US146104A

US146104A - Improvement in drop-lights and hangers

Info

Publication number: US146104A
Authority: US
Publication date: 1873-12-30
Anticipated expiration: 1890-12-30

Description

PATENT l FFICE.

I/VILLIAM STAEHLEN, OF BROOKLYN, E. D., NEVSI YORK, ASSIGNOR TO CHARLES F. A. HINRIOHS, OF SAME PLAGE.

IMPROVEMENT IN DROP-LIGHTS AND HANGERS.

Specification forming part of Letters Patent No. 146,104, dated December 30, 1873; application-tiled October 11, 1873.

To all whom it may concern:

Be it known that I, WILLIAM STAEHLEN, of Brooklyn, E. D., in the county of Kings and State of New York, have invented an Improvement in Extension Hanging Stand ards for Lamps and other Articles, of which the following is aspeciiication:

The object of this invention is to sustain a lamp, gasjet, or other article in any position to which it maybe moved, either up or down.

Tubes have been made for this purpose, one

V"sliding within the other, and sustained by friction; but the surfaces in contact, being smooth, rapidly cease to furnish the required friction. I make use of a spring-pawl constructed in such a manner that it causes very little friction or resistance as the lower part of the standard is pushed up, and increases the friction and clamping action as the standard is drawn down; and, by employing depressions in connection with this clamping pawl, the standard is adapted to sustain considerable Weight at any point to which it may be raised or drawn down. Y

Iii the drawing, Figure 1 is a vertical section ofthe hanging standard, and Fig. 2 is a sectional plan at the line x a'.

The tube a is attached to the ceiling b, or to a gas-pipe, by a T, in any convenient manner. Within this tubular standard a is the extension d, made as a tube or rod, with a groove in one side longitudinally; and where this standard is to be used for gas, the interior of the tube a is to be smooth, and a packing provided at the upper end of the tube d, as seen at e. At the lower end of the standard d is to be a hook or other device for attaching the article to be suspended. I have shown the socket o to receive the tube r, that extends from a reservoir, s, to the burner wellor tube t, as in my Patent N o. 125,852. In the ornament Z, at the lower end ofthe tube a, there is a coiled lever spring, n, one arm of which is attached to the ornament Z, or the standard a, and the other end passes through a slot in the tube a, and` enters the longitudinal groove in the tube or rod d. This prevents said tube or rod d re-` friction, acting against tlie moving end of the` springs, moves that end and winds up the spring, increasing its power and frictional pressure against the side of d; but, when the standard tube or rod cl ispushed up, the spring is partially unwound, and its pressure relieved,

so that the standard can be pushed up freely, but it requires greater force to draw it down. Hence, with a lamp or other weight, the force required to move the same either way is nearly i equal.

By making depressions or cavities, c, inthe bottom of the groove in the standard d, for the end of the spring, `the resistance in drawing the same down will be increased.

This standard may be inverted and form a support for articles in show-windows, &c., the position of the spring n, relatively to the standard d, being also inverted.

I claim as my inventionl. The spring nz, in combination with the grooved standard d and tube a, substantially as and, for the purposes set forth.

2. The spring n, in combination withthe grooved standard el, with depressions, the tube 4 a, and the packing e, substantially as set forth.

Signed by me this 7th day of October, A.

- y w. sTAuHLuN.

Witnesses:

Gno. T. PINCKNEY, (Enns. H. SMITH.