US5896A - Shoe-pegging machine - Google Patents

Description

JOEL ROBINSON, OF METHUEN, MASSACHUSETTS.

SHOE-PEGGING lVlACHINE.`

Specification of Letters Patent No. 5,896, dated October 31, 1848i.

To all whom t may concern:

Be it known that I, JOEL ROBINSON, of Methuen, in the county of Essex and State of Massachusetts, have invented a new and useful Machine for Pegging Shoes, which I denominate the Automaton Shoemaker,

of which the following-is a` full, clear, and

exact description, reference being had to the annexed drawings of the same, making part of this specification, of which- Figure l is a top view, Fig. 2 a backfelevation, Fig. 8 is an elevation ofthe leftend, Fig. l is a vertical transverse sectionthrough the line m of Fig. l, Fig. 5 is a vertical longitudinal section throughthe stock (the beam of timber having an arm or standard [04 projecting from its under side the lower y end of which is secured to the rock` shaft by same being removed from the machine) Fig.

6 is a vertical ,section through the guide rod and its supports and the lower end of the awl and punch. Fig. 7 is a vertical section taken through the turning tube charger and driver at the moment the peg is placed in the turning tube, Fig. 8 is a vertical section taken through the turning tube, charger, and driver, and the lower end of the punch at the moment the peg is placed over the puncture made in the sole, ready to be driven, Fig. 9 is a plan of the spiral peg chamber, the pusher and ratchet wheel being removed.

The front and back sides, and the right and left ends of the machine, are respectively marked on the top View, or igure of frame A Figs. l, 2, 3 and 4 is composed of longitudinal and transversetimbers joined.

together in any convenient and suitable way; and of a curved metallic bar of iron A to support the helical spring A2, which is secured to the left end of the woodwork by A screw bolts or otherwise. On the inner side on vpivots suitable bearings formed in the A 1'- adjustive standards A3 Fig. 3 these standards are secured by set screws S to the lower.

transverse timbers of the frame A. .The stock C is mounted upon the rock shaft C3 and secured thereon by a joint pin C7 Figs. l 2 and 5 lon which it is free to turn lthis joint l pin is placed at right angles tothe axis of thevrock shaft-this V'arrangement of the pivots of the rock shaftv and steock-hinge,

form anuniversal 'j oint, which admits of the v shoebeing moved in any direction that may be required to place it in the proper position to receive the pegs.

The stock C is composed of a horizontal the jointpin 07. Upon the upper side of its being removed for the purpose of substitutmg another in its place difering in size, or from it being necessary to haveas many of these guide patterns .of different forms and sizesas there are diHerent forms v and sizes of shoes to be made; because the form andl size ofthe pattern determines the i form and extent of the rows of pegs around This guide pattern the sole of the shoe. is composed of a lower part or base c5 hav.- ing its upper edge raised above the surface forming a rib or guide c6 for the lower end o5 of the guide and feed shaft O to ypress against whenr traversing the groove formed between 'the raised edge c6 and thekupper or cogged part of the pattern; the formfof the plan of the base c5 corresponds in form with the plan of the sole of the shoe, upon the base the `upper section of the pattern c is secured in any suitable way, it is smaller than the base, but in the form of its plan the same and in position placed concentricv therewith. On the edge of this upper part a series of teeth are formed in the manner of a rack in which the teeth of the pinion 06 of the traversing guide shaft O gear, by which means the carriage B and stock Care connected together and mutually adjusted.` The bottom of the roove on the upper surface of the base' ofg the guide pattern is so formed that the end 05 of the guide shaft O while traversing the same may depress the left end of the stock C to raise the `shoes placed on lthe right end against the under side of the stop which has an aperture through it to admit of the descent of the awl and pegs into the sole.` The bottom of the guide groove, is'held against the lower end of the guide shaft, by the pressure of the helical spring A2 which is placed beneath the left end of the stock C. f

In the upper lsurface of the right end of the stock C a suitable receptacle or seat is formed to receive the shoe or boot s, to beV pegged in which seat, or bed the shoe is held by a clamp screw Z and, akey, orother suitable means which admit of one shoe being readily removed and another substituted in it place, this being important,

because since it takesbutabout ve minutes topeg a shoe, it would occupy more time to 1 penetrates the sole of the shoe, making a hole toreceive the peg. Simultaneously with the put them into and take them out of ythe stock, than to, peg them, unless a ready means of performing this operation is` pro- `.y

i turning tube I Figs. 4, 7 and 8 is supplied vided.

This machine is composed of two principal parts, or divisions-the frame with the stock for holding the shoe to be pegged in a horizontal position is in a line with the cogged pattern-and the carriage which is mounted upon the frame, and carries the awl to perforate the leather the spiral chamber to cont-ain the pegs with its appendages to supply them as required and the punch drive them; alsov the mechanism for operating the awl and punch, supplying the pegs and moving the carriage and stock, likewise the winch, fly wheel, and pullies, to which the power is applied which actuates the whole machine. The former of these principal divisions I have described, I will now proceed to a description of the latter.

The carriage is composed of two longitudinal side pieces B B having grooves b, b, Fig. 3 formed in their outer sides corresponding to the ribs, or ways a a of the frame on which they slide; these side pieces are connected by the vertical transverse arches B B2 which are secured to them by screws, or otherwise. To the arch B the parallel horizontal pointed arches B3 B4L are secured in any suitable way. The several arches and the side pieces together, constitute the frame of the carriage, on which are mounted the various contrivances referred to in a preceding paragraph.

The fly wheel E is made of such dimensions that it will give steadiness to the mo-6 tion of the machine; it is mounted upon the main driving shaft F upon which the several cams and segment wheel are also mounted. To the face of the fly wheel a wrist or handle E is secured for the purpose of being laid hold of by the operator to turn it. Between the fly wheel and the arch B2. the fast pully e and the loose pulley e are placed, these pulleys are used in communicating motion to the machine when other than manual power is used to actuate the same. Gr is a rod to the lower end of which the awl G is secured; this rod moves at its lower end in a guide formed by a hole perforated through the `guide rod I-I; its upper end is connected by a joint pin g to the vibrating lever G2 which turns on the rod M as a fulcrum; this lever is connected by a pin (represented by dotted lines `in Fig. l) projecting at right angles from its end, with the eccentric groove of the cam G3; by the motion `of the cam, the pin on the end of the lever is caused to traverse the groove in the same which raises and lowers the end of the lever and the awl connected therewith once while the said. cam is making ve. eighths of one revolution and holds the awl in a raised position, during the remaining three eighths of the revolution; when the awl is depressed by the lever it perforation of the leather by the awl G the with a peg from the charger 7G by the action 1 of 'the driver N; the turning tube is secured at right angles to the rock shaft I, and when charger and it is held in this position by Athe 1 upward pressure of the spring z' against the under side of the right end of the lever 7l. The turning tube I is in the form of a hollow cylinder made of brass or other `metal and having a spring 's on its inner side to keep the pegs from dropping out while it is turning from the horizontal to the vertical position. The rock shaft I turns in suitable bearings formed in therest J and the stud b. The charger 7c is a tube formed at the outer end of the spiral chamber, a groove K Fig. 9 which forms thereservoir for the pegs, this tube or charger corresponds in diameterwith the width of the chamber, and

i is open on the side adjacent thereto, in order The that it may receive the pegs from it. reservoir or chamber to contain the pegs is a spiral groove in depth equal to the length and in width equal to the diameter'of a peg, it is formed in the face of the disk K9 Fig. 9` commencing at the center and extending to the circumference thereof ina regular scroll which'terminates at the charger le, the pegs are arranged in the groove with their points outward so that they may be delivered from the Acharger to the turning tube the point foremost in order that when the tube is turned down beneath the punch as shown in Fig. 8 the head of the peg may be upper,

most. Aft-er the spiral groove is filled with pegs the revolving disk K Figs. l4 and 8 having ratchet teeth formed on its periphery, is placed over them to keep them in the groove; this disk is secured upon the pivot /62 on which it turns the forked key la passed over said lpivot in a groove formed near its outer end. In this disk a radial slot k3 Figs. 4 and 8 is made, through which the pusher la* is passed and in which it is free to slide; this pusher on its inner end is made the same size of the pegs and is inserted into the groove K behind the pegs for the .purpose of forcing, or pushing them around to the charger; it is caused to traverse the groove and force the pegs around by the revolving of the disk K.

The disk K9 in which is the reservoir K is secured tothe carriage frame by the hanger K2 Figs. 8, 4 and 3.

The driver N Figs. 1, 2, 7, and 8, is a cylindrical piece of metal rather smaller in dig ameter than the charger, it slides in circular holes formed in the hanger K2 which is bent round in a suitable form. for that purpose, the position of the driver in its guides is in a right line with the charger-in the center of the driver a notch is made for the purpose of connecting it with the forked end of the lever N turnson the pivot n Figs. 1 2 and 7 backwards and forwards to push the pegs out of the charger into the turning tube; the

lever N turns on the pivot fn. Figs. 1 2 and 7, A

as a fulcrum which pivot is secured to the bent standard, or elbow b2: the lever is moved to the right at its lower end by the oblique stud n Figs. 1, 2, and 7 which is secured to the side of thev cam I2 and which presses against the projecting arm n2 of the upper end of thelever as it is turned around with the cam. As soon as the upper end of the lever has been thus moved to the left and the lower end to the right forcing the driver through the charger and pushing the peg into the turning tube the oblique stud n3 which is afliXed to the face of the segment wheel O, then immediately comes into contact with the projecting arm nf* on the opposite side of the upper end of the lever N and presses it to the right which causes the lower end to move to the left bringing with it the driver which is thus withdrawn from the charger, this latter operation is completed simultaneously with the withdrawal of the awl from the lgather when making' the hole for the peg. Immediately upon the awl being raised out of the leather the sliding guide bar H Fig. 4 moves over toward the front of the machine carrying with it the awl a distance equal to the spacefrom the center of the awl, to the center of the punch thus bringing the punch directly over the hole made in the leather by the awl, where it is held until the peg has been driven into the shoe and the punch raised again out of the turning tube by the action of the spring Z Fig. 4 the lever L being relieved by the cam L2 at that moment.

rIhe guide bar H rest-s on its front end in the cylindrical tube J in which yit slides backward and forward in moving the awl and punch to and from the line of the pegs, within the tube is placed a helical spring jg Fig. 6 for the purpose of forcing the bar toward the back of the machine, the action of the cam IP against the arm H3 only moving it toward the front; the tube J is supported on a standard j erected uponthe rest J the back end of the guide bar is suspended by ar joint pin to the lower end of the vibrating arm H of the rockshaft I-I2 Fig. 4; the arm H3 is kept in contact with the cam H4 by the pressure of the helical spring y'2 Fig. 6 acting against the end of the guide bar H which forces the lower arm H of the rockshaft toward the back of the machine and t-he upper arm H3 toward the I front or against the cam H4 Fig. 4; this cam soon as the hole for the peg hasbeen punctured and the awl raised again; the cam will also hold the awl aside until the peg is driven and the punch raised out of the turning tube, when it immediately relieves the arm H3 which admits of the awl being brought back again into the line of the pegs, as before described. At the same time that the awl is thus brought int-o position the carriage is moved on the line of the pegs and the shoe is adjusted so as to bring it into the proper position to have another hole punc-` tured and another peg driven.

Simultaneously with the removal of the awl to one side of the line 0f pegs the turning tube is changed from the horizontalto the vertical position placing the peg in a vertical vposition also with its head uppermost, directly over the hole and beneath the punch ready to be driven; the turning of the tubeis effected by the cam I2 Figsl yand 2 striking the vertical sliding rod /IB and depressing it, which forces down the inclined connecting rod 2'2- depressing the lever i3 on the left of its fulcrum and raising it on the right which turns the arm z" and the rockshaft I and tube I through an arc of ninety degrees into the position in which they are severally represented by the dotted lines in Fig. 8; the camI2 is so shaped and arranged that it will hold the turning tube in the vertical position until the peg has been forced into the shoe and the punch raised again, when it instantly releases the tube and by the joint action of the spring z' on the arm z" of the rockshaft I and the helical spring ja surrounding thev rod I3 and pressing it upward the tube I is turned back into the horizontal position as seen in Fig. 4 and the rods, levers, and arms, again assume the position indicated by the'dark lines, in Fig. 8. NeXt the peg is punched, or forced into the leather by the sudden depression of the punch L Figs. 2, 4 and 8; the punch is formed on or secured to the lower end of the rod L whichv moves in a circular guide perforated through the guide bar H Fig. 6 in like manner with the awl G, the upper end of the rod L is connected with the lever L Figs. 1 2 and 4 loo which turns on the rod M as a fulcrum, the rear end of the lever is held against the cam L2 and the punch is raised by the upward pressure of the helical spring Z; the cam L2 is so formed and arranged that immediately upon the peg being placed over the hole made in the leather by the awl, it causes the punch to descend upon and drive it, instantly releasing the punch again to allow thespring to raise it. Simultaneously with the driving of the peg into the shoe the charger is supplied with another peg from the spiral chamber by the turning of the ratchet disk Kl which moves the pusher 734 against the pegs, pushing them forward or around in the spiral chamber K; this operation is effected by means of the ratch or reaching arm K7 connected with the lever K2 by a joint pin; the fulcrum of this lever is the rockshaft H2 the lever is held against the cam K4 by the pressure of the spring 764 this cani is so constructed and arrangedthat when the peg is being driven it comes into contact with the lever K3 moving it'backward and pulling the ratch K7 with it, which being in gear with the disk, or ratchet wheel K', the latter is turned on its axis a distance equal to the space through which the ratch is moved; the motion of the ratch is governed by the set screw 705 which allows it to approach nearer to, or farther from the cam. After the cam K4 has forced the lever and ratch back, the spring 7a4 presses the lever forward again causing the ratch to advance over one'or more teeth of the disk K for the purpose of again turning it, when they are next drawn back by the cam. The dogs or pawls 726 keep the disk from turning back again. After one peg has been driven and the charger supplied with another the shoe is moved a distance on the line of the pegs equal to the space it is required to have from the center of one peg to the center of the next. This is effected by means of the cogs and groove of the guide pattern C and the traversing pinion 0 and guide and feed shaft O; the segment wheel O is secured to t-he end of the main shaft F, its teeth are j i turned about one eighth of a revolution farsecured lby screws formed on thin shanks, which are inserted in corresponding holes made in the face of the wheel, these teeth gear into the pinion O2 and as there area greater or less number of them placed in the wheel the pinion is turned more or less; the pinion O2' is secured to the shaft O3 on the opposite end of which the screw O4 is placed, which gears into the wheel 02 mounted upon the upper end of the shaft O, which it turns, the pinion Ofs on the lower end of the shaft gears into the rack of the pattern C', and when turned, by the oblique pressure of the teeth of the pinion and the rack against each other the lower end of the shaft is held against the outside of the groove in the pattern which causes the stocks and the shoe secured to them to move from side to side, and in curved and in right lines exactly corresponding to the plan of the groove of the pattern and at the same time the carriage is moved backward, forward, or remains stationary according as the line of the pegs is backward forward or across the shoe; when the line of the pegs is directly across `the sole as at the toe of a square toed shoe the spaces between the pegs are produced by the movement of the stocks alone and when the line of pegs is in the direct line of the length of the shoe, or parallel to the line of progress of the carriage as on the sides of the ,shoes the ldistance between the pegs is produced by the motion of the carriage alone butwhen the line of pegs is obliquely across the shoe the distance between the pegs is produced by the simultaneous movement of the stocks and carriage.

I have not entereduinto a particular description of the cams from `which the varied motions of the machine are derived, because 'they are common devices, and their principle and modesof action arewell understood, and also beca-use they'may be considerably varied in their size and proportions and would yet produce the desired effect.

Havingincidentally described the opera-j;

tion ofthe parts severally, in describing their construction, I will now briefly describe their operation in connection. The soles being placed on the last and adjusted tothe upper leather of the shoe in the same manner that the operation would be performed preparatory to pegging it `on by hand; the shoe and last are now secured properly to the stocks, the carriage is next run out to the right until the pinion 06 and guide shaft O are placed at the center of the heel, the reservoir being supplied with pegs and other parts properly adjusted the operator vnow lays hold of the handle E" and turns the fly wheel E and the cam shaft F on which it is mounted about five eighths of one revolution, which punctures the soles and supplies the turning tube with a peg from the charger; neXt the fly wheel E is ther around which will remove the awl to f one side of the line of the pegs and bring the punch immediately over the hole, the turning tube will also be now placed in a vertical position holding the peg erect with the point downward, directly over thehole f and beneath the punch; by turning the fly wheel E one eighth of a revolution farther around, the peg will be punchedinto the shoe and the charger supplied with another peg from the spiral chamber or reservoir; the ily wheel is now turned the remaining eighth which completes the revolution, by which the stocks and carriage are mutually adjusted, so as to bring the awl in advance of the peg last driven in the proper position to puncture a hole in the leather for the next peg. This has brought the fly wheel and main shaft into the position they were in when the operation began and completes the operation of putting one peg into the sole of the shoe. The turning of the fly wheel E is continued until the shoe is pegged every revolution inserting one peg by the successive operations just enumerated.

If it is required to make two rows of pegs l around the sole, a cylindrical ring is placed upon the lower end or guide pivot of the shaft O which in thickness corresponds to the distance at which it is required to place the rows of pegs apart, this causes the teeth of the pinion and rack to take deeper into gear bringing the centers of the guide pivot and of the patern nearer together which is equivalent to using a smaller pattern. 1 The ring or thimble is ut on after the outside row of pegs is ma e instead of the spiral chamber for supplying the pegs to the turning tube, thewood cut into strips for pegs in the usual manner, and unsplit may be supplied to the machine in any convenient way and each peg cut oil' as the driver is ready to convey it to the turning tube, this mode of supplying the pegs would save the labor of arranging them one by one in the reservoir with their points all one way but the benefits of thisV arrangement would be iny "some measure counterbalanced by the. liability under it to miss driving'a peg occak sionally by reason of the defects in the strips of wood from which they are cut.

Having thus fully described the construc- .tion and operation of my invention; what I claim therein as new, and desire to have secured to me by Letters Patent, is

1. Holding thev Shoe on rocking, turning or moving stocks, in the proper position to be pegged, whether the same be constructed, arranged and operated as herein described or in any other way by which similar results are produced.

2. I also claim; the simultaneous intermittent movement of the carriage (B) and stock (C) by means of the cogged and proper position to be driven therein,y

whether the same be made and operated as herein described or in any other mode sub-l stantially the same.

4. I also claim the manner 'of supplying the turning tube' (I) with pegs from the charger (la) at suitable intervals by means of a vibrating driver (N) constructed arranged and operated substantially as herein described. f

5. And lastly I claim the employment of a spiral chamber, or groove (K) to contain the pegs and supply them to the charger (k), one at a time, by the simultaneous intermittent action of the transverse pusher (704)' and ratchet wheel (K), or otherwise, in combination with the charger lo, driver N, turning tube I, awl G and punch L, arranged and operated in the manner and for the purpose described; but I wish it to be distinctly understood that I do not claim the spiral chamber K, nor its use as a supplier, as it has been used for percussioncaps in lire arms, provided with a traversing pusher similar to mine; but I merely claim its employment in combination as above stated,

vember A. D. 1847.

JOEL ROBINSON. Witnesses:

P. H. WATSON, A. E. I-I. JOHNSON.

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