US2226774A - Relasting machine - Google Patents

Description

Dec. 31, 1940. J. T. LANCASTER RELASTING MACHINE Filed March 14, 1940 4 Sheets-Sheet 1 AMA/70R W Tim a M g/ Dec. 31, 1940- J. 'r. LANCASTER RELASTING MACHINE Filed March 14, 1940 4 Sheets-Sheet 2 L I ll Deoz. 31, 1940- J. 'r. LANCASTER RELASTING MACHINE 4 Sheets-Sheet 5 Filed March 14, 1940 TigAL.

Dec. 31, 1940. .1. 'r. LANCASTER RELASTING MACHINE 4 Sheets-Sheet 4 Filed March 14, 1940 Ill-Ill a M T Patented Dec. 31, 1940 RELASTING MACHINE John T. Lancaster, Newton, Mass., assignor to United Shoe Machinery Corporation, Borough of Flemington, N. J a, corporation of New Jersey 31 Claims.

This invention relates to relasting machines and is herein illustrated and described as embodied in a relasting machine particularly adapted to operations upon hinged or otherwise collapsible lasts. The machine disclosed herein, in common with previous relasting machines, is provided with a support for the last, for example, a last pin, and with instrumentalities which act upon the shoe to urge the shoe upon the last.

It is an object of the invention to provide an improved relasting machine which is easy to operate and which, in its action, simulates a manual performance of the operation. In accordance with a feature of the invention, the illustrated relasting machine is providedv with a pair of members mounted upon the ends of a lever and en gageable, respectively, with the forepart of the shoe upper and with the heel end of the shoe bottom, in combination with means for swinging the lever to cause the forepart engageable member to straighten a collapsed last end and to cause the heel end engageable member to urge the heel end of the shoe upon the last. The fulcrum of the lever, as shown, may be substantially coaxial with the hinge of the last. The illustrated machine is further provided with a friction device constructed and arranged to be held in engagement with the shoe by the operator and. to be moved by power-driven means to urge the shoe upon the last. This device, as disclosed herein, may consist of a pair of members which exert clamping pressure upon the opposite edges of the sole of the shoe. As further shown herein, the machine is further provided with a horn for guiding the heel end of the shoe upon the last. The movements of the various power-driven instrumentalities are coordinated by cams driven in unison and controlling the several instrumentalities.

These and other features of the invention, including details of construction and the arrangement of parts, will now be more particularly described with reference to the accompanying drawings, in which Fig. l is a side elevation of the upper portion of the machine;

Fig. 2 is a front elevation of the parts shown in Fi 1;

Fig. 3 is a side elevation of the horn-operating mechanism;

Fig. 4 is a plan view of the parts shown in Fig. 3;

Figs. 5, 6, and 7 are detail views of the sole edge gripping mechanism; and

Fig. 8 is a detail view of one of the cams.

Application March 14, 1940, Serial No. 323,957

The machine illustrated herein is pr v h an upstanding last pin II] for supporting a last L which, as shown, maybe of the hinged type and upon which, while in collapsed condition, has loosely been placed a shoe S. Theopposite edges of the forepart of the sole of the shoe are then clamped manually by the operator through a mechanism indicated generallyby the reference character I2. A power-driven mechanism is then I I set into motion, which causes the device I2 to draw the shoe rearwardly upon the lastand which then operates to cause a presser I4 to bear downwardly upon the heel seat of the shoe to urge the heel portion of the shoe on the last, while a pad l6 presses upwardly against the forepart of the 15 shoe upper to straighten or extend the last. A horn I8 is provided for guiding the heel end of the shoe upon the last.

The supporting structure of the machine comprises a standard 20, in which. is slidable for heightwise adjustment a column 22. Upon the upper portion of the column 22 isa head 24, which carries the operating instrumentalities of the machine.

The last pin I0 is threaded into a split socket 25 26 (Fig. 1) which is provided with a clamping bolt to enable the last" pin to be secured in any desired position of heightwise adjustment. Formed upon the last pin I0 is a knurled flange 28 which facilitates turning for heightwise adjustment, and 30 upon which rests the cone of the last. The socket 26 extends upwardly fromia slide 30, which is held by a pair of gibs 32 in a horizontal guideway formed in the head 24 and extending forwardly and rearwardly of the machine. Threaded into the forward end of the slide 30 is a screw 34 the unthreaded shank portion of which is freely'rotatable in a bearing 36 secured to the head 24. A pair of collars 38 pinned to the shank of'the screw 34 abut the opposite ends of the bearing to hold the screw against endwise movement. A hand wheel 40 facilitates turningof the screw to adjust the last pin lo'forwardly or'rearwardly.

The device l2 which grips the edges of the sole at the forepart of the shoe is carried by the forward ends of a pair of parallel rods 42 disposed on opposite sides of the shoe. The rearward end of each of the rods 42 telescopically engages a socket formed in an enlarged forward-end portion 44 of a rod 46 (Fig. 1). ,A pin 48 passes through one of several pairs of diametrically opposite holes in each of the socket portions 44 and through one of several diametrical holes formed in each of the rods 42 to hold the rods in desired surrounding each of the rods between the block and the collar 52 is a coil compression spring 54. The spring 54 urges. the rods rearwardly as far as permitted by the shoulders of the socket portions 44 engaging the blocks 50. Each of the blocks 50 is freely pivoted upon theupper end of a lever 58, the common axis of the'pivotal mounting of the blocks 50 being horizontal and transverse with respect to the machine. Each of the levers 58 is secured upon a shaft 60.journaled in the head 24 to serve as a fulcrum, the axis of this shaft being also horizontal and transverse with respect'tothe machine. Thetwo levers 58 and the shaft 60 turn as a unit, the levers being always parallel. T, One of the levers ;58 extends downwardly beyond its fulcrum and at its lower end carries a cam roll 62 through which the lever is operated by mechanism later to be described to swing thelevers 58 about the axis of the shaft 60 and thereby to cause the sole edge gripping device I 2 to be urged rearwardly.

The sole edge gripping device comprises a bar 64- (Figs. 5, 6 and'l) extending horizontally and transversely of the machine across the forward ends of the rods 42'. In a suitable bearing formed in the forward end of each of the rods 42 is mounted a pin 66, the two pins 66 being coaxial. Secured'upon each of the 'pins 66 is a block 68. In one 'of the blocks 68 is mounted a pin I0 having an unthreaded shank portion extending through the block 68 and having pinned upon its lower end portion a collar I2 (Fig. 6) for engaging the under surface ofthe'block 68 to hold the pin 70 against' endwise: movement. The upper portion of the pin I0 extends through a slot' I4 (Fig. 5) formed inthe endportionof the bar 64 and is threaded t receive a clamping nut II; which may be turned through a handle I8 to clamp the bar .64 in any desired position of transverse adjustm'ntwith respect to the rods 42. A pin secured in the bar 64 and extending slidably througha diametrical hole in the pin I0 holds the, pin 10, against turning. The other block 68 is provided with an upstanding unthreaded pin"'8'2"which extends'through a 'slot 84formed in the bar 64, the pin 82 being held against endwise movement relatively to the block and the bar by a head 86 upon its lower end and a rectangular block 88 secured upon its upper end portion. The block'88 is slidable in the slot 84 and has a shouldered top portion which rid-es on the uppersurface of the bar 64.

In the central portion of'thebar 64 is rigidly secured an upstanding pin00 upon which is rotatably mounted a sleeve 9I' (Figs. 5 and 6). Extending diametrically from the sleeve 9| in opposite relation to each other are a pair of arms 04 and 90 respectively, having rounded-bearing surfaces which engage openings formed in a pair of slides 98,and I00 respectively. The sleeve 0|" is turned by a handle 92 having a hub 93 which is rotatably mounted on;the pin 90 and which hasa'tbngue-and-slotcorinectioh 95 (Fig. 6') with the sleeve 9|. The slides 98 and I00 are slidable longitudinally along the bar 64, being guided by finished surfaces on the upper surface of theb'ar 64*and on the inner sides of a pair of lugs IOI extending upwardly from the marginal portions of the bar. The sleeve 9| serves as a bearing for the inner edges of both slides. A cover plate I02 secured by screws I04 to the lugs IOI retains the slides in their guideways. The cover plate I02 has an opening which serves as a bearing for the reduced lower portion of the hub 913. Secured upon the upper end of the pin 90 is a collar I03 for retaining the hub 93. Each of the slides 90 and I00 is provided with a hub I05 which extends downwardly through a longitudinal slot I08 in the bar 64, the hubs and their respective slots being positioned along the longitudinal center line of the bar 64 on opposite sides of the pin 90. The diameters of the hubs I05 are equal to the widths of the slots I08, allowing for clearance, and the slots thus assist in guiding the movements of the slides 98 and I00. Extending downwardly through each of the hubs I05 is a pin I06, and on the lower end of each of the. pins I 06 is pivotally mounted a clamping block IjI 0having a leather pad II2 adapted to engage an edge of the sole of the shoe S. The two pads engagethe opposite edges of the sole respectively and it is evident that turning of the handle 02 by the operator will tend to tighten or loosen the clamps on the edges of the sole, Secured to the under surface of a widened central portion I I3 of the bar 64 is a pad II4 which engages the shoe bottom to support. the sole against buckling in case of excessive clamping pressure upon its edges.

The edge gripping mechanism I2 may not always be necessary, as some shoes may fairly easily be drawn over the forepart of the last by hand. In such case the edge gripping mechanism may be latched up out of the way by a pair of plungers II6 (Fig; 2) which support the rods 42 respectively. These plungers are slidable in a pair of stationary brackets II8 (Figs. 1 and 2) secured upon parallel upwardly extending portions I20 of the head 24. The plungers have rounded ends for engagement with the rods 42 and are urged inwardly to latching position by a pair of leaf springs I22 secured to the brackets II8 respectively. These springs enable the plungers to yield when the edge gripping mechanism is forcibly snapped into or out of latching position by hand.

Thepad I6 which presses upwardly against the forepart of theshoe upper to straighten the last is mounted at the forward end of a frame member I24 (Figs. 1 and 2) having approximately the shape of a hollow rectangle. The frame'member I 24 is fulcrumed upon a pair of coaxial trunnion pins I26 mounted in the extensions I20 of the head24. The axis of the trunnions I26 extends horizontally and is transverse with respect to the machine. The pad I6 comprises a roll cushioned with rubber and idly rotatableto distribute wear over its entire periphery. Extending downwardly from the hollow frame I24 is an arm I28 through which the frame may be rocked. Pivotally connecting the lower end of the arm I28 with an operating lever I30 is a link I32. For guiding the lever I20 a pair of finished surfaces I33 (Fig. 1) are provided on the inner sides of the frame extensions I20. The lever I30 is loosely fulcrumed upon the shaft 60 and extends downwardly below the fulcrum. Upon the lower end of the lever I30 is mounted a cam roll I34 through which the lever I30 is operated by mechanism later to bedescribed. In the upper end portion of the lever I 30 is formed an arcuate slot I36 (Fig. 1) which is concentric with the pivotal connection of the link I32 with the arm I28. A pin I38 which may be clamped to the lever I30 in any desired position of adjustment along the slot I36 by a nut I40 constitutes the pivotal connection of the link I32 to the lever I30. By adjusting the pin I38 in the lever I30 the throw of the frame I24 may be increased or diminished.

The presser I4 which urges the heel seat of the shoe downwardly upon the last comprises a U-shaped rubber pad carried by a block I42 having a convex cylindrical surface which bears against a concave cylindrical surface formed in a support I44 having a pair of arcuate ears I46 and an upwardly extending shank I48. The block I42 is secured between the ears I46 by a pair of pins I50 extending from the block-through arcuate slots formed in the ears. The shank I48 extends upwardly through a bearing I54 carried in the upper forward end of an arm I56. Threaded into the bearing I54 is a bushing I58 through which the shank I4B'is freely slidable. A coil compression spring I60 surrounding the shank I48 is interposed between the support I44 and the lower end of the bushing I58. A knurled head I6I on the bushing I58 facilitates turning to adjust the compression of the spring I60. Threaded upon the upper end portion of the shank I48 is a nut I62 which limits the relative downward movement of the member I4 against the pressure of the spring I60. A pin I64 secured to the support I44 and freely slidable in a bearing I66 formed in the arm I54 preventsrotation of the pad I4 about the axis of the shank I46. The arm I56 is fulcrumed upon a pin I68 carried in the upper rearward portion of the frame I24. Secured upon opposite ends of the pin I88 are a pair of parallel rocker arms I10 which extend downwardly below the pin I68. Each of the arms II0 carries at its lower end a roll I'I2 (Fig. 2). Formed upon a side of each of the arms 58 is an arcuate guideway I'I4 which determines the path of movement of one of the rolls Ii2. When the arm 52 occupies its rearmost position the centers of the arcs of the guideways will lie in the axis of the pins I26.

The horn I8 has a tail I16 (Figs. 1 and 3) terminating in a pair of spaced ears "8 which are pivotally mounted upon a pin I80 to provide for free swinging movement of the horn about the pin. The pin I80 is secured by a set screw I82 in an eye hole formed in the end of a bar I84. A torsion spring I86 having one end secured in the pin I80 and the opposite end secured in one of J the ears I18 urges the horn in a counterclockwise direction as viewed in Figs. 1 and 3. A collar I88 formed on the rod I84 engages a member later to be described to limit rotation of the horn I8 under the influence of the spring I86, the normal operating position of the horn I16 being inclined about 30 upwardly from the axis of the bar I84. The bar I84 is slidably mounted in a guideway formed in a block I90 which, in turn, is slidably mounted in a support I92. A compression spring I94 surrounding the bar I84 and interposed between the collar I88 and the block I90 urges the bar I84 to the left to a stop position determined by the engagement of a collar I96, pinned upon the opposite end of the bar I84, with the block I90. The support I92 is pivotally mounted for free tilting movement upon a pin :488 secured in a stationary bracket 200 mounted upon "a rearward extension of the head 24. A block 202 surmounting the support I92 and secured thereupon retains-the slide block I90 in its upon the pin l98 is a lever 2| 0 having a gear sector 2I2 concentric with the pin I98. Secured in the outer end of the lever 2I0 is a pin 2 I4 upon which is pivotally mounted a block 2I6 which is slidably mounted for movement at right angles to that of the bar I84 in a guideway formed in the support I92. The pin 2I4 is loose enough to accommodate the slight arcuate movement, and extends through a slot 2I'I in the support I92. Formed in the block 2 I6 are rack teeth 2I8 adapted to mesh with corresponding rack teeth 220 formed in the under surface of the block I90. Secured in the block I92 and extending downwardly therefrom is a pin 222 surrounded by a spring 230 which is interposed between the under surface of the lever 2 I0 and a nut 232 threaded, for adjustment of the spring compression, upon the pin 222 and secured by a lock nut. Meshing with the gear segment 2I2 is a gear segment 234 formed upon a lever 236 which is mounted for free pivotal movement upon the shaft 60 and which, at its lower end, carries a cam roll 238 (Fig. 2). A cam which will later be described operates this mechanism and is arranged to maintain the lever 236 in an initial position such as to cause the lever 2I0 to bear downwardly and to compress the spring 230 while rotation of the block I92 in a clockwise direction is prevented by the engagement of a lug 240 (Fig. 4) on the support I92 with a stop 242 formed on the bracket 200.

Secured between a rearward extension of the ears H8 is a pin 244 (Fig. 3) upon which is pivotally mounted one end of a link 246, the opposite end of which link is pivotally connected through a pin 248 to a link 250. The opposite end of the link 250 is pivotally mounted for free swinging movement upon a pin 252 secured in the support I92. Tilting of the support I92 through the cam mechanism later to be described will bring the pin 248 downwardly. Extending across the path of the pin 248 in such downward movement is a pin 254 having at each end an eccentric 256 one of which eccentrics is shown in Fig. 3. The eccentrics 256 are mounted in the arms 58, respectively, and may be turned to effect adjustment of the pin 254 to vary the time of engagement by the pin 248. It is evident that downward swinging movement of the support I92 in causing the pin 248 to engage the pin 254 will straighten the links 246 and 250 and thereby rotate the horn in a clockwise direction about the pin I80. The links 246 and 250 are arranged to enable the pin 248 to pass upwardly just beyond dead center and thereby to insure against the horn I16 returning to its earlier position when the support I92 tilts upwardly again. To insure such return of the horn to normal position, there is provided a stop member 258 secured upon the bracket 200. The pin 248 will engage the stop 258 before the support I92 has completed its upward movement thereby drawing the pin 248 below dead center and enabling the spring I86 to swing the horn in a counterclockwise direction to its initial position. .It has already been stated that the collar I88 operates as a stop to limit rotation of the horn under the influence of the spring I86. The collar I88 performs this function by engaging the link 246 between the ears The cam mechanism, already mentioned, comprises a cam disc 260 (Figs. 1 and 2) having formed in its face a groove 262 in which is seated the roll I34 which operates to swing the frame I24 about the fulcrum I26, and also a cam disc 264 (Figs..8 and 2) having a pair of grooves 266 and 268 out in opposite faces respectively. Seated in the groove 266 is the cam roll-62 which operates the sole edge gripping device I2 and seated in the groove 268 is the cam roll 238 which operates the horn mechanism. The camdisc 260 and 264 are fixed upon a shaft 210 which is journaled in suitable bearings carried by the head 24.

The cam shaft 210 is driven through a one revolution clutch from a gear 212 (Figs. 1 and 2) mounted for free rotation on the shaft 210 and continuously driven by a gear 214 formed on the hub of a pulley 216. The pulley 216 is mounted for free rotation on the shaft 68, and is driven through a belt 218 from any convenient source of power. The one revolution clutch above-mentioned may be of any well-known type, and comprises a treadle rod 238 and a tripping lever 282. A spring 284 normally holds up the treadle (not shown).

In operating the machine, the shoe S is first drawn over the last L byhand as far as convenient and the last is then mounted on the last pin I0. It is desirable to bring the hinge of the last into substantially coaxial relation with the trunnion pins I26 and this can be accomplished by turning the wheel 48 and also by turning the knurled head 28. The operator then takes the edge gripping mechanism I2, which he pulls down from its out-of-the-way position and clamps the edges of the sole of the shoe between the gripping members H0. Such clamping is accomplished by turning the handle 92 manually with as great or little pressure as may be desired. The operator thereupon depresses the treadle to initiate the automatic operation of the machine, meanwhile holding the handle 92 in clamping position. The first operation performed by the cam mechanism is to rock the levers 58 in clockwise direction, thereby compressingthe springs 54 and causing the edge gripping mechanism to draw the forepart of the shoe completely on the last. In the case of shoes which fit the last somewhat loosely, it may sometimes be more convenient to perform this part of the operation by hand, leaving the edge gripping mechanism I2 in its out-of-the-way position. As the upper portion of the lever 58 swings to the right, as seen in Fig. 1, the rolls I12 will be moved in the same direction rocking the arm I56 in ,a counterclockwise direction and bringing the heel seat pad I4 down close to the heel seat of the shoe. Further rotation of the cam shaft will not for the time being change the position of the arms 58 but will rock the arm I80 in a counterclockwise direction. This will operate through the link I32 to swing the frame I24 in a clockwise direction about the trunnion I26, causing the pad IE to push upwardly against the shoe upper to straighten the last while the heel seat pad II4 pushes downwardly to urge the heel portion of the shoe upon the last. The movement of the pad I6 is s fficient to start the straightening of the last and to overcome the initial tendency of the last mechanism to hold the last in broken condition. Most lasts will then snap into straightened position as a result of the action of the internal mechanism with which they are provided. The pad I6 does not follow the forepart of the shoe and the last throughout their complete straightening movement, however, but stops to provide a sufficient clearance to insure against damaging the last. This same swinging movement of the frame I24 will cause the heel seat pad I4 to be brought down far enough to urge the heel seat of the shoe against the last while the rolls I12 travel down the arcuate guideways I14 of the now stationary arms 58. These guideways, being concentric with the fulcrum pins I26, hold the arm I56 in fixed relation to the swinging frame I24. As the pad I4 presses downwardly against the heel seat, the spring I60 may yield to accommodate excess movement. The cylindrical bearing surfaces between the block I42 and the support I44 enable the pad to assume whatever angle may be imposed upon it by engagement with the shoe.

When the last is being mounted upon the last pin, the heel end of the last will push the horn l8 and its associated mechanism back against the pressure of the weak spring 204 without changing the 30 angle of the horn which is maintained by the relatively strong torsion spring I86. The horn will thus assume its proper initial position, regardless of the length of the last. As the heel portion of the shoe is urged downwardly, it will come outside of the end of the horn. Now as the heel portion of the shoe descends, the cam mechanism will rock the arm 2I0 in a counterclockwise direction, as seen in Fig. 3, enabling the spring 230 to cause the rack teeth 2IB to engage the rack teeth 220 and lock the slide I90 in its guideway in the block I92. Further rotation of the arm 2") will swing the housing I92 in a counterclockwise direction, moving downwardly the pin I80 which supports the horn in an are about the axis of the pin I98. This movement will draw the horn downwardly between the shoe and the last while the torsion spring I86 will yield to enable the horn to rock about the corner of the last. i As the horn is gripped tightly between the shoe and the last, the spring I94 may yield to enable the horn to assume whatever angle is imposed upon it by the shoe and the last. Continued movement of the cam mechanism thus withdraws the horn from between the shoe and the last and brings the pin 248 into contact with the pin 254. The arms 58 which support the pin 254 are at this time stationary. The toggle links 246 and 250 are thereupon straightened and brought slightly beyond dead center to swing the horn into asubstantially upright position out of the way of the shoe. Continued rotation of the cam 264 then causes the block I 92 to swing in a clockwise direction and to return to its initial position atthe later stages at which movement the pin 248 engages the stop 258 to break the toggle formed by the links 246 and 250, whereupon the torsion spring I86 returns the horn I8 to its initial angular position. During this time, the rotation of the cams serves also to restore the frame I24 and the pad I4 to their initial positions .and also the arms 58. The automatic clutch mechanism then operates to bring the machine to rest ready for another operation.

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

1. A relasting machine comprising a. support for the heel end of a hinged last, means for urging a shoe rearwardly on'the last, means for exerting pressure upon the forepart of the shoe to straighten the last, and means for exerting pressure upon the heel end of the shoe bottom to urge the heel end of the shoe upon the last.

2. A relasting machine comprising a last pin for supporting the heel end of a hinged last, means for'urging the forepart of a shoe rearwardly on the last, a lever fulcrumed upon an axis which is substantially transverse with. respect to the last, a member on one end of said leverengageable with the forepart ofthe shoe upper, a member on the opposite end of said lever engageablewith, the heel end of the shoe bottom, and means for swinging said lever to cause the first mentioned shoe-engaging member to press against the shoe to straighten the last and to cause the second mentioned shoe-engaging member to urge the heel end of the shoe upon the last.

3. A relasting machine comprising a support for the heel end of a hinged last, said last being partially inserted in a shoe, a lever fulcrumed for tilting movement about an axis which'is substantially transverse with respect to the last,

members on the ends of said lever engageable i with the forepart of the shoe upper and with the heel end of the shoe bottom respectively, and means for swinging said lever to cause the forepart-engageable member to straighten the last and to' cause the heel-end-engageable member to urge the heel end of the shoe upon the last.

4. A relasting machine comprising a last pin for supporting the heel end of a hinged last, said last being partially inserted in a shoe, a lever, a fulcrum for said lever substantially coaxial with the hinge of the last on said last pin, members on the ends of said lever engageable with the forepart of the shoe upper and with the heel end of the shoe bottom respectively, and means for swinging said lever about said fulcrum to cause the forepart-engageable member to straighten the last and to cause the heel-end-engageable member to urge the heel end of the shoe upon the last.

5. A relasting machine comprising a support for the heel end of a hinged last, said last being partially inserted in a shoe, a lever'fulcrumed for tilting movement about an axis which is substantially transverse with respect to the last, a member on one end of said lever engageable' with the forepart of the shoe upper, a member engageable with the heel end of the shoe bottom and pivotally mounted upon the opposite end of said lever for swinging movement from an outof-the-way position into an operative position over the heel end of the shoe bottom, means for holding said heel-end-engageable member in said operative position on said lever, and ,meansfor swinging said lever to cause the forepart-engageable member to straighten the last and to cause the heel-end-engageable member to urge the heel end of the shoe upon the last. l

6. A relasting machine comprising an upright last pin for supporting in inverted position the heel end of a hinged last, said last being partially inserted in a shoe, a lever fulcrumed for tilting movement about an axis which is substantially transverse with respect to the last, a member on one end of said lever engageable with the forepart of the shoe upper, a member pivotally mounted upon the opposite end of said lever and engageable with the heel end of the shoe bottom, means for swinging said heel-end-engageable member about its pivotal mounting from an outof-the-way position into an operative position over 'the heel endof the shoe bottom, and means operable in timed relation to the first-mentioned swinging means for swinging said lever to cause the forepart-engageable member to straighten the last, a member on one end of said lever' engageable with the forepart of the shoe upper, a member pivotally mounted upon the oppositeend of saidv lever and engageable with the heel end of the shoe bottom, a pair of cams connected for rotation in; unison about a common axis, a connection operated by one of said cams for swinging said heel-engageable member about'its pivotal mounting from an out-of-the-way position into an operative position over the heelend of the shoe bottom, and a connection operated by theother cam for swinging said lever to cause the forepart-engageable member to straighten the last and to cause the heel-end-engageable member to urge the heel end of the. shoe upon the last.

8. A relasting machine comprising a support for a last partially inserted in a shoe a member engageable with the heelend of the shoe bottom, a carrier upon which said shoe-engageable member is pivotally mounted for movement from an out-of-the-way. position into an operative position over the heel end of the shoe bottom, means for holding saidmember in said operative position, and means for moving said carrier to cause the shoe-engageable member to urge the heel end of the shoe upon the last. I I

9. A relasting machine comprising a support for a last partially inserted ina shoe, a member engageable with the heel end of the shoe bottom,

a carrier upon which said shoe-engageable mem beris pivotallymounted for movement fromlan out-of-the-way position into an operative posi: tion over the heel end of the shoe,bottom,.ca'm operated mechanism for moving into, and for holding in operative position said shoe-engage able member, and cam operated mechanism for moving said carrier to cause the shoe-engageab-le member vto urge the heel end of shoevupori the lastufl. r it 10. A relastingmachine comprising ,a support for ,a lastpartially inserted in a shoe, a member engageable with the heel end of the shoe bottom, a lever upon which said shoe-engageable member is pivotally mounted formovement from an outof-the-Way position into an operative position over the heel end 1of,the shoev bottom, aiulcrum for said lever, said lever having an arm whereby thelever may be swung about its-fulcrum, and said shoe-engageable member having an arm whereby the shoe-engageable member "may be swung about its pivotal connectidn to said lever, a pair of driven cams, and driving connections between said cams and said respective-arms for swinging said shoe-'engageable member and for swinging said lever to cause the shoe eng'ageable member 'to urge the heel end of the shoe upon the last. -'v 11. A relasting machine comprising'a last pin for supporting ahinged last partially inserted in a'shoe, amernber engageable with the bottom of the heel end of the shoe, a lever upon which said shoe-engageable member is mounted, a fulcrum for said lever substantially coaxial with the hinge of the last, a driven cam, and connections through which said cam swings said lever to cause said shoe-engageable ,member to press against the shoe bottom to urge the heel portion of the shoe upon the last.

12. A relasting machine comprising a support for a hinged last, a member engageable with the upper of the forepart of a shoe on the last, a driven cam, and connections through which said cam causes said member to press against the forepart of the shoe to straighten the last,

13. A relasting machine comprising a last pin for supporting a hinged last, a member engageable with the upper of the forepart of a shoe on the last, a lever upon which said shoe-engage able member is mounted, a fulcrum for said 'lever' substantially coaxial with the hinge of said last, a driven cam, and connections through which said cam swings said lever to cause said shoeengageable member to press against the forepart of the shoe to straighten the last.

14. A relasting machine comprising a support for a last partially inserted in a shoe, a member frictionally engageable with the shoe on said I last, a device constructed and arranged to enable the operator to press said member against the shoe, and power-driven means for moving said member while thus pressed against the shoe to urge the shoe upon the last.

15. A relasting machine comprising a support for a last partially inserted in a shoe, a pair of members frictionally engageable with a portion of the shoe on said last, a device constructed and arranged to enable the operator to exert a clamping pressure between said members upon said portion of the shoe, and power driven means for moving said members while thus clamped by the operator to urge the shoe upon the last.

16. A relasting machine comprising a last pin for supporting a last, a pair of friction members engageable with the opposite edges respectively of the sole of a shoe on said last, a device constructed and arranged to enable the operator to exert clamping pressure between said members upon the sole, and power driven means for moving rearwardly said members thus clamped to urge the forepart of the shoe rearwardly upon the last.

17. A relasting machine comprising a last pin for supporting a last, a pair of friction members engageable with the opposite edges respectively of the sole of a shoe on said last, a pair of slides upon which said friction members are respectively mounted, a carrier in which said slides are mounted for movement transversely of the shoe, a device constructed and arranged to enable the operator to move said slides in said carrier to clamp the sole between said friction members, and means for moving said carrier rearwardly of the shoe to cause the friction members through their clamping engagement with the sole to urge the forepart of the shoe rearwardly upon the last.

18. A relasting machine comprising a support for a last, a pair of friction members engageable with the opposite edges respectively of the sole of a shoe on said last, a device for clamping the sole between said friction members, mechanism for moving said device rearwardly to cause the friction members to urge the forepart of the shoe upon the last, and a connection between said device and said mechanism constructed and arranged to enable the device to move freely laterally of the shoe and thereby to center itself when the friction members are clamped upon the sole.

19. A relasting machine comprising a support for a last, a pair of friction members engageable with the opposite edges respectively of the sole of a shoe on :said last, a device for clamping the sole between said friction members, a pair of rods connected to said device and extending rearwardlytherefrom upon opposite sides of the shoe, a pivotally mounted arm, a driving connection between the rear ends of said rods and said arm, and a driven cam constructed and arranged to swing said arm to move the device rearwardly, thereby causing the friction members to urge the forepart of the shoe upon the last.

20. A relasting machine comprising a support for a last, a pair of friction members engageable with the opposite edges respectively of the sole of a shoe on said last, a device for clamping the solebetween said friction members, a pair of parallel rods connected to said device and extending rearwardly therefrom upon opposite sides of the shoe, a pair of blocks in which said rods are slidably mounted, a collar on the rearward end of each rod, a coil compression spring surrounding each rod and interposed between the block and the collar of that rod, a pivotally mounted arm, coaxial pivotal connections between said blocksandsaid arm to enable the rods to swing heightwise, and a cam constructed and arranged to swing said arm to move the device rearwardly to cause the friction members to urge the forepart of the shoe upon the last.

21. A relasting machine comprising a support for a last partially inserted in a shoe, a device engageable with the *forepart of the shoe, a member engageable with the heel end of the shoe bottom, a horn interposable between the heel end of the last and the interior of the shoe, three cams driven in timed relation to each other, means operated by one of said cams for causing said forepart engageable device to urge the forepart of the shoe rearwardly on the last, means operated by another of said cams for causing said heel-end-engageable member to press the heel end of the shoe upon the last, and means operated by the remaining cam for rocking the horn about the heel end of the last to guide the heel end of the shoe upon the last.

22. A relasting machine comprising a support for a last partially inserted in a shoe, two devices engageable with the forepart of a shoe, two cams driven in timed relation to each other, means operated by one of said cams to cause one of said devices to urge the forepart of the shoe rearwardly upon the last, and means operated by the other cam to cause the other device to press against the ,forepart of the shoe to straighten the last. i

23. A relasting machine comprising a support v for the heel end of a hinged last, said last being partiallyinserted in a shoe, a member engageable with the forepart of a shoe, a member engageable with the heel portion of the shoe, a driven cam, and means operated by said cam for causing said forepart engageable member to press against the forepart of the shoe to straighten the last and for causing the heel-portionengageablemember to urge the heel portion of the shoe upon the last.

24. A relasting machine comprising a support for a last partially inserted in a shoe, a horn for guiding the heel end of the shoe upon the last, a carrier for said horn, a guide in which said carrier is slidably mounted, a spring urging said carrier in said guide to hold the horn yieldingly against the last, and means for moving said carrier to cause the horn to rock around the heel end of the last to guide the heel end of the shoe upon the last.

25. In a relasting machine, a horn for guiding the heel end of a shoe over a last, yieldable means for holding said horn in a predetermined angular position, and yieldable means for urging said horn against the heel end of the last, said holding means being stronger than said urging means to insure the horn maintaining said angular position upon engaging the last.

26. In a relasting machine, a support for a last, a horn, a carrier upon which said horn is pivotally mounted, yieldable means for holding said horn in a predetermined angular position with respect to said carrier, yieldable means acting upon said carrier to urge the horn against the heel end of the last to determine an initial operating position of the horn, said urging means being weaker than said holding means to insure the horn maintaining said angular position in said initial operating position, and means for moving said carrier to cause the horn to perform an operative movement to guide a shoe upon the last.

27. In a relasting machine, a support for a last, a horn, a slide upon which said horn is pivotally mounted, a guide for said slide, yieldable means for holding said horn in a predetermined angularposition with respect to said slide, yieldable means acting upon said slide to urge the horn into an initial operating position wherein the horn engages the heel end of the last, said holding means being stronger than said urging means to insure said horn maintainingsaid angular position upon engaging the last, means for locking said slide in said guide when the horn is in said initial operating position, and means acting upon said guide to cause the horn to perform an operative movement in guiding a shoe upon the last.

28. In a relasting machine, a horn, a pivotal mounting for said horn, yieldable means for holding said horn in a predetermined angular position about said mounting, a contractile support for said pivotal mounting, a spring for resisting contraction of said support, a fulcrum upon which said support is pivotally mounted, and means for swinging said support about said fulcrum to cause said horn to perform an operative movement in in guiding a shoe 'upon a last, and a spring for urging said slide along said guideway to hold the horn against the last.

30. In a relasting machine, a horn, yieldable means for holding said horn in a predetermined angular position, means for causing said horn to perform an operative movement in guiding a shoe upon a last, and means for swinging said horn away from said angular position in opposition to said holding means to enable the horn to perform a return movement without striking the last or shoe.

31. In a relasting machine, a support for a last, a horn for guiding the heel end of a shoe over the last, a support upon which said horn is pivotally mounted for swinging movement, a spring arranged to swing said horn about said support, a stop for holding said horn at a normal angular position under the influence of said spring, means for operating said support to cause the horn to perform a guiding movement in the course of a relasting operation and for then returning the horn toinitial opposition, during which guiding movement said spring may yield, and means for swinging said horn in opposition to said spring to prevent the horn from striking the last or shoe in its return movement.

- JOHN T. LANCASTER.

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