US112902A - Improvement in shoemakers hammers - Google Patents

Description

tienda tetra ARTHUR CLARKE, or RoSToN'-, MASSACHUSETTS.

Letters Patent No. 112,902, dated March 21, 1871.

vlMPRovEMENT IN sHoEMAKERs HAMMERS.

The Schedule referred to in these Letters Patent and part of the Bange.

To all whom Nanay concern:

Be it known that I, ARTHUR CLARKE, of Boston,

iu the county of Suffolk and State of Massachusetts, have invented an Improved Shoemakersf Hammer; and Ido hereby declare that the following is a full, clear, and exact description thereof, reference beiug had tov the -accompanyingdrawing making part of this specification, in which-' Figures l and '2 are perspective. views of my im? proved hammer.

Figure 3 is a side view'of the hammer, having a portion of the handlebroken away- Figure 4 is an end view of the serrated head, enlarged.

Similar letters of reference indicate corresponding parts in the several iigures.

This invention relates .to hammers which are used by shoemakersw'hile "lastingtheir work.

It consists- First, in constructing, upon the curved pane of a shoemakers hammer, a striking-head iu such ,manner that, whilethis head will not in any manner interfere with the use of the pane, the latterwill not interfere with the use of the said head, as will be here# inaftcr explained.

Second, in the construction of a shoemakes hammer 'with two striking -heads and a curved; pane, `one of'which heads presents a serrated face and the other a smooth face, as will be hereinafter explained.

The following description will enable others skilled in tbe-art to. understand my invention.

In the accompanying drawing-` A represents the body of the hammer;

C, its curved pane; and

B, its handle, to which latter the body -is secured in the usual'well-'known manner of applying handles to shoemakershammers, with the addition of the washer pand screw n.

On one end of the body A head, a, is formed, having a convex lserrated face, the serratious b ot' which are arranged in concentric circles, and are preferably made elongated, as shown'in tig. 4. These serrations are intended to prevent the hammer from slipping while driving nails, and thereby to Agive confidence to the Shoemaker during such operation. By employing the circles of elongated serrations vthey will indent themselves into the nails, and not only prevent the face from slipping, but also prevent the n'ails from inclining while'being driven.

It will be seen. vlby reference to fig. 3, that the serrated face b'of the hammer is oblique to the length of the handle B. 'The object of' this is to render it unnecessary for the Shoemaker to lift' the upper arm while using the hammer. The proper angle of ob- ]iquity would be a plane intersecting the elbow-joint when the hammer is grasped naturally in the hand,

with the head d held downward, thus requiring a simple articulation of the elbow to perform the striking, if and greatly diminishing the, labor. required for such" performance.

. The circumference of the head a is rounded andV terminates in acontractedneck, which joins wit the body of the hammer.

'lhe lconvex surface of the pane G has constructed upon it a smooth striking-head, g, which, like the ser' rated head a, may be oblique to the length of the handle B, in -the same manner and for the same purpose as above described. l

The surface of the head g blends wththe convexity of the pane O nearest the edge of' the latter, while the opposite portion of this head presents a semicircular ridge, t', which will be found'very useful for raising nails which have been partially driven crooked, and for many other purposes.

One of the advantages of the hammer above described is that it combines the features of two hammersin one, so that by a simple movement of the handle in .the handv either the smooth-faced head or the serrated-faced head can be brought in use. And, in addition to the two heads, the hammer is provided with' a, curved pane, the manipulation ot' which will be facilitated by the head y serving as a purchase or fnlerum while raising one lside of a heel during the act of inserting va runner.

I am aware' that a shoemakers hammer hasbeen constructed withtwo hammering-faces, and thatsuch faceshave been/arranged in a peculiar relation to the handle. Such a hammer has no resemblance to the well-known shoemakers hammer, which has a curved pane.

Iam also aware a numberot' tools have been combined with one handle. I further am aware that a hammer with a single head at one end and a pane at the other has been provided with claws` or drawing-` jaws but there is no auxiliary head on the pane of this hammer.

Having described my improved shoemakers hammer, A

What I claim as new, and desire to secure by Letters Patent, is- 1 l. The head g, constructed upon the convex side of the pane C, substantially as described.

2. The semicircular ridge t' of the head g, rising acutely from the convexside of the pane O, substantially as described,

3. The shoemakers hammer constructed with the serrated-faced head a, the smooth-faced head g, and the curved pane C, substantiallyY as and for the purpose described.

Witnesses: ARTHUR CLARKE.

A. E. ScoTT, J. M. GHURGHILL.

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