US850297A - Curtain-holding device. - Google Patents

Description

I and useful Improvements in Curtain-Holding NITED STATES PATENT FFTC.

GEORGE H. Davis, 55 riiiiim, MAINE. CURTAIN-HfgLDING DEVICE- Patented April 16, 1907. Application filed March 17, 1904. Renewed February 18. 1907. Serial No. 358,113.

No. 850,297. Specification of Letters Patent.

' section and portions of the window-frame.

Be it known thatI, GEORGE H. DAVIS, a Fig. 2 is an edge view of the shoe, and Figs. citizen of the United States of America, and 3 and 4 are side and edge elevations of the a resident of Portland, Cumberland county, modified form. State of Maine, have invented certain new A designates a roller of the usual type wherein the spring is constantly acting. B designates the curtain, carrying any suitable tubular stick D at its lower margin, and C designates the guide-groove of a windowframe. WVithin the stick D is a spring-actuated rod E, having a tached thereto, and threaded into a stem To all whom it natty concern.-

Devices, of which tion.

This invention relates to an improvement in holding-fixtures for spring-actuated shades or curtains, and it is embodied in the construction and arrangement of parts presently to be described, and defined in the claims. I

Heretofore the more usual and satisfactory in the outer end of the tube. The above means for retaining shades or curtains in construction is of a well-known type. various positions of adjustment against the On the outer end of the stem'F is an elontension of a constantly-acting spring has gated head or shoe G, extending above and been to provide a stick having spring-pressed stem. The central below the plane of the shoes at its ends, which shoes carry or have. portion of the shoe is extended outward and connected theretosuitable friction holding is formed on its outer surface with a series of means adapted to engage a stationaryguide depressions, which depressions are filled .111 on the window-frame. The more-accepted with. a metal substance different from that of type of shoe has been of the elongated form,

the construction of the shoe, such substance the ends of which are either rounded or probeing conveniently lead g. The preferred vided with antifriction-rolls, so that as the l form is that shown in Figs. 1 and 2, wherein curtain-stick 1s tilted the shoes Wlll rock on the depresslons are formed of angular rethe antifriction ends, and thereby be drawn cesses, and in practice the lead is filled into back into the normal holding position by the the recesses substantially flush with the outer action of the shade-spring, and while being sharpened ends or apexes of the ribs 9, so drawn down the ends will tend to follow that the friction-surface is composed of two down the grooves, and thus in a degree premetals-a relatively hard and soft metal.

vent the shoes from escaping from the guide- This composite friction-face I have found to grooves. It, however, frequently happens be convenient and useful in that there is prethat by improper manipulation of the shade, sen'ted a surface which largely overcomes the so as to tilt the stick, the elongated heads are natural slipping tendency of a plain metal twisted or turned slightly, so that the lower shoe. ends on one side or the upper end on the opposite form of friction-face may be secured posite side of the window will bedeflected in various ways and that by the term comslightly transversely and catch on the side of posite I do not wish to be understood as rethe groove, thus preventing the stick from ferring being righted promptly and properly. posed of separate metals.

The object of my invention is to provide a The ends it of the shoe G are extended in shoe with means which will serve as effective opposite directions beyond the friction-face guides when the curtain-stick is tilted and of the shoe and are struck up or formed with which will also prevent the twisting of the side flanges, between which are pivoted on a stick and shoes out of line with the guide suitable pivot elongated tiltable blocks H. grooves.

These blocks normally stand vertically and A further object of the invention is to promay be conveniently out of contact with the vide an improved friction holding means for bottom of the guide-groove Theblocks H holding-fixtures.

l l are conveniently made of metal, such as In the drawings I have shown an embodi- )l the following is a specificaits outer end being F, which loosely works brass, although any other desirable metal or ment of the invention but it is to be undermaterial may be used. stood that various changes can be made In Figs. 3 and 4 I have shown a modified without departing from the principle and naform wherein the elongated pivot-blocks exture of the invention.

tend from the center of the shoe-in other Figure 1 is an elevation showing parts in words, occupying substantially the entire suitable pendant e at I desire 1t understood that the com 4 to an alloy, but rather to a face com- ICO face of the shoe. In this construction I necessarily omit the fixed friction-surface. The tWo blocks L are pivoted, as in the other figure, and their engaging surfaces maybe roughened or made of composite material, as in the construction above described.

In operation the fixture can be drawn down by compressing the pinch-handles and releasing the friction; but should it be drawn down by grasping the fixture at one end, so as to tilt the stick, then the fixture will rock on the long pivot-blocks, and thereby be guided properly in the grooves, and the fixture Will promptly self-right itself.

Having thus describedthe invention, What is claimed as neW, and desired to be secured by Letters Patent, is

1. A friction holding device for curtainfixtures consisting of an elongated shoe having separated and independent movable elongated bearing-blocks pivotally secured intermediate their ends at opposite ends of the shoe on pivots transverse to the head and stick and extending beyond the ends of the shoe, the bearing-surfaces of which being continuous and flat.

2. A friction holding device for curtainfixtures consisting of an elongated shoe having separated and independently-movable elongated bear1ng-blocks pivotally secured intermediate their ends at opposite ends of the shoe on pivots transverse to the head and stick and extending beyond the ends of the shoe, the shoes having metallic frictional continuous flat engaging surfaces.

A friction holding device for curtainfixtures consisting of an elongated shoe having separated and independently-movable elongated bearing-blocks pivotally secured intermediate their ends at opposite ends of the shoe on pivots transverse to the head and stick and extending beyond the ends of the shoe, said shoes having a frictional engaging surface comprising a plurality of closely-associated transversely-arranged sections of relatively hard and soft metals.

4. A friction holding device for curtainfixtures consisting of an elongated shoe having separated and independently-movable elongated bearing-blocks pivotally secured intermediate their ends at opposite ends of the shoe on pivots transverse to the head and stick, and extending beyond. the ends of the s 106.

Signed at Portland, Maine, this 2d day of December, 1903.

. GEORGE H. DAVIS. \Vitnesses S. W. BATES, L. M. GODFREY.

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