US140858A - Improvement in adjustable scaffolds - Google Patents

Description

J.. s.`T|LLEY.

Adjustahlecaffoids.

No. 140,858. Patentedmywnaa,

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JOHN S. TILLEY, OF WEST TROY, YORK.

IMPROVEMENT IN ADJUSTABLE SCAFFOLDS.

Specification forming part of Letters Patent No. 140,858, dated July 15, 1873; application filed June 7, 1873.

To all whom it may concern:

Beit known that I, JOHN S. TILLEY, of West Troy, in the county of Albany and State of New York, have invented a new and Improved Adjustable Scaffold, of which the following is a specification:

For adjusting the scaffolds of wall-plasterers and ceiling-decorators, high or low, according to the height of the room, I propose to have short trestle-heads mounted on, say, three legs, with a vertically-adjusting standard in each head having afastening to hold it at any height, and having a couple of plates clamped to it at each side near the top, so that they can be readily adjusted to form, with the standard, a T-head whereon the scaffold-boards may rest ilatwise, or they may be turned up endwise and project above the end of the standard so as to retain a plank placed edgewise on the top of the standard. When, as in the case of decorating ceilings, it is desirable to build broad scaifolds by laying the scaiiold boards 0r planks, extending from one trestle-head to another, and arranged edgewise to support the scaffold-boards.

In order to pack the benches'compactly and economically, in regard to space for shipping or storing them, I propose to have the legs jointed to them so as to fold over on the sides in a compact form when not in use, and I arl range them, in connection with notches or shoulders on the heads, so that when in use the ends of the legs bear against the walls or shoulders of the notches, and so transmit the force directly from one to the other without injury to the joints.

` Figure 1 is -a side elevation of one of my improved adjustable scai'old-trestles; Fig. 2 is a sectional elevation; and Fig. 3 is a plan view of a couple of the trestles with the legs folded together and packed for shipping.

A is the head of the trestles. l?? are the legs, which are hinged to it at O, and seated at the upper ends innotches in the sides of the body the legs.

against shoulders D, as aforesaid, and they are connected below the front by a hook, E,

and staples to prevent them from slipping and spreading apart at the lower end on the floor.

Any other fastening may be used for this purpose that will answer.

F is the vertically-adjustable standard, arranged in the head A, and having pin-holes G tb hold it at any' height by a pin, ornotches H to be held by a projection, 1, on one of J represents the 'plates clamped to the sides near the head 'by a bolt, K, and thumb-nut L. These plates are to be adjusted horizontally, as shown in Fig. l, to receive the scaiiiold-planks M on them atwise when only anarrow scaffold is wanted, as when decorating walls. They are to be adjusted. vertically, as in Fig. 2, when a wide scaffold is wanted, as when decorating a ceiling, to receive a plank, N, edgewise between them, the plank being thus supported at each end and supporting the scaffold-planks O on its upper edges. v

The trestles are arranged in pairs, as in Fig. 3, the side legs folded side by side, as seen at the top of the ligure, and the end legs folded against the ends, as seen thereat, in a compact way, so as to be economically packed in a case wherein the standards F and plates J, being removed fromy the bench-tops, can be placed alongside of the benches.

Having thus described my invention, I claim as new and desire to secure by Letters Pat-- entl. The combination of the vertically-adjustv able standards having the adjustable plates J with the trestlesA B, substantially as specified. 2. The heads A and legs B jointed together and arranged in relation to the shoulders D and the ends ofthe legs, as described.

' JNO. S. TILLEY.

Witnesses:

T. B. MosHER, U. SEDGWICK.

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