US70486A - Improvement in apparatus for casting car-wheels - Google Patents

Description

. pally composed.

UNQIrEvDYSTnrE-s SAMUEL H. WHITAKER, OF COVINGTON, KENTUCKY.

IMPROVEMENT IN APPARATUS FOR CASTING CAR-WHEELS.

Specification forming part of Letters Patent No. l70,1186, dated November 5, 1867; vantedated October 16, 1867.

To all whom it ma/y concern:

Be it known that I, SAMUEL H. WHIT- AKER, of Covington, Kenton county, Kentucky, have invented a new and useful Mode of Casting Gar-Wheels, and other objects of iron and steel combined; and I hereby declare the following to be a full, clear, and exmore uniform density, and more free from iiaws, blow-holes, and other imperfections.

I have selected, to illustrate my invention, an arrangement of iask and press combined, employed by me to manufacture railroad-car wheels, of which iask and press- Figure l is a perspective view, showing the apparatus in condition to receive the molten iron, of which' substance the wheel is princi- Fig. 2 is an axial section of the ask, taken at that particular stage in the operation which immediately succeeds the drag F of my flask. To this drag is secured,

by bolts G and keys H, the curb or ring I, and a peculiarly-formed anged disk, J, which I style the cope or cut-off, and from which a head, K is temporarily suspended by means of bolts li The cope J has an annular flange, j, which temporarily cuts o the extreme outer portion or periphery of the interior space, the same being the part destined to receive the molten steel. I M is the central core for the axle, which core is, with the adjacent portion of the head,-

surfaces of the iiask being coated with clay l or other non-conductor, and all the parts being in position, as shown in Fig. 1, molten iron is poured in through the gate N, and while the iron is yet in a semi-molten condition the keys H and-H are drawn, andthe cope is slowly lifted, while the molten steel is poured in at the gate O, so as to entirely fill with steel the annular space surrounding the iron portion. (See Fig. 2.) The now fullycharged flask is then swung around into the press, which, being brought into action, causes the rim E to bear with great force down upon the partially-congealed steel tire, so as to reduce the same to a compact, dense, and ho mogeneous mass, and to cause it to adhere or weldrinly to the semi-molten mass of iron which it encircles, so as to make, in effect, a single casting.

Although the form here shown is that preferred by me for the manufacture of carwheels, the invention is susceptible of various modifications. For example, the power of steam or of compound levers, in combination with a screw or otherwise, may take the place of the hydrostatic press, or the compression may be effected in whole or part by rolling. I am aware that steel and iron have been compressed together at a welding heat, and therefore claim only my specic construction and mode of operation.

I claim herein as new and of my invention- 1. A flask for casting together two or more metals, consisting of the drag F, curb I, cope or cut-oft' J j, suspended head K, and gates N and O, the whole being combined and adapted to operate as set forth.

\ A2.11; the described combinationJ the flask wheel while in af semi-fluid condition, as set F I J j K N O and press A B C D E, or their forth. equivalents, for casting a steel rim, and com- In testimony of which invention I hereunto pressing and Welding the same around a.n"i1on set my hand. web 0r body While in@ semi-molten condi- SAML.H..WHITAKER.

tion7 as set forth. Witnesse-s:

3. The parts A, B, C, D7 and E, forming a GEO. H. KNIGHT, press for compressing the steel tire of a cany JAMES H. LAYMAN.

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