US2121704A

US2121704A - Scaffold bracket

Info

Publication number: US2121704A
Application number: US146918A
Authority: US
Inventors: Walter R Leeworthy
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-06-07
Filing date: 1937-06-07
Publication date: 1938-06-21
Anticipated expiration: 1955-06-21

Description

June 21; 1938. w. R. LE-EWORTHY S CAFFOLD BRACKET Filed June 7, 1937 5 W; m. m a W m m I I R ATTORNEYS Patented June 21, 1938 UNITED STATES PATENT OFFICE 1 Claim.

The object of the invention is to provide a bracket adapted for the use of supporting scaffolding where the latter is used in erection projects, so that the scaffold will be not only firmly 5 supported but provided with a guard rail as well; to provide a bracket which is susceptible of quick attachment when erected and which folds into compact form when not in use and being transported; and generally to provide a scaffold bracket which is of simple form and susceptible of cheap manufacture.

With this object in view, the invention consists in a construction and combination of parts of which a preferred embodiment is illustrated in the accompanying drawing but to which the invention is not to be restricted. Practical application may dictate certain changes or alterations and the right is claimed to make any which fall Within the spirit of the invention.

Figure 1 is a perspective view of the invention showing the manner in which it will be applied in operative position.

Figure 2 is an elevational View showing the bracket in folded form.

Figure 3 is a detail sectional view showing the manner of mounting the rail standard and the engagement of the brace with the floor rail.

Figure 4 is a detail sectional view showing the connection between the brace and the wall bar.

Figure 5 is a detail sectional view showing the floor rail and the anchor stud therefor.

The improved bracket comp-rises a wall bar ID at the upper end of which the floor rail H has a pivotal connection, the floor rail being supported in extended position by means of a brace i2 which is pivotally connected with the wall bar and detachably connected with the floor rail. The floor rail at the outer end is provided with a guard rail supporting standard 13.

The wall bar is made preferably of two angle bars Wu and lllb which are spaced to receive between them the brace I2 and the floor rail H, both the latter being preferably constructed of channel irons. A pivot-stud l4 passes through the angle bars Mia and H117 and through the floor rail and not only serves to assemble the angle bars into the unit constituting the wall bar but serves also as a pivotal mounting for the floor rail.

The floor rail is disposed with its web portion upwardly, so that the flanges depend and therefore embrace the anchor stud I5, the shank of which is made square to be received in the channel to which it is secured by the pivot stud M as well as a rivet H5. The anchor stud, where it extends beyond the extremity of the floor rail is threaded and receives a threaded collar I1 provided with a radial handle by which the collar may be rotated. In mounting the bracket, a hole is bored for the anchor stud in a post, or in a wall surface, and the anchor stud is inserted through the hole after which the collar I1 is attached and tightened by means of the handle thereon.

The pivot stud I4 is at the upper end of the wall bar, while the pivotal mounting for the brace is adjacent the lower end of said bar, this pivotal mounting consisting of a pivot stud I8 spanning the two angle irons constituting the wall bar and passing loosely through the flanges of the brace I2. At the remote end from its pivotal mounting, the flanges of the brace are cut away and the web portion is bent inwardly to provide a lock tongue I9 which passes in between the stud 2i! and the web of the floor rail when the brace is in supporting position for the floor rail, the ends of the flanges abutting the stud laterally thereof.

The guard rail stud is formed with an angular lower end 2| and it has a pivotal mounting on the stud 22 at the end of the floor rail remote from the anchor stud. The guard rail stud can thus swing down on the floor rail but when raised into a position at right angles tothe floor rail, its angular end abuts the under edges of the flanges of the floor rail and precludes swinging movement beyond the right angular position. The guard rail standard is releasably secured in this upright position by an appropriate locking device, such as a pin 23 inserted through appropriate openings in the angular end of the guard rail standard and in the flanges of the floor rail. To prevent loss, the pin 23 is attached to the floor rail by means of a chain 24'.

By making the wall rail of two elements, such as angle irons I [la and lb, it is adapted for seating against the round surface of a post where the anchor stud is passed through a diametrical hole .in the post. This arrangement prevents the bracket swinging on the anchor stud l as a pivot. Where the bracket is mounted on a flat wall, any appropriate means can be employed to prevent such swinging movement, such as a nail or other device driven into the wall between the two angle bars Illa and lb.

In extended position, the parts are arranged as shown in Figure 1, but when not in use, the device may be folded up as illustrated in Figure 2, the withdrawal of the pin 23 permitting the guard rail standard to be swung down on top of the floor rail and the slight raising of the latter disengaging the floor rail from the tongue I9. The floor rail may then be swung down against the wall bar and the brace swung under and over against the opposite face of the wall bar as clearly shown in Figure 2.

Of course, in use, boards or planks are placed on the floor rail and secured to the latter by fasteners passed through openings 25, guard rails 26 being attached to the standard I3 by similar fasteners passing through the openings 27.

Theinvention having been described, what is claimed as new and useful is:

A scaffold bracket comprising a wall bar, a floor rail having a pivotal mounting with the wall bar at the upper end, a brace pivotally connected with the wall bar adjacent the lower end of the latter and having a releasable interlocking connection with the floor rail, an anchor stud secured to the floor rail, and a guard rail standard having a pivotal mounting with the floor rail at the end remote from the wall bar and means for releasably securing it in a position at right angles to the floor rail, the guard rail standard being formed with an angular end abutting the underface of the floor rail when the standard is in vertical position and the releasable securing means consisting of a pin passing through registering holes in the angular end of the guard rail standard and in the floor rail when the former is in vertical position.

WALTER R. LEEWORTHY.