US577222A

US577222A - Corner scaffold-bracket

Info

Publication number: US577222A
Authority: US
Publication date: 1897-02-16
Anticipated expiration: 1914-02-16

Description

(No Model.)

2 S. F. WRAY. CORNER SOAFFOLD BRACKET.

N0. 577,222. Patented Feb. 16, 1897.

Ulil Hill 2 5444mm wimaooe/o J 2 e @W/M/ I &JZ/% W I I Qbtomwg UNITED STATES PATENT I EFIC SAMUEL F. WRAY, OF ELWOOD, INDIANA.

CORNER SCAFFOLD-BRACKET.

SPECIFICATION forming part of Letters Patent NO. 577,222, dated February 16, 1897. Application filed May 22, 1896. $eria1 ITO. 592,566. (No model.)

To all whom, it may OOILOGY'VL.

Be it known that I, SAMUEL F. WRAY, a citizen of the United States, residing at Elwood, in the county of Madison and State of Indiana, have invented certain new and useful Improvements in Corner Scaffold-Brackets; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates 'to corner scaffoldbrackets.

The object of the present invention is the provision of an improved, cheapened, and

simplified corner-bracket of the class described which shall be adapted for quick attachment and removal and afford a stron g. and durable support.

The invention consists of certain novel features and combinations, as will appear more fully hereinafter.

In the accompanying drawings, Figure 1 represents my improved corner-bracket in use; Fig. 2, a top perspective view with one of the brackets removed from the angle-iron; Fig. 3, a side elevation of one of the brackets, and Fig. 4 a view of my improved lag-screw.

A represents the corner-post of the scaffold, and B the cross-braces. The angle-iron 1 is preferably of half-inch bar-iron and provided at its angle with a hole 2, through which passes my improved lag-screw, to be described later on. The arms of this angle-iron are provided with vertically-disposed pockets 3, formed by a bent-up strap of metal 4, suitably fastened in position. If preferred, these pockets might be formed by bending up the arm of' the an gle-iron.

The rear face of the triangular wooden bracket 5 is provided with a hook 6, which is adapted to snugly fit the pocket 3 when the bracket is in position.

My improved lag-screw for fastening the angle-iron in position consists of threaded body or shank 7, which is provided with a longhead 8, forming, as it were, a crank,which extends at right angles to the shank and is provided with a crank-handle 9. After the angle-iron has been placed in position the lagscrew is inserted in the hole 2 and driven partially in the corner-post A. It may then be screwed into proper position by turning the crank-handle. The hooks on the brackets are next inserted in their pockets and the crossbraces properly lashed or fastened in position on the shelves of the brackets.

Having thus described the invention, What is claimed as new is-- l. Acorner-bracket for scafiolding comprisin g the combination of an an gle-iron provided with an aperture at its bend, .brackets connected to the portions of the angle-iron, and a lag-screw adapted for reception in the aperture of the angle-iron.

2. The combination with the corner-post of a scaffold, of a bracket therefor comprising the combination of an angle-iron, brackets connected to the angle-iron, and a lag-screw provided with a crank and adapted to hold the angle-iron in position, substantially asdescribed.

3. A corner-bracket for scaffolding, comprising the combination of an angle-iron, bent-up metal straps connected to the portions of the angle-iron and which constitute pockets in connection therewith, brackets provided with hooks adapted for reception in the pockets, and means for fastening the angle-iron in position.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

SAMUEL F. WRAY. Witnesses:

HIRAM LABOYTEAUX, G. D. WILLIAMS.