US643481A - Caster. - Google Patents

Description

0. 0 .olv 37 hm e F d e t n e t a DI Sh s D B. A m 4, 3 4 6 n" N CASTER.

(Application led May 25, 1899.)

(No Model.)

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UNITED STATES PATENT EEICE.

ALBERT B. DISS, OF NEV YORK, N. Y.

CASTER.

SPECIFICATION forming part of Letters Patent N o. 643,481, dated February 13, 1900.

Application filed May 25, 1899. Serial No. 718,131. (No model.)

To all whom t may concern:

Be it known that I, ALBERT B. Diss, a citi- Zen of the United States, residing in the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Casters, of which the following is a speciiication.

My invention relates especially to casters adapted to bedsteads and other articles of furniture having tubular legs wherein the tubes extend down closely to the place where the caster is connected. The caster passes up into the tubular leg and is frictionally held therein, and the disk that surrounds the pintle of the caster comes against the end of the tubular leg, and in this manner the article of furniture is supported.

In carrying out my invention and in con'- nection with the caster-wheel, the jaws, and the said disk, which surrounds the pintle and upon which the tubular leg rests, I employ guides having edges parallel to the pintle, and the guides are connected to the pintle and their parallel edges bear against the inner surface of the tubular leg, so as to center the pintle in the tubular leg and hold the caster frictionally thereto. I prefer to employ a spring which presses the said parallel edges outward, so as to cause them to bind upon the inner surface of the tubular leg. I further prefer that these guides shall be in the form of metal frames, the main portions of which are parallel to each other and to the pintle, the edges of which are also parallel to each other and to the pintle, and said frames preferably have ends that are at right angles to the main portion thereof, and in these ends elongated holes are preferably made to receive the pintle, and the ends of said guideframes preferably lap, and the spring to press the same outward spans the pintle and is within between the said guide-frames.

In the drawings, Figure 1 is an elevation of the caster-wheel and perspective of the guidefralnes and spring and a section of a portion of the tubular leg. Fig. 2 is a vertical section of the same. Fig. 3 is a sectional plan at x oc of Fig. 2, and Fig. 4 represents a section and partial elevation of a modiiication.

The wheel a, jaws c, jaw-top b', pintle c, the disk d, surrounding the pintle and upon which the tubular leg rests, and the tubular leg e are all of well-known and usual forni and do not require further description. I do not limit myself to the use of the disk d, as the caster might support the tubular leg and article of furniture in some other manner.

ff' represent the guides having parallel edges 2 bearing against the inner surface of the tubular leg. Each of these guides is preferably in the form of a frame with two of such edges 2.

The guides are preferably frames of metal having ends 3 approximately at right angles to the main portions of said frames, and in each of said ends 3 there is preferably an elongated hole 4 to receive the pintle c, and the said ends 3 of one frame preferably overlap the similar ends of the other guide-frame. I employ a spring acting to force the said guide-frames outwardly, so as to cause their respective edges 2 to bind against the inner surface of the tubular leg. I prefer to employ the spring h, (shown in Figs. 1, 2, and 3,) which spring has a central hole for the pintle and spans the pintle and acts against the two inner surfaces of the guide-frames toV Y' press the same outwardly. It will be noticed in this construction that as the caster is inserted into the tubular leg the parts of the guide-frames are pressed toward one another and against the spring action and that the respective edges of said guide-frames bear against the inner surface of the tubular leg ,to hold the caster frictionally in place and to maintain the pintle centrally of the tubular leg. The upper end of the pintle is upset to form the projections 5, that hold the frames to the pintle.

In the modification of Fig. 4 I have shown that the springs to operate the guide-frames lmay be formed from continuations of the ends of the respect-ive guide-frames themselves, the one spring h being turned upward from the guide-frame f and the other spring h2 turned downward from the guideframe f. These guide-frames are alike, the one being placed the reverse of the other, the elongated holes 4 being also employed in the modification the saine as in the other figures. The action of these frames is essentially the same as the frames shown in Figs. 1, 2, and 3.

I claim as my invention- IOO l. The combination with the caster-Wheel, the jaws and pintle and a disk surrounding the pintle and upon which the tubular leg rests, of guide-frames secured to the pintle and having edges parallel to the pintle and bearing against the inner surface of the tubulear leg to hold the caster frietionally in place and center the pintle, and means for pressing the parallel edges against the tubular leg, substantially as set forth.

2. The combination with the Caster-Wheel, jaws and pintle and a disk surrounding the pintle and upon which the tubular leg rests, of guides having edges parallel to the pintle and to each other and bearing against the inner surface of the tubular leg and a spring between said parallel edges acting outwardly to press them against the inner surface of the tubular leg, substantially as set forth.

3. The combination with the caster-Wheel, jaws and pintle and a disk surrounding the pintle and upon which the tubular leg rests, of guide-frames having portions parallel to each other and to the pintle and having edges parallel to each other and to the pintle and elongated openings in the respective ends to receive the pintle, and an internal spring acting outwardly to press the said parallel edges against the inner surface of the tubular leg to center the pintle and to frctionally hold the caster in place, substantially as set forth.

4. The combination with the caster-Wheel, jaws and pintle and a disk surrounding the pintle and upon which the tubular leg rests, ofguide-frames having portions parallel to each other and ends at right angles to said main parallel portions with elongated holes in the said ends to receive the pintle, the said guide-frames being similar to each other With the ends lapping, and said guide-frames having edges that are parallel to each other and to the pintle and an internal spring spanning the pintle and adapt-ed to press the guide-frames outward and cause the parallel edges thereof to bear against the inner surface of the tubular leg to -center the pintle and to hold the easter frietionally in place, substantially as set forth.

Signed by ine this 23d day of May, 1899.

ALBERT B. DISS.

Witnesses:

GEO. T. PINCKNEY, S. T. IIAvILAND.

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