US408410A - Shade-fastener - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

' P. A. HARRIS. SHADE FASTENER.

No. 408,410. Patented Aug. 6, 1889.

INVENTUR I WITN E55 E5 N. PETERS. PhotoUtMguhhenWinhington. u c.

(No Model.)

2 Sheets-Sheet 2. P. AJHARRIS.

v Rq' INVENTDR N4 PETERS, Fhomuihn m mr, wnhm mn, D. c.

UNITED STATES ATENT FFICE.

PHILANDER A. HARRIS, OF PATERSON, NEIV JERSEY.

SHADE-FASTENER.

SPECIFICATION forming part of Letters Patent No. 408,410, dated August 6, 1889.

Application filed April 9, 1889.

lowing is a specification.

My invention relates to an improved means for securing window shades and curtains to the rollers or sticks upon which the same are wound; and the object of my invention is to provide a device which shall prevent the shade or curtain being torn from the roller or stick when the shade is being unwound. The means I employ for-accomplishing this are shown in the accompanying drawings, in which Figure I is a perspective view of a portion of a roller and its shade, the latter being unwound almost its entire length, showing my improved device attached. Fig. II is a view showing the device in a modified form.

A is an ordinary spring-roller.

B is the shade or curtain.

C is a flexible band or cord, one end of which is attached to the roller and the other to the shade.

D is the place of attachment of the band or cord 0 to the roller A.

E is a device for fastening the band or cord 0 to the shade B.

The length of the band or cord 0 and the place where it is secured to the roller A must be such that as the shade is unwound and just before there begins to be a strain upon the nails or other devices which fasten the shade to the roller the band or cord 0 will be drawn taut and begin to be wound upon the roller.

The devices E are made as shown in the drawings, for the purpose of obtaining a firm Serial No. 306,522. (No model.)

at that moment arrests the shade in its downward movement. Thus the unwinding of the shade is arrested before there is any strain upon the nails or other fastenings which secure the shade to the roller, and the shade cannot easily be torn from its roller.

The band C may be fiat, as a tape, or it may be a cord, as shown in the drawings. It may be made of some textile fabric, or it may be of flexible metal or other material. It may be secured to the roller and the shade in any known manner, bearing in mind not to make the point of attachment to the shade too small, lest the shade be torn. The band C may be single, as shown at 1 and 3 in Fig. I, or it may be double, passing around the roller and having both ends fastened to the shade, as shown at 2 and 4 in Fig. 1. Again, the band or cord 0 need not necessarily hang perpendicularly from the roller, but it may have the position shown in Fig. II. In this figure the construction is similar to that shown at4 in Fig. I, except that, instead of the cord C hanging perpendicularly from the roller A and having both its ends fastened to the shade B at the same place, the said cord is passed obliquely over the roller, and its two ends, instead of being together, as in Fig. I, are secured to the shade at points widely separated from one another. It will be seen that instead of having a series of these short bands or cords, one long cord may be used having one end fastened to the shade near one edge and the other near the opposite edge. In such a case intermediate points of the cord must necessarily be fastened to the shade, as shown in the drawings, thereby permitting the cord to be passed back and forth over the roller, as stated and shown.

Ofcourse any number of bands may be used on one shade.

In order to prevent a too sudden arresting of the downward movement of the shade, the cord or band C may be made slightly elastic by the insertion of rubber, or in any other known manner. In the case of the cord shown at 4: in Fig. I, this elastic effect will be obtained by simply twisting the cord before fastening its ends to the shade.

In the drawings I have shown the fastenings E as strips of punctured metal, but the band or cord C may be secured to the shade by sewing or in any other suitable manner.

Vhat I claim as new, and desire to secure by Letters Patent, is-

1. In a shade-roller, the combination of the roller, the shade attached thereto, and a flexi ble band or cord attached to the roller and also to the shade, the point of attachment of said cord to the shade being just before the shade is entirely unwound nearer perpendicularly to its point of attachment to the roller than to the point measured along the shade where the shade is attached to the roller, whereby the cord is drawn taut and strain upon the shade at its points of attaclnnent to the roller is prevented, substantially as shown and described.

2. In a shade-roller, the combination of the roller A, with its attached shade B and the band or cord C, which latter is hung upon the roller A and has its ends attached to the shade, the points of attachment to the shade being just before the shade is entirely unwound nearer perpendicularly to the points where the said cord is tangent to the sides of the roller than to the point measured along the shade where the shade is attached to the roller, whereby the cord is drawn taut and strain upon the shade at its points of attachment to the roller is prevented, substantially as shown and described.

PIIILANDER A. HARRIS.

Witnesses:

FRANK GLEDHILL, PETER RYLE.

Images