US2916245A - Adjustable scaffold bracket - Google Patents

Adjustable scaffold bracket Download PDF

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US2916245A
US2916245A US546918A US54691855A US2916245A US 2916245 A US2916245 A US 2916245A US 546918 A US546918 A US 546918A US 54691855 A US54691855 A US 54691855A US 2916245 A US2916245 A US 2916245A
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construction
scaffolding
concrete
shaped
members
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Chester I Williams
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/06—Consoles; Brackets
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/06—Consoles; Brackets
    • E04G5/062—Consoles; Brackets specially adapted for attachment to building walls

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  • This invention relates to scaliolding construction, and more particularly relates to a scaffolding construction for use in the construction of straight and battered concrete walls for dams and the like, and used in conjunction with conventional concrete form construction.
  • a scafiolding construction and brackets therefor which may be readily erected in place on any anchors or anchoring means previously used for the erection of the forms and which may be readily dismantled as the necessary cleaning and patching has been completed to move up or down to the next position where the scafiolding is erected. It is also desirable to have a scalfolding bracket construction which can be used either mounted directly on the concrete forms or attached directly to the precast wall, and which are also adapted for use either against the vertical wall to which they are attached or to a battered wall such as along the spillway of a dam or the like.
  • Another object of the invention is to provide an improved and simplified adjustable scaffold bracket which may be erected in a minimum of time directly to the anchors for the forms as the forms are shifted and/or which may be assembled directly to the concrete forms, and may be moved directly with the forms as they are shifted and erected in place for pouring the next lift.
  • Another object of the invention is to provide an improved scatlold bracket which may be attached to an anchoring means with a she-bolt construction.
  • Another object of the invention is to provide a scaffold bracket construction which may be assembled directly to the waler constructions of a concrete form ice whether the concrete form is positioned vertically or at an angle for the construction of battered walls so that the scaflolding is level in either position.
  • Another object of the invention is to provide an improved scaifolding construction which may be mounted directly on the forms and moved therewith from one position to another in the pouring of the lifts.
  • Still another object of the invention is to provide a scaffolding construction which may be moved from one position to another in the assembled relationship for mounting directly on the anchors used in the erection of the concrete forms.
  • a still further object of the invention is to provide a simple method of erecting scaifolding construction directly to various types of anchoring means precast in the concrete construction or directly to structural members of a concrete form construction.
  • a simple scafiolding construction comprising triangular-shaped scaffold brackets in which the hypotenuse or diagonal brace member thereof is adjustable so that the scaffold brackets may be assembled directly to a vertical wall, or the hypotenuse or diagonal brace member telescoped to adjust to the angle of batter of inclined Walls to which the scaffolding is erected either directly to the face of the wall or upon the concrete form construction.
  • This simple form of adjustable triangular-shaped scafr'old bracket also includes a railing construction which is substantially vertical whether the scalfolding construction is assembled to a vertical wall or to a battered wall construction.
  • a she-bolt construction for attaching the scaffolding construction directly to anchoring means, such as pigtail anchors, as disclosed and claimed in my copending United States applications Serial No. 183,735 filed September 8, 1950, now U.S. Patent No. 2,724,165 for Anchor for Concrete Forms; Serial No. 233,852 filed June 27, 1951 for Rod Hickey Splicer; Serial No. 494,377, filed March 15, 1955 for Support Plates for Tie Down System for Concrete Forms, and also a T-bolt construction for directly connecting the scaffold brackets to the waler members of a concrete form construction.
  • anchoring means such as pigtail anchors
  • Fig. 1 is a vertical sectional view, in side elevation, illustrating the erection of the scaffolding construction to the anchoring means for erecting the concrete form construction, and illustrating the scaffolding construction for use with the concrete form construction;
  • Fig. 2 is a view in elevation, partly in section, taken along the line 2-2 of Fig. 1 looking in the direction of the arrows;
  • Fig. 3 is a plan view illustrating the planking of the scaffolding and the scaffold brackets assembled to a 'longitudinal face of a concrete wall construction, as illustrated in Fig. 1;
  • Fig. 4 is a view in front elevation illustrating the improved scatfolding construction mounted on a concrete wall construction and used in conjunction with a concrete forrn construction;
  • Fig. 5 is a view in side elevation, partly in cross section, illustrating the scafiolding construction of Fig. 1 assembled to a concrete form construction positioned at an angle for a battered wall construction;
  • Fig. 6 is a view in side elevation, partly in cross section, illustrating the scaffolding construction of Fig. 1 assembled to the waler members of a concrete form construction, as illustrated in Fig. and used in the erection of a vertical wall.
  • Fig. 7 is a vertical sectional view similar to Fig. 1, illustrating a double scaffolding and the erection thereof on a longitudinal face of a concrete wall construction;
  • Fig. 8 is an enlarged view of a beveled washer construction used with the double scaffolding of Fig. 7 with battered concrete walls as illustrated in the dotted lines of Fig. 7.
  • a scaffold construction 10 comprises an adjustable scaffold bracket 11 and scaffolding 12 mounted on a face of a concrete wall or massive dam construction 13 and affixed to a pigtail anchor construction 14 as disclosed and claimed in my US. Patents Nos. 2,724,165 for Anchor for Concrete Forms, and 2,825,165 for Method and Apparatus for Handling Forms.
  • the scaffolding construction 10 preferably comprises a plurality of these triangularshaped adjustable scaffold brackets 11 affixed to a series of the pigtail anchors 14 as they extend across each lift of the dam construction, and which are left in the construction of each lift by a cantilever type form construction 15 in the construction of the massive concrete mass, as a wall or dam 13.
  • the cantilever type form construction 15 is similar to that as disclosed and claimed in my patent, No. 2,825,115, for Method and Apparatus for Handling Forms, and includes sheathing 16 aflixed to strongbacks 17 erected on the peripheral face of a concrete block construction 13 such as is used in dam construction.
  • a concrete block construction 13 such as is used in dam construction.
  • the relative size of the strongback is substantialty twelve inches by twelve inches and the sheathing is made up of members four inches in thickness.
  • the relative lentgh of these cantilever type forms as they are erected may range up to twenty-five or even to fifty feet in length, and the spacing between the strongbacks is usually six feet so that for use with concrete form constructions of this type, the adjustable scaffold brackets 11 are similarly spaced as the strongbacks and the scaffolding are usually comparable in length to that of the forms.
  • the concrete forms 15 are erected in place on the pigtail anchor 14 which has been assembled to the upper end of each strongback 17 by a dummy she-bolt construction 18 aflixed in place by a bracket 19 and a pin 20, the bracket being affixed to the strongback 17 by double-headed nails 21.
  • the pigtail anchor 14 which has been cast in the previous lift 13' is used to support the cantilever form 15 and the form is affixed to face of the lift by a regular she-bolt 22, clamp bracket 23, and adjusting nut 24.
  • the regular she-bolt having a tapered end fits into an enlarged tapered hole 26 left by an enlarged tapered end 27 of the dummy she-bolt.
  • the forms are erected in place as illustrated in Fig. 4 and raised in position by suitable hoists (not shown) connected to the hangers 17' as disclosed and claimed in the aforementioned Patent No. 2,825,115.
  • the forms are raised in position, they are assembled to the she-bolt 14', for example, of the lift 13 and clamped in adjusted position after they have been leveled by a leveling jack 28.
  • the next successive form 15 is raised from its lower position in solid lines to dotted position 15" and similarly adjusted and affixed in position.
  • a scaffolding construction 29 as shown in the dotted lines assembled in position on the concrete form construction 15, and it may be affixed in the position as shown to be raised along with the form or other scaffolding constructions may be used which are tiltable to be dropped as the forms are raised to their next adjusted position, after which they are placed in position for erecting the form and for the use of the workers.
  • a pivoted scaffolding construction of this type is disclosed and claimed in my co-pending application, Serial No. 323,528, filed December 2, 1952, for Cantilever Form.
  • the scaffolding construction of this invention may be used separately, it may also be used in conjunction with a scaffolding construction 29 already erected in place on the form where it is necessary, for example, to have a scaffold in position for leveling the form after it has been raised to its next position with the scaffolding construction 10 assembled to the pigtail anchors 14 cast within the lift 30 while the concrete form construction 15 is being assembled to the pigtail anchors 14' in the lift 13' which was previously poured and set when the concrete form construction 15 was assembled to the lower pigtail anchors 14 within the lift 30.
  • the pigtail anchors form suitable supports to which the adjustable scaffold brackets may be directly affixed.
  • each adjustable scaffold bracket 11 comprises a vertical U-shaped member 35 provided with longitudinally extending spaced legs 36 and an end 37 complementally formed to receive a short she-bolt 38, which may be complementally tapered to fit within the enlarged tapered opening 26 so that the short she-bolt may be threaded to the threaded end 31 of the anchoring means 14.
  • a hole 39 may be provided in the end of the she-bolt to receive a rod (not shown) for afiixing the short she-bolt to the anchoring means, or it may be formed with a squared end 32 as the dummy shebolts 18 and regular she-bolts 22 for affixing a wrench.
  • the end 37 is suspended from the short she-bolt 38 and the U-shaped member 35 is suspended therefrom and affixed in place by the nut 40 which is complementally threaded to the threaded outer end of the short she-bolt.
  • a rearwardly extending channel-shaped support member 41 which is formed by a one and three-fourths inch by two inch channel is hinged to the U-shaped member 35 by a T-bolt 33.
  • the hypotenuse or diagonal brace of the triangular-shaped bracket is formed by telescoping members 42 and 43.
  • the member 42 is formed from one and one-fourth inch tubing while the member 43 is formed from one and one-half inch tubing.
  • Holes 44 are provided in the member 42 and a hole 45 is formed in the lower end of the member 43 to receive securing means 46 in the form of a half inch bolt.
  • the telescoping members 42 and 43 are necessary to provide a scaffolding bracket suitable for use with battered concrete walls, dams, etc., which will be particularly described with reference to Figs. 5 and 6. If the lift 30 was constructed in the form of a batter, for example, at an angle of 30, the outer telescoping rod 43 would be telescoped upon the inner rod 42 and adjusted and secured in position by the securing means 46 so that the channel-shaped member 41 is in a horizontal position.
  • the upper end of the member 43 is pivotally connected to the channel member 41 by a half inch bolt or securing means 47 to form a hinged joint which, with the hinged joint formed by a securing means 48, including a half inch bolt extending through a half inch pipe spacer, affixing the lower end of the tubular member 42 to the U-shapedmember 35, permits the angular change in position of the members 35 and 41 to accommodate battered walls upon adjustment of the telescoping members 42 and 43 until the channel-shaped member 41 is in a horizontal or level position.
  • a post member 50 is formed from one and one-fourth inch tubing and the lower end 51 is telescoped within the upper end of the tubular member 43 and affixed thereto by the securing means 47, which pivotally secures the tubular member 43 and post member 50 to the outer end of the channel member 41 which has the base thereof notched out at 52 to permit the tubular member 43 to extend between the vertical flanges 53 of the channelshaped member.
  • a railing construction 54 is formed by a series of one-half or three-eighths inch rods 55 extending through holes formed in the post members 50, and the ends of the rods may be suitably threaded to receive nuts 56.
  • an adjustable scaffold bracket 11 would be assembled to the face of the concrete construction substantially every six feet or whatever the spacing of the pigtail anchors 14 happens to be; and if the forms are twenty or fifty feet in length, the length of the scaffolding construction would preferably approximate the length of the forms and the rods for the railing would extend the length of the scalfolding, and the rods may extend either the full length and extending through holes in each of the post members 50 or the railing construction may be suitably formed by alternating certain of the rods using shorter rods, if necessary, but the railing construction should be such that there is no danger of a workman falling off because of the lack of height of the railing and sufficiently vertically spaced rods may be provided to prevent any working hazard as the workman uses the scaffold.
  • a nailing strip 60 is assembled between the flanges of the channel-shaped member 41 and secured thereto by lag screws or other securing means 61.
  • the scaffolding 12 is formed by tWo-by-twelve inch planks 62 which are nailed together with a first course 63 to the nailing strip 60 by nails 64, and the second course 65 nailed to the first course by nails 66.
  • a center strip 67 may be formed between the two courses by two-by-four inch members 68 which may be suitably overlapped and nailed, if desired, together and to the nailing strip to complete the runway or scaffolding 12.
  • the scaffolding 12 may be formed as a detachable unit which may be preassembled and erected in place as the scaffold brackets are mounted upon the wall construction and dismantled also as a unit for reassembling as the scaffolding construction is dismantled and later reassembled.
  • the scaffolding construction 10 is illustrated in Fig. 5 as applied to a battered wall construction wherein the concrete form construction instead of being of the cantilever type as described with reference to Figs. 1 and 4 is illustrated with a scaffolding construction 70 formed of sheathing members 71 afiixed to studding 72 to which are supported waler members 73 with the lower waler member supported on waler sup ports or brackets 74, the walers 73 being spaced apart and between which a she-bolt 75 extends and is attached to pigtail anchoring means 76.
  • the waler supports 74 are constructed as disclosed and claimed in my US. Patent No.
  • FIG. 5 illustrates the scaffolding construction 10 assembled to a concrete form construction of this type which is erected for pouring a battered wall construction, and in which it is desired to have the scaffolding assembled directly to the concrete form construction so that it may be shifted with the forms as each successive lift is poured.
  • the scaffold brackets 11 are identical with respect to the scaffold brackets described with reference to the construction illustrated in Figs. 1, 2, and 3, like reference characters will illustrate the same or similar parts. The only dilference in the construction as illustrated in Fig.
  • the members 42 and 43 are telescoped together and assembled to a set of the vertically spaced holes 77 in the legs 36 provided for the adjustment of the telescoping members 42 and 43 to provide for angular adjustment of the scafiold bracket to take care of the angle of batter of the walls to which the scaffolding construction is applied, either directly to the scalfolding construction as illustrated in Fig. 5, or directly to the face of a battered wall as described with reference to the construction of Fig. 1.
  • the U-shaped member 35 is attached directly to space sets of walers 73 by the upper T-bolt 33 and the lower T-bolt 33'.
  • the T-bolt constructions 33 and 33' are left to hang between the legs 36 whereas in the construction illustrated in Figs. 5 and 6, the T-bolt constructions 33 and 33 are assembled between the waler members 73.
  • a one-fourth by one and one-half by three inch plate member 79 is assembled on the outer ends of each of the threaded ends 80 of the T-bolt and by a floating nut 81 for securely afiixing the legs of the U-shaped member 35 against the outer face of the waler members 73.
  • the telescoping members 42 and 43 may be adjusted together after the securing means 48 has been detached until the member 41 is in its horizontal position, after which the securing means 48 may be positioned in the proper hole 44 of the inner telescoping member 42 and the adjustable scaffold bracket 11 secured in its final adjusted position.
  • the railing construction 54 together with the post members 50 thereof are perpendicular to the horizontal position of the scaffolding 12.
  • the scaffolding construction 10 is illustrated as mounted on the same type of concrete form construction as shown in Fig. 5, but instead of being attached to a battered concrete construction, the scaffolding construction is shown mounted on a concrete form construction 70' which is vertical or perpendicular 'to the ground. Since the concrete form construction is the same as that of Fig. 5, like reference characters will indicate like or similar constructions.
  • the telescoping members 42 and 43 are moved outwardly upon the removal of the securing means 46 so that the channel member 41 is horizontal, after which the securing means 46 is inserted through the proper hole 44 in the telescoping member 42.
  • the diagonal brace is also moved down from the position of Fig.
  • the sheathing 71 may be large sheets of plywood and, in this case, the studs 72 may be loosely affixed between the waler members 73 and the sheathing. 71, being affixed in place by the she-bolt and the clamping bracket and adjusting nut therefor which, in turn, is affixed to either a pigtail anchoring construction 76 or othersuitable construction as disclosed and claimed in my co-pending application Serial No.
  • Fig. 6 If the scaffolding construction of Fig. 6 is applied to vertical walls or the forms therefor, it is possible to have scaffolding constructions mounted on opposite forms used in the construction of the walls. With the constructions illustrated in Figs. and 6, it is possible to erect the adjustable scaffold brackets 11 along any part of the waler constructions 73 and need not be particularly positioned contiguous to the studding or strongbacks, for example, of the constructions described with reference to Figs. 1 and 4.
  • Figs. 5 and 6 have been illustrated as being supported by the upper and lower T-bolts 33 and 33, it is also within the scope of the invention that only the upper T-bolt may be used as was described with the construction of Fig. 1, wherein only a single short she-bolt 38 was used in clamping the adjustable scaffold bracket 11 directly onto a pigtail anchoring means 14.
  • Figs. 1, 4, 7, and 8 there will be particularly described the suspended double scaffolding incorporating the adjustable scaffold bracket as particularly described with reference to Figs. 1, 2, and 3 as used on a longitudinal wall construction in combination with a cantilever type form, and also as the suspended double scaffolding may be used in connection with forms of Figs. 5 and 6 wherein the adjustable scaffold bracket is illustrated in connection with a battered wall construction. Since the scaffold bracket as used with the suspended double scaffolding is similar to that previously described with reference to the constructions of Figs. 1, 5, and 6, like reference characters will indicate the same or similar parts.
  • the adjustable scaffolding construction 10 is illustrated, for example, in the same position with respect to a cantilever type form construction of Fig. 1. Although illustrated as being positioned below the cantilever form construction for use in leveling and adjusting the cantilever form, it is to be understood that the adjustable scaffolding construction 10 may be positioned anywhere along the face of the concrete construction to which it may be detachably connected to pigtail anchoring means 14 or other anchoring means. With the suspended double scaffolding construction, the adjustable scaffold brackets 11 are similarly positioned along the face of the concrete wall construction as illustrated in Fig. 4, and the scaffolding 12 is similarly erected in place upon the brackets 11.
  • the suspended double scaffolding used in connection with the brackets 11 is suspended from the channel members 41 of the brackets 11 by adjustable /2 T-bolts 85 which are erected in front holes 86 and rear holes 87, Fig. 1, and extend downwardly through front slots 88 and rear slots 89, which permit the suspended double scaffolding construction 90 to be positioned at an angle with respect to'the battered walls as shown in the dotted position 91 of Fig. 7.
  • the front and rear T-bolts 85 are secured to the legs of the panel member 41 by securing means 92.
  • Couplings 93 complementally threaded to the threaded ends of the T-bolts 85 are aflfixed thereto and are also complementally threaded to detachably mount the /2 tie rods 94, which suspend a channel 95 similarly constructed as the channel member 41 of the adjustable scaffold bracket 11. Since the channel member 95 is identical to the channel member 41, similar reference characters will indicate the like construction of the channel member '41 which is used in mounting the similar scaffolding 12.
  • the front and rear tie rods 94 for the suspended channel member 95 are affixed by suitable securing means 96 attached to the threaded ends 97 of the rods together with washers 98.
  • the washers 98 are preferably used in conjunction with the slotted holes 88 and 89. Referring to Fig. 8, instead of the washers 98 being used with vertical wall constructions of Fig. 7, beveled washers 99 are used as illustrated in the dotted portion of Fig. 7 showing the suspended double scaffolding used with battered wall constructions.
  • Each channel 95 of the suspended double scaffolding is also provided with a front hole 100 and a rear hole 101 for receiving respectively the T-bolt 33 and the securing means 47 for the post member 50 as illustrated in Fig. 1.
  • the channel member 95 also is provided with a slot 88 at the front end and a slot 89 at the rear end corresponding to the same slot in the member 41 of the adjusting scaffolding construction 10, and also a slot 52 corresponding to the similar slot 52 of the member 41 adapted for receiving the post member 50.
  • a similar scaffolding 12 as that described with reference to Fig. 1 is mounted on the scaffolding construction 10, Fig. 7, and like reference characters identify the same or similar parts; and as this construction has been fully described with reference to Figs. 1, 4, 5, and 6, further description is unnecessary.
  • the suspended channel members 95 support a like scaffolding 12, and the nailing strip 60 is secured in the same manner as described with reference to the channel member 41 to the channel member 95.
  • the tie rods 94 may be of any length to properly suspend the lower scaffolding 12 beneath the upper scaffolding 12 mounted on the adjusting scaffolding construction 10 by the brackets 11.
  • the tie rods 94 should be of sufficient strength to support any of the loads suspended thereby and preferably is made of high tensile strength steel.
  • these suspended double scaffoldings may be used as desired across the face of a concrete wall construction or the like, and these may be suitably raised from one position to another by suitable hoists and afiixed to the pigtail anchoring means 14 as described above with reference to the construction of Fig. 1 and Figs. 5 and 6.
  • applicants construction is adapted for mounting on battered concrete wall constructions, either directly to the battered wall or to forms, such as illustrated in Figs. 5 or 6 for constructing straight or battered walls.
  • the telescoping inner member 42 and outer member 43 may be adjusted with respect to each other as described with reference to Fig.
  • the tie rods and lower scaffolding would be suspended from the holes 86 and 87 as described with reference to Fig. 7.
  • the tie rods 94 at the front and rear ends of the channel member 95 require the use of the beveled washer 99, as illustrated in Fig. 8, which shows the connection thereof at the rear end of the channel member 95.
  • the lower scaffolding for the purpose of simplifying the disclosure has not been illustrated showing a guard rail construction formed by the post members 50 and rods 55, it is to be understood that it is within the scope of the invention that, similarly, the U-shaped members 35 may be vertically suspended, as described with reference to Fig. 1 and illustrated also in Fig. 7, from the channel member 95 and connected to the hole 100 thereof by suitable securing means. Likewise, inner and outer telescoping members 42 and 43 may be connected respectively to the member 35 by securing means 48 and 47 to the channel member 95 at the hole 101; and this same securing means 47 will also support a similar guard rail construction including the members 50 and tie rods 55.
  • adjustable scaffold bracket including the elemental triangular shape which is adjustable so that the scaffold bracket may not only be used for assembly to either a vertical wall face of a concrete construction or to a concrete form construction which is erected to form a vertical wall and, likewise, the adjustable scaffold bracket is equally adapted for mounting directly on a battered face of a concrete form construction, and also adapted for mounting on a concrete form construction used in constructing battered faces of walls or dams.
  • a scaffolding construction which may be used separately and affixed directly to a face of a concrete wall construction whether vertical or at an angle for use in cleaning and patching the finished poured concrete construction, and which may also be used in conjunction with a concrete form construction so that workmen may erect the various hardware for mounting the concrete form for pouring the next successive lift, or it may be applied directly to a concrete form construction so that not only the form but the scaffolding may be moved directly from its previous position to its next successive position in pouring the concrete lifts.
  • a simple adjustable scaffold bracket which may be used with the planking as found on the job for completing the scaffolding, and also a scaffold construction which may be readily assembled to include a railing and disassembled for storing or for shifting from one position to another in the erection of a concrete wall or for use with the forms in the erection of such a concrete wall.
  • a simple suspended double scaffolding construction has been disclosed in which the same or similar scaffolding may be used in connection with the upper adjustable scaffolding bracket and with the lower support or channel member 95 of the suspended scaffolding construction.
  • the upper scaffolding and the lower scaffolding are similarly constructed and adapted to be secured to a similarly fonned nailing strip and channel therefor.
  • the lower scaffolding may be detachably connected to or disconnected from the upper scaffolding bracket, depending upon whether or not the lower suspended scaffolding is required for the particular job with which the scaffolding is to be used.
  • a scaffolding construction of this invention may be erected so that the scaffolding for each lift may be in alignment with or without the lower scaffolding suspended therefrom; and also that the scaffolding corresponding to each movable form construction may be staggered or otherwise erected to permit ready acceptability from one scaffolding to the next by the use of ladders or other suitable means.
  • the suspended double scaffolding may comprise similar scaffolding, as illustrated and described with reference to Fig. 1 and the upper scaffolding of Fig. 8, but in which the lower scaffolding also comprises a similarly formed scaffolding including the vertically suspended member and telescoping inner and outer members together with a railing construction, all of which are suspended by the tie rods from the similarly formed upper scaffolding.
  • a telescoping scaffold bracket adapted for affixing to a concrete form construction including spaced pairs of contiguously spaced waler members along the face of the concrete form construction, said scaffold bracket comprising a U-shaped vertical member, a channel-shaped horizontal member positioned between the legs of the U-shaped vertical member and pivotally connected thereto, a telescoping diagonal brace member pivotally mounted at its upper end to the outer end of the channel-shaped horizontal member and adjustably mounted at its lower end with respect to the lower end of the U-shaped vertical member, said U-shaped vertical member provided with means for vertical adjustment of the lower end of the telescoping diagonal brace member, complementally formed means for detachably affixing the lower end of the telescoping diagonal brace and the lower end of the U-shaped member together, and pivotally mounted T-shaped members operatively connected to the U-shaped member and including means for detachably securing the U-shaped member to the spaced pairs of the contiguously spaced waler
  • a telescoping scaffold bracket for affixing either to anchoring means embedded in a concrete wall construction and extending contiguous to the face thereof or for affixing to vertically spaced sets of contiguously spaced waler members of a concrete form construction
  • said scaffold bracket including a horizontal channel-shaped member, a U-shaped vertical member and a telescoping diagonal brace operatively connected together, said U-shaped member being inverted and complementally formed to receive a she-bolt for affixing the scaffold bracket to an anchoring means of a concrete wall construction to which said scaffold bracket may be afiixed, T-shaped securing means for pivotally affixing said inverted U-shaped member and said channel-shaped member together, said lower ends of the legs of the inverted U-shaped member formed with a series of vertically spaced holes, a lower T-shaped securing means adapted for detachably mounting in any of said series of holes, said upper and lower T-shaped securing means adapted
  • a telescoping scaffold bracket for affixing to a concrete form construction including spaced pairs of contiguously spaced waler members along the face of the concrete form construction, said scaffold bracket comprising a U-shaped vertical member, a channel-shaped horizontal member positioned between the legs of the U-shaped vertical member and pivotally connected thereto, a telescoping diagonal brace member pivotally mounted at its upper end to the outer end of the channel-shaped horizontal member and adjustably mounted at its lower end with respect to the lower end of the U-shaped vertical member, said U- shaped vertical member provided with means for vertical adjustment of the lower end of the telescoping diagonal member, complementally formed means for detachably affixing the lower end of the telescoping diagonal brace and the lower end of the U-shaped member together, and pivotally mounted T-shaped members operatively connected to the U-shaped member and including means for detachably securing the U-shaped member to the spaced pairs of the contiguously spaced waler members with the
  • a scaffold bracket adapted for affixing to a concrete form construction including spaced pairs of contiguously spaced waler members along the face of the concrete form construction, said scaffold bracket comprising a Vertical member, a channel-shaped member pivotally connected to the vertical member, a telescoping diagonal brace member pivotally mounted at its upper end to the outer end of the channel-shaped horizontal member and adjustably mounted at its lower end with respect to the lower end of the vertical member, said vertical member provided with means for vertical adjustment of the lower end of the telescoping diagonal brace member, complementally formed means for detachably affixing the lower end of the telescoping diagonal brace and the lower end of the vertical member together, and pivotally mounted T-shaped members operatively connected to the vertical member and including means for detachably securing the latter to the spaced pairs of the contiguously spaced waler members with the legs of the T-shaped members positioned between the contiguously spaced waler members, said channel-shaped horizontal member
  • a scaffold bracket adapted for affixing to a concrete form construction including spaced pairs of contiguously spaced waler members along the face of the concrete form construction, said scaffold bracket comprising a U-shaped vertical member, a channel-shaped horizontal member positioned between the legs of the U-shaped vertical member and pivotally connected thereto, a telescoping diagonal brace member pivotally mounted at its upper end to the outer end of the channel-shaped horizontal member and adjustably mounted at its lower end with respect to the lower end of the U-shaped vertical member, said U-shaped vertical member provided with means for vertical adjustment of the lower end of the telescoping diagonal brace member, complementally formed means for detachably affixing the lower end of the telescoping diagonal brace and the lower end of the U-shaped mem ber together, and pivotally mounted members operatively connected to the U-shaped member and including means for detachably securing the U-shaped member to the spaced pairs of the contiguously spaced waler members with portions of

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
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  • Bridges Or Land Bridges (AREA)
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Description

Dec. 8, 1959 c. I. WILLIAMS 2,916,245
ADJUSTABLE SCAFFOLD BRACKET Filed. Nov. 15, 1955 4 Sheets-Sheet 1 Dec. 8, 1959 c. I. WILLIAMS 2,916,245
ADJUSTABLE SCAFFOLD BRACKET Filed Nov. 15, 1955 4 Sheets-Sheet 2 .fizaezzjox Dec. 8, 1959 I c. 1. WILLIAMS 2,916,245
ADJUSTABLE SCAFF OLD BRACKET Filed Nov. 15, 1955 4 Sheets-Sheet 3 70 J7 J5 7a (W71 Mai 2M5.
a ydg Dec. 8, 1959 c. WILLIAMS 2,916,245
ADJUSTABLE SCAFFOLD BRACKET Filed Nov. 15, 1955 v 4 Sheets-Sheet 4 abLd v United States Patent ADJUSTABLE SCAFFOLD BRACKET Chester I. Williams, Grand Rapids, Mich.
Application November 15, 1955, Serial No. 546,918
'5 Claims. (Cl. 248-242) This invention relates to scaliolding construction, and more particularly relates to a scaffolding construction for use in the construction of straight and battered concrete walls for dams and the like, and used in conjunction with conventional concrete form construction.
This invention is used in conjunction with structures as disclosed and claimed in my co-pending applications, Serial No. 233,853, filed June 27, 1951, now U.S. Patent No. 2,825,115 for Method and Apparatus for Handling Forms; Serial No. 233,851, filed June 27, 1951, now U.S. Patent No. 2,823,441 for Dummy She-Bolts, and also utilizing in combination therewith waler supports as disclosed and claimed in my U.S. Patent No. 2,644,219 granted July 7, 1953 for Waler Support.
Prior to my invention, scafiolding constructions were usually incorporated with the various form constructions and movable therewith as used in the construction of walls, dams or other types of massive concrete constructions. However, it is necessary in the construction of walls, dams, and the like to clean the surfaces after they have been poured and set, and to patch various spots contiguous to tie rods, anchors, and the like, and if necessary to skim-coat the surface of the wall or dam to provide a pleasing appearance. When used in this manner, it is desirable to have a scafiolding construction and brackets therefor, which may be readily erected in place on any anchors or anchoring means previously used for the erection of the forms and which may be readily dismantled as the necessary cleaning and patching has been completed to move up or down to the next position where the scafiolding is erected. It is also desirable to have a scalfolding bracket construction which can be used either mounted directly on the concrete forms or attached directly to the precast wall, and which are also adapted for use either against the vertical wall to which they are attached or to a battered wall such as along the spillway of a dam or the like.
It is therefore a principal object of my invention to provide an improved and simplified adjustable scaffold bracket construction for use with straight or battered concrete walls, dams, and the like and which is readily adjustable for the angle of battered wallconstruction and also which may be applied directly to anchors used in the construction of the walls and also for use directly with various types of concrete form constructions.
Another object of the invention is to provide an improved and simplified adjustable scaffold bracket which may be erected in a minimum of time directly to the anchors for the forms as the forms are shifted and/or which may be assembled directly to the concrete forms, and may be moved directly with the forms as they are shifted and erected in place for pouring the next lift.
Another object of the invention is to provide an improved scatlold bracket which may be attached to an anchoring means with a she-bolt construction.
Another object of the invention is to provide a scaffold bracket construction which may be assembled directly to the waler constructions of a concrete form ice whether the concrete form is positioned vertically or at an angle for the construction of battered walls so that the scaflolding is level in either position.
Another object of the invention is to provide an improved scaifolding construction which may be mounted directly on the forms and moved therewith from one position to another in the pouring of the lifts.
Still another object of the invention is to provide a scaffolding construction which may be moved from one position to another in the assembled relationship for mounting directly on the anchors used in the erection of the concrete forms.
A still further object of the invention is to provide a simple method of erecting scaifolding construction directly to various types of anchoring means precast in the concrete construction or directly to structural members of a concrete form construction.
In order to accomplish the above objects of my invention, I have provided a simple scafiolding construction comprising triangular-shaped scaffold brackets in which the hypotenuse or diagonal brace member thereof is adjustable so that the scaffold brackets may be assembled directly to a vertical wall, or the hypotenuse or diagonal brace member telescoped to adjust to the angle of batter of inclined Walls to which the scaffolding is erected either directly to the face of the wall or upon the concrete form construction. This simple form of adjustable triangular-shaped scafr'old bracket also includes a railing construction which is substantially vertical whether the scalfolding construction is assembled to a vertical wall or to a battered wall construction.
In order to erect the improved scafiolding construction, I prefer to use a she-bolt construction for attaching the scaffolding construction directly to anchoring means, such as pigtail anchors, as disclosed and claimed in my copending United States applications Serial No. 183,735 filed September 8, 1950, now U.S. Patent No. 2,724,165 for Anchor for Concrete Forms; Serial No. 233,852 filed June 27, 1951 for Rod Hickey Splicer; Serial No. 494,377, filed March 15, 1955 for Support Plates for Tie Down System for Concrete Forms, and also a T-bolt construction for directly connecting the scaffold brackets to the waler members of a concrete form construction.
Many other objects and advantages of the construction herein shown and described will be obvious to those skilled in the art from the disclosure herein given.
To this end, my invention consists in the novel construction, arrangement, and combination of parts herein shown and described and more particularly pointed out in the claims.
In the drawings, wherein like reference characters indicate like or corresponding parts:
Fig. 1 is a vertical sectional view, in side elevation, illustrating the erection of the scaffolding construction to the anchoring means for erecting the concrete form construction, and illustrating the scaffolding construction for use with the concrete form construction;
Fig. 2 is a view in elevation, partly in section, taken along the line 2-2 of Fig. 1 looking in the direction of the arrows;
Fig. 3 is a plan view illustrating the planking of the scaffolding and the scaffold brackets assembled to a 'longitudinal face of a concrete wall construction, as illustrated in Fig. 1;
Fig. 4 is a view in front elevation illustrating the improved scatfolding construction mounted on a concrete wall construction and used in conjunction with a concrete forrn construction;
Fig. 5 is a view in side elevation, partly in cross section, illustrating the scafiolding construction of Fig. 1 assembled to a concrete form construction positioned at an angle for a battered wall construction;
Fig. 6 is a view in side elevation, partly in cross section, illustrating the scaffolding construction of Fig. 1 assembled to the waler members of a concrete form construction, as illustrated in Fig. and used in the erection of a vertical wall.
Fig. 7 is a vertical sectional view similar to Fig. 1, illustrating a double scaffolding and the erection thereof on a longitudinal face of a concrete wall construction; and
Fig. 8 is an enlarged view of a beveled washer construction used with the double scaffolding of Fig. 7 with battered concrete walls as illustrated in the dotted lines of Fig. 7.
Referring now to the drawings, particularly Figs. 1 through 4, there will be described the adjustable scaffold bracket and the manner of erecting it in conjunction with a concrete form construction and the resultant wall to which the scaffolding construction is mounted. A scaffold construction 10 comprises an adjustable scaffold bracket 11 and scaffolding 12 mounted on a face of a concrete wall or massive dam construction 13 and affixed to a pigtail anchor construction 14 as disclosed and claimed in my US. Patents Nos. 2,724,165 for Anchor for Concrete Forms, and 2,825,165 for Method and Apparatus for Handling Forms. The scaffolding construction 10 preferably comprises a plurality of these triangularshaped adjustable scaffold brackets 11 affixed to a series of the pigtail anchors 14 as they extend across each lift of the dam construction, and which are left in the construction of each lift by a cantilever type form construction 15 in the construction of the massive concrete mass, as a wall or dam 13.
Referring to Figs. 1, 3, and 4, the cantilever type form construction 15 is similar to that as disclosed and claimed in my patent, No. 2,825,115, for Method and Apparatus for Handling Forms, and includes sheathing 16 aflixed to strongbacks 17 erected on the peripheral face of a concrete block construction 13 such as is used in dam construction. For an ordinary concrete form construction where large lifts of concrete are being cast, the relative size of the strongback is substantialty twelve inches by twelve inches and the sheathing is made up of members four inches in thickness. The relative lentgh of these cantilever type forms as they are erected may range up to twenty-five or even to fifty feet in length, and the spacing between the strongbacks is usually six feet so that for use with concrete form constructions of this type, the adjustable scaffold brackets 11 are similarly spaced as the strongbacks and the scaffolding are usually comparable in length to that of the forms. The concrete forms 15 are erected in place on the pigtail anchor 14 which has been assembled to the upper end of each strongback 17 by a dummy she-bolt construction 18 aflixed in place by a bracket 19 and a pin 20, the bracket being affixed to the strongback 17 by double-headed nails 21. The pigtail anchor 14 which has been cast in the previous lift 13' is used to support the cantilever form 15 and the form is affixed to face of the lift by a regular she-bolt 22, clamp bracket 23, and adjusting nut 24. The regular she-bolt having a tapered end fits into an enlarged tapered hole 26 left by an enlarged tapered end 27 of the dummy she-bolt. The forms are erected in place as illustrated in Fig. 4 and raised in position by suitable hoists (not shown) connected to the hangers 17' as disclosed and claimed in the aforementioned Patent No. 2,825,115. After the forms are raised in position, they are assembled to the she-bolt 14', for example, of the lift 13 and clamped in adjusted position after they have been leveled by a leveling jack 28. The next successive form 15 is raised from its lower position in solid lines to dotted position 15" and similarly adjusted and affixed in position. Usually, there is also a scaffolding construction 29 as shown in the dotted lines assembled in position on the concrete form construction 15, and it may be affixed in the position as shown to be raised along with the form or other scaffolding constructions may be used which are tiltable to be dropped as the forms are raised to their next adjusted position, after which they are placed in position for erecting the form and for the use of the workers. A pivoted scaffolding construction of this type is disclosed and claimed in my co-pending application, Serial No. 323,528, filed December 2, 1952, for Cantilever Form.
Although the scaffolding construction of this invention may be used separately, it may also be used in conjunction with a scaffolding construction 29 already erected in place on the form where it is necessary, for example, to have a scaffold in position for leveling the form after it has been raised to its next position with the scaffolding construction 10 assembled to the pigtail anchors 14 cast within the lift 30 while the concrete form construction 15 is being assembled to the pigtail anchors 14' in the lift 13' which was previously poured and set when the concrete form construction 15 was assembled to the lower pigtail anchors 14 within the lift 30. By using a scaffolding construction 10 of this type which may be assembled directly to the threaded end 31 of the pigtail anchor 14, it is not necessary to erect scaffolding to other types of anchors which must be assembled to the peripheral face of the concrete construction by having workmen drill holes in the face of the concrete to assemble these anchors. With this improved construction, the pigtail anchors form suitable supports to which the adjustable scaffold brackets may be directly affixed.
Referring to Figs. 1, 2, and 3, each adjustable scaffold bracket 11 comprises a vertical U-shaped member 35 provided with longitudinally extending spaced legs 36 and an end 37 complementally formed to receive a short she-bolt 38, which may be complementally tapered to fit within the enlarged tapered opening 26 so that the short she-bolt may be threaded to the threaded end 31 of the anchoring means 14. A hole 39 may be provided in the end of the she-bolt to receive a rod (not shown) for afiixing the short she-bolt to the anchoring means, or it may be formed with a squared end 32 as the dummy shebolts 18 and regular she-bolts 22 for affixing a wrench. The end 37 is suspended from the short she-bolt 38 and the U-shaped member 35 is suspended therefrom and affixed in place by the nut 40 which is complementally threaded to the threaded outer end of the short she-bolt. A rearwardly extending channel-shaped support member 41 which is formed by a one and three-fourths inch by two inch channel is hinged to the U-shaped member 35 by a T-bolt 33. The hypotenuse or diagonal brace of the triangular-shaped bracket is formed by telescoping members 42 and 43. The member 42 is formed from one and one-fourth inch tubing while the member 43 is formed from one and one-half inch tubing. Holes 44 are provided in the member 42 and a hole 45 is formed in the lower end of the member 43 to receive securing means 46 in the form of a half inch bolt. The telescoping members 42 and 43 are necessary to provide a scaffolding bracket suitable for use with battered concrete walls, dams, etc., which will be particularly described with reference to Figs. 5 and 6. If the lift 30 was constructed in the form of a batter, for example, at an angle of 30, the outer telescoping rod 43 would be telescoped upon the inner rod 42 and adjusted and secured in position by the securing means 46 so that the channel-shaped member 41 is in a horizontal position. The upper end of the member 43 is pivotally connected to the channel member 41 by a half inch bolt or securing means 47 to form a hinged joint which, with the hinged joint formed by a securing means 48, including a half inch bolt extending through a half inch pipe spacer, affixing the lower end of the tubular member 42 to the U-shapedmember 35, permits the angular change in position of the members 35 and 41 to accommodate battered walls upon adjustment of the telescoping members 42 and 43 until the channel-shaped member 41 is in a horizontal or level position.
A post member 50 is formed from one and one-fourth inch tubing and the lower end 51 is telescoped within the upper end of the tubular member 43 and affixed thereto by the securing means 47, which pivotally secures the tubular member 43 and post member 50 to the outer end of the channel member 41 which has the base thereof notched out at 52 to permit the tubular member 43 to extend between the vertical flanges 53 of the channelshaped member. A railing construction 54 is formed by a series of one-half or three-eighths inch rods 55 extending through holes formed in the post members 50, and the ends of the rods may be suitably threaded to receive nuts 56. For example, if the spacing of the strongbacks is six feet, an adjustable scaffold bracket 11 would be assembled to the face of the concrete construction substantially every six feet or whatever the spacing of the pigtail anchors 14 happens to be; and if the forms are twenty or fifty feet in length, the length of the scaffolding construction would preferably approximate the length of the forms and the rods for the railing would extend the length of the scalfolding, and the rods may extend either the full length and extending through holes in each of the post members 50 or the railing construction may be suitably formed by alternating certain of the rods using shorter rods, if necessary, but the railing construction should be such that there is no danger of a workman falling off because of the lack of height of the railing and sufficiently vertically spaced rods may be provided to prevent any working hazard as the workman uses the scaffold. In order to provide means for assembling the planking of the scaffolding 12, a nailing strip 60 is assembled between the flanges of the channel-shaped member 41 and secured thereto by lag screws or other securing means 61. The scaffolding 12 is formed by tWo-by-twelve inch planks 62 which are nailed together with a first course 63 to the nailing strip 60 by nails 64, and the second course 65 nailed to the first course by nails 66. A center strip 67 may be formed between the two courses by two-by-four inch members 68 which may be suitably overlapped and nailed, if desired, together and to the nailing strip to complete the runway or scaffolding 12. The scaffolding 12 may be formed as a detachable unit which may be preassembled and erected in place as the scaffold brackets are mounted upon the wall construction and dismantled also as a unit for reassembling as the scaffolding construction is dismantled and later reassembled.
Referring to Figs. 5 and 6, the scaffolding construction 10 is illustrated in Fig. 5 as applied to a battered wall construction wherein the concrete form construction instead of being of the cantilever type as described with reference to Figs. 1 and 4 is illustrated with a scaffolding construction 70 formed of sheathing members 71 afiixed to studding 72 to which are supported waler members 73 with the lower waler member supported on waler sup ports or brackets 74, the walers 73 being spaced apart and between which a she-bolt 75 extends and is attached to pigtail anchoring means 76. The waler supports 74 are constructed as disclosed and claimed in my US. Patent No. 2,644,219 granted July 7, 1953, and the concrete form construction 70 may be of the same construction as disclosed and claimed in this application, and the tie rods and anchoring means may be as disclosed and claimed in my US). Patent No. 2,190,748 granted February 20, 1940. The concrete form construction 70 constructed in this manner is usually used for concrete form constructions which do not have the loads as the massive dam constructions for which the cantilever type of forms are used. However, concrete form constructions of the type illustrated in Figs. 5 and 6 when proportioned to the loads used may also be constructed in this manner. Fig. 5 illustrates the scaffolding construction 10 assembled to a concrete form construction of this type which is erected for pouring a battered wall construction, and in which it is desired to have the scaffolding assembled directly to the concrete form construction so that it may be shifted with the forms as each successive lift is poured. Since the scaffold brackets 11 are identical with respect to the scaffold brackets described with reference to the construction illustrated in Figs. 1, 2, and 3, like reference characters will illustrate the same or similar parts. The only dilference in the construction as illustrated in Fig. 5 is that the members 42 and 43 are telescoped together and assembled to a set of the vertically spaced holes 77 in the legs 36 provided for the adjustment of the telescoping members 42 and 43 to provide for angular adjustment of the scafiold bracket to take care of the angle of batter of the walls to which the scaffolding construction is applied, either directly to the scalfolding construction as illustrated in Fig. 5, or directly to the face of a battered wall as described with reference to the construction of Fig. 1.
Instead of the U-shaped member 35 being assembled directly to the face of the concrete construction, the U- shaped member 35 is attached directly to space sets of walers 73 by the upper T-bolt 33 and the lower T-bolt 33'. In the construction illustrated in Fig. l, the T-bolt constructions 33 and 33' are left to hang between the legs 36 whereas in the construction illustrated in Figs. 5 and 6, the T- bolt constructions 33 and 33 are assembled between the waler members 73. A one-fourth by one and one-half by three inch plate member 79 is assembled on the outer ends of each of the threaded ends 80 of the T-bolt and by a floating nut 81 for securely afiixing the legs of the U-shaped member 35 against the outer face of the waler members 73. When clamped in this adjusted position, the telescoping members 42 and 43 may be adjusted together after the securing means 48 has been detached until the member 41 is in its horizontal position, after which the securing means 48 may be positioned in the proper hole 44 of the inner telescoping member 42 and the adjustable scaffold bracket 11 secured in its final adjusted position. In this adjusted position of Fig. 5, the railing construction 54 together with the post members 50 thereof are perpendicular to the horizontal position of the scaffolding 12.
Referring to Fig. 6, the scaffolding construction 10 is illustrated as mounted on the same type of concrete form construction as shown in Fig. 5, but instead of being attached to a battered concrete construction, the scaffolding construction is shown mounted on a concrete form construction 70' which is vertical or perpendicular 'to the ground. Since the concrete form construction is the same as that of Fig. 5, like reference characters will indicate like or similar constructions. In this vertical position, the telescoping members 42 and 43 are moved outwardly upon the removal of the securing means 46 so that the channel member 41 is horizontal, after which the securing means 46 is inserted through the proper hole 44 in the telescoping member 42. The diagonal brace is also moved down from the position of Fig. 5 for a battered wall to that of a vertical wall Fig. 6 and the securing means 48 reassembled. In this adjusted position, the railing construction 54 and the post members 50 therefor, are perpendicular to the scaffolding 12. It is possible to erect the scaffolding construction 10 on the ground either to the position shown in Fig. 5 for a battered wall construction or as shown in Fig. 6 for a vertical wall construction, after which the forms in these assembled positions may be raised by a suitable hoist and erected in position on the waler members 73 by the upper T-bolt 33 and lower T-bolt 33 for each scaffold bracket 11. The concrete form constructions as illustrated with the scafiolding construction on the forms as shown in Figs. 5 and 6 are held in position on the previously poured lifts by the she-bolts 75 and anchoring means 76 with the she-bolts extending through the sheathing 71 and atfixed to the waler members 73 by suitable clamp ing brackets and adjusting nuts (not shown). In certain of these concrete form constructions, the sheathing 71 may be large sheets of plywood and, in this case, the studs 72 may be loosely affixed between the waler members 73 and the sheathing. 71, being affixed in place by the she-bolt and the clamping bracket and adjusting nut therefor which, in turn, is affixed to either a pigtail anchoring construction 76 or othersuitable construction as disclosed and claimed in my co-pending application Serial No. 233,852, filed June 27, 1951 for Rod Hickey Splicer. If the scaffolding construction of Fig. 6 is applied to vertical walls or the forms therefor, it is possible to have scaffolding constructions mounted on opposite forms used in the construction of the walls. With the constructions illustrated in Figs. and 6, it is possible to erect the adjustable scaffold brackets 11 along any part of the waler constructions 73 and need not be particularly positioned contiguous to the studding or strongbacks, for example, of the constructions described with reference to Figs. 1 and 4.
Although the constructions of Figs. 5 and 6 have been illustrated as being supported by the upper and lower T- bolts 33 and 33, it is also within the scope of the invention that only the upper T-bolt may be used as was described with the construction of Fig. 1, wherein only a single short she-bolt 38 was used in clamping the adjustable scaffold bracket 11 directly onto a pigtail anchoring means 14.
Referring to Figs. 1, 4, 7, and 8, there will be particularly described the suspended double scaffolding incorporating the adjustable scaffold bracket as particularly described with reference to Figs. 1, 2, and 3 as used on a longitudinal wall construction in combination with a cantilever type form, and also as the suspended double scaffolding may be used in connection with forms of Figs. 5 and 6 wherein the adjustable scaffold bracket is illustrated in connection with a battered wall construction. Since the scaffold bracket as used with the suspended double scaffolding is similar to that previously described with reference to the constructions of Figs. 1, 5, and 6, like reference characters will indicate the same or similar parts.
Referring to Fig. 7, the adjustable scaffolding construction 10 is illustrated, for example, in the same position with respect to a cantilever type form construction of Fig. 1. Although illustrated as being positioned below the cantilever form construction for use in leveling and adjusting the cantilever form, it is to be understood that the adjustable scaffolding construction 10 may be positioned anywhere along the face of the concrete construction to which it may be detachably connected to pigtail anchoring means 14 or other anchoring means. With the suspended double scaffolding construction, the adjustable scaffold brackets 11 are similarly positioned along the face of the concrete wall construction as illustrated in Fig. 4, and the scaffolding 12 is similarly erected in place upon the brackets 11.
The suspended double scaffolding used in connection with the brackets 11 is suspended from the channel members 41 of the brackets 11 by adjustable /2 T-bolts 85 which are erected in front holes 86 and rear holes 87, Fig. 1, and extend downwardly through front slots 88 and rear slots 89, which permit the suspended double scaffolding construction 90 to be positioned at an angle with respect to'the battered walls as shown in the dotted position 91 of Fig. 7. The front and rear T-bolts 85 are secured to the legs of the panel member 41 by securing means 92. Couplings 93 complementally threaded to the threaded ends of the T-bolts 85 are aflfixed thereto and are also complementally threaded to detachably mount the /2 tie rods 94, which suspend a channel 95 similarly constructed as the channel member 41 of the adjustable scaffold bracket 11. Since the channel member 95 is identical to the channel member 41, similar reference characters will indicate the like construction of the channel member '41 which is used in mounting the similar scaffolding 12. The front and rear tie rods 94 for the suspended channel member 95 are affixed by suitable securing means 96 attached to the threaded ends 97 of the rods together with washers 98. The washers 98 are preferably used in conjunction with the slotted holes 88 and 89. Referring to Fig. 8, instead of the washers 98 being used with vertical wall constructions of Fig. 7, beveled washers 99 are used as illustrated in the dotted portion of Fig. 7 showing the suspended double scaffolding used with battered wall constructions.
Each channel 95 of the suspended double scaffolding is also provided with a front hole 100 and a rear hole 101 for receiving respectively the T-bolt 33 and the securing means 47 for the post member 50 as illustrated in Fig. 1. The channel member 95 also is provided with a slot 88 at the front end and a slot 89 at the rear end corresponding to the same slot in the member 41 of the adjusting scaffolding construction 10, and also a slot 52 corresponding to the similar slot 52 of the member 41 adapted for receiving the post member 50.
A similar scaffolding 12 as that described with reference to Fig. 1 is mounted on the scaffolding construction 10, Fig. 7, and like reference characters identify the same or similar parts; and as this construction has been fully described with reference to Figs. 1, 4, 5, and 6, further description is unnecessary. Similarly, the suspended channel members 95 support a like scaffolding 12, and the nailing strip 60 is secured in the same manner as described with reference to the channel member 41 to the channel member 95. It is to be understood that the tie rods 94 may be of any length to properly suspend the lower scaffolding 12 beneath the upper scaffolding 12 mounted on the adjusting scaffolding construction 10 by the brackets 11. The tie rods 94 should be of sufficient strength to support any of the loads suspended thereby and preferably is made of high tensile strength steel. Also, as many of these suspended double scaffoldings may be used as desired across the face of a concrete wall construction or the like, and these may be suitably raised from one position to another by suitable hoists and afiixed to the pigtail anchoring means 14 as described above with reference to the construction of Fig. 1 and Figs. 5 and 6.
Referring to Figs. 5, 6, 7, and 8, applicants construction is adapted for mounting on battered concrete wall constructions, either directly to the battered wall or to forms, such as illustrated in Figs. 5 or 6 for constructing straight or battered walls. In supporting the suspended double scaffolding for battered wall constructions to adjust the upper and lower scaifoldings to the angle of batter, the telescoping inner member 42 and outer member 43 may be adjusted with respect to each other as described with reference to Fig. 5 by placing the securing means 46 through the holes 45 in the outer tubular member 43 and through one of the holes 44 of the inner tubular member 42 to the proper extended length of the members 42 and 43, so that the upper scaffolding 12 on the channel member 41 and the lower scaffolding 12 on the lower channel member 95 are horizontally positioned as shown in the solid line, Fig. 7, for the upper scaffolding; and the dotted lower position of the lower scaffolding 12, with the tie rods 94 being parallel and inclined as shown in the dotted position and also parallel to the battered wall as illustrated in Fig. 7 or parallel to the forms, for example, as illustrated in Fig. 5 wherein the upper scaffolding is shown mounted on a form for a battered wall, and the tie rods and lower scaffolding would be suspended from the holes 86 and 87 as described with reference to Fig. 7. When the suspended double scaffolding of Fig. 7 is used with either battered walls or battered forms, the tie rods 94 at the front and rear ends of the channel member 95 require the use of the beveled washer 99, as illustrated in Fig. 8, which shows the connection thereof at the rear end of the channel member 95.
Although the lower scaffolding for the purpose of simplifying the disclosure has not been illustrated showing a guard rail construction formed by the post members 50 and rods 55, it is to be understood that it is within the scope of the invention that, similarly, the U-shaped members 35 may be vertically suspended, as described with reference to Fig. 1 and illustrated also in Fig. 7, from the channel member 95 and connected to the hole 100 thereof by suitable securing means. Likewise, inner and outer telescoping members 42 and 43 may be connected respectively to the member 35 by securing means 48 and 47 to the channel member 95 at the hole 101; and this same securing means 47 will also support a similar guard rail construction including the members 50 and tie rods 55.
It is therefore obvious that there has been disclosed a simple form of adjustable scaffold bracket including the elemental triangular shape which is adjustable so that the scaffold bracket may not only be used for assembly to either a vertical wall face of a concrete construction or to a concrete form construction which is erected to form a vertical wall and, likewise, the adjustable scaffold bracket is equally adapted for mounting directly on a battered face of a concrete form construction, and also adapted for mounting on a concrete form construction used in constructing battered faces of walls or dams.
It is also evident that there has been disclosed a scaffolding construction which may be used separately and affixed directly to a face of a concrete wall construction whether vertical or at an angle for use in cleaning and patching the finished poured concrete construction, and which may also be used in conjunction with a concrete form construction so that workmen may erect the various hardware for mounting the concrete form for pouring the next successive lift, or it may be applied directly to a concrete form construction so that not only the form but the scaffolding may be moved directly from its previous position to its next successive position in pouring the concrete lifts.
It is also obvious that there has been disclosed a simple ,scaffolding construction which may be preassembled on the ground and then assembled in place on either a vertical or battered wall construction or on a vertical or battered concrete form construction, and which may also be adjusted for changes in batter of the concrete wall construction as the occasion is required in the construction of the wall or dam construction.
Furthermore, a simple adjustable scaffold bracket has been disclosed which may be used with the planking as found on the job for completing the scaffolding, and also a scaffold construction which may be readily assembled to include a railing and disassembled for storing or for shifting from one position to another in the erection of a concrete wall or for use with the forms in the erection of such a concrete wall.
It is also evident that there has been disclosed a simple form of suspended double scaffolding which may be preassembled on the ground and then assembled in place on either'a vertical or battered wall construction or on a vertical or battered concrete form construction, and which may also be adjusted for changes in the batter of the concrete wall construction as the occasion is required in the construction of the wall or darn construction.
Furthermore, a simple suspended double scaffolding construction has been disclosed in which the same or similar scaffolding may be used in connection with the upper adjustable scaffolding bracket and with the lower support or channel member 95 of the suspended scaffolding construction. Likewise, the upper scaffolding and the lower scaffolding are similarly constructed and adapted to be secured to a similarly fonned nailing strip and channel therefor.
It is also evident that the lower scaffolding may be detachably connected to or disconnected from the upper scaffolding bracket, depending upon whether or not the lower suspended scaffolding is required for the particular job with which the scaffolding is to be used.
It is also understood that a scaffolding construction of this invention may be erected so that the scaffolding for each lift may be in alignment with or without the lower scaffolding suspended therefrom; and also that the scaffolding corresponding to each movable form construction may be staggered or otherwise erected to permit ready acceptability from one scaffolding to the next by the use of ladders or other suitable means.
It is also within the scope of the invention that the suspended double scaffolding may comprise similar scaffolding, as illustrated and described with reference to Fig. 1 and the upper scaffolding of Fig. 8, but in which the lower scaffolding also comprises a similarly formed scaffolding including the vertically suspended member and telescoping inner and outer members together with a railing construction, all of which are suspended by the tie rods from the similarly formed upper scaffolding.
Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence, I do not wish to be understood as limiting myself to the exact form, construction, arrangement and combination of parts herein shown and described or uses mentioned.
What I claim as new and desire to secure by Letters Patent is:
1. As an article of manufacture, a telescoping scaffold bracket adapted for affixing to a concrete form construction including spaced pairs of contiguously spaced waler members along the face of the concrete form construction, said scaffold bracket comprising a U-shaped vertical member, a channel-shaped horizontal member positioned between the legs of the U-shaped vertical member and pivotally connected thereto, a telescoping diagonal brace member pivotally mounted at its upper end to the outer end of the channel-shaped horizontal member and adjustably mounted at its lower end with respect to the lower end of the U-shaped vertical member, said U-shaped vertical member provided with means for vertical adjustment of the lower end of the telescoping diagonal brace member, complementally formed means for detachably affixing the lower end of the telescoping diagonal brace and the lower end of the U-shaped member together, and pivotally mounted T-shaped members operatively connected to the U-shaped member and including means for detachably securing the U-shaped member to the spaced pairs of the contiguously spaced waler members with the legs of the T-shaped members positioned between the contiguously spaced waler members, said channel-shaped horizontal member adapted to mount scaffolding thereon, and a post member operatively affixed to the upper end of the telescoping diagonal brace so that the post member is perpendicular to the channel-shaped horizontal member in the level position thereof.
2. As an article of manufacture, a telescoping scaffold bracket for affixing either to anchoring means embedded in a concrete wall construction and extending contiguous to the face thereof or for affixing to vertically spaced sets of contiguously spaced waler members of a concrete form construction, said scaffold bracket including a horizontal channel-shaped member, a U-shaped vertical member and a telescoping diagonal brace operatively connected together, said U-shaped member being inverted and complementally formed to receive a she-bolt for affixing the scaffold bracket to an anchoring means of a concrete wall construction to which said scaffold bracket may be afiixed, T-shaped securing means for pivotally affixing said inverted U-shaped member and said channel-shaped member together, said lower ends of the legs of the inverted U-shaped member formed with a series of vertically spaced holes, a lower T-shaped securing means adapted for detachably mounting in any of said series of holes, said upper and lower T-shaped securing means adapted for detachably securing the scaffold bracket to the vertically spaced sets of spaced waler members when the scaffold bracket is used with a concrete form construction, said telescoping diagonal brace adapted for angularly adjusting the angle between the inverted U-shaped member and the channel-shaped member whereby the channel-shaped member is maintained in a level position whether the scaffold bracket is affixed either to a vertical concrete wall construction or to a vertical concrete form construction and also the channel-shaped member is adapted to be maintained in a level position whether the scaffold bracket is afhxed to a battered concrete wall construction or a battered concrete form construction, said channel-shaped member adapted for detachably affixing scaffolding thereto, a post member operatively affixed to the diagonal brace whereby upon adjustment of the telescoping diagonal brace and the adjustment thereof with respect to the inverted Ll-shaped member and affixed in its adjusted position, the post member is maintained in a vertical position with respect to the channel-shaped member as the channel-shaped member is maintained in a level position upon erection of the scaffold bracket to either a vertical wall construction or concrete form construction or affixed upon a battered concrete wall construction or a battered concrete form construction, and said post member adapted to support a railing construction.
3. As an article of manufacture, a telescoping scaffold bracket for affixing to a concrete form construction including spaced pairs of contiguously spaced waler members along the face of the concrete form construction, said scaffold bracket comprising a U-shaped vertical member, a channel-shaped horizontal member positioned between the legs of the U-shaped vertical member and pivotally connected thereto, a telescoping diagonal brace member pivotally mounted at its upper end to the outer end of the channel-shaped horizontal member and adjustably mounted at its lower end with respect to the lower end of the U-shaped vertical member, said U- shaped vertical member provided with means for vertical adjustment of the lower end of the telescoping diagonal member, complementally formed means for detachably affixing the lower end of the telescoping diagonal brace and the lower end of the U-shaped member together, and pivotally mounted T-shaped members operatively connected to the U-shaped member and including means for detachably securing the U-shaped member to the spaced pairs of the contiguously spaced waler members with the legs of the T-shaped members positioned between the contiguously spaced waler members.
4. As an article of manufacture, a scaffold bracket adapted for affixing to a concrete form construction including spaced pairs of contiguously spaced waler members along the face of the concrete form construction, said scaffold bracket comprising a Vertical member, a channel-shaped member pivotally connected to the vertical member, a telescoping diagonal brace member pivotally mounted at its upper end to the outer end of the channel-shaped horizontal member and adjustably mounted at its lower end with respect to the lower end of the vertical member, said vertical member provided with means for vertical adjustment of the lower end of the telescoping diagonal brace member, complementally formed means for detachably affixing the lower end of the telescoping diagonal brace and the lower end of the vertical member together, and pivotally mounted T-shaped members operatively connected to the vertical member and including means for detachably securing the latter to the spaced pairs of the contiguously spaced waler members with the legs of the T-shaped members positioned between the contiguously spaced waler members, said channel-shaped horizontal member adapted to mount scaffolding thereon, and a post member operatively affixed to the upper end of the telescoping diagonal brace so that the post member is perpendicular to the channel-shaped horizontal member in the level position thereof.
5. As an article of manufacture, a scaffold bracket adapted for affixing to a concrete form construction including spaced pairs of contiguously spaced waler members along the face of the concrete form construction, said scaffold bracket comprising a U-shaped vertical member, a channel-shaped horizontal member positioned between the legs of the U-shaped vertical member and pivotally connected thereto, a telescoping diagonal brace member pivotally mounted at its upper end to the outer end of the channel-shaped horizontal member and adjustably mounted at its lower end with respect to the lower end of the U-shaped vertical member, said U-shaped vertical member provided with means for vertical adjustment of the lower end of the telescoping diagonal brace member, complementally formed means for detachably affixing the lower end of the telescoping diagonal brace and the lower end of the U-shaped mem ber together, and pivotally mounted members operatively connected to the U-shaped member and including means for detachably securing the U-shaped member to the spaced pairs of the contiguously spaced waler members with portions of said pivotally mounted members positioned between the contiguously spaced waler members, said channel-shaped horizontal member adapted to mount scaffolding thereon, and a post member operatively affixed to the upper end of the telescoping diagonal brace so that the post member is perpendicular to the channel-shaped horizontal member in the level position thereof.
References Cited in the file of this patent UNITED STATES PATENTS Re. 13,036 Humphries Nov. 9, 1909 27,441 Gifford Mar. 13, 1860 528,169 Kenison et a1 Oct. 30, 1894 1,082,448 Scharer Dec. 23, 1913 1,478,941 Comeau Dec. 25, 1923 1,586,421 Frush May 25, 1926 1,587,238 Minzoni Jun 1, 1926 1,829,550 Symons Oct. 27, 1931 2,172,796 Krasin Sept. 12, 1939 2,190,748 Williams Feb. 20, 1940 2,446,093 Lambert July 27, 1948 2,577,979 Pierson et al Dec. 11, 1951 2,631,352 Williams Mar. 17, 1953 2,641,429 Kozak June 9, 1953 2,644,219 Williams July 7, 1953 2,659,125 Williams Nov. 17, 1953 2,702,420 Williams Feb. 22, 1955 2,724,165 Williams Nov. 22, 1955 FOREIGN PATENTS 84,737 Switzerland Aug. 16, 1920 190,069 Switzerland June 1, 1937 361,840 Italy Aug. 5, 1939 658,134 Great Britain Oct. 3, 1951 664,090 Germany Aug. 19, 1938 755,894 France Sept. 11, 1933
US546918A 1955-11-15 1955-11-15 Adjustable scaffold bracket Expired - Lifetime US2916245A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044573A (en) * 1960-03-28 1962-07-17 James H Jackson Scaffold bracket
US3119590A (en) * 1963-07-01 1964-01-28 Superior Coucrete Accessories Adjustable, collapsible, and articulated bracket for supporting a concrete form for a bridge fascia
US3193233A (en) * 1964-02-03 1965-07-06 Angela Evalina Lincoln Scaffold structure
US4382571A (en) * 1980-12-22 1983-05-10 Horen David J Scaffold bracket and hanger therefor
US4611784A (en) * 1985-01-10 1986-09-16 Harsco Corporation Safety lock for jump scaffolding
US4869451A (en) * 1987-05-14 1989-09-26 Gordon Richard A Window shelf for pets or flowers
US5182889A (en) * 1991-01-14 1993-02-02 Dennis Johnson Barrier system
US5865410A (en) * 1996-03-18 1999-02-02 Metal Products Specialists, Inc. Universal staging bracket
US20060027726A1 (en) * 2004-07-16 2006-02-09 Keith Jerry L Bracket and method for supporting a platform from concrete form tabs
GB2545477A (en) * 2015-12-17 2017-06-21 Airdecks Ltd Modular working platform

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US27441A (en) * 1860-03-13 Securing scaffolding-brackets to buildings
US528169A (en) * 1894-10-30 Staging-bracket
US1082448A (en) * 1910-10-19 1913-12-23 Emil Schaerer Bracket for staging and scaffolding.
CH84737A (en) * 1919-07-15 1920-08-16 Tosetti Joseph Scaffolding for facades.
US1478941A (en) * 1923-02-20 1923-12-25 Comeau Joseph Attachment for ladders
US1586421A (en) * 1925-07-21 1926-05-25 George H Frush Scaffold
US1587238A (en) * 1924-07-16 1926-06-01 Minzoni Alfonzo Movable bracket for flying scaffolding
US1829550A (en) * 1929-02-16 1931-10-27 Symons Clamp & Mfg Company Shore
FR755894A (en) * 1932-05-24 1933-12-01 flying scaffolding for carrying out plastering, painting, etc.
CH190069A (en) * 1936-09-07 1937-04-15 Meier Emil Detachable scaffolding for working on steep roofs.
DE664090C (en) * 1937-08-15 1938-08-19 Heinrich Busch Shelf support for cupboards
US2172796A (en) * 1937-07-02 1939-09-12 Krasin Wilhelm Putlog support
US2190748A (en) * 1937-01-13 1940-02-20 Chester I Williams Securing device for concrete forms
US2446093A (en) * 1947-02-10 1948-07-27 Edward J Lambert Hoist frame
GB658134A (en) * 1949-05-17 1951-10-03 Arthur James Burling Scaffold bracket
US2577979A (en) * 1948-01-28 1951-12-11 Reuben E Pierson Scaffold supporting structure
US2631352A (en) * 1950-09-08 1953-03-17 Chester I Williams Steel waler and clamping means
US2641429A (en) * 1949-05-17 1953-06-09 Frank J Kozak Bracket device
US2644219A (en) * 1950-06-22 1953-07-07 Chester L Williams Waler support
US2659125A (en) * 1950-06-22 1953-11-17 Chester I Williams Clamp bracket
US2702420A (en) * 1948-11-19 1955-02-22 Chester I Williams Combined form tie and waler support
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US2724165A (en) * 1955-11-22 williams
US528169A (en) * 1894-10-30 Staging-bracket
US27441A (en) * 1860-03-13 Securing scaffolding-brackets to buildings
US1082448A (en) * 1910-10-19 1913-12-23 Emil Schaerer Bracket for staging and scaffolding.
CH84737A (en) * 1919-07-15 1920-08-16 Tosetti Joseph Scaffolding for facades.
US1478941A (en) * 1923-02-20 1923-12-25 Comeau Joseph Attachment for ladders
US1587238A (en) * 1924-07-16 1926-06-01 Minzoni Alfonzo Movable bracket for flying scaffolding
US1586421A (en) * 1925-07-21 1926-05-25 George H Frush Scaffold
US1829550A (en) * 1929-02-16 1931-10-27 Symons Clamp & Mfg Company Shore
FR755894A (en) * 1932-05-24 1933-12-01 flying scaffolding for carrying out plastering, painting, etc.
CH190069A (en) * 1936-09-07 1937-04-15 Meier Emil Detachable scaffolding for working on steep roofs.
US2190748A (en) * 1937-01-13 1940-02-20 Chester I Williams Securing device for concrete forms
US2172796A (en) * 1937-07-02 1939-09-12 Krasin Wilhelm Putlog support
DE664090C (en) * 1937-08-15 1938-08-19 Heinrich Busch Shelf support for cupboards
US2446093A (en) * 1947-02-10 1948-07-27 Edward J Lambert Hoist frame
US2577979A (en) * 1948-01-28 1951-12-11 Reuben E Pierson Scaffold supporting structure
US2702420A (en) * 1948-11-19 1955-02-22 Chester I Williams Combined form tie and waler support
GB658134A (en) * 1949-05-17 1951-10-03 Arthur James Burling Scaffold bracket
US2641429A (en) * 1949-05-17 1953-06-09 Frank J Kozak Bracket device
US2644219A (en) * 1950-06-22 1953-07-07 Chester L Williams Waler support
US2659125A (en) * 1950-06-22 1953-11-17 Chester I Williams Clamp bracket
US2631352A (en) * 1950-09-08 1953-03-17 Chester I Williams Steel waler and clamping means

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044573A (en) * 1960-03-28 1962-07-17 James H Jackson Scaffold bracket
US3119590A (en) * 1963-07-01 1964-01-28 Superior Coucrete Accessories Adjustable, collapsible, and articulated bracket for supporting a concrete form for a bridge fascia
US3193233A (en) * 1964-02-03 1965-07-06 Angela Evalina Lincoln Scaffold structure
US4382571A (en) * 1980-12-22 1983-05-10 Horen David J Scaffold bracket and hanger therefor
US4611784A (en) * 1985-01-10 1986-09-16 Harsco Corporation Safety lock for jump scaffolding
US4869451A (en) * 1987-05-14 1989-09-26 Gordon Richard A Window shelf for pets or flowers
US5182889A (en) * 1991-01-14 1993-02-02 Dennis Johnson Barrier system
US5865410A (en) * 1996-03-18 1999-02-02 Metal Products Specialists, Inc. Universal staging bracket
US20060027726A1 (en) * 2004-07-16 2006-02-09 Keith Jerry L Bracket and method for supporting a platform from concrete form tabs
US20080202064A1 (en) * 2004-07-16 2008-08-28 Jerry Lee Keith Bracket and method for supoprting a platform from concrete form tabs
US7748195B2 (en) * 2004-07-16 2010-07-06 Jerry Lee Keith Bracket and method for supporting a platform from concrete form tabs
GB2545477A (en) * 2015-12-17 2017-06-21 Airdecks Ltd Modular working platform
GB2545477B (en) * 2015-12-17 2021-07-07 Airdecks Ltd Modular working platform

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