US182314A

US182314A - Improvement in molds for stamping-mill shoes

Info

Publication number: US182314A
Authority: US
Publication date: 1876-09-19
Anticipated expiration: 1893-09-19

Description

W. HAINSWORTH.

Moms F011 STAMPINGMILL SHOES. 110.182,314. Patented sep1.19,1a7a.

MILIEESES. T/Erllm,

Ny PETERS, PHOT0L|THOGRAFHER, W'ASHINGTON, D. C.

IlUNITED STATES WILLIAM HAINswoETE, or PITtrsBUEe, rENNsYLvANIA.

IMPROVEMENTIN MOLDS FOR STAMPlNG-NIILL SHOYES.

Specification forming part of Letters Patent No. 182,314, dated September 19, 1876 application filed February 2, 1876.

To all whom yt may concern:

`Molds for Casting Stamping-Mill Shoes and Dies; and I do hereby declare the following to be a full, clear, concise, and exact description thereof, reference being had to the accompanying drawing, making anpart of this specication, in whichlike letters indicating like parts- Figure l is a vertical sectional view of the mold employed, and Fig. 2 is a perspective View; and Fig. 3 is a side view of the shoe cast therein.

.In the casting of shoes for stampingmills a considerable loss is experienced from the breaking off of the stem at the-place of its `junction with the body of the shoe, caused, probably, by the ununiform shrinkage of the stem and body. I have overcome thisdifiiculty by casting the body part in a metal mold, and the stem part in a sand mold; and I have further cheapened. and facilitated the manufacture otlsuch shoes, and also of the, dies used in connection therewith, by providing the mold with a removable bottom, so that the same mold, with only a change of bottom, may be employed in the casting of 'shoes and diesvof ditterent lengths.

In the drawing, a, represents the one half of a cast-iron or other suitable mold, of properA diameter for the casting of the shoe B there in. Its cavity is made long enough for the 'casting therein of the greatest length ofshoe desired.

In order to ada-pt this mold for the casting of shoes of different lengths, I employ aremovable metallic bottom, b, supported on` a ledge, a', or in other suitable way. This bottom being removable, its place may be supplied by other like bottoms of the same diameter, but greater or less vertical thickness, accordingly as a shorter or longer shoe is desired.

In connection with the cast-metal mold a,

in which thebody part B of the shoe is cast,

I employ a sand mold, d, for the casting of the stem B. This sand moldv is made ig any suitable known way, and is inclosed in a fiask, c, and is provided with the usual gate c. The casting is done in the ordinary Way.

The removable bottom I also employ'in the casting of dies for stamping-mills as well as shoes.

Such dies and sleeves as are used in the art differ but little in diameter, but differ greatly in length. Hence, with removable and. interchangeable bottoms, all the sizes of dies'and shoes in general use can be cast with but very few molds.A

I am aware that it is not new to insert a stopper in the upper open end of an in got-mold for the purpose of limiting the length of the ingot to be made; but such a stopper, even if so arranged in the top of an invertedpdie-mold, would be impracticable, since the impurities of the metal, rising to thev surface, would accumulate in the working face of the die, and injure or spoil it for practical use. Hence the removable part must be inserted in the bottom, Where it performs a function which the stopper in the ingot-mold could not perform, viz., to give the die or shoe a perfectly1 smooth hard Working face, already finished for immediate use. I am also aware that stampingshoes have been cast on a chill, and hence I make no claim to a chill-faced stamping-shoe; and I am also aware that a sand mold for the stem has been combined with a solid chillmold for the body of the shoe, and such combination is hereby disclaimed.

I claim herein as my inventionl. In molds for casting shoes and dies for v stamping-millmthe combination, with a metal mold, of interchangeable bottoms, substantially as and for the purposes set forth.

2. The combination of sand mold, met-al mold, and interchangeable bottoms, within or against. which to cast the stem, body', and working face of the shoe, substantially as set forth.

In testimony whereof I have hereunto set my hand.

WILLIAM HAINswoETH.

VWitnesses:

HENRY G. OVER, J oIIN L.' HULL.

A'IEN'I OFFICE