USRE11171E - Fastening for casters - Google Patents

Description

J. THINNES. FASTENING FOR OASTERS, DOOR KNOBS, AND OTHER ARTICLES.

N0.11,171. Reissued June 23,1891.

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/NVENTOFf Jim? Tfiz'nnes B) QMQ ATTORNEYS W QE (M UNI ED STATES PATENT OFFICE .TAOOB THINNES, BROOKLYN, NEIV YORK.

FASTENING FOR CASTERS, DOOR-KNOBS, AND OTHER ARTICLES.

SPECIFICATION forming part of Reissued Letters Patent No. 11,171, dated June 23, 1891. Original No. 438,506, dated October 1 4, 1890. Application for reissue filed May 16, 1891. Serial No. 393,042.

To all whom it may concern:

Be it known that I, JACOB THINNES, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Fa'stenings for Casters, Door-Knobs, and the Like, of which the following is a specification. a

This invention relates to improvements in to fastenings for such articles as casters, doorknobs, and the like; and the invention consists in the details of construction set forth in the following specification and, claim, and illustrated in the accompanying drawings,in which- I Figure 1 is a side elevationof a fastening containing my invention. Fig. 2/"IS a vertical central section of Fig. 1. Fig. 3 is a sec-- tion alongw .r, Fig. 1. Fig. -iis a detail view 20 of ascrew-rod and sleeve. Fig. 5, is a section along y y, Fig. 4. y

In the drawings, the letter (1 indicates a screw-rod having a square or angular heador end I). The rod is fitted into a slit sleeve 0,

so as to leave the screw part projecting for the reception of a screw or nut-g. In Fig. 2. is shown a screw, and in Fig.4 a nut. The sleeve is placed into a suitable recess or hole in a piece of furniture, such as the leg of a table or a hole in a door, and when now the screw 9 is tightened the head or enlarged end I) is drawn into the sleeve, so as to expand the slit portion of said sleeve and clamp the sleeve firmly in place. The square end or head of the rod prevents the rod from turning in the sleeve. The screw g, besides acting on the rod a, may also be used to secure a caster, knob, or other article to the rod, so that'when the rod is fastened in place 40 it will also retain the caster or knob. If the rod is to be removed, the screw is loosened and the rod pushed inward, so as to allow the sleeve 0 to contract, whereupon the sleeve and rod can be withdrawn from their places.

I do not claim anything shown and described in the Letters Patent issued to myself, Frederick Thinnes, and Charles Schueller, April 20, 1 875, No. 162,433. I p

In the invention set forth in said Letters Patent the screw-rod is cone-shaped from where the screw-threads terminate to its end,

so as to expand or force outwardly the slitted sleeve when the adjusting-nut is properlymanipulated, and thereby cause the projections or fins on the exterior of the sleeve to penetrate and seat themselves in the wood-work. The connection thus-made between'the projections or fins and the wood-work is so firm and tight, caused by the action of the coneshaped head and weight of the article of furniture, that it is extremely difficult to discon-,

nect the sleeve from the wood-work when it is desired to detach the same. Considerable expenseand difiicultyare sustained in forming the projections or tins on the exterior of the sleeve, and also in forming the cone-shaped portion of the screw-rod. The costand difficulty of forming both the cone-shaped screwrod and projections on the sleeve are obviated by my present invent-ion. The sleeve being free from projections on its exterior enables its removal, when desired, with comparative-ease and facility and without resorting to the use of tools or marring of the furniture. The head of the screw being angular,it can be'produced more cheaply than if cone -shaped,-and

as each angle-point of the rod bears'iu the slit between each section of the sleeve the rod exerts great positive pressure upon each section, of the sleeve when the nut on the rod is operated, causing a firm binding contact between the sleeve and the wood-work without the aid'of pins orprojections on the exterior of the sleeve, which prior to my present invention were deemed absolutely essential. By forming the rod with the angular head each of its angles enters and seats itself between the sections of the sleeve, forcing each member thereof apart, thereby expanding the sleeve and with certainty preventing the 11'0- tation of the sleeve when the nut on the rod is properly turned todraw the angular head within the sleeve, and likewise prevents the rod from turning within the sleeve. By this construction neither the sleeve nor the rod can turn when the nut is operated to draw the rod within the sleeve for the purpose of expanding the members of the slitted sleeve.

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

The improved fastening for casters, doorknobs,.and otl1er articles hereinshown and described, combining in its structure the rod to prevent turning of the rod when drawn (1, having at one end the enlarged angfilar Within the sleeve for expanding its sections, head and at its other end a screw-thread, the all substantially as herein set forth.

nut g, and .the tubular slitted sleeve 0, haw J AOOB THIN NES.

5 ing a, planeexterior surface, each angle of Witnesses:

' the head of the rod having a sent in the re- WM.- 0; HAUFF, eess between the sections of thesli'tted sleeve WILLIAM MILLER.

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