US221040A - Improvement in car-axle journals - Google Patents

Description

D. 'DEVLIN Gar-Axle Journal.

lNo. 221,040. l Patented Oct. 28, 1879.

\ ATTESTI INVENTOR NYFETERS, PHOTOMTHOGRAPHER, WASHINGTON. Dv C.

UNITED VS'IIt'rtis DANIEL DEVLIN, OF

.PATENT OFFICE.

ST. LOUIS, MISSOURI.`

IMPROVEMENT IN CAR-AXLE JOURNALS.

Specification forming part of Letters Patent No. 221,040, dated October 28, 1879; application iirlcd July 7, 1879.

To all whom it may concern:

Be it known that I, DANIEL DEvLIN, of the city of St. Louis, in the Sta-te of Missouri, have invented certain Improvements in Oar-Axle Boxes and Journals; and I do hereby declare that the following specification is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

This invcntionconsists First, in the provision of a metallic bearing, ls lgrn Ikfor otherwise secured on a reduced end of the axle. Thesaid sleeve is made tapering from its center toward its ends, and turns in an ordinary brass boxing, the bearing-sgtlace of which is formed to the shape'tof the said bearing-sleeve, so that the necpssity of collaps` on the axle to limit endwise movement of the same is overcome, as the tapering collar will perform this function equally as well. The construction of my improved journal or bearing also obviates the necessity of waste in the box, as the lower face of the journal will run in a body of oil in the oilcella-r, owing to the fact that it projects below the wall of said box. It is preferred to make the reduced portions of the axle and the bore of the bearing-sleeve slightly tapering, so that in removing the carwheel from the axle there is less liability of bending the ends of the axle in pressing the bearing-sleeves off with the car-wheel.

Second, in certain details of construction, as will hereinafter more fully appear.

In the drawings, Figure l is a vertical sec tion. Fig. 2 is a top plan, and Fig. 3 is a transverse section at line X X.

A is the boxing, formed in two sections, A A2, which are united together by alap or other joint, a. The two sections may be bolted to gether by bolts, or the ordinary bolts that secure Athe box to the truck -frame may pass through the ears a a' ofthe boxing to hold the two sections together. This construction allows the boxing to be cast without cores, and hence is much cheaper than the ordinary box; and, should one section be broken, it can be readily replaced without the loss of the whole box.

B is the axle, having a reduced portion B',

on which is shrunk or otherwise secured the bearing-collar O, the bearing-surface of which tapers from its center c to its ends, as shown, and the bearing box or brass D is shaped to fit the tapering surfaces of the collar. rIhis construction obviates the necessity of collars the same, as the tapering formof the collar C performs'this function equally as well, and at the same time takes up thelubricant and evenly and perfectly distributes it to the bearing-surfaces.

It is preferred to form the bearing-collar somewhat longer than the brass or box I), and providing the projecting portions of the collar with circular grooves c, to arrest the oil and conduct it back to the oil-cellar, and thus prevent its leaking out through the axle-opening of the box aroundthe axle. The axle may also be provided with a groove, b, to assist in pre- `venting the said leakage of oil.

Again, it is preferred to have the end of the axle project a small distance outside thebearing-collar, so as to allow ahydraulic rain or other device to act when it is desired to remove said bearing-collar.

A dowel-pin may be inserted in a groove be tween the bearing-collar C and the axle B to preenttaheturning of said collar upon the axle. Byr my inproved construction the rapid wear of vthe axle-journal is overcome, and the lifetime of the same is indefinitely lengthened, for the reason that the collar or sleeve takes all the wear, and when it becomes so worn as to be unfit for use it can be readily removed and replaced by a new one without injuring the axle; and, although it is preferred to use a double-taperin g sleeve, as shown, still it is evident that a plain cylindrical sleeve can be used, and, with a collar on the end of the axle, effect the purpose above stated.

With my improved construction the axlebox -can be made to t the axle very compactly between the bearings and the Wheel,

sections.

Having thus fully described my said inven tion, what I claim is- 1. The car-axle provided with a bearing-col-l on the axle to limit the endwise movement of owing to the box being put together in two 4. The combination, with a removable bearing-collar, C, of Jche axle B, arranged to projeet outside the said bearing-collar, as and for the purpose set forth.

DANIEL DEVLIN.

Witnesses:

ROBERT BURNS, FRANK DEFFRY.

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