US354527A - Locomotive-engine-truck brass - Google Patents

Description

(No Model.)

H. A. BARNES.

LOGOMOTIVB ENGINE TRUCK BRASS.

Patented Dec. 21, 1886.

FIG. 2

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W] T NESSES n. PETER5, Phuln-Lilhogrnpher. Walhlngton. 04 c.

, UNITED STATES PATENT OFFICE.

HARRY A. BARNES, OF STEVENS POINT, \VISCONSIN.

LOCOMOTlVE-ENgGINE-TRUCK BRASS.

SPECIFICATION forming part of Letters Patent No. 354,527, dated December 21, 1886.

Application filed July 26, [886. Serial No. 209,081.

To aZZ whom it may concern:

Be it known that I, HARRY A. Bannns, a citizen of the United States, residing at Stevens Point, in the county of Portage and State of \Visconsin, have invented a new and useful Improvement in Locomotive-Engine -Truck Brasses, of which the following is a specification.

My invention relates to an improved brass, which dilfers from all other forms of locomotive-engine-truck brasses in the following features, that while in all other forms of brasses the oil is supplied to the top'of the journal along the center line of the bearing-surface bymeans of holes through the top of the brass, thus lubricating the forward half of the bearing-surface only, in my invention the oil is supplied tothejournal at the back edge of the brass before that part of the journal comes in contact with the brass, and thereby lubricates the whole bearing-surface.

The oil-holes in brasses now in general use are liable to become clogged, and in this way prevent the oil from reaching the journal. In my invention the 'oilchannels are so constructed that it is impossible for them to become obstructed, and the oil flows freely to the journal at all times. I attain the objects set forth by means of the improved form of brass illustrated in the accompanying drawings, in which- Figure 1 is a plan of the top; Fig. 2, a view of the back edge and Fig. 3, an end view.

Similar letters refer to si milar parts through out the several views.

. A is a recess in the back of the brass. B B

(No model.)

D are lugs cast 011 the brass, which fit into suitable pockets in the engine-truck box, and hold the brass in position. E E indicate the bearing-surface. The dotted lines a a a a show the position of the retaining-grooves for Babbitt or other filling. 1 t

The oil flows from the oil-p0cket in the top of the engine-truck box into the recess A, thence through the channels B B over the back edge of the brass onto the journal, which revolves in the direction of the arrow and carries sufficient oil on its surface to thoroughly lubricate the whole bearing-surface E. The channels B B being placed on top of the brass away from the "wearing-surfaces, and being made in such form that the discharge-opening is much wider than the neck, renders it impossible for them to become obstructed, and dis tributes the oil throughout a broad surface,

reducing in this way the liability to heating.

I am aware that prior to my invent-ion locomotive-engine-truck brasses have been made with lugs on them to hold them in position, and also having the bearing side filled with anti-friction nietalf I do not, therefore, claim these features as part of my invention; but

\Vhat I do claim as my invention, and desire to secure by Letters Patent, is

A journal-brass having on its top an oil-recess, A, from which lead channels B B to and over the back edge of the brass, whereby the lubricant is conveyed to the journal, substantially as described.

H. A. BARNES. Witnesses:

F. S. NIoHoLsoN, F. K. IRWIN.

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