US298567A - Claek fishes - Google Patents

Description

0M v C. FISHER.

ANVIL.

1 N0.298,567. Patented May 13, 1884.

lUNiTn STnTns aTaNT Trice@ CLARK FISHER, OF TRENTON, NEV JERSEY.

ANVIL..

SPECIFICATION forming part of Letters Patent No. 298,567, dated May 13, 1884.

`Application filed December 20, 1883. (No model.)

To all Lz/71,0717. t may concern:

Be it known that I, CLARK FIsHER, of Trenton, New Jersey, have invented certain Improvements in the Manufacture and Construction of Anvils, of which the following is a specification. v v

' My invention relates to anvils of which the body is of cast metal and the face and horn covered with steel welded thereto.

Heretofore all anvils of the above character have been made by placing in the bottom of the mold rst the steel plate which forms the face, and then the steel piece which forms the working-surface of the horn, the latter being placed with its broad end lapping partially over and resting upon the interior surface of the horn end of the face-plate, substantially as represented in Figure 1. lVhen the mold is filled, the welding is accomplished by the sweeping of the molten iron over the interior or upwardly-projecting surfaces of the steel faceplate and horn-piece, as described in Re issue No. 227 of the original patent granted to Mark Fisher and \Villiam Martin on October 16, 1847. Under the Iabove conditions it is clear that the shoulder or depth ofthe horn-surface below that of the face of the completed anvil will be equal to the thickness of the steel used for the face-plate, and that the overlapped portions of the face-plate and horn-piece will not be welded, because their overlapping surfaces simply rest upon each other in the manner represented in Fig. l, and prevent the access of molten metal between them.

In Fig. 2 is represented an anvil made by the method of which Fig. l is' designed as an illustration, and the fact that there is no welding is indicated by a slight opening between the pen-lines. rlhe thin unwelded part of the face-plate of anvils of the above construction is liable to crack off upon exposure to the hammer of the blacksmith. For many uses it is also desirable that the shoulder between the face and horn should be deeper than the thickness of the steel of the faceplate. Difficulties, however, in otherwise obtaining a perfect weld throughout the entire under surface of the face require that the steel face-plate should be thin, and this necessarily makes a low shoulder. Unless, on

the other hand, the two plates are arranged to lap upon each other, and thus form a close joint at the overlap, the molten iron escapes and flows out of the mold instead of filling it and forming the anvil.

Generally stated, my invention is carried into practice by exposing the entire interior surface of the face-plate to the action of the molten iron without having any portion of it in contact with the horn-steel, which is accomplished by leaving a space between the overlapping portions of the two plates vertically sufiicient to admit the cast metal to flow between them, whereby a more perfect weld of the contiguous extremities of these two pieces is obtained, which, as above explained, could not heretofore be secured on account of the exclusion of the molten welding metal from between the contactsurfaces to the entire distance or extent ofthe overlap.

In the manufacture of an anvil embodying my present improvement the molten metal is prevented from running through the open space between the plates by a dam either' of metal or sand core, or by a kindred suitable device, which can easily be arranged at the proper point within the mold by any practical melder. Y

In Fig. 3 of the drawings is represented an anvil constructed according to my invention.

All of the figures of the drawings are longitudinal vertical centra-l sectional elevations, any further description of which is unnecessary, except to say that A designates the body of the anvil, B the face-plate, and C the hornpiece.

The advantages of my improvement reside not only in the securing of a more perfect weld throughout the extent of the face-plate, but in securing a greater depth of shoulder, as at S in Fig. 3, and in preventing the liability of fracture in the front portion of the face-plate.

It is proper to add that the face-plates may, if desired, be made of wrought-iron instead of steel.

Having thus described my invention, I claim and desire to secure by Letters Patent*- An anvil having a steel face-plate and a steel or wrought-iron plate covering the horn, the union being effected by casting the iron IOO body on the plates, in which the adjacent extremities of the horn-piece and face-plate are In testimony whereof Ihavehereunto signed one above the other, and out of Contact with my name this 14th day of December7 A. D. each other, and in which the east metal ex- 1883. tends under the entire surface of the face-plate, CLARK FISHER.

5 and between the end thereof nearest to the In presence ofhorn andthe horn piece or plate, substantially JOHN JOLLEY, J r.,

l as and for the purposes set forth. l F. NORMAN DIXON.

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