US130301A - Improvement in pegging-machines - Google Patents

Description

. Sh HI KUHLMANN. 3 ee`ts Sheet!l improvemen't in lPegging-Machines..

No. 1301,301.v y l Patented Abg. e, 18721;.

H.KUHLMANN.

3 Sbeets--Sheet'L fmprovgentih Pegging-Machines Patented Aug. 6,1872. Y

--S H' KUHLMANN ISSheets heet3 lmproveument in .Pegging-M'achines.

No.l 130,301. I Patented Aug. 6,1872.

Figa

PA'IEN'I' OFFICE.

HEINRICH KUHLMANN, or GLcxsTADT, GERMANY.

IMPROVEMENT IN PGGlNG-MACHINS.

Speciiication forming part of Letters Patent No. 130,301, dated August 6, 1872.

Specification describing certain Improvements in Pegging-Machines, the invention of HEINRICH KUHLMANN, of Glckstadt, Germany.

This invention relates to machines for making what is known as pegged work in the boot and shoe trade 5 and consists in various devices or combinations of devices having certain denite or peculiar actions, and which, when united in the one machine, punches the holesin the boot or shoe for reception of the pegs, feeds the boot or shoe to receive the pegs one by one in succession, cuts the pegs one at a time from a strip or strips carried by a holder or feeder that has a compound movement, and drives the peg, after it is cut, into the hole made to receive it.

In the accompanying drawing, which forms part of this speciiication, Figure 1 represents a partly sectional side elevation of a machine constructed in accordance with the invention; Fig. 2, a partly sectional front-end view of the same; Fig. 3, a horizontal section, mainly at the line a: w, as in Fig. l; Fig. 4, aview of certain pinchers connected with the mechanism and devices for operating them; and Fig. 5, a

transverse section of the peg-feeder at the line z z, as in Fig. 3.

Similar letters of reference indicate corresponding parts throughout the several figures of the drawing.

A is the main frame, carrying the working parts of the machine, and consisting in part of a bed or table, B. O is the drivingshaft, arranged above and operated by belt and pulley D through a treadle-motion from below or otherwise, also being fitted with a ily-wheel, E. F is the slide which carries, by means of adjustable heel and toe supports or restsmounted onit,thebootorshoe,withitslast,

sole uppermost. The slide is adjustable along the machine-that is, in direction of the width of the boot or shoe-by means of a hand-lever, G which the operator holds in his left hand, while he controls by his right hand a lever,-H, the function of which will be hereinafter explained.

,The boot or shoe' is moved in direction'of its length by a sub-slide, I, on which the slide F travels, usaid second slide moving on a dovetailed way or ways, J, fast to the bed B, and arranged in transverse relation with the upper slide, so that the two slides move in directions which are at right angles to each other. This second or under slide I is operated automatically to provide for the insertion of the pegs in the boot or shoe in regular order by means of a pitman, b, worked by the main shaft C, and arranged to rock a shaft, K, below the-table. which shaft K carries a grooved cam, c, that serves to actuate a pawl and ratchet mechanism, L, which gives motion to a screw, M, to rotate it in one direction so as to insure the forward feed of the slide I, with which said screw is in gear by a box, N. This box is connected with a weighted lever, O, that may also be controlled by a spring, d, whereby said box, which is made capable of being moved transversely with the screw, is held in gear with the screw to secure the necessary automatic action of the slide I, yet permitting, by raising the lever O of the box N, being uncoupled from'the screw, so that the slide I, with the slide or shoe-holder F uponrit, may be run back by hand. The screw M may also be operated by hand through a crank or handle, e, to set the boot or shoe holder in position to commence the work of pegging.

The shoe being brought in position under an awl, P, the latter descends and punches the hole as required for reception of the peg. Said awl is raised by a cam, Q, on the driving-shaft C, the nose and interior of the cam first operating on an arm, f, attached to the sliding stock g, which carries the awl, and then the exterior of the cam working under said arm to keep the awl in its raised position until the heel of the cam passes the point of the arm, when a spring, h, pressing down on the stock g, suddenly forces the awl down into the work. After the awl I has been raised, or while it is being lifted, a peg-feeder moves forward to deposit a peg in the hole made by the awl; This feeder consists mainly of a movable holder, S, having a groove, t', all along and on the inside of its one side or face, and a box or chamber, t, in its rear portion. The groove t' is of a depth or width corresponding to the length of the peg to be used, and enters the side of the holder equal to the thickness of the peg, so that said recess or groove is capable of receiving within it, successively, one of a number of wooden strips, k, having their longitudinal edges uppermost and undermost, and with the lliber of the wood running transversely of the length of the strip to facilitate its being cut into pegs. The lower edge of each strip should be chanifered off to give point to the peg. The box portion t of the holder S serves to hold a number of these strips lc face to face, with their sharpened edges downward, and exed, as represented in Fig. 3, between the forward end of the box and an adjustable piece, u. A spring, t, at the back of this cluster of strips, serves to keep them flexed, as required, and to force them toward the groove@ in the holder. Another spring, w, actin g upon a plunger, y, operates to shoot the forward end of each inner strip successively into the groove t', and so that it is made to pass through the front of the box t to or between feed-rollers a1 bl-the one, b1, of which only has a positive motion, while the other, al, is merely carried by a slide subject to the control of a spring, c1, to press the strip up against the roller b1, and so as to pinch the strip in between the rollers. These roller feeding devices are carried by the peg-feeder, and are operated, as hereinafter described, to feed a strip at a time -along the groove t' and over a vertical opening,

d1, in the front end of the holder, down through which the peg, as it is cut from the strip, is delivered by a hammer, as hereinafter described, into the hole formed by the awl in the boot or shoe. The chip or strip holder S of the pegfeeder is of a bar-like construction, and is fitted to slide longitudinally, by means of dovetail grooves or guides, along a frame, T, in a horizontal direction toward or from the shoe. The frame T also has a vertical motion up and down on face pieces or strips on the main frame A. In this way a twofold motion is communicated to the peg-feeder, which enables it at its forward end to ride overthe curvature of the shoe-sole, in close proximity to the latter. rllhe horizontal motion of the holder S is effected by a grooved cam, e1, on the driving-shaft G, a lever, f1,`and a sliding shaft, g1, carrying a slotted arm, h1, which takes hold of a pin or arm, t1, attached to the back of said holder. The vertical motion is produced by a cam, k1, on the shaft G. This cam operates a lever, l1, which slides a horizontal rod or shaft, m1, carryin g a slotted arm, nl, which works a bellcrank, o1, that is connected with a verticallysliding rod, p', attached to the frame T. In this way the peg-feeder is reciprocated longitudinally to and from the work, and simultaneously raised and lowered to conform to the curvature of the sole and to bring a stud or projection at the base of the delivery-hole d1 in the end of the feeder, directly over the hole made by the awl, for reception of the peg. To insure this action the fulcrum q of the bellcrank o1 is, to a certain extent, free to rise and fall by being attached to a vertically-sliding rod, r', which is held by pinchers, U, on the table B. These pinchers are opened when the hole d1 in the feeder is being adjusted over the hole made .by the awl, to admit of the rod 1" and fulcrum of the bell-crank then dropping, whereby the feeder is adjusted to or brought upon the sole, as required, should it otherwise fail to bear down on the work, and which it might be liable to do from a variety of circumstances, including a vertical adjustment of it -by hand, which is provided for by the lever H to meet the varying shapes and peculiarities of the work. The pinchers U are closed by spring pressure or action, but are opened at the interval named to release hold of the rod r by a wedge, s', actuated by a rocking vertical shaft, t', which is operated by a cam, u', on the driving-shaft G. The lever H is made to adjust the peg-feeder up or down to set it in conformity with the work by a tappet-like motion, as by'said lever or a projection, t', on a rod, w', fast to a vertical slide, V, coming in contact with projections on the sliding rod p of the frame T. Said lever H also serves to adjust up or down the independent slide V, which has a socket, a2, at its upper forward portion, into which is fitted the stem or shank of a guide, b2, for the edge of the shoe-sole to bear against. This guide b2 'may be a roller with or without a finger-piece above to rest upon the sole, and it is made adjustable in or out of the socket a2 to vary its fixed projection, as required. It is or may also be made automatically adjustable in or out for every other peginsertion when double rows of pegs are required in the sole. This is effected by a cam, c2, on a counter-shaft, cl2, driven by gearing from the shaft C, so as to revolve only once for every two revolutions of the main shaft C, said cam acting by a lever, e2, on a horizontally-slidingv vertically-slotted piece or frame, W, with which a projection from the shank of the guide b2 gears or is connected to force out the guide again st the edge of the sole; or, in other words, to adjust the shoe or its sole under the awl P for the outer row of pegs, while a spring, f 2, acting against a sliding rod, g2, fast to the vertically-slotted piece W, draws back the guide b2 to provide for the adjustment of the sole for its inner rowof pegs. The chip or strip k, of wood, in the groove i of the advance portion of the holder S, has a peg cut from its forward end, each time the peg-feeder is retired from the work, by a double-leaved cam, h2, on the counter-shaft d2, acting against an arm, i2, of a vertical rock-shaft, k2, which carries a crank, l2, that operates a slotted lever, m2, which is in ball-and-socket connection with the knife n2. Said knife or its stock is fitted to slide in adjustable dovetailed guides at the forward end of the peg-feeder, and is projected in an oblique direction into the strip to give it a draw-cut. It is retired from the cut by a spring, o2, acting against the arm i2 of the vertical shaft k2. The peg thus cut is not discharged from the peg-feeder till the discharge-opening d1 arrives over the hole made by the awl P in the sole, and the lower portion of the forward end of the feeder or projection therefrom comes down on the leather over or around said hole. When the peg-feeder is in this position the cut peg is discharged through the openin g dl and forced home to its place in the boot or shoe by a vertically-sliding hammer, A, which, in its descent through the opening d1 in the peg-feeder, travels in the same line or path as the awl P, but alternately with the latter. It is turned out of such path, however, as it completes its ascent, to allow of the awl passing it, and returned to such line or path as it commences its descent and after the awl has been raised, by attaching the hammer A' to its sliding stock a3 by an arm, b3, and causing the stock for a portion of its stroke to be rotated on its axis by means of a pin, c3, on the stock traveling within a spiral or inclined groove, d3, in the frame. Otherwise the hammer A' is operated in like manner and by similar means as the awl P, but alternatelyv with the latter-that is to say, it is actuated b'y a cam, Q', on the main shaft C, similar in shape to the cam Q, and operating against an arm, f3, attached to the hammer-stock for the purpose of lifting the hammer and holding it raised the necessary length of time, after which a spring, h3, operates to suddenly shoot or depress the hammer to drivehome the peg as soon as the cam Q clears the arm f3 of the stock. The strip k, from which the peg has been taken, is then fed forward along the groove t in the peg-holder S by the action of the feed-rollers al b1, the latter roller being operated in a suitable direction to eii'ect the feed as the holder S is reciprocated longitudinally by an arm, 3, of a ratchet-operating device connected with the roller b1, and controlled by a spring, k3, being brought in contact with the frame A, and moved during the back stroke of the holder S, and so that on the latter again moving forward the spring k3 will cause the ratchet to be operated and the roller b1 to be moved the necessary distance to project the strip k along the groove i till its forward end again strikes the front end of said groove, another strip, k, from the cluster in the box t of the holder S being automatically entered at its forward end between the feed-rollers a1 blso soon as the previous strip in the .groove has passed the rollers, and the slide F, carrying the shoe, bein g automatically fed the distance it is required to arrange the next peg-hole from the previous one before the peg-feeder again comes forward and bears down on the sole over the hole made by the awl in its succeeding descent. To continue the operation the only'r attention required of the operator is to keep the machine in motion while he controls with his left hand the lever G to keep the edge of the sole up against the roller b2, and with his right hand the lever H, when the several devices for doing the work, being timed to act in proper relation with each other, will repeat their required actions.

What is here claimed, and desired to be secured by Letters Patent, is-

1. A movable peg-feeder constructed to hold a stripor strips from which the pegs are out, as required, by a knife at the forward end of the feeder,lin combination with a strip-feeding mechanism and channel or groove for guiding the strip to the knife, so that the peg is cut over the discharge-hole in the feeder, substantially as specified.

2. The strip-holder S constructed to have a longitudinally reciprocating and rising and falling motion, essentially as described.

3. The strip-holding box t of the movable peg-feeder, in combination with the spring c, vthe automatic plunger y, the groove i, and the strip-feeding rollers al b1, substantially as specified.

4. The combination of the lever Hwith the vertically-sliding frame T and cross 'or lon gitudinally-slidin g holder S,when said frame and holder have an independent rising-and-falling motion communicated to them automatically, essentially as described.

5. The combination of the pinchers U with the shaft r1, the bell-crank o1, and the rod p' of the risin g-and-fallin g frame T, substantially as specified.

6. The combination of the lever H with the slide V and roller or guide b2, essentially as described.

7. The combination of the intermittentlyreciprocating frame W with the adjustable roller or guide b2 and slide V, substantially as specified.

8. The combination, with the knife u2 carried by the movable peg-feeder of the rock-shaft k2, crank Z2, and slotted lever m2.

9. The combination of the longitudinallyreciprocating and axially-rotatin g hammerstock a3 with the arm b3 and hammer A', when the latter is arranged in relation with the awl P essentially as described.

10. The combination of the awl P and hammer A1 with the peg-feeder, when these parts are arranged for operation, in relation with each other and with the peg-discharging hole `d1 in the feeder, substantially as specified.

11. The combination of the shoe-slide F and its operatin g-lever G with the rising-and-falling frame T of the peg-feeder and lever H, substantially as described.

HEINRICH KUHLMANN.

Witnesses:

FR. WIRTH, S. JEBENKIEWER.

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