US315029A

US315029A - Jacob hilditch

Info

Publication number: US315029A
Authority: US
Publication date: 1885-04-07
Anticipated expiration: 1902-04-07

Description

(No Model!) J. HILDITGH.

SELF ACTING MECHANISM FOR SHADES AND BLI NDS.

Patented Apr. 7, 1885.

r N. PETERS, FholO-Lllhognphnr. washingmn. D. c.

UNITED STATES PATENT OFFICE.

JACOB HILDIIGH, CHRISTIAN IA, N ORW'AY.

'SELF-ACTING MECHANISM FOR SHADES AND BLINDS.

ISPECIIFICCAZEION forming part of Letters Patent No. 315,029, dated April 7,1885.

Application filed Sepember 20, 1884. (No model.)

To all whom it may concern:

Be it known that-I, JACOB HILDITGH, a subject of the King of Norway, residing in Christiania, in the Kingdom of Norway, have invented certain new and useful Improvements in Self Acting Mechanism for Shades and Blinds; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in devices for automatically raising window-curtains, the object being to provide a device which may be easily and readily applied to curtain-fixtures of ordinary construction, and

which shall be simple and economical in construction and free from all liability of getting out of order.

With these ends in View my invention consists in certain details of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional view of my improvement. Fig. 2 is a front view thereof, and Figs. 3, 4, and 5 are modifications.

A represents a window-frame, in the upper portion of which is mounted a curtain-pole, a, the ends fitting into bearings 72, said pole a being providedunear one end with a vacant portion, and, if desired, with a disk, 0, said pole forming a reel for the cord to wind on, as will be hereinafter explained, the disk 0 serving to prevent the cord from get-ting on the end of the pole and interfering with its turning in the bearing.

To the frame A is secured a metal plate, B, to the center of which is secured or formed integral therewith the stud or projection O, the said plate B being secured to the firame by means of the screws (2.

On the plate B is adapted to fit the roller D, centrally provided with the inwardlyextending collar, 6, which-fits on the stud G and allows the roller to turn thereon, the stud being provided with a shoulder, f, against which fits the end of the collar 6, and prevents the roller from bearing against the frontface of the plate B. The rim of the roller is preferably grooved or hollowed out, as shown at g, and in vertical line with the reel a, said roller being retained in its proper position by means of a screw, E, fitting into a screw-threaded hole in the stud O, the head of the screw fitting against the outer face of the roller, but not tight enough to prevent the roller from turning. Within the roller is a coiled spring, F, the outer end of which is secured to a pin. it, formed on or secured to the plate B, the inner end of the spring being secured to the collar or flange 6, formed on the roller. hen the roller is turned'in one direction, the spring, being secured to the collar, is uncoiled, and as soon as the roller is released the spring immediately returns to its normal condition and turns the roller in the opposite direction. The curtain-pole a is also turned by the spring in a similar manner by means of the cord 1', which is secured thereto, and which is secured to the roller, said cord being adapted to be wound around the curtain and the grooved rim of the roller. WVhen the curtain is lowered, the roller is turned by means of the cord 1' and the spring F uncoiled; but, as before explained, if the curtain is released, the spring immediately turns the rolier,winding the cord thereon, and thereby raising the curtain. The inner edge of the roller is provided with notches 7c, in which is adapted to fit a lug or projection on the one of a pawl pivoted to the plate B. WVhen the roller is revolved slowly, the pawl catches in the notches and holds the roller stationary; but when the roller is revolving rapidly the pawl rides across the notches and allows the roller to continue revolving.

I would have it understood that I do not limit myself to the exact construction shown and described, as many slight changes might be made therein without departing from the spirit of my invention-as, for instance, instead of forming a stud or hearing on the plate, a screw is passed through the collar and through the plate B into the frame A, holding the parts in position, as shown in Fig. 3. Again, the stud may be used and a washer and pin employed to keep the roller in position, as shown in Fig. 5. Again, instead of employing a pawl, as shown in Figs. 1 and 2, a sliding pin, m, may be used in lieu thereof,

said pin fitting in a groove, a, in the plate B,

adapted, when the roller is revolving slowly, to drop a notch or recess, 0, formed on the inner edge of the roller.

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

1. The combination, with a curtain and ourtain-pole, of a spring-actuated roller journaled on a stud secured to the Window-frame, and provided with a notched periphery, a pawl for engaging the notched periphery of the roller, and a cord connecting the roller and curtainpole.

2. The combination, with a plate secured 'to the window-frame and provided with a stud,

of a pulley provided with an inwardly-ex- JACOB HILDITOH.

Witnesses:

SoREN H. STRoM, J OHAN HOPZAARD.