US562944A - Machine-for loading heels with nails - Google Patents

Description

(No Model.) I 6 Sheets-Sheet 1 E. WUODWARD. Y MACHINE FOR LOADING HEELS WITH NAILS. N0. 562,944.

Patented June 30, 1896.

., Il.. Il' IIA Ill Il IIII Allllllllllllllllll AN DREW lGMHM. PHUm-UTHUWASHING'I'DN. D-C.

(No Model.) Sheets-Sheet 2.

E. WOODWARD. MACHINE FOR LOADING HEELS WITH NAILS. No. 562,944.v Patented June 30, 1896.

(No Model.) e sheets-sheet 3.

- B. WOGDWARD. MACHINE FOR LOADING HEELS WITH NAILS.

Patented JuneBO,

ANDREW EGRMAM. PHm-UTHOAWASHINGTDNAU C.

(No Model.) (i Sheets-Sheet 4,

E. WOODWARD.

MAHINB FOR LOADING HEELS WITH NlLS. No. 562,944. Y Patented June 30, 1896.

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6 Sheets-Sheet 5.

No Model.)

E. WOODWARD. MACHINE FOB. LUADING HBBLS WITH NAILS. No. 562,944. Patented June 30, 1896.

ANnREw E GRAHAMAFHDTD umawASnlNh-rDNDC vslwets--sneet e. l

(No Moda.)

I E. WOODWARD. MACHINE FOR LOADING HEELS WITH NAILS.

Patented June so, 1896.

l. n l l ANDREW RGNAMAMv PHDTOMMOYWASMNGKUM. n C

UNITED STATES PATENT OFFICE. v

ERASTUS IVOODIVARD, OF SOMERVILLE, IWIASSACIIUS'ITSASSIGN OR TO THE VOODWARD MANUFACTURING COMPANY, OF SACO, MAINE.

MACHINE-FOR LOADING HEELS WITH NAILS.

SPECIFICATION formingpart of Letters Patent No. 562,944, dated June V30, 1896. Application led January l5, 1895. Serial N- 534,963. (No model.)

To @ZZ whom t may concern.-

Be it known that 1, ERAs'rUs WooDwAED, of Somerville, county of Middlesex, and State of Massachusetts, have invented new and useful Improvements in Machines for Loading IIeels with Nails, of which the following is a specification; and I hereby declare that the following is a full, clear, and exact description of theinvention, which will en able others skilled in the art to which it appertains to make'and use the same.

My invention relates to a machine by which nails are partly driven into a pile of heel-lifts in order to form a heel-blank ready to be attached by the same nails to the shoe. One object of my invention is to .produce a machine in which the undriven or feeding` nail will control the feeding operation of the heelsupporting plate, so that if a nail is not received from the nail-raceway into the nailfeedway, and thence fed forward toward the position to be driven by the nail-driver, the heel-plate will not be moved, and the heel will thus remain stationary until a nail is so received and fed into position to be driven by the driving mechanism into said heel.'

Another object of myinvention is to pro` duce a machine in which but one nail at a time can pass from the nail-raceway into the nailfeedway, so that only one nail at a time can be fed forward into position to be driven by the nail-driver into the heel.

A These and other objects are carried out in a manner hereinafter fully and at large set forth.

My invention consist-s of mechanism by which the heel will be fed after each operation of the nail-driver, but will not be so fed unless a nail has been received from the nailraceway into the nail-feedway and fed forward into position to be driven into the heel by the nail-driver, the feeding or undriven nail thus acting to control the feeding of the heel-plate and the heel carried thereon.

My invention further consists of certain novel features hereinafter described, and particularly pointed out in the claims.

In United States Letters Patent No. 507, 7 7 2, dated October 3l, 18925, and granted to me for machines for loading heels with nails, and reissued to the lVoodward Manufacturing Company, of Saco, Maine, April 16, 1895, and numbered 11,486, I have shown, described, and claimed a machine in which the feeding of the heel-plate is regulated by the driven nails, and is not fed unless a nail is driven, whereas in the machine forming the subjectmatter of this application it is not the driven nails which control the feeding of the heelplate, but the undriven or feeding nails which control the mechanism which operates the heel-plate on which the heel is located.

In the accompanying drawings, which illustrate my invention, 'Figure 1 is a perspective view of the machine after a heel has been loaded with nails and about to be removed. Fig. 2 is a sectional detail view of the plunger and cooperating parts. Fig. 3 is an inverted plan view looking upwardly toward the bottom of the plunger. Fig. 4 is a detail View of the jaw-separator. Fig. 5 is a perspective View on a smaller scale than Fig. 1 and showing the mechanism by which the machine is actuated and for clear illustration omitting certain parts into which the nail is fed and driven into the heel. Figs. 6, 7, A8, and 9 are detail plan views showing various positions of the feeding mechanism by which the heel-supporting plate is turned after each nail-driving operation. Fig. 10 is a detail plan view of the nail-raceway and nail-feedway and showing a nail pushed forward by the nail-feeder into position to receive the impact'of the nail-driver. Fig. 11 is a detail plan view of the nail-feedway and showing the means by which but one nail at a time is allowed to pass into the nail-feedway. Fig. 12 is a plan view of the mechanism into which the nails are received one at a time from the nail-raceway and fed into position to be driven into the heel by the naildriver. Fig. 13 is an end view of the same mechanism. Fig. 14 is a side view of the same mechanism, taken on the side opposite to the nail-raceway. Figs. 14, 15, 16, and 17 represent detail views of the jaws by which the nail is held in position to be driven into the heel. Fig. 18 is a side view of the nail-feeding mechanism, taken on the side opposite-to that shown in Fig. 14. Fig. 19 is a detail view of the nail-separator. Fig. 20 isa longitudinal sectional view on the line a: aa, Fig.

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Fig. 22 is a detail perspective View ofY a governorfor controlling the operation of the feeding mechanism by which the heel-supportin g plate is operated. Fig. 23 is a detail view, in side| elevation, of the nail-feeder. Fig. 24 is a cross-sectional view taken on the line Fig. 14.

Like letters of reference refer to like parts throughout the several views.

Referring now to the drawings, (see Figs. 1 to 5,) A represents aV table suitably supported fromV the floor.

B is a plunger-head carrying the plunger C, which is mounted therein and carries the nail-driver D, and receives its motion fromV a crank-arm E, mounted on a suitable drivingshaft E', which receives its motion from any suitable power, and by means of the ordinary clutch-operatin g devices lcan be connected or disconnected from the driving power.

In the table A. there are ways F, in which moves a slide F, carrying a heel-plate F2, capable of Vrotation on an axis F2. Y On the under side of this plate there is a series of feedpins F4, adapted to engage with the feeding mechanism hereinafter described.

Aheel-holding device F5 is located above the plate F2 and holds the heels FS in position to receive the nails, and it is not herein particularly described or claimed, as said heelholding device,the heel-plate, the slide,'an'd connected to said slide and table or any other desirable manner. On the end of the crankarm E there is journaled a pitman E2, connected at its lower end to a curved arm E2, pinned on a shaft E4, which has a right-angle extension E5, having a pin moving in a vertical shaft E, fulcrumed' above on a suitable fixed shaft FF, so that the said shaft has a toand-fro motion from the power transmitted from the block E5. The lowel` end of said shaft E6 is connected by a pin ES to a block E2,mounted in an upright projection El, forming a part of the slide H, which is moved to and fro in the guideway H by the oscillations of the vertical shaft EG, fulcrumed on the shaft E7. On said slide H there is pivotal'ly connected a pawl G, pivoted at G' to the slide-H, and to its rear end there is connected one endof a spring G2, whose other end is connected tothe projection E10 at G3, the tendency of whichspri'ng is to draw said rear end toward the upright projection E10 and toY cause the forward end to move toward the ratchet-wheel J, to which is secured the sprocket-wheel J', both of which are mounted loosely on the shaft J2, having a circular headV J 3, set in the upper side of the sprocket-wheel J On the forward end of the pawl G there lis a finger G4, secured by suitable screw G5 to said forward end, and the limit of movement of said forward end,due to the tension of the spring G3, is limited by a pin GG on slide H. From the forward end of the pawl G and on one side of the finger G4 there extends upwardly a pin G7, having its upper end GS cut substantially in triangular shape.

The rotation or feeding of the heel-plate F2 is caused by the engagement of the teeth of the sprocket-wheel J with the feeding points or pins F4 on the heel-plate, and the op- Y eration of said ratchet-wheelJ and sprocketwheel J is caused by the pawl G, so that it will be understood that the feeding of the heel-plate depends upon the-movement given to the ratchet-wheel J by the pawl G, and it will be hereinafter explained how the said pawl G is caused to engage said ratchet-wheel J when a nail passes from the nail-raceway into thenail-feedway and is moved forward into position to be driven by the nail-driving mechanism into the heel, and it will be set forth how said pawl is prevented from operating the said ratchet-wheel J when a nail has not been received from the raceway into the nail-feedway and moved forward toward the nail-driving mechanism.

When the feeding operation is finished, so that the last one of the feeding points or pins, which I have marked F6, comes between the teeth of the sprocket-wheel J, a corner F7 of the heel-plate will come in contact with the knob K on the end of the arm K', extending from the hub K2, pivoted on a pin K3. Another arm K4 extends from the hub F2 to the clutch operating mechanism Ki", and the movement imparted to said knob K will release the arm K4 from said clutch-operating mechanism K5 and the machine will automatically stop. The hub K2 is provided with a handle K6, so that the lever may be operated by hand to stop the machine. A suitable spring K7 is secured to an arm K4 and to the frame of the machine, and tends to hold said mechanism in the position shown in Figs. 1 and 5, so that the tripping of the clutch-operating mechanism will take place when the corner F7 contacts with the knob K and moves it rearwardly from the position shown in Figs. 1 and 5.

The nail-driver D is secured to the bottom of the plunger C by suitable set-screw D', and on the adjacent side of said plunger there is located a jaw-separator M', adapted to move up and down in a slot M', formed in one side of the plunger C, (see Figs. 2 and 3,) and it is provided with a slot M3. The said jawseparator extends downwardly and is provided at its lower end with a wedge-shaped point M2 for a purpose hereinafter described. On one side of the jaw-separator M there is IOO IIO

arranged a link L, having a slot L2, and through the upper end of said link there is a pin L', which extends through the link into the slot M3 of the jaw-separator M, and is secured in the plunger C, and is adapted to have a movement up and down in said slot, and in the upper position of the plunger, as shown in Fig. l, said pin L' holds the jawseparator M in its upper position, and when movement is communicated to the said link L to cause it to move downward, the pin L', when it reaches the position shown in Fig. 2, moves said j avv-separator downward from the position shown in Figs. 1, 2, and 3.

In the bottom of the slot L2 there is located a pin N, to which is pinned by a set-screw an arm N', extending to and surrounding the shaft O and provided with a right-angle eX- tension Nb', partly around the shaft O, and adapted to move in a recess i 5, cut in the fixed sleeve N2. A springN3has one end secured to said sleeve N2, and the other end to a pin N4 on the upper end of the arm N. By means of this extension NG, working in the recess N5, the movements of the link L and plunger C are communicated to the fixed sleeve N2 and shaft O. By means of this recess N5 the upward movement of the arm N' with the link L and plunger C is provided for in the event of the shaft O and sleeve N2 being stopped by the fouling of the nails or other obstruction, as the extension N6 moves in a recess N5 toward the upper front edge of said recess N5, but not in contact there with, and in said upper movement of the plunger C the spring N3 is put under tension, so that after removal of the nail which caused the stopping of the nail-feeder R4 and shaft O, the spring N3 moves said sleeve N2 to its upper normal position, and the extension N6 bears against the rear upper side of the recess N5, and in such position in the downward movement of the parts communicates motion to the sleeve N2 and from said sleeve to the shaft O, on which the sleeve N2 is pinned fast, and in the upward movement of the plunger C and cooperating parts motion is communicated to the fixed sleeve N2 and shaft- O through the spring N5, the upper end of which moving upwardly with the plunger C pulls the sleeve N2 and shaft O and causes the revolution of the same in a direction opposite to that caused by the downward movement of the plunger C and cooperating parts.

In the downward movement of the plunger C the link L moves downwarly, as indicated in dotted lines, Fig. 2, and the jaw-separator M does not receive any downward movement until the pin L' reaches the bottom of the slot M2 in the upper part of said jaw-separator, and then in the continued downward movement of the plunger C the link L, jawsepa rator M, and nail-driver move together by the continued descent of the plunger C, but from the above it will be seen that the nail-driver D moves downwardly a distance equal to the length of the slot M3 in the jaw-separator M' before the jaw-separator receives any downward movement. Whenthe upper part of the slot L2 in the downward movement of the plunger comes in contact with the pin N, the shaft O is caused to rotate by the lever N' in the downward movement of the plunger, and said shaft is rotated in an opposite direction when the ascent of the plunger takes place.

On the same shaft O and to the left of the lever N', at P', there is a vertical arm P, pinned fast on the said shaft, and at its lower end is provided with a right-angle pin P2, surrounded by an antifriction-roller P5, fitting in a recess R5 of the nail-feeder R4, so that the opposite oscillations of the shaft O, which take place in the upward and downward movement of the nail-driving mechanism, are imparted through the arm P to the said 'nailfeeder R4, and moves the same forwardly and rearwardly between the plates R R'.

The link L, lever N', sleeve N2, and arm P are practically one and move together, and in the upward movement of the machine when the nail-feeder R4 comes in contact with too solid a resistance, as, for instance, a nail becomes fouled, the lever i and sleeve N2 will separate and the sleeve N2 will stop with the shaft O, and the lever N', turning on said shaft, will continue upwardly with the link L, and thus the stopping of the rotation of the shaft O by the nail-feeder R4, through the arm P encountering an obstruction, does not interfere with the upward movement of the `,plunger C and its cooperating parts, and this arrangement acts as a safety-valve to protect the working parts of the machine when a nail has become fouled in the nail-feedway, and upon the removal of the obstruction the shaft O, arm P, and sleeve N2return to their proper relative positions by means of the tension of the spring N2.

In the operation of the machine a line of nails Q' (see Figs. 10 and ll) is arranged in a nail-raceway Q, leading into the opening R2, cut in the plate R of the nail-feedin g mechanism, so that there is always a nail ready to pass into said opening R2, and from there into the nail-feedway, in a manner hereinafter described. The said nail-feeding mechanism consists of two side plates R and R', between which there is formed a nail-feedway R3, in which is adapted to reciprocate the nail-feeder R4 in its to-and-fro movements, caused by the pin P2 on the end of the arm P, mounted fast on the shaft O and fitting in a recess R5 of said nail-feeder. (SeeFigs. 1 and 18.) On the forward end of saidnail-feedingmechanism there is a block R6, secured by screws to the side R, and having an opening R7 in which the naildriver D is adapted to reciprocate, and below said opening RT there is formed between the plates R and R' the circular passage RS, (see Figs. 13, 1S, and 20,) in which the nails are pushed by the nail-feeder R4 to receive the impact of the nail-driver D in its downward movement. In one side of said block R6 there is a recess R9, in which the forward end of the IOO IIO

nail-feeder R1 moves in feeding the nails into thepassageRS. (SeeFigs.10,11,12,14,and20.)

In the upper position of the parts'shown in Fig. 1 the pin P2, with the antifriction-roller P5,tting in the recess R5 of the nail-feeder R1, moves said feeder forward from the position shown in Fig. 11 to the position shown in Figs. 10 and 12, so as to feed a nail received into the nail-feedway R3 forwardly into the nail-passage RS,to receive the impact of the nail-driver D and be driven into the heel, and the machine is so timed that in the upward movement of the nail-driving mechanism the arm P, with its pin P2, moves the nail-feeder R1 forwardly to feed another nail into the passage RS to receive the next impact of the nail-driver as it descends, and in the descent of said naildriving mechanism the pin P2 in the recess R5 moves said nail-feeder R1 rearwardly past the two openings R2, into which the nails are received from the nail-raceway Q, in order to permit another nail to pass from said opening R2 into the nail-feedway R5, in a manner hereinafter explained, so that in the upward movement of the nail-driving mechanism the shaft O rotates and through the arm P moves the nail-feeder R1 forwardly, and in the downward movement of the nail-drivin g mechanism the shaft O rotates in an opposite direction and through the arm P moves the nail-feeder R'1 rearwardly.

At the rear end of the plate R' there is cut a slot R10, open at its rear end, (see Fig. 14,) and there is adapted to move in said slot a pin R11, secured to and extending out from the nail-feeder R1. The said pin in the position shown in Fig. 14 controls the distance the feeder R1 moves forwardly, and its rearward movement is controlled by the spring R12. At one side of said nail-feeder R1 there is arranged a movable plate S, (see Figs. l0, 1 1, 14, 1S, and 24,) and referred to in this specification as the nail-separator, `the function of which is to permit but one nail at a time to pass from the vertical opening R2 into the nail-feedway R2, so that but one nail at a time can pass into the passage R8 and receive the impact of the nail-driver, and thereby prevent clogging and injury to the machine. This nail-separator, at its forward end and on the opposite side from the opening R2, is cut away and inclined inward from the top to the bottom,'as shown at S', Figs. l0 and 20. From the lower end of said separator there extends outwardly a pin S5, Fig. 1S, adapted vto move in a slot S1 of the side R. Said pin is secured at its outer end to a suitable vertical arm S5, mounted on a pin S, located in a slot S1, formed in said vertical arm S5, and the plate SS is arranged on the outside of said arm, and through it the pin S passes to hold said arm in place. To the upper end S2 of said arm (see Figs. 12, 18, 19, 21, and 24) there is rigidly secured a horizontal pin S12, and near the outer end of said pin there is an antifriction-roller S11, which is adapted always to be in contact with an upward extension R11 of the nail-feeder R4, on one side of the recess R5, (see Figs. 12, 14, 18, and 21,) so that the forward movement of the nail-feeder R4, caused by the arm P in the upward movement of the nail-driving mechanism, imparts movement to the vertical arm S5 and moves it into the position shown in Figs. 12, 14, and 18, so that the upper end moves forwardly and the lower end moves rearwardly, and with it the pin S3 and the nail-separator S, so that the rear end of the separator S projects beyond the plates R R.

In the downward movement of the naildriving mechanism the arm P, through its pin P2, imparts a rearward movement to the nail-feeder R4, and as the upper projection R14 reeedes from the antifriction-roller S11 on the pin S10 the spring R12, secured to the nailfeeder R4 by a pin R12, and to the extreme end of the pin S10, exerts its tension and pulls the upper end of the vertical arm S5 rearwardly, which, being mounted on the pin S6, throws the pin S3 at the lower end forwardly in the slot S2, and thereby imparts a forward movement to the nail-separator S, and in said forward movement as it passes the vertical opening R2 the upper partof the pointed end S passes in between two nails in the line of nails in the opening' R2, and moves one nail into the nail-feedway R3, (see Fig. 11,) the inclined side of said separator acting to push one nail into the nail-feedway, so that there is always one nail in said feedway ready to be fed forward by the nail-feeder R1 as it moves forwardly in the upward movement of the naildriving mechanism.

The pointed end of the nail-separator S in passing between two nails moves but one into the feedway and cuts off the nails back of the nail forced into t-he nail-feedway, so that but one nail at a time can be received into the said nail-feedway. The machine is so timed that the forwardr end of the nail-feeder R1 is within the block R when the nail-separator has passed back of the first nail on the line of nails in the opening R2, (see Fig. 10,) and by such an arrangement more than one nail is prevented fromv passing into the nailfeedway R2 in front,of the nail-feeder R1, as said separator closes the opening R2 until the nail-feeder has passed in advance and closes said opening R2, so that another nail cannot pass into said nail-feedway Thus it will be seen in the upward and downward movement of the nail-driving mechanism the pin P2 imparts, respectively, a forward and rearward motion to the nail-feed R4, and the rearward and forward movements of said nailfeeder actuate the nail-separator S in its forward and rearward movements, but the forward movement of the nail-feeder RJg causes the rearward movement of the nail-separator S, and the rearward movement of said nailfeeder causes the forward movement of said nailfseparator, as previously described.

It is obvious that in no case can the nails in the opening R2 pass into the nail-feedway ICO IIO

R3, as the forward wedge-shaped end S in its forward movement passes between two nails as the nail-feeder R4 begins its rearward movement, and when said nail-feeder has passed rearwardly of the opening R2 one nail is fed in the nail-feedway by the forward end of the nail-separator, (see Fig. 11,) so that in no case can more than one nail have uninterrupted movement into the nail-feedway R3, because when the separator is in its rearward position the nail-feeder is in its forward position and closes access to said feedway R3, and when the nail-feeder RJi begins to recede the separator moves forward, and wh en the nail-feeder has passed rearward of the opening R2 the nail-separator has passed in between two nails and fed one into said feedway and blocked the other nails from passing therein. On the inner side of the plate R (see Fig. there is provided an inclined wedge-shaped recess R13, into which the inclined wedge-shaped end S of the separator S is adapted to fit in its forward limit of movement.

At the forward end of the plate R there is pivoted at U' the nail-holding jaws U, inclined inwardly near their lower ends,as shown at U3, and normally held together by the spring U3, secured to the pins U4 on the side plate R', and against the upper sides of said jaws there is arranged a plate T, secured to the side R', iu order to assist in holding the jaws in their proper positions. The said jaws are substantially of the same construction, and have two offsets U5 and U6 at their lower ends, which iit, respectively, under the lower end of the plate R and the offset R13 of the plate R, (see Fig. 13,) and at the lower end of said jaws there is formed in each jaw a recess U1, which match and together form a circular passage U3, when the jaws are held closed by the spring U3, and said circular passage is about the same diameter as the body of the nail, and in the lower end of one of the jaws, as shown in Fig. 14, a movable pin U9 is located, its forward end extending outwardly in the recess U7 about half-way across the passage U3, and against its rear end a spring U10, secured to the upper part of said jaw, bears and tends to hold said pin Ug out into the passage U3. )Vhen a nail is fed forward' into the passage R8, it falls vertically in the passage U8, formed by the recesses U7 in the two jaws, and is` held in this position by the pin U11, which slightly yields to the fall of the nail Q, which is held in a position (shown in Fig. 16) ready to receive the blow of the naildriver and be driven into the heel, the two jaws thus acting to hold the nail vertically, so that it will be driven straight into the heel.

As shown in the drawings in dotted lines, Fig. 14, and full lines, Fig. 1, the jaw-separator M, with its wedge-shaped point M3, reciprocates between the jaws U, and, as previously stated, the machine is so timed that the piu L does not reach the lower end of the slot M3 in the upper end of the jaw-separator until the nail-driver D has acted on the upper shaped pin V6.

end of the nail and driven it partly into the heel, and then the jaw-separator moves downwardly with the continued downward movement of the nail-driver and separates said jaws, in order that in the revolution of the heel the nail may pass from between the recesses UT at the lower end of the jaws, and thus permit the movement of the heel, and the part of the heel to receive the next nail comes under the said passage U3, as at the beginning of the upward movement of the nail-driving mechanism the feeding mechanism acts on the pins F1 to revolve the heelplate for the heel to receive the next nail, so that as the jaws are separated at the downward limit of movement of the nail-driving mechanism the nail driven into said heel leaves said passage U3 at the beginning of the upward movement of the nail-driver D and before the jaws close by the upward movement of said jaw-separator M, and from the above it will be seen that the nail is held by said jaws and is driven a sufficient distance in the heel to guide it during the rest of the driving operation before the jaw-separator acts on said jaws to move them from the nail, and by this provision the nail is driven straight into the heel the entire distance before the jaws are opened the full distance to release said nail from the recesses U1.

Pivoted to the upper side of the plate R at V there is a device V,which will be called a nailfeeler, having its forward end V3 partly across the forward end of the nail-feedway R3, (see Fig. 12,) owing to the tension of the spring V3, secured at one end to a pin to the under side of said nail-feeler, and at the other end to a pin on which one of the jaws is pivoted, and tends to hold said feeler partly across the opening of the nail-feedway R3. In the side and at the forward end of the nailfeeder R1 there is cut a slot R16, (see Fig. 23,) which is of sufficient depth to receive the forward side V2 of the nail-feeler V and pass by the same without imparting any movement to the said nail-feeler, so that the nail-feeder in its forward movements does not itself actuate or give any motion to the nail-feeler by contact with the forward end V2 of said feeler. The said feeler is provided with two other arms extending in different directions, V3 and V4, the arm V3 having a recess to receive one end of the rod 1V, hereinafter referred to, and' the arm V4 having at its extreme end a wedge- N ow if by any chance the nails in the raceway and in the opening R3 should become exhausted or not properly fed, so that there is no nail to pass into the nailfeedway, the reciprocations or movements of the nail-feeder R1 and separator S do not affect the position of the nail-feeler shown in Fig. 12, or give any motion to the nail-feeler, and the nail-feeler remains in its normal position, as shown in said figure, as the recess R1i in the nail-feeder R4 receives the forward end V2 of the nail-feeler therein, and imparts no movement whatever to the said nail-feeler,

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Now if a nail is moved into the nail-feedway R3, as hereinbefore described, in the position shown in Fig. 11, it rises on the top of the said nail-feedway by its collar and its shank projects downwardly in the said feedway, and as the feeder reciprocates and moves said nail forwardly its shank comes in Contact with the forward end V2 of the nail-feeler and moves the same from the raceway toward the position shown in Fig. 21, throws the pin VG on the inner side of the arm R47, extending from the side of the nail-feeder R4, (see Figs. 21 and 23,) and in the forward movement of the nail-feeder R4 the arm R" acts on said pin V6 and imparts continued movement rearwardly to the forward side V2 and arm V3, and moves the same into the position shown in Fig. 21, with the pin VG resting in the recess V7 on the arm R17, and from this recess VT the pin V6 easily passes, owing to the roundness of its contacting side in the rearward movement of the nail-feeder R4. This rearward movement of the arm V3 is communicated to the rod W', secured to a vertical arm XV', (see Figs. 12, 13, 14, 18, 2l, 22, and 2th) having at its upper end'a suitable set-screw XV2, and at its lower end said arm XV' passes through a horizontal arm XVS, having a suitable set-screw to adjust the position of the vertical arm XV', and at its extreme lower end there is secured a rectangular-shaped plate X, secured to said vertical arm W' by a screw X'. The said arm W3 is secured to a horizontal moving block XV4, located in a suit-able recess XVG, formed between the plates R and R', and its forward limit of movement is regulated by a pin XVG, which is adapted in the forward movement of the said block to contact with a suitable depending plate XV7 and limit the said forward movement, and the rearward movement of said block XV4 is against the tension of the spring XVS, secured to a pin XVO on the side R', an d at the other end around the rear end XV9 of the rod W, and the tendency of said spring is normally to draw said block W4 to said forward position. The motion imparted by the arm V3 of the nail-feeler V, caused by the passage of a nail through the nail-feedway R3, actuates the forward end V2thereof, so that the pin V(i passes inside the arm R1T and gives a rearward motion to the rod W, vertical arm XV', and block W4, so that the parts assume the position shown in Fig. 21.

Referring now to Figs. 6, '7, S, and 9, the plate X on the lower end of the arm XV', when no nail has been fed into the nail-feedwayRS, will be located on the inner side of the upper end GT of the pin GS, as shown in Figs. G and 7, and in the reciprocating motion of the slide H the pawl G is lifted, as shown in Fig. 7, and'does not engage a new tooth J 5, but will pass over into the same tooth J4, which it previously fed when a nail had been driven. XVhen, nhowever, a nail has been fed and the block XV4 and the plate X have been lmoved outwardly into the position shown in Fig. 21, the said plate X passes to the outer side of the upper end G7 of the pin GS on the pawl (see Figs. 8 and 9) and holds said pawl downwardly in the position shown, so that the upper end GT of the pin Gson the pawl passes on the inner side of the plate X, and the pawl G, being held in its downward position, the finger G4 in the continued forward movement. of the slide H engages with the next tooth J5 of the .ratchet-wheel J and actuates theY same, and with it the sprocket-wheel J'. (See Figs. S and 9.) This wheel J engaging with the feeding-pins F4 on the heel-plate F2 causes a movement to the heel-plate and heel and swings said heel into position to receive the next nail to be driven.

It will be seen that as many nails will be driven in theheel as there are feeding-pins F4, and it will also be understood that the heel-plate F2 will be turned as long as a pin F4 lies in the depression in the sprocket-wheel J the feeding operation being in a direction indicated by the arrow in Fig. 5.

The movement of the sprocket-wheel J', caused by the pawl G, begins as the naildriver starts to ascend, but the jaw-separator M does not begin its upward movement until the pin L' reaches the upper endv of the slot M2, when both nail-driver D and jaw-separator M continue together their upward movement, so that by this arrangement the jaws are held open by the said separator su fiicient time to permit the driven nail to leave the passage Us, after which, as the jaw-separator moves upwardly with the nail-driver, the jaws close to their normal position to receive the next nail fed forward by the nail-feeder R4,

so that after each nail has been driven the nail-driving mechanism starts its upward movement, followed by the upward movement of the jaw-separator when the pin L' reaches the upper end of the slot M2, and the feeding operation of the heel-plate takes place through the pawl G, slide H, oscillating shaft E, pitman E2, and coperating parts.

As shown in Fig. 18, the arm S5 is loosely mounted on the pin S6 by means of the slot S7, and the object of thus loosely mounting the arm S5 on the pin S6 is to provide a lost motion of the movement of the upper end S of the arm S5, in that, as the nail pusher or feeder R4 begins either to move forwardly or to move rearwardly, due to the oscillation of the arm P, pin P2, and friction-roller P2, mounted in the nail-feeder R4, the effect of such movements is not immediately imparted IOO los

- the nail-feeder R4 is communicated through the arm S5, bearing on the pin S6, and through the pin S3 working in the slot S4 to the nailseparator S, so that with the nail-feeder R4 in its forward position, as shown in Figs. l0 and 18,'as it begins its rearward motionit does not effect or produce a forward movement to the nail-separator S until the opposite side of the slot away from the pin S6 moves over to and bears on said pin as a center, and then the continued rearward movement of the nail-feeder R4 imparts through the pin S3, at the lower end of the arm S5, a forward movement to the nail-separator, and when a forward movement is imparted to the nail-feeder R4 the same amount of forward movement is given said nail-feeder R4 before its continued movement is imparted to the nail-separator S to withdraw it to its rearward position.

From the above it will be seen that in both the forward and rearward movements of the nail-feeder R4 there is allowed a certain amount of movement which is not communicated to the nail-separator S.

Now, referring to Fig. l1, in which the nailfeeder R4 is shown in its rearward position and the nail-separator in its forward position, the forward movement of the nail-feeder R4 is not communicated to the nail-separator S to produce a rearward motion until said nailfeeder R4 reaches the opening R2, when the' continued movement forward of said nailfceder imparts a rearward movement of the nail-separator S, and in the continued forward movement of the nail-feeder R4, as it passes by and closes the opening R2, the nail-separator S is withdrawn from between the nails to the position shown in Fig. lO, and by this means only one nail at a time can pass into the nail-feedway R3 in position to be moved forward by the nail-feeder R4, as the nailscparator S holds the nails in the raceway from continued downward movement until the nail-feeder R4 has passed beyond the opening R2 and is moving one nail forwardly into position to be driven, and as soon as the said nail-feeder R4 has passed beyond the opening R2 the opposite end of the slot S7 has reached a bearing on the pin S, and then the continued forward movement of said nail-feeder R4 is communicated to the nail-separator S, which, through the pin S3 at the lower end of the arm is withdrawn to its rearward position, as shown in Fig. l0. Now with the nail-feeder R4 in its forward position and the nail-separator S in its rearward position, as shown in Fig. lO, the beginning of the rearward movement of the nail-feeder R4 is lost to the nails separator S until the said feeder approaches end, gradually pushes one nail into the nailfeedway R3 as the nail-feeder R4 uncovers the opening R2 into the nail-feedway R3, so that this rearward lost motion is pro vided that the nail-separator S will not move forwardly between the nails and attempt to crowd or push a nail into the nail-feedway R3 until in its rearward movement the nail-feeder R4 begins to uncover the opening R2, leading into the nail-feedway R3. If this lost motion was not provided, the nail-separator S would move in between the nails an d tend to push a nail into the nail-feedway R3, occupied by the nailfeeder R4, but by this provision the nail-separator S does not begin to move between the nails until the front end of the nail-feeder R4, in its rearward movement, is near the opening R2, and as the wedge-shaped end S of the nail-separator S gradually moves between the nails the nail-feeder -R4 recedes and passes by the opening R2 as the nail-separator S forces a nail into the nail-feedway R3 and blocks the other nails from passing into the nail-feedway R3.

Y represents a suitable pin in the table A, Fig. l, directly in the line of movement of the nail-driver, and over which the various feeding-pins F4 rest in the revolution of the heel in alinement with the nail-driver D to present a solid bearing for the heel to the blow of the nail-driver.

Z represents two bolts which pass through the plates R and R' of the nail-feeding mechanism and secure the same in the position shown, the other ends of said bolts being secured to a suitable casting on the side of the machine.

The power is started through a vertical rod K8 of the clutch-actuating mechanism on the side of the machine,and the upper end of said rod may engage with any suitable clutch mechanism for throwing on or o the power.

from the driving-shaft, and the lower end of said rod extends below the table to a suitable foot-treadle. When the last nail has been driven, the proj ection F7 in the revolution of the heel-plate strikes the knob -K and throws the end of the arm K4 away from its connection with the clutch-operating mechanism K5, and the machine is automatically stopped,or, if desired, the machine can be stopped at any time by the operator moving the handle K6 to slip the arm K4 from connection with the clutch-operating mechanism.

From the foregoing description it will be seen that each nail fed forward by the nailfeeder and driven into the heel has, in its passage toward the nail-driving mechanism, actuated the nail-feeler, and through the nailfeeler the governor or controller of the feeding mechanism for the heel-supporting plate, so that after the nail has been driven into the heel, and as the nail-driving mechanism begins its upward movement, the pawl G on' the slide H actuates the sprocket-wheel J to feed the heel-supporting plate and heel in `position to receive another nail, so that,

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briefly stated, each nail, previous to its being driven, has actuated certain mechanism, which, after the nail is driven into the heel, causes the operation of the feeding mechanism and heel-supporting plate to expose a new part of the heel for the next nail.

The undriven or feeding nail referred to in this specification as controlling the operation of the feeding mechanism of the heel-supporting plate is to be understood as referring to any location of a nail after it has been separated from the other nails in the nail-raceway and is moved along t-he nail-feedway under the influence of the nail-feeder, or is passing down the driveway to the nail-holdin g device, or is held in the nail-holding device in position to be driven by the nail-driving mechanism into the heel; that is, it refers to any location of a nail after it has been separated from the other nails in 'the nail-raceway up to the time it is driven into the heel.

By means of this invention it is possible for one operator to attend to a number of machines, as he has only to place the heel in position on the heel-plate, start the machine,and leave it. At the proper times, depending upon the passage of the feeding nails, the feeding of the heel will take place, and when the last nail has been driven, the end FVT of the heel-plate` will contact with the knob K and throw the arm K'L away from the clutchoperating mechanism, and the machine will stop, so that the machine is automatic so far as driving the nails and stopping when the work has been done.

The drawings forming a part of this application represent views of a machine in which my invention is embodied, but it will be understood that the same may be varied and my invention carried out in a variety of ways, and I therefore do not limit myself to the arrangement and construction shown, as the same may be varied without departing from the spirit of my invention.

Although I have shown and described my invention as embodied in a heel-machine, yet it will be understood that it is applicable to machines doing other classes of work, into which nails, pegs, or the like are driven.

Having thus ascertained the nature and set forth a construction embodying my invention, what Iclaim a-s new, and desire to secure by Letters Patent of the United States, is-

l. In a heel-loading machine, a heel-supporting plate, feeding mechanism adapted to actuate said heel-plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for moving the nails into position to be driven by said naildriving mechanism, a nail-separator for moving one nail at a time into position to be fed by the nail-feeder, and mechanism operated by the nail-driving mechanism for actuating said nail-feeder and nail-separator.

2. In a heel-loading machine, a heel-supporting plate, feeding mechanism adapted to operate said heel-plate, nail-driving mechanism for driving nails into the said heel, anailfeeder for moving the nails into position to be driven by said nail-drivin g mechanism, a nail-separator for moving one nail at a time into the path of the nail-feeder and connected to said nail-feeder, and mechanism operated by the nail-driving mechanism for actuating said nail-feeder and nail-separator in opposite directions.

3. In a heel-loading machine, a heel-supporting plate, feeding mechanism adapted to actuate said heel-plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for moving the nails into position to be driven by said naildriving mechanism, a nail-separator for moving one nail at a time into position to be fed by saidlnail-feeder, means for imparting the movement of said nail-feeder to said nailseparator after the said nail-feeder hasmoved a predetermined distance, and mechanism operated by the nail-driving mechanism for actuating said nail-feeder.

4. In a heel-loading machine, a heel-supporting plate, feeding mechanism adapted to actuate said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said plate, means for feeding the nails into position to be driven by the said driving mechanism, a nail-holding device for holding the nails in position to be driven by said nail-drivingmechanism and consisting of two jaws normally held together and provided with matching recesses in which the nail is supported, a j aw-separator operated by the naildriving mechanism for separating said jaws to release the nail driven into the heel, and means for imparting to the said jaw-separator the movement of said nail-driving mechanism after said driving mechanism has moved a predetermined distance.

5. In a heel-loading machine, a heel-supporting plate, feeding mechanism adapted to actuate said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for moving the nails into position to be driven by the said nail-driving mechanism, a nail-separator for moving one nail at a time into position to be fed bysaid nail-feeder and connected to said nail-feeder, mechanism operated by said nail-driving mechanism for actuating said nail-feeder and nail-separator, in combination with a nail-holding device adapted to receive the nails fed by said nail-feeder and hold the same in position to be driven by said nail-driving mechanism and consisting of two jaws normally held together and provided with matching recesses in which the nail is supported, and a jaw-separator operated by said nail-driving mechanism for separating said jaws to release the nail driven into the heel.

G. Ina heel-loading machine, a heel-supporting plate, feeding mechanism adapted to actuate said heel-supporting plate, nail-driving mechanism for driving nails into the heel lOO IIO

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carried by said heel-plate, a nail-feeder for moving the nails into position to be driven by said nail-driving mechanism, a nail-separator for moving one nail at a time into position to be fed by said nail-feeder, means for imparting the movement of said nail-feeder to the said nail-separator after the said nail-feeder has moved a predetermined distance, mechanism operated by the said nail-driving mechanism for actuating the said nail-feeder, in combination with a nail-holding device adapted to receive the nails fed by said nail-feeder and hold the same in position to be driven by said nail-driving mechanism and consisting of two jaws normally held together and provided with matching recesses in which the nail is supported, a j aw-separator operated by the nail-driving mechanism for separating said jaws to release the nail driven into the heel, and means for imparting to the said jawseparator the movement of said nail-driving mechanism after said driving mechanism has moved a predetermined distance.

7. In a heel-loading machine, a heel-supporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for moving the nails into position to be driven by said nail-drivin g mechanism, a nail-separator connected to the said nail-feeder for moving one nail at a time into position to be fed by the said nai l-feeder,mechanism for actuating said nail-feeder, and means for imparting the movement of said nail-feeder to the said nailseparator.

8. In a heel-loading machine, a heel-supporting plate,having a series of feeding-points located thereon representing the number of nails to be driven, feeding mechanism adapted to engage with said feeding-points for operating said heel-plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for moving the nails into position to be driven by the said naildriving mechanism, a nail-holding device adapted to receive the nails fed by said nailfeeder and hold the same in position to be driven by said nail-driving mechanism, and means operated by the said nail-driving mechanism for actuating said nail-holding device to release thenails driven into the heel.

9. In a heel-loading machine, a heel-supporting plate having a series of feeding-points located thereon representing the number of nails to be driven,feeding mechanism adapted to engage with said feeding-points for operating said heel-plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for moving the nails into position to be driven by the said naildriving mechanism, a nail-holding device adapted to receive the nails fed by the said nail-feeder and hold the same in position to be driven by said nail-driving mechanism and provided with a retaining device for holding the nails in position to be driven by said nail-driving mechanism, and means operated by said nail-driving mechanism for actuating said nail-holding device to release the nails driven into the heel.

10. In a heel-loading machine, a heel-supporting plate havinga series'of feeding-points located thereon representing the number of nails to be driven,feeding mechanism adapted to engage with said feeding-points for operating said heel-plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for moving the nails into position to be driven by the said naildriving mechanism, a nail-holding device adapted to receive the nails fed by said nailfeeder and hold the same in position to be driven by said nail-driving mechanism and consisting of two jaws normally held together and provided with matching recesses in which the nail fed forward by the nail-feeder is supported, and means operated by the said naildriving mechanism for separating said jaws to release the nail driven into the heel.

ll. In a heel-loading machine, a heel-supporting plate, having a series of feedingpoints located thereon representing the number of nails to be driven, feeding mechanism adapted to engage with said feeding-points for operating said heel-plate, nail-driving mechanism for driving nails into the heel carried by the said heel-plate, a nail-feeder for moving the nails into position to be driven by the said nail-driving mechanism, a nail-holding device adapted to receive the nails fed by the said nail-feeder and to hold the same in' position to be driven by the said nail-driving mechanism and consisting of two jaws normally held together and provided with matching recesses in which the nail fed forward by the nail-feeder is supported, and a jaw-separator operated by the nail-drivin g mechanism for separating said jaws to release the nail driven into the heel.

12. In a heel-loading machine, a heel-supporting plate, fee-ding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said plate, means for feeding the nails into position to be driven by the said driving mechanism, a nail-holding device for holding the nails in position to be driven by the said nail-driving mechanism and consisting of tWo jaws normally held together and provided with matching recesses in which the nail is supported, and a spring-controlled retaining device in one of said jaws adapted to contact with a nail and hold the saine in the said matching recesses, and ajaw-separator operated by the nail-driving mechanism for sep- IOO arating said jaws to release the nail driven j into the heel.

13. In anail-driving machine, anail-driver, a nail-feeder for moving the nails into position to be driven by said nail-driver, a nailseparator connected to said nail-feeder for moving one nail at a time into position to be fed by said nail-feeder, mechanism for feeding the work, mechanism in the path of the feeding nails for controlling the operation of said Work-feeding mechanism and adapted when actuated by a feeding nail to cause the operation of said work-feeding mechanism, a nail-holding device adapted to receive the nails fed by said nail-feeder and to hold the same in position to be driven by said naildriving mechanism, and mechanism for releasing the nails from the said nail-holding device.

14. In a heel-loading machine, a heel-supporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for feeding the nails into position to be driven by said nail-driving mechanism, a nail-feeler in the path of the feeding nails, and mechanism between said nail-feeler and said feeding mechanism for controlling the operation of said feeding mechanism and adapted when actuated by the movement of said nail-feeler by contact with a feeding nail to canse the operation of said feeding mechanism and heel-supporting plate.

' 15. In a heel-loading machine, a heefsupporting plate having a series of feeding-points located thereon, feeding mechanism adapted to engage with said feeding-points for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said plate, a nail-feeder for feeding the nails into position to be driven by said nail-driving mechanism, a nail-feeler in the path of the feeding nails, and mechanism between said nail-feeler and said feeding mechanism for controlling the operation of said feeding mechanism and adapted upon the movement of said nail-feeler by contact with a feeding nail to cause the operation of said feeding mechanism and heel-supporting plate.

16. In a heel-loading machine, a heel-supporting plate having a series of feeding-points located thereon representing the number of nails to be driven, feeding mechanism adapted to engage with said feeding-points for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for feedin g the nails into position to be driven by said nail-driving mechanism, a nail-feeler in the path of the feeding nails, and mechanism between said nail-feeler and said feeding mechanism for controlling the operation of said feeding mechanism and adapted upon the movement of said nail-feeler by contact with a feeding nail to cause the operation of said feeding mechanism and heel-supporting plate.

17. In a heel-loading machine, a heel-supporting plate having a series of feeding-points located thereon, mechanism for driving nails into the heel carried by said heel-plate, a nailfeeder for feeding the nails into position to be driven by said nail-driving mechanism, a

feed-wheel adapted to engage with each feeding-point 1n turn, a pawl for operating said feed-wheel, a nail-feeler located in the path of the nails fed by said nail-feeder, and mechanism between said nail-feeler and said pawl for controlling the movement of said pawl and feed-Wheel and adapted upon the movement of said nail-feeler by contact with a feeding nail to cause the engagement of said pawl and feed-Wheel and the operation of said heel-supportin g plate.

18. In a heel-loading machine, a heel-supporting plate having a series of feeding-points located thereon, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for feeding the nails into position to be driven by said nail-driving mechanism, feeding mechanism adapted to engage with each feeding-pointin turn and consisting of members capable of engagement and disengagement, a nail-feeler in the path of the feeding nails, and mechanism between said nail-feeler and said feeding mechanism for controlling the operation of said feeding mechanism and adapted upon the movement of said nail-feeler by contact with a feeding nail to cause the engagement of the members of said feeding mechanism andthe operation of said feeding mechanism and heel-supporting plate.

19. In a heel-loading machine, a heel-supporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said plate, a nail-feeder for feeding the nails into position to be driven by said nail-driving mechanism, a nail-separator for moving one nail at a time into position to be fed by said nail-feeder, connecting mechanism between said nail-feeder and said nail-separator whereby the movement of one is communicated to the other, and mechanism for actuating said nail-feeder and said nail-separator.

20. In a heel-loading machine, a heel-snpporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said plate, means for feeding nails into position to be driven by said nail-driving mechanism, a nail-holding device consisting of two jaws normally held together and adapt-ed to receive the nails between the said jaws and hold the same in position to be driven by said nail-driving mechanism, and mechanism operated by said naildriving mechanism engaging with said jaws for releasing the nails driven into the heel from said nail-holding device.

21. In a heel-loading machine, a heel-supporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by the said heel-plate, means for feeding the nails into position to be driven by said nail-driving mechanism, a nail-holding device adapted to receive the nails and hold the same in position to be driven by said naildrivin g mechanism, and mechanism operated IOO IIO

i man by said nail-driving mechanism for releasing the nail driven into the heel from said nailholding device.

22. In a heel-loading machine, a heel-supporting plate, feeding mechanism adapted to operate said heel-supporting plate, a naildriving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for feeding the nails into position to be driven by the said nail-driving mechanism, and a nail-holding device adapted to receive the nails fed by said nail-feeder and hold the same in position to be driven by said naildriving mechanism and consisting of two jaws normally held together and provided with matching recesses in which the nails fed forward by said nail-feeder are supported, and mechanism for separating said jaws to release the nail driven into the heel in the operation of the driving mechanism.

23. In anail-driving machine, anail-driver, a nail-feeder for feeding the nails into position to be driven by said nail-driver, mechanism for feeding the work, a nail-feeler in the path of the nails fed by said nail-feeder, mechanism between said nail-feeler and said work-feeding mechanism for controlling the operation of said work-feeding mechanism and adapted upon the movement of said nailfeeler by contact with a feeding nail to cause the operation of said work-feeding mechanism, and a nail-holding device adapted to receive the nails fed by said nail-feeder and to hold the same in position to be driven by saidy nail-driver.

24:. In anail-driving machine, anail-driver, a nail-feeder for feeding the nails into position to be driven by said nail-driving mechanism, mechanism for feeding the work, a nail-feeler in the path of the feeding nails, mechanism between the said nail-feeler and the said work-feeding mechanism for controlling the operation of said work-feeding mechanism and adapt ed upon the movement of said nail-feeler by contact with a feeding nail to cause the operation of said work-feeding mechanism7 a nail-holding device for receiving the nails fed by the said nail-feeder and hold the same in position to be driven by said nail-driver, and mechanism for releasing the nails from the said nail-holding device upon the operation of said nail-driver.

25. In a nail-drivin g machine, a nail-driver, a nail-feeder for feeding the nails into position to be driven by said nail-driver, a nailseparator for moving one nail at a time into position to be fed by said nail-feeder, mechanism for feeding the work, a nail-feeler in the path of the feeding nails, and mechanism between the said nail-feeler and said workfeeding mechanism for controlling the operation of said work-feeding mechanism and adapted upon the movement of said nail-feeler by contact with a feeding nail to cause the operation of said work-feeding mechanism.

26. In anail-drivin g machine, anail-driver,

a nail-feeder for feeding the nails into position to be driven by said nail-driver, a nailseparator connected to said nail-feeder for moving one nail at a time into position to be fed by said nail-feeder, mechanism for feeding the work, a nail-feeler in the path of the feeding nails, and mechanism between said nail-feeler and said work-feeding mechanism for controlling the operation of said workfeeding mechanism and adapted upon the movement of said nail-feeler by contact with a feeding nail to cause the operation of said work-feeding mechanism.

27. In a nail-drivin g machine, a nail-driver, means for feeding the nails into position to be driven by the said nail-driver, mechanism for feeding the work, a nail-feeler in the path of the feeding nails, and mechanism between the nail-feeler and said work-feeding mech-A anism for controlling the operation of said work-feeding mechanism and adapted upon the engagement of a feeding nail with said nail-feeler to cause the operation of said workfeeding mechanism.

28. In a heel-loading machine, a heel-snpporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said plate, means for feeding the nails into position to be driven by said nail-drivin g mechanism, a nail-feeler in the path of the feeding nails, mechanism between the said nail-feeler and said feeding mechanism for controlling the operation of said feeding mechanism and adapted upon the engagement of a feeding nail with said nail-feeler to cause the operation of said feeding mechanism and heel-supportin g plate, and means for normally holding said feeler in the path of the feeding nails.

29. In a heel-loading machine, a heel-supporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said plate, means for feeding the nails into position to be driven by said nail-driving mechanism, a nail-feeler in the path of the feeding nails, and mechanism between said nail-feeler and said feeding mechanism for controllingthe operation of said feeding mechanism and adapted upon the engagement of a feeding nail with said nail-feeler to cause the operation of said feeding mechanism and heelsupporting plate.

30. In a heel-loading machine, a heel-snpporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, means for feeding the nails into position to be driven by said naildrivin g mechanism, a nail-feeler in the path of the feeding nails, mechanism between said nail-feeler and said feeding mechanism adapt-- ed when actuated by the movement of said nail-feeler to cause the operation of said feeding mechanism and heel-supporting plate, and

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means adapted to engage with and actuate said nail-feeler upon the engagement of said nail-feeler with a feeding nail.

31. In a heel-loading machine, a heel-supporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for feeding the nails into position to be driven by said nail-driving mechanism, a nail-feeler in the path of the feeding nails, mechanism between said nail-feeler and said feeding mechanism adapted when actuated by the movement of said nail-feeler to cause the operation of said feeding mechanism and heel-supporting plate, and means on said nail-feeder adapted to actuate said nail-feeler upon the engagement of said nail-feeler with a feeding nail.

32. In a heel-loading machine, a heel-supporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for feeding the nails into position to be driven by said nail-driving mechanism, a nail-feeler in the path of the feeding nails, mechanism between said nail-feeler and said feeding mechanism adapted when actuated by the movement of said nail-feeler to cause the operation of said feeding mechanism and heel-supportingplate, means on said nail-feeder adapted to actuate said nail-feeler upon the engagement of said nail-feeler with a feeding nail, and means for normally holding said nail-feeler in the path of the feeding nails.

33. In a heel-loading machine, a heel-supporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for feeding the nails into position to be driven by said nail-driving mechanism, a nail-separator for moving one nail at a time into position to be fed by said nail-feeder, a nail-feeler in the path of the feeding nails, mechanism between the said nail-feeler and said feeding mechanism adapted when actuated by the movement of said nail-feeler to cause the operation of said feeding mechanism and heel-supporting plate, means on said nail-feeder adapted to en gage with and actuate said nail-feeier upon the engagement of said nail-feeler with a feeding nail, and means for normally holding said nail-feeler in the path of the feeding nails.

Si. In a heel-loading machine, a heel-supporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for feeding the nails into position to be driven by said nail-driving mechanism, a nail-separator connected to the said nail-feeder for moving one nail at a time into position to be fed by said nail-feeder, a nail-feeler in the path of the feeding nails, mechanism between the Said nail-feeler and said feeding mechanism ladapted when actuated by the movement of said nail-feeler to cause the operation of said feeding mechanism and heel supporting plate, means on said nail-feeder adapted to engage with and actuate said nail-feeler upon the engagement of said nail-feeler with a feeding nail, and means for normally holding said nail-feeler in the path of the feeding nails.

35. In a heel-loading machine, a heel-supporting plate, feeding mechanism for operating sai'd heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said heel-plate, a nail-feeder for feeding the nails into position to be driven bysaid nail-driving mechanism, a nail-separator connected to the said nail-feeder for moving one nail at a time into position to be fed by said nail-feeder, mechanism operated by said naildriving mechanism for actuating said nailfeeder and said nail-separator, a nail-feeler in the path of the feeding nails, mechanism between said nail-feeler and said feeding mechanism adapted when actuated by the movement of said nail-feeler to cause the operation of said feeding mechanism and heelsupporting plate, means on said nail-feeder adapted to engage with and actuate said nailfeeler upon the engagement of said nail-feeler with a feeding nail, means for normally holding said nail-feeler in the path of the feeding nails, a nail-holding device adapted to receive the nails fed by the said nail-feeder and hold the same in position to be driven by said nail-driving mechanism and consisting of two jaws normally held together and provided with matching recesses in which the nail fed forward is supported, and a jaw-separator operated by the said nail-driving mechanism for separating said jaws to release the nail driven into the heel from saidlnail-holding device.

36. In a nail-driving machine, a nail-driver, means for feeding the nails into position to be driven by said nail-driver, mechanism for feeding the work, a nail-feeler in the path of the feeding nails, mechanism between said nail-feeler and said work-feeding mechanism adapted when actuated by the movement of said nail-feeler to cause the operation of said work-feeding mechanism, and means adapted to engage with and actuate said nail-feeler upon the engagement of said nail-feeler with a feeding nail.

37. In a nail-driving machine, a nail-driver, a nail-feeder for feeding the nails into position to be driven by said nail-driver, mech anism for feeding the work, a nail-feeler in the path of the feeding nails, mechanism between the said nail-feeler and the said work-feedin g mechanism adapted when actuated by the movement of saidl nail-feeler to cause the operation of said work-feeding mechanism, and means on said nail-feeder adapted to engage with and actuate said nail-feeler upon the engagement of said nail-feeler with a feeding nail. l

38. In a nail-driving machine, anail-driver,

IIO

a nail-feeder for feeding the nails into position to be driven by said nail-driver, mechanism for feeding the work, a nail-feeler in the path of the feeding nails, mechanism between the said nail-feeler and the said work-feeding mechanism adapted when actuated by the movement of said nail-feeler to cause the operation of said work feeding mechanism, means on said nail-feeder adapted to engage with and actuate said nail-feeler upon the engagement of said nail-feeler with a feeding nail, and means for normally holding said nail-feeler in the path of the feeding nails.

35). In a heel-loading machine, a heel-supporting plate, feeding mechanism for operating said heel-supporting plate, nail-driving mechanism for driving nails into the heel carried by said plate, means for feeding the nails A into position to be driven by said nail-driving mechanism, and mechanism cooperating with said feeding mechanism to control the operation thereof and having a part extending into the path of the feeding nails and adapted when actuated by engagement with a feeding nail to cause the operation of said feeding mechanism and heel supporting plate.

l0. ln anail-drivingmachine, :inail-driver,

means for feeding the nails into position to be driven by said nail-driver, mechanism for feeding the work, and mechanism coperating with said work-feeding mechanism to control the operation thereof and having a part extending into the path of the feeding nails and adapted when actuated by engagement with a feeding nail to cause the operation of said work-feeding mechanism.

4l. In a nail-driving machine, a nail-driver, means for feeding the nails into position to be driven by said nail-driver, mechanism for feeding the work, and mechanism coperating with said work-feeding mechanism to control the operation thereof and having a part extending into the path of the feeding nails and adapted when in engagement with a feeding nail to cause the operation of said workfeeding mechanism.

In testimony whereof l have signed my name to this specification, in the presence of two subscribing witnesses, on this 12th day of January, 1895.

ERASTUS VOODVARD.

llitnesses:

L. H. TRow, EL. HARLow.

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