US74508A - coens - Google Patents

Description

JAMES M, GORNSQGF BLACK ROCK,` NEW YORK'.

Letters Patent No. 74,508, dated February 18, 1868.

IMPEOVBD CURTAIN-FIXTURE.

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TO ALL WHOM IT MAY ACONCERN:

Be it known rthat 1I. CORNS, of Black RockQ-in the county of Erie, and State ot' New York, have invented a certain new and useful Improvement in Curtain-Fixtures; and I do hereby declare that the following is-,a full and exact description thereof, reference being had to the accompanying drawing, in whieh Figure I is va fron't elevation of a curtain provided with my improved fixture. i

Figure II is a sectional plan on line x a", Fig. A

Figure III is a face View of the corrugated disk attached to the end of the roller.

Like letters of reference indicate similar parts in all the figures.

Theinventiop consists'of a radially-corrugated disk attached to the end of the curtain-roller, in combination with the similarly-formed contiguous face of the bearing at that end,'a spiral spring and adjusting-nut,

the curtain being sustained at any desired positionby the friction between the two corrugated surfaces, which.

is regulated by means of said springs and nut, substantially as hereinafter shown and described.

In the drawings, A'represents a shade or curtain; B,'the roller at the top, around which the curtain is rolled; c, the hearing; fi', the pulley; .and e, the cord at the one end, by which the curtain is raised or rolled up... At the opposite end, `j' represents the other bearing or support for the roller, which bearing is made with a radially-corrugated roughened face o`n the side contiguous to asimilarly-formed face or disk q attached to the end of the roller. The journal of the. roller at this end extends beyondthe hearing a short` distande to a'ord space for a spiral spring, Il, around the journal.` This spring is compressed by means of a nut, z', screwing on the end of the journal'7 which -serves to draw the disk y attached to the roller with greater or less force aga-inst the eontiguons'face ofthe bearingf, against which the inner 4end of the spring presses. By this means the friction between the two roughened rsurfaces can he easily regulated, which should be suicientto prevent the weight of the shade causing disk g to turn and unroll the curtain. i

The curtain is readily raised by pulling on cord e, which passes over pulley d. ,It is lowered with equal .facility by simply pulling down on the curtain, or tassel attached thereto, with sufficient force to overcome the friction between the faces off y, which can'be so regulated by the spring and nut as to require but the least exertion. l l

The great advantage of my improvement is the ease with which a curtain provided with it can be raised and lowered. It also dispenses with the necessity of attaching a. xturetothe side of the window-casing, which always presents a more or less objectionable appearance. It is of a durable nature, and not likelyfto get out of order, as is the ease with most of the other fixtures inV use.

What I claim my invention, and desire-to sedare by Letters Patent, is-

[lhe radiali corrucated disk in combination with the-similarl corrufvated beariiw f s ral s rinrr h i y o g1v y a o 7 p p p nut z', and roller i3, arranged and operating suhstantially'jn the manner and for the purpose set forth.

- JAMES M. CORNS.

Witnesses:

W. J. CHAMBERLAIN, V. H. BECKER.

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