US71567A

US71567A - baenakd

Info

Publication number: US71567A
Authority: US
Publication date: 1867-12-03
Anticipated expiration: 1884-12-03

Description

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IMPROVED DIES FOR SWAGING AND EORMING BUNTER-SHAPBS.

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TO ALL WHOM IT MAY C ONCERN:

Be it known that I, A. E. BARNARD, of Akron, in the county of Summit, and State of Ohio, have inventedcertain new and useful Improvements in Swages for Forging Car-Bunter Shapes; and I do hereby declare that the following is a. full and complete description of the'same, reference beiughad to the accompanying drawings, makinga part of this specification, in which- Figure 1 is al top view of a round-shouldered swage.

Figure 3 is a side view of tig. 1.

Figure 5 is an end view of the seme.-

Figure 2 is a. view of a. square-shouldered swage.

Figure 4 is a side view of iig. 2.

Figure 6 is amend view of the same.

Figure 7 is `a. view vof a. hunting-shape.

Figure 8 is a view of the two sweges 1 2 together, with a. hunting-iron between them.

Figure 9, aview of two swages, with a. hunting-shape between them.

-Like letters of reference referl to like parts in the several views.

The usuel manner of forging bunter-shapes is by takinga piece of iron, of the proper length, width, and thickness, eudley across or upona swage or former. Then, by repeated blows given by a hand-Sledge, it is bent and beaten into nthe angles of the' swage, the said' angles being similar. to -those required for the shepes. By this manner of shaping the iron, one side only is formed at a time, the opposite side, being given tothe bunter afterwards, which is a. matter of much trouble, for the reason .that right angles A,

*'g. 7, are more or less destroyed by giving the proper curve, B, to the other side of the iron, Hence, the

Alength of time.

forging of bunterirons or shapes in' the usuallmanner -is laborious end expensive, requiring much skill and i By the use of two swages, each one having the proper angle and curve forshaping the irn, and made to act one upon the other, with the. bunter-iron C placed between them, as shown in iig. 8, and operated by a power-hammer, the labor and expense of forgingthem are very much lessened, and the time correspondingly shortened, producing an ironof greater precision, und hence e better article.

The shape of these dies or sweges is shown in the drawings, ofwhieh fig. 1 isa top view of the swege for forming the curved side of theiron. B shows the curved section. Au end view ofthe same is shown in iig, 5. Fig. 2 shows the lower swage for forming the angles, and of which A are angles. An end view of the same is shown in iig. 6. v The two swages are shown as being together, with a bunter-shape between them. These male and female swages are also -shown in iig. 9, in which figure the huntingangle of the swage, as et A B', figs. 1 and 2.

What I claim as my improvement, and desire to secure 4by Letters Patent, is-

The herein-described swages for forging hunting-irons or shapes, when the same ere operated by e.A tilting or power-hammer, in the manner substantially as set forth.

A. E. BARNARD. Witnesses J. H. Bun'iuncn, J. HOLMES.

iron is shown as being placed on an inner which varies in shape,