US697447A - Portable scaffold. - Google Patents

Description

Patented Apr. 15', I902.

E. CHARTBAND.

PORTABLE SCAFFOLD.

(Application filed Jan. 27, 1902.) (No Model.)

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v NVENTOH ATTOHNEYJ- UNITED STATES EDMUND CHARTRAND,

PATENT OFFICE.

OF CHICAGO, ILLINOIS.

PORTABLE SCAFFOLD.

SPECIFICATION forming part of Letters Patent No. 697,447, dated. April 15, 1902.

Application filed January 27,1902. Serial No. 91 356. (No model.)

To all whom it may concern:

Be it known that I, EDMUND CHARTRAND, a citizen of the United States, residing at Ohicago,.in the county of Cook and State of Illi nois,have invented certain new and useful Improvements in Portable Scaifolds; 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,reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specificatIOIL This invention relates to portable scaffolds.

The object isto construct an improved scafiold which can be readily put up or taken down and extended to any ordinary height.

A further object is to provide improved couplings,and brackets to securely fasten the parts together, so as to form a substantial and safe structure for the purpose for which scaffolds are used.

Particularly an improved bracket is provided to attach the standards and ledgers together.

In the accompanying drawings, Figure 1 is a perspective View of the assembled scaffold. Fig. 2 is a side view of one of the brackets.

Referring specifically to the drawings, 7 indicates the standards, joined end to end by couplings 6, which are sleeve-shaped to receive the ends of the standards. The brackets to sustain the ledgers comprise a sleeve 8, which slips over the standard, and projecting upwardly from the sleeve are two opposite arms, one of which (indicated at 9) is flush with the inner surface of the sleeve, so that it lies against the side of the standard. The other (indicated at 10) is oifset from the sleeve-opening, so that a shoulder 10 is boards '13.

formed upon which the ledger 12 rests, confined between the arm and the standard. A socket 12 is attached to the ledgemand the arm 10 enters said socket. Thereby the ledger is securely held in position to receive the floor= The couplings 6 rest upon the ledgers, so they will not slip below the joint of the standards, and the brackets are supported by pins 14, putinto holes in the standard.

Horizontal braces 15 and diagonal braces 16 connect and support the standard, to which they are detachably secured by bolts and thumb nuts, (indicated at 17.) The couplings, and brackets are preferably cast of iron or other metal.

By the construction indicated a strong and safe scaffold may be readily erected. The parts are few and interchangeable, so that from a supply on hand a scaffold of any de= sired height may be quickly built;

'What I claim is 1. In a scafiold, the combination of a standard, a sleeve thereon having an arm projecting upwardly and spaced from the standard, anda ledger supported upon the sleeve having a socket receiving said arm.

2. In a scaffold,the combination with stand ards, of a bracket on a standard having an upwardlyextending arm spaced from the standard, a ledger supported on the bracket between the arm and the standard having a socket receiving said arm, and a sleeve-c0upling for the standards supported by the ledger.

In testimony whereof I affix my signature Witnesses:

NELLIE FELTSKOG, HARRY G. BATCHELOR.

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