US1392336A - Machine for shaping uppers over lasts - Google Patents

Description

Y B. JORGENSE-N.

MACHINE FOR SHAPING UPPERS vvER LASTS. APPLICATION FILED AUG.25, 1919- 1,392,336. Patented 00a 4, 1921. 3 SHEETS-SHEET I. I

a 0 Fig.1. (9

(Bi whit B. JORGENSEN. MACHINE FOR SHAPING UPPERS OVER LASTS.

APPLICATION FILED AUG-251 1919. 1,392,336.

2 0 a W 6 T w w 9 m m w v 3 I W Patented Oct. 4, 1921.

B. JORGENSEN.

MACHINE FOR SHAPING UPPERS OVER LASTS. APPLICATION FILED AUG.25, 1919.

1,392,336. Patented 001;. 4, 1921.

I I 3 SHEETS-SHEETS. 5 106 0 V 66 1018 r I 5+ 5 ing period ofrest.

[UNITED STATES PATENT oFFicE;-**

BERNHARDT Jonennsnn, or BEVERLY,

mAssAcrmsE'r-rs, ASSIGNOB r0 UNITED SHOE MACHINERY CORPORATION, or PATERSON, NEW JERSEY, A CORPORATION p for NEW JERSEY.

Specification of Letters Patent.

":MACHINE ron. SHAPING orums oviiit I iAs'rs.

Patented 0a. 4-, .1921.

Application filed August 25, 1919 Serial No. 319,617.".

o This invention relates to machines for shaping uppers over lasts, and has more particular reference to such machines as are equipped with mean for engaging the marginal edge of the sole of the shoe on the bottom of the last to position said edge in the correct relation to the last, the term sole being used herein for convenience as inelusive of the insole of a welt or other type of shoe as well as of the sole of. a turn shoe.

The invention is herein shown as incorporated in a machine of a well known commercial type having means for pulling the upper over the last and means forlasting the toe portion of the shoe," but it will be understood that the invention is not limited in utility to machines of this particular type nor to machines which include both pullingover and lasting means.

"A feature of the invention consists in novel means of control for sole edge positioning or hold-down mechanism. In aprior Patent No. 1,379,924, granted upon my application on May 31, 192-1, Ihave shown a novel construction of edge hold-down mechanism applied. to a power-operated machine so controlled as to make a single stop between the beginning and the end of its cycle 4 of operations, the upper being pulled in the first stage cfthe cycle and wipedinwardly over the bottom of the sole inthe second stage, and the hold-down members being withdrawn from "operative position early in the second stage of the cycle to make way for the advancing wipers which, as usual in machines of-the well-known type illustrated, were arranged to be positioned preliminarily in; engagement with the shoe 'in the interven- V In many machines of this general type, however, the overwiping operation is not effected in the second stage of the cycle, but in an additional third stage following a second period of rest in which the wipers are thus positioned manual y.

'Ihe present invention provides a construction adapted for use lIlIIllChlIlGS having a cycle of operations ofthis character, with means in such manner as to maintain it in effective engagement with the sole until after the wipers have been positioned manuallyinengagement with the shoe, thus insuring against displacementof the marginal edge of the sole by the pressure of'the wipers as they are adjusted in position to begin their subsequent overwiping operation.

the object. of controlling the hold-down In the construction shown the hold- I down members are maintained in operative position throughout the first two stages of the cycle and are withdrawn from operative position substantially at the time of the final starting of the machine.

In another aspect, a feature of the invention consists in a novel combination of holddown mechanism and manual means to cause it to be withdrawn from operative position.

For the objects hereinabove set forth,

among others, the construction shown comprises, mechanism to render the starting means for the machineeffective to cause the withdrawal of the hold-down members independentlly of the power operation of the machine.

the members as desired, the illustrative machine is provided with an automatic control to render the starting means effective to n order to time the withdrawal of cause such withdrawal only when said means 1 is operated to initiate the final stage of the cycle of the machine. V

, Still another feature ofthe invention consists in a novel construction'designed to permit a hold-down member to adjust itself in conformity to the work, the construction shown comprising a member for engaging the sole around its toe end and supporting means permitting the member tojtip adjustably in conformity to the lengthwise contour or inclination of the sole.

While the invention is herein shown as applied to a construction having characteristic features of the mechanism shown in said prior patent, it will be evident that the:

invention in its broader aspects. 18 not limited in utility to constructions of that particular character nor to machines which make any particular number of stops in the cycle. e I

The above and other features of the invention, including certain details of con.-

s'truction .and] combinations of parts, will t Figure 11s a view in side elevation of the.

head portion of a pulling-over and lasting machine in which .the invention is incor-' 'porated;

Fig. 2 is a transverse vertical section showing a portion of the hold-down mech- Y anlsm;

' Fig. 3 is a longitudinal verticalsection,

, with parts in side elevation, illustrating hold-down member and its more fully than Fig. 1 the relation of the hold-down members to theshoe; I V

Fig. 4 is a plan View of a portion of the means for effecting the release of theholddown members;

' Fig. 5 1s a wow of the same means'ln slde elevation, with parts in vertical section on the line 55 of F ig. 4, and showing a'portion of the treadle connections, and

Fig. 6 is a perspective view of thetoe-end supporting means. i

The machine herein shown, like the machine shown and described in aid prior patent, has the usual toe and side grippers, the toe gripper comprising jaws 2 mounted on a gripper casing 4 and operated by a bar 6 connected to an updraw lever 8, and the side grippers comprising jaws 10, casings 12 and bars 14 connected to updraw levers 16. Only one of the side grippers with its operating connections is shown in Fig. 3, but it will be understood that similar mechanism is pro- Vided for pulling the upperat the other side of the shoe. The levers 8 and 16 are op- Q erated to close the gripper jaws and pull the upper by means characteristic of this wellknown type of machine and not shown herein in detail; The shoe is positioned for the operation of the grippers by means of a sole rest 18 which receives a short downward swinging movement from the action of a cam'20 in engagement with a roll 22 on a sole rest carrier 24 to assist in the upper pulling operation. The machine has also the usual means for laying the upper over the margin of the sole at the toe end and at the opposite sides of the forepart and for fastening it by tacks or the like, the instrumentalities for performing theseoperations in the different locations being mounted upon side arms 26 and a front arm 28' (Fig. 1), these arms being moved inwardly toward the shoe to perform the overwiping operation and to position the tacking devices for the driving of the tacks. The overwipin g operation at the toe end of the shoe is formed by-end embracing wipers 30 on the front arm 28 which are advanced and closed perto wipe the upper into lasted position. The

wipers 30 are carried by a supporting bracket 32 which is, movable relatively to the arm 28 to permit the operator to advance the wipers preliminarily into engagement with the upper around-the toe end of the shoe mounted on side clamp arms 34 which are swung inwardly'at the opposite sides of the shoe by connection to: a cam operated slide 3 The cycle of operations of the machine.

herein shown is performed in three successive stages under the control of clutch and brake mechanism which is arranged to be actuated by means of a treadle 38 andfa treadle rod 40 to *start the machine at the beginning of each stage of the cycle and is automatically operative to bring the machine to a stop at the end of each stage. I The I I details of this mechanism are not herein illustrated but are fully shown and 'described in United States Letters Patent No. 791,986, granted on June 6, 1905 upon an application of- R. F. McFeely. When the machine is started the first time by depres-' sion of the treadle the grippers are closed and the upper is pulled by the 'updraw movement of the gripper levers and by depression of the sole rest, whereupon the ma chine comes to a stop with the-upper held under tension to permit its inspection and any necessary adjustment. -When"the machine is started the second timeQth'e side clamp, arms 34are swung inwardly by the action of the slide 36 to'hold and support the shoe for the subsequent overlaying and fastening operations. I at rest after this period of the cycle the operator is permitted to advance the wipers 30 and adjust them in contact with the upper and'may also trip 'th'e toe gripper to cause it to release-the upper. When the machineis 'While the machine is started for the third time the overwiping and fastening operations are performed, the

shoe is released, and the parts are returned to their starting positions: 7

The machine shown is alsoprovlded with sole edge hold-down mechanism'which is similar-in-its general organization to the mechanism shown in the prior patent,and comprises membersforengagingthe marg1- nal edge or feather of the sole atthe'toe "end and at opposite sides of the forepart of the shoe. The toe end hold-down member comprises a plate 42 having a depending lip curved in substantial conformity to the curve of the edge of the sole around the toe, this plate being mounted upon anarm 44 'pivotally connected to a slide 46 which is movableupwardly and downwardly along the inner side of the toe gripper-bar and casing. The position of the member. 42

respectively eration, as wellas them downwardly operating means, a link keyed the clutch hub 76.

a necessary "For this purpose the hub 76 is on lengthwise of the shoe is positively determined by connection of the arm'44 to an upwardly extending projection 48 on the sole rest 18, and when the hold-down is moved upwardly, as will be hereinafter described, a spring 50 swings the arm forwardly toward the gripper. Each side holddown member comprises'a plate 52 pivotally connected to a slide 54 which extends upwardly along the'nside gripper casing. s in the machine shown in said prior'patent, the present machine has operating means for the several hold-down members to position them initially for engagement with the marginal edge of the sole when the shoe is presented in engagement with the sole rest, to move them downwardlyin order to hold them in substantial engagement with'the sole as the shoe is depressed by the sole rest, and subsequently to move them upwardly away from the sole to permit the overlaying and tacking operations to be performed. For these purposes a shaft/56 is provided having crank arms 58 and 60 which are connected by means of links 62 to the slides'54 of the two-side'hold-down members, the arm 58 having an extension 64 connected by a link 66 to the slide 46 of the toe hold-down member. "For moving the several hold down with the sole rest in the upper pulling opfor subsequently moving after their release to return them again to their starting position, the shaft 56 is turned against the resistance of a spring 68 by mechanism fully shown and described in the prior patent and including a lever 70 connected to the gripper H 72 (Fig. 1) and a crank arm 74 (Fig. 2), the latter being loosely mounted on the shaft 56'and having a clutch face arranged to coeperate with a similar face on a clutch hub 76'which is to the shaft and is normally pressed by a spring? 8 toward the hub of the'arm174.

It will be evident that as theflparts are 4 shown in Figs. 2 and 3 the hold-down members are held in engagement with the sole while the upper is held undertension by the grippers, the members being thus positioned by the positive connection of theshaft 56 to the crank arm 7 4 and its operating mechanism through In order to cause the hold-down members to be withdrawn from operative position at the required time,'it is to disconnect" the shaft 56 from the arm 74 and release it the spring 68 by moving the clutch hub'7 6 outwardly or toward the right (Fig; 2). the flanged outer end of engaged byrolls 80 mounted a yoke-shaped member 82 which is fast the upper end of a vertical rock shaft members downwardly their lowest position in the pin 104 to permit the pin to move uptothe act-ionof ed by the movement of the vided with a lever arm 86 through which movement isimparted to the shaft to retract the clutch hub and release the hold-down members.

In the present construction the arm 86 is arranged to be operated manually to effect the release of the hold-down members by mechanism connected to the treadle rod 40. This mechanism comprises-a rod 88 con nected' at its lower end to a clamp 90 on the treadle rod and supporting at its upper end a sleeve member 92 which is pivoted transversely to the lower end of a rod 94, the latter extending loosely into a socket in a sleeve member 96 supported in bearings in a bracket 98 on the frame of the machine.

beveled periphery arand to swing the arm to effect the release of the hold-down members when the sleeve 96 is raised by the operation of the treadle rod. This cap is eccentrically mounted to permit adjustment for wear and to time properly the release of the hold-down members. In order to render the treadle rod and its connections comprising the members 88, 92 and 94 effective to raise the sleeve member 96, the member94 carries a transverse pin 104 which is arranged to engage the lower end face of the member 96 at the required time to cause the member to be raised as the treadle is operated.

I In order that the hold-down members shall not be released until the required time, which in a machine of the type herein shown is immediately prior to the operative movement of the wipers over the shoe, the machine has a lost motion connection to render the treadle ineffective to operate the arm 86 until it is depressed the third time to initiate the final stage of the cycle of operations. For this purpose the sleeve member 96 is provided with slots 106 in its opposite sides toreceive the pin 104, and at the time of the first'two actuations 0f the clutch to start the machine the member 96' is positioned with these slots in alinement with \vardly without raising the sleeve 96 and without affecting the hold-down members.

mal position of the pin 104 and permit the pin in the next operation of the treadle to engagethe lower end of the sleeve and raise it. Inthe construction shown this is effectslide 36 which, as hereinbefore explained, is'the means providedfor swingingthe clamp arms 34 inwardly in the second stage of the cycle of operations, this slide carrying an'abutment member 108 which is arranged to engage the end of an arm 110 fast on the sleeve'96."

Since the pin 104 may be positioned within the slots 106 at the time when the slide 36 is operated immediately after the second depression of the treadle, a lost motion connection is provided between the rod 88 and the sleeve 92,comprising a pin 112 which projects from the rod through an arcuate slot 114 in the'side of the sleeve member, this slot having a length corresponding to the extent of turning movement of the sleeve 96 effected by the slide 36. A spring 116 connected at its opposite ends respectively to the pin 112 and to a pin 118 on the member 92 holds the members88 and 92 normally in the relation shown in Fig. 5 while permitting the member 94 to be turned with the sleeve 96 as above described. When the .treadle is released by the operator after the machine has been started for the second time, the downward movement of the treadle rod effect-edby the spring 41 serves to withdraw the pin 104 from the slots 106, whereupon the spring 116 reacts to impart a reverse turning movement to the member 94, thus carrying the pin 104 out of alinement with the slots and into position for engagement with the lower end of the sleeve mem-.

ber 96-to raise it and effect the release of the hold-down members when the treadle is .neXt operated. A spring 119 connected at its opposite ends to the abutment member 108 andthe arm 110 serves to return the arm and the sleeve 96 to starting position when the slide 36 receives its return movement.

It will be evident from the foregoing description that in the construction herein provided the release of the hold-down members and their withdrawal from operative position is postponed until after the side clamp'arms have been swung into engagement with the shoe and'untilafter the operator has been permitted, during the pause in the operating cycle following such inward movement of the clamp arms, to advance the wipers and position them in en-,

gagement with the shoe in preparation for their subsequent operative movement over the shoe. .The hold-down members, particularly the one at the toe end, are thus main tained in position to prevent any upturning of the marginaledge of the sole by pressure of the upper as the-wipers are manipulated and adjusted in position against the shoe.

By reference'to Fig. 6 it will be seen that in the present construction the connection between. the toe holddown plate 42 and the supporting arm 44 comprisesa lug 120 which projects upwardly from the plate 42' and has a partially cylindrical contour for engage-V ment in a bearing extending transversely of the arm. 44, suflicient clearance being afforded between the lug'and the plate and adjacent portions of'the arm to permit the plate to tip about the transverse axis thusprovided. This provision for tipping movevided, this pin being mounted in aislot 'in' the arm and having a wedge shaped end arranged to engage m a V-shaped arcuate slot 124 in the member 120. lVhen pressure is applied to slide the member 120 out'of its bearing the pin 1221s wardly to release. the member. 7

Having described the invention, what I cla m as new and desire to secure by Letters Patent of the United States is: i 1. In a machine of the class described constructed to perform its cycle of operations in successive stages after each of which the machine comes automatically to rest, the combination with starting meansmovable to initiate the operation of the machine at each stage of the cycle, of meansfor engaging the marginal edge of the sole of the shoe to position it relatively to, the last in one stage of the cycle, and means operated by a subsequent movementof said starting means.

successive stages after each of which the 6 machine comes automatically to rest, the

combination with starting means movable.

to initiate theoperation of the machine at each stage'of the cycle, ofa sole edge hold- 7 down member, and. means operated vby one of the movements of said starting means to cause said member to be withdrawn from operative position independently of the power operation of the machine. a I

n a machine of the. class described c'on= power operation of the.

wedged b k structed to perform its cycle of operations in successive stages after each of which the machine comes automatically to rest, the combination with starting means movable to initiate the operation of the machine at operative position, and a' tripping device arranged to be operated by a subsequent" movement of said starting means .to release the sole engagingmeansto the faction of said spring means.

each stage of the cycle, of-means for engagmg the marginal edge of the sole of the f 4. In a machine of the class described constructed to perform its cycle of operations in three successive stages with alternating periods of rest, the combination-with starting means movable to initiate the'operation of the machine at each stage of -the cycle,of means for engaging the marginal edge of the sole of the shoe to position it relatively to the last during the first and second stages of the cycle, and means arranged to be operated by the movement of said starting means to initiate the third stage of the cycle to cause said sole engaging means to be withdrawn from operative position.

5. In a machine of the class described having means for pulling an upper over a last in one stage of the cycle of operations and means for laying the margin of the upper inwardly over the bottom'of the last in a subsequent stage of the cycle following a period of rest, the combination with starting means movable to initiate the operation of the machine at each stage of the cycle, of means for engaging the marginal edge of the sole of the shoe to position it relatively to the last during the upper pulling operation,- spring means for withdrawing said sole engaging means from operative position, and meansarranged to be operated by the starting means in its movement to initiate the overlaying stage of the cycle to release said sole engaging means to the action of said spring means. j

6. In a machine of the class described, the combination with means for pulling an upper over into enga ement with the shoe after the upper has been pulled, and overlaying means arranged to operate after said holding means has been moved to operative position, of means for engaging the marginal edge of the sole of the shoe to position it relatively to the last, and means arranged tobe operated after the holding means has been moved into engagement with the vshoe to cause said sole engaging means to be withdrawn from operative position.

7. In a machine of the class described constructed to perform its cycle of operations in three successive stages with alternating periods of rest and having means for pulling an upper over a last in the first stage, shoe holding means movable into engagement with the shoe in the second stage, and means for overlayingthe margin of. the upthe combination with a sole-edge hold-down member, of means for maintaining said member in engagement with the edge of the sole throughout the first and second stages of the cycle of operations, and means for subsequently causing "said member to be withdrawn from operative ,7

position to make way for the operation of the overlaying means.

8. In a machine of the class described conengagement with the a last, shoe holding means movable chine at each stage of structed to perform its cycle of operations in three successive stages with alternating periods of rest and having means for'pulling' an upper over a last in the first stage, shoe holding means movable into engagement with the shoe in the second stage, and means for overlaying the margin of the upper in the third stage, the combination with starting means movable to initiate the operation of'the machine at each stage of the cycle, of means for engaging the marginal edge o the sole of the shoe to position it relatively to the last in the first two stages of the cycle, and means operated by movement of said starting means to initiate the third stage of the cycle to cause said'sole engaging means to be withdrawn from operative position.

9.'In' a machine of the class described, having means for pulling an upper over a last in one stage of the cycle of operations 85 and wipers for laying the margin of the upper inwardly over the bottom of the last in a subsequent stage of the cycle following arperiod of rest in which the operator permitted to position the wipers preliminarily in engagement with the shoe, the combination with a sole-edge hold-down member, of means for maintaining said member in engagement with the edge of the sole during the upper pulling operation, and means to cause said member to be withdrawn from operative position independently of the power operation of the machine after the wipers have been positioned in shoe. s

10. In a machine of the class described constructed to perform its cycle of opera tions in successive stages after each of which the machine comes automatically to rest, the combination with starting means movable to initiate the operation 'of the machine at each stage of the cycle, of means for engaging the marginal edge of the sole of the shoe to position it relatively to the last, mechanism arranged to be operated by one of the movements of said starting means to cause said sole engaging means to be withdrawn ifIOIIl operative position, and power operated means for rendering the starting means effective to operate said mechanism.

11. In a machine of the class described constructed to perform its cycle of operations in successive stages after each of which the machine comes automatically to rest, the combination with starting means movable to initiate the operation of the mathe cycle, of means for engaging the marginal edge of the sole of the shoe to position it relatively to the last, mechanism arranged to be operated by said starting means'to cause said sole engaging means to be withdrawn from operative position, means for positioning said mech anismnormally in inoperative relation to cally operative at a definite point in the cycle to position said mechanism in operative relation to the starting means.

12. In a machine of the class described constructed-to perform its cycle ofoperations in successive stages after each of which the machine comes automatically to rest, the

' combination with starting means movable to initiate the operation of the machine at each stage of the cycle, of means for engaging the marginal edge of the sole of the shoe to position it relatively to the last, mechanism arranged to be operated by said starting means to cause said sole engaging means to be withdrawn from operative position, and means arranged to be operated in one stage of the cycle to render the starting means effective to operate said mechanism when it is next moved to start the machine.

13. In a machine of the class described constructed to perform its cycle of operations in three successive stages with alternating'periods of rest, the combination with starting means movable to initiate the operationof the machine at each stage of the cycle, of means to engage the marginal edge of the sole of the shoe to position it relatively to the last in the 'first and second stages of the cycle, mechanism arranged to be operated by said starting means to cause said sole engaging means tobe withdrawn from operativeposition, means for positioning said mechanism normally in inoperative relation to the starting 'means, and

-means automatically operative in the second stage of the cycle to render the starting meanseflective to operate said mechanism when it is next moved to start the machine.

14. In a machine of the class described constructed to perform its cycle of operations in successive stages after each of which the machine comes automatically to rest, the

combination With starting means movable to initiate the operation of the machine at each stage of the cycle, of means for engaging the marginal edge of the sole of the shoe to position it relatively to the'last, mechanism arranged to be operated by one of the movements of said starting means to cause said sole engaging means to be withdrawn from operative position, said mechasism including a. lost motion connection to render the starting means normally ineffective to cause the withdrawal ofthe shoe engaging means, and means automaticallyoperative. at a definite point in the 'cycle of operations to eliminate said lost 'IIIOtlOIl.

15; In a machine of the class described constructed to performitscycle of operations in successive stages after each of which" the machine comes automatically to rest, the combination with starting means movable to initiate the operation of the maghine at sole engaging means to the action of said spring, connections between said tripping device and the starting means including parts relatively movable to render the starting means normally ineffective to operate said device, and. means automatically operative at. a definite point in the cycle to move one of said parts relatively to an other to render the starting means effective to operate said device. when it is next moved to start the machine. V

16. In a machine of the class described constructed to perform its cycle of'operations in successive stages with alternating periods of rest and having means for pulling an upper over a last in one stage and for overlaying the margin of the upper in a subsequent stage the combination with starting means movable to initiate the operation of the machine at each stage of the cycle, of means for engaging the marginal edge of the sole to position it relatively to the last during the upper pulling operation, mechanism arranged to be operated by said starting means to cause said sole engaging means to be withdrawn from operative position, means for positioning said mechanism normally in inoperative relation to said starting means, and means automatically operative prior'to the overlaying stage in the cycle of operations to position said mechanism in operative relation to the starting means. 7 v r 17. Ina machine of the class described, the combination with means for pulling an upper over a last in one stage of the cycle of operations, means movable'into holding relation to the shoe in the next stage, and means for overlaying the margin of the upper in the third stage, of starting means movable to initiate the operation of the machine at each stage of the cycle, means for'engaging the marginal edge of the sole of the shoe to position it relatively to the last in the first two stages of the cycle, mechanism arranged to be operated by said starting means to cause said sole engaging means to be Withdrawn from operative position, means for. positioning said mechanism normally in inoperative relation to'the start- 7 in 'operameans to cause said sole engaging means to be withdrawn from operative position, and' controlling means automatically operative to render said manual means alternately effective and ineffective to cause the withdrawal of the sole engaging means.

19. In a machine of the class described, the combination with means for working an upper over a last, of means for engaging the marginal edge of the sole of the shoe to position it relatively to the last, means comprising a spring for withdrawing said sole engaging means from operative position, a tripping device to -release the sole engaging means to the operation of said spring, manual means for operating said device including a lost motion connection normally effective to preventthe operation of the device, and means automatically operative at a definite point'in the cycle of operations of the machine to render said manual means effective to operate said device.

20. In a machine of the class described constructed to perform its cycle of operations in successive stages after each of which the machine comes automaticallyto rest, the combination with starting means movable to initiate the operation of the machine at each stage of the cycle, of means for engagally operative ing the marginal edge of the sole of the shoe 7 to position it relatively to the last, power operated mechanism for controlling said sole engaging means to maintain it in engagement with the sole, and means arranged to be operated by one of the movements of said starting means to release the sole engaging means from said power mechanism.

21. In a machine of the class described constructed to perform its cycle of operations in successive stages after each of which the machine comes automatically torest, the combination with starting means movable to initiate the operation of the machine at each stage of the cycle, of means for engaging the marginal edge of the sole of the shoe to position it relatively to the last, power operated mechanism for controlling said sole engaging means to maintain it in engagement with the sole, means arranged to be operated by one of the movements of said starting means to release the sole engaging means from said power mechanism, and power operated means for rendering said starting means alternately effective and ineffective to cause such release.

22. In a machine of the class described constructed to perform its cycle of operations in successive stages. after each of which the machine comes automatically to rest, the combination with starting means movable to initiate the operation of the machine at each stage of the cycle, of means for engaging the marginal edge of the sole of the shoe marginal ed for engagement to position it relatively to the last, power operated mechanism for controlling said sole engaging means to maintain-it in engagement with the sole, mechanism connected to said starting means to effect the release of said Sole engaging means from the power mechanism and including parts arranged for relative movement to render the starting means normally ineffective to cause such release, and power means for moving one of said arts relatively to another to render the starting means in its next operative movement effective to cause the release of the sole engaging means.

23. In a machine of the class described, the combination with means for working an upper over a last, of means for engaging the edge of the sole of the shoe to position said edge relatively to the last, power operated mechanism for controlling said sole engaging means to maintain it in engagement with the sole, and manually operated means for causing said sole engaging means to be withdrawn from operative position independently of the power operation of the machine.

24. In a machine of the class described, the combination with means for working an upper over a last, of means for engaging the marginal edge of the sole of the shoe to position said edge relatively to the last, power operated mechanism for controlling said sole engaging means to maintain it in engagement with the sole, means compris-' ing a spring for withdrawing said sole engaging means from operative position, and a manually operated tripping device for releasing said sole engaging means to the action of said spring.

25. In a machine of the class described, a hold-down member curved in substantial conformity to the edge contour of the end of a sole and having an edge portion constructwith the marginal edge of the sole on its bottom face outside of the rib or shoulder of the sole, a support for said member, and a connection between said member and support constructed to permit the member to tip to adjust itself in conformity to the lengthwise contour or inclination of the sole.

26. In a machine of the class described, a hold-down member curved in substantial conformity to the edge contour of the end of a sole and having an edge portion constructed for engagement with the marginal edge of the sole on its bottom face outside of the rib or shoulder of the sole, a support for said member, and a projection on said member swiveled in said support to permit the member to tip about an axis extending laterally of the shoe in response to pressure of the sole against it.

27. In a machine of the class described, a hold-down member curved in substantial conformityto the edge contour of thevend of a retaining device arranged to hold said 10 a sole for engagement with the marginal member normally in operative position on its edge of the sole on its bottom face, a supsupport and to yield automat-lcallyas said port for said member, means comprising a member is moved to disconnect it from the 5 swivel connection between said member and support. t I

its support to permit the member to tip about In testimony whereof I have signed my 15 an axis extending laterally of the shoe and name to'this specification. g V i to be disconnected from the support by 2 j movement in the direction of said axis, and BERNHARDT JORGENSEN.

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