US643482A - Caster. - Google Patents

Description

Patented Feb. I3, i900. A. B. DISS.

CASTEB.

(Application filed. May 15, 1899.)

.(No Model.)

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' NITED STATES ALBERT B. DISS, OF NEW YORK, N. Y.

CASTER.

'SPECIFICATION forming part of Letters Patent No. 643,482, dated February 13, 1900.

Application led May 25,1899. Serial No. 718,132. (No model.)

To all whom t may concern:

Beit known that I, ALBERT B. Diss, a citizen 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 specification.

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 connection with a caster-wheel, jaws, and pintle, and a disk surrounding the pintle and upon which the tubular leg rests I employ an inverted-U frame spanning the pintle. This frame is made with wings at the respective edges, which wings are at obtuse angles to the planeof the frame and radial to the pintle, and I employ stop-lugs turned upward from theedge of the disk which surrounds the pintle, said lugs coming within the spread of each pair of radial wings, and where such frame cannot readilyloe made of heavy spring metal I employ an internal spring spanning the pintle and acting outwardly against the free ends of said U-frame to press the radial wings outward.

In the drawings, Figure lis an elevation of the caster-wheel and a perspective of the frame and spring and section of the tubular leg. Fig. 2 is a vertical section of the caster, and Fig. 3 is a sectional plan at o; os of Fig. 2.

The caster-wheel a, the jaws t, and jawtop b', the pintle c occupying a vertical position and the disk d surrounding the pintle and upon which the tubular leg e rests, are all of ordinary character and do not require further description.

f represents the inverted-U frame spanning the pintle and having a round central hole through which the pintle passes, the upper end of the pintle being upset to form the projections 3 above said frame to hold the same in place'. This frame is made with two main portions which are approximately parallel to one another and with wings at the respective edges, which wings are approximately at obtuse angles to the plane of said parallel portions of the frame and are radial to the pintle. The disk d, that surrounds the pintle, is provided with stop-lugs i, that are integral with the disk and turn upward from the edge of the disk, and which lugs come within the spread of each pair of radial wings and within the tubular leg e at the end when the leg bears upon the disk cl. Within the frame there is a spring h, spanning the pintle and having a central circular hole for the pintle, and this spring acts outwardly to press the free ends of said frame f against the stoplugs and also to press the vertical edges of the radial wings j" against the inner surface of the tubular leg, so as to maintain the pintle central to the tubular leg and to hold the caster frictionally in place to said leg. This spring h I prefer to employ, although the same may be dispensed with in small casters where the frame fis made of heavy spring metal. These stop-lugs t' act as guides to prevent the crosswise, lateral, or swinging movement to the said U-frame as if the same had a swinging movement on the pintle in a direction opposite to the outward pressure of the spring, and, coming against the inner surface of the leg, they center the caster and prevent a sliding movement under strain, thus relieving the frame f. In this way the said frame is confined, so that the pintle is positively held vertically within the tubular leg, and the parts are very simple and inexpensive to make and very efficient in use.

I claim as my invention-'- 1. The combination with the caster-wheel, jaws and pintle, and a disk surrounding the pintle and upon which the tubular leg rests, of an inverted-U frame spanning the pintle with its free ends adjacent to the disk, said frame consisting of two main approximately parallel portions with vertical bea-ring edges, the edges being approximately parallel to each other and to the pintle and a spring acting outwardly to press the said edges againstvv the tubular leg to center the pintle and holdv the caster frictionally in place, substantially as set forth.

2. The combination with the caster-wheel,

IOO

jaws and pintle and a disk surrounding the pintle and upon which the tubular leg rests, of an inverted-U frame spanning the pintle with its free ends adjacent to the disk, said frame consisting of two main approximately parallel portions with edges bent to form radial wings, the edges of the wings being approximately parallel to each other and to the pintle, a spring between the frame to press the free ends outward and stops to limit the movement of the frame outward and crosswise of the disk, 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 an inverted-U frame spanning the pintle with its free ends adjacent to the disk, said frame consisting of two main approximately parallel portions with edges bent to form radial wings, the edges of the wings being approximately parallel to each other and to the pintle, a spring between the frame to press the free ends outward, and stops formed as lugs integral with the disk and turned upward from the edge thereof and comin g within the spread of each pair of radial wings to limit the movement of the frame outward and erosswise of the disk, substantially as Set forth.

4. The combination with the caster-wheel, jaws and pintle and a disk surrounding the pintle and upon whieh thetubular leg rests, of an inverted-U frame spanning the pintle with its free ends adjacent to the disk, said frame consisting of two main approximately parallel portions with edges bent to form radial wings, the edges of Ithe wings being approximately parallel to each other andto the pintle, and stops formed as lugs integral with the disk and turned upward from the edge thereof and eomingwithin the spread of each pair of radial wings and within the tubular leg to limit the movement of the frame outward and crosswise of the disk and to center the disk and pintle, substantially as set forth.

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

ALBERT B. DISS. Witnesses:

GEO. T. PINCKNEY, E. E. PoHL.

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