US2473595A

US2473595A - Turret type last pulling and relasting machine

Info

Publication number: US2473595A
Application number: US780381A
Authority: US
Inventors: John T Lancaster
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1947-10-17
Filing date: 1947-10-17
Publication date: 1949-06-21
Anticipated expiration: 1966-06-21

Description

June 2l, 1949. J. T. LANCASTER TURRET TYPE LAST PULLING AND BELASTING MACHINE 5 Sheets-Sheet l Filed 0G11. 17, 1947 June 2l, 1949. J. T. LANCASTER TURRET TYPE LAST PULLING AND BELASTING MACHINE Filed 0G11. 17, 1947 5 Sheets-Sheet 2 In ven fm" .lune 2l, 1949. J. T. LANCASTER 2,473,595

TURRET TYPE LAST PULLING ANDl BELASTING MACHINE Filed 0G12. 17, 1947 5 Sheets-Sheet 5 June 2l, 1949. J. r. LANCASTER TURRET TYPE LAST PULLING AND RELASTING MACHINE Filed oct. 17, 1947 5 sheets-shea 4 [nvenfr fo/m, flamme-fer* June 21, 1949. J, T ANCATER 2,473,595

TURRET TYPE LAST PULLING AND BELASTING MACHINE Y Filed oct. 17, 1947 5 sheets-sheet 5 nvemor John ffczncafer Patented June 21, 1949 UNITED STATES TENT OFFICE TURRET TYPE LAST PULLING AND RELASTING MACHINE Application October 17, 1947, Serial No. 780,381

(Cl. 12-l5l 17 Claims.

This invention relates to machines for use in the manufacture of shoes and is herein disclosed as embodied in a conveyor type machine having a plurality of operating stations at one of which are provided instrumentalities for both delasting and relasting a shoe. In the manufacture of certain types of shoe the shoe is assembled tightly upon a last from which it must be removed to enable it to be subjected to a stitching operation, and after the shoe has been stitched it must be relasted to prepare it for subsequent operations.

It is an object of the present invention to provide a machine of the conveyor type provided with means for delasting and relasting a shoe at one of its operating stations. In accordance with a feature of the inventiton the illustrative machine is provided with a last support movable through a plurality of operating stations and with means at one of said stations for loosening a shoe upon a last on the last support. As shown herein, the illustrated machine is also provided with means for relasting the shoe after the stitching operation has been performed. The machine is so arranged as to enable the shoe to be relasted conveniently upon the same last on which it was originally assembled. The delasting and relasting operations may be performed by mechanism comprising a driven friction element the direction of which may be reversed to enable it to perform either operation at will. The illustrated machine is further provided with means for moving the last support from one station to another and for automatically locking it at the several stations.

These and other features of the invention, in-

cluding certain details of construction and comf binations of parts, will now be set forth in connection with an illustrative machine and will be pointed out in the appended claims.

Referring now to the drawings,

Fig. l is a side elevation, partly in section, of an illustrative machine embodying the invention;

Fig. 2 is a plan view of the machine shown in Fig. 1;

Fig. 3 is a front elevation of the machine;

Fig. 4 is an enlarged side elevation of a shoe in relation to the relasting mechanism;

Fig. 5 is an enlarged side elevation, partly in section, of a conveyor carriage and mechanism associated therewith;

Fig. 6 is a detail view in radical section of a portion of the mechanism shown in Fig. 5;

Fig. 7 is a plan View of the relasting instrumentalities; Fig. 3 is a sectional View in front elevation of f the reversing gears for driving the friction belt; and

Fig. 9 is a plan view showing a portion of the conveyor mechanism.

The purpose of the illustrated machine is partially to remove a lasted shoe IS (Figs. 1 and 2) from its last L, convey the shoe while loose upon the last to within reach of the operator of a Littlevvay stitching machine (who removes the shoe from its last, presents it to the stitching machine, and replaces it, after stitching, loosely upon the last), convey the stitched shoe back to its original position, and force the shoe more rmly upon the last. The machine thus operates between two stations, one of which, indicated by the reference numeral (Figs. 1 and 2), is the loading and unloading station and the other of which, indicated by the reference numeral 2?., is

the stitching station.

The operations of delasting and rele-.sting are performed at the loading station 28. The delast.. ing and releasting apparatus comprises a driven belt 2li frictionally engageable with the counter portion of the shoe S. A reversing mechanism 26 (Fig. 8) is provided to enable the belt 2l! to y be driven in one direction for delasting and in the opposite direction for relasting. The last L is carried by a jack 28 which is mounted for swinging movement upon a carriage 3i) to enable the operator to force the counter portion of the shoe against the friction belt 24. The carriage 30 is guided upon a circular horizontal track 32. It is driven by a constantly rotating ring 34 to which it may be coupled at will and from which it is automatically uncoupled upon arrival at either of the

stations

20 or 22. The ring 34 is driven in a counterclockwise direction as seen from above and as indicated by the arrow on Fig. 2. Several carriages similar to the carriage 30, and similarly numbered on the drawings, are provided, and the uncoupling mechanism of each is so arranged that a carriage will automatically be uncoupled from the driving mechanism before striking a carriage preceding it which is held stationary at one of the operating stations. The coupling of the carriage to the driving mechanism is always effected by the operator and the uncoupling of the carriage lis always automatic, Without the intervention of the operator.

The supporting structure of the machine consists of a column 36 (Figs. 1 and 3) adapted to rest upon the floor and supporting a head 38 (see also Fig. 8) having an upwardly extending cylindrical or sleeve-like portion 4B. Rigidly mounted on the upper portion of the sleeve 40 is a four-armed spider 42 which at the radial extremities of its arms carries the track 32. The rotating ring 34 is carried upon the extremities of the arms of a six-armed spider 44 having a hub 48 which is journaled for rotation upon an exterior nished surface of the sleeve 48. The hub 4B rests upon a hardened steel washer 4l which is supported upon a horizontal circular flange 48 integral with the head 38 and which thus carries the vertical thrust resulting from the weight of the ring 34 and its. supporting structure. Formed upon the upper portion. of the hub 48 are gear teeth 58 which mesh with av pinion 52 secured upon a vertical -countershaft 54 journaled in the hub of the stationary spider 42.. Also secured upon the shaft 54 is a gear 58 which meshes with a pinion 58 secured upon the upperv portion of a vertical shaft 68 which is journaled in the sleeve 48. Rotation of the shaft 88 is effected through gearing 62 (Fig. 3) by a motor 84 mounted on a bracket 68 secured upon the column 38. The ring 34 is thus driven in the same direction as the shaft 68.

The friction belt 24 runs over a pair of rolls 88 (Fig. I) and. 18 (Fig. 8), the roll 68 being an idler roll and the roll 18' being driven. The roll 68, which, except for a groove 69 (Fig. '7) formed in its periphery, is similar in construction to the roll I8l disclosed in United States Letters Patent No. 1,882,083, granted October 11, 1932, upon an application filed in the name of George A. Miner, is mounted on a shaft 12 journaled in bearings carried by a bracket 14 which is mounted upon one of the arms of the stationary spider 42. The groove 69, into which the heel end of the shoe is forced, enables the belt 24 to exert upon the shoe a considerable tractive force which is distributed over a wide area. The roll 18 is mounted upon a shaft 18 which is journaled in suitable bearings l1 carried by a bracket '|'8 mounted on two of the arms of the spider 42.

The driving and reversing mechanismfor the friction belt 24 is best shown in Fig. 8. It comprises a bevel gear 88 mounted upon the upper end portion of the shaft 88 and' meshing simultaneously with a pair of

coaxial bevel gears

82 and 84 which are thus constantly driven in opposite directions, the direction of rotation of the gear 82 being counterclockwise, as seen in Fig. 1, and the direction of rotation of the gear 84 being clockwise. The

gears

82, 84 are freely rotatable upon the shaft 16 and are held against movement away from each other by the engagement of their hubs with the. bearings l1. Extending from the inner face of the gear 82 in a direction parallel to the shaft 16 is a clutch pin 86 and extending also parallel to the shaft 'I8 from the inner face of the gear 84 is a similar clutch pin 88. Slidable within an axial bore 88 in the shaft 18 is a rod 92 from which extend radially a pair of clutch pins 94 and 96. The roll F8 is secured by a setscrew 98 to the shaft 16. A. slot |88 formed in the body portion of the roll 18 registers with a slot |8| formed in the shaft 1B, both slots extending in a direction parallel to the axis of the shaft i8 to accommodate movements of the clutch pin 94 when the rod 92 is shifted axially. A similar slot |82 formed in the roll 18 registers with a slot |83 formed in the shaft i6, both slots extending in a direction parallel to the axis of the shaft to accommodate similar movements of the clutch pin 98. The slots |88 and |82 serve the further purpose, in conjunction with the

pins

84 and 96, of keying the roll 1.8 to the shaft 16. The rod 92, is shifted axially by a lever |84 (see also Fig. 2)

-, of the roll 18.

fulcrumed upon a pin |86 secured in a bracket |81 carried by one of the stationary spider arms 42. At one end of the lever |84 is a hand grip |88 and at the other end is an antifriction roll |88 which engages between a pair of collars ||2 secured on the rod 92. It is evident that the operator, in swinging the lever |84 to his left, will shift the rod 92 to the right and thereby bring the pin 94 into the path of movement of the pin 88, causing the shaft 'F6 and the roll 18 to be driven eounterclockwise as seen in Fig. 1. Swinging ofthe lever |84 to the operators right will bring the pin 98 into the path of movement of the pin 88. to reverse the direction of rotation The lever |84 is normally held by a spring detent |3 in a neutral position wherein neither. of the clutch pins 94 and 98 is in clutchengaging position. With the lever |84 in this neutral position, the roll 18 is therefore stationary. The detent I3 is engageable with an appropriate one of three recesses ||5 formed in the bracket |8ly to hold the lever in its neutral position or in either one of its operating positions.

Each carriage 38 has a pair of rolls H4 (Figs. 1, 2 and 8) which roll upon the upper surface of the track 32. Each of the rolls ||4 has a pair of flanges ||8 which engage oppositely disposed finished surfaces on the track 32 to hold the roll H4 against endwise movement. The carriage 38 has also a pair of rolls |8 which engage the under surface of the track 32 and which are provided with flanges |28 engaging oppositely disposed finished surfaces of the track to hold the rolls against endwise movement relative to the track. The carriages 38 are thus mounted for free movement along the track 32.

The jack 28 is fulcrumed upon a pin |22 secured in the carriage 88 and is urged in a counterclockwise direction, as seen in Figs. 1 and 5, by a torsion spring |24 surrounding the pin |22. The jack 28 "is normally maintained in an upright stop position by a rod |28 (Figs. 5 and 6) carrying at one end a block |28 in which is formed a vertical slot |38 engaging a pin |32 extending from the jack 28 in a direction parallel to the pin |22. The rod |28 is rigidly secured to a slide |34 which is guided for horizontal movement forwardly and rearwardly in a guideway |35 formed in a block which constitutes a portion of the carriage 30. Formed in the upper portion of the slide |34 is a longitudinal groove |38 into which extends the end of a stop pin |48. The engagement of the end of the pin |48 with the end of the groove |38 limits the rotation of the jack 28 about the pin |22 under the inuence of the spring |24 and thus holds the jack 28 normally in its upright position.

Guided for heightwise sliding movement in the jack 28 is a rod |42 (Figs. 1 and 4) which carries a block |44 in its upper end. The block |44 is channel shaped, having a pair of side flanges |46 which engage the opposite side portions of the cone of the last L. Extending up from the block |44 is a last pin |48 which engages the usual thimble hole of the last. The block |44 is pivotally mounted upon a pin |58 secured in the upper end portion of the rod |42 and it may be locked in any one of three angular positions by means of an arm |52 rigidly extending from the block. This arm |52 carries a spring detent which is engageablewth any one of three holes |54 formedr in an arcuate bracket |56 carried by the rod |42. The vheight of the last may be adjusted by means of a hand wheel |58 which turns a pinion |818 .engagingV a' rackformed on the rod |42.

`pin in its bore.

Ament of the pin |92.

ananas The hand wheel |58 is slidably keyed by a pin 300 to a shaft 302 upon which the pinion I t@ also is secured. Longitudinal movement of the hand wheel |58 on the shaft 302 is limited by the engagement of the pin 305 with the ends of a slot 3M in the shaft. The shaft 3532 is journaled in bearings 3% carried by the jack 28. Slidably mounted in a bore in one of the bearings 306, parallel to the shaft 322, is a locking pin 3m engageable with one of a plurality of holes in the pinion l. A head 3|2 on the pin 3MB engages a circumferential groove in the hub of the hand wheel |58 to control the position of the locking A coil compression spring 3M urges the hand wheel, and therefore the locking pin, to the right, into locking position to prevent undesired turning of the hand wheel. When an adjustment is to be made, the operator draws the hand wheel to the left to disengage the locking pin from the pinion; then he turns the hand wheel to the desired position of adjustment; and then he releases the hand wheel, after turning it slightly to enable the locking pin to engage the nearest holel in the pinion.

The arrangement for driving the carriages 3i) between stations and for latching them at the stations comprises a plurality of dogs |62 carried by the rotating ring 3G and extending radially outward therefrom. Each carriage 33 carries an abutment |62 (Fig. 6) which constitutes the end portion of a slide |556 movable radially to bring the abutment itt into or out of the path of the dogs H52. The slide ld is mounted for such radial movement in a guideway 53 formed in a portion of the carriage 3Q, the slide being retained in its guideway by a cover plate |57. The slide |556 is urged radially inward toward engaging position by a coil compression spring I'll housed in a groove formed in the upper portion of the slide #55, both ends of the groove being closed. One end of the spring |78 bears against the inner end of the groove and the opposite end of the spring bears against the end of a rack H2 which is slidable in the groove. The spring Ill) thus normally holds the rack H2 against the outer (left in the drawing) end of the groove. The teeth of the rack H2 extend upwardly and engage a pinion VM carried by a shaft H6 (Fig. l) journaled in the carriage Sii. The pinion llt is engaged also by teeth extending downwardly from a rack llt which is slidable in a guideway formed in the carriage tu. Secured to the rack HS is an upstanding pin i8@ which carries an face |32' at station 2o to permit the rack |15 to move radially inward at that station. Such movement of the rack Il@ turns the pinion |74 and thereby moves the slide it radially outward, disengaging the abutment mtl from the dog |62. The movement of the carriage 36 along the track thereupon stops and the carriage is locked stationary by the engagement of the roll |82 with the recess |26. A similar recess |88 diametrically opposite to the recess |35 is formed in the bearing surface Milt to stop the carriage at station 22.

Secured to and depending from the slide |56 is a pin |93 (Figs. 5 and 6). A slot |92 formed in the cover plate l lil accommodates radial Inove- Each of the carriages 30 has extending -circumferentially from it a cam |94 (Figs. 2 and 5) the purpose of which is to unlatch the following carriage 3|) from the rotating ring 34 when the pin |93 of the following carriage engages and rides up upon an inclined surface |95 of the cam. Such unlatching of the following carriage 3|] is permitted by the yielding of its spring |10 as its pin |95 is forced outwardly, or to the left as seen in Figs. 5 and 6. Each carriage is thus automatically unlatched from the rotating ring 34 before striking against a carriage which is already stationary. When the pin |93 of any one of the carriages 30 engages the cam surface |98 of the preceding carriage, the spring |723 will yield to accommodate the unlatching movement of the slide |65.

When any one of the carriages 3) is locked in one of the operating stations 2i! or 22, the operator at that station. may unlock it and couple it to the driving mechanism by swinging a lever |98 (Figs. 1 and 2) secured to the shaft |16, thereby turning the pinion I'ill in a direction to move the roll |82 out of the recess |86 and also to advance the abutment |65 into the path of movement of the neXt dog |52. As soon as the carriage 3! has been moved by the next dog |62 far enough for the roll |32 to ride again upon the surface |84, the abutment mi will be maintained in its inward or driving position by the rack 78. The movement of any one carriage away from the operating station at which it hasbeen at rest will release any other carriage which has been stopped by the engagement of its pin ll with the cam |9-^| of the carriage which was at rest.

The shoe S is brought into operative engagement with the friction belt 24| while the carriage 32 is at the station 26. The operator accomplishes this by swinging a lever 290 (Figs. l, 2 and 3) extending from a shaft (Fig. 5) which, in turn, is journaled in the forwardly extending stationary spider arm ft2. Secured upon the shaft 262 is a pinion 2535i which engages a rack 28S slidable forwardly and rearwardly in a guideway 208 formed in the spider arm. A coil compression spring 2 it surrounding a rod 2 l2 is interposed between a stationary abutment 2 ill and a stop collar 2lb secured upon the rod 2|2. The rod 2|2 constitutes a rearward extension of the rack 236 and is mounted for sliding movement with the rack. r)The collar 2 I6 limits the forward (or radially outward) movement of the rack 255 under the influence of the spring 2|@ by engagement with the 'rear end of the guideway 228, thus normally maintaining the rack. 2S@ in its forward stop position. Extending forwardly from the rack 266 is a hook 2| 8 which is engageable with a hook 22|] extending rearwardly from the rod |25. When the carriage 3@ of the jack assembly, which includes the rod |26, moves into stop position at station 2i), the hook 22B will move into engagement with the hook 2 i3 and interlock therewith and, when thus interlocked, the hook 226 will be able to transmit rearward movement of the rack 2% to the rod |26. It is evident, therefore, that when the carriage 3l) is locked in station 2li the operator, by pulling forward on the lever 20B, can swing the jack 23 about its fulcrum |22 and thereby bring the counter portion of the shoes into engagement with the friction belt 24. Upon release by the operator of the lever 20|), the torsion spring |24# and the coil spring 2i@ will work together to restore the jack 28 to its upright stop position.

For performingrelasting operations, the machine is provided with a horn 222'-(Figs. 4 and 7) which is securedtorthe adjacent. ends of a pair of coaxial shafts 224 journaled in bearings 226. The shafts 224 are. each normally held in a stop position by torsion springs 228,. said position being determined by pins 230 extending radially from the shaft and engaging the ends of circumferential grooves 232 formed in the bearings 226. The bearings 22.6' are carried upon the forward ends of a pair of parallel slide bars 234 which are urged forwardly to a normal stop position by coil compression springs 236 abutting at their forward ends against collars 238' secured tothe slide bars and at their rear ends against the forward ends of guideways 240 in which the bars 234 are slidable. Secured uponY the rear ends of the slide bars 234 are collars 242y which engage the rear ends of the guideways 240 to limit forward movement of the slide bars. E'ach guideway 240 is carried upon an arm 244 which is secured by a set screw 245 upon a shaft 246 extending parallel to the axis of the roll 68 and journaled in a bearing formed in the bracket 14. A hand grip 248 extending upwardly from. the arm 244 enables the operator to swing the horn 222 into and out of operating position., The horn 222, when not in,

use, normally hangs by gravity in the position shown in Fig. 1, with the bearings 22B resting against the base of the bracket 14.

The operation of the machine will now be described. A supply' of shoesr tightly tted about the lasts upon which, they have been assembled have been placed within reach of the operator at station 20 and the motor 64 has been started to drive the ring 34 and the bevel gears 82 and 84.

right to engage the roll with the gear 84 thereby causing the friction belt 24 to be driven in a clockwise direction as seen in Fig. 1, and he takes `one of the lasted shoes and mounts the last upon the last pin |48. He thereupon grasps the lever 208 and pulls it toward him to bring the counter portion of the shoe forcibly into engagement with the friction belt 24, causing the counter portion of. the shoe to be raised relatively to the last. He then releases the lever 2.88 and draws the lever |98 toward him to unlock the carriage 3|] and couple it to the rotating ring 34. The carriage is thus moved toward station 22 and it will come to that station and automatically be locked there if the station is unoccupied. The operator at station 22 will remove the loosened shoe from its last and perform a stitching operation upon it. This operation may be performed, for example, upon a Littleway stitch-ing machine. When the shoe hasthusr been stitched, the operator at station 22 places it loosely upon the same last from which he had taken it and draws the' lever |98 toward him to unlock the carriage 30 and couple it again to the ring 34. The carriage is thus returned to station 2|), and assuming that station to be unoccupied, it will automatically be locked there. The. operator at station 20 now swings the handle |08 to its extreme left-hand position thereby coupling the roll 1D to the gear 82 and causing the friction belt 24 to be driven in a counterclockwise direction. He then grasps the handle 248 to bring the tip of the shoe horn 222 between thev heel portion of the last and the interior of the heel end of the Shoe, He then pulls the lever 2M! toward him to bring the counter portion of the shoe forcibly into engagement with the friction belt 24 and the action of the friction beltv against the counter portion of the shoe. urges it. downwardly upon the The operator shifts the handle |88 to,

last, thereby relasting the shoe. The operator thereupon releases the. lever 208 and pulls the handle 248 toward him to release the horn 222 from between the last andthe shoe. The operation upon that shoe and last. is now complete and he removes the last from the last pin and proceeds as before with another lasted shoe.

If either of the operating stations is occupied by one of the carriages 30 while another carriage is being advanced toward it, thev second carriage will automatically halt when its pin comes into engagement with the cam |94 of the stationary carriage and it will remain stalled until the carriage preceding it has been moved away from the operating station. The operator at either station is thus aEorded a certain amountv of leeway in the timing of his operation inasmuch as several carriages may be allowed to stall at his station at the same time..

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

l. In a machine for use in the manufacture of shoes, the combination of a last support movable through a plurality of operating stations, means for moving the last support through said stations, means at one of said stations. for loosening a shoe upon a last on said last support, and means for detaining the last support at a succeeding station to permit the loosened shoe to be removed from the last.

2. In a machine for use in the manufacture of shoes, the combination of a last support movable through a plurality of operating stations, means for moving the last support through said stations, means for detaining the last support. at each station, and a relasting device at one station for relasting a shoe which has been loosely placed on a last on the last support at a preceding station.

3. In a machine for use in the manufacture of shoes, the combination of a conveyor having two operating stations, a support for a last on said conveyor, and a combined de-lasting and relasting device for performing their respective functions upon a shoe on the last at one of said stations, said device serving partially to delast a shoe to facilitate removal of. the shoe from the last at the other station and to force the shoe more rmly upon the last after the shoe has been replaced loosely upon the last and returned to the station adjacent to the device.

4. In a machine for user in the manufacture of shoes, the combination of a last support movable through a plurality of operating stations, means for moving the last support through said stations, a driven tool at one of said stations operable when driven in one direction to delast a shoe and when driven in the opposite direction to relast a shoe, and means for reversing the direction of drive of said tool to enable a shoe on a last first to be delasted and then, after being carried loose on the last to another station for further operation and returned loose on the last to the station adjacent to the tool, to be relasted.

5. In a machine for use in the manufacture of shoes, the combination of means for moving a shoe relatively to a last upon which the shoe is mounted, a support for the last, a carriage upon which said last support is mounted for movement to bring the shoe into operative engagement with said shoe-moving means when the carriage occupies a position adjacent to said shoe-moving means, and means for guidingv said 9. carriage for movement between said position and a position remote from said shoe-moving means kfor convenience in performing another operation.

6. In a machine for use in the manufacture of shoes, the combination of means for loosening a shoe relatively to a last upon which the shoe is mounted, a support for the last, a carriage upon which said last support is mounted for movement to bring the shoe into operative engagement with said loosening means when the carriage occupies a position adjacent to said loosening means, and means for moving the carriage from said position to a position remote from the loosening rmeans for convenience in performing another operation.

'7. In a machine for use in the manufacture of shoes, the combination of a relasting device, a support for a last, a carriage upon which said last support is mounted for movementJ to bring a shoe loose on the last into operative engagement with the relasting device to cause the shoe to be relasted when the carriage occupies a position adjacent to the relasting device, and means for moving the carriage from a convenient operating position remote from said relasting device into said adjacent position.

8. In a machine for use in the manufacture of shoes, the combination of a driven tool operable when driven in one direction to delast a shoe and when driven in the opposite direction to relast a shoe, a support for a last, a carriage upon which said last support is mounted for movement to bring a shoe on the last into operative engagement with said tool to cause the shoe to be delasted when the carriage occupies `a position adjacent to said tool, means for moving the carriage first from said adjacent position to a position remote from the tool for convenience in performing another operation upon the delasted shoe and then back to said adjacent position, and means for reversing the drive of said tool to cause the delasted shoe to be relasted when brought again into engagement with the tool.

9. In a machine for use in the manufacture of shoes, the combination of a last support movable through a plurality of operating stations, means for moving the last support through said stations, a tool at one of said stations for effecting relative movement between a shoe on a last on said support and the last, and manually7 operated means for effecting operative engagement between the shoe and the tool when the last support is at that station.

10. In a machine for use in the manufacture of shoes, the combination of a driven rotary friction tool for moving a shoe relatively to a last on which the shoe is mounted, a support for the last, a carriage on which said last support is mounted for movement to bring the shoe into operative engagement with said tool when the carriage occupies a position adjacent to said tool, manually operated mechanism for thus moving the last support to cause the shoe to engage the tool, and means for guiding the carriage for movement between said position and a position remote from said shoe-moving means for convenience in performing another operation.

11. In a machine for use in the manufacture of shoes, the combination of a driven rotary friction tool for moving a shoe relatively to a last on which the shoe is mounted, a track, a carriage movable along said track between operating stations adjacent tc and remote from said tool, a lever pivotally mounted on said carriage and adapted to carry a last with a shoe thereon, and

10 manually operated mechanism engageable with said lever when the carriage occupies the station adjacent to said tool, said manually operated mechanism being constructed and arranged to move the lever to cause the shoe to be pressed against said tool.

12. In a machine for use in the manufacture of shoes, the combination of a support for a last, a carrier on which said last support is mounted, a tool for operating upon a shoe on the last, means for moving said carrier into and out of an operating station adjacent to said tool, means for disengaging the carrier from the moving means and for holding the carrier in said station, and manually operable means for moving the last support to cause the shoe to engage the tool while the carrier is in said station.

13. In a machine for use in the manufacture of shoes, the combination of a jack for supporting a last, a carrier upon which said jack is pivotally mounted, a tool for operating upon a shoe on the last, means for moving said carrier into and out of an operating station adjacent to said tool, means for disengaging the carrier from the moving means and for holding the carrier in said station, and manually operable means for swinging the pivotally mounted jack to bring the shoe on the last into operative engagement with the tool while the carrier is in said station.

14. In a machine for use in the manufacture of shoes, the combination of a jack for supporting a last, a carrier upon which the jack is movably mounted, a tool for operating upon a shoe on the last, means for moving the carrier into and out of an operating station adjacent to said tool and for holding the carrier in said operating station, mechanism supported independently of the carrier for moving the jack relatively to the carrier to bring the shoe on the last into operative engagement with the tool, and a normally disengaged connection between said mechanism and the jack, said connection being on the carrier and being constructed and arranged to come into operative connection with said jack-moving mechanism when the carrier moves into said operating station.

15. In a machine for use in the manufacture of shoes, the combination of a plurality of jacks for supporting lasts, a carrier for each of said jacks, the jacks being mounted for movement relatively to their carriers, a tool for operating upon shoes on the lasts, means for moving the carriers into and out of an operating station adjacent to said tool and for holding the carriers in said operating station, a device for moving the jacks relatively to their carriers to bring the shoes on the lasts into operative engagement with the tool, and a normally disengaged connection on each of the carriers, each of said connections being constructed and arranged to come into operative engagement with said jack-moving device to connect the associated jack with the device when the associated carrier moves into the operating station.

16. In a machine for use in the manufacture of shoes, the combination of a circular stationary Substantially horizontal track, a work support movable on said track between operating stations, a frame for Supporting said track, a driving ring coaxial with said track, means for coupling said work support to said driving ring, a drive shaft coaxial with said track, a tool supported by said frame for operating on a shoe on said work support, a driving connection from said shaft to said tool, and a driving connection from said shaft to 1'1 said ring, said ring being rotatably mounted on said frame at a locality below the level of that portion of the shaft to which the tool driving connection is connected.

17. In a machine for 'moving shoes relatively to lasts, a rotary friction tool, a support for a last with a shoe thereon, means for moving said support to bring the counter portion of the shoe into engagement with the tool, driving means for said tool, and a reversing gear in said driving means for enabling the tool to be driven in one direction to delast a shoe on the last and in the opposite direction to relast a shoe loosely mounted on the last.

JOHN T. LANCASTER.

REFERENCES CITED The following referenlces are of record in the file of kthis patent:

UNITED STATES PATENTS Number Name Date Re. 18,186 Pym Sept. 15, 1931 1,097,845 Colt May 26, 1914 1,678,165 Pym July 24, 1928