US113008A - Improvement in awls for heel-machines - Google Patents

Description

mi offra Lettrsratent No. 113,008, dated March 28,1871.

EN IMPROVEMENT |'N AwLs Fon HEEL-MACHINES.

The Schedule referred to in these Letters Patent andmaklng part of the same.

Know all men by these presents:

That I, HORACE H. BIeELow, of the city4 and county of Worcester, and Commonwealth of Massachusetts, have` invented'certain new andnseful Improvements in .-Awls for Heel-Machines and I ldo hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing which forms a part of this specification, and in which@ Figure l represents a front view of my improved awls as set in their supportingeplate;

Figure 2 represents a Vand p Figure 3 represents, the awl-points.

bottom view of the same,-

upon an enlarged scale, one of To enable those skilled in theart to which my invention belongs to make and use the same, I will proceed to describe it in detail.

The nature of my invention consists in the peculiar construction Oi' the awl-points and the manner of combining them with t after described. In thedrawingeir supporting-plate, as herein- .Ihe parts marked A indicate the supporting-plate,

in which the upper ends of the lawls B are vrigidly secured, and by means of which they are attached to the platen of the heel-machine.

The awls B are arranged in a semicircularrow cor;

responding to the shape of' the heel, and they are secured in the plate A by dri ving themdown through openings in. the platefrom the upper side.

The openings areslightly upper ends, and the theY counter-sinking. from being drawn out countersunk around their awls. are headed so as to 't into The awls are thus prevented of the plate A by the action of the machine when withdrawing them from the heels.

The heads of the awls rest against the platen of the l machine'when the plate A isfin working position, and

the awls are thereby prevcn ward out of place.

ted" from being forced upe The points of the awls B are of the peculiar form shown in iig. 3, being ground ofi" considerably ymore at one side, a, than at the other, so that the point is inclined to one side.

The awls tionsvthat their points incline outward from the center' of the which are set so as to incline backward.

The result of this construction and arrangement is, that when the awls B are forced down into the heels, the pressure upon the long side a of the points causes the awls to spring outward, and, thereby form the holes parallel with the .inclined edges ofthe heel.

ThevawlsA at the front edge of the heel spring backwardfin a. similar manner, so that when thernails are driven into the holes thus' i'ormed theyrwill not be too near the surface of the leather at the frontedge of the heel.

The positions of the awls in the plate A may be reversed, sol that the inclination of their points will spring Athe awls inward instead of outward. This change may sometimes be Adesirable in case the-heel should be pressed or formed with the bottom up, or

in case the -'nails by which the heels are` attached should be driven from the inside ofthe shoe or boot.

Having described my improved awls for-heel-ma-- chines,

What I claim therein as new and of my invention, and desire tosecure by LettersPatent, is-

l. The combination ofthe peculiarly-constructed awls B, with their supporting-plate A, substantially as shown and described.

2. The peculiarly-constructed awl B, the point of which is made in form as fully shown in the drawing.

HORACE H. BIGELOW.

Witnesses: THos. H. DODGE, A. E. `,PEIRCLL B are set into the plate A in such posiheeLeXcepting those at the front side, .r

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