US262398A - gxraed - Google Patents

Description

(Nomoael.)

P. E. GRARD.

CURTAIN FIXTURE. No.262,398. Patented Aug. 8, 1882.

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CURTAIN- FIXTURE.

SPECIFICATION formingpart of Letters Patent No. 262,398, dated August 8, 1882.

Application filed April 12. 1882.

To all whom it may concern:

Be it known that I, PAUL E. GERARD, of New York, in the county ofNew York, State of New York, have invented certain new and useful Improvementsin Window-Shades; and I do hereby declare that the followingis at'ull, clear, and exact description of the invention.

The object of my invention is an improvement in wix'ldow-shades ou railroad-cars and steamboats, Src.

The invention relates .to a window-shade to stop at any place required in lowering and raising, and to be perfectly secure.

The invention consists of a connection, by means of a cord or chain and a conical spiral which is secured on the shade-roller, ofthe said roller with the bottom of the shade. The cord, being secured to the spiral pulley, winds and unwinds thereon, and, being attached to the lower end of the shade after passing around a pulley near the window-seat, follows the movement of the shade, with a tension thereon. The pulley on the roller being conical and spiral, said cord winds on the spiral with the same diameters as the shade upon the roller, and with the arrangement of a spring-connection of the lower pulley with the casing secures at all times the same tension on the cords and shade, thc whole being constructed in a manncr as hereinafter described and shown.

Reference heilig had to the accompanying` drawings, Figure 1 is a front elevation of my (No model.)

jilmprovement. Fig. 2 is the end elevation ot' Similar letters of reference occurring in both gures indicate like parts.

D is a shade and roller, made of any suitable material; A, a conical spiral on which is attached cord B at point G. Said cord is carried around a pulley, E, secured to a lixed point, T. In lowering the shade the cord winds on the conical spiral A, and vice versa, the tension of the cord being secured by a spring-connection of pulley E with the point T. As the roller winds or unwinds a greater length of the shade when the latter is nearly all wound upon tl@ roller than when nearly unwound, the consequent slacking or tightening is compensated by the varying diameters ofthe conical spiral, together with the springconnection of E with T.

Having described my invention, what I claim, and desire to secure by Letters Patent, is-

A shade-fixture consisting of the combination, with the shade and its roller, of a conical spiral, A, cord B, spring and pulley E, and fixed point T, arranged substantially as shown and described.

P. E. GRARD.

Witnesses:

`PATR-IGK GALLAGHER, GEORGE MULLE Y.

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