US297892A - Edwin v - Google Patents

Description

' (No-Model.) 2 Sheets8neet 1.-

E. v. WHITAKER. WIND-0W SHADE.

No .'297,892.. Patented Apr, 29,' 1884.

WITNESSES: I NV NTUR.

2 w h S Q e h S 2 A E K v m H. H. m d 0 M o m.

WINDOW SHADE.

Patente Apr. 29; 1884 iis m WITNESSES:

W ATTORNEYS.

UNITED STATES PATENT OFFICE.

EDWIN V. WHITAKER, OF GLOVERSVILLE, NEW YORK.

WINDOW-SHADE.

SPECIFICATION forming part of Letters Patent No. 297,892, dated April 29, 1884.

Application filed February 28, 1884. (No model.)

State of New York, have invented certain new" and useful Improvements in Window-Shades;

and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompa} nying drawings, which form a part of this specification, and in which- Figure 1 is a perspective view of my improved window-shade. Fig. 2 is a perspective view of one of the supporting-brackets. Figs. 3 and 4 are detail views of the spring-bracket, and Fig. 5 is a similar view of the pivotbracket.

Similar letters of reference indicate corresponding parts in all the figures.

My invention has relation to window-shade operated by springs ,and it consists in the improved construction and combination of parts of the same, as hereinafter more fully described and claimed.

In the accompanying drawings, the letter A indicates a cornice, to the ends of which the spring-bracket B and the pivot-bracket O are secured, and which is clamped by two brackets, D, secured in the wall or window-frame, and forming two projecting lips, E, between which the cornice is held, thumb-screws F passing through the upper lips of the brackets, and bearing against the upper side of the cornice, preventing the cornice from slipping out from between the lips. The pivot-bracket G, in which the pivot Gin the end of roller H turns, is provided with an inwardly-projecting base-plate, I, having two longitudinal slots, J extending from its inner edge, and two fastening-screws, K, pass into the under side of the cornice, the slots sliding upon them, and theirheads bearing against the under side of the base-plate, allowing the bracket to be adj usted upon these screws to accommodate roll: ers of different lengths. The spring-bracket is provided with a base-plate, L, secured by means of screws to the under side of the cornice, and the portion of the bracket projecting downward from the base-plate forms a narrow cylindrical casing or barrel, M, the inner open side of which is covered by'a recessed plate, N, secured removably to the same. The barrel has a central bearing, 0, through which passes the outer portion of a shaft, I, to which 'the inner end of the helical spring Q is secured, the outer end of which spring is secured to the inner side of the barrel, in the same manner as the springin a watch or clock. The outer end of the shaft is preferably square, adapted to be turned by a key or wrench, and a ratchet-wheel, R, is secured upon the shaft immediately above the spring, and engages a pawl, S, upon the under side of a cog-wheel, T, which turns and fits upon the shaft. This cogwheel engages a pinion, U, secured upon the face of a cog-wheel, V, and this wheel meshes with a pinion, W,upon the end of a sleeve, X, which turns upon the reducedinner end,Y, of the shaft, and which sleeve is adapted to be inserted with its square or otherwise polygonous end Z into a correspondingly-shaped per foration in the end of the shade-roller. When the spring is wound slightly so as to give tension to it, and the shade is drawn down, thevided to hold the shade down at different points of the window-frame, as in other spring-actuated roller-shades.

It will be seen that by having the operatingspring inclosed inone of the brackets, ashade and roller of any construction may be adapted to the brackets; and it will also be seen that the roller-bearing brackets being secured upon the cornice, and the cornice being held between the clamping-lips of the brackets, which may be secured into the wall or window-frame at any distance from each other, the roller may be used in a window in which a roller secured between brackets secured directly in the wall Having thus described my invention, I claim and desire to secure by Letters Patent of the United States- 1. The combination of a cornice having roller-bearing brackets, with brackets having projecting clamping-lips adapted to clamp the cornice, and having set-screws passing through the lips bearing against the cornice, as and for the purpose shown and set forth.

2. The combination, in a window-shade, of the roller, with a bracket having a longitudinally-slotted base-plate and screws passing through the slots, the said slots sliding upon the said screws, as and for the purpose shown and set forth.

3. The combination, in a window-shade, of the roller, with a bracket having the end of the roller pivoted in it, having slots in its base-plate extending from its inner edge, and sliding with the said slots upon screws, as and for the purpose shown and set forth.

4. In a widow-shade, the combination of a bracket forming a fiat cylindrical easing or barrcl covered by a recessed plate, a helical spring secured to the inner side of the barrel and to ashaft turning in the barrel, a shaft turning in the barrel, having the inner end reduced and provided with a ratchet-wheel, a cog-wheel turning upon the shaft and having a pawl engaging the ratchet-wheel, a cogwheel having a pinion meshing with the aforesaid cog-wheel, a sleeve having a pinion upon its inner end, turning upon the reduced inner end of the shaft, and having its inner end polygonous, and a shade-roller pivoted in a bracket at its other end, and having a recess or perforation in its end adapted to receive the end of the sleeve, as and for the purpose shown and set forth.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

EDWIN V. WHITAKER.

Vi tncsses THOMAS GARDINER, CHARLES J. MrLLs.

Images