US540967A - Hand-hammer - Google Patents

Description

(No Model.)

0. M00. EVELETH.

HAND HAMMER.

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CLARENCE MOQLELAN EVELETH, OF PLYMOUTH, NEW HAMPSHIRE.

HAN D-UHAMMER.

SPEUIFICATION forming part of Letters Patent No. 540,967, dated June 11, 1895.

' Application filed Maize, 1894. 3 Serial No. 512,541. (NomodeL) ton and'Stat of New Hampshire, have invented certain new and useful Improvements in Hand-Hammers, of which the following is a full, clear, and exact description.

This invention relates to hand ham mers provided with a claw at one end of their heads, for drawing or removing nails which have been driven into wood or other work. The'more particular object of the invention is to pull out the nails without marring the work they are being extracted from, and more conven-' iently orwith lesseffort; also wherebythe nails may be drawn without bending and consequently be left in a condition to be readily used over again.

The invention consists in a hammer of novel construction and provided with special attachments, including aplunger which is made separate from the handle, slides within a socket in the hammer and is adapted to project beyond the hammer head, substantially as hereinafter described, whereby the hammer: is provided with an adjustable bearing or fulcrum overor at one side of which the nails may be drawn, and the objects hereinbefore named are secured.

' Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate correspondingparts in all the figures.

Figure 1 represents a mainly sectional longitudinal view'of my improved hammer in part with its plunger extended and showing the hammer as in the act of drawing a nail. Fig. 2 is a partly-sectional longitudinal view' of the hammer in part, taken also, as in Fig. 1, through'the hammer-head in direction of its length,-but showing the plunger as shut down or within the hammer. Fig. 3 is a longitudinal section on the line a: or in Fig. 2. Fig. 4 is an inverted plan view of the plunger-head hereinafter more particularly described, and Fig. 5 is a transverse section of the same on the line y yin Fig. 4.

A isthe head of the hammer, 1) its claw end and cits socket.

D is a plunger-fitted to slide within the socket c and adapted to be projected more or less outward therefrom by a spring (1, within the wooden handle E of the hammer, when said plunger is released from engagement with a dog or finger latch G, which release is effected by pressing down on the back end of the latch against the pressure of a spring e that holds the latch at its forward end engaged with any one of a series of notchesfin one side of the plunger.

J is a rubber or other cushion on the upper end or head of the plunger to prevent marring the wood or work M, when the nailNis being drawn by the hammer and the outer end of the plunger D is projected up against the work, as shown in Fig. 1. The cushion J may be attached .to the plunger headin any suitable or preferred manner, as for instance in Fig.1 the body of the plunger is shown as provided with a socket in which fits snugly a correspondingly shaped lug or projection onthe under side of the cushion, and a pinj is passed through the body of the plunger and said lug or projection. In Figs. 4 and 5 the plunger head is shown as provided with notches j in its sides, in which notches fit loops 9' integral with the cushion J. A small screw g entering alongitudinal groove h in the plunger prevents the latter from being thrown entirely out of the hammer by the spring at when the latch G is wholly released from engagement with the plunger.

A small bolt or wire rod F, shown in dotted lines in Fig. 1, is located in the handle E, the

upper end of said bolt or rod having a hookshaped head adapted to enter an aperture in one side of the socket E near its lower end. In practice this bolt or rod extends through the wooden handle E and is threaded at its outer end and provided with a nut similar to those employed in the handles of carpenters hand-saws. The rod or bolt F serves, when its nut is screwed up, to hold the handle of the hammer in the socket, and, being located at the claw side of the hammer, prevents the joint between the socket c and handle E from opening under the strain on theclaws of the hammer, in drawing a nail.

The spring d which throws out the plunger D, is sufficiently guided by the walls of the recess in the handle E, so long as it is within such recess, butin order that when the plunger is thrown out, the part ofthe spring which then extends beyond the handle shall have a guide to prevent it from doubling up in such a way as to prevent pressing the plunger back into place, I secure a rod or wire (1' to the base of the plunger, either by inserting such rod or wire in a socket in the plunger and applying solder at that point, or by threading the socket and the rod or wire and turning the latterinto place. This wire or rod should be of sufficient length to reach to the handle E when the plunger is fully extended.

When drawing a nail N for instance, from the work M, the finger is pressed down on the back end of the latch G, which releases the latter from engagement with the plunger D, that then is shot forward or outward at its cushion end againstthe work M. The finger is then removed from the latch and the nail is drawn by the claw of the hammer, thelatch G having then self-engaged itself with the plunger. If by this operation the nail is not entirely drawn',the operation may be repeated. In this way or by these means, the hammer is provided with an expansible and contractible or adjustable bearing or fulcrum, at a fixed point or thereabout on the work, while the nail is being drawn, without marring the work, and the nail may be drawn with less effort by reason of the more efiective fulcrum. The nail may also be drawn straight or Without bending. The handle too is not liable to break and is or may be always kept at the same angle with the hammer head while drawing the nail.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination with the handle and the claw-head secured thereto and provided with a socket aligned with said handle, of a plunger movably mounted in said socket with one end flattened and adapted to be adjusted to project at different distances beyond the head to form a fulcrum for the claw, and means for locking said plunger in said socket, substantially as set forth.

2. The combination with the handle and the claw-head secured thereto and provided with a socket aligned with said handle, of a plunger movably mounted in said socket with one end adapted to be adjusted to project at different distances beyond the head and provided with a cushion adapted to form a fulcrum for the claw, and means for locking said plunger in said'socket, substantially as set points in the movement of thelatter, substantially as and for the purpose or purposes herein set forth.

4. The combination of the handle and the claw-head secured thereto and provided with a socket aligned with said handle, a plunger movably mounted in said socket with one end adapted to be adjusted to project at different distances beyond the head and form a fulcrum for the claw, a spring arranged in the socket beneath the plunger and adapted to throw the same and means for locking said plunger in said socket, substantially as set forth.

5. The combination of the handle, and the claw-head secured thereto, and provided with a socket in alignment therewith, of a grooved plunger movably mounted in said socket with one end adapted to project therefrom and form a fulcrum for the claw, one face of said plunger being provided with a series of rack teeth, a latch mounted on the head and adapted to engage said ratchet teeth, a spring arranged in said socket under said plunger, and a stop arranged in said socket and adapted to engage the groove in the plunger, substantially as set forth.

CLARENCE MGCLELAN EVELE'I'H.

Witnesses:

JOHN T. CUTTER, LIZZIE M. EVELETH.

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