US482309A

US482309A - Bearing

Info

Publication number: US482309A
Authority: US
Publication date: 1892-09-06
Anticipated expiration: 1909-09-06

Description

(Model.)

P. H. HOLMES.

BEARING.

No. 482.309. Patented Sept. 6, 1892..

F/a. I

UNITED STATES PATENT OFFICE.

PHILIP H. HOLMES, OF GARDINER, MAINE, ASSIGNOR TO THE HOLMES FIBRE- GRAPHITE MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS.

' BEARING.

SPECIFICATION forming part of Letters Patent No. 482,309, dated September 6, 1892.

Application filed September 18, 1891. Serial No. 406,084. (Model.)

To all whom it may concern:

Be it known that I, PHILIP HENRY HOLMES, a citizen of the United States, and a resident of Gardiner, Kennebec county, Maine, have invented certain Improvements in Bearings, of which the following is a specification.

The object of my invention is to so construct a bearing made of a composition of lubricating material and fiber that the fibers will be disposed transversely and the ends of the fiber will be presented toward the bearingsurface.

In the accompanying drawings,Figure 1 is a perspective view of a j ournal-bearing, illustrating my invention. Fig. 2 is a sectional View of a journal-bearing, showing a shaft mounted therein. Fig. 3 is a perspective View of ya conimutator-brush made in accordance with my invention, and Fig.4.is a view showing a iiat bearing for use as a step or as a sliding` bearing.

I will first describe my invention in connection With the manufacture of bearings in which plumbago and fiber are compressed and bound together. I mix with finely-divided plunibago the fiber, preferably Wood liber, Which is intimately mixed with the plumbago and with aliquid in a suitable mixing-machine, the compound being then forced into suitable molds and molded into the desired form under great pressure. The molds are so arranged that the outlets for the liquid are either at the bearing-surface or directly in line with said bearing-surface, as illustrated and described in my application for patent filed January 7, 1891, Serial No. 377,028. In compressing the compound in the mold the plunger travels in a direction parallel with the bearing-surface, and consequently the iiow of the liquid is transverse, and the fibers are turned so that they will lie transversely or at right angles to the bearing-surface, or, in other words, so that they Will present their ends toward the bearingsurface. After the compound has been compressed, as described, it is dried and subjected to oil treatment, preferably to treatment with a drying-oil, and is then dried or hardened by heat. It will be understood, however, that my invention is not limited to a compound such as described above, but it can be carried out in the manufacture of bearings generally in which the fiber is embodied with a lubricating material; butI have foundby experiment that plumbago is the most available lubricating material and has the best lubricating properties. u

In Figs. 1 and 2 I have shown an ordinary journal-bearing adapted for line-shafting and axle-Work. In Fig; 3 Ihave shown a commutator-brush or current-collector, which when 'adetofplumbago andiibe'r finsuitable proportions is a good conductor of electricity, the bearing-face a in this case being at the end of the block, While the bearing-face a in the form of bearing shown in Figs. 1 and 2 is at the longitudinal groove or recess. In Figs I have shown a flat bearing or step-bearing 1n which the bearing-face a is at the top or bottom. In the block shown in Fig. 3 the fibers lie parallel with the sides of the block, while in Fig. 4 they are parallel with lthe ends, and in Figs. 1 and 2 the fibers radiate from the bearing-surface.

I claim as my invention- 1. A bearing made of aconiposition of lubricating material and fiber intimately mixed and compressed,the fibers at the bearing-surface being mainly in a direction transversely to the longitudinal line of the bearing-face.

2. Abearing made of a composition of plumbago and fiber intimately mixed and compressed, the fibers at the bearing-surface lying mainly in a direction transversely to the longitudinal line of the bearing -face, and a binder, substantially as described.

3. A bearing made of a composition of plumbagoA or other lubricating material, the ber intimately mixed and united, said bearing having a curved bearing-face, the fibers lying mainly in lines radiating from the center from which said curved face is produced, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

PHILIP H. HOLMES.

Witnesses:

WILLIAM D. CONNEE, HENRY HoWsoN.