US485706A - Harrison h - Google Patents

Description

(No Model.)

' H. H. MGELHINEY.

GASTBR. h No. 485,706, Patented Nov. 8, 1892.

illll UNITED STATES PATENT OFFICE.

HARRISON H. MOELHINEY, OF NEBRASKA CITY, NEBRASKA, ASSIGNOR TO THE MCELHINEY MANUFACTURING COMPANY, OF SAME PLACE.

CASTER.

SPECIFICATION forming part of Letters Patent No. 485,706, dated November 8, 1892.

Application tiled July 25, 1891. Renewed August 9, 1892. Serial No. 442.544. (No model.)

To all whom it may concern:

Be it known that I, HARRISON H. MCELHI- NEY, a citizen of the United States, residing at Nebraska City, in the county of Otoe and State of Nebraska, haveinvented certain new and useful Improvements in Insulated Casters; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the 1o art to which it appertains to make and use the saine, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Myinvention has relation to insulated casters; and it consists in the novel construction and arrangement of its parts.

In the accompanying drawings, Figure lis a front View of my invention. Fig. 2is a seczo tional view of my caster, and Figs. 3, 4, 5, and

6 are detail views.

My invention is described as follows: It consists of the roller A and the shank B, in the arms of which the axle b is journaled.

2 5 Said axle b is square between the arms of the shank B, and around said axle is placed the rubber packing a or other non-conducting substance. The solid part a of the roller is made of wood, iron, glass, or other hard ma- 3o terial and has secured around its periphery the rubber or otherinsulating-tire a2, and said part has a square perforation at its center, through which passes the axle b and packing a.. The shaft C of the shank B has onits upper end the globular head c, which is adapted to catch in the upper end of the sleeve D, which is secured in any 'suitable manner in the leg of the article of furniture, and thus the caster is held in the leg when the piece of 4o furniture is raised. The sleeve D may be open at the top, as shown in Fig. 3, or it may be closed, as shown in Fig. 5.

The sleeve shown in Fig. 5 is made of a single piece, having recesses CZ Z2 (see Fig. 6) to allow for the spring of the metal, so that the globular head may pass through the narrow part d4 of the said sleeve. The piece shown in Fig. 6 is folded in the middle at the dotted line and the body bulged out and the lower ends soldered in the annulus CZ. The sleeve when 5o made as described in Fig. 3 has its upper end d4 compressed, so that the opening is smaller than at its lower end; but the edges cl3 at its upper end are not soldered or otherwise united, so that they may spring apart and allow the globular head of the shaftCto pass through the upper end of the said sleeve. The packing tt around the axle extends out on either side of the roller and touches the arms of the shank B, and thus keeps the solid 6o part of the roller from touching said arms.

The object of my invention is to provide beds, chairs, dsc., with a caster that will not drop out and which is doubly insulated by lthe rubber or other insulating-tire a2 and the 55 packing a, and at the same time the tire will make a noiseless roller and one which will not mar the polished surface of the fioor.l

Having described my invention, what I claim as new, and desire to secure by Letters 7o Patent, is-

The combination of a solid wheel of, the perforated insulating packing a', passing through said wheel and extending beyond each side of the same, axle b, passing through the arms ofthe shank B,and shank B, having the shaft C, substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

HARRISON H. MCELHINEY.

Vitnesses:

JOHN '"W. DIXON, FRANK P. IRELAND.

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