US2469467A - Machine for shaping uppers over lasts - Google Patents

Description

May 10, 1949. B. JORGENSEN 2,459,467

MACHINE FOR SHAPING UPPERS OVER LASTS Filed Jan. 2, 1947 5 Sheets-Sheet 1 Inventor Ber'nharclfJbrgensen B his Attorney May 10, 1949. B. JORGENSEN 2,469,467

MACHINE FOR SHAPING UPPER S OVER LASTS Filed Jan. 2, 1947 I 5 Sheets-Sheet 2 macaw" 136u76 I 14 2 940 132 g 125 nven tor 204 176 306 Bernhar'ai'Jorgensen' By his Attorney May 10, 1949. JORGENSEN 2,469,467

MACHINE FOR SHAPING UPPERS OVER LASTS Filed Jan. 2, 1947 5 Sheets-Sheet s Inven for 'Bernhardt Jorgenserz By his Attorney May 10, 1949.

B. JORGENSEN MACHINE FOR SHAPING UPPERS OVER LASTS Filed Jan. 2, 1947 5 Sheets-Sheet 4 [n-ven for BernhardtJJ/"germen B his Attorney May 10, 1949. B. JORGEN SEN MACHINE FOR SHAPING UPPERS OVER LASTS L S'Sheets-Sheet 5 Filed Jan. 2, 1947 Y Inven for B er'phardt Jorgensen By his Attorne movements of their Patented May 10, 1949 UNITED This invention relates to machines for shaping uppers over lasts, and is herein illustrated as embodied in a modification of a iorepart sidelasting machine shown in United States Letters Patent No. 2,423,454, granted on July 8, 1947, on an application of mine, which it is an object of the invention to improve in certain respects. It is to be understood, however, that the invention is not limited to the embodiment herein disclosed foreparts of shoes.

The machine shown in the above-mentioned Letters Patent is provided with grippers which grip the margin of an upper on a last at the opposite sides of the forepart of the last respectively and, together with supports on which they are mounted, are moved heightwise of the last to pull the upper by fluid-operated mechanisms also mounted on the gripper supports, these fluid-operated mechanisms acting pers and their supports by tom of the shoe or last through holddowns supported by the mechanisms and engaging the margin of an insole on the last. In the upper-pulling operation springs in the pressed more or less by the fluid-operated mechanisms in response to resistance of the upper to the force of the pull applied thereto. To permit the margin of the upper after the pull to be wiped inwardly over the vided for that purpose, the grippers are caused to release the upper and simultaneously also the operating fluid is released from the above-mentioned fluid-operated mechanisms which operate the grippers. Return movements of the grippers :1.

heightwise of the last are,

other means acting on the gripper supports, and by such other means the grippers and their supports are moved still farther heightwise of the to insure against any interference of the grippers with the wipers. Return movements of the fluidoperated mechanisms when the fluid is thus released therefrom are accompanied by retractive last relatively to the grippers and the gripper supports, the expansion of the springs in the holddowns, however, tending to retard somewhat the insole-engaging portions to the machine the holddowns are so mounted as to permit them to be moved more or less inwardly over the insole by pressure of the upper thereon if they are still in the paths of the wipers as the upper is wiped inwardly.

MACHINE FOR SHAPING UPPERS OVER LASTS Bernhardt Jorgensen, Marblehead, Mass., as-

signor to United Shoe Machinery Corporation, Flemington, N. 1., a corporation of New Jersey Application January 2, 1947, Serial No. 719,866

31 Claims. (01. 12-101) a purchase on the botholddowns are cominsole by wipers promechanisms.

however, prevented by OFFiCE One object of the present invention is to provide a construction such as to insure a more prompt withdrawal of the holddowns from engagement with the insole when the grippers release the upper, thus avoiding any danger of displacement of the margin of the insole by inward movements of the holddowns in engagement therewith, especially if the bottom of the last has a very pronounced lateral curvature. For the or to machines for operating on the sides of the in urpose in view the construction herein shown is such that portions of the above-mentioned gripper supports of the earlier machine, which are moved heightwise of the last in the direction of the pull upon release of the upper by the grippers, are directly and positively connected to the holddowns instead of to the grippers independently of the fluid-operated mechanisms which operate the grippers, so as to serve primarily as holddown supports and to withdraw the thus to move the gripholddowns immediately from the insole regardless of expansion of the holddown springs and of such lag as there is in the return of the fluid-operated mechanisms as the fluid is forced out of these mechanisms. The grippers in the construction shown are initially supported directly by the holddowns through the fluid-operated mechanisms and therefore indirectly by the holddown supports relatively to which they are moved heightwise of the last in pulling the upper. insurance is afforded against interference between the grippers and the wipers both by the above-mentioned movements of the holddown supports after the release of the upper and by the lag in the return of the fluid-operated The invention further provides improvements relating to the proper positioning of the shoe and of parts thereof prior to the operation of the machine on the upper. In the use of the machine last in the same directions as in pulling the upper to sho n n he abo ned et e s Pa e the shoe is presented by the operator with the bottom of the forepart of the insole in engagement with a sole rest which determines the position of the shoe heightwise, and with the fore movements of the holddowns heightwise of the 45 part of the shoe between side gages ch position it laterally by contact with its opposite sides. As shoe is thus presented the bottom of the forepart of the insole, in locations spaced inwardly from the edge of the insole, is also subaway from the insole. To insure against damage so stantially in contact with the inner jaws of the grippers. i. the jaws which engage the inner face of the upper, and prior to the starting of a cycle of operations of the machine the grippers, together with the holddowns associated therewith, are moved outwardly over the insole widthwise of the shoe by fluid-operated means to cause the margin of the upper materials to be properly spread from over the insole prior to the closing of the grippers. Simultaneously with such outward movements of the grippers a toe rest is moved into engagement with the shoe at the top of the forepart and clamps the shoe against the sole rest. Since the portions of the margin of the upper engaged by the grippers are usually inclined more or less inwardly over the insole when the shoe is presented to the machine, it has been found that the operator can more readily present the shoe with the margin of the upper materials properly positioned between the jaws of the grippers if he is able to shift the shoe lat orally in different directions in thus presenting it. Accordingly, the construction herein shown is such that the shoe is not positioned laterally by side gages, but is free to be shifted laterally when it is presented to the machine, and the outward movements of the grippers over the insole are depended upon properly to position the shoe laterally by engagement of the inner jaws of the grippers with the margin of the upper, the rippers being moved outward to definitely predetermined positions. It is practicable thus to position the shoe because of the fact that the portions of the margin of the upper engaged by the grippers are located between portions thereof which have already been secured to the insole and are therefore sufficiently resistant to the pressure of the inner jaws of the grippers thereon for the purpose in view. In order that the shoe may be free to shift laterally as it is thus positione'cl by the grippers, the movement of the toe rest to clamp the shoe against the sole rest is postponed until after the beginning of the cycle of operations of the machine. Advantageously also the construction herein shown is such that when the shoe is presented by the operator the insole is engaged by the inner jaws of the grippers and by the holddowns, but not by a portion of the sole rest which thereafter engages it in a location between the grippers, this construction not only facilitating the proper positioning of the shoe by the outward movements of the grippers, but also insuring that regardless of the lateral curvature of the bottom of the last the grippers will properly spread the different layers of the upper materials from over the insole and the holddowns at the termination of their outward movements will press the margin of the insole on the last. When the toe rest is thereafter operated to clamp the shoe against the sole rest, the grippers and the holddowns are moved by the shoe as may be required to permit the insole to engage the above-mentioned portion of the sole rest.

The above and other features of the invention, including also novel means aiiording provision for yielding movements of the holddowns lengthwise of the shoe and various novel details of constructicn and combinations of parts, will now be more particularly described with reference to the accompanying drawings and thereafter pointed out in the claims.

In the drawings,

Fig. 1 is a view in right-hand side elevation of the upper portion of the machine in which the invention is herein shown as embodied, with parts broken away;

Fig. 2 is a plan View of the upper portion of the machine with the position of a shoe in the machine indicated diagrammatically;

feig. 3 is a section on the line III-III of Fig. 2;

Fig. 4 is a plan view on a larger scale of a portion of the structure shown in the left-hand half of Fig. 2, with parts broken away;

Fig. 5 is a view partly in elevation and partly in section, showing the grippers and portions of the structure associated therewith as viewed in the directions indicated by the arrows A in Fig. 2 and as they appear in relation to a shoe when the shoe is first presented to the machine;

Fig. 6 is a perspective view of a portion of the structure shown in the left-hand half of Fig. 5, with a part broken away;

Fig. 7 is a perspective view showing mainly the forepart of a shoe ready to be presented to the machine;

Fig. 8 is a View similar to a portion of Fig. 5 with the parts as they appear just after the grippers have been moved outwardly over the insole to position the shoe laterally;

Figs. 9, 10, 11 and 12 are sectional views similar to portions of Fig. 5 with the parts as they appear at different times in the course of the cycle of operations of the machine;

Fig. 13 is a plan view showing the wipers as they appear at the time in the operation of the machine represented by Fig. 11, with the gripper Jaws and holddowns in section; and

Fig. 14 is a view illustrating diagrammatically the relation of difierent fluid-operated mechanisms to the source of operating fluid and to the means for admitting fluid thereto and releasing it therefrom.

In view of the disclosure in the above-mentioned Letters Patent only such portions of the machine as it is necessary to refer to for an understanding of the invention are herein shown, and such parts as are common to the prior disclosure will be only briefly described. The machine has a frame 2 (Fig. l) on the top of which are secured upwardly extending plates 4 supporting a hori zontal top plate 6. Pivotally mounted substantially midway between its opposite ends on a pin 8 supported by a forked member ID fast on the top plate 6 is a forwardly and rearwardly extending lever I2 provided at its front end with a sole rest I (Fig. 2) arranged to engage the bottom of the forepart of the insole of a shoe to determine the position of the shoe heightwise and with respect to tipping movements about axes extending lengthwise and laterally thereof. A portion of this sole rest engages the insole near the end of the toe and another portion ther'e'oi has downwardly extending pres'ser .feet I 5 (Fig. 13) for engaging it at the ball portion of the shoe between the side grippers hereinafter described. The initial position of the lever I2 is determined by a stop It on the plate 6, against which the lower face of the front arm of the lever is held by a light spring l8. By other means hereinafter described the lever is held initially against swinging movement in response to upward pressure of the shoe against the sole rest M, so that the sole rest serves positively to determine the position of the shoe heightwise when the shoe is pressed against it.

Mounted on the front end of an arm 20 which is fast on a rockshait 22 supported in bearings in the plates 4 is a toe rest 24 arranged to engage the forepart of the shoe underneath and to clamp the shoe against the sole rest 14. For thus operating the toe rest there is fast on one end of the rockshaft 22 a rearwardly extending arm 26 arranged to be operated by a piston 28 movable in a cylinder 30 secured on the top or the frame 2. Extending upwardly from the piston through the closed upper end of the cylinder is a piston rod 32 connected by a link 8 to the lower end of a rod 36 extending upwardly through a block 38 which is pivotally mounted on the rear end of the arm 28. Confined by a nut 48 on the upper end of this rod is a collar 52 which bears on the upper end of a spring M the lower end of which is seated on another collar 48 in engagement with the upper end of the block 38. It will thus be seen that in response to downward movement of the piston 28 the toe rest 24 is swung upwardly to clamp the shoe against the sole rest I4, after which the spring #54 is compressed by further downward movement of the piston to hold the toe rest firmly against the shoe, the rod 36 sliding downwardly through the block 38. For thus operating the piston, operating fluid, preferably light oil, is supplied to the upper end of the cylinder 30 through a bore 48 in the cylinder from a pipe line 58 leading from a source of fluid supply hereinafter referred to. When the fluid is released from the cylinder 38 the piston 28 is moved upwardly to its initial position by a spring 52 the lower end of which is seated on a flange on the cylinder and the upper end of which presses against an arm 54 fast on the piston rod 32. When the piston is thus moved upwardly the link 34 serves by engagement with the lower end of the block 38 on the arm 28 to return the toe rest to its initial position.

For pulling the upper the machine is provided with a pair of grippers 58 (Figs. 5 and 13) arranged to grip the margin of the upper respectively at the opposite sides of the ball portion of the shoe in locations between portions of the upper previously fastened to the insole by side pulling-over tacks t (Fig. 7) and by staples 5 used in lasting the shank portion of the shoe. Each gripper includes an inner jaw 58 arranged to engage the inner face of the margin of the upper materials and having an upwardly extending portion positioned between two lugs 86 extending downwardly from a cylinder 82 supported as hereinafter described. Two pins 8% and extending through these lugs and through the upwardly extending portion of the jaw hold it in fixed relation to the cylinder. Pivotally mounted on the pin 86 for swinging movements toward and from the jaw 58 is an outer jaw 88 connected by a link '18 to a piston I2 which is moved downwardly by operating fluid admitted to a chamber M (Fig. 9) in the cylinder 62 to cause the jaws to grip the upper. The fluid is thus admitted to the chambers "id of the two cylinders 52 through flexible tubes I8 communicating with a pipe line I8 (Fig. 1) which leads from the source of fluid supply. As more fully disclosed in the previously mentioned Letters Patent, the swinging of the jaw 88 of each gripper to grip the upper is efiected against the resistance of two return springs 88, only one of which is herein shown, these springs being mounted in a block 82 fast on the upper end of the cylinder 62 and acting on the forked upper end of a rod 84 the lower end of which is pivotally connected to an arm 86 integral with the jaw 88.

The pulling of the upper by each gripper is e by moving the gripper and the cylinder lei itwise oi the last. For this purpose the is provided with a second fluid-receiving chamber (Fig. separated from the previously mentioned chamber I4 by a partition 98 secured in the cylinder. Movable in the chamber 88 is a piston 82 connected by a link 98 to one end of a lever 95 which is pivotally mounted substantially midway between its opposite ends on a pin 98 on the block 82. When the piston is moved upwardly by fluid admitted to the chamber 88 it acts through the lever 98 to impart upward movement to the gripper and the cylinder 82 by a purchase on the bottom of the shoe through a holddown I00. This holddown includes a bar I82 having pivotally mounted on its lower end an insole-engaging presser foot I04. One end of the lever 96 extends into a recess or slot in the upper end of the bar I02 and is provided with a bearing for a pin I06 in the opposite ends of which are threaded two studs I88, only one of which is shown (Fig. 5), these studs being guided for downward and upward movements in slots H0 in the bar. Threaded in the pin I86 is also a screw II2 which extends through slots in the end of the lever 96 and bears at its lower end on a crossbar H4 in engagement with the upper ends of two springs H6 (see Fig. 6) in the bar I82. Accordingly the lever 98 acts yieldingly on the bar through these springs which are compressed more or less in response to resistance of the upper to the force of the pull applied thereto by the gripper.

In order properly to time the movement of each piston 92 relatively to the movement of the jawclosing piston I2, the operating fluid is admitted to the chamber 88 from the chamber 74 when the piston I2 has substantially completed its movement to cause the gripper to grip the upper. For this purpose the partition 98 has a bore H8 (Fig. 10) extending through it, and movable in this bore is a valve member I20 secured to the piston 12. This valve member is in the form of a rod which flts in the bore H8 and has in one side thereof near its upper end a slot I22. When the piston I2, therefore, has nearly completed its downward movement the slot I22 permits the fluid to flow from the chamber I4 to the chamber 88 to operate the piston 92. When the fluid is released from the chamber I4 after the pulling of the upper to cause the gripper to release the upper, the fluid in the chamber 88 returns to the chamber I4 through a passage in the partition 9D controlled by a check valve I24 and then passes from the chamber I4 through the flexible tube I6.

For purposes of this invention the construction herein shown is such that supports identified generally by the reference characters I26 (Figs. 1 and 2) and hereinafter described are directly and positively connected to the holddowns I89 instead of to the cylinders 82 as in the construction shown in the previously mentioned Letters Patent, these cylinders and the grippers thereon being supported directly by the holddowns through the above-described fluid-operated mechanisms which operate the grippers. Each holddown bar I82 has welded thereon near its upper end a block I28 (Fig. 6) pivotally mounted on two studs I 38 which are supported on the inner ends of a pair of substantially horizontal bars I32. The holddown bar I82 is thus permitted to swing about the studs I-38 in directions widthwise of the shoe, but its swinging movement in a direction outwardly over the shoe bottom is limited by engagement of shoulders I84 on the block I28 with the end faces of the bars I82, only one of these shoulders being visible in the drawings. Near their outer ends the bars I32 are seated in slots I38 (Fig. 4) formed in the opposite sides of a block I38 mounted as hereinafter described and are secured to this block. by screws I40 extending through slots I42 in the bars. It will thus be seen that by reason of the spe -4c? screws I40 and slots I42 each holddown and'the gripper associated therewith may be adjusted as a unit in directions widthwise of the shoe by adjusting the corresponding bars I32 relatively to the block I30 on which the bars are mounted. Associated with each holddown are two springs HM connected to a pin I46 in the holddown oar I02 and to the bars I32, these springs tendin to swing the holddowns in outward directions about the studs [30 and holding them initially in the positions determined by engagement of the shoulders I34 with the ends of the bars I32. Also connected to the pin I46 and to the pin 88 in the block 82 on the cylinder 62 are two springs I48 which by their action on the holddown assist the force of gravity in moving the cylinder and the gripper downwardly when the fluid is released from the chamber 88. the downward movement of the cylinder being limited by the engagement of the piston 92 with the partition 90. When the piston is thus in engagement with the partition the springs and the force of gravity tend to swing the cylinder 62 and the lever 96 as a unit about the pin I06 on which the lever is mounted, and accordingly the inner jaw 58 of the gripper is held against the. outer face of the lower end portion of the holddown bar I02.

Each block I38, which may be regarded as a part of one of the previously mentioned holddown supports I26, is pivotally mounted on a substantially vertical stud I50 which is threaded in a slide I52 movable in directions widthwise of the shoe along a guideway on a bar I54 secured by two screws I56 to an arm I58 (Figs. 1 and 2) extending lengthwise of the. shoe. Threaded in the slide I52 is a rOd'IGO which is mounted to turn in a bearing formed in an upwardly extending portion of the bar I54 and has on its outer end a knob I62 for turning it. Cooperating with the knob to prevent lengthwise movement of the rod is a nut I64 which is threaded on the rod and engages the upwardly extending portion of the bar I54. It will thus be seen that by turning the rod I60 the holddown I and the gripper-supporting cylinder 62 associated therewith may be quickly adjusted bodily in directions widthwise of the shoe, the previously mentioned adjustment provided for by the screws I40 and the slots. I42 being in the nature of a, setting-up adjustment.

Secured to the block I3& is. an arm I66 whereby the cylinder and the holddown may be further adjusted as a unit about the stud I50, the arm having thereon a. knob I6& for swinging it. Extending downwardly fromthe knob is a pin I'II'l arranged to enter any one of a plurality of holes formed in a plate I12 which is mounted on the:

stud I between the block I88 and the underlying slide I52, the arm I66 being flexible to permit the pin to be withdrawn from any one of the holes for adjusting purposes. In the construction herein shown the plate I12 is not fixed on the slide I52 but is, provided at its inner end with downwardly extending lugs I'M (Figs. 4 and 5) engaged byspring-pressed plungers I16 mounted in the slide I 52 at, the opposite sides of the axis of the stud I50 respectively. The springpressed plungers I16, therefore, normally centralize the block I38, together with the gripper-supportin cylinder and the holddown, with respect to movement about; the stud I50 in any position of adjustment of the block: by the arm I66, but permit yielding movement thereof about the stud under conditions hereinafter described.

The above-mentioned arm I58 of each holddown support I26, as: in the. construction shown in the previously mentioned Letters Patent, is adjustably secured to a rearwardly extending bar I18 beneath it, and this bar is secured at its rear end to another bar I which is mounted on the upper arm of a substantially U-shaped member I82, the lower arm of this member being mounted on the previously mentioned rockshaft 22 to swing about the shaft. The weight of the gripper-supporting cylinder 82 and of other parts tend to swing the U-shaped member I82 in a counterclockwise direction with reference to Fig. 1 about the shaft 22, such movement thereof being limited by a screw I84 which is threaded therein and is arranged to engage the rear edge face of the. plate 6. This screw, therefore, determines adjustably the initial height of the holddown I00 and of the gripper 56 supported by the holddown. The arm IE8 is secured to the bar I18 by a screw I86 which extends through a slot I88 (Fig. 2) in the arm and is threaded in the bar, this construction permitting the gripper and holddown to be adjusted bodily in directions lengthwise of the shoe. Cooperating with the screw 86 to position the arm I58 angularly is a pin I98 extending from the bar I18 into the slot I88. The bar I20 is pivotally mounted at its rear end on a stud I92 threaded in the upper armof the U-shaped member I32 to permit the gripper and the holddown to be swung in d'nections widthwise of the shoe for purposes hereinafter described. The swinging movements of the bar are limited by a stud I52 (Fig. 2) extending upwardly from the U-shaped member into a slot I96 in the bar, the bar being provided with a screw I98 arranged to engage the stud to limit adjustably its swinging movement in an outward direction.

In the construction herein shown the grippersupporting cylinders 62 are normally positioned at such a height relatively to the holddowns I50 associated therewith, by the connections hereinbefore described between the cylinders and the holddowns, that the lower end faces of the inner jaws 58 of the grippers are at substantially the same level as the lower faces of the holddown presser feet I04. To facilitate the presentation of the shoe to the machine with the margin of the upper properly positioned between the jaws of the grippers, the grippers and the holddowns are so positioned initially that the inner jaws of the rippers are located substantial distances inwardly from the edge of the insole, the screws I84, moreover, being so adjusted that the holddowns and the inner jaws of the grippers will engage the insole when the shoe is presented, as illustrated in Fig. 5. Before they grip the upper the grippers, together with the holddowns are moved in outward directions over the insole to positions such that their inner jaws are preferably just beyond the edge of the insole as illustrated in Fig. 8', thus insuring that the margin of the upper will be spread from over the insole and that if it has adhered prematurely to the edge of the insole by reason of the presence of cement previously applied it will be detached from the insole. To control the. grippers with respect to movements widthwise. of the shoe, there is provided, as in the earlier machine, a cylinder 200 (Figs. 2 and 3') and a piston 2&2 in the cylinder. the cylinder being secured by two screws 284 to a bar 206 one end of which is. confined on a stud 20% extending upwardly from the two bars H8 and I80 of the right-hand holddown support I26. Mounted in the left-hand end of the cylinder 280 is a block 211i through which a piston rod 2I'2 extends outwardly from the piston 202, the outer end of this piston rod being secured to a bar 2 I4 connected to a stud 2 I6 extending upwardly from the bars I18 and I80 of the left-hand holddown support I26. The block 2H) is confined in the cylinder 20!! by a projection 2I8 extending from the bar 206 through the cylinder into an opening in the block, and the block serves as an abutment for one end of a spring 220 located between it and the piston 282. The spring, therefore, acts on both the cylinder and the piston with a tendency to swing the grippers and the holddowns in inward directions about the studs I32, their inward movements being limited by engagement of the studs I94 with the bars I89. To impart to the grippers and holddowns their outward movements to the positions illustrated in Fig. 8, operating fluid is admitted to the cylinder 2% through a flexible tube 222 communicating with a pipe line 223 leading from the source of fluid supply.

can more readily present the shoe with the margin of the upper materials properly positioned between the jaws of the grippers if the shoe is free to be shifted laterally at that time. Accordingly, members 224, which in the machine shown in the previously mentioned Letters Patent served to position the shoe laterally by engagement with its opposite sides, although retained in the present machine for a purpose hereinafter explained, no longer serve to position the shoe but are spaced far enough apart to permit the shoe to be shifted laterally between them. The above-described outward movements of the grippers over the insole are, moreover, depended upon to position the shoe laterally by engagement of the inner jaws of the grippers with the upstanding margin of the upper. To facilitate such positioning of the shoe by the gripper-s, the grippers and the holddowns are preferably so positioned initially by adjustment of the screws I84 (Fig. 2) that when the shoe is presented the insole will not engage the presser feet I5 of the sole rest I 4 which at that time are spaced a short distance above it, as shown in Fig. 5. A further advantage of this arrangement is that regardless of the lateral curvature of the bottom of the last the inner jaws of the grippers will remain substantially in engagement with the insole during their outward movements over the insole and the holddowns at the end of these movements will press the margin of the insole on the bottom of the last. To render the grippers effective thus to position the shoe laterally, the toe rest 24, which in the machine shown in the earlier Letters Patent was moved upwardly to clamp the shoe against the sole rest simultaneously with the outward movements of the grippers over the insole, is not moved upwardly until after these movements of the grippers, as more fully hereinafter explained. When the toe rest is thus moved upwardly it forces the shoe upwardly against the presser feet insole by means constructed as disclosed in the previously mentioned Letters Patent, including what may be termed main wipers 226 and additional or auxiliary wipers 228. The main wipers are resiliently flexible and are secured near their outer edges to forwardly extending arms 230 of bell-crank levers 232 pivotally mounted on studs 234 on the top plate 6 to swing about axes extending heightwise of the shoe. lhe two bellcrank levers have other arms 23% extending widthwise of the shoe in crossed relation to each other and connected by links 238 to upwardly extending arms 243 of other bell-crank levers 242 mounted on a rod 244 to swing about an axis extending widthwise of the shoe, this rod being supported on an arm 245 on the frame. Forwardly extending arms 248 of the bell-crank levers 242 are connected by links 25!] 'to a rod which extends through vertical slots 254 in the sides of a cylinder and through a piston 258 in the cylinder. In response to upward movement of this piston, therefore, the wiper-carrying arms 234 are swung inwardly to operate the wipers 226, the inward movements of the arms being limited by means not herein shown but disclosed in the previously mentioned Letters Patent. The piston is operated by fluid admitted to the lower end of the cylinder 255 through a pipe line 26!] leading from the source of fluid supply. When the fluid is released from the cylinder the piston and the wipers are returned to their initial positions by springs 262 connected to the arms 248.

When a shoe is pressed upwardly against the sole rest 84 by the toe rest '24, movement of the lever H2 in response to pressure of the shoe on the sole rest is prevented by an arm 234 (Fig. 1) mounted to swing about the rod 244 and provided with a roll 2% which underlies the rear end of the lever. A spring 268 connected to the arm holds it normally in a position determined by engagement of the roll with a lug 218 on the lever. When the wipers 225 have substantially or nearly completed their inward wiping movements the arm 254 is swung rearwardly to release the lever i 2 and thus to permit the shoe to be pressed more forcibly up against the wipers by the toe rest. To effect such swinging movement of the arm 264 the upwardly extending arms 246 of the bellcrank levers 242 carry a yoke member 212 (Fig. 2) provided with a screw 214 arranged to engage the arm 264. The wipers 226 are secured to the arms 2253 at such distances from their wiping edges that the upper-engaging portions of the wipers are free to be flexed by the increased upward pres- ,2 sure of the shoe against them when the lever I2 is released as above described, so that the wipers will conform to the more or less convex curvature of the bottom of the portions of the shoe on which they operate. To limit the flexing of the shoeengaging portions of the wipers as a whole and to cause them to conform more effectively to the lengthwise curvature of the shoe bottom, the arms 2% carry screws 216 and 21B arranged to engage the top faces of the wipers at their front and rear ends respectively. The wipers are maintained in a heated condition by electrical heating units 230 mounted in blocks 282 secured to the lower faces of the wipers in locations at substantial distance-s from their wiping edges. In order to shield the sides of the shoe from the heat of the heating units the members 224 are retained in the machine herein shown, as hereinbefore explained.

As further more fully disclosed in the previously mentioned Letters Patent, the auxiliary wipers 228, which are also flexible, are moved inwardly between the main wipers 226 and the upper with substantial components of movement lengthwise of the shoe toward its toe end in locations where the edge of the shoe bottom curves inward heelwardly of the ball line. The wipers 228 are secured on forwardly extending arms 286 of levers 286 mounted to swing about the axes of vertical pins 288 (see Fig. l) to which they are secured and which arerotatable in bearings formed in brackets 290 on the frame. Swinging movements are imparted to the levers 286 to operate the wipers 228 by the movements of the arms 236' which carry the main wipers 226. For this purpose the arms 23!) are connected to the forwardly extending arms 284 of the levers 286 by means including links 292 pivotally connected at their inner ends to the arms 230 and slidingly movable in blocks 294 pivoted on the arms 284. Between these blocks and nuts 296 on the outer ends of the links are springs 298 which are yieldable to permit further inward movements of the arms 236 after movements of the levers 286 have been stopped as hereinafter described. The wipers 228 are heated by their contact with the wipers 226. The arrangement of the links 292 in relation to the arms 230 and 284 is such that the wipers 228 are moved inward more rapidly than the wipers 226 and begin earlier than the latter to press on the upper. The inward movement of each wiper 228 after release of the upper by the grippers is limited by a nut 30!] which is threaded on a rod 302 extending outwardly from the bracket 290 and is engaged by the forked rear end of a rearwardly extending arm 364 of the lever 286. The wipers 228 are forced inwardly against the upper while the grippers are still holding the upper under tension, after which the springs 22% yield until the Wipers 226 arrive in positions to act on the upper as illustrated in Figs. 11 and 13. At this point the grippers release the upper, whereupon the wipers 228 are forced farther inwardly by the springs 298 to the limits determined by the nuts 396 as the wipers 226 continue their inward movements.

When the grippers release the upper it is desirabie that the holddowns I be withdrawn as promptly as possible from engagement with the insole, even though they are so mounted that they may be moved inwardly over the insole about their pivotal connections I with the bars E32 by the pressure of the margin of the upper against them as the upper is wiped inwardly by the wipers, in order to avoid any danger of displacement of the margin of the insole if; the bottom of the last has a pronounced lateral curvature. Arranged to act, therefore, on each holddown support I26 is a bell-crank lever 306 (Figs. 2 and 3) pivotally supported on the bracket 290,. One arm of the bell-crank lever underlies and engages the plate I I8 of the holddown support, and its other arm is connected by a spring 3"} to the corresponding wiper-carrying arm 230. The wiper-operating movements of the arms 230, therefore, tension the springs 3H), and as soon as the grippers release the upper these springs are effective to swing the holddown supports I 26 upwardly about the shaft 22. Since the holddowns in the construction herein shown are positively connected to the supports I26, as hereinbefore explained, prompt withdrawal of the holddowns from the insole is insured, the compressed springs I I6 in the holddowns being ineifective to retard such withdrawal. Insurance that the grippers will be held high enough to avoid interference with the wipore is afiordedboth by such upward movements of the holddow'n supports and by the lag in't'h downward movements of the gripper-supporting cylinders 62 as the fluid is being forced out of the chambers 88 in which the pistons 92 are mounted. Movements of the bell-crank levers 366 by the springs 3 I ll are limited by engagement of pins 3I'2 (Fig. 1) on the levers with the brackets 29!). It will be understood that when the wiper-carrying arms 23!] are returned to their starting positions the holddown supports I26 are swung downwardly by gravity to their initial positions.

The auxiliary wipers 228, as hereinbefore ex-. plained, have substantial components of movement lengthwise of the shoe toward its toe end and, through the springs 298, are pressed against the upper in those directions in locations adja. cent to the holddowns I00 before the grippers release the upper, as illustrated in Fig. 13. In order that pressure of the portions of the upper engaged by these wipers against the holddownsupon release of the upper by the grippers will not retard the upward movements of the holddowns away from the insole by the action of the springs M6, the holddowns are yieldingly controlled with respect, to turning movements about the studs I56 by the spring-pressed plungers I16 (Fig. 4) in the manner hereinbefore described. That is, the holddowns are yieldingly movable lengthwise of the shoe toward its toe end about the studs I58 in response to such pressure as may be applied thereto by the auxiliary wipers 228 immediately upon release of the upper by the grippers, so that there is no such binding action onthe holddowns as to retard their withdrawal from the insole by the springs 3" The means for developing fluid pressure for operating mechanisms hereinbefore described and for controlling the flow of operating fluid to and from these mechanisms may, except as hereinafter noted, be assumed to be of the same construction as disclosed in the previously mentioned Letters Patent, and accordingly the construction of this portion of the machine is not herein shown in detail. They nature of the fluidpressure: system is, however, illustrated diagrammatically in Fig. 14 and will be briefly described. During the operation of the machine the operating fluid is maintained under pressure in a manifold 3| 4' by a pump 3I6 driven continuously by an electric motor M8, the pump receiving fluid through a pipe 320 from a reservoir or sump 322 and delivering the fluid to the manifold through a pipe line 324'. The maximum pressure of the fluid in the manifold is determined by a springcontrolled relief valve'326 past which any excess fluid is returned to the sump through a pipe 328. When the machine is not in operation the fluid is permitted to return from the manifold 3M to the sump 322' by an open valve 330 Without developing any substantial pressure in the manifold. In response to depression of a treadle (not shown) the valve 330 is closed to cause the development of such fluid pressure and simultaneously a valve 332' is operated to admit fluid from the manifold tothe pipe line 223 communicating with the cylinder 200 to cause the grippers and the holddowns to be moved outwardly over the insole in the manner described. It will be noted that in the construction herein shown the pipe line 223' is not in communication with thecyli'nder 30, and accordingly the toe rest 24 is not at this time moved upwardly to clamp the shoe against the sole rest I4. By another depression of the treadle a valve 334 is thereafter operated to admit fluid from the manifold toa cylinder 33'6 for operating a piston 33B whereby rotary movement is imparted to a controlling drum 349 which determines a cycle of operations of the machine. By mechanisms controlled by this drum valves 342, 344 and 346 are operated in the proper order to admit fluid respectively to the cylinder 39 for operating the toe rest, the cylinders 62 for closing and operating the grippers and the cylinder 255 for operating the wipers and other parts as described and for thereafter releasing the fluid from these cylinders at the proper times in the cycle of operations. Mechanisms controlled by the drum also cause the valve 332 to release the fluid from the cylinder 2% at the proper time and the valves 334 and 339 finally to return to their starting positions to stop the rotation of the drum and to release the fluid from the manifold M4 at the end of the cycle of operations.

The manner of operation of the machine will now be briefly summarized. The operator presents the shoe to be operated upon with the bottom face of the insole at the ball portion of the shoe in engagement with the presser feet 194 of the holddowns I99 and with the inner jaws 5B of the grippers 56, as illustrated in Fig. 5, the holddowns and grippers being so positioned that the bottom of the ball portion of the shoe is at this time spaced somewhat below the presser feet 15 of the sole rest 14. The toe end of the insole may or may not engage the sole rest. In order to position the more or less inwardly inclined marginal portion of the upper materials properly between the jaws of the grippers the operator may, in thus presenting the shoe, shift it laterally first in one direction and then in the other direction, the members 224 being far enough apart to permit this to be done. The operator then depresses the treadle (not shown) and thereby moves the valve 339 (Fig. 14) to close the outlet from the manifold 3'14 and the valve 332 to admit fluid under pressure from the manifold to the cylinder 209. This causes the grippers and the holddowns to be moved outwardly over the insole from the positions in which they are shown in Fig. 5 to the positions illustrated in Fig. 8, the inner jaws of the grippers spreading the margin of the upper outwardly and detaching it from the edge of the insole if it has adhered prematurely thereto. By such engagement with the margin of the upper the inner jaws of the grippers serve also to posi- 5,

tion the shoe laterally, the outward movements of the grippers and the holddowns being limited by engagement of the screws !98 with the studs I94 (Fig. 2). It will be understood that as the holddowns and the grippers are thus moved outwardly the operator continues to hold the shoe pressed upwardly against them and that they maintain eifective contact with the shoe, regardless of the lateral curvature of the last bottom,

since the ball portion of the shoe is at that timeout of contact with the sole rest [4. In the same manner as explained in the previously mentioned Letters Patent the operator may, if desired, cause the grippers and the holddowns to return and again to move outwardly if this should be necessary in order for the margin of the upper materials to be properly positioned between the jaws of the grippers.

After the shoe has been presented and positioned as above described,the operator, by again depressing the treadle, moves the valve 334 to admit fluid to the cylinder 336 and thereby starts the cycle oi operations of the machine. Substantially at the beginning of the turning movement of the drum 349 the valve 342 is operated to admit fluid to the cylinder 39, whereupon the toe rest 24 is moved upwardly to clamp the shoe against the sole rest l4, the upward movement of the ball portion of the shoe into engagement with the sole rest serving to move the holddowns and the grippers upwardly. Fluid is next admitted by the valve 344 to the cylinders 62, the fluid first acting on the pistons 12 to close the grippers on the upper (Fig. 9) and then on the pistons 92 to impart upper-pulling movements to the grippers (Fig. 10). In the upper-pulling operation the cylinders 62 are moved upward relatively to the holddown support I26 by the action of the pistons 92 on the levers 96, the levers being iulcrurned on the holddowns I69 and acting thus on the cylinders by a purchase on the bottom of the shoe through the holddowns. In response to resistance of the upper to the force of the pull applied thereto by the grippers the springs H6 in the holddowns are more or less compressed.

When the pull of the grippers on the upper has been substantially completed the valve 349 is operated to admit fluid to the cylinder 256 for operating the wipers 226 and 228. As the wipercarrying arms 239 and 284 are swung inwardly the wipers 228 first engage the tensioned upper and are forced yieldingly against it through the springs 298 until the wipers 226 arrive in positions where they begin to act on the upper (Figs. 11 and 13) When the wipers 226 are thus in positions to force the upper against the edge of the insole the fluid is released from the cylinders 62 by the valve 344 to cause the grippers to open and release the upper and to permit return movements of the pistons 92. Immediately upon such release of the upper by the grippers the bell-crank levers 306 are operated by the tensioned springs 3"] to impart upward winging movements to the holddown supports i26 to which the holddowns are positively connected independently of the gripper-operating mechanisms as described. Regardless, therefore, of the fact that provision is afforded for inward swinging movements of the holddowns over the insole about their pivotal connections I39 with the bars [32 against resistance of the springs 44 in re-- sponse to pressure of the upper against them, prompt withdrawal of the holddowns from engagement with the insole is insured, thus guarding against any objectionable displacement of the margin of the insole by the holddowns in case the bottom of the last has a pronounced lateral curvature. It will be evident that in view of the positive connections between the holddowns and the supports I26, such prompt withdrawal of the holddowns is not retarded by the expansion of the holddown springs I I6 the efiect of which is to assist in imparting return movements to the pistons 92. In view, moreover, of the provision for yielding movements of the holddowns in rearward directions about the studs use, such pressure as may be exerted against their front edges by the wipers 228 when the grippers release the upper has no substantial retarding effect on their movements away from the insole. Any objectionable interference between the wipers 226 and the grippers is avoided by reason of the upward movements of the holddown supports I26 and the lag in the downward return movemerits of the cylinders 62 as the fluid is forced out of the cylinders, the downward movements of the cylinders being limited by the holddowns. When the wipers have substantially completed their wiping movements the lever I2 is released 7 by the arm 264 to permit the shoe to be forced.

QAQQAML'? farther upward by the spring M controlling the toe rest, the wipers being flexed by the pressure of the shoe against them to conform better to. thecontour of the shoe bottom. The parts are then in positions such as illustrated in Fig. 12. As the cycle of operations continues, the valves 332, 342 and 346 are operated in the proper order to cause return of the parts to. starting positions, the valves 334 and 330 being also operated to terminate the cycle and to release the pressure from the manifold 3M.

It is to be understood that in some of its novel aspects the invention is not limited to grippers which act on the upper at the opposite sides of the ball portion of a shoe or to a machine having a plurality of such grippers. I

Having described the invention, what I claim as new and desire to secure by Letters Patent. of the United States is:

1. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last at the opposite sides of the last respectively, holddowns associated respectively with said different grippers for engaging an insole on the last, gripper-operating mechanisms. for moving the grippers heightwise of the last to. pull the upper each by a purchase independently of the other on the bottom of the shoe through the holddown associated therewith, overlaying means movable to lay the margin of the upper inwardly over the insole at the opposite sides of the last upon release of the upper by the grippers, and means arranged to act on the holddowns inde-. pendently of said gripper-operating mechanisms for automatically moving the holddowns. height: wise of the last away from the insole immediately upon such release of the upper.

2. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last at the opposite sides of the last respectively-,3

holddowns associated respectively with said djf': ferent grippers for engaging an insole on the last, gripper-operating mechanisms for movin the grippers heightwise of the last to pull the upper each by a purchase independently of the other on the bottom of the shoe through the holddow-n as.-. sociated therewith overlaying means movable to lay the margin of the upper inwardly over the. in! sole at the opposite sides of the last upon release of the upper by the grippers, holddown supports positively connected to the holddowns indep.end ently of said gripper-operating mechanisms, and means arranged to act on said holddown supports to move the holddowns automaticallyheightwise of the last away from the insole immediately upon I grippers for gripping the margin of an upper on a.-

last at the opposite sides of the last respectively, holddowns associated respectively with said .dife ferent grippers for engaging an insole on the last, gripper-operating mechanisms for moving the. grippers heightwise of the last to pull the upper each by a purchase independently of the other on the bottom of the shoe through the holddown associated therewith, overlaying means movable to lay the margin of the upper inwardly over the insole at the opposite sides of the last uponrelease of the upper by the grippers, holddownsupports connected respectively to the different hol ddowns independently of said gripper-operating mechanisms and each mounted for swinging movement heightwise of the last about an axis extending widthwise of the last, and spring means for thus swinging said holddo-wn supports to move the holddowns automatically heightwise of the last away from the insole immediately upon the release of the upper by the grippers.

4. In a machine for shaping uppers over lasts, grippers. for gripping the margin of an on alast at the opposite sides of the last respectively, holddowns associated respectively with said dif: ferent grippers for engaging an insole on the last, fiuideoperated mechanisms for moving the grippers. heightwise of the last to pull the upper each by a purchase independently of the other on the bottom of the shoe through the holddow-n associated therewith, overlaying means movable to lay the margin of the upper inwardly over the insole at the opposite sides of thelast upon release of the upper by the grippers, and means arranged to act on the holddowns independently of said fluid-operated mechanisms to move the hold. downs. automatically heightwise ofthe last away from the insole immediately upon such release of the. upper.

5. In a. machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last at the opposite sides of the last respectively, holddowns. associated respectively with said different. grippers for engaging an insole on the last, fluid-operated mechanisms initially supported directly by said holddowns. for moving the grip pers. heightwise of the last to. pull the upper each by a purchase on the bottom of the shoe through the hold'down associated therewith, overlaying means movable to lay the margin of the upper inwardly over the insole at the opposite sides of the last upon release of the upper by the grippers, supports for said holddowns connected to them independently of said fluid-operated mechanisms, and means for automatically moving the holddowns heightwise of the last away from the insole by engagement with said hol-ddown supports immediately upon the release of the upper by the grippers.

6. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last at the opposite sides of the last respectively, holddowns associated respectively with said difierent grippers for engaging an insole on the last, fluid-operated mechanisms for moving the grippers heightwise of the last to pull the upper each bya purchase on the bottom of the shoe through the holddown associated therewith, holddown supports on which said holddowns are pivotally mounted for movements to carry their insole-engaging portions bodily widthw-ise of the last and relatively to which the grippers are movableheightwise of' the last in pulling the upper, over laying means movable to lay the margin of the upper inwardly over the insole at the oppoe site sides of the last upon release of the. uppers by the grippers, and means for automatically moving the holddowns heightwise of the last away from the insole by engagement with said hold down supports immediately upon such release of the upper.

7. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last at the opposite sides of the last respectively, holddowns associated respectively with said dirt! ferent grippers for engaging an insole on the last, holddown supports mounted for swinging movements independently of each other heightwise or" the last each about an axis extending widthwise of the last and positively connected to the holddowns, fluid-operated mechanisms for moving the grippers. heightwise of the last relatively to said holddown supports to pull the upper each by a purchase. independentl of the other on the bot tom of the shoe through the holddown associated therewith, overlaying means movable to lay the margin of the upper inwardly over the insole at the opposite sides of the last upon release of the upper by the grippers, and means for swinging the holddown supports about their a s to "eve the hold'downs heightwise of the last away cm the insole immediately upon such release of the upper.

8. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last at the opposite sides of the last respectively, holddowns associated respectively with said different grippers for engaging an insole on the last, holddown supports positively connected to said holddowns for moving them heightwise of the last, fluid-operated mechanisms for moving the grippers heightwise of the last relatively to said holddown supports to pull the upper each by a yielding purchase directly on the holddown associated therewith, overlaying means movable to lay the margin of the upper inwardly over the insole at the opposite sides of the last upon release of the upper by the grippers, and means arranged to act on said holddown supports to move the holddowns heightwise of the last away from. the insole immediately upon such release of the upper,

9. In a machine for shaping uppers over lasts, i?

grippers for gripping the margin of an upper on a last at the opposite sides of the last respectively, members associated respectively with said different grippers for engaging an insole on the last, fluid-operated mechanisms for moving the grippers heightwise of the last to pull the upper each by a purchase on the bottom of the shoe through the member associated therewith, springs arranged to transmit the forces of said fluidoperatecl mechanisms to said members and yieldable in response to resistance of the upper to the force of the pull applied thereto, overlaying means movable to lay the margin of the upper inwardly over the insole at the opposite sides of the last upon release of the upper by the grippers,

and means arranged to act on said members independently of said springs to move said members heightwize of the last away from the insole immediately upon such release of the upper regardless of the resilience of said spring.

10. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last at the opposite sides of the last respectively, members associated respectively with said difierent grippers for engaging an insole on the last, fluid-operated mechanisms for moving the grippers heightwise of the last to pull the upper each by a purchase on the bottom of the shoe through the member associated therewith, springs arranged to transmit the forces of said fluidcperated mechanisms to said members and yieldable in response to resistance of the upper to the 1' orce of the pull applied thereto, overlaying means movable to lay the margin of the upper inwardly over the insole at the opposite sides of the last upon release of the upper by the grippers, supports for said members positively connected to them, and means for moving the members heightof the last away from the insole by engagement with said supports immediately upon the release of the upper by the grippers regardless of the resilience of said springs.

11. In a machine for shaping uppers over lasts, a gripper for gripping the margin of an upper on a last, a holddown associated with said gripper for engaging an insole on a last, fluid-operated mechanism comprising acylinder supporting the gripper and a piston in the cylinder for moving the gripper heightwise of the last to pull the upper by a purchase on the bottom of the shoe through the holddown, and means arranged to act on the holddown independently of said fluid-operated mechanism to move the holddown heightwise of the last away from the insole upon release of the upper by the gripper.

12. In a machine for shaping uppers over lasts, a gripper for gripping the margin of an upper on a last, a holddown associated with said gripper for engaging an insole on a last, fluid-operated mechanism comprising a cylinder supporting the gripper and a piston in the cylinder for moving the gripper heightwise of the last to pull the upper by a purchase on the bottom of the shoe through the holddown, a support for the holddown pozitively connected to it independently of said fluid-operated mechanism, and means for moving the holddown heightwise of the last away from the insole by engagement with said support upon release of the upper by the gripper.

13. In a machine for shaping uppers over lasts, a gripper for gripper the margin of an upper on a last, a holddown associated with said gripper for engaging an insole on the last, fluid-operated mechanism comprising members relatively movable by the pressure of fluid between them and initially supported by the holddown for moving the gripper heightwise of the last to pull the upper by a purchase on the bottom of the shoe through the holddown, and means arranged to act on the holddown independently of said fluidoperated mechanism to move the holddown heightwise of the last away from the insole upon release of the upper by the gripper.

it. In a machine for shaping uppers over lasts, a gripper for gripping the margin of an upper on a last, a holddown associated with said gripper for engaging an insole on the last, fluid-operated mechanism for moving the gripper heightwise of the last to pull the upper by a yielding purchase on the holddown, and means arranged to act on the holddown independently of said. fluidoperated mechanism for moving the holddown heightwise of the last away from the insole upon release of the upper by the gripper.

15. In a machine for shaping uppers over lasts, a gripper for gripping the margin of an upper on a last, a member associated with said gripper for engaging an insole on the last, fluid-operated mechanism for moving the gripper heightwise of the last to pull the upper by a purchase on the bottom of the shoe through said member, a spring arranged to transmit the force of said fluidoperated mechanism to said member and yieldable in response to resistance of the upper to the force of the pull applied thereto, and means arranged -to act on said member independently or" said fluid-operated mechanism to move the member heightwise of the last away from the insole immediately upon release of the upper by the gripper regardless of the resilience of said spring.

3.6. In a machine for shaping uppers over lasts, a gripper for gripping the margin of an upper n a last, a holddown associated with said gripper or engaging an insole on the last, a support for said holddown, and fluid-operated means comprising members relatively movable by the pressure or fluid between them and supported initially by the holddown for supportin the gripper and for moving it heightwise of the last to pull the '19 a upper by a purchase on the bottom of the shoe through the holddown.

1'7. In a machine for shaping uppers over lasts, a gripper for gripping the margin of an upper on a last, a holddown associated with said gripper for engaging an insole on the last, a support for said holddown, a cylinder on which the gripper is mounted, a fluid-operated piston in said cylinder, and means including a lever connectin said cylinder and piston to the holddown for supporting the gripper initially by the holddown and for moving the cylinder heightwise of the last to cause the gripper to pull the upper by a purchase on the bottom of the shoe through the holddown.

18. In a machine for shaping uppers over lasts, grippers for gripping the margin o; an upper on a last and for pulling the upper at the opposite sides of the last respectively in locations between portions of the margin of the upper previously secured to an insole on the last, and means for movin said grippers outwardly widthwise of the last after the shoe has been presented to the machine to position the shoe laterally by engagement of the grippers with the margin of the upper before they grip the upper and while the shoe is free to shift laterally.

19. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last and for pulling the upper at the opposite sides of the last respectively in locations between portions of the margin of the upper previously secured to an insole on the last, said grippers each having an inner jaw for engaging the inner face of the margin of the upper and an outer jaw for engaging its outer face, and means for moving said grippers outwardly widthwise of the last after the shoe has been presented to the machine with their inner jaws only substantially in engagement with the bottom face of the insole to spread the margin of the up er from over the insole and to position the shoe laterally by engagement of the inner jaws with said margin prior to the grippin of'the upper and while the shoe is free to shift laterally.

20. In a machine for shaping uppers over lasts, grippers for gripping the marginof an upper on a last and for pulling the upper'at the opposite side of the last respectively in locations between portions of the margin of the upper previously secured to an insole on the last, means for moving said grippers outwardly'widthwise of the last after the shoe has been presented to the machine to position the shoe laterally byengagement of portions of the grippers with the margin of the upper before they rip the upper and while the shoe is free to shift laterally, and means for. clamping and holding the shoe in the position determined by the grippers after the outward movements of the grippers.

21. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last and for pulling the upper at the opposite sides of the last respectively in locations between portions of the margin of the upper previously secured to an insole on the last, means for moving said grippers outwardly widthwise of the last to position the shoe laterally by engagement of portions of the grippers with the margin of the upper before they grip the upper, a sole rest arranged to engage the insole and relatively to which the shoe may be shifted laterally by one or the other of the grippers when they are thus moved outwardly, and a member movable only after the shoe has thus been positioned by the 20 grippers to engage the shoe at the top of the iorepart and to press it against said sole rest.

22. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last and for pulling the upper at the opposite sides of the last respectively in locations between portions of the margin of the upper previously secured to an insole on the last, means for operating said grippers thus to grip and pull the upper in the course of a cycle of automatic operations of the machine, means for moving said grippers outwardly widthwise of the last to position the shoe laterally by engagement of the grippers with the margin of the upper after the shoe has been presented to the machine but prior to the beginning of the cycle of operations, and means movable only after the beginning of the cycle tohold the shoe in the position thus determined by the grippers.

23. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last and for pulling the upper at the opposite sides of the last respectively in locations between portions of the margin of the upper previously secured to an insole on the last, means for operating said grippers thus to grip and pull the upper in the course of a cycle of automatic operations of the machine, means for moving said grippers outwardly widthwise of the last to position the shoe laterally by engagement of the grippers with the margin of the upper prior to the beginning of the cycle of operations, a sole rest arranged to engage the insole and relatively to which the shoe may be shifted laterally by one or the other of the grippers when they are thus moved outwardly, and a member movable only after the beginning of the cycle to engage the shoe at the top of the forepart and to press it against said sole rest.

24. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last and for pulling the upper at the opposite sides of the last resectively, said grippers having inner and outer jaws arranged respectively to engage the inner and outer faces of the margin of the upper, means for moving the grippers outwardly widthwise of the last with their inner jaws in engagement with an insole on the last prior to the gripping of the upper, a sole rest having an insole-engaging portion located substantially between said grippers but out of contact with the insole when the grippers are thus moved outwardly, and means arranged to cooperate with said sole rest to clamp and hold the shoe only after the outward movements of the grippers.

25. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last and for pulling the upper at the opposite sides of the last respectively, said grippers having inner and outer jaws arranged respectively to engage the inner and outer faces of the margin of the upper, means for moving the grippers outwardly widthwise of the last with their inner jaws in engagement with an insole on the last prior to the gripping of the upper and while the shoe is held by the operator with the insole pressed against said inner jaws, a sole rest having an insole-engaging portion out of contact with the insole when the grippers are thus moved outwardly to permit contact of the insole with said inner jaws to be thus maintained, and means movable to clamp the shoe against said sole rest only after the outward movements of the grippers.

26. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last and for pulling the upper at the opposite sides of the last respectively, holddowns associated respectively with said different grippers for engaging the margin of an insole on the last in the upper-pulling operation, means for moving the grippers and holddowns as units outwardly widthwise of the last with the holddowns in engagement with the insole prior to the gripping of the upper by the grippers, a sole rest having an insole-engaging portion located substantially between said units but out of contact with the insole when the units are thus moved outwardly, and means arranged to cooperate with said sole rest to clamp and hold the shoe only after the outward movements of the units.

27. In a machine for shaping uppers over lasts, grippers f r gripping the margin of an upper on a last and for pulling the upper at the opposite sides of the last respectively, holddowns associated respectively with said different grippers for engaging the margin of an insole on the last in the upper-pulling operation, means for moving the grippers and holddowns as units outwardly widthwise of the last with the holddowns in engagement with the insole prior to the gripping of the upper by the grippers and while the shoe is held by the operator with the insole pressed against the holddowns, a sole rest having an insole-engaging portion out of contact with the insole when the units are thus moved outwardly to permit contact of the insole with the holddowns to be thus maintained, and means movable only after the outward movements of the units to clamp the shoe against said sole rest.

28. In machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last and for pulling the upper at the opposite sides of the ball portion of the last respectively, holddowns arranged to engage the margin of an insole on the last in locations adjacent to said grippers, wipers movable widthwise of the last to wipe the margin of the upper at the ball portion of the shoe inwardly over the insole upon release of the upper by the grippers, other wipers movable in difierent directions than said firstnamed wipers with components of movement lengthwise of the shOe toward its toe end to wipe the margin of the upper inwardly in locations where the edge of theshoe bottom curves inward heelwardly of the ball line, and means supporting said holddowns for inward movements widthwise of the shoe in response to pressure applied to the upper by said first-named wipers and also for movements in directions lengthwise of the shoe in response to pressure applied to the upper by said other wipers.

29. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last and for pulling the upper at the opposite sides of the ball portion of the last respectively, holddowns arranged to engage the margin of an insole on the last in locations adjacent to said grippers, wipers movable widthwise of the last to wipe the margin of the upper at the ball portion of the shoe inwardly over the insole upon release of the upper by the grippers, other wipers movable in different directions than said first-named wipers with components of movement lengthwise of the shoe toward its toe end to wipe the margin of the upper inwardly in locations Where the edge of the shoe bottom curves inward heelwardly of the ball line, and means supporting said holddowns for swinging movements inwardly widthwise of the shoe in response to pressure applied to the upper by said first-named wipers and also for bodily movements in directions lengthwise of the shoe about axes extending heightwise of the shoe in response to pressure applied to the upper by said other wipers.

30. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last and for pulling the upper at the opposite sides of the ball portion of the last repectively, holddowns arranged to engage the margin of an insole on the last in locations adjacent to said grippers, wipers movable widthwise of the last to wipe the margin of the upper at the ball portion of the shoe inwardly over the insole upon release of the upper by the grippers, other wipers movable in different directions than said first-named wipers with components of movement lengthwise of the shoe toward its toe end to wipe the margin of the upper inwardly in locations where the edge of the shoe bottom curves inward heelwardly of the ball line, bars arranged to extend widthwise of the shoe and on which said holddowns are pivotally mounted for swinging movements inwardly over the insole in response to pressure applied to the upper by said first-named wipers, and members supporting said bars and mounted for movements about axes extending heightwise of the shoe to permit movements of the holddowns in directions lengthwise of the shoe in response to pressure applied to the upper by said other wipers.

31. In a machine for shaping uppers over lasts, grippers for gripping the margin of an upper on a last and for pulling the upper at the opposite sides of the ball portion of the last respectively, holddowns arranged to engage the margin of an insole on the last in locations adjacent to said grippers, wipers movable widthwise of the last to wipe the margin of the upper at the ball portion of the shoe inwardly over the insole upon release of the upper by the grippers, other wipers movable in diiferent directions than said first-named wipers with components of movement lengthwise of the shoe toward its toe end to wipe the margin of the upper inwardly in locations where the edge of the shoe bottom curves inward heelwardly of the ball line, means supporting said holddowns for inward movements over the insole in response to pressure applied to the upper by said first-named wipers, additional means afi'ording provision for movements of the holddowns in directions lengthwise of the shoe in response to pressure applied to the upper by said other wipers, and spring means against the resistance of which the holddowns are thus movable inwardly and lengthwise of the shoe.

BERNHARDT JORGENSEN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 542,199 Lake July 2, 1895 1,475,972 Stiggins Dec. 4, 1923 2,423,454 Jorgensen July 8, 1947

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