US371635A

US371635A - Shade roller

Info

Publication number: US371635A
Authority: US
Publication date: 1887-10-18
Anticipated expiration: 1904-10-18

Description

(No Model.)

A- 13. SHAW.

SHADE ROLLER.

Ne. 371 635. Patented Oct. 18,1887.

zmmu 71, llllllllllili'm ii Shaw W e es; Inventor) 6 Q 049% W by l UNITED STATES PATENT O FICE.

AI B. SHAW, OF RAOINE, VVISOONSIN, ASSIGNOR TO THE RACINE SHADE ROLLER COMPANY, OF SAME PLACE.

SHADE-ROLLER.

BPECIFICATI ON forming part of Letters Patent No. 371,635, dated October 18, 1887.

(No model.)

To all whom it may concern:

Be it known that 1, AI B. SHAW, of Racine, in the county of Racine and State of Wisconsin, have invented certain new and useful Improvements in Shade-Rollers, of which the following is a specification.

My invention has reference to shade-rollers of that class in which a spring is used to wind the shade upon the roller; and the improvements relate to a novel construction of the spindle and a novel construction of the disk or plate which carries the locking-dogs.

1n the drawings, Figure 1 is a perspective View of my improved spindle and disk or plate; Fig. 2, a side view of the spindle, also showing the form of the spindle in cross-section; Fig. 3, a sectional view of part of a curtainroll with my improvements applied, parts being in section; Fig. 4, a section of the spindle on the line a: a: of Fig. 3; Fig. 5, an end view of the spindle and disk, and Fig. 6 a section through the latter on the line y y.

Heretofore it has been customary to use either wooden or metallic spindles; but the various constructions of which I am aware are open to objections. The wooden spindles, in order to possess the requisite strength, have been made unduly large, while the metallic spindles have heretofore consisted merely of a round rod,which is found in practice not only to be expensive, but heavy and liable to twist or break, according to the temper of the metal. To overcome these objections, and to simplify and cheapen the cost of construction, I make my spindle of the form shown in Figs. 1 and 2.

A indicates the spindle, which is provided at its inner end with a collar, a, notched, as at b, which when in place rests in the bottom of the socket in the curtainroll B.

Ata slight distance from the end of the spindle I form one or more lugs or webs, d, which extend lengthwise of the spindle and terminate in a second collar, 6, as shown in Figs. 1, 2, and 4, and for-a purpose presently explained. The main body of the spindle A is grooved, channeled, or corrugated lengthwise, as shown in Figs. 1 and 2, forming webs f, from which construction itwill be seen that I have an exceedingly strong spindle, and while containing no more metal than the ordinary round spindles heretofore used, it is materially stronger than the latter. In fact, it is found that a smaller amount of metal may be used than is employed in the round rods, and therefore, while possessing the advantage of increased strength, I am also enabled to lessen the cost of manufacture. In a single spindle this difference in material is slight, of course; but where large numbers are manufactured the difference becomes important.

Near the outer end of the spindle I provide the latter with a collar, 9, and a cylindrical hub, h, the latter being provided with sockets ifor the reception of the locking-dogs, as usual. The extreme outer end of the spindle is flattened, as shown, and is adapted to be inserted in a suitable supporting-bracket.

0 indicates the disk or plate,which is placed upon the outer end ofthe spindle, and,asshown in Figs. 1, 3, 5, and 6, is provided with acircumferential rim,j, in which are formed seats for the sliding dogs Z, the seats 70 being tan gential to the end of the spindle.

The disk or plate 0 is provided with a cent-ral tubular hub, m, on its rear face, as shown in Figs. 1, 3, and 6, and is also provided on said rear face with two perforated ears or lugs, 12 n, as shown in Figs. 1, 3, 5, and 6,which are adapted to receive the end of the coiled spring D. The disk or plate 0, comprising the raised rim j, seats k, hub m, and eyes a a, is a single casting, and is exceedingly simple and cheap to construct.

It will also be noticed that by the use of the eyes a n, I may dispense with screws for attaching the disk 0 to the roll B, as the eyes may be embedded in the end of the roller, and thereby prevented from turning.

The spring D is coiled about the spindle A, its inner end being wound tighter or of less diameter than the outer end, as is usual.

In order to place the spring upon the spindle, it is first coiled and passed over the inner end of the latter, the inner bent end of the spring passing through the notch b in collar a, a further longitudinal movement of the spring or of the spindle,accompanied by a slight turn, bringing this bent end of the spring into engagement with one of the webs or lugs d, as shown in Figs. 3 and 4. The outer end of the spring is passed through the eyes a, as shown in Fig. 3. It will thus be seen that the spring is securely attached to the spindle and to the cap or disk without the aid of detachable parts or special devices.

Should the end of the spring slip oft the lug or web d when the roll is first turned, it will catch upon another one of the lugs.

It is obvious thatthe number of lugs d and webs f may be increased or diminished, as desired; but I prefer the arrangement shown.

A sheet-metal cap, E, is employed to retain the dogs in their proper place, and also to give a finished appearance to the roller.

Having thus described my invention, what I claim is-- 1. In combination with a shaderoller, B, a

' its inner end with a series of lugs, d, in combination with a spring, D, wound upon said spindle and engaging with one of the lugs, substantially as shown.

3. A spindle for shade-rollers, provided at its inner end with a notched collar, a, and a series of lugs, d, in combination with spring D, woundupon said spindle and engaging with one of the lugs, substantially as shown.

4. In combination with a shade-roller, a pawl-carrying plate, and a coiled spring, the herein-described spindle, comprising the fluted body, notched collar a, lugs d, collar 9, and hub h, provided with sockets i, all substantially as shown.

5. In combination with curtain-roll B, spindle A, and spring D, the hereindescribed disk 0, comprising raised rim j and sockets k on one face and hub m and perforated eyes at 011 the rear face, and pawls Z, mounted in the sockets k.

AI B. SHAW. NVitness'es: V

FRANK C. KELLER,- JOHN F. BIOKEL.