US1562547A - Automatic hammer - Google Patents

Description

Nov. 24, 1925- J. A. FARLEY AUTOMATIC HAMMER Filed June 25, 1925 2 Sheets-Sheet 1 8 nueul'or Mm A QA Nov. 24, 92 1,562,547

J. A. FARLEY AUTOMATIC HAMMER Filnd Juna 23, 1925 2' Sheetswsheet 2 .76 Q o o a 4/ r w w W 7g Enema teas.

unrriso earns Jdllfililiil A. FARLEY, 61E GALVES'EON'. TEXAtE.

A'U'IUMATIC HAMMER.

Application filed June 23, 1925.

To all whom "it 'mzr z concern;

Be it known that I, deems A. FAnLnY, citizen of the United States, residing at Galveston, in the county of Galveston and State of Texas, have invented certain new and useful Improvements in an Automatic Harm mer, of which the following is a specification.

This invention relates to improvements in automatic hammers, and has for its principal object to provide one wherein a spool oi wire is employed, means being further provided :tor cutting the wire into predetermined lengths to form nails to be driven into the desired place by the hammer.

it. further object o1 the invention is to provide an automatic hammer wherein means is provided for automatlcally feeding the wire to the cutting means as well as moving the free end of the wire outwardly from the head of the hamn'ier for a predeteri'nined length.

i further object is to provide an automatic hammer wherein the cutter is of such construction as to bed a piece of wire which has been cut to form a head on the nail whereby the latter may be readily and easily driven home.

A further object of the invention is to provide an automatic hammer ()1 the above mentioned character which will at all times be positive and etticient in its operation, the same being 'i'urther simple in its construction, ine: )Q-DSlVQ, strong and durable and further well adapted to the purpose for which it do igned.

@ther objects and advantages of the invention will lieei'nne apparent during the course of the following description taken in connection with the accompanying drawlug.

in the amonipanying drawing forming 41 part of this application, and in which like numerals designate like parts throughout the same:

Figure 1 is a side elevation 01 the automatic hanuner embodying my invention.

Figure 2 is an enlarged detail of the head oi the hammer with one of the side plates removed showing the position of the parts when the hammer is in an inoperative position.

Figure 3 is an edge elevation showing the plate construction, and the forward end oi the cutter, and also the plum Serial No. 39,090.

Figure 4 is a view similar to Figure 2 showing the position of the parts after a nail has just been cut from the strand of wire and the point thereof is driven into the object.

Figure 5 is a similar view showing the arrangement of the parts when the head oi. the hammer engages the head of the nail, and the latter driven home, and

Figure (3 is a detail perspective view of the cutter.

in. the drawing wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 1 designates generally my improved automatic hammer, the head thereof comprising a pair of spaced plates 2 and 3 respectively between which is secured the filler block l: through the mediun'i ol? the fastening bolts The handle of the hammer is designated at 6. t s is clearly illustrated in Figure 3 of the drawings, the lower ends of the side plates are bent inwardly, and the purpose tl'iereoif will hereinafter be more fully described.

The end portion of the block 4: is provided with the longitudinally extending cut out portion 7, and the inturned ends 8 of the side plates iuclose this cut out portion to provide a pocket for receiving the 'slidable plunger 9. A coil spring 10 is disposed in the rear end of the pocket and engages the inner en d of the plunger, the coil spring normally exerting an outward pressure on the plunger so as to have the forward end of the plunger normally disposed outwardly from the forward end of the head of the hammer. The outward sliding movement of the plunger is limited by reason of the transversely entending pin 11 which is operable in the longitudinally extending cut out portion 12 formed in the intermediate portion of the bottom of the plunger.

The block d is further provided with the relatively small pocket 13 which is arranged at the side of the pocket in which the plunger 9 is slidable, and arranged in the pocket 13 is the movable jaw 14L. A. flat spring 15 is also arranged within the pocket 13 and is disposed between the side of the pocket and the inner face of the jaw for normally exerting an outward pressure thereon so that the teeth 16 formed on the outer face of the movable jaw 14 will coact with the oppositely arranged teeth 17 formed in the -lace of the sliding plunger 9 in gripping and holding the wire 18 from which is to be ill) Ill

formed the nails in a manner to be hereinafter more fully described.

The wire 1.8 from which the nails are adapted to be formed is wound on a suitable spool 19, which is rotatably supported on the handle 6 by means of the bracket 20. The wire extends from the spool through the guide eye 21 and over the curved guide member 22 which is secured on the side plate 2, and thence through the opening 28 so that the same will enter the head of the hammer between the coacting faces of the plunger and movable jaw, respectively, The side plate 2 is provided with struck-out portions so that access to the spring 10 arranged within the rear end of the part 7 may be had.

Slidable in the block 4' betweenthe forward edges of theside plate is the diagonally arranged cutter bar T he lower end of the cutter bar is provided with the eut ting edge 26, and the forward end of this bar concaved as illustrated at 27, and the purpose of this particular construction will be presently erplained. The lower forward end of the cutter bar is adapted to protrude slightly beyond the forward end. of the head of the hammer so that the cutting edge 26 thereof will cooperate with the face of the forward end of the plunger 9. The upper end of the cutter bar extends into the cut out portion 28 provided in the block l and a spring element 29 is provided for normally holding the cutter bar'in its raised position.

A dog 30 is adapted for slidabl-e movement in the cut out portion 28, the upper end of said dog being provided with a longitudinally extending slot 31 in which operates the pin 32, whereby theslidingmovement of the dog is limited. The lower end of the dog is offset to provide the head 33, and the bottom face of thehead is inclined, and engages the inclined upper end'of the slidabl'e critter bar 25. A flatspring 3a is arranged in the cut out portion 28, and engages the forward edge of the dog for normally holding the same in the position as shown in Figure 2.

The block 4i is further provided with the curved cut out portion 35, thesame communicating at its lower end with the pocket 7, and at its upper end with the cut out portion 28. A curved lever 36 is disposed in the curved cut out portion 35 and is pivotally supported adjacent one end therein as at ZT. One end of the curved lever 36 engages the upper face of the offset head 33 formed on the lower end of the dog 30, while the other end of the curved lever normally rests in the notch provided therefor in the rear end of the sliding plunger 9. A flat spring 39 is provir for normally holding the curved lever the position shown in Figure 2.

Normally the parts of the hamn'ier are arranged as shown in igure 2 of the drawlIlQf, and when it is he ired to drive a nail into the desired object, a blow is struck by the forward end of the head of the hammer against the object so as to cause the plunger 9 to move rearwardly in its pocket against the tension of the coil spring 10. As the plunger moves rearwardly in its pocket, the notch 38 being beveled, will cause the other end of the lever 36 to swing simultaneously causing the other end of the cut out lever to exerta downward movement of the offset head- 33 of the slidable dog 30, and as a result, the cutter bar 25 will move downwardly so that the cutting edge 26 thereof-will cut the wire at a point adjacent the forward end of the head, thus forming a nail, illustrated at lO. This construction is clearly illustrated, as is also the arrangement of theparts. during the aforementioned operation, in Figure 4 of the drawings.

Simultaneous with the cutting. of the wire to form the nail 4-0, the cut end of the nail will ride up against the concaved face 27 of the cutter bar so as to form a head 411 on the nail so that the head of the hammer may engage the same and drive the nail into the object as is clearly illustrated in Figure 5.

During the aforementioned operations, the gripping teeth 16 and 17 will engage the portion of the wire which is disposed between the jaw and the sliding plunger, and as soon as the head of the hammer is disengaged from the object in which the nail has been driven, the spring 10 will force the plunger 9 outwardly, simultaneously causing the free end of the wire to move outwardly with the plunger, and again turn the parts to the position shown in Figgure 2. In this manner, the hammer is again ready for use.

It will thus be seen from the foregoing description, that an automatic hammer has been provided wherein the parts are so arranged so as to at all times be positive and efficientincarrying out the purposes for which the same are designated.

The simplicity in which my improved automatic hammer is constructed. furthermore enables the several parts to be readily assembled or disassembled and when all the wire has been used, a new spool may be substituted for the old one.

lVhile I have shown the preferred embodiment of my invention, it is to be understood that minor changes in the size, shape an; arrangement of parts may be re sorted to without departing from the spirit of the invention and the Scope of the appended claims.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent is I 1. An automatic hammer, comprising a head, a handle therefor, a sliding plunger arranged in the head, the forward end there of projecting beyond the forward end of the head, means for feeding the free end of a wire along the side face of the plunger, means for cutting the free end portion of the wire to form a nail, and means for forming a head on the nail.

2. An automatic hammer, comprising a head, a handle therefor, a sliding plunger arranged in the head, the forward end thereof projecting beyond the forward end. of the head, means for feeding the free end of a wire along the side face of the plunger, means for cutting the free end portion of the wire to form a nail, and means for forming a head on the nail, said means act-- ing during a single stroke of the head of the hammer againstthe object in which the nail is to be driven.

3. An automatic hammer comprising a head, a handle therefor, a sliding plunger arranged in said head, the forward end thereof projecting beyond the forward end of said head, means for feeding the free end portion of a wire along the side faceof said plunger, a cutter bar mounted in sald head for cutting the wire which projects beyond the head of the hammer to form nail, and means for actuating said cutter bar.

at. An automatic hammer comprising a head, a handle therefor, a sliding plunger arranged in said head, the forward end thereof projecting beyond the forward end of said head, means for feeding the free end portion of a wire along the side face of said iilunger, a cutter bar mounted in said head for cutting the wire which projects beyond the head of the hammer to form a nail, and means for actuating said cutter bar, said cutter bar being provided with means for forming a head on the cut end of the nail. 5. An automatic hammer comprising a head, a handle therefor, a sliding plunger arranged in said head, the forward end of said plunger projecting beyond the forward end of the head of the hammer, means for feeding the free end portion of a wire along the side face of said plunger, a cutter bar slidably mounted in said head, the lower end thereof being provided with a cutting edge for cooperation with the side face of the projected end of the plunger whereby the free end portion of the wire is cutto form a nail, a dog mounted in the head and engaging the upper end of said cutter bar, and means operable by the rearward sliding movement of the plunger for actuating said dog and said cutter bar.

6. An automatic hammer comprising a head, a handle therefor, a sliding plunger arranged in said head, the forward end of said plunger projecting beyond the forward end of the head of the hammer, means for feeding the free end portion of a wire along the side face of said plunger, a cutter bar slidably mounted in said head, the lower end gaging said dog, the inner end of the plung or being provided with a cam for cooperation with the other end of the lever.

7. An automatic hammer comprising a head, a handle therefor, a sliding plunger arranged in said head, the forward end of said plunger projecting beyond the forward end of the head of the hammer, means for feeding the free end portion of a wire along the side face of said plunger, a cutter bar slidably mounted in said head, the lower end thereof being provided with a cutting edge for cooperation with the side face of the projected end of the plunger whereby the free end portion of the wire is cutto form a nail, a dog mounted in the head and engaging the upper end of said cutter bar, and means operable by the rearward sliding movement of the plunger for actuating said dog and said cutter bar, the lower end of the cutter bar being provided with a concaved face on which the cut end of the nail is adapted to ride, thereby forming a head on the nail during a single stroke of the hammer.

8. An automatic hammer comprising a head, a handle therefor, a sliding plunger arranged in said head, the forward end of said plunger projecting beyond the forward end of the head of the hammer, means for feeding the free end portion of a wire along the side face of the plunger, a cutter bar slidably mounted in said head, the lower end thereof being provided with a cutting edge for cooperation with the side face of the projected end of the plunger whereby the free end portion of the wire is cut to form a nail, a dog mounted in the head and engaging the upper end of said cutter bar, means operable by the rearward sliding movement of the plunger for actuating said dog and said cutter bar, the lower end of the cutter bar being provided with a concaved face on which the cutter endof the nail is adapted to ride, thereby forming a head on the nail during a single stroke of the hammer, and means for returning the movable elements to their normal position after the head of the hammer is disengaged from the object in which the nail is driven.

In testimony whereof I affix my signature.

JAMES A. FARLEY.

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