US247518A

US247518A - Caster

Info

Publication number: US247518A
Authority: US
Publication date: 1881-09-27
Anticipated expiration: 1898-09-27

Description

(No Model.)

J.RIGK.

GASTEB. No. 247,518. Patented Sept. 27,1881.

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UNITED STATES PATENT OFFICE.

JAMES RICK, OF READING, PENNSYLVANIA.

CASTER.

SPECIFICATION forming: part of Letters Patent No. 247,518, dated September 27, 1881.

Application filed December 21, 1880.

To all whom it may concern:

Be it known that I, JAMES RICK, of the city of Reading, county of Berks, State of Pennsylvania, have invented a new and useful Improvement in Furniture-Casters, of which the following is a specification.

This improvement is applicable to all furniture-casters having the horn-plate free to revolve upon the pintle, and is intended to give still greater freedom and certainty to the action of the caster while shifting its position upon the floor.

Referring to the drawings herewith ,'in which similar letters designate similar parts, Figure 1 is a sectional elevation of a caster showing my improvement. Fig. 2 is a detail view of the pintle and washer.

A represents the socket-plate, which is of the usual form, and may be either plain or threaded upon its exterior cone-surface. In the former case the flange a would be a plain circular disk, and in the latter case it would have portions of its periphery cut away or made of a polygonal form.

B is the pintle, passing through the hornplate D, and then slightly reduced in diameter, as at B, for a purpose hereinafter disclosed. A space sufficient to prevent binding is left between the head I) and the washer O. This latter rests upon the shoulder 11*, formed by the reduced diameter of the pintleB,andis forced down upon the shoulder by machinery adapted for the purpose. D is the horn plate, carrying the wheelE upon the axis 0. bis the top head of the pintle.

(N0 model.)

The drawings are sufficiently explicit for the information of experts in constructing casters which require in their manufacture care only that both socket and horn-plate shall be free not looseon the pintle, and that the latter shall not bind the horn-plate between the washer O and head I), or the socketA between the washer G and head I).

This improvement gives a much freer movement to a furniture-caster than is attainable with the ordinary construction of the same.

I am aware that it is not new for washers to be placed on the pintle of acaster between the horn-plate and socket, nor for the horn-plate to revolve upon a pintle fixed or cast within the socket, nor for a horn-plate with fixed pintle to revolve free in the socket, and I do not broadly lay claim to either of these modes of operating as uncombined.

YVhat I do claim, and for which I desire to secure Letters Patent of the United States, is as follows, to wit:

In afurniture or other caster, a loose pintle, B B, headed at both ends and having shoulder b upon which rests a washer, O, in combination with horn-plate D and socket A, the horn-plate and pintle being adapted to rotate independently of each other, substantially as described.

JAMES RICK.

Witnesses: JAMES R. KENNEY, HOWARD E. BUTZ.