US33846A - Improved mode of heating molds - Google Patents

Description

@Nimah HENRY MOOERS,v OF TOLEDO, OHIO.

Specification forming part of Letters Patent No. 33,@46, dated December 3, 1861.

To all wiz/0m t may concern:

Be it known that l, HENRY Moonns, of the city of Toledo, county of Lucas, and State of Ohio, have invented a certain new and useful machine, apparatus, and process for heating by means of steam the iron rings, chills, or molds whereby the tread of castiron wheels and wheel-tires for railroad locomotives, cars, and carriages and other castings are chilled or hard ened in the casting or manufacture thereof; and I dohereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a perspective view ofthe entire ring or chill forming a part of the mold designed to chill orharden the tread of the wheel, exhibiting the ends A and B of the tubes or openings to receive and pass off the steam for heating the same, as hereinafter described. Fig. 2 is a perspective of asection of said ring or chill, through the plane of its axis, presenting a view of the ends of said section and showing the section of the tubes or openingsA and B designed to convey the steam around and through said chill or ring, as hereinafter described.

The same letters indicate like parts in all the gures.

That cast-iron requiring to be chilled orhardened in the process of casting or manufacture can be chilled or hardened much more uniformly and perfectly by heated chills or molds than by the ordinary mode of using cold chills or molds, and that the tread or surface of the periphery of cast-iron wheelsor tires by heating the chills are not only much more evenly and perfectly chilled and hardened, but that the casting becomes more smooth and perfect in form, the circularity thereof not being destroyed either by warping from sudden cooling or by roughness occasioned by the agitation of the melted metal coming in contact with the cold-iron surface of the chill, has been fully ascertained and thoroughly demonstrated by practical experiment, and the invention of the process for that purpose has been patented.

The nature, advantage, and benclit to be derived from myinvention consists, principally in the following particulars, viz:

First. Heatbeing more easily,economically, and conveniently conveyed through the medium of steam, by means of tubes or proper conductors, may be carried and equalized to a much greater distance from its source without waste than in almost any other mode. Steam therefore becomes the great and important agent in accomplishing the ends and purposes of my invention.

Second. In the application of steam to effectuate my invention it may be conveyed from one ring, chill, or mold to any desirable number of a like or a different kind or character of chills or molds extending over an entire foundry, if required, communicatingauniform heat to all, which cannot be accomplished by any other known mode of heating.

Third. By the use of proper furnaces asuperheated steam may be used, and any required degree of heat may be communicated to and equalized among any desirable number of chills or molds by means of connecting tubes to any reasonable distance from the source or fountain of heat.

Fourth. By the use of steam the heating of the chills or molds can be and is done after the molds are made up and completed,which cannot be done in any other mode of heating now in use.

To enable others to make and use my invention, I will proceed to describe the mode of constructing and using the machine, apparatus, and process as have used and practiced with the same successfully.

The apparatus may be made to consist of a ring or chill cast hollow, with a tube or opening for the steam to enter at A, Fig. 1, and pass around and through the ring, with an aperture for the steam to pass out at B, Fig. l., or by a mode which Ideem preferable by making a coil of wrought-iron pipe of the requisite size which may pass around through the chill or mold, as represented by A and B, Fig. 2, once, twice, o'r thrice, or even more times in a continuous coil, according to the size of the chill or mold to be constructed, and then cast the chill or ring around or over the same, leaving the ends or the tube to protrude from the outer part of the ring or chill, as appears at A and B, Fig. 1,-so that when the same is completed the steam forced in at A will pass round as often as the coil of pipe before it passes out at B, Fig. l.

It will readily occur to any one that the chills or molds maybe multiplied or increased to any desirable extent, and by means of connectingtubes conveying heated steam from one to the other communicate the heat in regular succession to any required number until the Whole shall be equally and sufficiently heated before Jche process of casting be commenced. Thus ab one smelbing any required number of railroad, carriage, or ear Wheels, wheel-tire, or other castings may be casi; or manufactured and properly chilled or hardened at one and Jche same time.

Vhat I claim as my invention7 and desire to secure by Let/ners Patent., is-

The heating (by means of steam) the chills or molds for hardening the tread of cast-iron wheels or Wheel-tires for railroad-cars or car- 11i-ages, in the mode substantially as above described.

HENRY MOOERS.

Witnesses:

RIOHD. Morr, J. F. FRENCH.

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