US149284A - Improvement in journal-bearings for car-axles - Google Patents

Description

W. C. BAKER. Y Journal-Bearings for CarAxles. NO .14)284,i PatentedAprlLlSM.

UNITED STATES PATENT OFFICE.

WILLIAM C. BAKER, OF NEW YORK, N. Y.

IMPROVEMENT IN JOURNAL-BEARINGS FOR CAR-AXLES.

Specification forming part of Letters Patent No. 149,284, dated April 7, 1874; application filed January 13, 1874.

To all whom it may concern:

Be it known that I, "WILLIAM C. BAKER, of the cityand State of New York, have invented an Improvement in J ournabBearin gs for Gar- Axles, 85e., of which the following is a specification:

Bearings for car and other axles have been made of babbitt-,metal cast into a cavity in the box of the axleebox; but these are liable to fracture in consequence of the box being coinparatively thin and recessed, and the babbittmetal being separate from the bearing-block. In other cases lead and soft meta-l have been employed, the object being to allow the journal to embed itselfl in the soft metal under the pressure to which it is subjected. In some instances the boxes have been bent with a hammer when they did not properly rest upon the journals; but ,in all cases the inequality of pressure at dierent ends ofthe box, in consequence of inaccuracies in the axle-box, have caused one end to wear more -rapidly than the other.

My invention is iliade with reference to ,obviating the difficulties before mentioned and causing the box to be self-accommodating to the surface of the journal. I make use of a metal box, having a lining of babbitt-metal or similar alloy soldered or otherwise united perfectly with the inner surface of the bearingblock, and this brass box is sufliciently thin to yield easily and bend to the curvature of the axle-journal; and, in order to secure a uniform and perfect pressure upon all parts of the box, I make use of a bearing-block, of iron brass box cannot become detached or broken, and, at the same time, it forms one of the most perfect Wearing materials and any inequalityof bearing is rapidly removed by the bending journal.

of the bearing-box under the weight and pressE ure to which it is subjected.

In the drawing, Figure l is a longitudinal, and Fig. 2 is a cross, section of the journalbox, axle, and bearing-block.

The axle or shaft a and journal b are of any desired character, my improved bearing or box being available with shafts and journals generally, but primarily invented for car-axle boxes. The brass or composition box d is lined with babbitt-metal or similar alloy at e, soldered or otherwise united throughout, surface to surface, so that the babbitt-metal cannot become loose or break; and the metal box d is of nearly uniform thickness, and sufficiently thin and light to allow of the box bending, if necessary, to conform to the curvature of the The iron or other strong bearing'- block 7L is adapted to fit into the hanger-housing or oil-box of car or truck; and it is concave upon its under surface, and adapted to receive the journal-box d, with an intervening sheet of india-rubber or other yielding material at i. This material conforms to the surfaces between whicliit is introduced in consequence of its yielding character, and an even bearing is produced of the one part on the other. thrust and wear; and the babbitt-metal, ex-

tending to the ends, also serves to make the boxes durable.

I claim as my invention- The brass box d, with the lining of babbittmetal permanently united to its inner surface, and made of nearly uniform thickness, so as to conform to the curvature of the journal, by bending, if necessary, in combination with' the rigid bearing-block h and intervening yielding' material i, substantially as and for the purposes set forth.

Signed by me this 10th day of January, A. D. 1874.

Vitnesses:

GEO. T. PINCKNEY, GHAs. H. SMITH.

W. C. BAKER.

The end flanges l l receive the lateral

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