US1623892A - Scaffold shoe - Google Patents

Description

Patented Apr. 5, 1927.

UNITED STATES PATENT OFFICE.

LEONARD SOBRAY, OF NEW YORK, N. Y.

SCAFFOLD SHOE.

Application filed October 11, 1926. Serial No. 140,900.

This invention relates to improvel'ncnts in scaffold shoes and has particular' reference for use in connection with a brick wall.

The primary object of the invention is the provision of a shoe or hanger for supporting one end of a transverse beam or plank of a scaffold against a brick wall to dispense with the practice of driving nails into a. wall ausing marring of the same and which nails easily pull loose and endanger the lives of those supported by the scaffold.

Another object of the invention resides in a scaold shoe which is adapted to be securely anchored between the meeting ends of two bricks at suitable points in the brick wall, and which may be removed from the wall when desired for furtner use.

A still further object is to provide a scaffold shoe which is simple in construction, inexpensive of manufacture and 'strong and durable for the purposel intended.

With these and other objects in view, the invention resides in certain novel construction and combination and arrangement of parts, the essential features of which are hereinafter fully described, are particularly pointed out in the appended claim, and are illustrated in the accompanying drawing, in which Figure 1 is a perspective view of a portion of a brick wall with my improved scaffold shoe in position thereon.

Figure 2 is a vertical sectional view therethrough.

Figure 3 is a vertical transverse sectional view on the line 3-3 of Figure 1.

Referring more particularly to the drawing, the reference numeral 10 designates my improved scaffold shoe in its entirety, which includes hanger means 11 and anchor means 12.

The hanger means 11 comprises a single piece of strap iron, bent into relatively U- shape, the free ends of which are bent inwardly as at 13 and thence upwardly to provide spaced parallel flanges 14.

The anchor means 12 also comprises a single piece of fiat material in the shape of an arm 15, one end of which is interposed between the fianges 14 and secured therebetween by rivets or like fastening elements 16. The other end of the arm has its under edge provided with a tooth or shoulder 17 for a purpose to be hereinafter mentioned.

In the drawing, I have shown the shoe in the usual way, that is, by vertical connection with a brick wall structure A an d a scaffold structure B. The shoe is supported from the brick wall structure by inserting the arm 15 between the adjacent ends of two horizontally disposed bricks, so that 'the tooth or shoulder 17 engages behind the brick of the next lower row as shown in Figure 2 of the drawing. When in position, the hanger 11 is suspended from the face of the wall structure and lies flat thereagainst to receive the inner end of the transverse beam or plank C of the scaffold structure B. '"l he other end of the plank C is supported in beams D to which the planks are nailed. For preventing the accidental separation of the plank C from the hanger, I provide openings 18 in the opposite walls of the same through which removable fastening elements in the nature of bolts or nails 19 may be inserted.

When it is desired to remove the scaffold from the wall structure, the nails 19 are removed and the scaffold moved outwardly so that the plank C is clear of the hanger. The shoe may then be withdrawn from between the bricks and the space formerly occupied by the anchor arm filled with mortar.

While I have shown and described what I consider to be the most desirable embodiment of my invention, it is obvious that many of the details may be varied without in any way departing from the spirit of my invention, and I therefore do not limit myself to the exact details of construction herein set forth nor to anything less than the whole of my invention limited only by the appended claim.

. What is claimed as new is A scaffold shoe comprising a hanger formed of a single piece of strap metal bent into substantially U- hape, the free ends of said strap metal being bent inwardly and thence parallel to the side walls of the hanger to provide spaced flanges, an anchor arm having one of its ends fixedly secured between said flanges, and a tooth provided on the free end of said anchor arm, the side walls of said hanger having aligned openings provided therein for the reception of a removable element for locking one end of a beam within said hanger.

In testimony whereof I hereby signature. Y

LEONARD SOBRAY.

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