US106265A

US106265A - Improvement in cores for casting axle-boxes

Info

Publication number: US106265A
Authority: US
Publication date: 1870-08-09
Anticipated expiration: 1887-08-09

Description

UNITED STATES PATENT EEICE.

WILLIAM'H. HAWLEY, OF UTIGA, NEW YORK.

IMPROVEMENT IN CRES FOR CASTING AXLE-BOXES.

Specification forming part of Letters Patent No. 106,265, dated August 9, 1870. Y

To all whom it may concern:

Be it known that I, WlLLIAM H. HAWLEY, of the city of Utica, in the county of Oneida and State of New York, have invented a new and improved mode or process of casting iron axle or skein boxes around bearings ot' soft, or box, or composition metal, so that such bearings and box can be easily reamed down, of which the following is a specification:

My invention relates to the arrangement of a gutter between the edge of a rim upon the interior of an axle or skein box and the adjacent inner edge of a soft, box, or composition metal bearing within said axle or skein box. My invention also relates to the mode of casting this gutter in place; the object of my invention being to separate the inner parts of the said rim and of the adjacent edge ofthe bearing, and thus to enable the interior surface of the box and its bearing to be ream ed out without injuring or dulling the tool used in the reaming.

Figure lis a longitudinal section through the center of a newly-cast axle or skein box, showing the arrangement ofthe gutters or channels which are the subjects of this invention. Fig. 2 is a longitudinal section through the center of the axle or skein box when the rims andbearings have been reamed down, and the gutters reamed ont -or erased, and said axle or skein is in working order.

A (see Fig. l ot' drawing) is the axle or box.

j B B are bearings of composition metal resembling bronze. They may, however, be made ot' soft or box metal and the like. These bearings extend around the interior of the box, their use being to lessen the friction arising from the box revolving upon its axle or skein. C C C C are rims or elevations ot' the interior of the axle-box. The use ot' these rims is twofold: iirst, to secure the composition or soft metal bearing in position; secondly, to

support the bearing and protect it from injury by impingement of the axle. D D D D, Fig. l, are gutters within and extending around the interior of the box on each inner edge of the soft or composition metal bearings B B, and situate between them and the rims C C C C. These gutters do not uextend the entire thickness of the rims down between the edge of the composition or soft metal bearings and the rims, so as to separate said rims and bearings entirely, but 'they extend down the .height of the bead formed on the core. The height of this bead may vary according to the quantity of metal which it is desired to dress oft' or ream down. The object ot employing these gutters is to prevent the inner edge ot' the rim and the inner edge ot' the bearing from coming together during the operation of casting the box around the bearing, and tothus prevent, at the point where the rim and bea-ring would meet, their chilling and forming a substance so hard that no tool in present use can e'ectively cut said hard substance.

My mode of casting the axle or skein box around the bearing is as follows: The bearing or rin gB, of a suitable size, is rst cast of a composition metal resembling bronze, or of soft, or box, or other metal. The core-box for the axle or skein box is so made as to receive usually two of these bearings. The core is then formed inside of the composition-metal bearings. The core-box is so formed that it leaves a bead of sand on the core on each inner edge of the composition-metal bearings. After the core has been formed with these bearings upon it, it is placed in the iiask, and the axle or skein box is then cast 'around and over the bearings. By means of the sandbead, already referred'to, the inner edge of the bearing B is separated from the inner edge of the rim() or C', and thus the edges of both bearings and of the rims are kept soft, and at the common degree of hardness-only, thus enabling the interior of both bearing and rim to be reamed down.

I claim- The arrangement upon the core, as herein described, of the soft-metal bearings Band the sand-bead, whereby, in casting the box, gutters D D are left between the edges of the soft-metal bearings and the rims G C, substantially as set forth.

WILLIAM H. HAWLEY.

Witnesses ABNER B. GARDNER, DANIEL S. BARRETT.