US726006A

US726006A - Adjustable window-shade.

Info

Publication number: US726006A
Application number: US14213503A
Authority: US
Inventors: John T Taylor
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-02-06
Filing date: 1903-02-06
Publication date: 1903-04-21
Anticipated expiration: 1920-04-21

Description

10.726,006. PATLNTLD APR.21,1903.

A J.'T.TAYLOR; ADJUSTABLE. WINDOW SHADE.

l APPLIoATvIoN FILED PDB. e. 190s.

2 SHEETS-SHEET 1.

wrrNEsSVEs:

'AADAWAN' BY ATTORNEY PATENTBD APR. '21, 190s.

J. T. TAYLOR. ADJUSTABLE WINDOW SHADE.

2 SHEETS-SHEET '2.

kJN0 MODEL.

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FIGEB.

ITNVENToR A Ww. s

FIGS.

wrrN'EsskEs BY Ki ATTORNEY UNITED 'STATI-js`f PAT-ENT OFFICE.

JoHN T. TAYLOR, oF PITTSBURG, PENNSYLVANIA.

ADJUSTABLE WINDOW-SHADE.

SPECIFICATION formingpart of Letters Patent No. '726.006, datedApril 21, 1903.

Application filed February 6, 1903. Serial No. 142,135. (No model.)

To all whom' t may concern:

Be it known that I, JOHN T. TAYLOR, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Adjustable Window- Shades, of which improvement the following is a specification.

This invention relates t-o that class of window-shades which may be adjusted vertically to any desired height to permit the light being shut olif at the top or bottom of the window, as desired. In this class of Windowshades it has been found difficult to adjust the shade-holder so that it will at all times maintain a true horizontal position relative to the Window, thereby causing the holder to become bound or the shade attached thereto to become more or less disposed diagonally or out of alinement with the Window or its frame when the shade lis unwound from the holder. l

The object of my invention is to overcome the above and other difficulties encountered in shade-holders of this class, which willbe hereinafter set forth. Y

In the accompanying drawings I have illustrated my improved window-shade in application to a Window and in detail,in which drawings- Y 1 Figure 1 is a front view of a Window and frame, showing the application of my improved adjustableA shade holder thereto. Fig. 2 is a side viewof the frame, also showing the shade and holder attached. Fig. 3 is an enlarged end view of the shade-holder and a portion of the adjusting attachments. Fig. 4 is a front view of the parts shown in Fig. 3. Fig. 5 is a side view of one of the shade-supporting brackets detached from the adjusting member. Fig. 6 is a front View of said bracket. Fig. Pi-sa side view of one of the sprocket-chain wheels and its support. Fig. 8 is a front View of said wheel and support.

Further reference being had-to said drawings for a description of the detail parts, their application, and the operation ofithe device, the numeral l designates a window-frame, to the lower opposite sides of which are attached suitable brackets 2, each having rotatably mounted therein a sprocket-wheel. Similar brackets 4 are attached at opposite sides of Vinternal winding-spring is provided .with a set-screw l3'to lock the shaftlend to the bracket, and the bracket 10 for the Yreception of the pin at the opposite end of 'the roller is providedwith a leaf-sprin g I4 to prevent possible displacement at that end ofIthe roller.

In adjusting the shade-roller .the chain at either side of the frame is grasped and pulled up or down in accordance to the adjustment desired, and as the chain-wheelsat the top are vboth secured to vthe same shaft, and as the lchains in passingover said wheels engage the l-inks of the chain and are not given to stretching like that of a cord, the adjustment of one Vwill be equal to that of the other, and consequently cause the shade-roller to be adj listed vertically and maintain a true horizontal position at all ti mes and at any position.

One of the most important features of this device is the employment of the spiral springs 8 inthe chains, for by means of these springs the slack of one or both chains may be taken up if the distance between the top and bottom wheels on one or both sides of the frame should vary when applied to the frame. Furthermore, the said springs will at all times insure perfect engagement of the chain-links and the Wheels, as Well as take up expansion and contraction. The form of 'bra'ckets employed with the chains are also admirably adapted for preventing displacement of the shade-roller in adjusting the same.

Having thus fully shown and described my invention, what I claim as new, and desire to secure by Letters Patent, is

In an adjustable window-shade of the class set forth, the combination of a horizontallydisposed shaft mounted in bearings at the upper part of the window-frame and having at IOO each endasprooket-whee1,a pair of independa spiral spring interposed yin each of said ent sprocket-Wheels mounted on said frame chains between the brackets and the chain near the base to aline with those of said ends,a11arranged and combinedasshown and I5 shaft, a pair of parallel endless link chains for the purpose set forth.

5 mounted on said sprocket-wheels, a spring- In testimony whereof I have hereunto shade, a pair of su pporting-braekets for said signed my name in the presence of two snbshade connected in said chains at the rear scribing witnesses. sides thereof one of which is provided with a i set-screw to engage and secure thereto the JOHN T' TAYLOR' lo attened end of the shade-springr journal and In presence ofthe other with a leaf-spring to maintain the RICHARD S. HARRISON, journal at the opposite end in position, and l JOHN GROETZINGER.