1 IMPROVEMENTS IN LOCKS Summary According to one aspect of the invention, there is a catch plate for a lock having a lock body mountable to a moveable wing supported relative to an opening defined in part by an element towards which the wing displaces when closing, the catch plate comprising: an attachable portion for attachment to the element, the attachable portion (i) including an engageable portion adapted for operative engagement by an engaging member of the lock body so as to restrain the lock against displacement in an opening direction and (ii) being attachable to the element by fasteners operatively displaced a first pre-determined distance rearwardly from the engageable portion; and a cover for attachment to the attachable portion so that the attachable portion is operatively located between the cover and the element, the cover being adapted for attachment to the element by fasteners operatively displaced a pre-determined second distance rearwardly from the engageable portion, wherein the second distance is greater than the first distance. In some embodiments of the invention the engageable portion is substantially overlapped by a cover. The elements relating to the various aspects of the invention claimed within are identified within the specification as follows: (where unless the context requires otherwise) "Locks" or variations such as "lock" will be understood to include 2 complete locks for and improvements in locks for wings that are transportable into other devices without being limited to the complete locks described herein. * "Comprise" or variations such as "comprises" or "comprising" will be understood to imply the inclusion of a stated integer or group of integers but not 5 the exclusion of any other integer or group of integers, * Positional prepositions such as "rear" and "forward" are used to assist in description of the preferred embodiments and with reference to the accompanying drawings and have in general, no absolute significance, a "Overlap" and derivations such as "overlaps" implies at least in-part, 10 occupying a same plane as. * "Meshes with" implies being engaged with - for example, an angularly displaceable shaft meshing with a recess in an angularly displaceable pinion so as to angularly displace together; this not precluding the shaft displacing longitudinally to and from the recess, 15 * "Extent" will be understood to embrace area, form and shape. * Headings are included for convenience only and not to affect on interpretation. a "Preferably" or variations such as "prefer" does not imply that the form of an integer is restricted to that referred to as preferred, but implies adequate and if 20 need be, able to adequately perform a function required by the invention * "Alternative" or variations such as alternatively does not imply that the form of an integer is less preferred but simply implies adequate and if need be, able to adequately perform a function required by the invention. * 'Wing" or variations such as "wings" includes complete wings and 25 improvements in wings without being limited to those described herein and more particularly, wings embraces wings configured as "doors", "windows", "shutters", "screens", * "Structure" or variations such as "structures" implies a man-made fabrication consisting of one or more members and embraces complete 30 structures and improvements in structures without being limited to the forms described herein, structures more particularly embracing wings and wings configured as doors or window screens, * "Member" is an identifiable entity having material form that may include one or more identifiable components, 3 * "Material" includes elements, alloys, plastics and other substances. " "Aperture" and "recess" embrace a hole that extends from a surface while "aperture" in some contexts more particularly implies a hole that extends between surfaces. 5 0 "Furniture" includes door furniture that includes a "handle assembly" that includes a handle supported by a base that together in one form comprise a disengaging handle supported by a back-plate or base; 0 "Handle" includes a knob and lever; * "Disengaging Handle" includes a lever or knob that is hand operable to 10 cause an engaging member to become disengaged and/or retracted * "Base" includes a Rose that may include a surface mounted member having a recess on the underside and it includes a back plate, * "Back Plate" (or "back-plate") includes a surface mounted box-like member having a recess on the underside. 15 * "Engaging Member" is a member displaceable to and from an operative configuration, a configuration the engaging member assumes when participating in engagement with an engageable means and a configuration where the engaging member is at least substantially fully displaced; within this specification, and for ease of description with respect to the engaging member, fully displaced 20 embraces operative. * "Latching" implies displacement of an "engaging member" into engagement with an "engageable member" under the action of biasing means. "To engage" implies displacement of an "engaging member" into engagement with an "engageable member". 25 * "To disengage" means to withdraw from engagement or withdrawal from the operative disposition to an inoperative disposition removed from the said engagement. Within this specification, and for ease of description, with respect to the engaging members, retracted embraces inoperative, * "Latch-Bolt" or "latch bolt" is an outwardly biased bolt capable of executing 30 (or participating in) latching and includes bolts having a leading end that is chamfered or otherwise profiled on one or both sides. * "Auxiliary bolt" is a plunger that is operably associated with a latch bolt. a "Unlatching" means withdrawal of the engaging member from engagement, * "Locking" means the act of configuring the lock to restrain it from 4 being disengaged and in some forms of locks employing deadlocking slides, it means restraining the deadlocking slide to restrain the bolt from being inwardly displaced in response to operation of the disengaging lever. * "French Door" means a door including a frame and a glass in-fill. 5 a "Screen door" means a door including a frame and an insect restraining in-fill such as fiberglass mesh, woven mesh or perforated metal mesh; * "Lock Body" includes an engaging member and a lock casing and an " Australian conventional security door lock includes a lock body that is able to fit within an industry-standard door preparation having a recess formed by a 10 channel having a depth 40 MM, a closing edge slotted aperture of length 160 MM and a width 16 MM. * "Mortise Lock" means a lock including a lock body, a strike plate, a pair of handle assemblies and a cylinder where the lock body is configured to be fitted within the frame of the structure. 15 * "Single cylinder" means a substantially conventional lock cylinder comprising a separate sub-assembly that includes a key operable barrel within a cylinder housing. * "Double-Cylinder" comprises a substantially conventional double lock cylinder being a separate sub-assembly that includes opposed coaxially 20 supported barrels each operably connected to the same angularly displaceable "first cam" having a "first cam arm" characterized by a "free end" that extends radially to a "peripheral surface" defined in part by a common radial distance from the first cam pivotal axis and where in a conventional double cylinder this radial distance is 15.0 MM. 25 & "Cross-Sectional View" in relation to figures should be interpreted as an orthogonal cross-sectional view defined by a plain orthogonal to the longitudinal axs of the member in consideration. * Patent Specification implies inclusion of: a Body including a Title, a Description of Preferred Embodiment/s, an Abstract and a Summary of the 30 Invention] and a specification will include Claims, Unless the context requires otherwise, any prior publications and usage referred to herein, is not an assertion that any of this material forms part of the common general knowledge in the art in any other country at the priority date of any 5 claim herein (or the priority date of any future claim derived at least in part from this specification). The integers described within include those related to the various aspects of the invention claimed within and they include those related to the various aspects of 5 other inventions to be claimed in future divisional applications and continuations in part. Where an integer is attributed with attributes different from those attributed in an earlier application on which this application relies for priority, the integer will be considered to be the same integer in a different form; where there is actual 10 inconsistency, the latest description will prevail. The inventions described within derive, at least in part, from those described in AU 51891/01 which is hereby included in its entirety in this application by reference. Description of the Drawings 15 Notwithstanding any other forms that may fall within its scope, one preferred form of the invention will now be described by way of example only with reference to the accompanying drawings in which: Figure 1 (being a copy of Fig 15 of AU2001 51891) is a perspective, exploded view of the catch plate, when viewed from the interior and rear, 20 Figure 2 is a side view of a lock and catch plate where the interior lock casing and screws attaching the narrow catch plate are separated by 13 MM Figure 3 is a side view of a lock and catch plate where the interior lock casing and screws attaching the wide catch plate are separated by 22 MM Figure 4 is an isometric view of a cover member attachable to the narrow 25 catch plate, Figure 5 is a side view of the converted catch plate of Fig 4, Figure 6 is an isometric view of a partly exploded narrow catch plate and a side view of the assembled catch plate. Figure 7 is a partly exploded isometric view of the catch plate of Fig 6 with an 30 alternative cover to convert the catch plate to a wide catch plate, and a is a side view of the converted catch plate.
Detailed Description of Embodiments Consistent with Concepts of the Inventions A catch plate 9, referencing Fig 1, includes an engageable portion attached relative to an attachable portion that in application is attached relative to an 5 element 10 that defines in-part the opening adjacent to which a wing 2 is attached and towards which the wing displaces when closing; the engageable portion becoming engaged with an engaging member supported in a lock body supported relative to a leading edge of the wing (when the wing is closed) to restrain the wing against displacing in an opening direction. 10 In some forms, the engageable portion comprises a forward wall 101 disposed towards the front edge of the attachable portion that in some forms comprises an interior assembly; this engageable portion having a least one recess having a respective opening 102 to provide passage for a hooked portion of a respective engaging member (that may comprise an engaging arm) to enable the 15 respective hooked portion to enter and inhabit the recess 103; in some forms there are multiple engaging arms having corresponding recesses. In some forms, the catch plate 9 comprises a vertically elongated catch casing 104 which supports a forward wall comprising a separate member that may comprise a separate channel 105 that in some forms is restrained relative to the 20 casing by two spaced springs 173 located between the catch casing and channel. In some forms, there are two spaced vertically elongated apertures 106 in the channel through which headed fasteners preferably comprising screws 107 have passage to attach the channel to the catch casing 104 by engaging in threaded apertures 108 in the catch casing. Screws 107 are adjustable in and out to selectively set the distance 25 between the engageable portion that may comprise a channel and the attachable portion that may comprise a catch casing as is required and to accommodate small deviations in distance between the wing 2 and element 10. In some forms the catch casing 104 can be attached to the element 10 in two different ways: 30 fasteners that may comprise screws screws 109, including their heads are passed through apertures 110 in the channel 105 to have passage through vertically elongated first fixing apertures 111 in the catch casing 104 to become fastened to the element 10 - the catch plate 104 being vertically adjustable (relative to the fasteners 109) because of the elongation of the fixing recesses; 7 alternatively, fasteners that may comprise screws 112 may be passed from the outer face of the catch casing through vertically elongated second fixing apertures 113 in the catch casing 104 to become fastened to element 10 - the catch plate again being vertically adjustable because of the elongation of the fixing 5 recesses. In some forms, after fixing, plugs 114 are inserted within the second fixing apertures 113. In some forms, each second fixing aperture 113 is intersected by a respective transverse aperture 115 commencing at the front edge of the catch casing and supporting a grub screw 116 which threadedly engage the walls of the 10 respective recesses 115. After the insertion of each plug 114, the respective grub screw is tightened to bite into the plug 114 to retain the plug 114 in the second fixing recess 113 to render the screw 112 inaccessible, In some forms, at least one end of the forward wall 101 has an overhanging end shoulder 117 that overhangs a respective recess 103; this end shoulder 117 15 comprising a canter-levered shoulder behind which the hooked portions 23 of the engaging member can locate so that the hooked portion cannot be withdrawn horizontally from behind the shoulder 117 - this action corresponding to attempted forced entry. In some forms, the channel comprises an elongated steel channel or a single 20 zinc diecast member. Preferably the catch casing 104 comprises a single casting to provide increased strength. Preferably the casting comprises a substantially elongated first plate-like portion 118 integrally attached at right angles to another substantially second elongated plate-like portion 119 (corresponding in this embodiment to the base of the casing), each providing for the other a web-like 25 portion to resist bending of the catch casing, In some forms, further adjustment is provided through elongation of the apertures 106 whereby the forward wall 101 is vertically adjustable up and down from a nominal central position relative to the catch casing. In some forms and where there are opposed counteracting engaging arms, as the engaging members move towards (each other and) the fully extended 30 positions one of them may make contact with a shoulder 117 first: this action urging the forward wall 101 towards a vertically aligned configuration relative to the engaging members to ensure correct engagement by each hooked portions 23. The springs 173 then maintain the channel relative to the catch casing. As described above, screws 107 are adjustable in and out to selectively set 35 the distance between the engageable portion that may comprise a channel and the 8 attachable portion that may comprise a catch casing as is required to accommodate small deviations in distance between the wing 2 and element 10 (to facilitate proper engagement) but some applications require the engageable portion to be separated from the attachable portion by a larger distance than required by other applications 5 (and larger with respect to small deviations in distance): in some territories there are common (industry standard) applications referencing Fig 2 and 3corresponding to the fixing screws 112 being displaced from the outer edge of the engageable portion (when located relative to the attachable portion in a nominal configuration) by W4 MM (as in a narrow catch plate) and W5 MM (as in a wide catch plate) respectively. 10 In Australia for example, there are industry standard applications referencing Fig 2 and 17corresponding to the fixing screws 112 being displaced from the outer edge of the engageable portion by 13 MM (as in a narrow catch plate) and 22 MM (as in a wide catch plate) respectively, Some of the inventions within provide a means of converting the narrow 15 catch plate to the wider catch plate: In a first form of the invention referencing Fig 4 and 5, the attachable member is attached to the element 10 by means of a spacer member that in some forms includes a vertically elongated second fixing apertures 203 that is substantially identical to those identified as1 13; apertures 203 being rearwardly offset (by a 20 distance substantially [W5-W4) from those identified as 113 but still configured to receive and be fastened by a screw 112 and to receive plug 114. Additionally the spacer member includes a boss 205 configured to be received in and to mate in an apertures 113 of the narrow catch plate and to be fastened there by the application of a fastener 116- In some forms there are a pair of spacer members one for each of 25 a pair of apertures 113 In a particular form, the spacers are within a single cover 200 having an elongated plate-like portion 201 that overlaps the attachable portion and in a particular form the cover 200 abuts the elongated plate-like portion 119 and in a particular form it includes a return wall 202 to envelop the attachable portion. In this 30 form, extending from the surface of 201 are the vertically elongated second fixing apertures 203 that are substantially identical to those identified asl 13, the apertures 203 being rearwardly offset from those identified as 113 but still configured to receive and be fastened by a screw 112 and still configured to receive plugs 114. The cover 200 additionally includes bosses 205 configured to be received in and to mate in 9 apertures 113 of the narrow catch plate and to be fastened there by the application of fasteners 116. In another form, a cover 210 replaces the plugs 114 referencing Fig 1, this comprising an elongated plate-like portion 211 that abuts the elongated plate-like 5 portion 119. Extending from the surface of 201 are elongated plugs portions 114A. The cover 210 is fastened by the application of fasteners 116 that engage the plug portions 114A. Importantly, the width W3 of the cover 210 referencing Fig 7, is substantially the same as the width W5 of the conventional wide catch plate. In this embodiment, the screws 107A (associated with the cover 210) have an increased 10 length [increased from the length of screws 107 by a distance substantially [W5 W4). In some such forms, the screws 107 are replaced by screws 107A.