US1404837A - Curtain-shade roller - Google Patents

Description

c. A. DANIEL.

CURTAIN SHADE ROLLER.

APPLICATION FILED FEB- 8;!919- RENEWED JUNE 15,1921. 1,4Q4,837, Patented Jan. 31, 1922.

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CURTAIN SHADE ROLLER. APPLICATION FILED ms. 8, 1919. RENEWED JUNE 15, 1921'.

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Fr -iterated Jan. 31, 19%2.

Application filed FebruaryS, 1919, SerialNo. 275,778.}Renewed June 15, 1921. Serial No. 477,86e.

To all whom it may concern:

Be it known that I, Chem A. DANIEL, a citizen of the United States, residing at Greensboro, in the county of Guilford and State of North Carolina, have invented certain new and useful Improvements in Gun tain-Shade Rollers, of which the following is a specification.

My invention relates to an improvement in curtain shade rollers, and the means for raising and lowering the same.

This invention is an improvement on the construction disclosed in Letters Patent to Dawson, No. 1,181,852, dated May 2, 1916, on which Reissue Patent No. 14,375, was granted Oct. 9, 1917, and while operating in a way on the same principle, that is of both raising and lowering the curtain by asingle cord, the object of this invention is to greatly simplify that device in economy and cost of manufacture and to produce a simple device which will operate to all intents and purposes automatically to lock the curtain shade to the position to which it is desired to place it, and which will unlock or release itself, and which by simply pulling the single cord both raises and lowers the curtain.

With the foregoing objects in view, this invention consists in an automatic stoproller or pulley constructed and adapted to co-operate with its support to receive and guide the curtain-raising and lowering cord in both the raising and lowering operation, and so automatically pinch or clamp the cord between itself and its support when the curtain reaches the desired adjustment.

In the accompanying drawings Fig. 1 is a view in perspective;

Fig. 2 is a longitudinal section through the bracket, the end of the roller, and the pulley on the line 2-2 of Fig. 1;

Fig. 3 is a section on the line 33 of Fig. 2, taken at right-angles to Fig. 2;

Figs. i and 5 are sections on the lines 4-4: and 55 of Fig. 2, showing the stop pulley in different positions with respect to the curtain raising and lowering cord;

Fig. 6 is an end view;

Figure 7 is an enlarged view of the pulley in the position shown in Figure 2, with only a fragment of the bracket showing.

A, represents a roller, and 1 is a reel at the left-hand end within which the curtain raising and lowering cord 2 is secured and reeled. The pintle 3 at the end is preferably round and turns in a correspondinglyshaped hole 41 in the arm 5 of the bracket 6, which supports the end of the roller, and the pintle 7 at the opposite end turns in an open slot 8 by means of which the roller and shade may be lifted and removed from the bracket. The bracket preferably has an overhanging arm 9 which terminates in proximity to the reel, and, in the particular form shown, a little over and beyond the vertical plane of the pintle 3. The stop pulley 10 is rotatably mounted on a pin 11 secured at the ends in the ears of the overhanging arm 9.

This stop-pulley has three grooves therein, the main circumferential groove 12 of uniform depth at one side and the two switch-grooves 13 and 1e extendingspirally therefrom and of gradually decreasing depth until they reach nothing at the cylindrical surface of the pulley, the function of which is to receive and pinch the curtainshade raising and lowering cord 2 between the pulley and the adjacent surface of the overhanging arm of the bracket when it is desired to stop and hold the curtain-shade at the elevation desired. This is accomplished by pulling the cord slightly to the right and slackening the pulley, whereupon it is switched into one of the spiral grooves and caught between its shallow end and the arm of the bracket where it is wedged and held (the weight of the curtain co-operating to tighten and perfect the fastening) until again pulled, whereupon the cord automatically switches back into the main circumferential groove 12, where it is held while the curtain is being either raised or lowered until it is again desired to fasten it. Then the cord is pulled slightly to the right and allowed to slack, it immediately becoming pinched and caught or wedged again between the spiral groove in which it lies and the adjacent surface of the bracket-arm.

In this way, a simple automatic device is provided all in one attachment at the point where the curtain-shade roller is held, thus dispensing with any other fixture or fastening common in the springless curtain shades for fastening the cord.

I have described the foregoing as an illustrative type of my invention, although conscious that it is susceptible of modifications, I

and it is my desire to so cover the invention that it Will comprehend all legitimate forms involving the principles set forth.

I claim:

The combination with a curtain shade roller and a curtain shade and cord, said shade and cord secured to and adapted to wind thereon in opposite directions, of a bracket or fixture forming a bearing for the roller and a guide for the cord, located above the roller, and rotatable means carried by the bracket to which the'cord extends directly from the roller, and between which and the bracket the cord passes and is adapted to be pinched When directed laterally to a predetermined position thereon, the cord being "free and disconnected from the point Where it leaves the rotatable means, so that its manipulation is at all times entirely Within the control of the operator.

In testimony whereof I affi x my signature.

CECIL A. DANIEL.

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