US380674A - Pegging machine - Google Patents

Description

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PEGGING MACHINE. N0. 380,674. Patented Apr. 10, 1888.

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PEGGING MAGHINE. No. 380,674. Patented Apr.'10, 1888.

MTEEEEKEQL .NVENTEIR. W V ZZfp% UNITED STATES PATENT OFFICE.

EDlVIN E. BEAN, OF BOSTON, MASSAOHUSETTS, ASSIGNOR TO THE STAR METALLIC THREAD COMPANY, OF SAME PLACE.

PEGGlNG-MACHINE.

EPECIPICA'I'ION forming part of Letters Patent No. 380,674, dated April 10 188B.

Application filed May7,1886. Serial N5. 201,428. (No model.)

To all whom it may concern:

Be it known that I, EDWIN E. BEAN, of Boston, in the county of Suffolk and State of Massachusetts, a citizen of the United States, have invented certain new and useful Improvements in Pegging-Machines, of which the following is a specification.

My present invention relates to improvements in pegging machines for boots and shoes, substantially of the character shown in my Letters Patent No. 342,278, of May 18, 1886; and it consists of improvements in machinery of that character, whereby its efliciency and usefulness are increased.

In the accompanying drawings, Figure 1 is a side elevation of the upper part, and Fig. 2 a side elevation of the lower part, of the machine, thetwo figures being intended to match at the broken lines. Figs. 3 and 4 are details of portions of the mechanism for raising and lowering and locking the horn. Fig. 5 is an enlarged view of the head of the machine as shown in Fig. 1. Figs. 6 and 7 are details of the device for locking the horn. Fig. 8 is a front elevation of a portion of the head of the machine, illustrating the operation of the aw], driver, and feed, the sliding plate and feed mechanism being sectioned through. Fig. 9 is an end elevation, and Fig. 10 a plan. of the same portion of the machine. Figs. 11 and 12 are details of portions of the mechanism, as will be hereinafter described. Fig. 13 is a front elevation of the head of the machine and connected parts, intended to illustrate the operation of the wire-feeding devices.

As mypresent machine is in the main substantially the same as that for which I have already applied for patent, I will specify herein only those features wherein my present improvements are believed to consist. These are principally in the wire-feeding devices, the pegging devices, the stock-feeding devices, and in the construction and operation of the horn and header.

The peg-wire is carried upon a rotary drum, A, Figs. 5 and 13, this drum being, for convenience, mounted upon the standard 13, extending above thehead of the machine. This standard also carries the rock-shaft 0, Fig. 13, with its rocker-arms O C, and the eccentric O transmits motion from the main shaft to the devices for feeding the peg-wire and cutting 0E the peg.

To overcome the inertia of the wire-drum A, which when full of wire is considerable, and to make it rotate and so feed off the pegwire, I provide a semicircular guide, D, grooved on the curved face, over which the peg-wire passes. This guide is pivoted, as shown, upon an extension of the standard B and rests upon the rocker-arm G so that it has a rising-and-falling motion around its pivot as the rocker-arm rises and falls. The rising motion of this pivoted guide unreels a sufficient quantity of wire from the drum A to allow the peg-wire to be slack when fed,which is an advantage. This rocker-arm C also carries at its end a connecting-rod, E, by which the necessary motions are given to the wire feeding and cutting devices, and also to the devices by which the wire is clamped to feed it downward.

The clamping device consists of a rod, E, pivotally connected to and carried by the connecting-rod E, Figs. 8 and 13. The'lower end of this rod E is pivotally connected to a pivoted locking-piece, E which, when the rod E is carried downward, bears the pivoted shoe E against the wire, thus firmly clamping it, carrying it down, and holding it until the pressure is released by the upward motion of the connecting rod E and rod E. The piw oted shoe is mounted in a sliding block, E", which is secured by a frictionclamp, E", to the sliding plate E hereinafter described.

The devices whereby the wire is fed and out off are different in other respects from those shown in my former patent, as will now be pointed out. In my former patent the wire was-fed down by being caught between a pair of nippers and carried down with them until the desired length of peg had been fed, when the same nippers were brought together to cut off the peg. In the present case Iemploy a pair of stationary nippers, which are always open during the feeding of the wire, but which are brought together when a suitable length of wire has been fed by the operation of a moving wedge traveling with the apparatus which feeds the wire, and entering the nippers to force them against the wire to cut it off. The construction of the machine in this respect is shown at Figs. 1, 8, 5, and 13. The connecting-rod E, as has before been explained, during the first part of its downward motion acts simply to clasp the feeding-shoe E against the wire by reason of the slot and pin. (Shown at E, Fig. 8.) The further descent of the connecting-rod E next moves the sliding plate E carrying the wedge E and also the block E above mentioned, the said block being attached to it by a friction clamp, as stated, which allows the block to move when unimpeded, but which permits the plate to move without the block when the block is arrested. This movement causes the wire, which is still held by the dog E to be fed downward until the block E strikes and is arrested by the stop-lever F. Beyond this point the downward motion of the rod E, which also is adapted to slide frictionally for this purpose past the rod E by reason of the sliding connection between them, (shown at E in Fig. 8,) carries down the plate E and sliding wedge E (see Fig. 5) until it enters the spring-jaws E and causes the cutters to come together upon and cut off the now stationary peg-wire to form a peg. The plate E is free to slide past the block E by reason of the connectingbolt E, which extends through a slot in the plate, as shown in Fig. 8, and is held to the plate by friction. Upon the rising of the rod E these operations are reversed, the clamping or looking devices E E being first unlocked. Then the plate E, with its connected parts, moves back until the block F is again arrested by the stop E, attached to the head of the machine. The plate E and rod E, however, continue to be drawn up through the frictional clamping device at E and E to its highest point, which is determined by the throw of the eccentric.

The wire is prevented from traveling backward with the receding block by reason of the constant spring friction at E, located over the stop E.

I have also improved my former machine in respect to the devices by which the length or amount of wire fed is regulated to correspond with the thickness of the stock where the peg is to be driven into it. I now employ for this purpose a lever, F, mounted upon the head of the machine, Figs. 1 and 5, one end of which is connected with and operated by the connecting-rod F, mounted upon the foot-lever F Figs. 2 and 3, which lever also carries the horn F and its attachments. The opposite end of the lever F is arranged to act as a stop or abutment to limit the length of wire fed to form the peg. By this construction the lever F takes the place of the rock-shaft, connecting-rods, and movable guides shown in my former. patent for this purpose. I have also materially improved the devices whereby the lower end of the peg is clinched while being held in position by the driver, which improvements I will now proceed to describe.

In my former machine the only provision for holding the horn up against the work at the time of driving and heading the peg was a rigid locking device that hold the horn in a fixed position when the hammer came in contact with the peg and clinched it. I have since found that it is desirable to construct the horn and the header or clincher which operates within it in such a manner that the end of the horn can be more firmly brought up against the stock at the moment the peg is clinched by the header, thereby more thoroughly compressing the stock.

Instead of the swinging hammer and its operating devices shown in my former application, I now employ a header, F, Figs. 1 to 4, which is substantially a single rigid piece of metal extending from the upper part of the horn down through its support to the lever F, by which this header is operated. This lever F, as shown in plan at Fig. 3, is mounted within the treadle-lever F", previously described. Its other extremity is connected by means of the connecting-rod F with the main shaft of the machine. The horn F is mounted in bearings so that it may be easily moved up and down therein, and engages with and is carried up slightly by the upward motion of the clinching-rod F*, as shown in Fig. 1, an adjustable screw, F being set in the under inside face of the horn,against which the header strikes as it moves up. The screw may be adjusted to regulate the movement of the rod F relatively to the horn F By virtue of this construction at the proper time in the operation of the machine the header F is carried up through the upper perforated face of the horn F, partially clinching the peg, and then the continued upward motion of the header carries with it the horn, so that both the header and the horn are brought firmly and simultaneously against the peg and the surrounding stock. It will be perceived that I have simplified materially the construction of this portion of the machine and also greatly reduced the number of working parts.

I have also dispensed with the wheel-feed shown in my former patent, and have substituted therefor an awl-feed, the construction and operation of which I will now proceed to describe. This improvement is best shown in Figs. 8 to 10 and 13. The awl and driver bars G G are arranged, as before, within a sliding block, which block is operated by means of a cam-connection, J, from the main shaft of the machine. The rocker-arm G which operates the awl and driver bars,is mounted,as before, on a supplemental shaft worked from the main shaft by a cam and crank. Both the awl and driver bars are operated by the rocker-arm G which engages alternately with them by means of a pin and slots, as shown. This rocker-arm carries a pin or stud, 9, (see Fig. 9,) and the awl-bar and driver-bar are each slotted to receive this stud, the slots in the two bars being at the same level when the bars are respectively raised to the highest point of the throw of the arm G. The driver-bar G is also provided with a projecting and offset piece, 9, (see Figs- 8 and 10,) and a pin, 9 projects from the awl- IIO bar G and into the path of the projection y when the latter descends. A portion of the descent of the awl-bar is produced by this pro jection g striking against the pin 9 when the driverbar descends, thus forcing the awlbar down, and a portion of the descent of the awl-bar is produced directly by the action of the rocker-arm G2 when it is descending and its pin is in the slot of the awl-bar. The raising of the awl-bar and the raising and lowering of the driver-bar are performed altogether bythe rocker-arm G2 acting directly upon them through the pinandslot connection above described.

Assuming the machine to be in the position shown at Fig. 8, wherein the rockerarm G is represented as abouthalf th rough its down ward motion, the continued downward motion of the rockerarm G forces the awl entirely through the work to make a hole to receive a peg to be subsequently driven. Next, the upward motion of the arm G carries the awl out of the work and raises the awl-bar to its highest point, the action of the cam J having retracted the spring-stop G (the object of which will afterward be explained,) so that the awlbar has been free to rise. Next, the arm G remaining stationary, the continued action of the cam J moves the sliding block,which carries the awl and driver bars, until the driver bar occupies the position formerly occupied by the awl-barthat is to say, immediately over the hole punched by the awlthe stud upon G having, by reason of this change of position of the awl and driver bars, left the slot in the awl-bar and entered that in the driving-bar. Next, the arm G again descends, this time carrying down the driver-bar to drive and head the peg, and toward the latter part of its descent the projection upon the driver-bar G meets the pin 9 on the awl-bar and carries it down part way into the work. The arm G then moves up, carrying with it the driver'bar to its highest point. The awl having been left, as explained, partly driven into the work, the cam J again comes into operation to move the block and the awl and driver bars back, and thus the work is carried or fed by means of the awl,which remains part way in it.

The moving of the awl and the driver bar by the cam,as last descrlbed,obviousl y requires that the stud should pass out of the slot in the driver-bar. If the awl and driver bar were at the same height and their slots were opposite, the stud g would pass from one to the other, as before; but it will be observed that, the awl-bar being part way down to enable the awl to enter the work, its slot is now lower than that in the driver-bar. Consequently the stud g bears laterally against theupper part for convenience, the pin 9 before described.

By reason of this rule-joint the pin which bears against the edge of the upper part of the awl-bar, moves to one side against the spring G. The feeding having ceased, the arm G again descends until its pin 9", having reached the level of the slot in the awl-bar G, enters it, the spring G" throwing the upper part of the awl-bar back into position. The parts now stand again in the position shown at Fig. 8, the whole series of operations of this part of the machine having been performed. Furthermore, to hold the awl-bar down while feeding the work forward, I have provided a spring-actuated movable stop, G entering a notch in the awlbar G, as shown, before the awl'bar rises. This stop is withdrawn from the notch by the action of the cam J, which moves the sliding plate. The awl-bar is held up against falling by its own weight by the spring-friction G.

' I have also improved the construction and efficiency of the lock by which, at the proper time in the operation of the machine, the horn is locked in place. This improvement is illustrated in Figs. 5, 6, and 7, in which H represents the connecting-rod driven, as before, by a rocker-arm upon the supplemental shaft of the machine. This connecting-rod operates to lock and release the rod F, which, through the intervention of the lever F operates to raise and lower the horn-support. (See Figs. 2, 3, and 4.) This con necting-rod H is adapted to raise and lower astirrup-piece, H, attached to a pin, H which is journaled in ears H, which in turn are attached to a box, 11*, within which the rod F passes. Furthermore, between the pin H and the rod F is a looselyfitted dog or clamp, H When the rod F is unlocked, which is its normal condition, the parts stand in the position shown in Fig. 7; but when it is desired to lock the rod the connecting-rod H, if lifted or lowered, moves the stirrup H, thereby partially turning the pin H which is slotted out where it surrounds the clamp or shoe H and its corners bear alternately against the said clamp or shoe, pressing it against the rod F, the other side of the rod being pressed against the box H.

I claim 1. In a boot and shoe pegging machine, the combination, with a drum'which carries the pegging-wire and a rocker-arm operating to feed the same, of a pivoted guide grooved on its upper face and supported upon the rockerarm to rise and fall with it, all substantially as set forth.

2. In a boot and shoe pegging machine, the combination of the rockerarm C the connecting-rod E, the arm E, locking-piece E and shoe E all substantially as set forth.

3. In a boot and shoe pegging machine of the character described, the combinatiomwith the wire-feeding devices having a feed-plate, E formed with a wedgeshaped end, E substantially as set forth, of the fixed jaws E", for cutting off the peg-wire, having a wedge- FF, substantially as described.

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4. In a boot and shoe pegging machine of the character described, the combination, with the wire-locking devices, as set forth, mounted in the sliding block E and the sliding plate E on which the said block is frietionally secured, of the adjustable abutment F, for limiting the downward movement of the said block, and the fixed stop E, attached to the head of the machine for limiting its upward movement, all substantially as described, and for the purposes herein set forth.

5. In a boot and shoe pegging machine, the

combination of the wire-feeding devices, the lever F, engaging therewith, connecting-rod F, foot-lever F and horn F connected with said lever, all substantially as set forth.

6. In a machine for pegging boots and shoes, the combination, with the foot-lever F ,connected at one end with the horn and its supportand at the other with the connecting-rod F, of the straight non-jointed centrally-pivoted supplementary lever F mounted in said foot-lever, as shown, and connected at one end with the clincher-rod F and at the other end with the connecting-rod F, all substantially as set forth.

7. In a machine for pegging boots and shoes, the combination oi'the vertically-movable horn clinching-rod may also impart upward motion to the horn, substantially as set forth.

8. In a machine for pegging boots and shoes,

the combination, with the rocker-arm G of 5 the driving-bar G and the awl-bar G, having afiexible or jointed upper portion, as shown.

9. In a machine for pegging boots and shoes, the combination of an awl-bar, G, the stop G provided with a spring, as shown, and the cam J.

10 In a machine for pegging boots and shoes, the improved device herein shown for locking the horn, it consisting of the combination, with the rod F, of the connecting-rod H, stirrup H, pin H box H, and shoe H all substantially as set forth.

In testimony whereof I have hereunto subscribed my name this 13th day of April, A.

EDWIN E. BEAN. Witnesses:

E. B. TOMLINSON, J. HENRY TAYLOR..

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