US515738A

US515738A - Scaffold

Info

Publication number: US515738A
Authority: US
Publication date: 1894-03-06
Anticipated expiration: 1911-03-06

Description

(No Model.)

E. BONNLENDER. VSGAPPOLD.

Patented Mar. 6, 1894.

UNITED STATES PATENT EEICE.

EGIDIUS BONNLENDER, OF BEAVERVDAM, WISCONSIN..

SCAFFOLD.

SPECIFICATION forming partof Letters Patent No 515,738, dated March 6, 1894.

Application filed May 13, 1893. Serial No. 474.049. (No model.)

To @ZZ wiz/mn it may concern:

Be it known that l, EGIDIUs BONNLENDER, of Beaver Dam, in the county of Dodge and State of lfVisconsin, have invented a new and useful Improvement in Scaffolds, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

My invention has relation to improvements in builders scaiolds, particularly adapted for use during the progress of building, for the support of workmen and material.

The object of the invention is the provision of a simple device lwhereby the scaffold is readily adjusted in place, and as readily removed with little or no danger of its accidental dislodgment during its temporary adjustment to a building.

W'ith this object in view the invention consists in the improved construction and combination of parts as hereinafter more fully set forth.

In theaccompanyingdrawings,Figure l, is a perspective view of my improved device, showing the scaffold properly adjusted in place to a fragment of a building, and Fig. 2, is a detail perspective view of the invention proper.

Like letters of reference denote like parts in both figures of the drawings. y

Referring to the drawings, the invention proper consists of a casting or angular bracket comprising a vertical arm A, a horizontal arm A and an angular tang or tongue A2, projecting from the angle or corner formed by the junction of the arms A and A'. .These parts are preferably formed integral or castin one plece.

The frame work of the scaffold to which the device is applied may be of any well known or preferred form capable of the proper adjustment thereto of the device.

In the drawingsl have illustrated one end of a scaiold frame consisting of an upright standard B, a horizontal beam C for supporting one end of the platform, and an oblique brace D.

The arms A and A of the angular bracket are secured respectively to the upright and horizontal beam of the scaold by means of screws, or equivalent devices, being preferably set in recesses therefor in the parts referred to of the scaold, so as to be brought flush with the surfaces of these parts.

The letter E indicates a fragment of the sheathing or other portion of a building, and for the adjustment thereto of my invention it is necessary to provide therein alhole F for the reception of the tang or tongue. The vertical portion of this tang or tongue is rst brought to a horizontal position which admits of it being readily passed through the aperture in the sheathing. The end section of the scaold can then be readily broughtdown so as to assume the position shown in Fig. l. This arrangement necessarily brings the vertical portion of the tang to the rear of the sheathing, and the horizontal portion resting and seated in the aperture, while the vertical portion of the scaffold frame will bear against the sheathing. for the retention of the scaiold in place is formed.

lf desired the lower end of the upright of the scaffold may be provided with a pin G to take into the sheathing and obviate any dan- In this manner asecure lock Y ger of the displacement of the lower portion i of the scaffold. This feature, however, is not absolutely essential to my invention, as practice has demonstrated that successful results are attainable without the employmentof this eXtra part.

Having thus described my invention, what I claim, and desire to secure by Letters Patent isl. As an improved article of manufacture, a casting or bracket for attachment to scaffold frames, consisting of a vertical and a horizontal member, said parts formed at their angle witha tang, which projects out, first, horizontally, and then upward at right angles, substantially as set forth.

2. The combination, with a scaffold frame, having a vertical anda horizontal portion, of an angular bracket or casting, comprising a vertical and a horizontal arm,secured, respect-v ively, to the vertical and horizontal portions of the frame, said bracket or casting formed at its angle with a tang which projects out, first, horizontally and then upward at right angles, said tang adapted to be passed through an aperture in the sheathing of a building, so that the vertical portion thereof will lie back of said sheathing, and the horizontal IOO 1o ward at right angles, and adapted to be passed through an aperture in the sheathing of a building, so that the vertical portion thereof will lie back of said sheathing and the horizontal portion will be seated and supported 'in the aperture, and the Vertical portion of the scaffold frame will bear against the sheathing, substantially as set forth.

In testimony whereof I aiix my signature in presence of two Witnesses.

EGIDIUS BONNLENDER.

Witnesses:

J. E. CoNNoRs, JOHN KELLY.