US166773A - Improvement in molds for casting - Google Patents

Description

B. HARRIS.

Maid for Castings.

No, 166,773, Patented Aug.17,1875.

WITNESSES Q INVENTOR ll. 0/!' ATTORNEYS PETB lS FNOTO-LTTHOGRAPNEE WASHINGTON D G UNITED STATES PATENT QFFIGE.

BENJAMIN HARRIS, OF MARSHALLTOWN, IOWA.

IMPROVEMENT IN MOLDS FOR CASTING.

Specification forming part of Letters Patent No. 166,773, dated August 17, 1875; application filed November 21, 1874.

To all whom it may concern:

Be it known that I, BENJAMIN HARRIS, of Marshalltown, in the county of Marshall and State of Iowa, have invented a new and valuable Improvement in a Mold and Former; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings making a part of this specification, and to the figures of reference marked thereon.

Figure 1 is a plan view of my device. Fig. 2 is a transverse sectional view of the same, and Fig. 3 is a bottom view. Fig. 4 is a sectional detail view. Fig. 5 is a detail view.

This invention has relation to means for ap plying a lining of Babbitt metal or other suitable metal to the bearing-blocks of the axleboxes of railroad-car axles; and it consists in a rectangular mold-box, which is surrounded by flanges, and which has a bottom adapted to receive the lower edges of the bearing-block and form a close joint therewith, and also which has a raised convex portion, which corresponds in radius to the radius of the journal for which the bearing-box is designed, said block being constructed with a pouring-sprue, and with indentations to receive the bearing metal, as will be hereinafter explained.

In the annexed drawings, A designates a shallow rectangular box, from two sides of which project handles B B, and from the ends of which project dovetailed lugs a a. The central portion G of the mold-box A is convex, and in cross-section is the arc of a circle, corresponding in diameter to the diameter of the axle for which. the bearing-block D is designed. On opposite sides of the convex portion 0 are narrow flat surfaces 0 c, on which the lower edges of the bearing-block lie snugly when it is in place in the mold-box, as shown in Fig. 2. The bearing-block is constructed with a concavity, which leaves a space, 6, between it and the upper surface of the convex portion 0, to receive the lining metal g. (Shown in Fig. 4.) The bottom or concave surface of the block D has a number of indentations, h, in it, which, together with a pouring-sprue, j, will receive the lining metal, and securely attach the lining to the block.

When the block is put into the mold-box A the ends of this box tightly close the ends of the space e, so that when the lining metal 9 is poured into this space it will not escape therefrom.

It will be seen from the above description that journal-blocks can be conveniently and rapidly lined with any suitable metal, and that such lining will in every instance truly fit the axle for which it is designed.

What I claim as new, and desire to secure by Letters Patent, is-

1. A facing mold-box having a cylindrical convexity, C, on its bottom, adapted to form an unbroken concave bearing-face on the under side of the lining metal poured in through the journal-box, substantially as described.

2. The rectangular journal-facing mold-box A, provided with opposite handles B B and opposite lugs a a, at right angles to the handles, and the inside bottom of the box having a seat-molding convexity, O, substantially as described, and for the purpose set forth.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

BENJAMIN HARRIS.

Witnesses:

Rronn. CROGKER, D. O. WILBUR.

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