US295901A

US295901A - Device for operating window-shades

Info

Publication number: US295901A
Authority: US
Publication date: 1884-04-01
Anticipated expiration: 1901-04-01

Description

(No Model.) l

` V. BLANK 8v T. J. ANTHONY.

. DEVICE POR OPERATING WINDoW Smm-3s. No. 295,901. Patented Apr. 1,1884.

Attest. N l N l Inventors;

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` UNITE STATES PATENT Trice..

VALENTINE BLANK AND THOMAS '.J. ANTHONY, OF SPRINGFIELD, OHIO.

DEVIC FOR OPERATING WINDOW-SHADES.

SPECIFICATION forming part of Letters Patent No. 295,901, dated April 1, 1884.

V 'Application iiled JannaryM, 1884. (No model.)

Sb al@ whom it may oncern:

Be itknown that we, VALENTNE BLANK `and THoMAs J. ANTHONY, both citizens oi'the United States of America, residing at Spring- 5 field, in the county of Clark and State of Ohio, have jointly invented certain new and useful Improvements in Devices for Operating Win- T dow-Shades, of which the followingis aspecificat-ion, reference' being had therein to the ro accompanying drawings.

Our invention relates to devices `for operating windowshades; and it consists of a metal `rod or bar extending across the window and down one side ofthe casing ofthe same, through 15 a box-formed guideway fastened to the face of the casing. The vertical limb of the bar is notched on one side at different points, and a spring-dog within the guideway engages with the notches in adjusting the bar at the various 2O heights required. The window-shade roller is pivoted at either end to the bar just below thehorizontal limb of the'same, the end being` turned downward ashort distance to give room for the bearing thereon and for the operation toothed pinion loosely pivoted thereon, which engageswith a toothed rack on the casing or window-frame. and guided by sliding brackets or keepers, 3o which extend around the rack-bars, and the journals of the roller upon which the pinions turn, at each end, extend through the front projecting ears of these keepers into staples in the carrierfbar.

Figure l is an, isometric view of a window to which our improved device for operating the window-shade shown therein is applied. Fig. 2 is an enlarged view of the box-formed guideway through which the vertical limb of 4o the L- shaped bar to which the shade is attached is operated. Fig. 3 shows the end of the rack-bar and the sliding bracket or keeper which is operated over the same.

A is the window; B, the shade operating over the same... The shade here. shown is of the ordinary kind, which is wound and unwound upon its rollerby means of a cord. A spring shade-roller can, however, be used `with our device, the objectof which is to lower the z 5o shade from the top as well as to elevate it from the bottom of the window, both for the pur` At each end of the roller is a.

The pinions are supported,

pose of ventilation and to let light into the room where the window may be located. On either side ofthe window are securedthelongtoothed racks b. They are `bent at an angle downward and outward (in line with the body of the same) at'their ends, so as to raise them sufficiently from the face of the window casing or frame, to which it is attached, to allow the brackets k, which extend around under the 6o rack-bars, to slide freely over them.

Byrefercnce to Figs. l and 3 the `position of the sliding bracket with relation to the rack can be seen. The brackets la are U-shaped, and straddle the rack-bars from the under side of the latter. The pinions c c, being loosely pivoted upon thejournalsof the roller a?, between the two ears of the brackets, are kept in constant engagement with the teeth of the racks on either side of the window. The 7o ends of the journals d after passing through each of the brackets L', are held by staples Z, secured to the front of the shade-carrier bar D, which latter is operated to lower and also to raise the shaderoller with its attached shade B. The bar` D, which is shown in Fig.

l, is shaped likepan inverted L, with the horizontal limb a extending across the window.` The left end of limb (o is turned at an angle downward about three inches from its extreme 8o end, and one of the staples Z is iiXed in this part, and opposite Lto this on the vertical limb a3, just below the angle, is the other staple, forming the two bearings for the roller fr'. The vertical limb a3 (seen on the right of the 85 window) ofthe bar D is held in andoperated through a box-shaped guideway, b', screwed to the casing or frame of the window on one side, and the shade-roller is elevated and let down by means of this part of the bar D, a 9o knob, e', on the lower end of the limb as being used to manipulate it.

To provide for windows of different widths, the horizontal limb a, below which the shaderoller is pivoted,is1nade in two parts,onelap- 95 ping upon the other. Each part is provided with a loop, e2 and e3, and thumb-screw e, to retain the two parts in proper relation to each other and to allow of their adjustment. The limb a3 of the carrierD is provided on one edge loo with notches il il t', which are engaged bya dog, e, (seen in the view Fig. 2,) within the guide Q y y 295,901

way b. This dog is formed lon the steinof the knob a', (seen on the front of the guideway,) which extends through the plates oi' the same andispivoted therein. Aat spring-cl, presses against the side of the dog, which latter automatically engages the notches t' when the bar D is pushed upward. The notches i are sloped in from below to facilitate the operation of the dog, which latter is kept in engagement with the edge ot' limb c2 as the shade is raised or lowered. A small spiral spring, s, is introduced as bearing against the end of spring d. Either orboth these springs may be used. The vertical limb a3 slides freely up and down through the opening f, (seen in the guideway b,) this opening being shaped to fit the bar, as shown in Fig. 2. As the shade is raised or lowered by means of the carrier-bar D, the

loose pinions c c travel over their respective racks b b on each side of the window, carrying the shade-roller at (with its shade B) in a true horizontal'line. The shaderoller can be shifted up or down with the shade rolled up or unrolled, and the latter operated from any point where the roller may be either by means of a cord or spring. In using a cord to operate the shade the lower part can be looped over the knob c on the lower end ofthe bar D.

XVe claim as our inveution- 1. A device for operating window-shades, consisting of an (inverted) L-shaped bar, extending across the window and down one side of the same,and having theshade roller pivoted thereto, said roller being provided with a toothed pinion loosely pivoted upon its journals at either end, which engage with vertical toothed racks on the window-frame as theshade is raised and lowered by said bar, said pinions being held in engagement by means of brackets, through which said racks extend, said brackets being adapted to slide over the rackbars when the shade is raised and lowered by said bar, substantially as set forth.

2. In a device for operating windowshades, the L-shaped barD, having the horizontal arm a, extending across thewindow, and means for adjusting the length of said arm, and the vertical limb as, provided with note-hes v1 i therein, the shade-roller a2, pivoted in bearings in said bar D upon either side of the window, and having the loose pinions c upon its journals, the brackets or keepers k, through which the journals of said roller extend, the vertical toothed racks b, said brackets inclosing said pinions and racks, and adapted to slide freely over the latter, q(when the shade is operated,) and the guideway b, provided with the dog e, and means for operating the same, whereby it is engaged with the notches t' t' rin barD when the shade is raised or lowered by means of the latter, substantially as set forth.

3. In a device for operating window-shades, a shaderoller provided with pinions loosely pivoted upon its journals, toothed racks with which said pinions engage-on either side of the window-frame, brackets through which the journals of said roller extend inclosing the racks, and adapted to slide over the same and to hold the pinions of the rollerin engagement therewith, and a carrier-bar, of L shape, extending across the window and down one side of the saine, said roller being pivoted to said carrier-bar upon either side ot' the window, and a guideway through which the vertical limb ofthe carrier-bar extends, having a spring-dog adapted to 'engage with notches in the vertical limb of the carrier-bar in raising and lowering the shade by means of the latter, as set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

VALENTINE BLANK.v THOMAS J. ANTHONY. Witnesses: l

B. C. CONVERSE, SAMUEL M. GRIFFITH.