US141350A - Improvement in car-axle boxes - Google Patents

Description

H. H. HILL & G M. SABGENT.

Car-Axle Boxes.

No. 141,350, Patentedluly 29,1873.

' WWW $56 9.

izwum- NITED STATES PATENT CFFICE.

HENRY H. HILL AND GEORGE M. SARGENT, OF MOLINE, ILLINOIS.

IMPROVEMENT IN CAR-AXLE BOXE S.

Specification forming part'of Letters Patent No. 141,350, dated July 29, 1873; application filed April 23, 1873.

To all whom it may concern:

Be it known that we, HENRY H. HILL and GEo. M. SARGENT, of Moline, in the county of Rock Island and State of Illinois, have invented certain Improvements in J ournal-Boxes, of which the following is a specification:

Our invention relates to journal-boxes, more especially those used in cars; and the invention consists in constructing the box of a malleable-iron shell, and then fitting therein a brass or other soft-metal lining in such a manner that when it is worn it can be removed and another substituted, all as hereinafter more fully explained.

Figure l is a perspective view of the shell and lining detached. Fig. 2 is a transverse section of the box, showing a modification. In constructing journal-boxes for railway cars it is found that brass linings are preferable to Babbitt metal, heretofore used; and it is also known that brass linings, when much heated by friction, become brittle, and are apt to break. In order to render these boxes sufficiently strong to bear the great weight placed upon them the cast-iron shells heretofore used have had to be made very heavy, thereby requiring more metal, and rendering them heavy and also expensive; and when the brass lining is cast in or on the brass shell both had to be thrown away or replaced by new ones as soon as the brass became worn or injured, thus adding greatly to the expense of keeping the cars in running order.

To remedy these difficulties is the object of our present invention, and to do this we proceed as follows: 7

'We first make a shell, A, for the journalbox, of malleable iron, which, being much stronger than ordinary cast-iron heretofore used for this purpose, can be made correspondingly lighter. This shell A is made of a form, externally, to fit it to'the frame in which it is held when in place, and has its interior face Inadeconcave or semicircular, as shown in the drawings. At each end it has a recess, f, formed in its concave face, said recess bein g preferably made shallower near each edge, as shown in Fig. 1. It also has a rectangular notch, h, formed in each end, at the center, as represented in the same figure. Having thus provided the shell A, we next cast a brass lining, B, to fit within the shell, the lining, as completed, being shown in Fig. 1. This lining, which is to constitute the bearing or wearing surface for the journal, has formed on its ends a flange, b, to fit in the recess f, and also with a shoulder or projection, c, to fit in the notch h of the shell. \Vhen thus completed, the lining B will fit accurately within the shell A, the two having a bearing over their adjoining surfaces, so that the lining will be firmly supported at all points by the shell A, thus obviating the danger of its being fractured or broken by the great weight or pressure upon it, although made comparatively very light.

It is obvious that, instead of the recesses and notches at the ends of the shell, and the corresponding flanges and shoulders on the lining, other means may be used to accomplish the same result. For instance, the shell may be made with one or more holes through or in it, as represented in Fig. 2, the lining having formed on its convex side corresponding studs to fit therein, and thus hold the lining in place in the shell.

By this mode of constructing journal-boxes it will be seen that the lining, when worn, and which in railway cars occurs in a short time, can be removed, and new ones substituted with but trifling expense or delay, and that the entire box can be made much lighter than by the ordinary methods.

The malleable-iron shell will last for a long time, and will answer for a great number of linings, while the Worn brasses can be remelted, and used over and over again.

It is obvious that these boxes can be used for other journals, also, and that the lining may be made of other metal than brass in cases where other metal will answer the desired purpose. For the special purpose, however, for which these boxes are designed, we prefer to use brass linings.

lining, B, all constructed and arranged to operate as described,'whereby we are enabled to use a light shell and replace the lining at will, as set forth.

HENRY H. HILL. GEORGE M. SARGENT.

Witnesses LUCIAN ADAMS, CHAS. M. HILL.

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