US2437696A - Machine for operating on shoes - Google Patents

Machine for operating on shoes Download PDF

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US2437696A
US2437696A US636289A US63628945A US2437696A US 2437696 A US2437696 A US 2437696A US 636289 A US636289 A US 636289A US 63628945 A US63628945 A US 63628945A US 2437696 A US2437696 A US 2437696A
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Prior art keywords
shoe
toe
machine
cutter
presser
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US636289A
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Jorgensen Bernhardt
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United Shoe Machinery Corp
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United Shoe Machinery Corp
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    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/12Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last
    • A43D21/127Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last with wipers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00Metal working
    • Y10S29/098Rotating, reciprocating or oscillating cleaner

Definitions

  • This invention relates to machines for operating on shoes, and is herein shown as applied to a toe-lasting machine constructed generally as disclosed in United States Letters Patent No. 2,- 324,509, granted on July 20, 1943, on an application of mine, but modified in some respects as further disclosed in other Letters Patent hereinafter mentioned. It is to be understood, however, that in various novel aspects the invention is not limited to the illustrative embodiment.
  • the above-mentioned lasting machine is a fluid-operated machine including wipers which in the course of a cycle of automatic operations of the machine wipe the lasting margin of the toe end of the upper inwardly over an insole where it is secured to the insole by cement.
  • the machine comes automatically to a stop to permit the wipers to remain for a few seconds in pressure-applying relation to the overwiped margin of the upper while the cement is setting, after which it is again started and completes its cycle, releasing the shoe.
  • One object of this invention is to increase the output of the machine by reducing the time required for the wipers thus to dwell on the margin of theupper.
  • novel means to which the shoe is presented by the operator immediately after the toe-lasting operation for further pressing the margin of the upper on the insole until the cement has more firmlyv set comprises a pressing plate formed to overlie the marginal portion only of the shoe bottom, and a shoe rest arranged to engage the top of the forepart of the shoe and movable while the operator supports the shoe to force it against the plate, the latter being flexible to permit it to conform to the contour of the shoe bottom.
  • the shoe rest is thus operated in response to the presentation of the shoe to the plate by fluid obtained from an accumulator which is charged by the fluid-pressure system of the lasting machine, the shoe when thus presented closing an electrical switch which controls the circuit of a valveoperating solenoid.
  • This circuit is broken automatically by the next cycle of operations of the lasting machine near the end of the cycle to cause the shoe rest to release the shoe.
  • mechanism is provided for subjecting it automatically to closing force independently of the shoe.
  • the invention further provides novel means arranged to cooperate with the above-mentioned pressing plate to accomplish that result.
  • a cutter is moved bodily lengthwise of the shoe along the shoe bottom toward the end of the toe to trim oif surplus upper material extending beyond the plate, the cutter being thus operated by a cutter support which swings about an axis extending widthwise of the shoe but being movable relatively to the support and held yieldingly in contact with the plate in the uppertrimming operation.
  • Fig. 1 is a view in front elevation of the greater portion of the toe-lasting machine to which the invention is herein shown as applied, parts being broken away;
  • Fig. 2 is a plan view on an enlarged scale of a portion of the structure shown at the lower lefthand side of Fi 1, the frame of the machine being sectioned;
  • Fig. 3 is a section on the line IIIIH of Fig. 2;
  • Fig. 4 is a plan view. on an enlarged scale of a portion of the machine, with parts broken away;
  • Fig. 5 is an enlarged View in elevation, from the front of the machine, of the toe-pressing and trimming attachment shown at the left-hand side of Fig. 1;
  • Fig. '6 is a view mainly in Ieft-handside elevation of the toe-pressing and trimming means
  • Fig. 7 1s a section on the line VII-VII of i .5;
  • Fig. 8 is a section on the line VIII-VIII of Fig. 6, with parts broken away;
  • Fig. 9 is a view similar to Fig. 8, but showing also a portion of the toe-trimming means in the course of its action on a shoe;
  • Fig. 10 is a view in vertical section of a portion of the toe-pressing and trimming means, with the trimming means-positioned: as iii-Fig. 9;
  • Fig. 11 is a vertical section at right angles to that of Fig. 10, showing the parts in the same positions;
  • Fig. 12 is a view similartoFig/IO with:the parts as they appear after the beginning of the return movement of the trimmingrcutter;
  • Fig. 13 is mainly a vertical sectional view showing a valve involved in the operation of the trimming means and the valve-operating mechanism;
  • Fig. 14 is a diagrammatic view of the fluidpressure generating and controlling means with which the lasting machine is provided.
  • the toe-lasting machine herein shown is provided with a plurality of fluid-operated instrumentalities which operateon the shoe in the course of a cycle of power operations of the machine.
  • the shoe is presented by the operator with the bottom'of the forepart of the insole in engagement with a plate 2 (Fig. 1) provided with a spur'4 which enters an indentation previously formed in the insole to assist in positioning the'shoe in proper relation to the lasting instrumentalities.
  • a plate 2 Fig. 1
  • spur'4 which enters an indentation previously formed in the insole to assist in positioning the'shoe in proper relation to the lasting instrumentalities.
  • the shoe is clamped against the plate'2 by the upward movement ofa toe rest 6.
  • a toe former 8 which wipes the toe end of the upper heightwise-of the last andapair of wipers IE! which wipe the lasting margin of the toe end'of the upper'inwardly over an'insole on Prior to such operation of the wipers, however, the margin of all but the outer layer of the toe-end portion of the upper materials is trimmed off by trimming meansidentifiedgenerally by the reference character l2 (Fig. 4) and hot thermoplastic cement is applied to the-toe end of the shoe for securing the margin of the upper to the insole, the cement-applying means 'being identified generally by the reference'character Hi.
  • the trimming means and the cementapplying means are supported .on' a common carrier l6 which is mounted to swing about a vertical axis to carry the cement-applying means into shoe after the operation ofthe thereon, such swinging movement of the carrier being effected by a piston l8 movable in a cylinder at to which operating fluid- .is admitted through a pipe line 22. .
  • a piston l8 movable in a cylinder at to which operating fluid- .is admitted through a pipe line 22.
  • the machine After the marginof the upper has been wiped inwardly over the insole by the wipers H] the machine to a stop to cause the wipers toremain a few seconds in pressure-applying .relation to the upper while the cement is setting. Thereafter the machine is again started and completes its cycle, releasing the shoe.
  • the wipers l0 instrumentalities with which the machine is provided, the several devices being supplied with operating 25, there are provided fluid, preferably oil,
  • the valve is a sleeve valve mounted to slide ion'attube 28 in'communication at one end with the manifold 24 and at the other end with the therein a partition 30 which'dividesone end portion thereof from the other.
  • Formed in the valve is an annular chamber 35 through which the ports 32 are caused to communicate with the ports 34.
  • toadmit fiuid'from-themanifold 24 to the pipe valve is moved toward the left which it is shown in Fig. 13.
  • The-valve is controlled through an arm 38 pivotally mounted at lfl on a bracketAZ, a spring 44 line 22 .when the being connected'to this arm to maintain the valve normally in positiontc prevent communication between themanifold. and the'pipe line 22, as shown.
  • the ports are uncovered at that time to permit exhaust of fluid from the pipe line 22 back-to areservoir or sump 46.
  • the arm 38 is swung into position'to cause the valve to admit lever 63 also pivoted at 40 on the bracket42 and arranged thus to act on the arm'38 through a small compression spring
  • the lever 48 is operatedat the proper time in the cycle by one of a plurality of fingers 52 mounted on a rotatable drum 54 like that/shown in Letters Patent No. 2,337,558,'granted on December 28, 1943, on an application of mine, the finger being arranged to engage aroll56 onone end of thezlever.
  • a latch 58 .pivotally mounted thereon is carried into position to be a shoulder 62 on the bracket 42 to retain the valve 25 in the position to which it is moved, the spring 60 being connected to an arm'fid which isin fixed relation to they latch.
  • another-ofthe fingers'52 onthe drum 5A acts on from over the shoulder 62, whereupon the'spring 44 returns the valve 26 to its initialposition.
  • the drum 54 is rotated-by fluid admitted to a cylinder-'66 (Fig. .14) from the manifold 24 and acting on -apistontfiflconnected to the drum, the
  • valve 10 movable by'the'operator'thus to start the cycle of operations'of the machine.
  • the cycle of operations corresponds thefluid into the manifold I6.
  • the valve 13 is moved by the the outlet from the manifold before the valve 10 is operat d to start the machine;whereuponpressure is developed in the manifold and the excess fluid delivered by the pumpreturns-to the sump 46 past a spring-controlled relief valve which determines the pressure in the manifold.
  • the valve 18 is returned automatically to its initial position to cause the pressure in the manifold to'fall substantially to zero.
  • the machine herein shown may be assumed to be constructed substantially as disclosed in the previously mentioned Letters Patent.
  • Letters Patent No. 2,420,665 granted on May 29, 1947, on an application of mine, it has attached to its right-hand side mechanism indi cated generally by the reference character 82 (Fig. 1) for providing the insole with an indentation to receive the previously mentioned shoepositioning spur 4, the shoe being presented to this mechanism before it is presented to the lasting instrumentalities.
  • the indenting mechanism is operated by fluid delivered by the pump I2.
  • an accumulator 84 a accumulator 84 (Fig.
  • a toe-pressing and trimming attachment identified generally in Figs. 1 and 4 by the reference character 08.
  • One of the functions of this attachment is to apply pressure to the cement-lasted marginal portion of the toe end of the upper immediately after removal of the shoe from the lasting instrumentalities to hold the upper on the insole until the cement has more firmly set, thus permitting the time during which the upper is held under pressure by the lasting wipers I to be shortened with a consequent increase in the output of the lasting machine.
  • the attachment includes a presser consisting of a plate !00 (Figs.
  • the plate 8 and 10) arranged to engage the lasted marginal portion of the upper overlying the insole, the plate having therein a recess I02 so that it will extend inward only over the margin of the shoe bottom about the end and along the sides of the toe.
  • the plate is flexible to permit it to bend and thus to conform to the contour of the shoe bottom for applying effective pressure to all portions of the upper beneath it. Beyond the end of the toe and also along the opposite side margins of the plate the latter is thickened, its side marginal portions being inserted in horizontal slots I04 (Fig. 11) formed in supporting members I 00 which are fast on opposite side frame plates I08 of the attachment (Fig.
  • the plate I00 is held firmly in the slots I04 by a setscrew H0.
  • the shoe is presented by the operator to receive the pressure of the plate by moving it lengthwise to a position where the marginal portion of the toe end of the upper overlying the insole is under the plate.
  • two tapered rolls II2 mounted to turn on studs 4 which are supported on the front ends of leaf springs IIG secured at their rear ends by screws II8 on the tops of the members I06, the rolls 'being arranged to engage respectively the opposite side portions of the shoe bottom. Initially the lower faces of the rolls are somewhat lower than the plate, as shown in Fig.
  • leaf springs II6 are yieldable to permit the rolls to be lifted by the shoe when the shoe is forced upward against the plate.
  • leaf springs I20 To position the shoe laterally in proper relation to the recess I02 in the plate I00, there are provided two leaf springs I20 arranged to extend rearwardly in converging relation to each other to receive and to centralize the toe end of the shoe between them by their engagement with the sides of the toe. Each of these springs is secured against the inner vertical face of one of the members I06 by the flanged inner end of a sleeve I22 (Fig.
  • Fluid is admitted to the lower end of the cylinder I38 and is later exhausted therefrom through a port I52 in the casting I40 under control of a horizontal slide valve I54 in the casting, this valve having an annular recess I56 in communication at all times with the port I 52.
  • this recess is in communication alsowith an exhaust port I58 from which a pipe I60 leads to a point over the sump 46 to permit return of the fluid to the sump.
  • Operating fluid is admitted to the cylinder I38 to cause the shoe to be forced up against the plate I00 by movement of the valve I54 to a position in which an inlet port I62 in the casting "I40, instead of the exhaust port I58, is in communication with the port I52. Since the cycle of operations of the lasting machine has been completed at the time when the shoe 'is forced up against agar-no.6
  • asolenoid I66 having, an armature I08 towhich are pivotally connected the rear ends of tworods I10 extending forwardly; at opposite sides respectively of the casting I40, At their front ends these rods. extend throughhlocks I12. (Figs. 5 and '7) which are pivotally mounted. onupwardlyextending arms I14 a forked, lever I.I6-. pivotallymounted at its lower: endonrthe head of a stud. I18. in the frame plate I42. This. lever is connected between its upper-andlowerendsto.thefront end of the valve I54: by aipin I80.- extending through slotsv I82 in thelever. The rods I 1 0-al so extend through.
  • the plunger is-urged-in a forward direction by a spring Mil-engaging a shoulder thereon.
  • a reduced rearwardly extending portion .of the plunger is in engagement with one end of; apin- 2,I2 the other end of which bears against a resiliently-flexible member 214 carrying oneof the contact elements of-a switch 2I6 in the switohbox 204,- Accordingly, pressure of the .toe-end-.; ce o e h e.
  • arod- 226 extends o w r ly h oughe op nine. in a memher 220 threaded in the, piston I35.
  • a compression spring 232 Between this member and a collar 2.30,fast.on the rod 226. is. a compression spring 232., When the piston, therefore, is moved upwardly to, cause the shoe rest I34 to force the shoe. against thepl te I00. the spring 232'is compressed sothatit aotsthrough thebellcrank lever 222 on the plunger. 200.. to. hold the of pressure toe end of the, shoeonthe, Dad 202.
  • the pressing plate IEIii is accordingly-solormed and the shoe is.
  • This; mechanism includes a trimming knife or cutter 234 mounted ona holder 236 which is supported by downwardly and forwardly extending'arms 23B of.
  • two bell-crank levers 240 mounted to swing about a rod 242 supported by the frame plates I08 and extending widthwise of the shoe, the two bell-crank levers being rigidly connected together by a web 244 To operate the cutter 234 the bell-crank levers are swung in a clockwise direction with reference to Fig.
  • the holder 236 is pivotally mounted on studs 246 (Fig. 5) on the ends of the arms 238' to swing relatively to the arms about an axis extending widthwise of the shoe and it is engaged by two spring-pressed plungers 248 carried by the arms 238, these plungers tending to swing it in a counterclockwise direction and holding it initially in contact wi lus 2. .9 on. th arm as. shown i i 6.
  • the bell-crank levers 240 begin their operaiv sw n in mo eme th utter 3 has a u hen comp nent. o ownwar m veme oward the.
  • The'limit of the upward movement of the piston and of the operative movement of the cutter is further determined by engagement of the pin with the cylinder at the upper ends of the slots.
  • the piston 260 is operated at a predetermined time in the next cycle of operations of the lasting machine after the previously lasted shoe has been clamped against the plate I by the toe rest I34,
  • the cutter 234 is inserted in the holder 236 by sliding it into grooves 214 (Fig. formed'in the holder. Its position with respect to the holder is determined by a screw 216 (Fig. which is threaded in the holder and is provided with a flange 218 extending into a groove in the cutter. By means of this screw the cutter may be adjusted along the grooves to vary the position of its cutting edge relatively to the previously mentioned fingers 252 (Fig. 5).
  • an ejector 286 (Fig. 10). As shown further in Fig. 9, this ejector includes an inclined plate 282 positioned normally with its lower edge in engagement with the top of the cutter 234 in a recess in the holder 236. Extending from this plate is an arm 284 pivotally mounted on a pin 286 carried by an arm 288 which is mounted to swing about the previously mentioned rod 242 between the bell-crank levers 240. A spring-pressed plunger 290 in the arm 288 engages the arm 284 and holds the plate 282 down on the cutter 234.
  • the arm 238 is connected by a link 292 to one arm 294 of a bell-crank lever 296 mounted to swing about a rod 298 which provides the connection between the arms 254 and the links 256.
  • a spring 300 connected to the arm 294 and to a pin 302 in the web 244 holds the arm 288 initially in a position determined by the engagement of a screw 304 mounted in a lug 306 on the hub of the arm with the web 244.
  • the bell-crank lever 286 By the cutteroperating movement of the bell-crank levers 240 the bell-crank lever 286 is carried upwardly to a osition where an arm 308 thereof extends over the upper end of a pawl 3
  • a spring-pressed pin 3I6 in the block holds the pawl normally in a position determined by engagement of a tail portion 3; thereof with a screw 320 in the block. Accordingly, in response to the return movement of the bell-crank levers 240 after the trimming operation the bell-crank lever 296 is swung by the pawl 3l0 in a clockwise direction (Fig.
  • a trough 322 (Fig. 8) arranged to receive it.
  • This trough includes .a horizontal plate 324 secured to the frame plates I06 in the same plane as the presser plate I00, and upstanding side plates 326 the front end portions of which are curved outwardly away from each other and extend over the presser plate I80.
  • the trough 322 extends rearwardly and downwardly to a position over the top of a receptacle (not shown) with which the machine is provided to receive the waste material removed from the upper by the trimming means I 2 (Fig.
  • the shoe is released by the shoe rest I34 near the end of the cycle of operations of the lasting machine.
  • a ring 328 (Figs. 2 and 3) carrying a screw 330 the head of which is arranged to engage a lever 332 pivotally mountedat 334 on a bracket 336 fast on the frame of the machine, the bracket supporting a switch box 337.
  • the lever 332 engages a plunger 338 movable in the switch box and bearing against a resiliently flexible member 340 which carries one of the con,- tact elements of a switch 342 in the circuit of the solenoid I 66.
  • the switch is operated to break the circuit by the action of a screw 330 on the lever 332, whereupon the valve I54 (Fig.
  • a shoe receiver 344 comprising a pair of downwardly inclined rods 346 secured at their upper ends to the frame plates I08, the rods having thereon diverging wings 348 between which the shoe is receivedand being provided at their lower ends with a pad 350 for engaging the heel-end face of the shoe.
  • valve 26 Fig. 13
  • This means comprises a wire 352 guided by a flexible cable 354 and connected at one end to the valve-operatinglever 48, the other end of the wire being connected to a pin 356 slidingly movable in a front frameplate 358 and having fast on its outer end a knob 366.
  • a spring 362 mounted between the frame plate and a member 364 fast on the pin 356 holds the knob 366 normally against the front of the frame plate.
  • a presser constructed and arranged to engage the upper on the bottom of the toe-end portion of a 'shoe presented thereto after the toe-lasting operation, said presser being formed to extend inwardly over the marginal portion only of the shoe bottom about the end and along the sides.
  • a presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser comprising a plate formed to extend inwardly over the marginal portion only of the shoe bottom about the end and along the sides of the toe, the plate being flexible to permit it to conform to the contour of the shoe bottom and being arranged to receive a shoe supported by the operator underneath it, a shoe rest for engaging the top of the forepart of the shoe, and power-operated means for moving said shoe rest upwardly while the operator thus supports the shoe to force the shoe against said plate.
  • a presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being formed to extend inwardly over the marginal portion only of the shoe bottom about the end and along the sides of thetoe andbeing arranged to receive the shoe presented initially underneath it, means for positioning the shoe relatively to the presser by engagement with the upper on the end and side faces of the toe, a shoe rest for engaging the top of the forepart of the shoe, and means for moving said shoe rest upwardly to force the shoe against the presser.
  • a presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being arranged to receive a shoe supported by the operator underneath it, a shoe rest for engaging the top of the forepart of the shoe, and poWer-' operated means for moving said shoe rest upwardly while the operator thus supports the shoe to force the shoe against said presser.
  • a presser constructed and arranged to engage the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being formed to extend inwardly over the marginal portion only of thearranged to extend lengthwise along the sides of the shoe in converging relation for yielding engagement with the upper at the opposite sides of the toe respectively, and means for efiecting relative movement of said presser and the shoe thus positioned to cause the presser to press the upper on the shoe bottom.
  • a presser constructed and arranged to engage the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being formed to extend inwardly over the marginal portion only of the shoe bottom about the end and along the sides of the toe, means for positioning the shoe relatively to the presser comprising a pair of leaf springs arranged to extend lengthwise along the sides of the shoe for yielding engagement with the upper at the opposite sides of the toe respectively, means for adjusting said springs by flexing them laterally of the shoe, and means for 'eifecting relative movement of the presser and eifecting relative movement of the shoe and the presser to cause the presser to press the upper on the shoe bottom.
  • a presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, a pair of rolls arranged to engage the opposite side portions of the bottom of the shoe respectively to guide the shoe for lengthwise movement to a position where the upper on the toe end of the shoe bottom faces the presser, and means for efiecting relative movement of the shoe and the presser to cause the presser to press the upper on the shoe bottom.
  • a presser for engaging the upper on the'bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, a pair of rolls arranged to engage the opposite side portions of the bottom of the shoe respectively to guide the shoe for lengthwise movement to a position where the upper on the toe end of the shoe bottom faces the presser, said rolls being yieldingly mova'ble heightwise of the shoe in response to pressure of the shoe thereon, and means for eflecting relative movement of the shoe and the pressure to cause the presser to press the upper on the shoe bottom.
  • a presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being so formed as to extend inwardly over the marginal portion only of the shoe bottom about the end and along the sides of the toe, a pair of rolls arranged to engage the opposite side portions of the shoe bottom respectively to guide the shoe for lengthwise movement to a position where the marriage:
  • a-machine for operating'on shoes the combination with adevice for performing an operation on the toe end of a shoe, of: means for positioning the shoe-relatively to said device comprising a pair of separate leaf springs arranged to extend lengthwise along the-sides of the shoe toward the end of the toe in-suchconvergirrgrelation as to be forced apart by engagemen-toi the upper therewith at the opposite sides of the toe respectively as the shoe is moved lengthwise between them;
  • the combination with means for. performing an operation on a shoe, of a-pairot-rolls-arranged to engage thecpposite side portions of thebottom of the shoe respectively to guide-the shoe for lengthwise movement lute-position to bethus operated 'on,- said rolls being yieldingly -movable in a direction heightwiseof the shoe i-nresponseto pressure of the shoe thereon.
  • a presser constructed and arranged to engage-theupper on the bottom of the toe-end portion of a shoe presented thereto by the operatorafter the toe-lasting operation, a shoe-restarra'ngedto en-' gagethe top of the -forepart of th'eshoe', and power-operated means controlled by-the shoe -for effecting relative movement of said presser and shoe rest to cause thepresser to press the upper on the shoe bottom in responseto the-presentation of the shoe thereto;
  • apresser constructed and arranged to engage theupper on the bottom of the toe-end portion of'a shoe presented thereto by the operator after the toe-lasting operation
  • a shoe-rest arranged to en gage the top of the-forepart-of the shoe
  • poweroperated means for effecting relative movement of said presser and shoe rest to cause the presser to press the upper on the-sh0e'bott0m
  • electrical means controlled by-the shoe for rendering said power-operated m eans'thus operative in re-- sponseto the presentation of theshoe:-
  • a presser constructed and arranged to' engage-theupper on the bottom of thetoe-end portion ofa shoe presented thereto'bythe operator aiterthetoe-lasting operation, a shoerest'arrangedtoengage the top of the forepart of the shoe; fluidoperated means for movingsaid shoe rest heightwise of the shoe to force the shoe-*again'st' the presser and thus to cause the presserto press the upper on the shoe bottom, a member-arranged to be engaged by the-toe-end face of the shoe when it is presented, and electrical means controlled by said member for admitting: operating fluid to-saidfiuid-operated means in response to the presentation of the shoe;
  • a presser constructed and arranged to'engage the upper on the bottom' of the toe-end'portlontof 'a' shoe presented thereto by the operator after the. toe-lasting operation, a shoe-rest arranged'to en'- presser constructed and.
  • gage the top of the iorepart oi the shoe poweroperated: means for effecting relative movement oi-saidtpresser and'shoe rest to "cause the presser to press the'upper on .the shoebottom, a member arranged to be engaged by; the toe-end. face 0f.the:sh0e, electrical means including a switch arranged :to .be closed by pressure of the shoe on said member to render said power-operated means thus operative, and mechanism movable byusaidpower-operated means'to insure against opening of said switch in the event of any lengthwisedisplacement of the shoe when the pressure is appiied'thereto.
  • power-operated means for performingan operationon ashoe a member arranged to be engaged by theshoe
  • electrical means including a switch arranged to be closed by'pressure of the shoe onsaid member torender said power-operated means thus operative
  • additional power-operated means for insuring'independently of the shoeagai-nst opening of said switch when the shoeis thus operated on.
  • In'a'machine-foroperating on shoes means for lasting the-toe-end portion of a shoe in a cycle of automatic operations of the machine,- pressing meansarranged to receive the shoe after the toelastingoperation and to apply pressure to the margin of the toe end of the upper on the shoe bottom independently-of a cycle of operations of themachine; electrical means including a'solenoid forrendering said pressing means on the'shoe'only' as longas the solenoid is energized; and" automatic'mean's for breaking 1 the electrical circuit of the solenoid by the next cycle thus efiective of operations of the machine to effect the release of the shoe from the pressing means.
  • a machine for operating on shoes means for lasting the toe-end portion of a shoe in a cycle of automatic operations of the machine, a presser for thereafter pressing the margin of the toe end of the upper on the shoe bottom independently of a cycle of operations of the machine, a shoe rest for forcing the shoe against said presser, means for thus operating said shoe rest in response to presentation of the shoe to the presser, and automatic means for causing the shoe rest to release the shoe by the next cycle of operations of the machine.
  • a machine for operating on shoes means for lasting the toe-end portion of a shoe in a cycle of automatic operations of the machine, a presser for thereafter pressing the margin of the toe end of the upper on the shoe bottom independently of a cycle of operations of the machine, a shoe rest movable to force the shoe against said presser, fluid-operated said shoe rest, electrical noid for rendering said fluid-operated means thus operative in response to presentation of the shoe to the presser and for maintaining it efiective on the shoe rest only as long as the solenoid is energized, and automatic means for breaking the electrical circuit of the solenoid by the next cycle of operations of the machine to cause the release of the shoe by the shoe rest.
  • means for thus moving means including a sole- 24.
  • presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being constructed and arranged to extend inwardly over the shoe bottom at the end tance less than the width of the lasting margin of the upper, a shoe rest arranged to engage the top of the forepart of the shoe, means supporting said presser and shoe rest in predetermined relation to each other to receive the shoe presented initially with the upper on the margin of the shoe bottom facing the presser, means for effecting relative movement or said presser and shoe rest to clamp and hold the shoe between them, and a cutter movable to trim off at the toe surplus marginal upper material extending beyond the presser while the shoe is so held.
  • a machine for operating on shoes at presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being constructed and arranged to extend inwardly over the shoe bottom at the end of the toe a distance less than the width of the lasting margin of the upper, a shoe rest arranged to engage the top of the forepart of the shoe, means supporting said presser and shoe rest in predetermined relation to each other to receive the shoe presented initially with the upper on the margin of the shoe bottom facing the presser, means for effecting relative movement of said presser and shoe rest to clamp and hold the shoe between them, and a cutter movable bodily lengthwise of the shoe along the shoe bottom toward the end of the toe to trim ofi surplus marginal upper material extending beyond the presser while adjacent portions of the upper are held by the presser against the thrust of the cutter.
  • a presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being constructed and arranged to extend inwardly over of the toe a dis-' 'means for effecting relative presser and shoe rest to clamp and hold the shoe between them, and a cutter movable along said the top of the bottom at the end of the width of the lastingmargin of the upper, said arranged to engage the top of the forepart of the shoe, means supporting said presser and shoe rest in predetermined relation to each other to receive the shoe presented initially with the upper on the margin of the shoe bottom facing the presser, movement of said flexible presser in contact therewith to trim off surplus marginal upper material extending beyond the presser while the shoe is so held.
  • presser for engaging the upper on the bottom of i the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser betion to each other to receive the shoe presented initially with the upper on the margin of the shoe bottom facing the presser, means for efiecting relative movement of said presser and shoe'rest' to clamp and hold the Shoe between them, a cutter movablealong said presser to trim of]? surplus material extending beyond the marginal upper presser while the shoe is so held, and means for yieldingly urging said cutter heightwise of the shoe toward the presser in the upper-trimming operation.
  • presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being constructed and arranged to extend inwardly over the shoe bottom at the end of the toe a distance less than the width of the lasting margin of the upper, a shoe rest arranged to engage forepart of the shoe, means supporting said presser and shoe rest in predetermined relation to each other to receive the shoe presented initially with the upper on the margin of the shoe bottom facing the presser, means for effecting relative movement of said presser and shoe rest to clamp and hold the shoe between them, a cutter for trimming off at the toe surplus marginal upper material extending beyond the presser while the shoe is so held, and a support for said cutter movable about an axis extending widthwise of the shoe to impart to the cutter bodsaid support being thereafter reto return the cutter.
  • presser constructed and arranged to engage the upper on the bottom tion of a shoe but to extend inwardly over the shoe the toe a distance less than presser being flexible to permit it to bend and thus to'conform to the contour of the shoe bottom, and a cutter movable along the shoe bottom in engagement with said presser irrespective of the bending thereof to trim off surplus marginal upper material extending beyond the presser.
  • a presser constructed and arranged to engage the upper on the bottom of the lasted toe-end pormg constructed and arranged to extend inwardly of the lasted toe-end porti'on oi a shoe but to extend inwardly 'overithez shoe bottom-at the end of the mesa?
  • a holder for the cutter mounted on said support for swinging movement height- 5: wisexoiithe shoe about anaxis extending widthwiseofthe shoe, springmeans arrangedto act onisaidtholder to urge the cutterheightwise of the shoertoward the presser and to maintainthe cutter: in:contact with the presser in the uppertrimming: operation, and means on said holder for engaging the presser to prevent contact of the-cutter with the'presser until after said support-has received a portion'orits swinging'movement.
  • aholdei' for'saidzoutter movably mounted on said support; :andspring TIHESMSFZI- ranged to 'act on saidholde'r to maintain the cutter'yieldinglv in contact with'thecpresser inuthe' upperetrimming operation 34;
  • a pressen constructed and arranged: to engagerth-e' upper on t e bottom" of thelasted toes-end portionof a shoe but to'extend inwardly over: the shoe bottom at the and ob 1711871708 a-distancefless than the width of I the lasting margin: of: the uppen; a cutter for: trimming off at 'the toa surtheflpresser, a support *forsaidcutter movable the upper, and-a support for said ejector movable aboutthe same axis as said cutter support to causethe'ejectorto eject the waste-material.
  • arr-axis extending 'widthwise of the shoer'toupp r trimmin ut a upp f sa d utt meansrarranged ato act-on said: holder' to urgerthe cutterheightwiseofthe shoe toward the presser in the upper-tri mmingoperation.
  • .35HIn'a machine for operating: onsshoeana iupper-trimming cutter, asupport for said cutter movable to carry the cutter bodily lengthwise of a shoe to cause it to trim off the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector for engaging the waste material removed from the upper, and mechanism connected to said ejector for moving it in the same direction as the bodily trimming movement of the cutter to eject the waste material in response to the reverse movement of said cutter support.
  • an upper-trimming cutter In a machine for operating on shoes, an upper-trimming cutter, a support for said cutter movable relatively to a shoe to cause the cutter to trim off the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector for engaging the waste material removed from the upper, mechanism connected to said ejector and movable with the cutter support in the upper-trimming operation, and means for operating said mechanism to move the ejector away from the cutter in the same direction as the trimming movement of the cutter to eject the waste material in response to the reverse movement of said cutter support.
  • an upper-trimming cutter In a machine for operating on shoes, an upper-trimming cutter, a support for said cutter movable relatively to a shoe to cause the cutter to trim off the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector for engaging the waste material removed from the upper, mechanism connected to said ejector and movable with the cutter support in the upper-trimming operation, and a device into operative relation to which said mechanism is thus movable for causing it to operate the ejector to eject the waste material in response to the reverse movement of the cutter support.
  • an upper-trimming cutter In a machine for operating on shoes, an upper-trimming cutter, a support for said cutter movable relatively to a shoe to cause the cutter to trim oif the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector movable with the cutter for engaging the waste material removed from the upper, mechanism connected to said ejector and movable with the cutter support in the upper-trimming operation, means for operating said mechanism in response to the reverse movement of the cutter support to cause the ejector to eject the waste material and for then releasing the mechanism, and spring means for returning the ejector to its initial position relatively to the cutter when the mechanism is thus released.
  • an upper-trimming cutter In a machine for operating on shoes, an upper-trimming cutter, a support for said cutter movable about an axis extending widthwise of a shoe to cause the cutter to trim oiT the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector for engaging the waste material removed from the upper, a support for said ejector movable about the same axis as said cutter support, and means for thus moving said ejector support to cause the ejector to eject the waste material in response to the reverse movement of the cutter support.
  • an upper-trimming cutter In a machine for operating on shoes, an upper-trimming cutter, a support for said cutter movable about an axis extending widthwise of a shoe to cause the cutter to trim off the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector for engaging the waste material removed from the upper, a support for said ejector movable with said cutter support about the same axis in the upper-trimming operation, and means for moving said ejector support farther in the same direction about said axis to cause the ejector to eject the waste material in response to the reverse movement of the cutter support.
  • an upper-trimming cutter In a machine for operating on shoes, an upper-trimming cutter, a support for said cutter movable about an axis extending widthwise of a shoe to cause the cutter to trim off the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector for engaging the waste material removed from the upper, a support for said ejector movable with said cutter support about the same axis in the upper-trimming operation, mechanism connected to said ejector support and movable with it, and a device into operative relation to which said mechanism is carried in the uppertrimming operation for operating said mechanism to cause the ejector to eject the waste material in response to the reverse movement of the cutter support.
  • means for lasting the toe-end portion of a shoe in a cycle of automatic operations of the machine means constructed and arranged to receive the shoe after the toe-lasting operation and to clamp and hold the shoe independently of a cycle of operations of the machine, a cutter for trimming off the surplus margin of the toe end of the upper while the shoe is so held, and automatic means for operating said cutter thus to trim the upper under control of the next cycle of operations of the machine.
  • a machine for operating on shoes means for lasting the toe-end portion of a shoe in a cycle of automatic operations of the machine, means constructed and arranged to receive the shoe after the toe-lasting operation and to clamp and hold the shoe independently of a cycle of operations of the machine, a cutter for trimming oh the surplus margin of the toe end of the upper while the shoe is so held, power-operated means for operating said cutter thus to trim the upper, and automatic means for initiating the operation of said power operated means by the next cycle of operations of the machine.
  • a machine for operating on shoes means for lasting the toe-end portion of a shoe in a cycle of automatic operations of the machine, means constructed and arranged to receive the shoe after the toe-lasting operation and to clamp and hold the shoe independently of a cycle of operations of the machine, a cutter for trimming oif the surplus margin of the toe end of the upper while the shoe is so held, fluid-operated means for operating said cutter thus to trim the upper, and automatic means for admitting operating fluid to said fluid-operated means by the next cycle of operations of the machine.
  • a machine for operating on shoes means for lasting the toe-end cycle of automatic operations of the machine, means constructed and arranged to receive the shoe after the toe-lasting operation and to clamp and hold the shoe independently of a cycle of operations of the machine, a cutter for trimming oil" the surplus margin of the toe end of the upper while the shoe is so held, power-operated means for operating said cutter thus to trim the upper under control of the next cycle of operations of the machine, and additional automatic means for efiecting the release of the shoe from said portion of a shoe in ashoe after the toe-lasting operation and:to.c1amp' and hold the shoeindependently ofv a cycle of operations of the machine, a cutter for trimming off the surplus margin of the toe end of the upper while the shoe isso held; fluid-operated means for operatingsaid cutter thus' to trim the upper, means for admitting operating fluid to said fluid-operated means and for thereafter releasing the fluid therefrom by the next cycle of 1,753,406

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Description

March 16, 1948. B. JORGENSEN 2,437,696
MACHINE FOR OPERATING 0N SHOES Filed Dec. 21, 1945 7 Sheets-Sheet 1 March 16, 1948. B, JORGENSEN 2,437,696
MACHINE FOR OPERATING ON'SHOES Filed Dec. '21, 1945 7 Sheets-Sheet 2 BernbardtJrgensen By )2 Attor'ey Filed De. 21, 1945 7 Sheets-Sheet 3 In 0 en for Bernharaz Jar gen sen y March 16,- 1948. B. JORGENSEN 2,437,696
MACHINE FOR OPERATING ON SHOES Filed Dec. 21, 1945 7 Sheets-Sheet 4 5 132 54 1% I 1 m2 en for 162/ Y- Bern/Yard! Jorgensen i 160 3/11 .AzzOrne 14 gr l%% m;
March 16, 1948, JQR-GENSEN" 2,437,696
MACHINE FOR OPERATING ON SHOES Ffiled Dec. 21, 1945 7 Sheets-Sheet 5 A I I Inventor Be rW/mr'ai JOf'g ens en 16, 3948. B. JORGENSEN 2,437,696
MACHINE FOR OPERATING ON SHOES Filed Dec. 21, 1945 7 Sheets-Sheet 7 I n van for Bern/70rd! Jorgensen Patented Mar. 16, 1948 MACHINE FOR OPERATING ON SHOES Bernhardt J orgensen,
Marblehead, Mass, assignor to United Shoe Machinery Corporation,
Fleming'ton, N. J
a corporation of New Jersey Application December 21, 1945, Serial No. 636,289
52 Claims. I
This invention relates to machines for operating on shoes, and is herein shown as applied to a toe-lasting machine constructed generally as disclosed in United States Letters Patent No. 2,- 324,509, granted on July 20, 1943, on an application of mine, but modified in some respects as further disclosed in other Letters Patent hereinafter mentioned. It is to be understood, however, that in various novel aspects the invention is not limited to the illustrative embodiment.
The above-mentioned lasting machine is a fluid-operated machine including wipers which in the course of a cycle of automatic operations of the machine wipe the lasting margin of the toe end of the upper inwardly over an insole where it is secured to the insole by cement. The machine comes automatically to a stop to permit the wipers to remain for a few seconds in pressure-applying relation to the overwiped margin of the upper while the cement is setting, after which it is again started and completes its cycle, releasing the shoe. One object of this invention is to increase the output of the machine by reducing the time required for the wipers thus to dwell on the margin of theupper. To this and other ends, there is herein shown, as an attachment on the machine, novel means to which the shoe is presented by the operator immediately after the toe-lasting operation for further pressing the margin of the upper on the insole until the cement has more firmlyv set. This means comprises a pressing plate formed to overlie the marginal portion only of the shoe bottom, and a shoe rest arranged to engage the top of the forepart of the shoe and movable while the operator supports the shoe to force it against the plate, the latter being flexible to permit it to conform to the contour of the shoe bottom. The shoe rest is thus operated in response to the presentation of the shoe to the plate by fluid obtained from an accumulator which is charged by the fluid-pressure system of the lasting machine, the shoe when thus presented closing an electrical switch which controls the circuit of a valveoperating solenoid. This circuit is broken automatically by the next cycle of operations of the lasting machine near the end of the cycle to cause the shoe rest to release the shoe. To insure that the above-mentioned switch, after it has been closed by the shoe, will remain closed regardless of any slight displacement of the shoe, mechanism is provided for subjecting it automatically to closing force independently of the shoe.
Since the lasted toe end of a shoe of ,the type herein shown usually needs to be trimmed to remove surplus material from the marginal portion of the upper at a distance from the edge of the shoe bottom near the end of the toe, the invention further provides novel means arranged to cooperate with the above-mentioned pressing plate to accomplish that result. In the construction shown a cutter is moved bodily lengthwise of the shoe along the shoe bottom toward the end of the toe to trim oif surplus upper material extending beyond the plate, the cutter being thus operated by a cutter support which swings about an axis extending widthwise of the shoe but being movable relatively to the support and held yieldingly in contact with the plate in the uppertrimming operation. Operative movement is imparted to the cutter support by fluid-pressure means to which, as herein illustrated, fluid is conveniently admitted from the fluid-pressure system of the lasting machine in the course of the next cycle of operations of the machine. In order to dispose of the waste material removed from the upper the invention further provides novel ejector mechanism, this mechanism being operated, in the construction shown, in response to return movement of the cutter support after the trimming operation.
The above and other features of the invention,
' including novel shoe-positioning means, novel means for guiding the shoe into position to be operated on, and various novel details of construction and combinations of parts, will now be more particularly described with reference to the accompanying drawings and thereafter pointed out in the claims.
In the drawings,
Fig. 1 is a view in front elevation of the greater portion of the toe-lasting machine to which the invention is herein shown as applied, parts being broken away;
Fig. 2 is a plan view on an enlarged scale of a portion of the structure shown at the lower lefthand side of Fi 1, the frame of the machine being sectioned;
Fig. 3 is a section on the line IIIIH of Fig. 2;
Fig. 4 is a plan view. on an enlarged scale of a portion of the machine, with parts broken away;
Fig. 5 is an enlarged View in elevation, from the front of the machine, of the toe-pressing and trimming attachment shown at the left-hand side of Fig. 1;
Fig. '6 is a view mainly in Ieft-handside elevation of the toe-pressing and trimming means;
Fig. 7 1s a section on the line VII-VII of i .5;
* the last.
"position over the "trimming means com-es automatically other cylinder-and-piston the toe rest'G, the toe .and other Fig. 8 is a section on the line VIII-VIII of Fig. 6, with parts broken away;
Fig. 9 is a view similar to Fig. 8, but showing also a portion of the toe-trimming means in the course of its action on a shoe;
Fig. 10 is a view in vertical section of a portion of the toe-pressing and trimming means, with the trimming means-positioned: as iii-Fig. 9;
Fig. 11 is a vertical section at right angles to that of Fig. 10, showing the parts in the same positions;
Fig. 12 is a view similartoFig/IO with:the parts as they appear after the beginning of the return movement of the trimmingrcutter;
Fig. 13 is mainly a vertical sectional view showing a valve involved in the operation of the trimming means and the valve-operating mechanism; and
Fig. 14 is a diagrammatic view of the fluidpressure generating and controlling means with which the lasting machine is provided.
As disclosed. in the previously mentioned Letters'Patent, the toe-lasting machine herein shown is provided with a plurality of fluid-operated instrumentalities which operateon the shoe in the course of a cycle of power operations of the machine. As further disclosed especially in Letters Patent No. 2,391,461, granted on'December 25, 1945, on anapplication of'mine, the shoe is presented by the operator with the bottom'of the forepart of the insole in engagement with a plate 2 (Fig. 1) provided with a spur'4 which enters an indentation previously formed in the insole to assist in positioning the'shoe in proper relation to the lasting instrumentalities. Substantially at the beginning of the cycle of operations of the machine the shoe is clamped against the plate'2 by the upward movement ofa toe rest 6. Included in the lasting instrumentalities are a toe former 8 which wipes the toe end of the upper heightwise-of the last andapair of wipers IE! which wipe the lasting margin of the toe end'of the upper'inwardly over an'insole on Prior to such operation of the wipers, however, the margin of all but the outer layer of the toe-end portion of the upper materials is trimmed off by trimming meansidentifiedgenerally by the reference character l2 (Fig. 4) and hot thermoplastic cement is applied to the-toe end of the shoe for securing the margin of the upper to the insole, the cement-applying means 'being identified generally by the reference'character Hi.
The trimming means and the cementapplying means are supported .on' a common carrier l6 which is mounted to swing about a vertical axis to carry the cement-applying means into shoe after the operation ofthe thereon, such swinging movement of the carrier being effected by a piston l8 movable in a cylinder at to which operating fluid- .is admitted through a pipe line 22. .After the marginof the upper has been wiped inwardly over the insole by the wipers H] the machine to a stop to cause the wipers toremain a few seconds in pressure-applying .relation to the upper while the cement is setting. Thereafter the machine is again started and completes its cycle, releasing the shoe.
. In addition to the piston 18 and the cylinder 20 associated with the carrier devices for'operating former 8, the wipers l0, instrumentalities with which the machine is provided, the several devices being supplied with operating 25, there are provided fluid, preferably oil,
pipeline-.22; the tube having from the position in 'fiuid to the pipe line by a 55) engaging a lug on thearm.
swung by a spring '80 over the arm 64 to swing the latch 58 20 and corresponding tothevalve 748 shown in "Letters "Patent No. 2,324,509, this valve and its operating mechanism being shown in detail in Fig. 13. The valve is a sleeve valve mounted to slide ion'attube 28 in'communication at one end with the manifold 24 and at the other end with the therein a partition 30 which'dividesone end portion thereof from the other. At one side of the partition are a plurality of ports '32 and at the other side thereof a plurality of ports 34. Formed in the valve is an annular chamber 35 through which the ports 32 are caused to communicate with the ports 34. toadmit fiuid'from-themanifold 24 to the pipe valve is moved toward the left which it is shown in Fig. 13. The-valve is controlled through an arm 38 pivotally mounted at lfl on a bracketAZ, a spring 44 line 22 .when the being connected'to this arm to maintain the valve normally in positiontc prevent communication between themanifold. and the'pipe line 22, as shown. The ports are uncovered at that time to permit exhaust of fluid from the pipe line 22 back-to areservoir or sump 46. The arm 38 is swung into position'to cause the valve to admit lever 63 also pivoted at 40 on the bracket42 and arranged thus to act on the arm'38 through a small compression spring The lever 48 is operatedat the proper time in the cycle by one of a plurality of fingers 52 mounted on a rotatable drum 54 like that/shown in Letters Patent No. 2,337,558,'granted on December 28, 1943, on an application of mine, the finger being arranged to engage aroll56 onone end of thezlever. In this movement "of 'the lever a latch 58 .pivotally mounted thereon is carried into position to be a shoulder 62 on the bracket 42 to retain the valve 25 in the position to which it is moved, the spring 60 being connected to an arm'fid which isin fixed relation to they latch. At the proper time in the cycle another-ofthe fingers'52 onthe drum 5A acts on from over the shoulder 62, whereupon the'spring 44 returns the valve 26 to its initialposition.
The drum 54 is rotated-by fluid admitted to a cylinder-'66 (Fig. .14) from the manifold 24 and acting on -apistontfiflconnected to the drum, the
fluid being'admitted to the cylinder by a valve 10 movable by'the'operator'thus to start the cycle of operations'of the machine. It will be understood'thatthe cycle of operations corresponds thefluid into the manifold I6. When-the machine is returns freely from through a valve 18 not in operation the 'fluid the 'manifold tothe sump without developing any substantial pressure in the manifold. operator to close The valve 13 is moved by the the outlet from the manifold before the valve 10 is operat d to start the machine;whereuponpressure is developed in the manifold and the excess fluid delivered by the pumpreturns-to the sump 46 past a spring-controlled relief valve which determines the pressure in the manifold. At the end of the cycle of operations the valve 18 is returned automatically to its initial position to cause the pressure in the manifold to'fall substantially to zero.
As thus far described. the machine herein shown may be assumed to be constructed substantially as disclosed in the previously mentioned Letters Patent. As further disclosed in Letters Patent No. 2,420,665, granted on May 29, 1947, on an application of mine, it has attached to its right-hand side mechanism indi cated generally by the reference character 82 (Fig. 1) for providing the insole with an indentation to receive the previously mentioned shoepositioning spur 4, the shoe being presented to this mechanism before it is presented to the lasting instrumentalities. The indenting mechanism is operated by fluid delivered by the pump I2. In order to permit it to be thus operated when there is no pressure in the manifold 24, i. e., prior to the beginning of a cycle of operations of the lasting machine, there is provided an accumulator 84 (Fig. 14) comprising a cylinder 86 in which is a piston 88 movable against the resistance of a spring 90 by fluid admitted to the cylinder. Fluid is conducted to the accumulator from the pipe line I6 by a pipe line 92 in which is a check valve 94 to prevent return of the fluid. The fluid for operating the indenting mechanism is conducted to that mechanism from the accumulator through a pipe line 05. It will be understood that the accumulator is charged at any time when the manifold 24 contains fluid under pressure greater than that of the fluid in the accumulator, and that when the pressure in the manifold is reduced to zero at the end of each cycle of operations of the lasting machine the accumulator remains charged so that the indenting mechanism may be operated when the lasting machine is idle.
For purposes of this invention there is conveniently supported on the left-hand side of the frame of the lasting machine a toe-pressing and trimming attachment identified generally in Figs. 1 and 4 by the reference character 08. One of the functions of this attachment is to apply pressure to the cement-lasted marginal portion of the toe end of the upper immediately after removal of the shoe from the lasting instrumentalities to hold the upper on the insole until the cement has more firmly set, thus permitting the time during which the upper is held under pressure by the lasting wipers I to be shortened with a consequent increase in the output of the lasting machine. To this end, the attachment includes a presser consisting of a plate !00 (Figs. 8 and 10) arranged to engage the lasted marginal portion of the upper overlying the insole, the plate having therein a recess I02 so that it will extend inward only over the margin of the shoe bottom about the end and along the sides of the toe. The plate is flexible to permit it to bend and thus to conform to the contour of the shoe bottom for applying effective pressure to all portions of the upper beneath it. Beyond the end of the toe and also along the opposite side margins of the plate the latter is thickened, its side marginal portions being inserted in horizontal slots I04 (Fig. 11) formed in supporting members I 00 which are fast on opposite side frame plates I08 of the attachment (Fig. The plate I00 is held firmly in the slots I04 by a setscrew H0. The shoe is presented by the operator to receive the pressure of the plate by moving it lengthwise to a position where the marginal portion of the toe end of the upper overlying the insole is under the plate. To guard against any damage to the shoe by contact with the front edge of the plate when it is thus presented, there are provided two tapered rolls II2 mounted to turn on studs 4 which are supported on the front ends of leaf springs IIG secured at their rear ends by screws II8 on the tops of the members I06, the rolls 'being arranged to engage respectively the opposite side portions of the shoe bottom. Initially the lower faces of the rolls are somewhat lower than the plate, as shown in Fig. 5, but after the shoe has been properly presented the leaf springs II6 are yieldable to permit the rolls to be lifted by the shoe when the shoe is forced upward against the plate. To position the shoe laterally in proper relation to the recess I02 in the plate I00, there are provided two leaf springs I20 arranged to extend rearwardly in converging relation to each other to receive and to centralize the toe end of the shoe between them by their engagement with the sides of the toe. Each of these springs is secured against the inner vertical face of one of the members I06 by the flanged inner end of a sleeve I22 (Fig. 8 which extends outwardly through a slot I24 formed in the member I06 and in the frame plate I08, a hand wheel I26 being threaded on this sleeve and engaging a washer I28 which bears on the frameplate. It will thus be seen that by turning the hand wheel in one direction the spring I20 is clamped firmly against the member I06, and that upon turning the hand wheel reversely the spring is loosened to permit'it to be adjusted in directions lengthwise of the shoe by moving the sleeve I22 along the slot I24. Fast in the inner end portion of each sleeve I22 is a small sleeve I30 in which is threaded a screw I32 in engagement at its inner end with the corresponding spring I20. By turning the two screws I32, therefore, the shoeengaging portions of the springs I20 may be adjusted in directions widthwise of the shoe as may be required for shoes of different widths.
After the shoe has been presented as above described it is forced upwardly against the plate I00 by a shoe rest I34 engaging the" top face of;its toe-end portion. This shoe rest is supported on the upper end of a piston I36 (Figs. 5 and 6) movable vertically in a cylinder I38 which is part of a casting I40 (Fig. 7) secured to a horizontal frame plate I42. Springs I44 connected to pins I 46 which extend from the piston through slots I 48 in the cylinder I38 hold the piston initially in its lowest position determined'by' engagement of the pins with the cylinder, the lower ends of the springs being connected to studs I50 threaded in the frame plate I42. Fluid is admitted to the lower end of the cylinder I38 and is later exhausted therefrom through a port I52 in the casting I40 under control of a horizontal slide valve I54 in the casting, this valve having an annular recess I56 in communication at all times with the port I 52. When the valve is in its initial position, asshown inFig, 7, this recess is in communication alsowith an exhaust port I58 from which a pipe I60 leads to a point over the sump 46 to permit return of the fluid to the sump. Operating fluid is admitted to the cylinder I38 to cause the shoe to be forced up against the plate I00 by movement of the valve I54 to a position in which an inlet port I62 in the casting "I40, instead of the exhaust port I58, is in communication with the port I52. Since the cycle of operations of the lasting machine has been completed at the time when the shoe 'is forced up against agar-no.6
hen1ste. II. l., nd-. mce at thatti e is no pressure inthemaniioldflt l, as hereinbefore expia-ined for, operatingthe piston I 35 is. obtainedifrom the accumulator 84,.(Fig. 14). According-1y, the inlet port-$2.15 in communication, thnoughT'a pipe I64, with thepreviously mentioned pipe; line 92 through; which the accumulator is harged by h pump 1 Thevalve I54. is moved-as above. described into position to'admit fluid to thecylinder I38 by electrical-means. Thisincludes asolenoid I66 having, an armature I08 towhich are pivotally connected the rear ends of tworods I10 extending forwardly; at opposite sides respectively of the casting I40, At their front ends these rods. extend throughhlocks I12. (Figs. 5 and '7) which are pivotally mounted. onupwardlyextending arms I14 a forked, lever I.I6-. pivotallymounted at its lower: endonrthe head of a stud. I18. in the frame plate I42. This. lever is connected between its upper-andlowerendsto.thefront end of the valve I54: by aipin I80.- extending through slotsv I82 in thelever. The rods I 1 0-al so extend through. open.- ings-in-a plate I-84 fast. ontherear of the casting I40 and oonflnedbetween-this plate and collars liliiiast ontherods are. springs I88. These springs, therefore,- urgethe, rods in forward directionsand by reason of the engagement of nuts I-90on1the rods-with the, blocks I.I2- position the valve I54 initially as shownin Fig. 7, the limit ot the-movement of: thevalve by the springs being determined by astop screw I92, in engagement with a lug; I-9A .0115 the lever I 16. When the electrieal. circuit Qithesolenoid I60 is: closed the rods I ='Ii0.are moved..-.1- eer-.wardly against the resistance oi the springs. I.8& andiby-reason of the engagemerit of. nuts. ,ldd-ontherods; with the blocks I12 the valveismoved inte position to admit the op eratingtluid; to the cylinder I38.
lihe closing: of the electrical. circuit of the solenoidglfifi. to cause-thevalve I54..to be moved as above.- desmibedz is effected, in, response to the presentatiomofthe, shoein position to be operated, on, For this. purpose there is slidingly mounted. in -a holder I98. (Figs. 6 and a plunger 200- having onits front end a pad 202 arranged-to. beengaged by -the toe-end face of the-shoe when. the shoe is presented. The holder L38 is. secured. to a switch box 204, which is fast on-theframe. The plunger 29!) ismovable between limits determined-by a pin 206 mounted thereiirand slpts208 -in=the holder I98 into which thepin extends The plunger is-urged-in a forward direction bya spring Mil-engaging a shoulder thereon. A reduced rearwardly extending portion .of the plunger is in engagement with one end of; apin- 2,I2 the other end of which bears against a resiliently-flexible member 214 carrying oneof the contact elements of-a switch 2I6 in the switohbox 204,- Accordingly, pressure of the .toe-end-.; ce o e h e. agains th p d 202 when the-shoeis; presented by the, operator serves to closet he switoh 2I-.6.--and thus to activate the solenoid L05, whereupon the fluid is admitted to the cylinder I38; and-the shoe rest I34 ismoved upwardly to force the shoe against the plate I00. It will be understood-that the pad 202 serves further as an'end; gage-for the shoe to determine its positionleng-thwise with respect to the recess I02 inthe plate: I00".
To assist in avoiding; any possible lengthwise displacement: of the shoe in a heelward direction by: the pressure of; the shoe rest I34 thereon, the lower-face of the plate I00 is provided adjacent to. the re ess: 92 w th-e ser fi r switch 216 closed regardless tions.2 I8.(F-ig 8.) whichengege the upper. Furthelf to in ure easiest. pe n o th switch 2 inthe event of. any such, slight. displacement of the shoe, mechanismis. .provided-for holding the switch closed independently of. the shoe after it has been cl osed by! the shoe, For this purpose there is. pivotally mountedon, a pin 220 in the holder I98=abell=crank lever 222 on one arm of which is. a finger 224.1ying; in a-notch formed. in the plunger 200-. Pivotallyconnected to the other arm of the bell=6mnk lever is. arod- 226 extends o w r ly h oughe op nine. in a memher 220 threaded in the, piston I35. Between this member and a collar 2.30,fast.on the rod 226. is. a compression spring 232., When the piston, therefore, is moved upwardly to, cause the shoe rest I34 to force the shoe. against thepl te I00. the spring 232'is compressed sothatit aotsthrough thebellcrank lever 222 on the plunger. 200.. to. hold the of pressure toe end of the, shoeonthe, Dad 202.
A t r he es ine 01;.- th e en o a oe 0f the typeherein. showna portion of the margin of the upper at .a distance from the edge of the shoe bottom, especially. near the end of the toe, usu'ally projectsmore or less upwardly. from the insole and needsi to be trimmed off-before an outsole isapplied to.- the shoe. The pressing plate IEIiiis accordingly-solormed and the shoe is. so positioned that when such; trimming is required the plate extends; inwardly overthe shoe bottom at the end of the; toe a distance lessthan the width ofthe lasting'marg-in of the upper, and mechanism is; further provided for trimming off the surplus margin of thezupper extending beyond the plate. This; mechanism includesa trimming knife or cutter 234 mounted ona holder 236 which is supported by downwardly and forwardly extending'arms 23B of. two bell-crank levers 240 mounted to swing about a rod 242 supported by the frame plates I08 and extending widthwise of the shoe, the two bell-crank levers being rigidly connected together by a web 244 To operate the cutter 234 the bell-crank levers are swung in a clockwise direction with reference to Fig. 6 by means hereinafter described. The holder 236 is pivotally mounted on studs 246 (Fig. 5) on the ends of the arms 238' to swing relatively to the arms about an axis extending widthwise of the shoe and it is engaged by two spring-pressed plungers 248 carried by the arms 238, these plungers tending to swing it in a counterclockwise direction and holding it initially in contact wi lus 2. .9 on. th arm as. shown i i 6. As the bell-crank levers 240 begin their operaiv sw n in mo eme th utter 3 has a u hen comp nent. o ownwar m veme oward the. platel 10, after which it is moved bodily lengthwise of the shoe along the plate, toward the nd; oi he. oe otn moff he sur lu margin of he e .v i lu trated. in. F .0.- T re the edge of thecutter fromengagmg the plate when the cutter is .thusmoved, downwa idly there arefast on the holder235two fingers. 2552 (Figs. 5 a d h ch-en ag the. ate. e f the cutter and causethe holder to swing about the studs 246 against the resistance of the plungers 248until the cutter ismore nearly parallel to the shoe bottom, after-whichthe. cutter itself engages the top of the plateand is held yieldingly in contact with it by the plungers, irrespective of the earlier bending .of the plate, in the upper-trimming operation. Itwillfbeunderstood that in this operation the plateholds-portions of theupper of the 9 adjacent to the line of the out against the thrust of the cutter.
For swinging thebell-crank levers 240 to operate the cutter in the manner above described rearwardly extending arms 2 54 of these levers are connected by links 256 to a crossbar 258 (Figs. 5 and 6) fast on the upper end of a piston 260 vertically movable in a cylinder 262 fast on the frame plate I42. Springs 264 connected to the crossbar and to studs 266 in the plate I42 tend to move the piston downwardly and hold the bell-crank levers 240 normally in their initial positions determined by engagement of a pin 268 in the piston with the cylinder 262 at the lower ends of slots 210 in the cylinder. .The'limit of the upward movement of the piston and of the operative movement of the cutter is further determined by engagement of the pin with the cylinder at the upper ends of the slots. Conveniently the piston 260 is operated at a predetermined time in the next cycle of operations of the lasting machine after the previously lasted shoe has been clamped against the plate I by the toe rest I34,
I and for this purpose operating fluid is conducted to the cylinder 262 by a pipe 212 (Figs. and 14) leading from the previously mentioned pipe line 22 to which fluid is admitted by the valve 26 for swinging the carrier I6 to bring the cementapplying means I4 into position over the shoe after the trimming of the inner layers of the upper materials by the trimming means I2. After the cutter 234 has been operated it remains at the limit of its operative movement until, in the course of the cycle of operations of the lasting machine, the valve 26 is returned into position to release the fluid from the pipe line 22, Whereupon the piston 260 is moved downwardly by the springs 264 and the cutter is thereby returned to its initial position.
The cutter 234 is inserted in the holder 236 by sliding it into grooves 214 (Fig. formed'in the holder. Its position with respect to the holder is determined by a screw 216 (Fig. which is threaded in the holder and is provided with a flange 218 extending into a groove in the cutter. By means of this screw the cutter may be adjusted along the grooves to vary the position of its cutting edge relatively to the previously mentioned fingers 252 (Fig. 5).
To dispose of the waste material received from the upper by the cutter 234 there is provided an ejector 286 (Fig. 10). As shown further in Fig. 9, this ejector includes an inclined plate 282 positioned normally with its lower edge in engagement with the top of the cutter 234 in a recess in the holder 236. Extending from this plate is an arm 284 pivotally mounted on a pin 286 carried by an arm 288 which is mounted to swing about the previously mentioned rod 242 between the bell-crank levers 240. A spring-pressed plunger 290 in the arm 288 engages the arm 284 and holds the plate 282 down on the cutter 234. The arm 238 is connected by a link 292 to one arm 294 of a bell-crank lever 296 mounted to swing about a rod 298 which provides the connection between the arms 254 and the links 256. A spring 300 connected to the arm 294 and to a pin 302 in the web 244 holds the arm 288 initially in a position determined by the engagement of a screw 304 mounted in a lug 306 on the hub of the arm with the web 244. By the cutteroperating movement of the bell-crank levers 240 the bell-crank lever 286 is carried upwardly to a osition where an arm 308 thereof extends over the upper end of a pawl 3| 0 pivotally mounted on a pin 3I2 which is supported by a block 3I4 fast on the frame. A spring-pressed pin 3I6 in the block holds the pawl normally in a position determined by engagement of a tail portion 3; thereof with a screw 320 in the block. Accordingly, in response to the return movement of the bell-crank levers 240 after the trimming operation the bell-crank lever 296 is swung by the pawl 3l0 in a clockwise direction (Fig. 12) and thereby swings the arm 286 to carry the plate 282 rearwardly from over the cutter 234 and along the top of the plate I00 to move the waste material into a trough 322 (Fig. 8) arranged to receive it. This trough includes .a horizontal plate 324 secured to the frame plates I06 in the same plane as the presser plate I00, and upstanding side plates 326 the front end portions of which are curved outwardly away from each other and extend over the presser plate I80. Preferably the trough 322 extends rearwardly and downwardly to a position over the top of a receptacle (not shown) with which the machine is provided to receive the waste material removed from the upper by the trimming means I 2 (Fig. 4) as disclosed in Letters Patent N6. 2,324,509. It will be understood that successive increments of waste material in the trough 322 are pushed along the trough toward the receptacle by the ejector 280. It will further be understood that in the course of the return movement of the bell-crank levers 240 after the trimming operation the arm 308 of the bell-crank lever 296 slips ofi the end of the pawl 3I0, whereupon the spring 300 returns the arm 288 and the plate 282 to the positions determined by engagement of the screw 304 with the web 244.
The shoe is released by the shoe rest I34 near the end of the cycle of operations of the lasting machine. For this purpose there is fast on the drum 54 a ring 328 (Figs. 2 and 3) carrying a screw 330 the head of which is arranged to engage a lever 332 pivotally mountedat 334 on a bracket 336 fast on the frame of the machine, the bracket supporting a switch box 337. The lever 332 engages a plunger 338 movable in the switch box and bearing against a resiliently flexible member 340 which carries one of the con,- tact elements of a switch 342 in the circuit of the solenoid I 66. The switch is operated to break the circuit by the action of a screw 330 on the lever 332, whereupon the valve I54 (Fig. 7) is returned to exhaust position by the springs I88 and the shoe rest is moved downwardly by the springs I44, releasing the shoe. Prior to the end of the cycle the screw 330 releases the lever 332 the return movement of which is limited by engagement of a screw 343 in its lower end with the switch box. This causes the switch 342 again to close, but at that time the switch 2I6 (Fig. 6) is open by reason of the release of the shoe and the return of the piston I36. When the shoe is thus released and falls it is caught and held by a shoe receiver 344 comprisinga pair of downwardly inclined rods 346 secured at their upper ends to the frame plates I08, the rods having thereon diverging wings 348 between which the shoe is receivedand being provided at their lower ends with a pad 350 for engaging the heel-end face of the shoe. 7
To avoid the necessity of running the lasting machine idly through a cycle of operations in order to cause the cutter 234 to operate on the last shoe, there is provided means whereby the operator may move the valve 26 (Fig. 13) manually toadmit fluid from the manifold 24 to the pipe line 22. This means comprises a wire 352 guided by a flexible cable 354 and connected at one end to the valve-operatinglever 48, the other end of the wire being connected to a pin 356 slidingly movable in a front frameplate 358 and having fast on its outer end a knob 366. A spring 362 mounted between the frame plate and a member 364 fast on the pin 356 holds the knob 366 normally against the front of the frame plate. To cause the cutter 234 to operate on the last shoe the operator ulls on the wire 352 by means of the knob 366, thus moving the valve 26 into position to admit fluid to the pipe line 22. 'The member 364 is so adjusted on the pin 355 that by engagement with the frame plate 358 it prevents the lever 48 from being moved far enough to cause the latch 58 to swing inwardly over the shoulder 62. After the operation of the cutter the operator releases the knob 366, whereupon the valve 26 is returned to its initial position and releases the fluid from the pipe line 22 to cause return movement of the cutter. It will be understood that the movement of the valve 26 results also in an idle-swinging-movement of the carrier I6 (Fig. 4). Since the pressure in the manifold 24 falls substantially to zero upon the completion of each cycle of operations of the lasting machine, the operator, before operating the valve 26 as above described,.moves the valve 1.3 (Fig. 14) into position to close the outlet from the manifold and thus to cause the development of pressure therein as he normally does prior to starting each cycle of operations. After the op-- eration ofthe. cutter and .the. return of the valve 26 to its initial position the operator causes the valve I6 toreturn andto release the fluid from the manifold by movement of amember not herein shown with which the machine is provided, this member being that identified by the reference character 1214 in Letters ,Patent No. 2,324,- 509. In order to cause the release of the last shoe after .it has .been trimmed the operator breaks the circuit of the solenoid I66 bya hand switch (not shown) mounted ina switch box 366 (Fig. 5) and controlled by .a handle .366.
The operations hereinbeiore described, in so farv as they are of special interest with reference to the present invention, will now be briefly summarized. Itwill be understoodthat in the course of the cycle .ofoperations of thelasting machine the toe end .of .the shoeis lastedin the same manner as heretofore, except that the wipers I6, after wiping themargin of the upper inwardly over the insole, remain for only a comparatively brief time in pressure-applying relation to the upper. Immediately uponrelease of the shoe at the end of the cycle theoperator presents it to thepressing and trimming attachment96, moving it lengthwise under the guidance .of the rolls H2 into position beneath the pressing plate I66 until its toe-end face presses against the pad 262. The pressure of the shoe on this pad operates the switch 2I6 (Fig. 6) to close the electrical circuit of the solenoid I66, thus causing the valve I54 to be moved into position to admit operating fluid from the accumulator'84' to the'cylin'der I36. By the fluid thus admitted to the cylinder the shoe rest I34 is moved upwardly to force the shoe firmly against the plate I66, the latter bending more or less to conform to the contour of the shoe bottom. In this operation the spring 232 is compressed toinsure thatthe switch 2I6 will remain closed. The operator then presents the next shoe to the lasting instrumentalities-and again starts the cycle of operations of the lasting machine. At
12 cycle'when the valve 26 is'oper ated to. admit fluidto .thepipe line 22:and' thusxto cause. the carrier'16 '(Fig. 4) to beswung .into position, to bring thecement-applying means I4 over'the shoe, fluid 'fromthe'same pipe line 22 is admitted to the cylinde'r'2B2 'to operate the cutter 234. .As thefcutter'is operated'through'the bell-crank lever 246 .it receives "first a compo-' the time in that nent of downward movement toward the plate I66, the members 252 (Figs. '5 and 9) engaging this plate and causing'the Jcutterholder 236 .to swing about the studsf246 onthe arms 238. "In this manner the cutteriscaused to assume aposition.morenearlyparallel'to,the plate I66, and as it is.moved.'farther lengthwise of the shoe toward the end of the toe its cutting edge engages the top of the plate and trims off'the surplus marginof'the upper extending inwardly and upwardly beyond v.the plate (Fig. 10), the operative movement .of'the .cut'terbeing limited by engagement of the,p'in 2.68 withlthe cylinder 262 at the upper en'dsofithe s'lotsi2'l6'. .Near'thet'end oithe operativemovement oilthe cutter'the arm.368 of the bell-crank lever296'is carried upwardly past the yielding paw13'I6 andt'hepawl snaps inwardly undenthe .arm. 'At'th'e time ;intthe cycle of operations of the lasting machine when the fluid isreleasedffrom the pipe line 22' by return movement oflthe valve, 26. the belle rank levers 246 arereturneld'by thesprings 264 acting on the piston 266. "Early in this return movement of the bell-'crank'levers anidfthe cutterthe pawl .3116 causes"thebell-crankflever 296'to swing in the direction tooperate the eiector2'86 (Fig.'12) ,.thus causing the ejector to force the waste material removed. 'fromjthe upper over 'the plate "I 66 andinto thetroughj322'by which the successive'increments of waste material removed-from the .difierentshoes are conducted to a wastareceptacle (notshown). .Asthe bell-crank levers 246;contimie their .return'movement the arm 36B slips. off the,pawl-3I6, whereuponthe springi366 returns the .eiector266 toji'tsii'nitialposition with respect .to thecutteriholder 236. Near the end of the-.cyCleOioper tionsofthe'lasting machine the. screw -33.6 (Fig.3) .acts .on the lever332 to openthe. switch 342,;thusbreaking the electrical circuit of the solenoid I66 and causing the ,valve I54 toreturnto itsinitial position and to release the lfluidfromthecylinder I38. vIThe shoe rest I34 is thenreturned by the springs I44, thereby releasing the shoe whichfalls and is caught and held .by the.shoe..receiver'344. Just before ,the completion of the .cycleof the lasting machine the screwl'336rpasses'beyond the lever.332, causing theswitch 342 againtoclosepthe switch 2 I6 being thenopen. Accordinglythe pressing and trimming attachment is ..in.condltion to receive the next shoe immediatelyupon its release by the lasting machine, .,To causethecutter 234 to operate on the'last shoe when the-lasting machine is idle, the operator .manipulates the valve 26 by means of the wirei35'2 (Fig. 13), after he.has closed the .valve. 'l8-to-cause pressure to develop in themanifold 124, .andafter the operation of theciitter he again .opens the valve 16. "T0. cause the shoe rest I34 to,releaseathelastrshoe he. breaks theclrcuitof the solenoid I66 by means .of the handle368 (Fi 5) on the swltch'box'366.
It will'be understoodlthat although the shoe remains under'the pressure of the lasting wipers a substantiallyshorter time than heretofore, the lasted marginof the .upper is held effectively enough inlastedposition by the cement in the brief interval before it is subjected'to thefurther to cause the presser to pressure of the pressing plate I00. It will be evident that the margin of the upper is normally held by this plate until the next shoe is presented to the lasting machine and substantially throughout the next cycle of operations of the machine, during which time the setting of the cement is completed to cause it to hold the upper securely.
Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:
1. In av machine for operating on shoes, a presser constructed and arranged to engage the upper on the bottom of the toe-end portion of a 'shoe presented thereto after the toe-lasting operation, said presser being formed to extend inwardly over the marginal portion only of the shoe bottom about the end and along the sides.
of the toe and being flexible to permit it to conform to the contour of the shoe bottom, means for positioning the shoe relatively to the presser, a shoe rest arranged to engage the top the forepart of the shoe, means supporting said presser and shoe rest in predetermined relation to each other to receive the shoe supported by the operator with the upper on the margin of the shoe bottom facing the presser, and means for efiecting relative movement of, said presser and shoe rest while the operator thus supports the shoe press the upper on the shoe bottom.
2. In a machine for operating on shoes, a presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser comprising a plate formed to extend inwardly over the marginal portion only of the shoe bottom about the end and along the sides of the toe, the plate being flexible to permit it to conform to the contour of the shoe bottom and being arranged to receive a shoe supported by the operator underneath it, a shoe rest for engaging the top of the forepart of the shoe, and power-operated means for moving said shoe rest upwardly while the operator thus supports the shoe to force the shoe against said plate.
3. In a machine for operating on shoes, a presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being formed to extend inwardly over the marginal portion only of the shoe bottom about the end and along the sides of thetoe andbeing arranged to receive the shoe presented initially underneath it, means for positioning the shoe relatively to the presser by engagement with the upper on the end and side faces of the toe, a shoe rest for engaging the top of the forepart of the shoe, and means for moving said shoe rest upwardly to force the shoe against the presser.
4. In a machine for operating on shoes, a presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being arranged to receive a shoe supported by the operator underneath it, a shoe rest for engaging the top of the forepart of the shoe, and poWer-' operated means for moving said shoe rest upwardly while the operator thus supports the shoe to force the shoe against said presser.
5. In a machine for operating on shoes, a presser constructed and arranged to engage the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being formed to extend inwardly over the marginal portion only of thearranged to extend lengthwise along the sides of the shoe in converging relation for yielding engagement with the upper at the opposite sides of the toe respectively, and means for efiecting relative movement of said presser and the shoe thus positioned to cause the presser to press the upper on the shoe bottom.
6. In a machine for operating on shoes, a presser constructed and arranged to engage the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being formed to extend inwardly over the marginal portion only of the shoe bottom about the end and along the sides of the toe, means for positioning the shoe relatively to the presser comprising a pair of leaf springs arranged to extend lengthwise along the sides of the shoe for yielding engagement with the upper at the opposite sides of the toe respectively, means for adjusting said springs by flexing them laterally of the shoe, and means for 'eifecting relative movement of the presser and eifecting relative movement of the shoe and the presser to cause the presser to press the upper on the shoe bottom. I
8. In a machine for operating on shoes, a presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, a pair of rolls arranged to engage the opposite side portions of the bottom of the shoe respectively to guide the shoe for lengthwise movement to a position where the upper on the toe end of the shoe bottom faces the presser, and means for efiecting relative movement of the shoe and the presser to cause the presser to press the upper on the shoe bottom.
9. In a machine for operating on shoes, a presser for engaging the upper on the'bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, a pair of rolls arranged to engage the opposite side portions of the bottom of the shoe respectively to guide the shoe for lengthwise movement to a position where the upper on the toe end of the shoe bottom faces the presser, said rolls being yieldingly mova'ble heightwise of the shoe in response to pressure of the shoe thereon, and means for eflecting relative movement of the shoe and the pressure to cause the presser to press the upper on the shoe bottom.
10. In a machine for operating on shoes, a presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being so formed as to extend inwardly over the marginal portion only of the shoe bottom about the end and along the sides of the toe, a pair of rolls arranged to engage the opposite side portions of the shoe bottom respectively to guide the shoe for lengthwise movement to a position where the marriage:
upper on the toeend oftheshoebottom faces the presser, a pair of leaf springs arranged-itcextend lengthwise-along the sides of the shoe-toward theendof the toein converging relation for yielding engagement with the upper: on the opposite sides of the toe-to'positiomthe-shoelaterally when it is thus-presented; an end: gage for determining theposition of theshoe lengthwise by engagement with its'toeend face,= and means for effecting relative movement of: the presser and the shoe thus positioned to cause the presser to press the uppei' on-the-shoe: bottom.
11. In a-machine for operating'on shoes; the combination with adevice for performing an operation on the toe end of a shoe, of: means for positioning the shoe-relatively to said device comprising a pair of separate leaf springs arranged to extend lengthwise along the-sides of the shoe toward the end of the toe in-suchconvergirrgrelation as to be forced apart by engagemen-toi the upper therewith at the opposite sides of the toe respectively as the shoe is moved lengthwise between them;
12. In a machine for-operating on shoes, the combination with means for. performing an operation on a shoe, of a-pairot-rolls-arranged to engage thecpposite side portions of thebottom of the shoe respectively to guide-the shoe for lengthwise movement lute-position to =bethus operated 'on,- said rolls being yieldingly -movable in a direction heightwiseof the shoe i-nresponseto pressure of the shoe thereon.
13. In a machine for operatingon shoes, a presser constructed and arranged to engage-theupper on the bottom of the toe-end portion of a shoe presented thereto by the operatorafter the toe-lasting operation, a shoe-restarra'ngedto en-' gagethe top of the -forepart of th'eshoe', and power-operated means controlled by-the shoe -for effecting relative movement of said presser and shoe rest to cause thepresser to press the upper on the shoe bottom in responseto the-presentation of the shoe thereto;
14. In a machine for operating on shoes,-apresser constructed and arranged to engage theupper on the bottom of the toe-end portion of'a shoe presented thereto by the operator after the toe-lasting operation, a shoe-rest arranged to en gage the top of the-forepart-of the shoe,- poweroperated means for effecting relative movement of said presser and shoe rest to cause the presser to press the upper on the-sh0e'bott0m, and electrical means controlled by-the shoe for rendering said power-operated m eans'thus operative in re-- sponseto the presentation of theshoe:-
15. In a machine for operating-on shoes, a presser constructed and arranged to' engage-theupper on the bottom of thetoe-end portion ofa shoe presented thereto'bythe operator aiterthetoe-lasting operation, a shoerest'arrangedtoengage the top of the forepart of the shoe; fluidoperated means for movingsaid shoe rest heightwise of the shoe to force the shoe-*again'st' the presser and thus to cause the presserto press the upper on the shoe bottom, a member-arranged to be engaged by the-toe-end face of the shoe when it is presented, and electrical means controlled by said member for admitting: operating fluid to-saidfiuid-operated means in response to the presentation of the shoe;
16; In a machine for operating on shoes, a presser constructed and arranged to'engage the upper on the bottom' of the toe-end'portlontof 'a' shoe presented thereto by the operator after the. toe-lasting operation, a shoe-rest arranged'to en'- presser constructed and.
gage the top of the iorepart oi the shoe, poweroperated: means for effecting relative movement oi-saidtpresser and'shoe rest to "cause the presser to press the'upper on .the shoebottom, a member arranged to be engaged by; the toe-end. face 0f.the:sh0e, electrical means including a switch arranged :to .be closed by pressure of the shoe on said member to render said power-operated means thus operative, and mechanism movable byusaidpower-operated means'to insure against opening of said switch in the event of any lengthwisedisplacement of the shoe when the pressure is appiied'thereto.
17'. In a machine for operating on shoes, a arranged to engage the upper on the bottomofthe toe-end portion of a shoe presentedtheretoby the operator after the toelastingt operation,. a. shoe rest arranged to engage the top of the iorepart of the shoe, poweroperated mean's for. efiectingnrelative movement of saidnpressertand shoerest to cause the presser to'preSs the upper onthashoe bottom, a member arrangedtobe engaged by the toe-end face of the shoe, electrical means including a switch arranged to be closed bypressure of theshoe on said member to render said power-operated means thus operative, and mechanism movable by said-power-operated means to apply closing force to said switch independently of the shoe and thus-to. prevent opening of the switch in the event of any lengthwise displacement of the shoe when the pressure is applied thereto.
' '18-. In a machine foroperating on shoes, power-operated means for performingan operationon ashoe, a member arranged to be engaged by theshoe, electrical means including a switch arranged to be closed by'pressure of the shoe onsaid member torender said power-operated means thus operative, and additional power-operated means for insuring'independently of the shoeagai-nst opening of said switch when the shoeis thus operated on.-
19: In amachine'for operating on shoes, poweroperatedmeans for performing an operation on a shoe, a member arranged to be engaged by the shoe, electrical means including a switch arranged to be closed by pressure of the shoe on said member to render said power-operated means thusoperative; and automatic'means for applying closing 'force to saidswitch independently of the shoe-to insure against openingof the switch when the shoe is thus operated on.
20: Ina machine 'foroperating 'on shoes, means for'lasting the'toe-endportion' of a shoe in a cycle of automatic-operations of themachine, pressing means arranged to receive the shoe after the-toe-lasting-operation and to apply pressure to the margin of the-toe end of the upper on the shoe bottom independently of a cycle-of operations of the' machine, and'automatic means for effecting the'release-cf the shoe from said pressing means by'the next-cycle of operations of the machine; I
21. In'a'machine-foroperating on shoes, means for lasting the-toe-end portion of a shoe in a cycle of automatic operations of the machine,- pressing meansarranged to receive the shoe after the toelastingoperation and to apply pressure to the margin of the toe end of the upper on the shoe bottom independently-of a cycle of operations of themachine; electrical means including a'solenoid forrendering said pressing means on the'shoe'only' as longas the solenoid is energized; and" automatic'mean's for breaking 1 the electrical circuit of the solenoid by the next cycle thus efiective of operations of the machine to effect the release of the shoe from the pressing means.
22. In a machine for operating on shoes, means for lasting the toe-end portion of a shoe in a cycle of automatic operations of the machine, a presser for thereafter pressing the margin of the toe end of the upper on the shoe bottom independently of a cycle of operations of the machine, a shoe rest for forcing the shoe against said presser, means for thus operating said shoe rest in response to presentation of the shoe to the presser, and automatic means for causing the shoe rest to release the shoe by the next cycle of operations of the machine.
23. In a machine for operating on shoes, means for lasting the toe-end portion of a shoe in a cycle of automatic operations of the machine, a presser for thereafter pressing the margin of the toe end of the upper on the shoe bottom independently of a cycle of operations of the machine, a shoe rest movable to force the shoe against said presser, fluid-operated said shoe rest, electrical noid for rendering said fluid-operated means thus operative in response to presentation of the shoe to the presser and for maintaining it efiective on the shoe rest only as long as the solenoid is energized, and automatic means for breaking the electrical circuit of the solenoid by the next cycle of operations of the machine to cause the release of the shoe by the shoe rest.
means for thus moving means including a sole- 24. In a machine for operating on shoes, at
presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being constructed and arranged to extend inwardly over the shoe bottom at the end tance less than the width of the lasting margin of the upper, a shoe rest arranged to engage the top of the forepart of the shoe, means supporting said presser and shoe rest in predetermined relation to each other to receive the shoe presented initially with the upper on the margin of the shoe bottom facing the presser, means for effecting relative movement or said presser and shoe rest to clamp and hold the shoe between them, and a cutter movable to trim off at the toe surplus marginal upper material extending beyond the presser while the shoe is so held.
25. In a machine for operating on shoes, at presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being constructed and arranged to extend inwardly over the shoe bottom at the end of the toe a distance less than the width of the lasting margin of the upper, a shoe rest arranged to engage the top of the forepart of the shoe, means supporting said presser and shoe rest in predetermined relation to each other to receive the shoe presented initially with the upper on the margin of the shoe bottom facing the presser, means for effecting relative movement of said presser and shoe rest to clamp and hold the shoe between them, and a cutter movable bodily lengthwise of the shoe along the shoe bottom toward the end of the toe to trim ofi surplus marginal upper material extending beyond the presser while adjacent portions of the upper are held by the presser against the thrust of the cutter.
25. In a machine for operating on shoes, a presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being constructed and arranged to extend inwardly over of the toe a dis-' 'means for effecting relative presser and shoe rest to clamp and hold the shoe between them, and a cutter movable along said the top of the bottom at the end of the width of the lastingmargin of the upper, said arranged to engage the top of the forepart of the shoe, means supporting said presser and shoe rest in predetermined relation to each other to receive the shoe presented initially with the upper on the margin of the shoe bottom facing the presser, movement of said flexible presser in contact therewith to trim off surplus marginal upper material extending beyond the presser while the shoe is so held.
27. In a machine for operating on shoes,a
presser for engaging the upper on the bottom of i the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser betion to each other to receive the shoe presented initially with the upper on the margin of the shoe bottom facing the presser, means for efiecting relative movement of said presser and shoe'rest' to clamp and hold the Shoe between them, a cutter movablealong said presser to trim of]? surplus material extending beyond the marginal upper presser while the shoe is so held, and means for yieldingly urging said cutter heightwise of the shoe toward the presser in the upper-trimming operation.
28. In a machine for operating on shoes, a
presser for engaging the upper on the bottom of the toe-end portion of a shoe presented thereto after the toe-lasting operation, said presser being constructed and arranged to extend inwardly over the shoe bottom at the end of the toe a distance less than the width of the lasting margin of the upper, a shoe rest arranged to engage forepart of the shoe, means supporting said presser and shoe rest in predetermined relation to each other to receive the shoe presented initially with the upper on the margin of the shoe bottom facing the presser, means for effecting relative movement of said presser and shoe rest to clamp and hold the shoe between them, a cutter for trimming off at the toe surplus marginal upper material extending beyond the presser while the shoe is so held, and a support for said cutter movable about an axis extending widthwise of the shoe to impart to the cutter bodsaid support being thereafter reto return the cutter.
trim the upper, versely movable 29. In a machine for operating on shoes, a
presser constructed and arranged to engage the upper on the bottom tion of a shoe but to extend inwardly over the shoe the toe a distance less than presser being flexible to permit it to bend and thus to'conform to the contour of the shoe bottom, and a cutter movable along the shoe bottom in engagement with said presser irrespective of the bending thereof to trim off surplus marginal upper material extending beyond the presser.
30. In a machine for operating on shoes, a presser constructed and arranged to engage the upper on the bottom of the lasted toe-end pormg constructed and arranged to extend inwardly of the lasted toe-end porti'on oi a shoe but to extend inwardly 'overithez shoe bottom-at the end of the mesa? distanceilessv than the' width of the lasting-'marginiof'; the-:up per; a cutter movable'lengthwise of therslioe along 2Q presser-rconstructed and arranged to engage the upper on the bottom'of the lasted toe-end portion-of: a shoe:but' toextend inwardly over the shoe:bottom'at the end of the toe a distance less the shoe bottom': toward the end of: the toe to than the width of the lasting margin of the upper,
trim ofi surpius marginal upperimaterialiextend ing beyond the presser, and .meanszfor'yieldingly' urgingh'said' cutter heightwisesdffthe'rshoe toward the presser in theiupper=trimming operation;
312 In a machine for operating 'on' shoes apresser: constructed and arranged. to: engagethe upper on the bottom of the lasted .toe:-endipor=- tion of a shoe: but to: extend inwardly overt'the shoe bottom at the" end of the toera; distance less than the width of theilastingmargmzof the upper, saidi:presserrbeingaflexible toipermit it to conform to the contour'of: the: shoebottom; a" cutter movable lengthwise "of the shoe along: the shoe bottom toward the. end LOf-thBEtOEtOT trim :oft sur plus marginal upper: material '.'extending..i:beyond thei presser, and =means forfyieldinglyaurging" said cutterheightwise of the:shoetoward the presser to maintain it incontact'rtherewith.in' the up= pen-trimming operation.
32; In a machine for operatin'g:-on =shoes,..a V 5 presser'. constructed andarranged to engage? the upper on the bottom :of the lastedi toe -end per tlon' of a shoe "but to extend: inwardiyo'verthe shoe bottom at the end'oi the toe'a distance less than :thewidth: of the lasting marginrof: the upper acutter for trimming'offIat-rthe toe surplus marginal upper material 'extending beyond 'the' presser, and" a support r for said cutter: movable:
about? an.-axi's "extending widthwisesof" thershoe to impartto the cutter 'bodily movementrlength wise of the shoe along the shoe bottom towardzthes end ofthe toe'thus'tortrim the upper, saidtfsupp'ort being .thereafterrreversely 'movableito. return thecutt'er.
a-cuttertfor trimming off at the toe surplus marginal upper material extending beyond the presser,iasupport for said cutter movable about antaxis extending widthwise of the shoe to carry .'10"'the cutter heightwise of the shoe toward the presser' and then lengthwise of the shoe along theshoebottom toward the end of the toe thus to trim the. upper, a holder for the cutter mounted on said support for swinging movement height- 5: wisexoiithe shoe about anaxis extending widthwiseofthe shoe, springmeans arrangedto act onisaidtholder to urge the cutterheightwise of the shoertoward the presser and to maintainthe cutter: in:contact with the presser in the uppertrimming: operation, and means on said holder for engaging the presser to prevent contact of the-cutter with the'presser until after said support-has received a portion'orits swinging'movement.
, 36.'.In' amachine for'operating on shoes, 'a cutter movable relatively to a shoe' to trim ofi the surplusmargin ofthe toe-end of the upper, meansrfor moving said'cutter bodilythus'to' trim theunner, an ejector for-engaging the waste :gozmaterial removed from the upper, and means for moving said ejector relatively to the cutter inthesame direction as the trimming movement Of thBJ'C'LIttEI to eject the waste material.
'-37.;In a' machine 'for operating on. shoes, 135: :cuttermovablerelatively to a shoe to trim off the surplusmargin'of the toe'endof the'upper, means formoving said' cutter bodily thus to trim the upper 'an ejector for engaging the waste material removed from the upper, and means for 33. In: a' machine'for operating: onv shoes, 2.. 40. moving:said ejector with the cutter in thesupperpresser-constructed andarranged to: engage: theupper on thebottomof therlasted toe=end portion trimmingoperation and for thereafter moving itfarther'in the same directionrelatively to'the cutter-to:eject' the waste material.
38."In. a machine for operating on'shoes, an
the'widtir of the'lastingamargimof the upper, 62.145 upper-trimmingcutter, a support for said cutter cutter for: trimming off at: the toe: surplus-:mar-- ginal upp'er material extendingrbeyondthe presser, a-support for sai d cutter' movable torcarry'the' cutter bodilylengthwise of the shoe along: the shoe bottomtoward= the endof the toe thust'o trim-the upper. aholdei' for'saidzoutter movably mounted on said support; :andspring TIHESMSFZI- ranged to 'act on saidholde'r to maintain the cutter'yieldinglv in contact with'thecpresser inuthe' upperetrimming operation 34; In a-- machine- 'for operating -onshoes; a pressen constructed and arranged: to engagerth-e' upper on t e bottom" of thelasted toes-end portionof a shoe but to'extend inwardly over: the shoe bottom at the and ob 1711871708 a-distancefless than the width of I the lasting margin: of: the uppen; a cutter for: trimming off at 'the toa surtheflpresser, a support *forsaidcutter movable the upper, and-a support for said ejector movable aboutthe same axis as said cutter support to causethe'ejectorto eject the waste-material.
39; In a machine for operating on shoes, a cutter movable relatively to' a shoe to trim of! ":-ithe-surplus margin of the'toe end of the'upper,
means formovingisaid cutter bodily thus'to trim theguppernand for thereafter moving it reversely to starting position, an ejector for engaging the waste-material removed from the upper, and
0: means'for moving said" ejector in the same direction' as.the' trimming movement of the-cutter'to eject." the waste material in the course of the reversermovement of the cutter.
-40.-In' a machine for operating on shoes, an
about! arr-axis extending 'widthwise of the shoer'toupp r trimmin ut a upp f sa d utt meansrarranged ato act-on said: holder' to urgerthe cutterheightwiseofthe shoe toward the presser in the upper-tri mmingoperation.
movable' relatively to a shoe to cause-the cutter to :trim off the surplus'margin of thetoe. endof the upper and thereafter reversely movable to starting position, an ejector for engaging the '70 waste material removed from the upper, and
.35HIn'a machine: for operating: onsshoeana iupper-trimming cutter, asupport for said cutter movable to carry the cutter bodily lengthwise of a shoe to cause it to trim off the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector for engaging the waste material removed from the upper, and mechanism connected to said ejector for moving it in the same direction as the bodily trimming movement of the cutter to eject the waste material in response to the reverse movement of said cutter support.
42. In a machine for operating on shoes, an upper-trimming cutter, a support for said cutter movable relatively to a shoe to cause the cutter to trim off the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector for engaging the waste material removed from the upper, mechanism connected to said ejector and movable with the cutter support in the upper-trimming operation, and means for operating said mechanism to move the ejector away from the cutter in the same direction as the trimming movement of the cutter to eject the waste material in response to the reverse movement of said cutter support.
43. In a machine for operating on shoes, an upper-trimming cutter, a support for said cutter movable relatively to a shoe to cause the cutter to trim off the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector for engaging the waste material removed from the upper, mechanism connected to said ejector and movable with the cutter support in the upper-trimming operation, and a device into operative relation to which said mechanism is thus movable for causing it to operate the ejector to eject the waste material in response to the reverse movement of the cutter support.
44. In a machine for operating on shoes, an upper-trimming cutter, a support for said cutter movable relatively to a shoe to cause the cutter to trim oif the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector movable with the cutter for engaging the waste material removed from the upper, mechanism connected to said ejector and movable with the cutter support in the upper-trimming operation, means for operating said mechanism in response to the reverse movement of the cutter support to cause the ejector to eject the waste material and for then releasing the mechanism, and spring means for returning the ejector to its initial position relatively to the cutter when the mechanism is thus released.
45. In a machine for operating on shoes, an upper-trimming cutter, a support for said cutter movable about an axis extending widthwise of a shoe to cause the cutter to trim oiT the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector for engaging the waste material removed from the upper, a support for said ejector movable about the same axis as said cutter support, and means for thus moving said ejector support to cause the ejector to eject the waste material in response to the reverse movement of the cutter support.
46. In a machine for operating on shoes, an upper-trimming cutter, a support for said cutter movable about an axis extending widthwise of a shoe to cause the cutter to trim off the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector for engaging the waste material removed from the upper, a support for said ejector movable with said cutter support about the same axis in the upper-trimming operation, and means for moving said ejector support farther in the same direction about said axis to cause the ejector to eject the waste material in response to the reverse movement of the cutter support.
47. In a machine for operating on shoes, an upper-trimming cutter, a support for said cutter movable about an axis extending widthwise of a shoe to cause the cutter to trim off the surplus margin of the toe end of the upper and thereafter reversely movable to starting position, an ejector for engaging the waste material removed from the upper, a support for said ejector movable with said cutter support about the same axis in the upper-trimming operation, mechanism connected to said ejector support and movable with it, and a device into operative relation to which said mechanism is carried in the uppertrimming operation for operating said mechanism to cause the ejector to eject the waste material in response to the reverse movement of the cutter support.
48. In a machine for operating on shoes, means for lasting the toe-end portion of a shoe in a cycle of automatic operations of the machine, means constructed and arranged to receive the shoe after the toe-lasting operation and to clamp and hold the shoe independently of a cycle of operations of the machine, a cutter for trimming off the surplus margin of the toe end of the upper while the shoe is so held, and automatic means for operating said cutter thus to trim the upper under control of the next cycle of operations of the machine.
49. In a machine for operating on shoes, means for lasting the toe-end portion of a shoe in a cycle of automatic operations of the machine, means constructed and arranged to receive the shoe after the toe-lasting operation and to clamp and hold the shoe independently of a cycle of operations of the machine, a cutter for trimming oh the surplus margin of the toe end of the upper while the shoe is so held, power-operated means for operating said cutter thus to trim the upper, and automatic means for initiating the operation of said power operated means by the next cycle of operations of the machine.
50. In a machine for operating on shoes, means for lasting the toe-end portion of a shoe in a cycle of automatic operations of the machine, means constructed and arranged to receive the shoe after the toe-lasting operation and to clamp and hold the shoe independently of a cycle of operations of the machine, a cutter for trimming oif the surplus margin of the toe end of the upper while the shoe is so held, fluid-operated means for operating said cutter thus to trim the upper, and automatic means for admitting operating fluid to said fluid-operated means by the next cycle of operations of the machine.
51. In a machine for operating on shoes, means for lasting the toe-end cycle of automatic operations of the machine, means constructed and arranged to receive the shoe after the toe-lasting operation and to clamp and hold the shoe independently of a cycle of operations of the machine, a cutter for trimming oil" the surplus margin of the toe end of the upper while the shoe is so held, power-operated means for operating said cutter thus to trim the upper under control of the next cycle of operations of the machine, and additional automatic means for efiecting the release of the shoe from said portion of a shoe in ashoe after the toe-lasting operation and:to.c1amp' and hold the shoeindependently ofv a cycle of operations of the machine, a cutter for trimming off the surplus margin of the toe end of the upper while the shoe isso held; fluid-operated means for operatingsaid cutter thus' to trim the upper, means for admitting operating fluid to said fluid-operated means and for thereafter releasing the fluid therefrom by the next cycle of 1,753,406
operations of themachine and additional automatic means for effecting therelease of the shoe from-said clamping means also by the next cycle of operations of themachine.
BERNHARDT JORGENSEN.
REFERENCES CITED The following references are of record in the 1 file of this patent:
UNITED STATES PATENTS Number Name Date 1,694,449 Ricks et a1. Dec. 11, 1928 Finn Apr. 8, 1930 Certificate of Correction Patent No. 2,437,696. March 16, 1948.
BERN HARDT J ORGEN SEN It is hereby certified that errors appear in the printed specification of the above numbered patent requiring correction as follows: Column 9, line 50, for the word received read removed; column 12, line 8, for lever read levers; column 14, line 63, for pressure read presser; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Oflice.
Signed and sealed this 12th day of October, A. D. 1948.
THOMAS F. MURPHY,
Assistant Commissioner of Patents.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646582A (en) * 1949-06-23 1953-07-28 United Shoe Machinery Corp Machine for operating on shoes
DE1037321B (en) * 1955-11-30 1958-08-21 Schoen & Cie G M B H Method for gluing the heels of footwear and the machine for carrying out the method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1694449A (en) * 1921-01-12 1928-12-11 United Shoe Machinery Corp Apparatus for use in assembling uppers and insoles
US1753406A (en) * 1928-08-09 1930-04-08 United Shoe Machinery Corp Trimming machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1694449A (en) * 1921-01-12 1928-12-11 United Shoe Machinery Corp Apparatus for use in assembling uppers and insoles
US1753406A (en) * 1928-08-09 1930-04-08 United Shoe Machinery Corp Trimming machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646582A (en) * 1949-06-23 1953-07-28 United Shoe Machinery Corp Machine for operating on shoes
DE1037321B (en) * 1955-11-30 1958-08-21 Schoen & Cie G M B H Method for gluing the heels of footwear and the machine for carrying out the method

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