicable unit secure fitment 86, prior to pushing the gravity flap 90 inward to pivot upward on the fulcrum of the rod 117 by for example a long fine screwdriver of relative diameter, and when the holding rods 91 are vertical the selected standard is pulled clear by hand pressure whilst simultaneously slightly spreading the return edges of the standard outward in opposite directions. This action is repeated on the oPposite standard then the lintel is removed by hand pressure spreading the return edges slightly apart whilst simultaneously guiding the lintel downward over the lintel supports 40S/40'.i/40L until clear. (not shown) If spacers l7S/17M/17L are in place the same screwdriver may be used to lever the selected spacer/spacers from under the selected standard prior to removal thereof.(not shown) If doorsteps 27,43,47 or 55, are fixed removal thereof is required prior to dismantling the selected unit. To remove the selected step the self tap screws 54 into clips 51 are unscrewed and the step is pushed sligntly outward from the unit prior to lifting clear. (not shown) Means are provided in the form of replacement fitmerits (shown in Fig 161., Fig 162., Fig 163. and Fig 164.) to fix units herein described to exsisting doorway openings with door, frame, facings and checks traditionally fixed thereupon, provided height arid width dimensions germane to a selected unit are obtained. To render an exsisting opening uitable to a selected unit, the door, frame, facings and checks thereupon are removed and relative materials are built on or removed from (whichever is applicable) the selected opening until dimensions gerna to the selected unit are achieved. (not shown) In order to fix a small unit 4S to an exsisting doorway opening in a timber/ plasterboard partition the replacement fitment Al with support channels A3 and slides A4 in place is fixed to the vertical timbers of the opening by for example screwnails or nails into the timber arid floor via the holes A5 in the fitment Al andflange A2. (not shown) The unit 4S can now be fixed in place and the required relative holding and securing fitrnents are pre-fixed as previously described.(not shown) In order to fix unit 4S to an exsisting doorway opening in a brick/block partition/wall/cavity wall replacement fitment Al is fixed to the upright or vertical sides of the opening by for example screwnails into rawlplugs in the brick/blocwork via holes AS in fitment Al and into the floor with nails or screwnails (if wood) or into rawiplugs (if canpound or concrete) via holes A5 in the flange A2. (not shown) The unit 4S can now be fixed in place with the relative fitments pre-fixed as previously described.

In order to fix unit 4M to an exsisting doorway opening in a timber/ plasterboard partition the description applied to unit 4S in an exsisting opening is consistent. The holding and securing fitments selected require to be relative to unit 4M. (not shown) In order to fix unit 4M to an exsisting doorway opening in a brick/blockwork partition or wall or cavity wall the description applied to a small unit 4S in an exsisting opening is consistent. The holding and securing fitments selected require to be relative to unit 4M. (not shown) In order to fix unit 4L to an exsiting doorway opening in a brick/blockwork partition/wall/cavity wall the replacement fitment A7 with support channels A3 and slides A6 in place as shown in Fig 162., are required and secured to the upright/vertical sides of the opening by for example screwnails into rawlplugs in the brick/blockwork via holes AS in the fitxnent and into the floor with nails or screwnails (if wood) or rawiplugs (if canpound/concrete) via holes AS in the flange A8. (not shown) The unit 4L can now be fixed in place with relative holding and securing fitments pre-fixed as previously described.

Locks and latches are available in various forms suitable to fixing within a selected door control unit herein described, and when security is required for example on front or entrance doorway openings an autcxnatic two bolt lock U. is available (as an addition to the lock selected) and is fixed within the unit on the standard adjacent to the pivot brackets on the selected door with the action of the bolts activated by the opening/closing action of the door. (described later) Certain locks are available with an electrification mechanism via remote or coded switch, and on sane latches push control with the option of foot control mecanism are available. (described later) A casement L17 is optionally available with holes 1 therein germane to lock bolts L7 and L8 and activator L12 on the locks Li and L4 as shown in Fig 117.

The autcxnatic two bolt lock LI is fixed within a small unit 4S on a doorway opening in a cavity wall by placing the return channels on two fitments 12 into the return channels on a pre-tixed cavity wall fitment uS prior to lock LI being placed between fitments 12 and secured therein by screws 54 into holes 87 as shown in Jig 8.and Fig 98. Lock Li and titments 12 are positioned on fitment US with bolts L/ and activator L12 aligned to holes I on selected standard (lock Ll is fixed within standard adjacent to the pivot fitments 44 on the door edge as shown in Fig 103.) and secured therein by the screws 42A on fitment 12 turned clockwise to tighten onto the return channels ot cavity fitment uS by for example a hand operated screwdriver. (not shown) A receptacle titment L2 germane to lock Li is required on selected door 10.

In order to fix receptacle fitment L2 upon a selected door 10 two holes ccnpatab1e in depth and diameter to the receptacles Lii on fitment L2 are drilled into the door edge whereby the pivot fitments 44 are fixed, adjacent to and aligned with the bolts L7 protruding tran the holes I in the selected small unit standard. The receptacles Lil are placed into the drilled holes on the door edge and driven therein by for example hamer blows until fitment 12 is hard against selected door as shown in Fig 103.

The lock Li will operate when the selected door 10 with fitment L2 in place therein is closed upon the small unit 4S selected standard as previously described with the action of fitment L2 on activator L12 as closing occurs pushes the activator inward into the sleeve L26 via the hole I in selected standard. Activator L12 is attached to lever guide L25, and return spring 66 within the slotted guide sleeve L26 on the holding bracket L27. The pushing action on the activator L12 sends the lever guide L25 in the direction of the arrow 80 simultaneously compressing the spring 66 whilst the two levers L16 pivot on the fulcrum of the rods L15 pushing bolts L7 into receptacles LII on fitment L2 on door 10. The bolts L/ are contained within slotted sleeves L22 in holding brackets Ll3 at either end ot the lock Li and are attached to both levers Ll6 by pins L21 via the slots in the sleeves L22. The pivot rods L15 are fixed in place upon brackets L14 sited above and below bracket L27 with pivot rod bushes LiB fixed to the levers Ll6 as shown in Fig 13., and in sectioned top half veiws in Fig 104., and Fig 105. When the door 10 is opened the spring 66 is decanpressed returning the activator L12, attached lever guide L25 and the two levers L16 to the neutral position, simultaneously retracting the two lock bolts L7.

The three bolt canbined lock and latch TA as shown in Fig 99., and Fig 101., is fixed within a small unit 4S under the standard opposite that whereby lock Li is contained, with the description of fixing applied thereto consistent.

The unit 4S is now fixed as previously described with care taken to align the holes 1 in the selected standard with the two lock bolts L7, latch bolt LB and key barrel receptacle L29 on lock L4 and to guide the standard over the protruding part of the two way push disc L37 as shown in Fig 106. The lock L4 is controlled manually on the interior of a doorway opening by a handle 19 or 19A and fraiL the exterior by a key operated barrel L29 via the receptacle 24, with examples shown in Fig 101., and Fig 119. A lock/latch bolts receptacle L3 is required on the edge of the selected door adjacent to and aligned with the lock bolts L7 and latch bolt LB within the selected unit standard as shown in Fig 99., Fig 101., and in place in Fig 23.

The latch bolt LB on the lock TA remains in the load or charge position and protrudes through the lock casing and the selected unit standard at hole 1 as shown for example in Fig 106., and engages within the door receptacle L3 when the selected door is closed upon the selected unit striking the latch bolt LB enroute and thereby pushing the bolt LB into the slotted tubular sleeve L30 simultaneously ccrrpres sing the spring 66 contained therein until the door 10 is checked against the selected unit standard whereby the the bolt, receptacle Lii is aligned with the bolt L8 permitting the spring 66 to deccrnpress thereby sending the bolt LB into the receptacle Lll thus securing the door in closed position whereby the two rining receptacles Lii are aligned with the bolts L7 in the lock L4. (not shown) I%D unload the bolt L8 fran the interior of a doorway opening, the handle 19 or 19A is rotated manually anti- clockwise one quarter revolution on the shaft L24 turning push disc L37 thereupon against receiver bar L34 attached to the flange on the slotted slide L38 causing the slide L38 to nve in direction of arrow 80 thus pulling the latch bolt LB by way of the pin L60, through both bolt LB and sleeve L30, against spring 66 until clear of the receptacle Lii in the door as shown for example in Fig 120. -43-.

in order to unload the latch bolt L8 fran the exterior ot a doorway opening a selected key L43 relative to barrel L42 within barrel L29 is inserted via receptacle 24 into barrel L42 then rotated clockwise one quarter revolution thereby rotating eccentric disc L44 attached thereupon against lever bridge L65 causing levers L41 to pivot on fulcrum of bolt L98 thereby pushing the latch bolt L8 by pin L6u into sleeve L30 canpressing spring 66 enroute as shown in Fig 119. and Fig 123. ,until latch bolt L is clear of receptacle bli in the selected door 10. With bolt L8 held within sleeve L30 by key/handle action described the door may now be opened.

in order to load the t bolts L7 into receptacles LU on fitment L3 on a selected doorlO fran the interior of a doorway opening the handle 19/19A is manually rotated clockwise one quarter revolution on shaft L24 whereby the disc L37 attached thereupon rotates against the bar L34A bridging the levers L32 causing the levers to pivot on the fulcrum of the offset shaft L39 in the direction of arrows 80 whereupon the external bolt levers L16 pivot on fulcrum of rod Ll5 by the action of levers L32 pushing against rollers L19 (attached to lever L16 by shafts L36 and bushes L20 at one end) thereby pushing the two lock bolts L7 attached to the levers Llb by pins L21 through the slotted L23 sleeve L22 outward into the receptacles Lll in the door 10 canpressing the springs 66 simultaneously as shown in Fig 101., Fig 106., Fig 107., and in section in Fig 102., whereby the action of the upper lever L16 is indicated upon the handle rotating clockwise with the lower lever LJ.b action inversely duplicated. (not shown) The levers L32 are held in the load position by two spring controlled check bars L50 fixed to a quick release machanism shown in Fig 110., Fig 111., Fig 112., Fig 113., and Fig 114., (described later) and with the check bars L5U in place the handle 19/l9A returns to the neutral position by the action of the springs 66 on the spool L80 in the holding titment L82 attached to shaft L24 between the lock L4 and the selected unit standard as shown in Fig 116.

In order to load the bolts L7 in lock L4 into the receptacles Lii on a selected door 10 fran the exterior of a doorway opening a key L43 relative to barrel L42 is insertea therein via receptacle 24 into barrel L29 as srown in Fig 108. and Fig 109., then rotated one quarter revolution anti-clockwise whereby the disc L33 attached to shaft L35 is turned in the same direction against the bridging bar L34B pivoting the levers L32 on the fulcrum of shaft L39 in the direction of the arrows 80 whereby rollers L19 are again set in notion as per description applied to handle 19/19A concluding identically pertaining to lock bolts L7. The selected key will return to entry position within barrel L42 by the action of the springs 66 attached between anchors L67 and spool L140 on the barrel L29 as shown for example in Fig 128., and upon completion of action described the selected key may be reioved.

In order to fix lock bolts receptacle L3 upon a selected door 10, three holes canpatable in depth and diameter to receptacles Lli are drilled into the door edge in alignment with the bolts L7/L8 protruding fran the adjacent selected unit standard wherein lock L4 is fixed within. The receptacle L3 may now be fixed upon the selected door by placing the receptacles Lii into the drilled holes and gently tapping thereupon with a hand held haniner until secure hard against the door edge. (not shown) Handle brackets LlO are available as shown in Fig 99., and may be optionally fixed upon receptacle L3 by for example spot weld or rivets. Handles 23 are available as shown in Fig 101 and optionally fixed upon receptacle L3 by for example small screws via holes in brackets Lb and receptacle L3. Receptacle L3A is alternatively available as shown (hatched lines) in Fig 99., and identically fixed upon selecetd door. (not shown) In order to return bolts L7 fran load to neutral a quick release mechanism is available contained within cannister L17A and controlled on the interior of a doorway opening by the key selected for loading/unloading bolts L7/L8 f ran the exterior. Tb unload bolts L7 the key is inserted into barrel L42 within barrel L29 via receptacle L68 and therein rotated anti-clockwise one quarter revolution thereby causing the shaft L61 attached between barrel L29 and bush L62 to rotate identically turning eccentric spool L54 whereupon the rolling bush L48 rolls along the lever bridge L65 connecting the twin upper levers L5l thereby forcing the levers L51 to pivot on the fulcrum of the rod L15 in the bracket L53 simultaneously lifting the upper check bar L50 by way of the bar L55 attached between levers L51 until the check bar L50 is clear of the lever L32. (check bar L50 pivots on the fulcrum of the same rod Ll5 applicable to levers L5l) The action of levers L5l simultaneously causes the bushed roller L48 attached thereupon to roll along the shaped edge of the offset levers L63 whereupon the levers L63 pivot on the fulcrum of the rod L15 in bracket L53 fixed upon the top of the cannister L17A and thereby pushing the lever L56 downward within the guide channel L57 (in the direction of the arrow 80) by the downward pressure of the levers L63 against the pin L59 through lever L56 in the slot 58 whereby the lower lever 52 pushes the lower check bar 50 in an identical action to that applied on the upper check bar [50. When both check bars L50 are clear of the two levers 32 the springs 66 compressed against the two outer levers [16 return the levers L16 to the neutral position returning the to lock bolts 7 attached thereupon into the sleeve L22 arid clear of the receptacles Lii in the selected door. This action simultaneously compresses the springs 66 on the upper and lower check bars L50 ready for the next bolt loading action by handle or selected key as shown in Fig 101., Fig 102., Fig 110., Fig ill., Fig 112., Fig 113. anci Fig 114.

In order to control the quick release mechanism from the exterior of a doorway opening the selected key (previously applied on the interior) is inserted into the barrel [29 via the receptacle 24 then rotated one quarter revolution in a clockwise direction whereby the shaft L35 is identically rotated turning the attached rolling bush spool [49 with two rolling bushes 48 attached therein to roll along the upper and lower twin levers L5l and 52 thereby lifting the levers against both the check bars L50 by way of the two push bars [55 causing the check bars 50 to lift and lower clear of the levers L32 as previously described pertaining to the interior action with an identical outcome as shown in Fig 101., Fig 102., Fig 110., Fig lii., Fig r12., Fig 113. anci Fig 114.

A single lock/larch L5 as shown in Fig TOO., is available for fixing within a selected unit on a doorway opening and manually controlled on the interior by a handle 19/19A and on the exterior by a selected key and is available with fixing options. The lock L5 requires a receptacle 6 fixed to the selected door and has optional handle brackets [10 which may be fixed to the receptacle L6 as shown in Fig 100., as previously descr.ibed pertaining to receptacle L3 and can be fixed in place on the selected door by drilLing a hole in the door compatable in depth and diameter to the receptacle Lii and in a position on the door edge adjacent to the lock bolt [8 ithin the selected unit by gently tapping into place with a hand held hammer. (not shown) In order to control the lock L5 Eroin the interior (the latch bolt [8 can e brought to the load position within the receptacle Lii as previously described by the closing action of the door) the handle 19/19A is manually rotated one quarter revolution in an anti-clockwise direction (a rotation checic L115 is available restricting rotation direction and described later) thereby turning the shaft L95 and attached eccentric push disc [33 identically, causing tne disc L33 to push against the bar L34 in the slotted slide L38 thereby pushing the slide L38 in the direction of the arrow 80 simultaneously pulling latch bolt L8 into the sleeve L30 by way of the pin L60 through the bolt L8, sleeve L30, and slide L38, compressing the spring 66 enroute until the bolt L8 clears the receptacle Lil on the door. To promote smooth action and aid return to neutral of the bolt L8 a compensating spring L88 is attached to the slide L38 and anchored upon the lock cannister Ll. Upon completion of the action to unload the bolt L8 the handle 19/19A is returned to neutral by the action of the springs 66 attached to a spool L75 on the shaft L95 and anchors L67 on the lock cannister thereby returning the eccentric disc L33 to neutral freeing the slide L38 whereby the bolt L8 returns to load position by the de-compressing action of the spring 66 within the sleeve L30 pulling the slide L38 enroute by way of the pin L60 aided by the compensating spring L88, as shown for example in Fig 116., Fig 119., and Fig 123.

In order to control the lock L5 from the exterior a selected key is inserted into the barrel.L42 via the receptacle 24 and rotated one quarter revolution clockwise thereby rotating the eccentric disc L44 on barrel L29 identically, pushing the disc L44 against the twin levers bridge L65 thereby pivoting the levers L41 on the fulcrum of the set bolt L98 causing the bolt L8 by way of the pin L60 to retract from the receptacle Lii into the sleeve L30 compressing the spring 66 enroute. The key returns to the entry position by the action of the springs 66 attached to the spool Ll40 on the barrel L29 and the anchors L67 and upon completion of this action the bolt L8 returns to load position by the de-compressing action of spring 66 in sleeve L30 as shown for example in Fig 119., Fig 123., and Fig 128. The key may now be removed. (not shown) Fixing options are available whereby the lock L5 can be fixed upon a doorway opening prior to a selected unit being fixed or alternatively fixed upon a selected small unit standard iS or 3S (as applicable) prior to fixing the selected standard, or by removal of the standard, (as previously described) fixing the lock L5 in place thereupon then re- fixing the standard. (not shown) In order to fix lock L5 to a selected small standard 1S/3S the lock L5 is placed within the selected standard by inserting the bolt L8 into the hole 1 pre-drilled in the standard and onto the bracket L97A pre-fixed upon the standard by for example self tap screws 54 through the standard into the holes in the bracket L97A. The lock L5 is hand held thereupon whilst the two raining brackets L97 are placed on lock L5 and when the shaft L95 an the barrel L29 are aligned with the holes 1 in the selected standard the brackets may be fixed in place on the standard by for example self tap screws 54 via the holes in the brackets L97 into ccmpatable holes drilled into the standard.

Four threaded circular sockets L9l are available on the key receptacle 24 ccnpatable in diameter to the set screws and set bolts (optionally fixed in pairs, fixing the set bolts described later) required for fixing. Receptacle 24 and barrel L42 thereof are placed via hole I on the external face of the standard into the barrel L29 and secured therein by screws 42 via campatable holes drilled in the standard into the sockets L91 on the receptacle 24 shown with an example of a key L43 in Fig 119., and brackets L97/L97A in Fig 124.

A latch L5A is available for fixing within a selected unit on a doorway opening with fixing options identical to lock L5 and handle controlled frcmi interior and exterior. (handle fixing options and the means to adapt the latch to a lock by way of a handle are described later) In order to control latch L5A fran the interior of a doorway opening the description applied to lock L5 is consistent however eccentric disc L33 thereby described can be replaced by disc L117 permitting handle rotation direction options to unload bolt L. Exterior control of latch L5A by way of handle 19/19A requires handle rotation one quarter revolution (clockwise or anti-clockwise) thereby rotating eccentric disc Ll12 on the shatt L114, attached between bush 48 on the latch casnent and the two way receptacle L45, against the twin levers L4l bridge L65 causing levers to pivot in a repeat action thereby described pertaining to lock L5 with an identical outccme, as shown in Fig 124. The latch bolt L8 can be unloaded then returned to load tram the exterior by the closing action of the selected door as previously described.

Rotation checks L1l5 are available and fixed upon shafts L95 and L35 within lock L5, and upon shafts L95 and Ll14 within latch L5A restricting handle/key rotation to one selected direction. The rotation check L115 when fixed upon a shaft is set against a round bar L1l6 fixed to the shaft receptacle L45 and prevents shatt rotation except in a direction away tram the bar L116 as shown in Fig 119., and Fig 124., therefore check Ll15 inversely fixed will have the opposite effect on the rotation direction. (not shown) The latch L5A is available to control by handle rotation one quarter revolution in a clockwise or anti-clockwise direction by the eccentric discs L1l2 and Lfl7 fixed upon shafts L114 anci L95 respectively rotating against the lever bridge L65 and and receiver bar L34 individually as previously described by omitting the rotation check L115 and bar L116. (not shown) A lock/latch bolt L8 stay titment L71 with detachable push button L/2 fixed via a nylon bush 48 in a pre- drilled hole in the selected unit standard an in close proximity to the handle l9/19A on the interior of a doorway opening is available within certain latch/locks herein described. In order to retain a lock/latch bolt L8 in the unload position, the handle 19/19A is rotated as previously described thereby unloading the bolt L8 and when the handle 19/19A (and therefore the bolt L5) is held stationary thereupon the button L72 is pushed by hand (finger thereof) inward in the direction of arrow 80 thereby sending the stay titment L71 by way of the guide pins L73 in brackets L74 in an identical direction until fitment L71 stops against the sleeve L30 thereby compressing the springs 66 on the pins L73 enroute. The handle 19/19A is now released whereupon the decompressing pressure of the spring 66 within the sleeve L30 drives the slide L38 by way of the pin L60 hard against the titment L71 whereby the decompressing pressure of the spring within the sleeve L3U is greater than the combined pressure of the springs 66 on pins L73 consequently I itment L71 and bolt L8 are held stationary therein as shown in Fig 115. To release stay titment L71 thereby returning bolt L8 to load, the handle 19/19A is rotated slightly anti-clockwise thereby rentving slide L38 fran against fitment L71, the springs 66 on the pins L73 now decompress returning fitment L71 and attached push button L72 to the ready for use position. (not shown) In order to fix lock L5 or latch L5A within a selected unit on a doorway opening in for example cavity wall, brick/block walls or partitions of varied thickness, titments 3, 3A, 8, 8A are available pertaining to unit selection, and placement thereof across the thickness of a relevant doorway opening, as shown for example in Fig 3., Fig 4., Fig 5., Fig 6., Fig 7., Fig 8., Fig 9., Fig 10., Fig 14., Fig 15., Fig 16., Fig 17., and section in Fig 18. Fitments 3, 3A, 8, and 8A with optional sizes and torin hatched, are shown in Fig 62., Fig 63. and Fig 66., and can be fixed as shown or inversely rotated in left/ right, front/rear direction (not shown) as required dependent upon placement across opening thickness and directional opening of selected door. In order to fix lock/latch within selected I itment 3/A/8/8A requires the I itinent to be slipped over lock/latch chosen with care taken to ensure the holes I in the titment are matched in alignment with the lock/latch bolt L8 prior to sliding titment into place whilst simultaneously depressing bolt L8 to the unload position within the lock/latch until the bolt L8 is adjacent to the hole in the selected fitment whereby the bolt L8 returns to load position via the hole 1 thereby held secure until the selected standard is fixed in place.

In order to fix lock L5 within a selected standard iS or 3S of a small unit 4S on a doorway opening in a cavity wall the fitment 3 is positioned with the return channels thereupon adjacent to the return channels on cavity wail fitment uS then slid into place on the return channels until adjacent to the lock hole 1 pre-drilled in standard iS or 3S and thereby held in position on fitment ilS by for example hairunered notches or clips 42.(previously described referring to lock Li) The lock L5 is fixed within fitment 3 as previously described and the selected standard may now be fixed upon the doorway opening as shown in Fig 7., and Fig 8. Latch L5A is identically fixed in the same situation. (not shown) In order to fix lock L5 within a selected standard 1L or 3L of a large unit 4L on a doorway opening in a cavity wall the fitment 3 is positioned with the return channels thereupon adjacent to the return channels on fitment ilL and concluded as previously described referring to fitment 3 in a small unit 4S as shown in Fig 14. Latch L5A is identically fixed in the same situation. (not shown) In order to fix lock L5 within a selected standard iS or 3S of a small unit 4S on a doorway opening in for example double brick/blockwork wall/partitions (walls or partitions of a greater thickness are applicable) 150mm blockwork wall/partitions single course carimon brick/blockwork wall/partitions the fitment 3 is positioned with the return channels thereupon adjacent to the return channels on mortar bed fitment 4, 4A, 95, or 98, (as applicable) pre-fixed in place during the building work formation of the doorway opening, then slid into place on the return channels until adjacent to lock hole 1 in the selected standard and thereby held in position on the selected fitment 4/4A/95/ 98 by hammer blows or clips 42, the lock L5 is fixed in place on the selected fitment 3 as previously described and the selected standard iS or 3S can now be fixed in place as shown in Fig 5., Fig 9., and Fig 16. Latch L5A is identically fixed in the same situations. (not shown) In order to fix lock L5 within a selected standard iN or 3M of a medium unit -so- 4M on doorway openings in non cavity walls and or partitions previously listed referring to unit 4S. The fitment 3A is positioned adjacent to the return channels on fitment 4, 4A, 95 or 9B (as applicable) pre-fixed in place during the formation of the doorway opening, then slid into place until adjacent to lock hole I in the selected standard thereby held in place on the selected fitment 4/4A/95/98 by hanmer blows or clips 42. The lock is fixed in place on the fitment 3A as previously described and the selected standard 1M or 3M can now be fixed in place as shown in Fig 17. and section in Fig 18. Latch L5A is identically fixed in the same situation. (not shown) In order to fix lock L5 within a selected standard 1L or 3L of a large unit 4L on doorway openings previously listed referring to small 4S and medium 4M units, the fitments required and the description previously applied remain consistent as shown in Fig 3., and Fig 4. Latch L5A is identically fixed in the same situations. (not shown) A support extension frame Lb3 and a receptacle 24/barrel L29 extension Ll18 are available when lock L4 is fixed upon a cavity wall within a large unit 4L.

Lock L5/latch L5A key receptacles 24/barrels L29 and handles 19/19A extensions L109 and L136 are available and are fixed in conjunction with the handles 19/ 19A and/or the receptacle 24 when the selected lock or latch is fixed within a medium 4M or large 4L unit, with examples of extensions shown in Fig 117., Fig 118., Fig 121., Fig 122., and Fig 127. Handles 19 and 19A, key receptacle 24 are available with alternative fixing and shape thereof, shown for example in Fig 114., Fig 123., Fig 124., Fig 125., Fig 126., and Fig 127.

In order to fix handle 19 and key receptacle 24 (of either shape) to a lock L4 within a small unit 4S the lock L4 is fixed in place on fitment uS as previously described. Prior to the selected standard being tixed the plastic bush L89 is placed by way of the small recess thereupon onto the circular part of the two way eccentric disc L37 protruding via the lock casement LilA with care taken to align the holes 37 in the bush L89 with the pre-drilled holes in the lock L4. The selected standard can now be fixed in place as previously described whereby the shaft L24 with attachedsecuring disc L90 is inserted (with the threaded socket L9l outward) via the hole I in the selected standard and the bush L39 into the square socket in the two way disc L37 until the end of the shaft L24 rests in the socket and the securing disc L90 is hard against the large recess in the bush L89. The securing bush L89A is placed by way of the recess thereupon onto the shaft L24 and over the disc L90 until the recess is hard against the disc L90 and the holes 87 in the bush L98A are aligned to the holes 87 on the inner bush L89 and the pre-drilled holes in the selected standard. T set bolts L86 are pushed through the holes 87 in bushes L89 and L89A via the pre-drilled holes on the inside face of the standard, the pre-drilled holes on both ends of the lock cannister L17A until the threaded ends of the bolts L86 are adjacent to the pre-drilled holes on the outer face of the selected standard. The receptacle 24 is inserted by way of the attached barrel L42 via the hole 1 on the outer face of the standard into the lock L4 barrel L29 with care taken in alignment of the threaded sockets attached upon the receptacle 24 with the protruding set bolts L86 and when the receptacle is firmly against the outer face of the selected standard the set bolts L86 are screwed to tighten within the sockets on the receptacle 24 (by for example hand controlled screwdriver not shown) thereby securing receptacle 24 in place upon the outer face of the selected standard. The handle 19 is now placed by way of the attached swivel bush cover L132 and square socket thereupon onto the shaft L24 until the bush cover Ll32 is over the bush L89A whereupon the threaded socket on the end of the shaft L24 will be entered ccipletely within the handle 19. A set screw 42 on a washer 102 is screwed to tighten in the threaded socket L91 on the shaft L24 by way of the recess, and ccxnpatab].e hole in the handle 19 thereby securing the handle 19 in place on the inner face of the selected standard. A handle recess cover L132 is available and fixed by pushing into the recess in the handle 19 after the fixing thereof as shown in Fig 120. Contained within the lock L4 cannister L17A is the quick release mechanism relative to bolts L7 and controlled on the interior of a doorway opening by the key operated receptacle L68 as previously described.

In order to fix receptacle L68 and attached barrel L42 to a selected standard of a small unit 4S the lock and standard are fixed in place as previously described. The receptacle L68 is placed by the barrel L42 via the hole 1 on the inner face of the selected standard into the barrel L29 protruding fran the lock LA until the receptacle is against the face of the standard whereupon t holes are drilled (via the canpatable holes in the receptacle L68) into the inner face of the selected standard whereafter t small self tap screws 54 are screwed to tighten (slightly diagonally) thereby securing the barrel L42 and attached receptacle L68 to the selected standard as shown in Fig 114.

A mechanism El8 is available (described later) and if fixed requires rerroval/ ref ixing of selected standard in order to drill holes pertaining to screws 54.

In order to fix lock IA within a selected standard of a medium unit 4M on a doorway opening in a cavity wall the description applied to lock L4 within a small unit is consistent, however prior to fixing the selected standard a lock extension bush L109 (fixing thereof described later) is required upon the lock L4, thereafter the selected standard and Key receptacle 24 may be fixed as previously described, shown for example in Fig 122. Lock LI is identically fixed within the opposite selected standard wherein the extension bush L109, and the key receptacle 24 are not required. (not shown) The casement L17 is optionally fixed upon Lock L4 by depressing bolt LB within the lock prior to sliding the casement over the lock until bolt L8 fld bolts L7 align with holes I in the casenent whereupon bolt L8 is released via the aligned hole 1 in the casement and upon fixing connectors 12 to the lock LA, (previously described) casement L17 is secured thereupon as shown in Fig 99.

The casement L17 may also be fixed upon lock Li in similar fashion as shown in Fig 98.

A key barrel extension L116 is available when fixing lock L4 or lock L5 are individually fixed within a selected large unit standara.

in oraer to fix extension L118 to lock L4 a spring loaded split bush LlOO is placed within the barrel receptacle L29 with the two boss studs on either hair of the bush LlOO set into key tumbler holes 29A (two above, two below) on the lock barrel receptacle L29. A short shaft Liol with receptacle bush Ll02 is placed between the split bush LlOO on either V recess thereupon. The extension L112 is placed against the lock ensuring the shaft L103 enters the receptacle bush L103 and the two male/female threaded rods L104 (attached to extension by two bracers L106) are screwed onto the two bolts L86 protruding fran the lock. The extension Lllb may now be fixed secure upon the lock by self-tap screws 54 via the holes in the brackets LIO/ into corresponding holes drilled into the lock L4. The selected standard and key receptacle 24 can now be fixed as previously descrited as shown in Fig ll3.

An extension frame L83 is available when lock LI and lock L4 are fixed within selected standards of a large unit 4L.

In order to fix the extension frame L83 to lock IA (with/without casement L17 thereupon) the frame L83 is placed via the clearance gap L84 thereupon over the key barrel extension 1118 until the frame is against lock casnent L17A and the upper and lower holding fitments 13 and 14 whereby the holes 87 in the extension frame L83 align with corresponding holes 87 in fitnents 113 and 14 and secured thereupon by self tap screws 54 via the holes 87, with care taken to align and insert the rods Ll04 into the holes L87 on the outer panel of the extension 1118 as shown in Fig 117., and in place on a cavity wall in Fig 121. The lock connectors 12 are now placed upon the large cavity wall fitment llL, the lock 4 and attached extension fitments L83 and 1118 are placed between the connectors 12 with care taken to insert protruding rods 1104 and barrel bush L9 into holes 87 and 1 respectively in the connector 12 adjacent to the frame L83 whereupon the connectors 12 are fixed to the lock IA and frame L83 by self tap screws 54 as previosly described, and when the lock 4, frame L83, extension L1l8 are aligned on fitrrent liL (relative to holes 1 in the selected standard) the connectors 12 are secured thereupon by the screws 42 brought to tighten on the return channels of the fitment 111 as previously described and shown in Fig 121. The selected standard may now be fixed in place as previously described.

In order to fix lock 1 within a selected standard of a large unit 4L in a doorway opening on a cavity wall the description applied to fixing lock IA is consistent however extension 118 is not required and is excluded. (not shown) In order to fix extension bush 109 to a selected lock IA or L5 the bush 1109 is placed against the selected lock with the recess 1110 thereupon over the bush 9 and secured thereupon by four self tap screws 54 via the bush 109, connector 12 (if fitted) into holes 87 in lock. Split bush 1100 is placed in barrel receptacle 29 as previously described, the set bolts L86 are replaced by bolts L86A. Key receptacle 24 and barrel L42 are fixed in place as previously described as shown in Fig 122.

In order to fix lock L4 within a selected standard of a medium unit 4M in a doorway opening on a brick/block wall/partition of l50riin. and upward varying thickness the adjustable nortar bed fitment 98 requires to be fixed in place relative to the lock IA, selected standard, and position thereof across the thickness of the doorway opening during the formation of the opening as shown in Fig 72., and details fitment 98 in Fig 73. (fitment 98 is an alternative to cavity fitment llS in a non-cavity situation) The lock 4 is secured in place between t connectors 12 as previously described but the screws 42 on the connectors 12 are instead brought to tighten upon the return channels of the fitment 98 prior to the extension bush L109 and the selected standard being fixed in place as previously described. (not shown) In order to fix lock Li within a selected standard of a medium unit 4M in a doorway opening on a brick/block wall/partition of 150am. and upward varying thickness the description applied to fixing lock IA is consistent however the extension bush L109 is excluded. (not shown) In order to fix lock L4 within a selected standard of a large unit 4L in a doorway opening on a brick/block wall/partition of 150am. and upward varying thickness the nortar bed fitment 98 is pre-fixed as previously described, the lock L4 is fixed between connectors 12 to fitment 98 as previously described when fixing to medium unit 4M. The barrel extension fitment L1l8 in Fig 118., and selected standard are fixed therein as previously described. (not shown) In order to fix lock Li within a selected standard of a large unit 4L in a doorway opening on a brick/block wall/partition of 150am. and upward varying thickness the description applied to fixing lock IA is consistent. Extension fitment L118 is not required and is excluded. (not shown) In order to fix key receptacle L68 to a medium unit 4M the description applied to fixing receptacle L68 to a small unit 4S is consistent. (not shown) In order to fix key receptacle L68 to a large unit 4L the description applied to fixing receptacle L68 to a small unit 4S is consistent. (not shown) Ccznpact lock C5 and canpact latch 5C are available for fixing within the units 4S, 4M, and 4L herein described and are controlled by handle/key for lock CS and handles for latch SC as shown in Fig 125., Fig 126. and Fig 127., and may be optionally fixed direct to a selected standard or upon a holder 13 within a standard. Lack CS and latch SC are identically fixed within holder 13 by sliding the lock/latch left or right into the holder via the gap L85 whilst depressing the bolt L8 (by hand) until aligned with, then released via the hole 1 in the fitment 13 securing the lockC5/latch5C thereupon.

In order to fix a latch 5C within a selected standard of a small unit 4S in a doorway opening on a timber/plasterboard partition the latch 5C is placed within the holder 13 as previously described, the holder with attached latch are fixed to the stud timber 15 (with nails/screwnails) on a selected side of a doorway opening prior to fixing plasterboard 16 as shown (on both sides of the opening as optional example only) in Fig 74. The selected standard is now fixed in place as previously described with care taken to guide standard over protruding latch/lock shafts L95 and L126 as shown in Fig 126. Lock C5 is identically fixed in the same situation as shown in Fig 125., however the selected standard requires to be rotated slightly, horizontally anti-clockwise (prior to fixing secure) to allow the screws 42 in the receptacle 24 being brought to tighten by a hand operated screriver. (not shown) In order to fix t selected handles 19/19A to latch 5C in a small unit 4S the selected standard is fixed in place as previously described, a bush L131 is pressed into hole 1 on the standarc a spreader bush L96 is fixed to shaft L95 via bush L131 by the screw 42. (brought to tighten thereupon by scredriver) the bush cover Ll32 is pressed onto bush Ll3l the selected handle is placed onto the spreader L96 the swage L130 is now entered via recess in handle and forced into the bush L96 (gentle hanr blows required) until hard against the recess on the handle causing a spreading action on the bush thus securing the selected handle in place with the action repeated on shaft L126 whereby the rnaining handle is fixed as shown in Fig 126. and Fig 127.

In order to fix a selected handle 19/19A to a lock CS on a small unit 4S the description applied to fixing handles to latch SC is consistent. (not shown) Lock C5 is secured to a small unit 4S selected standard by placing the lock within the standard simultaneously entering the bolt L8 into relative hole 1 prior to fixing selected handle as previously described. The receptacle 24 with attached key barrel L12l is placed into the receptacle barrel L120 and the screws 42 are brought to tighten into the receptacle via holes 87 in the selected standard (prior to fixing standard) as shown in Fig 125. Latch SC is similarly fixed in the same situation whereby both selected handles 19/19A are fixed in place upon the standard as previously described as shown in Fig 126. and Fig 127.

In order to control the lock CS fran the exterior of a doorway opening a key L43 relative to the barrel Ll2l is inserted via the receptacle 24 into barrel causing tumblers therein to engage into holes L29A in barrel receptacle L121.

The inserted key 143 is rotated one quarter revolution clockwise thereby causing the barrel L120 with attached eccentric disc Ll25 thereupon to rotate the same direction (rotation check 1115 attached upon shaft Ll22 prevents incorrect rotation as previously described) against twin lever L119 bridge L137 forcing levers to pivot on the fulcrum of bolt 198 thereby pushing the pin L60 fixed through bolt 18 along slotted sleeve L30 (direction of arrow 80) wherein bolt L8 is contained. Key L43 is returned to entry position by the action of the spring 66 attached between spool L79 on shaft Ll22 and the lock casement. The bolt 18 is returned to load position upon release of the key L43 and the pressure of the spring 66 within the sleeve L30. Lock C5 is controlled fran the interior of the opening by the handle 19/l9A rotating one quarter revolution anti-clockwise (by hand pressure) thereby rotating eccentric disc 1124 on shaft L95 in the same direction against the twin lever 1123 bridge 1139 causing the levers to pivot on the fulcrum of bolt L98 against pin 60A through levers L1l9 and bridge 137 whereupon the levers Ll19 repeat the action brought about by the key 143 with identical outcane. (shown for example only with pin 60A through levers 127 in Fig 127.) Bolt 18 returns to load upon release of handle and action of spring within sleeve 30. Rotation check. 1115 is fixed upon shaft L95 and with attached handle will return to the neutral position (bolt 18 in load) by the action of spring 66 between lock casement and lug L135 or spool L79 as shown in Fig 125., Fig 127. and Fig 128.

Latch 5C is controlled internally/externally on a doorway opening by handles 19/19A with the description applied to lock C5 internal control consistent, and required mechanism identical as shown in Fig 125. and Fig 127. In order to control latch SC externally the selected handle is rotated one quarter revolution clockwise (by hand pressure) thereby turning the shaft 1126 and attached eccentric disc L128 against the twin levers 1127 bridge 137 causing the levers to pivot on the fulcrum of bolt L98 against the pin L60 through bolt L8 whereupon the pin 160 and thereby the bolt LB are pushed/unloaded into the sleeve L30. Bolt L8 returns to load by the action of the spring 66 within sleeve L30 and release of handle, and the handle is returned to neutral by the action of the spring attached between casement and spool L79 or lug L135 as shown in Fig 126.

In order to fix lock C5 and/or latch 5C to small unit 4S in a doorway opening in a 100mm. brick/block partition the mortar bed fitments 92, 96 and 97, are optionally required and are fixed in place during the formation of the doorway opening as previously described as shown in Fig 69. and Fig 71. The selected adaptor 14/14A is fixed upon the pre-set nortar bed fitments (adaptor 14 is slid downward over the lugs on fitment 96 until entered upon the upturn of fitnnt 97 and secured thereupon as shown in Fig 71.) as previously described.

Lockholder 13 with lock C5/latch 5C fixed thereupon is placed on the adaptor in alignnnt relative to the selected standard and secured thereupon by self tap screws 54 via holes 87 drilled through holder 13 into adaptor 14/14A, the selected standard is fixed in place as previously described as shown in Fig.ll Extended spreader bushes L136 as shown in Fig 127. are available if latch 5C is fixed within unit 4M and/or unit 4L. (not shown) A handle replacenEnt lock 113 shown in Fig 129. and Fig 130. is available for fixing upon selected standards of units 4S/4M/4L herein described having the latch L5A or latch 5C fixed within. Lock 113 is also available for replacing latch handles upon certain exsisting doors with a latch fixed thereupon.

In order to fix and control lock 113 upon and within a selected standard the latch handle 19/19A is renoved froni the standard, (reversal of the fixing procedure previously described) spring clips 1113 are placed into the two latch holders H14 in the holding fitment 114 prior to the two retaining pins H15 inserted via relative holes in the holders 1114 and behind the clips 1113 thus securing the clips therein. Two latch cartridges H12 with a spring 66 and a latch 1111 in either, are placed within the holders 1114, the fitment 114 is now placed against the selected standard with cartridges 1112 vertically aligned above and below the hole 1 on the standard and fixed thereupon by screws 54 into holes holes 87 in fitment H4 then brought to tighten in corresponding holes drilled into the standard. The cover 111 is pushed onto fitnnt 114 and the cover H20 is placed over the face of fitment 114 to rest against the shelf H19 on cover Hi. (secured later) Barrel receptacle 115 is pushed into fitnnt H4 until the shaft receptacle H16 enters the latch shaft lifting clips H13 clear enroute and causing the latches 1111 to retract within the cartridges 1112 and when hard against the exsisting latch shaft the latches 1111 will engage into the holes RiO by the action of the springs 66 in the cartridges 1112 and the clips 1113 will enter slots 118 in receptacle 115 and the securing screw is entered and brought to tighten securing receptacle 115 thereupon. The handle 112 is placed onto the protruding cotters 116 until against cover 1120 the key barrel 117 is entered via handle 112 into receptacle H5 with care taken to align the rotation checks 1117 first with clips Hl3 protruding via slots H8 into the receptacle 115, (the small spring 66 and t steel balls 9A are placed with.in the socket 119 and hand held therein until entered within the receptacle H5) and as the barrel H7 is pushed slowly inward and rotated anti-clockwise one quarter revolution the clips 1113 are sprung to tauprorary rest on barrel 117 by the action of the rotation checks L17. The barrel 117 is realigned to clear latches 1111 protruding via holes 1110 in receptacle 115 whereupon the barrel 117 is pushed canpletely within receptacle 115. (with the aid of key 1122) The key receptacle entry point 1121 is set within recess 2lA in the handle H2 and the clips 1113 drop/rise upon the key tumbler bars 7A over the check 17A whereupon cover Hl,cover plate H20, barrel 115, and handle H2 are secured in place, and the handle 112 is rendered izmobile by the action of the latches 1111 within the holes 1110 in receptacle 115. Key 1122 is inserted into barrel 117 via receptacle entry 1121 and rotated anti-clockwise one quarter revolution thereby turning the rotation checks Hl7 away fran latches Hil whilst simultaneously pushing the latches 1111 into the cartridges H12. Upon ccmpletion of the rotation the steel balls 9A on spring 66 in socket 119 within barrel H7 are brought directly adjacent to the latches 1111 and the holes 1110 upon receptacle 115 and with the pressure of the spring 66 within the socket 119 being greater than the canbined pressure of both springs 66 within cartridges 1112, latches Hil are contained therein. Handle 112 is now rotated clockwise one quarter revolution as shown in Fig 129. and Fig 130., and attached latch bolt L8 is unloaded within the selected latch (not shown) by actions previously described.

The key 1122 is available with locating node 1123 whereupon if inserted into barrel 117 via entry 112]. until checked against handle 112 will push bars 7A outward thereby lifting clips 1113 clear of check 17A on barrel 117 whereupon the barrel can be reoved fran within the lock H3 thereby releasing handle 112, barrel 117 and covers Hi and 1120 respectively. (not shown) In order to set the key H22 in locating node the check sleeve H26 is pushed within the ring holder H25 as shown on Fig 129. (the hole on the holder 1125 is clear for this action) The key returns to regular function by pulling the holder 1125 fran sleeve 1126 until the clip 1124 is checked within holder as shown in Fig 129. (a fob ring assists maintaining this position, not shown) In order to fix lock 113 to a latch upon an exsisting door, the selected handle is reoved frau the door, the lock H3 is fixed upon the door as previously described referring to fixing upon a selected standard, however whereby self tap screws 54 are required when fixing upon a selecetd standard, screwnails suffice upon a door. The square bar connecting both handles via the latch may require pushing further into the remaining handle or cut to suitable length prior to fixing lock H3 and the bar may require a threaded receptacle on one end relative to the securing screw 42. The lock H3 is controlled by the key H22 as previously described when fixed upon a door. (not shown) A push control latch P5 is available for fixing within selected standards of units 4S/4M/4L on doorway openings herein described with a handle replaceTent lock P21 option, and hand and/or foot control options as shown in Fig 135., Fig 136., Fig 137., Fig 138., Fig 139., Fig 140., Fig 141., Fig 142., Fig 143.

Fig 144., Fig 145., Fig 146., Fig 147. and Fig 148. (Latch PS requires fixing upon locacnolding fitmants 8/8A/l3A/13M prior to fixing -selected standards.

In order to fix latch P5 to fitnent 13A push rod fitments P1 on either end of the latch are renoved by pulling in opposite directions horizontally away fran the latch PS prior to placing the latch downward or alternatively upward into fitment l3A until latch bolt L8 is aligned with, and enters into hole 1 in the fitnent whereupon fitnents P1 are refitted by placing the push rods P2 into the receptacles PlO via slots 1 in fitment 13A as shown in Fig 135.

In order to fix latch P5 within a selected standard of a small unit 4S on a doorway opening in a timber/plasterboard partition the latch PS is placed within fitnent l3A and fixed upon the selected side of a doorway opening as previously described refering to ccxnpact lock/latch as shown in Fig 74 prior to fixing the selected standard as previously described. The handles P13 are fixed to the latch P5 by entering the threaded ends on the handle rods P13 into the receptacle P8 in the push fitments P1 via the holes 1 in the selected standard as shown Fig 135., Fig 136., Fig 137. and Fig 138.

In order to fix latch PS within a selected standard of a small unit 4S on a doorway opening on a lOOnin. brick/block wall/partition latch PS is fixed upon fitment l3A as previously described. A selected adaptor l4/l4A is pre-fixed in place on the doorway opening and the latch PS and fitment 13A are fixed to the selected adaptor l4/14A as previously described referring to the cctnpact lock CS and shown for example (latch P5 anitted) in Fig 147. and Fig 148., prior to fixing the selected standard and handles P13 to the doorway opening and latch respectively as previously described.

Fitments 8/8A/13A/13M shown in Fig 61. and Fig 63. are available if fixing the latch P5 within a selected standard of units 4S/4M/4L on doorway openings in brick/block walls/partitions and timber/plasterboard partitions of varying thickness. The description applied to fixing latch P5 within fitment 13A is consistent across the rnaining fitments 8/8A/13M. (not shown) In order to fix latch PS within a selected standard of a medium unit 4M on a doorway opening in a lOOnin. timber/plasterboard partition the latch is placed within fitment l3M then fixed upon selected timber of doorway opening whereby upon fixing the plasterboard, the selected standard, the handles P13 and the extension rod P12 are fixed in place as previously described referring to the latch P5 within a small unit 4S in similar situation. (not shown) In order to fix latch P5 within a selected standard of a nium unit 4M on a doorway opening in a lOOm. brick/block partition the latch is placed within fitment 8A then fixed upon a pre-set nortar bed fitment 95, (shown for example in Fig 10. with latch anitted) prior to the selected standard, the handles P13 and extension rod P12 fixed in place as previously described.

In order to fix latch PS within a selected standard of a small unit 4S in a predetermined position across the thickness of a doorway opening of lSOnm, and upward varying thickness, the latch is placed within fitment l3A then fixed upon a selected adaptor 14/14A relatively pre- fixed upon the doorway opening whereby the selected standard and handles P13 are fixed in place as previously described. (not shown) In order to fix latch P5 within a selected standard of a medium unit 4S in a predetermined position across the thickness of a doorway opening of lSOuin.

and upward varying thickness the description applied refering to small unit 4S in identical situation is consistent however extension rod P12 is added and fixed in place as previously described. (not shown) In order to fix latch P5 within a selected standard of a large unit 4L in a doorway opening of l50nin. and upward varying thickness, the latch is placed within fitment 8 then fixed upon a pre-set ncrtar bed fitment 95 prior to the the selected standard, the handles P13 and the extension rod P12 being fixed in place as previously described. (not shown) In order to control latch P5 on the interior of a doorway opening, handle P13 and attached rod P11 protruding via a hole 1 in selected standard is pushed by hand inward toward the latch wherein the push bar P15 (attached between the push rods P2 to fitment P1 via the holes P19) is brought against lever P20.

The continuing push action causes lever P20 to pivot on the fulcrum of a set bolt L98 whereupon slide lever P6 is pushed along the latch P5 in direction of arrow 80 by the pivotal action of lever P20 within slot A20 in lever P6 causing twin levers P4 to pivot on the fulcrum of a set bolt L98 whereupon the pin L60 through bolt L8 is pushed along the slot in the sleeve L30 whereby the bolt L8 retracts within sleeve L30 canpressing spring 66 therein enroute.

(slot A6 in slide lever P6 permits this action over the sleeve L30) The push rods P2 on fitment P1 are simultaneously pushed within the sleeves PlO above and below the latch upon cczTmencement of the handle P13 push, ccmpressing the springs 66 therein enroute and prczloting good handle P13/f itment P1/bar P15 to lever alignment as shown in Fig 137. Upon releasing handle P13 (by hand) the bolt L8 returns to load position and the handle is returned ready for use by the deccinpressing action of the springs 66 within sleeves L30 and PlO respectively and levers P4/P6/P20 are returned to neutral as shown in Fig 135.

In order to control the latch P5 on the exterior of a doorway opening, handle P13 and rod P11 are pushed in direction of arrow 80 placing the offset push bar P16 against the lever P3. The continuing push action on lever P3 causes the attached pull lever P9 to pivot on a set bolt L98 thereby pulling the rod P18 against the twin levers P4 causing the levers to pivot on the fulcrum of a set bolt L98 whereupon the pin L60 through bolt L8 is pushed along the slot in sleeve L30 retracting the bolt L8 with.in the sleeve whilst cctnpressing the spring 66 therein enroute. Release of handle P13 returns bolt L8 to load and renders the handle ready for use, levers P3/P4/P9 return to neutral by the deccxnpressing action of springs 66, simultaneous rod P2 action is consistent in praoting good alignment and bar P16 is attached as previously described referring tointerior handle control and bar P15 respectively as shown in Fig 135., Fig 136., Fig 138. and Fig 139.

In order to control latch PS on the interior/exterior of a doorway opening by foot pedals F6 the latch P5 is fixed within holding fitment 8/8A/13A/l3M and therein fixed upon a doorway opening as previously described prior to fixing clips F8 and clips F9 on the top and bottaui edges of selected fitment as shown in Fig 142. and for example on fitment l3A in Fig 143., Fig 147. and Fig 148.

Clips F8/F9 are identically fixed upon selected holding fitment by placing over top and bottan edge of fitment then pushing firmly thereupon until the flat right angle face of the clip rests upon/against the latch P5 with care taken to fix clips F9 upon the bottc*n edge of selected fitment. Self tap screws are available and fixed through the holes 87 on the clip via relative holes drilled upon the fitment as shown in Fig 143. and Fig 148. Internediate levers Fl are fixed upon either end of latch PS by fulcrum rods L15 through levers Fl into clips F9 with the flat, shaped end of levers Fl resting against fitment P1. (handles P13 are optionally fixed as shown in Fig 146.) Fbot control lever F2 is fixed upon fitment F3 by placing a rod Ll5 into the mid hole of the optional five holes F7 in the lever F2 prior to placing bushes FlO over either end of rod Ll5 protruding through lever F2. The lever F2 is inserted into slot Fl5 on fitment F3 and secured thereupon by screws 54 via relative holes drilled upon fitment into bushes FlO as shown in Fig 144.

(fitinent F3 is available in optional outlined shape identical with that of fitments 8/8A/13A/13M and fixed upon a selected doorway opening as previously described referring to fitments 8/8A/l3A/13M and fixing description applied to lever F2 upon fitment F3 is consistent across optional fitments, not shown) Push bar F4 and pedal receptacle F5 are identically fixed upon top and bottcxn ends of lever F2 respectively by placing relevant ends of lever F2 within the bar F4 and receptacle F5 until holes therein align and set screws 42 placed within holes and brought to tighten thereupon as shown in Fig 143., Fig 144.

and Fig 145. Fitment F3 and attached lever F2 are fixed upon selected doorway opening as previously described and lever F2 is set vertical with attached bar F4 (top end) central between levers Fl and receptacle F5 (bottan end) central above selected unit secure fitment 86 as shown for example in Fig 141., Fig 143., Fig 144., Fig 145., Fig 146., Fig 147. and Fig 148. A lever guide F14 is optionally available and and fixed upon the selected opening/adaptor/stud timber by for example screws through guide into fitinent or opening as shown for example attached to adaptor 14A in Fig 148. A selected standard is now fixed in place as previously described and foot pedals F6 fixed thereupon.

Foot pedals F6 are available in three optional lengths (germane with selected standard of units 4S/4M/4L) with four adjustment grooves Fil, a surclip L31, a dust cover Fl2 and spring 66 on each. Cover F12 and spring 66 are slid into place on the selected pedal F6 prior to the grooved end with suitably attached surclip L31 being inserted into the hole Fl3 in receptacle F5 and lever F2 via a hole 1 drilled upon the selected standard until the surclip L31 is against the receptacle F5 and the spring 66 against the selected standard. Pedals F6 are fixed via either side of selected standard (interior/exterior) with the description of fixing and length of the interior pedal F6 consistent across the selected units 4S/4M/4L as shown in Fig 141. and for example within a small unit 4S standard in Fig 145. Adjustments are available upon selection of holes F7 and groves Fli in the lever F2 and pedal F6 respectively.

In order to unload the latch bolt L8 within a selected standard of the units 4S/4M/4L by foot pedal F6 fran the interior of a doorway opening the pedal is pushed by foot toward the selected standard whereupon the lever F2 attached to the pedal F6 via receptacle F5 is pivoted in the direction of arrow 80 on the fulcrum of the rod L15 until the bar F4 is against the interior lever Fl.

The continuing push action in the direction of arrow 80 causes lever Fl to pivot on the fulcrum of rod Ll5 attached to clip F9 thereby pushing fitment P1 inward on the latch PS whereupon the bolt L8 is pulled within sleeve L30 (previously described referring to handles P13) as shown in Fig 141.

In order to unload latch bolt L8 within a selected standard of units 4S/4M/4L by foot pedal F6 on the exterior of a doorway opening the description applied to pedal F6 on interior is consistent in opposite direction however selected standards of units 4M/4L will require relative length pedals F6. (not shown) The pedals F6 (interior/exterior) and levers Fl and F2 respectively return to neutral position and latch bolt L8 returns to load by the decanpressing action of springs 66 within/thereupon as shown for example in Fig 135. and Fig 145.

Push control lock P21 shown in Fig 140. is available for fixing upon selected standards of units 4S/4M/4L on doorway openings herein described.

In order to fix lock P21 upon a selected standard of units 4S/4M/4L on doorway openings herein described the handles P13 are renved f ran the latch PS by unscrewing, the selected standard is renoved f ran over the latch as previously described. The lock is placed upon the standard with the locating di.inple P29 and the push check P28 central within the hole 1 in the standard. The lock P21 is held vertical whilst four set screws 42 are brought to tighten via relative holes drilled upon the standard onto the threaded receptacles 42P upon the lock as shown in Fig 140, The selected standard and remaining handle P13 are again fixed in place as previously described whereupon the dimple P29 is set upon the threaded receptacle in fitment P1 on the latch PS. Dust cover P31 and spring 66 are placed over the shaft P11 on the handle P13 prior to fixing both by the threaded end of shaft P11 being screwed within the threaded receptacle on the push check P28 as shown in Fig 140. This description refers to lock P21 fixing on selected small unit 4S standards and is consistent to the selected standards of units 4M/4L however push check P28 shown in Fig 140. is available in lengths germane to units 4M/4L when fixed thereupon. (not shown) In order to control the lock P21 the handle P13/shaft P11 are pushed inward toward the lock P21 whereby the push check P28 and the dimple P29 thereupon push the fitment P1 within the lock P21 pulling the bolt L8 within sleeve L30 as previously described. Upon release of the handle P13 the bolt L8 and the handle P13 are returned to neutral by the decanpressing action of springs 66.

Ib prevent handle P13 pushing inward and thereby prevent bolt L8 retraction into sleeve L30, key L43 is inserted via receptacle 24 into barrel P42 pushing the twin rods P26 into the shaped receptacles P24. The key L43 is rotated one quarter revolution anti-clockwise thereby turning the eccentric disc P23 in the same direction C by the action of rods P26 in the receptacles P24) on the fulcrum of rod P33 on back plate P32. The levers P22 shaped on both sides of the disc P23 are pivoted on the fulcrum of the rods L15 on the back plate P32 over the rebated edges P27 of the bar P28 thereby preventing the bar P28 frau inward novement aided by the surclips L31 on the rods L15 through levers P22.

The key is now rotated clockwise one quarter revolution whereby the rods P26 return to neutral along the shaped receptacles P24 leaving the disc P23 and thereby the levers P22 stationary over the bar P28. In this position the key L43 is renoved via receptacle 24 fran the barrel P42 and the rods P26 return within the barrel. The handle P13 is now secured stationary.

In order to release the handle P13 and thereby return levers P22 to neutral the key L.43 is inserted via the receptacle 24 into the barrel P42 and rotated one quarter revolution clockwise thereby turning the disc P23 identically, with the levers L22 returning to neutral around the disc P23 by the deccmpressing action of the springs 66 attached thereupon as shown in Fig 140. The key is now rotated anti-clockwise one quarter revolution whereby the rods P26 return to neutral along the receptacles P24, the key is renoved and the rods P26 are returned within the barrel. The actions previously described to secure/release bolt L8 in latch P5 with lock P21 are relevant to foot control action within and upon the units 4S/4M/4L described herein.

Ball latch Bi is available for fixing within selected standards of the units 4S/4M/4L upon/within the holding fitments 8/8A/l3A/13M herein described as shown for example on fitinent 13A in Fig 149.

In order to fix latch Bi upon selected fitment 8/8A/13A/13M clip B4 is placed over the top/bottczn edge of selected fitment by spreading slightly prior to releasing onto fitment, the circular part of clip B4 is now in alignment with hole 1 upon fitment. The ball latch Bi is entered into clip B4 but not yet through hole 1 prior to sliding the spring clip B3 between clip B4 and fitment 13A and upon the holes 1 on the clip and fitment aligning the latch Bi is secured in place protruding via hole 1 as shown in Fig 149. (set bolt 42 is optionally available to fixing into hole 86) Fitments 8/8A/13A/13M with ball latch Bl thereupon are fixed within selected standards of units 4S/4M/4L on doorway openings as previously described.

The latch Bi is brought to load/unload by the opening/closing action of the selected door 10 forcing the ball inward against the spring clip B3 whereupon the decctnpressing action of the shaped end of clip B3 on the concave end B5 of the latch Bi returns ball to load as shown with door 10 anitted in Fig 149.

Stays Sl/S2/S3 are available for fixing in proximity to the handles l9/19A herein described whereby when a selected handle is rotated to release bolt LB fran load the handle and thereby the bolt are held stationary in the unload position as shown for example with handle l9A and bolt LB anitted in Fig 131., Fig 132., Fig 133. and Fig 134.

Stays S1/S2/S3 are fixed within/upon bushes and covers germane to the selected stay and fixed in place prior to fixing selected handle. Handle shaft bush S5 with attached stay Si and back plate S13 are fixed in place over shaft L24 and bush L90 thereupon with care taken that stay recess S4 on bush L90 is facing downward with bolt L8 in load position. Set bolts L86 are fixed in place, the cover 58 (replaces cover L132) and handle 19 are fixed in place as previously described. Upon rotating handle anti-clockwise thereby withdrawing bolt LB fran load the recess L90 is brought to align with the end of stay Sl whereupon the stay is pushed inward along the shaped groove in bush S5 and plate S13 to insert into recess S4 canpressing springs 66 enroute. With the deccxnpressing pressure of spring 66 in sleeve L30 greater than ccnibined pressure of the two springs in bush S5 the stay Sl, handle 19, and bolt L8 are held stationary.

In order to release stay Si and thereby handle 19 and bolt L8, the handle is turned slightly anti-clockwise thereby removing pressure fran stay whereupon the decanpressing pressure of the t springs 66 in bush S5 return stay Si to neutral as shown in Fig 120. and Fig 131.

Stay Si within bush S7 is available for fixing over spreader bush L96 upon a selected standard of units 4S/4M/4L. Prior to fixing handle 19/19A the back plate S13, the bush S7 with stay Si thereupon, are placed upon/over bush L96 and held horizontal prior to drilling holes (relative to holes 87 in plate S13 and bush S7) into the selected standard and secured thereupon by screws 54 via holes 87 as shown in Fig 132. The cover S9 is placed over the secured bush and the selected handle is fixed thereupon as previously described. The bolt L8, and handle l9/19A are held stationary by stay Si into recess S4 (in bush L96) as previously described.

Stay S2 within bush S6 is available for fixing upon/over bush L90/shaft L24.

Stay S2 is fixed upon bush S6 via shaped groove therein. The bush S6, back plate S13 and cover Sb are fixed in place and render bolt L8/handle 19/19A stationary as previously described referring to stay Si/bush 55 however stay S2 is unaided by springs 66 therefore upon turning selected handle slightly anti-clockwise the stay is pushed by hand, until clear of recess S4 as shown in Fig 133. thereby returning handle 19/l9A to neutral and bolt L8 to load.

Stay S3 within bush Sli is available for fixing (with screws 54) upon/over bush L96. Stay S3 is fixed upon bush Sil via shaped groove therein. Bush Sll, back plate S13, and cover Sl2 are fixed in place and render bolt L8/selected handle 19/19A stationary/on load/neutral respectively as shown in Fig 134.

and previously described referring to stay S2/bush S6/bush L90 and screws 54.

An electrical control mechanism E18 is available for fixing upon locks L4 and L5 respectively herein described. The mechanism E18 is attached to and driven by an electric motor example El matching in voltage and power rating to the electricity supply in the location wherein a selected unit 4S/4M/4L is fixed as shown in Fig 150., Fig 151., Fig 152., Fig 153. and Fig 154. The electrical supply to motor El is connected via motor Di (previously described referring to open/return to close mechanism) and controlled for example by standard manufactured key or number coded, or rte control electrical on/off switch whereupon activation unloads bolts L7/L8 and open/close mechanism. (not shown) The electrical supply to motor El and motor Dl is required via alternating time delay switches (not reqiured if motor Dl is not used) whereby in order to open a selected door 10 the activation of motor Dl is delayed until bolts L7/L8 are unloaded therefore the door closing action of motor Dl precedes activation of motor El in order to load bolts L7. The rotation cycle of motor Dl is one half revolution (ninety degrees) per activation. t'btor El requires rotation direction reversal upon completion of bolt unloading cycle whereupon completion of the door closing action of motor Dl the motor El is re-activated in the opposite rotational direction in order to load bolts L7. (not shown) In order to fix mechanism unit El8 to lock L4 within a selected unit 4S/4M/4L standard the unit El8 is placed with the holes ES over the barrel L29 and the disc L37 protruding fran the lock L4 with care taken to simultaneously guide the keyed spool E3 onto the shaft L24 and over disc L37 and the clamp spool E4 onto the barrel L29. (the set bolts 42 on spool E4 are loosened prior to this action) The set bolts on spool E4 are now brought to tighten and brackets E20 and E2l are fixed in place top and bottom respectively by for example self tap screws 54 via unit E18 into lock L4 as shown in Fig 150., Fig 151., Fig 152. and Fig 153.

In order to activate mechanism unit El8 and thereby unload/load bolts L7 the motor El is energised via selected switch control to rotate clockwise thereby rotating the shaft E2 and attached ribbed spool E6 identically. Drive belt E7 transfers the rotation action f ran spool E6 to spool E8 on the screwed drive shaft E9 and the rotation action sends the drive lever ElO upward whereupon the drive rod Ell engages with the keyed spool E3 causing the spool E3 to rotate one quarter revolution anti-clockwise thereby releasing bolt L8 from load. This action also brings the bar E12 attached upon spool E3 against the slide lever El3 causing lever E13 to slide downward within the recess El4 pulling the attached clamp spool E4 enroute thereby turning the barrel L29 anti-clockwise releasing bolts L7 via quick release mechanism as previously described. The upward action of drive lever ElO within the drive lever recess E15 simultaneously pushes the spacer lever E16 against the spring lever El7 and the continuing upward movement sends the lever E17 against the rib E23 on the spool E4 assisting turning action thereof. The action of the springs 66 in the lock L4 and attached to the spools E3 and E4 return the barrel L29 and the shaft L24 and therefore the spools to neutral as shown in Fig 150., Fig 151., Fig 152., Fig 153. and Fig 154. The electrical supply to unit El8 is now suspended and the motor Dl is energised via the time delay switch thereby the open/return to close mechanism is activated opening the selected door as previously described and upon ccinpletion of the opening action the electrical supply is again suspended. In order to close the selected door and load the lock bolts L7 thereupon the motor Dl is energised via the selected control switch and the door 10 is returned to the closed position by the action of the motor Dl on the open/return to close mechanism as previously described. The motor El is energised via the time delay switch in the oppsite rotational direction relative to the bolts L7 unloading action.

In order to load the bolts L7 the drive shaft E9 is rotated anti-clockwise by the action of the motor El connected thereupon as previously described. The rotation action of the drive shaft E9 sends the lever ElO downward whereupon the rod Eli engages with the spool E3 causing the spool E3 to rotate clockwise one quarter revolution thereby identically rotating the shaft L24 returning the bolts L7 to load position as previously described. The spool E3 returns to neutral by the action of springs 66 in the lock IA and unit E18. The levers El6 and E17 are returned to neutral by the action of the spring 66 within the drive lever recess E15 and the spring clip E19 within the lever E17. The drive shaft is held secure upon the unit E18 by three small bushed brackets E24 and the springs 66 are anchored to small brackets E25 and a guide E26 as shown in Fig 150., Fig 151., Fig 152., Fig 153. and Fig 154. Upon canpletion of the closing and bolt loading action the electrical supply is suspended and the rotation direction of the motor El is returned to clockwise. (not shown) The mechanism unit E18 is available for fixing upon a single lock L5 whereby the quick release mechanism is excluded therefore the fitments on unit El8 relative to controlling the quick release mechanism are superfluous.

In order to fix unit El8 upon lock L5 the keyed spool E3 is placed over the shaft L24 and bush 48. Brackets E22 (shown hatched in Fig 150.) are fixed to unit E18 and lock L5 by for example self tap screws 54. (not shown) In order to control the lock L5 via the electrical mechanism unit E18, motors El and Di, the description thereof applied to unit El8 fixed upon lock L4 is consistent. Upon fixing unit El8 to lock L4 or L5 the selected standard, the receptacle L68 and the selected handle 19/l9A are fixed in place as previously described.

Claims

1. A unit with a varied specific profile cnprising ts standards a

lintel and an optional step/tread, connected within a selected doorway opening in order to enccxnpass, support arid check control an interior standard manufactured door with means to connect the door to the unit with pre-selected directional opening/closing door swing options.

2. A unit as claimed in Claim 1 whereby means are available to connect an exterior standard manufactured door with pre-selec ted directional opening/closing door swing options.

3. A unit as claimed in Claim 1 and Claim 2 whereby means are provided in profile in order to contain selected locks and/or latches.

4. A unit as claimed in Claim 1 and Claim 2 whereby means are provided in profile in order to contain lock and/or latch receptacles.

5. A unit as claimed in Claim 1 and Claim 3 whereby means are provided in profile to check the door swing in order to align a selected door edge with lock and/or latch receptacles thereupon with locks and/or latches contained within the unit.

6. A unit as claimed in Claim 2 and Claim 3 whereby means are provided to align selected door edge with lock/latch receptacles thereupon with locks and/or latches contained within the unit.

7. A unit as claimed in Claim 1 and Claim 4 whereby means are provided in profile to check the door swing in order to align a selected door edge with locks and/or latches thereupon with lock and/or latch receptacles contained within the unit.

8. A unit as claimed in Claim 2 and Claim 4 whereby means are provided in profile to align selected door edge with locks and/or latches thereupon with lock/latch receptacles contained within the unit.

9. A unit as claimed in preceeding claims whereby profile variation thereof provide option in order to connect a selected unit within a range of doorway openings currently under regular construction in industrial, cxmnercial and domestic building rks.

10. A unit as claimed in preceeding claims whereby means are provided in order to connect a selected unit within doorway openings in exsisting industrial, ccimercia1 and dc*nestic buildings.

11. A unit as claimed in preceeding claims whereby means are provided to contain within and upon selected units the wherewithal to accept postal delivery, regularly referred to as letter-box.

12. A unit as claimed in preceeding claims whereby means are provided to contain within selected units a mechanism to assist the return to close action of a selected door attached thereupon.

13. A unit as claimed in preceeding claims whereby means are provided to contain within selected units an electrically driven mechanism in order to open and close in alignment a selected door.

14. A unit as claimed in Claim 4 and preceeding claims whereby means are provided to contain within selected units an eletrically driven mechanism in order to operate certain locks contained within unit.

15. A unit as claimed in Claim 9 and Claim 10 whereby means are provided within the unit in order to securely attach a selected unit upon the chosen doorway opening.

16. A unit as claimed in Claim 15 and preceeding claims whereby means are provided by way of attachments germane in profile in order to adjust a selected unit within a chosen doorway opening.