US739976A - Nail-making machine. - Google Patents

Description

7 PATENTBD EPT. 29, 1903. -s. BEAUREGARD. NAIL MAKING MACHINE. APPLICATION FILED AUG. 12, 190 1. RENEW'ED FEB. 21, 1903- 4 SHEETS-SHEET 1 N0 MODEL.

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No. 739,976. 'PATENTED SEPT. 29, 1903.

s. BEAUREGARD.

NAIL MAKING MACHINE.

APPLICATION FILED AUG. 12, 1901. RENEWED FEB. 21, 1903.

IIIIIW s/ Witnesses: v l-- lnvent f 55 N4 I e i Attorneys N o .]39,976. PATENTED SEPT. 29,1903.

s. BEAURBGARD. NAIL MAKING MAUHINE.

APPLICATION FILED AUG. 12, 1901. RENEWED FEB. 21, 1903.

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No. 739,976. PATENTED 'SEPT. 29, 1903.- s. BEAUREGARDJ- I NAIL MAKING MACHINE. APPLICATION FILED AUG. 12, 1901. RENEWED FEB. 21,-1903.

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UNITED STATES Patented September 29, 1908.

PATENT OFFICE.

STANIS LAS BEAUREGARD, OF ST. HENRI, CANADA, ASSIGNOR TO JOSEPH ADAM, OF-MONTREAL,'CANADA.

NAIL-MAKING MACHINE.

:BECIFIOATION forming part of Letters Patent No. 739,976, dated September 29, 1903. Application filed Angnst 12, 1901. Renewed February 21, 1903. Serial No. 144,526. (No model.)

To all whom, it may concern.-

GARD, a subject of His Majesty the Kingof Great Britain, residing at St. Henri, county'of Hochelaga, Province of Quebec, Canada, have invented certain new and useful Improvements in Nail-Making Machines; and I do hereby declare thatthe'following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. My invention relates to improvements in nail-making machines, the same being more particularly directed to that class of machines which produce from a continuous length of wire a string or a connected strip of nails or tacks which are intended for, use in hand lasting-tools by persons engaged in shoe manufacture, although the product of the machine may be used for other purposes.

The primary object of this invention is to simplify the constructionof machines of this class and to increase the speed of the working parts, thereby increasing the productive capacity of the machine. 7

Further objects and advantages of the invention will appear in the course of the sub-- joined description, and the novelty in the combination and construction of parts will be defined by the claims.

In the accompanying drawings, forming a part of this specification, Figure l is a plan view of a nail-making machine embodying my invention. nal section thereof in the plane of the dotted line 22 on Fig. 1 looking in the direction of the arrow. Fig. 3 is avertical transverse section in the plane of the dotted line 3 3 on Fig. 1, also looking in the direction of the arrow. Fig. 4 is another vertical transverse section taken in the irregular plane indicated by the 5 9, and 10 are sectional plan views through Fig. 2 is avertical longitudi-' the two setsof dies, illustrating the diiferent positions of the dies in the process of pointing and heading the nails in a continuous strip or string. Fig. 11 is a detail perspective view of the lever which moves one of the set of gripper-dies.

e The same numerals of reference denote like parts in each of the several figures of the drawings. j

5 designates the supporting-stand, which is furnished with the yoke 6, the latter being equipped withthe shaft-bea'in gs 7,upon which The shaft-bear- -ings are arranged in alinement to accommois secured the bed-plate 8.

date the single main shaft 9, thelatter being provided with the fast and .loose pulleys 1O 11 and with the balance-wheel 12. From one corner of the bed 8 extends the arm 13, on which is revolubly mounted the wire-reel 14. (See Fig. 1.) To the other end of the bedplate is secured the outwardly-extending bracket 15, which supports the shaft or arbor 16 of the take-up reel 17, the latter being provided with a belt-pulley 18, around which passes the crossed belt 19, that is driven from the pulley 20. Said pulley is made fast with the counter-shaft 21, which is provided with a worm-wheel 22, that has intermeshing engagement with a worm 23 on one end of the main shaft 9, whereby thetake-up reel is driven at slow speed through the intermediate gearing connecting the samewith the main shaft.

' 24 designates a plate which is attached to a short vertical post 25, that is secured upon the bed 8, near one end of the latter, and this plate24 supports the wire-guide 26 and the series of straightener-rolls 27. The wire from the reel 14 passes through the guide 26 and o IOO is secured in the die-supporting block 30, and the lower end of said lever is provided with a trundle-roller 35, the same being revoluble in a horizontal plane and on the vertical axis afforded by said lever. The trundle-roller rides against the lateral active face of the feeder-cam 34, which is secured to the shaft 9 at a point directly below the slot 29 in the bed, and this cam is effective to impart the vibratory motion to the feeder-lever 28 in order to advance the wire through the dies at the proper intervals. The feeder-lever is provided at a point above the die-block 30 with a plate or arm 35, upon which the wire is adapted to rest after it passes between the straightener-rolls. A feed-finger 30 is mounted by a rocking arbor 37 on the feeder-lever in a position for the pointed end of said feedfinger to lie in cooperative relation to the feed plate or arm 15. The rocking arbor 37 passes through the feeder-lever 28, as shown by Fig. 7, and it is provided with a pin 38, to which is attached one end of a coiled spring 39, the latter being fastened to the lever, also as shown by Fig. 7, said spring servingto 11ermally hold the feed-linger 36 in a position to grip the wire between its pointed end and the feed-plate My machine is equipped with two sets of dies, one of which sets of dies consists of the pair or members 40 11, while the other set of dies is comprised in the members 42 4.3. (See Figs. 3, l, S, 9, and 10.)

The dies &0 i1 constitute the pair of gripping-dies, and they are mounted in the upstanding member 30 of the die-block 30. This member of the die-block is provided with a horizontal slot, which opens through one edge of said member and which is formed with a guideway 44:. The gripper-die i0 is fitted in the guideway, so as to be held adjustably therein by the screws 15 it, thus making the die 10 normally occupy a stationary relation to the companion gripper-die 41, the latter being slidably confined in the die-block member 30. This movable gripper-die +11 extends beyond the edge of the die-block 30, so that it may be formed with a notch that terminates in a shoulder 17, and with this shoulder engages the hooked end of a retractorplate 18. (See Figs. 3 and 11.) The retractorplate is slotted, as at 19, and is fitted upon the headed upper end of an actuating-lever 51, said retractor-plate being adj ustably secured to the lever by means of a screw 52 or its equivalent. The lever is furthermore provided with an adjusting-screw 5 which is arranged to impinge the end of the movable gripper-die 41, as shown by Fig. I), and the retractor-plate and the screw serve to connect the die ll opera-tively with the lever 51, whereby said gripper-die is positively moved with relation to the stationary companion gripper-die l0. The lever 51 is fulcrumed at apointintermediate of its length, as at 51, on a suitable part of the bed 8 or the die-block 30, and the lower end of this lever 51 is furnished with atrundie-roller 55, said lever 51 being bent at a point intermediate of its length, as shown more clearly by Figs. 2 and 11. The trundleroller 55 is thus brought into operative relation to the periphery of the gripper-actuatin g cam 56, the latter being secured to the main shaft 9 at a point adjacent to the feeder-actuating cam 34:, (see Fig. 2,) thus making provision for positively actuating the lever 51 in order to open and close the gripper-dies 4O 41. at the proper interval.

The vertical member 30 of the die-block is provided with a passage 57 and with a guide 58, asshown by Fig. 2, thus making provision for the passage of the wire from the feeder through the passage and the guide to the cooperating faces of the set of gripper-dies 40 4.1.

The peculiarity of my in vention resides in the set of pointing-dies 42 43 and the means for actuating the same. These dies 4-2 43 have the opposing faces thereof beveled or inclined reversely to each other, as indicated at 59 in Figs. 8 to 10, inclusive, and said faces are furthermore provided with the recesses 60. These dies are opened and closed by a lateral horizontal movement which is given to the pair of levers 61 (32 in which the dies are mounted, and these levers are actuated by an intermediate cam (33. The levers are peculiarly supported, so as to be capable of a lateral motion with respect to each in order to open and close the dies 42 43 and also of a movement in a path at right angles to such lateral movement, such last-mentioned movement of the die-carrying levers serving to advance and retract the dies 42 43 toward and from the set of gripper-dies 40 41, as graphically indicated by Figs. 8 to 10, inclusive.

The dies 42 T3 are fitted in seats (A, which are provided at the upper ends of the levers, and said dies are clamped in place adj ustably by the plates 65, which are secured to the levers by the bolts 66. The levers are provided below the dies with the openings 67, the same being contracted at the middle portion and curved, as more clearly represented by Fig. 6, and through these openings of the die-carrying levers pass the stationary arbors 67, the latter having the threaded ends 68, which are screwed into the die-block 30. The levers are held from displacement by the nuts (3.), which are screwed on the outer ends of the arbors and are arranged to bear against the lateral faces of the levers. be understood that the levers are looselymounted on'the arbors, so as to partake of the lateral motion and of a rocking motion, and this lateral motion is imparted to the levers by the cam (33, the latter being secured to the main shaft 3 at a point adjacent to the gripper-actuating cam 56. (See Fig. 2.) The cam 63 acts against the trundle-rollers 70, which are-loosely mounted on the lower ends of said levers, and these rollers are held normally in engagement with the cam by a coiled spring 71, which is attached to the lower por- It will thus tions of the levers above the main shaft. ing the wire from the reel 14 and pushing it (See Fig. 4.) The opening and closing movement of the dies under the action of the cam 63 causes the beveled faces 59 of said dies to compress the wire and to form the points of the nails or tacks, and I will therefore designate the cam 63 as the pointing-cam in order to more readily distinguish it from the other cams which are carried by the main shaft. Thedies 42 43, are not curved or cut away at their opposing active faces, because they are merely beveled, and the curved recesses 60 in the rear side of the dies allow ample clearance therein for the heads of the nails. The rocking or vibrating motion which the levers 61 62 are capable of upon the arbors 67 moves the set of dies 42 43 in a contrary or reverse direction to the line of feed of the wire through the machine, and this rocking motion of the levers and the dies takes place when the set of dies 42 43 and the set of dies 40 41 are gripped firmly upon the wire, whereby the wire is held securely between the dies 40 41 and the wire is upset between the two sets of dies in order to form the heads on the nails or tacks of the string or strip.

Positive means are provided in the machine for imparting the toand-fro or rocking motion to the set of pointing and heading dies 42 43, and in one embodiment of this means I employthe heading-lever 71, which is acted upon by the heading-cam 72 and has operative connection with the die-carrying levers 61 62. The operative connection between these parts is obtained by means of'the arms 73, which are secured firmlyby the screws 74 to the die-carrying levers 61. 62, and these arms are fastened to the header-lever 71 by a transverse bolt 75. The lever 71 is fulcrumed at a point intermediate of its length by means of the bolts 76, which are supported in an adjustable block 77, that' is secured on the bed by a bolt 78, and to the lower end of thislever 71 is loosely fitted a trundle-roller 7 9, which is adapted to ride against the active face of the header-cam 72.

A hook-bolt is secured to the lower end of the header-lever, and it engages with a coiled spring 81, which is fastened to the lower portion of the feeder-lever 28, as shown by Fig. 2. This spring serves to draw the headerlever and the feeder-lever toward each other and to keep the trundle-rollers 79 on said levers in engagement with the active faces on the feeder-cam 34 and the header-cam 72. The pointing and heading dies 42 43 may be adjusted in their seats of the header-levers by the set-screws 83. (See Fig. 4.)

The operation may be described as follows: The action. of the feeder-cam 34 on the feederlever moves the uppersend of the latter toward the set of gripping dies, and on this movement of said lever the plate 35 and the finger 36 cooperate to firmly grip the wire and to advance the latter a distance exceedin g the length of the nail or tack which is about to be formed, said movement of the lever drawthe gripper-dies is limited by the collars 85,

through the sets of dies and the opening or passage 84in the upper end of the header.- lever 71. During the feed of the. wire the earns 56 63 maintain the two sets of dies in the open position shown by Fig. 8 and the header-cam 72 acts on the header-lever to retract the upper end thereof, and to thereby rock the die-carrying-levers 61 62 on their arbors 67, so as to maintain the set of dies 42 43 in retracted relation to the set of gripper-dies 40 41. Immediately following the advancement of the wire, as described, the cam 56 closes the set of gripper-dies 42 43, as graphically indicated by Fig. 9. The wire being firmly held in place between the two dies 40 41 and being firmly gripped by the other set of dies, 42 43, the cam 72 becomes active to throw the header-lever 71 and the die-carrying levers 61 62 toward the die-block 30, and thus the set of dies 42 43 are moved positively toward the companion set of dies 40 41, so that the parts assume the position shown by Fig. 10. The closing of the dies 42 43 upon the wire by the action of the cam 63 makes the beveled faces 59 of said dies compress the wire, and thereby form the point on the nail or tack. The rocking motion imparted to the die carrying levers by the header-lever takes place at the time when the wire is firmly gripped by the dies 40 41 and while the dies 42 43 are gripped on thewire,and this movement of said dies 42 43 carries the wire toward the dies 40 41, and thereby forms the head on the nail or tack, as shown by Fig. The movement of the dies 42 43 toward which are fitted on the arbors 67, said collars being removable and interchangeable with collars of different thicknesses, so as to determine the size of the nail-heads. Immediately following the pointing and heading of the nail the two sets of dies are opened simultaneously, the dies 42 43 are retracted by the pull of the spring 81 on the header-lever, and the feeder-lever-2S is operated on by the cam 34, so as to again advance or feed a proper length of the wire. These operations are continued indefinitely and automatically for the rapid and economical manufacture of a string or strip of nails.

Changes within the scope of the appended claims may be made in the form and proportion ofsome of the parts, while their essential features are retained and the spirit of the invention is embodied. Hence I- do not desire to be limited to the precise form of all the parts as shown, reserving the right to vary therefrom.

Having thus described my invention, what I claim as new is 1. In a nail-making machine, apair of gripper-dies adapted to open and close upon the wire, cam-operated levers mounted to move transversely of the path of the wire, a pair of combined pointing and heading dies having reversely-beveled faces mounted on said IOC levers adjacent to the gripper-dies, said levers being mounted to have a transverse motion and also a longitudinal motion toward and from the gripper-dies, means for causing said heading and pointing dies to close upon said wire and compress the same to form a point, and means for thereafter rocking the levers carrying said dies toward the clamping-dies, whereby to form a head on the next nail, substantially as described.

2. In a nail-makin g machine, a pair of gripper-dies adapted to open and close upon the wire, cam-operated levers mounted to move transversely of the path of the wire, a pair of combined pointing and heading dies having reversely-beveled faces mounted on said levers adjacent to the gripperdies, said levers being mounted to have a transverse motion and also a longitudinal motion toward and from the gripper-dies, means for causing said heading and pointing dies to close upon said wire and compress the same to form a point, means for thereafter rocking the levers carrying said dies toward the clamping dies, whereby to form a head on the next nail, and a stop carried between the two pairs of levers, whereby to limit the motion of one pair toward the other to regulate the thickness of the head.

3. In a nail-making machine of the class described, the combination with a set of gripperdies, means for opening and closing the same, and a feed mechanism, of a pair of rocking levers normally held in operative relation to an interposed cam, a set of pointing-dies mounted in said levers and having, the cooperative faces thereof beveled or inclined reversely, a header-leverhavingoperative connection with said die-carrying levers, and a cam for vibrating the header-lever, substantially as and for the purposes set forth.

4:. In a nail-making machine, the combination of a pair of gripper-dies, means for closing them upon the wire from which the nails are made transversely of the latter, a pair of arbors projecting parallel tothe wire from the sides of the block carrying the gripperdies, a pair of levers fulcrumed at an intermediate point thereof on said arbors, the fulcrums of said levers being interiorly convex, whereby to permit the longitudinal rocking movement to said levers toward and from said gripper-dies, a pair of combined heading and pointing dies carried by said last-named levers, means for forcing the lower ends of said levers apart, whereby to cause said heading and pointing dies to grip the wire and compress the same to form a point, and means to rock said levers toward the gripper-dies to form a head on the next adjacent nail.

5. In anail-making machine of the class described, the combination with a set of gripperdies, and means for opening and closing the same, of a feeder-lever actuated by a cam and provided with means for advancing a wire, a pair of die-carrying levers opened and closed by a cam, a set of pointing-dies mounted in said die-carrying levers, a header-lever connected with said die-carrying levers and also actuated by a cam, and a spring connecting the header-lever and the feeder-lever, substantiall y as described.

(3. A nail-making machine for making a string of nails from a single piece of wire comprising a feeding device consisting of a lever having a gripping means thereon and adapted to rock back and forth longitudinally to feed the wire at each forward movement the length of a nail, a guide-block through which the wire passes, a pair of gripper dies, one mounted in a stationary block and the other having a reciprocating movement transversely of the Wire, a lever mounted at an intermediate point thereof and adjustably c011- nected to reciprocate said last-named die, a pair of longitudinal arbors fixed in the dieblock of the gripper-dies and projecting rearwardly thereof, a pair of levers mounted at an intermediate point upon said arbors and having conveXly-rounded bearings, whereby they may receive a longitudinal rocking motion, a pair of combined heading and pointing dies carried by said levers and adapted to grip, compress and upset the wire to form a point and head thereon, a heading-lever mounted on a transverse axis rearwardly of said last-named levers and connected therewith by a link, means for adjusting the forward throw of said heading-lever and dies to regulate the thickness of the head, an operating-shaft longitudinal of the machine, and cams mounted on said shaft, whereby to reciprocate said feeder-lever, oscillate said gripper-lever, force apart the lower ends of the pair of levers carrying the heading and pointing dies to form a nail-point and move forward the upper end of the heading-lever, whereby-to press the heading-dies toward the gripper-dies and form a head on the next adjacent nail.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

I STANISLAS BEAUREGARD.

lVi tnesses:

JoHN F. DEUFFERWIEL, J.' A. MARION.

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