US1024390A - Hammer. - Google Patents

Description

C. S. BODEN.

HAMMER. AP'PLIOATION FILED JAN.23,'1911.

Patented Apr. 23, 1912.

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HAMMER.

To all whom it may concern:

Be it known that I, CLARENCE S. BODEN, a citizen of the United States, residing at the city and county of San Francisco and State of California, have invented new and useful Improvements in Hammers, of which the following is a specification.

This invention relates to nail driving hainmers and particularly to self-feeding hammers.

The object of this invention is to provide a simple, reliable and substantial self-feeding hammer; and it is a particular objectof this invention to provide a magazine hammer involving a combination of elements adapted to coperate, and to deliver a nail to the driving face or head of a hammer so that the nail will be adjusted into position upon the operative end of the hammer and be in position to be driven into the material to be nailed with the driving stroke of the hammer.

The invention consists of the parts and the construction and combination of parts, as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which- Figure 1 is a side elevation in partial section of the hammer. Fig. 2 is a front end view of the hammer partly in section. Fig. 3 is a transverse sectional view on the line XX Fig. 1. Fig. 4 is a horizontal section on line Y Y- F ig. 1. Fig. 5 is a vertical section through the nail chute.

It is the desideratum to provide a hammer whereby the operator is relieved of the duty of rst temporarily setting the nail in the wood by holdingit with the hand and giving it a slight blow; and to provide a hammer of the magazine type in which the nails will be fed successively into driving position; and which may be driven home as rapidly as the hammer can be given strokes without the necessity of first delivering the nail to a position on the hammer and then l giving it a second driving blow, setting it in the material to be nailed; or in other words, my hammer is designed to automatically position the nails during the outward stroke or movement of the hammer so that the nail Specification of Letters Patent.

Application filed J' anuary 23, 1911.

Patented Apr. 23, 1912. Serial No. 604,104.

can be driven home directly and positively at each full stroke of the hammer toward the material to be nailed.

To accomplish'these results the present embodiment of the invention comprehends a hammer designated generally at A, in which 2 is an appropriate form of head of suitable material to which is secured a handle 3. F astened to one side of the handle is a nail chute or trough 4, adapted to contain a number of nails which are successively discharged from its lower end, as lat 5, into a chamber 6, formed in the hammer-head 2, and in which chamber is operable a suitably shaped pawl or separator 7 which is pivoted at S and adapted to have a transverse swinging motion into and out of the nail chamber 6 of the hammer-liead 2. The separator pawl 7, as clearly shown in Fig. 2, is formed with a series of concentric ribs or curved teeth, which are beveled on their faces to form points 8, adapted to swing across the end of the nail-feeding chute 4 and act wedge fashion to advance one nail forwardly under the face or shoulder 9 formed upon a bead or central longitudinal extending rib 10 formed upon one face of a nailfeeding plunger 11, which is provided with a portion working in complementary recesses 12 dovetailed in the outer face of the hammer-head 2. The nail-feeding plunger 11 is thus slidably mounted in the hammerhead 2 along its ways, and is normally under the down thrust of a suitable spring 13, secured conveniently to the head 2 of the hammer, so that when the hammer is lifted the spring 13 is ei'fective to advance the plunger 11 through its slides, causing its shoulder 9, formed at the end of the central rib 10, to encounter a nail, as a Fig. 2, and carry it down along the side of the head of the hammer until the shoulder 9 is even with the lower driving face 14 of the hammer, at which instant a spring 15, mounted in a recess or pocket 16 in the plunger 11, will move the nail laterally from below the face 9 into position against the driving face 14 of the hammer-head 2 where it will be sustained bymeans of a resiliently mounted detent or supporting member 17, which is automatically pulled downwardly along inclined ways 18 formed on the back of the hammer-head 2 by means of a suitable spring or other equivalent device 19, which is eective when the hammer is in the uplifted position or away from the material into which nails are being driven, to pull the detent 17 down so that it-s lower end, which is centrally concaved as at 20, will project beyond the face 14 of the hammer; and as the spring 13 advances the plunger along its ways until the feed end 9 is flush with the face 14 the spring 15 will operate to bodily move the nail into position under the :tace 14 and against the groove seat 2O in the detent 17.

In Fig. 1 the members of the hammer are shown as in the projected position clutching a nail, as at Z2, between the spring 15 and the seat 2O in the detent. Then the parts are in this position the operator of the hammer may proceed to swing the hammer with a full, firm stroke, giving it suiiicient impetus to drive the nail b under the end 14 of the hammer' home. During such a stroke, as soon as the lower end of the plunger 11 encounters the material into which the nail is to be driven, it will recede along its ways through the hammer-head 9. without materially restraining the downward motion of the hammer. Because of the fact that the operating spring 18 may be of very light tension, and when the lower end of t-he plunger 11 has been receded until it is flush with the lower end of the detent 17 these twp members will then move backwardly in unison due to the resistance of the material into which the nail is being driven; and which nail will have become suliiciently secured in the member by reason of the fact of its projection beyond the lower end or seat 20 of the detent 17. When a nail has thus been driven home and the plunger has moved backwardly during the blow, its nail abutting face 9 will again have been receded to the position shown in Fig. 1 in dotted lines, by which movement the separator member 7 will be swung outwardly under pressure of its operating spring 7 n and separate one nail from those in the chute 4, and from which it can be moved until it occupies a position against the face 9 of the plunger .1.1. The nail while it is thus being advanced by the teeth 8 is sustained on its rear edge by a plurality of stop lugs 21, as clearly shown in Fig. 2, between which are formed spaces for the clearance of the teeth 8 of the separator 7.

In order to swing the separator upwardly and allow a nail to pass from the chute 4 into the nail receiving chamber 6 in the hammer-head, there is i'ormed upon, or secured to the plunger 11 a cam projection 9.2, adapted to engage a complementary projection or lock 23 formed upon, or suitably secured to the separator 7 so that when the plunger 11 reaches the limit of its upper position the cam 22 will encounter the lug 23 on the separator 7, so as to swing the separator upwardly and allow a sufficient space between the stops 21 and the adjacent ends of the teeth 8 after it admits the one nail. As the plunger 11 starts its downward motion the cam 22 advances beneath its complementary projection 23 on its separator and allows the spring 7 a to swing the separator 7 inwardly, thus assuring the full advance of a nail as a in Fig 1 into position below the operating face 9 of the plunger.

Having thus described my invent-ion, what l claim and desire to secure by Letters Patent is- 1. An apparatus for driving nails comprising a suitable head, and resilient means '.t'or temporarily clasping the nail below the operative driving end of the head, said means including a resilient-ly supported detent longitudinally slidable at an incline on the hammer and having its lower end eX- tending below the head of said hammer.

2. An apparatus for driving nails comprising a hammer having a driving head, and resiliently mounted means upon said head for temporarily holding a nail against the operative face of the hammer-head during the driving of the nail, said means including a resiliently supported inclined detent longitudinally slidable on the hammer and having its lower end extending below the hammer head and a yielding member opposing the lower end of the detent.

3. An apparatus for driving nails comprising a suitable hammer, a nail driving face on one end of the hammer, and means resiliently mounted upon the hammer adapted to temporarily hold the nail in position against the driving face of the hammer and to recede as the nail is driven home, said means including a resiliently supported inclined detent, longitudinally slidable on the hammer and having its lower end extending below the hammer head and having a grooved seat in said lower end.

4. A hammer having a suitable handle, an operating driving face formed on one end of the hammer, a plunger for delivering nails into position below the driving face movably mounted upon the hammer, and means for temporarily supporting the nail below the driving face of the hammer, said means including a resiliently supported detent mounted at an incline on the hammer and having its lower end extending below the hammer head, said plunger having a recess, and a spring mounted in said recess and opposing said detent.

5. A self feeding hammer comprising a suitable head, a handle attached thereto, a nail chute mounted upon the hammer and adapted to deliver nails to the hammerhead, a plunger for successively feeding inlio dividual nails from the chute, said plunger having a recessed lower portion, means for carrying the nails in to position against the driving end of the hammer, and means including a spring operable in the recess of the plunger below the hammer-head and a. de tent mounted at an incline on the hammer having a lower end 'extending below the hammer-head and opposing said spring, for

Witnesses.

CLARENCE S. BODEN. Witnesses CHARLES EDELMAN,

R. C. CooK.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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