US691442A - Apparatus for marking castings. - Google Patents

Description

No. 69l,442.

(No Model.)

wrmssszs Patented Ian. 2|, I902. J. .1. CARROLL.

APPARATUS FOR MARKING CASTINGS.

(Application filed. July 8, 1901.) I

INVENTOR UNITED STATES PATENT OFFICE.

JOHN J. CARROLL, OF CLEVELAND, OHIO, ASSIGNOR TO THE NATIONAL MALLEABLE CASTINGS COMPANY, OF CLEVELAND, OHIO, A CORPO- RATION OF OHIO.

APPARATUS FOR MARKING CASTINGS.

SPECIFICATION formingpart of Letters Patent No. 691 ,442, dated January 21, 1902.

Application filed July 8, 1901- Serial No. 67,416. (No model.)

To all whom it may concern.-

Be it known that I, JOHN J. CARROLL, of Cleveland, Cuyahoga county, Ohio, have invented a new and useful Apparatus for Marking Castings, of which the following is a full,

clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is avertical longitudinal section of a mold for casting draw-bars, showing types for marking the casting. Fig. 2 is a top plan view thereof. Fig. 3 is a detail sectional view showing the types in side elevation. Fig. 4 is a bottom plan view of the types. Figs. 5 and 6 are perspective views of the types.

In the manufacture of castings it is often desirable that the castings should be marked in some permanent way with a number or letter indicating the heat of the furnace from which the metal for the casting is taken and the date of the heat; but as it happens frequently that the proper heat-number cannot be known until the time when the casting is made the forming of the figures or letters in the sand of the mold is rendered impracticable. I have devised a means by which the marking of the castings can be effected sim-' ply and efficiently and the marking-symbols changed at will at any time prior to the pouring of the metal. It consists in providing the same mold in which the casting is made with a type box or case, which is placed on the sand with its inner open end flush with the matrix-cavity and adapted to receive removable types, which having been set therein present as part of the wall of the matrix the required figures or letters against which the metal can be cast. In preparing the mold to receive the metal the types expected to be used can be placed in the box in readiness for the casting; but if prior to the pouring it becomes desirable to change them any of them can be removedand replaced very quickly and without inconvenience.

In the drawings, 2 represents the drag, and 3 the cope, of a sand mold.

4 is the matrix-cavity in which a draw-bar is to be cast, and 5 is the gate through which the metal is poured.

6 is a box or case set in the sand of the cope and made,preferably, of metal, though it may be made of baked core-sand or other suitable material. The box is open at its inner end, which is flush with the matrix-cavity, and it is shaped suitably to receive a series of types 7 7, which may be made of metal, but are preferably made of core-sand and are provided at their inner ends with the desired characters formed in relief or depressed, as may be preferred. For convenience in assembling, the'outer ends of the type are correspondingly marked, as shown at the upper endof the type illustrated in Fig. 6. This mark is not used as a matrix, but as a convenient means of distinguishing the types when they have been set. The types are preferably of tapering form and made with a shoulder 1) at the side, as shown in Figs. 5 and 6, so that they may be upheld in the box or case. When assembled in the box, the types close its lower end and present a figured surface which forms on the metal cast against it the letters or figures desired. Their easy removability enables them to be quickly removed and replaced whenever such removal is necessary.

I claim- 1. In combination with a mold, a type box or case set therein, and removable types adapted to be set in the box or case with their ends-flush with the mold-cavity, and having designating characters formed on their inner JOHN J. CARROLL.

Witnesses:

- D. W. CALL,

0. K. BRooKs.

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