US257558A - Device for casting metals - Google Patents

Description

(No Model.)

B. (moss &'J. GABRIEL.

DEVICE FOR CASTING METALS.

Patented May 9,1882.

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UNITED STATES PATENT OFFICE.

RICHARD CROSS AND JAMES GABRIEL, OF CLEVELAND, OHIO.

DEVICE FOR CASTING METALS.

SPECIFICATION forming part of Letters Patent No. 257,558, dated May 9, 1882.

Application filed February 15, 1882. (No model.)

To all whom it may concern:

Be it known that we, RICHARD Gauss and JAMES GABRIEL, of Cleveland, in the county of Guyahoga and State of Ohio, haveinventcd certain new and useful Improvements in devices for Casting Metals; and we do hereby declare that the following is a full, clear, and exact description thereof, whereby a person skilled in the art can make and use the same,

reference being had to the accompanying draw ings, and to the letters of reference marked thereon.

Like letters in the figures indicate the same parts.

Ourimprovemcnt consists in novel means for the casting of metals and in the peculiar apparatus and devices by which the same is effected.

The object of our invention is to make more perfect castings than have heretofore been made by separating the dirt and scoria from the molten metal, so that it is not run into the mold mixed with foreign substances, but these are separated by the apparatus used, and the pure metal alone is allowed to pass into the casting.

In the accompanying drawings, illustrating our invention, Figure 1 shows a top view of the nowel or lower part of a flask prepared for casting with our improved devices. Fig. 2 shows the lower side of the cope or upper part of a flask prepared for casting with our improved devices. Fig. 3 shows a developed section, taken vertically through the parts of the flask when placed together on the irregular line a b. Fig. 4 shows a cross-section on the line 0 d of Fig. 1.

A is the gate or hole into which the melted metal is poured.

Bis a horizontal channel leading into the circular chamber 0. The channel 13 leads into this circular chamber in a tangential direction, as shown in the drawings.

D is an upright vent or opening directly above the chamber (3 for the purpose of allow: ing the metal to rise to the height required to enable it to flow into the mold.

E is a channel leading from the bottom of the chamber 0, also in a tangential direction, as shown in the drawings, with respect .to the circumference of the chamber 0. The channel E is intended to be smaller than B, so as to delay and retard the metal in the chamber 0 during its flow. The channel B leads into the upper part of O,while the channel E leads from the lower part of the same chamber.

F is a vertical channel leading from the channelE to the horizontal channel G, which pours the metal into the castingmold E. This mold H is intended to represent any form in which it is desired to cast the metal, the parts and channels leading to this being the same for all castings and intended for the purification of the metal, as will be desired.

J is a core placed in the nowel to cover the channel E, which is the only one required to be entirely below the surface of the division in the flask. This core may be made separate, as shown in the drawings, or it may be made part of the filling of the cope.

When the metal is poured into the opening A it flows into the chamber 0 in such a direction as to create a whirling motion of the metal, which agitates and stirs it so that the dirt, oxide, and scoria can rise to the top of the molten mass. This rises in the pipe D and carries all the floating impurities above the level where by any possibility they could pass into the casting, while the pure metal is forced out at the bottom through the channel E. The channel B enters the chamber G below the floating impurities and above the level of the channel E, so that the parts of the metal can separate while being stirred up in the chamber 0, the lighter and impure part passing upward into D and the heavier and pure'metal passing downward and through the channel E. Should there be any foreign substances in the molten metal heavier than it, they will remain in the bottom of the chamber 0, the rising channel F preventing their passing into the casting.

What we claim as our invention is- 1. In a mold prepared for casting {metals, the circular chamber 0, having the inlet B and outlet E in tangential directions and at ditferent levels, and the vertical opening D, substantially as described.

2. In a mold prepared for'jcasling metals, the combination of the inlet B, the circularchamber 0, the opening D, the channel E, and the vertical channel F, substantially as described.

RIGHARD GROSS. JAMES GABRIEL. Witnesses A. M. JACKSON, J. L. ATHEY.

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