US72768A - Sylyania - Google Patents

Description

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HERMAN WooHnn ANH BIINHNDIKT antena, or PHILADELPHIA, PENN- SYLVANIA.

s Lewisham No. 72,768, ma Dembr 31, 1867.

IMPROVBD CURTAIN-FIXTURE.

T0 ALL l-VHOM IT MAY OOl'CElEtN:l

vBe it known that we, HERMAN Wocunn and BENENDIKT GEIGER, ot`- the city and county of Philadelphia, and State of Pennsylvania, have invented new ,and useful Improvements in Curtain-Fixtures; and wc do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, which are made a p'art of, this specification.

This invention consistsin the employment of a lcounterbalance-weight, which is attached to the cord by which the curtain is raised', and which, traversing a suitable vertical guide, rises and falls in a rectilinear path, as the curtain is lowered and raised, and serves to sustain the curtain in the desired position, and to assist in the elevation, thereof, as will be hereinafter explained. Y

Figure 1 is an interior elevation cfa,window-curtain, illustrating our invention.

Figure 2 is a similar view, illustrating a modification. v

Figure 3 is a horizontal secnion of the weight E and guide F, shown in tig. 1, the plane of section being indicated by the line :t x.

Similar letters ci' reference indicate correspondingl parts in the diiferent iigures.

In the drawings, A may represent the window-frame, A the window-curtain er shade, and B the upper journallcd roller, which rolls and unrolls the curtain in the act of raising and loweringl the same. C is the usual bottom stick, which keeps the curtain in its proper pendent and extended condition. That part,B, of the roller D, which serves as 'a pulley for the elevating-cord D, is considerably smaller in diameter than the body of the roller, in order to increase the speed of the latter. The upper end of the cord D is attached to one of the danges or rims b 6, which confine said cordupon the pulley B', upon which it is wound and unwound las the curtain is raised and vlowered. The lower end of the cord D'is attached to a counterbalance, E, which may be a. weighted ornamental slide, as shown invg.' 1, or a weighted tassel, as seen in fig. 2. In the illustration given in g. l, the'weight or counterbalance Eis fitted to slide vertically within a tubular guide, F, attached to the window-frame, and, as shown in iig; 2,-it is likewise confined to arectilinear vertical path, by sliding upon the rod F. In g. 2 a more favarablekdirection is given to the cord D, bythe employment ofthe small supplemental pulley Gr.

The operation is as follows: The weight E is suiiciently heavy to sustain the curtain at whatever degree of elevation it may be made to assume. Of course the curtain may be raised by depressing the weight E, but the curtain may also be raised by merely lifting its lower end, when the weight E will prepouderate, and wind up the curtain on the roller B, the curtain coming to rest in the desired positionwhen the support ofthe hand is withdrawn. The reverse action takesv place when the weight E is raised, as the curtain is then free to descend by gravity, and caused to remain in the intended position, by releasing the weight, and thus yielding it to the support of the cord D. The eiect of employing avertical guide is chiey to prevent any disturbance of the equilibrium between the curtain and weight, which would result from the momentum ofthe latter, if allowed to swing free. .In order to insure the most perfectequilibrium, or the most favorable relative weight of the curtain and weight, the latter is made hollow, er provided with an internal chamber, (see iig. 3,) and with a removable plug or stopper, e, iig. 1, which enables the addition or removal of shot or particles of weight-y metal, in order to attain the desired graduation. l

Having thus described our invention, the following is what we claim as new, and desire to secure by Letters Patent: A" v 1. We claim the combination of the curtain A, rollerB, counterbalancing-weight E, elevating-cord D, attached directly to the weight E, and a guide, whereby said weight is confined to' a specific path', all arranged to operate substantially as and for the purposes set forth.

2. We cla-im the combination, with the curtain A, and its essential accessories, of a hollow or chamberedsupporting-weight, E, adapted to admit of graduation, substantially` as and for the purpose set forth.

To the above specification of our new and useful improvements in curtain-fixtures, we have signed our hands, this 17th day of August, A. D. 1867. v 1

HERMAN WOCHER,

BENENDIK'T GEIGER.

Witnesses:

Jou. WILHnIM SCHNEIDER, FERDINAND Buscar.

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