US170277A - Improvement in curtain-fixtures - Google Patents

Description

NI'IED STATES PATENT OFFICE.

EZRA B. LAKE, OF TOMS RIVER, NEW JERSEY.

IMPROVEMENT IN CURTAIN-FIXTURES.

Specification forming part of Letters Patent N 0. 170,277, dated November 23, 1875; application filed v 1 December 14, 1874.

To all whom it may concern:

Be it known that I, EZRA B. LAKE, of Toms River, in the county of Ocean and State ot'New Jersey, have invented certain new and useful Improvements in Curtain Fixtures; 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 roller of a self-lowering weighted curtain of asinglecord pulley, a suitable single cord, and a pawl pivoted to the head of the pulley, and engaging with a stop projecting from one of the roller-brackets.

Referrin g to the accompanying drawings illustrating my invention, A designates an ordinary cylindrical curtain-roller, supported by brackets B B, which may be attached to the window-frame or to the upper sash. U is the curtain, having its lower end weigh ed by means of a sufficiently heavy wooden or iron bar, A. which will cause the curtain to unroll and descend when theroller is free to turn. D designates a single-cord pulley secured to one end of the curtain-roller, and D a single cord secured at one end to the hub of said pulley, which should have an eye, d, for the reception of said cord, so that, according as the roller turns to unroll the curtain, said cord will be wound upon the hub. The curtain is raised t by merely drawing upon the cord, which, to unwind, turns the pulley and curtain. The retention of the curtain at any desired height is effected by means of a pawl pivoted to the head of the pulley, and engaging with a stop projecting from the bracket B, or otherwise appropriately arranged. The pawl may be adapted to engage with the stop, under cen- -in movement by a pin, b

trifugal impulse, or otherwise, as may be desired. Itherefore do not limit my invention to the employment of any specific form of pawl, or any precise arrangement thereof.

Figs. 2, 3, 4, and 5 of the drawings illustrate various modifications of said pawl and stop, all of which are well adapted for use in connection with the weighted curtain and singlecord pulley. Fig. 2 shows a pawl, a, which is thrown outward, when the curtain descends rapidly, and catches upon a stop, 6, formed by a lug on the bracket. A book at c prevents the pawl from being thrown too far outward, said hook being brought against the journal of the pulley. The pawl b, in Fig. 3, engages with a stop, 6 only when the curtain is lowered slowly. A pin, b, projecting from the pulley-head prevents the pawl from being swung outward by centrifugal force. Fig. 4 shows a pawl, b operating centritugally, but limited Fig. 5 shows a pawl, g,having a weighted tail-piece, 9 which, being swung outward centrifugally, causes the head g to engage with a stop, 9 near the journal of the pulley.

I am well aware that the several essential features of my invention have heretofore been used. I therefore do not claim, broadly, a weighted curtain, nor a single-cord pulley; nor the combination, broadly, of a pawl to arrest the motion of a curtain-roller with the pulley or weighted roller separately. Furthermore, I specially disclaim the devices shown in Patent No.'126,666; but

What I claim as my invention, and desire to secure by Letters Patent,'is

The weighted curtain, single-cord pulley, single cord, pawl, and stop combined, said pawl being pivoted to the cord-pulley, substantially as described, and for the purpose specified.

In testimony that I claim the foregoing I have hereunto set my hand this 14th day of November, 1874..

SILvnsTER MoKELvY, JAMES W. HAGAMAN.

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