US320247A

US320247A - Spring shade-roller

Info

Publication number: US320247A
Authority: US
Publication date: 1885-06-16
Anticipated expiration: 1902-06-16

Description

(No Model.)

S. HARTSHORN.

SPRING SHADE ROLLER. No. 320,247. Patented June 16, 1885.

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Nrrnn STATES STEV ART HARTSHORN, OF MILLBURN, NEW JERSEY.

SPRING SHADE-ROLLER.

SPECIFICATION forming part of Letters Patent No. 320,247, dated June 16, 1885.

A pplicntinn filed August 6, 1894.

To all whom it may concern:

Be it known that I, STFAVAR'J. HARTSHORN, residing in Millburn, in the county of Essex in the State of New Jersey, have invented a certain new and useful Improvement in Spring Shade-Rollers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making a part of this specification.

My invention relates to a new and improved mode of attaching the end plate or disk on which the pawls or their equivalents are usually mounted to the roller; and also refers to a ready and effective means of securing the outer end of the spring to the end plate.

In the drawings illustrating my improvements,in which like letters indicate like parts, Figure 1 is a view of a roller, showing the end plate fastened to the same by my improved method, a part of the roller being broken away to show the mode of attachment. Fig. 2 is a detached view of the end plate, showing the screw collar by which it is attached to the roller. Fig. 3 is a view of the end plate, the spindle connected with the same, and the spring mounted upon the latter and secured at its outer end to the end plate by means of the screw on the collar of the latter. Fig. 4 is a view of a modified construct-ion of the end plate, showing an outer collar or ring to prevent the roller splitting.

My invention consists in a novel method of constructing the end plate or disk by which it can be readily and quickly attached directly to the roller, and held firmly secured thereto without the use of any separate means of fastening, as nails, screws, or a retaining-cap or ferrule frequently employed for this purpose.

In my improved method of construction, the end plate is provided on its inner face with a collar or ring, 0, either cast or formed with the plate, or made separate and attached to the same. This collar is of such a diameter compared with the diameter of the bore in the roller that it will enter the roller and permit the end plate to fit closely against the end of the latter, as will be seen in Fig. 1. On

the outside of this collar is formed a screw, as shown in the drawings, the thread of which (No model.)

is such that when the collar is inserted in the bore, and the end plate turned, the screw will bite into or enter the wood of the roller. This screw may be cast with the collar, or may be cut in the latter, or formed in any manner found convenient, and instead of being continuous around the collar the screw may be formed by a series of detached threads or seg ments or projections. \Vhen the thread is to be cut or formed on the collar after the latter is made, the diameter of the collar should be a little greater than that of the bore of the roller, so the screw will enter and take hold of the wood. The end plate thus constructed is attached to the roller by simply screwing the collar into the bore of the latter, when it will be firmly and securely held without any other fastening.

The connection of the spindle with the end plate, and attachment of the spring to the spindle and to the end plate or roller, and the arrangement of the spindle and spring within the roller, may be by any of the methods now in use with the ordinary construction of end plates. The outer end of the spring,when the inner end is fastened to the spindle, may be connected to the end platein any manner, and the end plate, spindle, and spring mounted thereon may all be united together, as is shown in Fig. 3, and connected with the roller by simply inserting the spindle and spring within the bore, and screwing the collar on the end plate into the latter. Thus, by my improvement, I provide on the end plate itself a ready and effective method of attaching the plate to the roller, and avoid all the trouble and annoyance caused by the use of nails or screws to fasten the plate, and do away wit-h the use of a ferrule or cap on the end of the roller for this purpose; and, moreover, by my improved method of fastening, the end plate cannot become detached from the roller while in use, as frequently happens with the mode of attachment now employed, and yet, if oocasion requires, the plate can be readily re- 5 Fig. 4,) may be formed on the edge of the inner face of the disk or plate, so as to surround or fit overthe end of the roller, and protect the same from injury.

My improved construction of end plate also furnishes a ready and secure method of attaching the outer end of thespring to the end plate and roller.

' with or affected. By this method of securing the. spring, the latter can be used just as it comes from or leaves the mandrel, Without any manipulation or preparation whatever.

I am aware that a cap carrying the roller bearing or a shell has been attached to the roller by a screw-thread formed on the inside surface of such cap; and also that the spring has been attached to the end plate by means of a smooth or unthreaded collar, as shown in Letters Patent granted to me February 19, 1884, and numbered 293,871.

What is claimed as new is- 1. In a spring shade roller, the combination, with the roller, of the end plate having a screw-thread collar centrally thereon for entering the bore of the roller, substantially as and for the purpose described.

2. In spring shade-rollers, the combination, with the roller, of the end plate having a central screw-collar for attaching the same to the roller and spindle and spring, the latter being attached by its inner end to the spindle and by its outer end to the end plate by the screwthread on the collar.

v STEWART HARTSHORN.

Witnesses:

GHAs; H. DILLEY, FRANCIS L. GRoss.