US1927908A - Scaffold - Google Patents

Description

Sept. 26, 1933. c wE 1,927,908

SCAFFOLD Filed March 2, 1932 2 Sheets-Sheet l INVENTOR.

i" By HnRvEY 6- WERTZ ATTORNEY.

H. C. WERTZ Sept. 26, 1933.

SCAFFOLD Filed March 2, 1932 Z-Sheets-Sheet 2 iiluunnuliiui INVENTOR. 3 Mi y HHR VEY G- WERTZ ATTORNEY.

Patented Sept. 26, 1933 UNITED STATES SCAFFOLD Harvey C. Wertz, Beaver Falls, Pa., assignor to i E. H. McOiure, East Palestine, Ohio Application March 2, 1932. Serial No. 596,191

6 Claims.

My invention relates to improvements in scarfolds more especially adapted for use by carpenters and bricklayers.

One of the objects of the invention is to provide a scaffold composed of a minimum number of posts, and of rigid and strong construction.

Another object of the invention is to provide a scaffold which can be readily attached to or detached from a brick or frame structure.

Another object of the invention is to provide a scaffold which can be readily attached to the wall 'of a building and which is capable of slight adjustment with respect to the face of the wall after attachment thereto. 1 Other and more specific objects and advantages of the invention will be more apparent as the specification is considered in connection with the accompanying drawings, in which Fig. 1 is an elevational view of my improved scaffold, shown attached to the wall of a building. Fig. 2 is a plan view-of Figure 1 with the cross braces omitted. Fig. 3 is a detail view showing the method of attaching the scaffold to a shingled wall, and Fig. 4 is a perspective View of one end of the scaffold, shown attached to the wall studding of a building before the sheathing and brick have been put in place. Fig. 5 is an end View of the scaffold shown attached to a brick wall and Fig. 6 is an end view of the scaffold showing the same attached to the sheathing of a plaster coated wall.

Referring more particularly to the drawings, 1 denotes a pair of spaced uprights or standards of any suitable dimensions and material, preferably two by four timbers, and which constitute the front of the scaffold. Crossed braces 2 extending from the bottom of one standard to a point adjacent the top of the other standard brace these members against movement toward or away from each other. A heavy board 3 or other support member connected at opposite ends to the inner faces of the standards, as by nails 20, supports the front ends of a plurality of short planks 4, which constitute the floor or platform of the scaffold. This board 3 also supplements the crossed braces 2 in securing the standards together and in bracing them against swaying movement.

A pair of channel beams 5, are connected at their outer ends to the outer side faces of the standards 1, as by bolts 6, which extend through keyhole slots 11 formed in the channels. These channels slidably support saddle members "I,

longitudinally disposed support member 8, such as a two by four timber. The saddles 7 are substantially U-shaped, and the flanges 9 thereof are formed with registering openings 10, of angular shape, through which thechannel beams 5 are sleeved flush with the top edge of the planking support 8. The rear or inner ends of the short floor planks 4 are supported by the member 8, and these planks are preferably of such thickness that their top faces will be flush with the top of the channel members 5, thus eliminating the danger of workmen tripping over thelatter. The inner ends of the channel beams 5 are connected in various waysv to 'the frame or Walls of buildings of different kinds by, means of a pair of brackets 25. These brackets comprise a body member 30, of angle iron construction adapted to be connected to the wall studding 1 2 of a building, by means of bolts 13, as illustrated, in Figures 1, 2, 4, and 5. In these instances the connection is made to the studding from the inside of the sheathing 14, whereas in Figures 3 and 6, the brackets are secured to the studding from the outside of the sheathing by meansof nails 15, which pass through the openings 16 in the brackets and thence through the sheathing 14 and into the studding. i

The body member 30 of each bracket 25 has an arm 17 which is connected to and pivotally supports the inner end of its respective channel member 5. These arms are formed with a series of openings 18 therethrough which receive the lower ends of vertically disposed headed bolts 19, which extend through the flanges of the channels and loosely engage in these openings 18, cotter pins 31 being employed to prevent acci-' dental displacement of the bolts. Thus, the scaffold can be adjusted toward or away from the building according to the character of wall being I erected. Where a brick wall is being built, the scaffold must be spaced sufliciently from the sheathing to' accommodate the brick, and consequently the bolts 19 will be inserted in the outermost openings 18 in arms 17. It will also be noted that the saddles 'l'can be readily slid along the channel members 5 to adjust the support member or beam 8 to planks of different lengths.

In use on irregularly shaped walls, or where it is desirable that the scaffold be arranged in front of one corner of a building in course of erection, the pivotal connection between the channels 5" and the arms 17 permit of the necessary slight adjustment.

To dismantle the scaffold it is merely necessary to lift the planking 4 from its supports 3 and. 8, slide the latter out of the stirrup 7 and remove nails 20 from the former. Channel members 5 can be lifted off headed bolts 6 after the channels have been disconnected from the brackets 25 by removal of bolts 19. When bolts or nails 13, which secure the brackets to studding 12 have been withdrawn, or when the brackets have been lifted off the nails or other fastening means 15, employed to secure the brackets to the sheath ing, the brackets can be readily removed. Where the arms 1'? project through the sheathing l4, and courses of brick 21, illustrated in Figure 4, the arms can readily be withdrawn from between the courses without damage either to the brickwork or to the sheathing. It will be understood that the scaffolding is erected and the brackets attached to the studding before the sheathing has been applied and the brick work has been erected, and that the platform will be elevated from time to time as the work progresses. The brackets are always so positioned that the arms 17 thereof will rest upon one course of brick and are of such thickness that they occupy no more space, in a vertical direction, thanthe cement 22. Consequently when the arms 17 are withdrawn from between two layers or courses of brick, it is merel necessary to insert a little cement filling to cover up the spaces previously occupied by the arms.

What I claim, is:

1. A scafiold, comprising spaced standards, a support member connecting said standards together, a pair'of beams detachably connected at their outer ends to said standards, means adapted to be attached to a building for detachably supporting the other ends of said beams, a saddle support member connecting said standards to-- gether, a pair ofbeams pivotally connected at their outer ends to said standards, means adapted to be secured to a building for pivotally supporting the other ends of said beams, a saddle neath the other end of said beams, and planking supported at its ends on said support members flush with the top of said beams. f

a. A scaffold comprising spaced beams, standards for supporting the outer ends of said beams, flooring positioned between said beams and flush with the top thereof, means secured to said standards for supporting the outer end of the flooring, means carried by the beams for supporting the inner end ofrthe flooring, and means adapted to be attached to a building for pivotally supporting the inner ends of the beams.

5. A scaffold comprising spaced horizontally disposed beams, standards for supporting the outer ends of the beams, means adapted to be attached-to a building for pivotally and adjustablysupporting the other ends of said beams, and means carried by said beams and means secured to the standards for supporting a flooring.

6. A scafford, comprising spaced horizontally disposed beams, standards for supporting the outer ends of the beams, means supported by' said beams and means secured to said standards for supporting planking thereon, a plurality'of brackets, one for each beam, means for securing said brackets to the studding of a building, said brackets having outwardly extending armsfixed thereto, and means foradjustably connecting HARVEY "c. WERTZ.

Images