US24479A - Window-curtain fixture - Google Patents

Description

PATENT OFFICE.

PURCIAIES MILES, OF IW BRITAIN, CONNECTICUT.

WINDOW-CURTAIN FIXTURE.

specication of Letters Patent No. 24,479, dated June 2.1, 1859.

To all whom it may concern:

Be it known that I, PURCHES MILES, of N ew Britain, county of Hartford, and State of Connecticut, have invented new and useful Improvements in Fixtures for Window-l Curtains, of which the following is a full and correct description, reference being had to the drawings herein referred to, making a part thereof, in which* Figure l represents an interior and face view of a framing for holding the pulley of the curtain roller, together with the bracket to which it is hinged. Fig. 2 represents a front view of the curtain, roller, and lixtures for sustaining, elevating and lowering the curtain. Fig. 3, represents a front view of the pulley frame and bracket, and Fig. 4, is a front view of the fixtures at the end of the roller opposite to the pulley.

The same letters designate the same parts in all the figures.

Where inner blinds are used on windows, and in some other cases, it is important that the curtain roller should be so hung that it can be swung up out of the way for the purpose of allowing the blinds to be opened and closed or for other purposes-and further, when, in use, the roller is thus, from time to time, elevated and depressed, the lower pulley, generally resorted to for tightening the band or cord which operates the roller for raising and lowering the curtain, cannot be used, as it would not permit the roller to be raised, and even if the lower pulley should be so arranged as to allow the roller to rise and fall, the cord or band from contraction and expansion, as proved by universal experience, is constantly becoming too tight or too loose, to properly hold, elevate and lower the curtain.

My improvements are intended to allow the roller to be swung up and let down as occasion may require, and to dispense with the lower pulley entirely, while securing the most efficient action of an endless band and pulley in elevating and depressing the curtain and holding it lirmly at any desired height.

I make the fixture, or compound bracket in two parts A and B, the upper part A is to be attached to the window frame, and the lower part B is to be so hinged or jointed thereto, as to be swung upward and forward as desired. The lower part B I perforate as at o for the reception of the journal of the pulley, each part of the bracket is made in such form as to present the same appearance whether placed at the one or the other side of the window. A t the upper end of this upper or lixed part, there is a flange bent at right angles to the length thereof with a slit therein of proper width for the reception of the shank of a screw, and in the face of the same part there are two openings for screws so` that the permanent or upper part of the bracket can be screwed to the top of the window frame or at its side or back, and at either side of the windouT without disturbing t-he position of the lower and pendent part of the bracket which holds the pulley, or interfering with the swinging motion thereof. The fixtures at the other end of the roller are the same as those already described, the only difference being, that the lower part at the pulleyend, has devices to be described for holding the pulley and band.

The journal of the pulley enters the aperture o prepared for it as described; an endless band is placed upon the pulley extending down far enough to be conveniently reached, and the "pulley is further supported by an arm or arms a, a, which lit the pulley for some distance with the band between the pulley and the arms, the pulley and arms pressing the band between them. The surface of the pulley should consist of some substance, emery for example, over which the band will not easily slip. At the lowest points where the arms begin to hold the band upon the pulley, flanges should be placed on the arms as shown at f, f, to prevent end play of the pulley, and prevent the band from slipping off-lianges o-n the ends of the pulley, with the arms placed between, would answer the same purpose.

It is preferable to place the arms in such position as shown so as to bring the pendent parts of the band much nearer together than the diameter of the pulley, but this is not absolutely essential, and it is obvious that one arm extending a considerable -distance upon the surface of the band and pulley with an opening below to allow the band to come to and from the pulley would answer the same purpose as the two arms I have represented and would not change the principle of action.

I prefer spring arms located and arranged substantially as represented, so that they will press the pulley upward against the journal bearing to produce friction for holding the curtain at any desired height, and be relieved when force is applied downward on the band or curtain for raising 0r lower ing the same, but this is not indispensable. I prefer also that the arms should, as shown7 hold the band against the surface of the pulley for a considerable portion of its circumference, but this is not absolutely necessary. A Y

It will readily be perceived that if the pulley have a friction surface on which the belt cannot easily slip, and the band yis held in Contact therewith as set forth and guided to it as shown, the band will adhere to the pulley without the aid of a lower pulley, or eyelets and points, and will operate the eurtain with ease and certainty.

Having thus fully described my improveset forth.

PU'RCI-IES MILES. Witnesses:

W. I). N. FITZGERALD Con. R. DisoRWAY.

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