US1104016A - Jack for shoe-machines. - Google Patents

Jack for shoe-machines. Download PDF

Info

Publication number
US1104016A
US1104016A US232953A US1904232953A US1104016A US 1104016 A US1104016 A US 1104016A US 232953 A US232953 A US 232953A US 1904232953 A US1904232953 A US 1904232953A US 1104016 A US1104016 A US 1104016A
Authority
US
United States
Prior art keywords
last
band
shoe
toe
jack
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US232953A
Inventor
Edward A Stiggins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
USM Ltd
United Shoe Machinery Co AB
Original Assignee
United Shoe Machinery Co AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Shoe Machinery Co AB filed Critical United Shoe Machinery Co AB
Priority to US232953A priority Critical patent/US1104016A/en
Application granted granted Critical
Publication of US1104016A publication Critical patent/US1104016A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D23/00—Single parts for pulling-over or lasting machines
    • A43D23/02—Wipers; Sole-pressers; Last-supports; Pincers
    • A43D23/025—Last-supports

Definitions

  • This invention relates to jacks for shoe machines and particularly to jacks for use in connection with lasting machines.
  • the invention is herein shown as embodied in a jack adapted especially for use in connection with the type of machine known as the Hand Method Lasting Machine, an example of which is shown in my pending application Serial No. 127,116, filed October 18, 1902, of which this application is a division and which matured into U. S. Letters Patent No. 1,081,872 on Dec. 16, 1913.
  • the object of the invention is to provide an improved shoe-supporting jack by the use of which shoes can be lasted much better and with less labor than has heretofore been possible. It has become the custom to use in many grades of shoes straight counters or heel stiffeners, that is, counters which are provided with straight flange portions in stead of counters which are provided with molded flanges, and to last the shoe by bend ing or breaking the flange portion down upon the innersole in the same operation in which the upper material is laid over the innersole.
  • the advantage of thus breaking down the flange of each counter during the lasting operation is that the counter is thereby conformed to the particular last on which the shoe is being made, and a better fit of the shoe is obtained. 7
  • An important feature of my improved shoe-supporting jack consists in means by which the counter portion of the shoe is caused to conform accurately to the corresponding portion of the last.
  • a difliculty which develops in breaking down the counter flanges of shoes by machines as heretofore constructed is that when the flange is bent and broken over upon the innersole the body-portion of the counter is sprung away,
  • the jack of the present invention is arranged to clamp the shoe between toe and heel embracing bands, and the heel-band is so constructed that it will conform to the shape of the counter portion of the last, so that when the shoe is inserted in the jack and the heel-band is brought into position about the heel portion ofthe shoe, the counter is securely clamped between the band and the last and cannot spring away from the last during the breaking-down operation.
  • the heel-band is also supported on peculiarly shaped spring arms which cause said band to embrace and clamp the sides of the heel end of the shoe and force the shoe to conform accurately to the shape of the last at the end portions of the counter.
  • Another feature of'the new jack consists in means for preventing the formation of wrinkles in the toe portion of the shoe by the upper manipulating devices during the lasting operation. It has been found very difficult in lasting shoes made of certain kinds of leather to avoid forming fine wrinkles in the leather while stretching it with the grippers, particularly at the toe portion of the shoe. To overcome this the jack of the present invention is provided with means for wiping and stretching the upper over the whole of the toe portion of the last at the same time, and then clamping and holding the upper around said toe portion of the last until it is secured in position by the lasting and securing devices.
  • the jack has a last-pin so mounted as to permit the last to be tipped slightly in a longitudinal direction toward the heel, and thereafter the last, coming into contact with the heel-band, is held against further longitudinal movement, and because of the binding of the last against the last-pin and the clamping of the shoe by the heel-band the last is also held against upward movement during the wiping and stretching of the upper over the toe portion of the last.
  • the means herein shown for thus wiping and stretching the upper over the toe portion of. the last is a toe-band which is arranged and actuated to first with the upper on the underside of the -toe portion of thein verted last and to tip the last upwardly. and backwardly vwithin the heel-band.
  • the toe-band Wipes up along the toe portion of the shoe and over the toe end of; the last so as to stretch the upper, and thenv embraces the toe portion of the upper thus stretched around the toe of the last and holds such portion of the upper clamped in this position, -The toe-band thus acts to last partially the toe portion of the shoe as it wi es the upper over the last, and there'- While the movement of the toeband up- Wardly along the forwardly inclined face of the toe end of a'shoe will "of course force the shoe rearwardly toward and into the heel-band, this result is greatly facilitated by actuating thetoe-band rearwardl'yas well as upwardly while it is in engagement with i the toe end of the shoe, and to this end a further feature of my invention consists in imparting to the toe-band during its movement into clamping engagement with the toe end of the shoe a movement rearwardlyor toward the heel-band for forcing the shoe firmly into the '
  • this is effected by 'so'connectin-g the toe-band to the toe-rest that after said band and rest both come into firm engagement with the shoe the toe-rest will act as a fulcrum about which the toe-band will turn upwardly and rearwardly for forcing the shoe toward the heel-band a tthe same time that the upper is wiped toward the bottom of the last.
  • the toe-rest and toeband are'attached to a rigid'carrier which is pivotally'connected to an actuator "shown as a post arranged for longitudinal movement only.
  • the plv'otal connection permits the carrier to rock upon the post until the'rest and band "have each become seated against the shoe and the shoe-hasinoved rearwardlyi into the heel-band.
  • The' resistance which the yielding support for the heel-band offers to a further rearward movement of the shoe then checks the free tipping movement of the shoe, and in the further rise of the post the toe'srest becomes a fulcrum about which the carrier and toe-band turn as the hand rocks upwardly and rearwardly for effect-1 ing the doubl'e purpose of wiping'the upper toward the last bottomand fo'rcingthe shoe backwardly into the heel -'band.
  • the toe band and the heel band may be considered tobe lasting devices because'they perform l'ast-' ing functions in shaping the shoe stock'to the last as will herein mo-refullyappear.
  • the lasting means for the opposite ends of the shoe are mounted to permit a relative movement between them for adaptation to right and left crooked lasts.
  • the advan tagesof this mounting will be readily apparent.
  • Themovement is curvilinear about an axis which is located under the last between the toe and vheel bands and at a substantial distance from the ends o f' the last.
  • the toe band is the movable lasting means, its carriage being mounted to turn about a vertical axis in the longitudinally movable toe post before mentioned as supportii'ig thecarriage.
  • the pivotal connection between the band carriageand the post is here shown as located at substantially the center of the toe band which is equivalent to the approximate center of curvature of-the toe end of the last.
  • the invention is'notf limited to "the exact location.
  • the I toe-rest is pivotally connected tojits carrier so that it may rock to seat itselfsquarely upon the portion of shoe engaged by it and so that in the rearward movement of the shoe it may move with the shoe, thus avoiding the friction which might otherwise be produced by the shoe sliding over the rest.
  • my improved jack consists in mounting the last-pin so that it may tiptransversely of the length of the. jack.
  • the holes for the last-pin are inclined laterally and when the last is supported on afvertical pin ofa jack, one side of the last bottom ishigher than the other side.
  • the last-pin should be capable of tipping about a center which is at or near its upper end and I have therefore mounted the pin in'a carrier adapted to slide in suitable gu'ideways to give the pin the desired movement.
  • Another feature of the invention consists in means for adjusting the toe-band to adapt it to fit lasts which are so shaped that the bottom of the forepart is higher on one side than on the other. It is found that some lasts are so formed that the plane in which the bottom of the forepart lies is not parallel with the plane in which the bottom of the v heellies, but is inclined thereto in a direction transverse of'the last; in other words,
  • the last is twisted.
  • the forepart of the last on one side extends above or below the planein which the top "of the toe-band is positioned, and the shoe therefore cannot be'presented properly to the lasting machine.
  • this object is accomplished by movably connecting one end of the toe-band to its support, whereby that end of the toe-band can be raised above or depressed below the normal plane in which the top of the toe-band lies to position the toeband so that its top edge will be parallel or flush with the bottom of the last all the way around the toe of the last when the toe-band is moved into operative position for embracing the toe of the last.
  • Figure 1 is a side elevation of a jack embodying the invention, a shoe being shown in the jack and presented thereby in position to be operated upon by a lasting machine.
  • Fig. 2 is a side elevation of the jack partly in section and shows the relative positions occupied by a shoe and the several parts of the jack prior to the actuation of said parts for jacking the shoe.
  • Fig. 3 is a similar view showing the relative positions of the several parts when the shoe has been jacked.
  • Fig. 4 is a plan view of the jack and shows in outline the position of the toeband and heel-band when a right shoe is clamped in the jack.
  • Fig. 5 is a perspective view of the last-pin and its supporting means.
  • FIG. 6 is an enlarged detail of a section on line 6-6 of Fig. 1.
  • Fig. 7 is a vertical longitudinal sectional view through parts shown in Fig. 1.
  • Fig. 8 is a detail showing contrasting positions, and
  • Fig. 9 is a transverse sectional detail.
  • the jack comprises a base plate 1 upon which is guided the carriage 2 for supporting the toe-rest 4t and toe-band 6 and the carriage 8 for sustaining the last-pin 10 and the heel or counter-embracing band 12.
  • carriages are adjustable toward and from each other for shortening or lengthening the jack by a right and left threaded screw 14; which is secured against longitudinal movement in the base plate and is provided with an operating crank 16.
  • the heel carriage 8 has cars 18 between which is pivoted a support 20 for the lastpin 10.
  • the lower face of the support is formed, as shown in Figs. 2 and 5, to have limited rocking movement about its pivot and the spring plunger 24.- is arranged in a socket at the rear of the pivot to rest on the carriage and hold the support and last-pin normally tipped forward. This positions the last-pin sufliciently away from the heel-v band, as shown in Fig. 2, to enable the last to be readily placedupon the last-pin and pin.
  • the support 20 is shaped, as shown in Fig. 5, toprovide two curved guideways 26 and 27 adapted to receive respectively a rib 28 and the end portion 29 of a block 30, which is formed with a socket in which the last-pin is yieldingly' upheld by a spring 32.
  • the guideways 26 and 27 are concentric, being formed upon curves which have their center at a point near the upper end of the last- This construction enables the last-pin to rock transversely of the jack to compensate'for any inaccuracy in the direction of the pin hole in the last.
  • the carriage 8 is provided on either side with ears 34 to which are pivotally connected the opposite ends of a U-shaped casting 36.
  • the casting has upwardly extending arms 38 and to these are rigidly secured springs 410 which are curved and twisted, as shown in side and end elevations in Figs. 3 and 4.
  • the heel-band 12 is pivotally connected at its ends to the upper ends of the springs 40 and to the rear portion of the heel-band is secured the upper end of a resilient brace 42 extending downwardly to the carriage.
  • the casting is adapted to be adjusted about its pivotal connection with the ears 34 for moving the heel-band forwardly or backwardly with relation to the last-pin by means of the screw 14 carried by the casting and adapted to bear upon the carriage.
  • the heel-band comprises an outer layer or strap a of strong, tough leather, an inner layer Z) of hard, firm, wear-resisting leather, and an intermediate piece 0 formed wedge-shape in cross-section and serving to shape the band so that it conforms to the vertical curvature of the heel portion of the shoe.
  • an intermediate piece 0 formed wedge-shape in cross-section and serving to shape the band so that it conforms to the vertical curvature of the heel portion of the shoe.
  • a strip cl of spring metal which serves to support and give rigidity to the inner layer of hard leather and to give resiliency to the heelband as a whole.
  • the outer layer 64 gives the band the requisite strength and 11X1- bars 15, is pivotally connected as herein" shown to the heel-band supports 40, the outer ends of the bars being joined by a cross-piece which constitutes a handle.
  • a yoke-shaped member 16 is connected at its ends to the lever and is adapted to extend over the heel of the shoe which has been applied to the last-pin ready to be jacked.
  • the upper end of the yoke is provided with an adjustable contact member 17 for engaging the heel portion of the innersole of the shoe whenthe yoke is in its operative position.
  • the pivotal connections between the yoke and the lever are so located that when the lever is depressed from the position shown in Fig. 2 toward the full line posi tion shown in Fig.
  • this construction comprising the yieldingly supported last-pin and the depressing means'constitutes a convenient arrangement by which lasts differing in thickness may be posis tioned at the proper altitude with relation to the "heel-band and will beheld in such 'positionwhile the operation jacking the shoe is carried out.
  • the carriage 2 at the front of the jack is provided with a guideway extending upwardly and forwardly to receive a post 50.
  • a carrier 52 is connected by vertical and horizontal pivots to the upper endof the post, the vertical pivot being. advantageously located substantially at the center of curvature of the toe portion of the last when a shoe is in the jack, as at 51 in Figs. 9 and i, and comprises a rearwardly extending arm 5t and depending outwardly inclined arms 56.
  • the toe-rest 4 is pivotallysupported upon the arm 54 and is provided with a depending finger 58 which is engaged by a,
  • the spring 60 secured to thecarrier.
  • the spring 60 holds the rest normally in its most advanced position, but perm-its itto rockirearwardly during the operation of jacking the shoe, as will be described. To the dependband.
  • this adjustable connection comprises an eccentric bushing 64 mounted on a pivot stud 66 and received in a circular aperture in theupper end of the arm 68 of the holder.
  • the toe-band may f thus be adjusted to position its opposite side portions at different levels to locate its edges relation to the holder.
  • the eccentric bushing has a finger piece by means of.
  • the post 50 is arranged to be moved longitudinallyjin the carriage 2 for raising and lowering the toe-rest and toe-band,,and to this end the 4 post is provided, as shown, with rack teeth which are'e'ngaged by a pinion 70' carried by a shaft 72 which is mounted in a bearing 73 formed on theside of the carriage 2.
  • operating handle 74 is secured to the shaft 2- for turning the pinionand the handle is provided with a: pawl 7 6 adapted to engage with teeth. on a circular plate 78, secured to.
  • the handle may be lockedby the pawl 7 6 for holding thetoe-b-and in its elevated position.
  • Thesidearms of the toe-band holder 62 are formed to hold the end portions of the'band separated adistance greater than t-he'width of the widest shoe which the jack is in tended to receive.
  • the shoe is applied to the jack with the parts, excepting the yoke 46, in the position shown in Fig. 2, the'last-pin tipping transversely or longitudinally of the jack to adapt itself to any inclination of the pin hole,
  • the yoke 46 is then swung from the dotted line position shown in Fig. 3 to the fullfline position-shown in Fig. 2, and the lever 45 is moved downwardly for forcing the shoe "bac'kwardly and downwardly with relation to the heel-band until the bottom of the shoe is flush with the top of the heelband.
  • the operator thenobserves the shape of the last-, 'and i f it is a twisted last having one side of the forepart higher than the other side, he relatively adjusts the two sides of the toe band vertically by means of the eccentric 64L untilits edges on opposite j sides of the shoe lie in a transverse plane parallel with the bottom of the last and hence when the toe band-is turned into its operative position they will assume a position flush with the last on both sides.
  • the handle 74 is now depressed for inoving the carrier52 with the toe-rest and toe-band in the direction of the length of the post- 50.
  • the first effect produced by this movement is to force the shoe backwardly into the heelband, the last-pin tipping about its pivot in opposition tothe spring plunger 24: as the toe-rest and toe-band becomefirmly seated against the forepart of the shoe.
  • the band is closedby thisnioveinent about, the last below the fuller or wider portion of the shoe and the slope of the toe end face of the -'last it occupies a position with its acting edge, Fig. 2, substantially parallel with the plane of the last bottom and it maintains this relation to the plane of the last bottom while it is finally lifted to the position, Fig.
  • the movable connection between the toel'est and its support permits said rest. to move with the shoe in its backward movement, thus avoiding the friction which might otherwise be produced by the shoe being compelled to slide over the rest.
  • the backward pressure of the shoe against the middle portion of the heelband causes the spring supporting arms 40 to yield, and because of the peculiar formation of these arms with an ini ial twist as shown in Fig. 4, they twist farther as they yield, their inner ends moving toward the last and causing the end portions of the heel-band or counter-embracing-band to clamp the sides of the shoe at about the ends of the counter, whereby the of the last.
  • the resilient holder for the toe-band is so shaped that the sides of the band areheld separated far enough to receive the widest shoe for which the band is adapted, and therefore the shoe at first is engaged by the middle portion only of the band; but as the band is forced forwardly and upwardly along the toe portion of the shoe, the middle arm of the holder springs forwardly and the side arms are drawn inwardly to permit the band to adapt itself to the shape and size of the toe portion of the shoe. As the band continues to rise it therefore wipesthe whole toe portion of the upper toward the bottom of the last, thus precluding the forming of an fine wrinkles in the upper material, and.
  • the toeband engages first by its middle portion with the upper on the toe portion of the last, as shown in Fig. 2, and that during the first part of the wiping movement of the band the upper is stretched in a direction longi- Thereafter as the band conforms to the shape of the toe portion of the last, the sides, as well as the middle portion, of the band comes into engagemei'it with the upper, and in the final rise of the band the upper on the sides of the last also is wiped toward the bottom of the last.
  • the parts occupy the position shown in Fig.
  • the base 1 and the described parts carried by it are supported on a post 80, Figs. 1 and 7, to which the base is connected by a cupand-saucer joint, the cup-shaped lowerface S2 of the base inclosing a plate 83between which and the saucer-shaped head 8% of thepost clamping action, fixing thebase in angular relation to the post, is effected by a stem 85 and a lever 86.
  • a relief spring between the head of vthe stem and the plate 88. and the lever is fulcrumed on the post and is operated through a rod 87 from the driving mechanism of the machine, Figs. 1 and 7, of which the jack is herein shown to be a part.
  • the jack post 80 is sustained by a lever 90 with which it has a connection permitting tipping laterally and also forwardly and backwardly between shoe receiving position and the operative position in which the shoe on the jack is presented to theumachine.
  • the lever 90 isfulcrumed on the base of the machine at 92 and its rear arm contains asocket in which the lowerend of a strut 94; rests at a point near the fulcrum.
  • the strut extends obliquely upwardly and rearwardly to a spring chamber in the machine frame, H
  • the springs force is transmitted bythe strut with increasing directness and effectiveness, see dotted lines Fig, 8, so that the spring will hold the jack in itsjupraised position;
  • thestrut 'con stitutes a connection between the balancing spring 96 and the jack for causingthe said spring oractuator to act with lncreasmg force as the jack is moved to its operative position.
  • A'screw 97 provides for adjusting the force of the sbring '96 to balance the weightofthe jack and different shoes.
  • the jack may be intermittently locked against angular movement on the head of its post 80 and unlocked automatically through the .rod 87 which is connected by a lever 100 and rod to a rack bar 102 that meshes with r a pinion 103, Fig. 7,: having connection through a ,lever lO and rod 105"with a swinging cam arm 106, Figs, '1 and 7,, that rocked the vibrating lever 108 the upper end of which bears a roll standing in a groove in av cam blockon the driving shaft of the well known lasting machine shown a in Fig; 1.
  • PQrti-on of the cam face on arm106 will be so formedqas to maintai Z- jQ k h@ ja ri dlr n. iluraised positi n a short period'before, it low; ered aga n. 1
  • lever 104 will be vibrated without turning the. pinion 103 and when the operator closes the clutch through control; of the. knee we th P ni ill s il ts fe t l ti g,
  • a jack having a swinging downhold, and means for actuat- 1ng 1t into 13081131011 for hold ng a shoe against rearward and vertical movemer1t, comb ned; with a toe-band having a resillent support and means for raising thetoe-band and its support to cause the band to wipe the upper yieldingly along the toe portion and over the toe end of the last;
  • a jack comprising a last pin for supporting'a last, a toeband, and aresilient support to which the ends of the toe-band are secured, said support holding.
  • the toe-band normally open for the convenient insertion of a last, in
  • jack comprising means for supporting a last, and a toe-band for embracing the'toe end of the last, in, combination with, a single means for moving one side of the toes,
  • a jack comprising a support for a shoe, a band, adapted to embrace the heel portion of the shoe, and; resilient supporting arms for said band extending downwardly from the front end portions of the band and formed to hold the band normally open, combined with means for forcingthe shoe backwardly into the band wherebv the band a is automatically closed about the last against a the resistance of said resilient end supports 7.
  • a jack comprising a support for a shoe, a band adapted to embrace the heel portion of the shoe, and supporting arms for said band extending downwardly from the front ends of the band and formed to yield inwardly but to resist backward pressure to a relatively greater extent, combined with means for forcing the shoe backwardly into the band whereby the band is caused to clamp the shoe at the rear end and the sides of the heel.
  • a last supporting jack means for clamping the sides of the shoe near the ends of the counter, said means comprising resilient arms, a band connecting said arms and extending around the counter, and means for producing a relative movement of the last and the band to cause the arms to plamp the end portions of the counter to the ast.
  • a last supporting jack comprising a base, a last-pin, a heel-band, a toe-band, yieldin means for supporting said bands upon the base, and means for adjusting said bands toward and from each other, combined with independent means for moving one of said bands in a direction substantially perpendicular to the sole of the last to cause said bands to clamp a shoe around the last at the heel and toe.
  • a jack comprising a last support, a heel-band and a toe-band, means for actuating the toe-band to cause it to force the last into the heel-band, a pivoted support for said heel-band, and means for adjusting the position of said support with relationto its pivot.
  • a jack for holding a shoe, said jack comprising a counter embracing band, a rigid base, a last'pin pivotally connected to said base, and yielding means for rocking said last pin about said pivotal connection to hold it normally away from said band to facilitate the application of a last to the jack, combined with means for adjusting the normal distance between the pin and the band.
  • a jack provided with a last pin, a last pin support mounted for tipping movement longitudinally of the jack, and a block carrying said last pin and mounted for tipping movement transversely of the jack, as and for the purpose described.
  • a jack comprising means for supporting a shoe, a yieldingly supported heel-band and a toe-band, in combination with meansfor actuating the toe-band to. force the last into the heel-band and to wipe the upper into lasted-position about the toe end of the last.
  • a jack for holding a shoe to be lasted, said jack comprising a movably' mounted last pin arranged to tip transversely of the jack and a toe-band provided with means for adjusting one side vertically with relation to the other side, as and for the purpose described.
  • a jack for holding a shoe to be lasted, said jack comprising a heel-band, a movably mounted last pin arranged to tip transversely of the jack and of the heel-band, a toe-band, and means for adjusting one side of the toe-band vertically with relation to the other side, for the purpose described.
  • a jack comprising means for supporting a last, a toe-band movable into and out of operative position about the toe of the last, a flexible heel-band, and support for the heel-band, said support being constructed to cause the heel-band to clamp the last laterally when the toe-band is moved into operative position.
  • a jack for holding a shoe to be lasted, means for sustaining the shoe and means for moving the shoe rearwardly in the jack, said sustaining means comprising a toe post, means for adjusting the post vertically, a toe pad pivotally connected to the post, and means for yieldingly holding the pad rocked forwardly on the postwhen no shoe is in the jack, whereby the pad is enabled to move in the reverse direction for accompanying the shoe in its rearward movement.
  • movably sustained last pin means adapted for clamping the last, and mechanism operatively connected with the clamping means for forcing the last supported on said last pin downwardlyinto' predetermined operative relation to said clamping means.
  • a jack means for sustaining a shoe, a toe-band having relatively movable side portions, and means for actuating the band into engagement with the upper on the last and forwardly toward the toe portion of the last, said jack having provision for causing the side portions of theband to come into engagementwith the sides of the shoe during the latter part of said movement of the band over the upper on the toe portion of the last.
  • a. yieldingly sustained last pin means for clamping a last which is supported on said last pin, and means operatively connected with the clamping means for forcing the last into predetermined operative relation to the clamping means and maintaining it in such position until the last is clamped.
  • a jack for lasting machines comprising means for supporting a shoe, a toe-band, a yielding support for holding the end portions of the band normally apart and out of position for engaging the sides of a shoe, and means for actuating said toe-band upwardly and forwardly whereby the upper on the top of the toe portion of the last is a shoe against rearward and vertical move-' ment including a heel-bandand a member relatively movable thereover to engage the shoe bottom, a toe-band arranged to yield, and means whereby said toe-band may be actuated forwardly along'the toe end of a shoe and also-upwardly for wiping the up:
  • a jack comprising means for supportper toward thebottom of the last and cansing the band to clamp, the upper against the ing a shoe, a heel-band, and a toe-band, comb ned w th means for actuating the toeband first upwardly into engagement, with the shoe and then upwardly and rear wardly for forcing the shoe against the heel-band.
  • a jack comprising a last pin for sup rearwardly porting a last, a heel-band, a toe-rest, a toleband, and means for moving the toe-rest and the toe-band upwardly in engagement with the forepart of a shoe vsupported on the last pin and for thereafter moving'the toe-band about the toe-rest as a fulcrum npwardly and rearwardly against the shoe. 25.
  • a jack comprising a last pin for supporting a last, a heelband, a carrier, a toe rest and a toe-band mounted on said carrier, and means for actuating the'ca'rrier to move the toe-rest and toe-band into engagement with the forepart of a shoe and thereafter to move said carrier and .toeband about the toe-rest as a vfulcrum for forcing the shoe rearwardly into the heelband.
  • a jack comprising means for. supporting a shoe, a longitudinally movable post, a carrier pivotally connected to said post, a toe-rest and a toe-band'mounted on said carrier, andmeans for actuating the post to press the toe-rest and toe-band against the shoe, said pivotal connection ,ward the SllOQbOlJlJOID. and clamping it against the last.
  • a heel-band In a'jack, a heel-band, means for supporting the heel-band, and a yieldingly sustained last pin adapted to support a shoe,
  • a yieldingly sustained last pin adapted to support ashoe, a heel-band, and means for supporting the heel-band
  • the combination with means for sustaining a last, of atoe-band said two parts being mounted for relative movement laterally of the toe band and the last carried by the susmeans by which the levers may be rocked in a direction for forcing the heel-band against the end of the'last whereby the twisted arms are caused toclamp the ends ofthe band: against the sides of the last.
  • a jack compris'ing means for supporting a last I and an end lasting device formed to embrace the toe end of the last, in combination with I an adjuster operatively connected with said device at oneside of the jack for moving the adjacent side of said deviceto adjust it relatively to the other side of said device in the direction of the height of the last.
  • end lasting means shoe supporting means including a toe rest which is restrained from bodily lateral movement, a heel rest between which and the lasting means there is provision for relative curvilinear lateral movement about an aXis lo cated under the last and a substantial distance from the ends of the last and suitable supporting means for said heel rest and lasting means arranged to permit the specified relative movement.
  • a machine of the class described having in combination, a support including toe and heel parts on which a last is firmly upheld and a toe lasting device to engage the work about the last end below the fullest part of last, means connected with one side of the lasting device for efi'ecting adjusting move ments of said device to position its upper edge substantially parallel with the last bottom, and means to move said device relatively to the last support toward the plane of the shoe bottom past said full part of the last, said machine having provision for permitting expansion of said device throughout its length in passing said full part of the last.
  • toe embracing lasting means means for operating the same to wipe the upper toward lasted relation to the shoe bottom, and adjusting means arranged for convenient manipulation in connection with each shoe being lasted to move one side of said lasting means perpendicularly to the plane of the last bottom and relatively to a substantially fixed supporting connection for the other side of said lasting means.
  • a jack for holding a shoe, and mechanism for balancing the jack when in an upraised position, said mechanism including an actuator and a strut arranged to make an increasing angle with the direction of the force 8X- erted by the actuator as the jack is depressed, whereby the jack may be stable in its depressed position.
  • a jack for holding a shoe, a spring for raising the jack into an operative position, and connections between the spring and the jack for causing the spring to act with increasing force on the jack as the jack is moved toward its operative position.
  • a shoe bottom rest a jack for holding a shoe, and mechanism for forcing the jack upward toward the shoe rest, said mechanism comprising a lever, a spring, and a connecting device between said lever and spring arranged to apply the force of the spring to the lever with increasing directness as the jack is moved toward the shoe rest.
  • a jack for holding a shoe, means for sustaining the jack to hold the shoe in position to be operated upon, and means under the control of the operator for lifting the jack.
  • a jack In a lasting machine, a jack, a support therefor, a movable connection between the jack and its support, and means for automatic ally locking the jack upon its support and raising the jack.

Description

E. A. STIGGINS.
JACK FOR SHOE MACHINES.
APPLICATION FILED NOV. 16, 1904. RENEWED 1'33. 20, 1914.
1,104,016. Patented July 21, 1914.
3 SHEETS-SHEET 1.
Fig. 1.
ZIMK,
1: "cams PETERS co.. WASHINGTON, n c.
STIGGINS.
JACK FOR SHOE MAGHINES.
APPLICATION FILED NOV. 16, 1904. RENEWED FEB. 20, 1914. 1, 1 04,01 6.
Patented July 21, 1914.
J SHEETS-:SHEET 2.
gfzgggqfs. v
E. A. STIGGINS.
JACK FOR SHOE MACHINES.
v APPLICATION FILED NOV. 16, 1904. RENEWED FEB. 20, m4.
Patented July 21, 1911 3 SHEETS-SHEET 3,
l/V/T/VES'SESL irnn sTATEs PATENT OFFICE.
' EDWARD A. STIGG-INS, OF BEVERLY, MASSACHI TSETTSQASSIGNOR T0 UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.
TACK FOB SHOE-MACHINES.
Specification of Letters Patent.
Patented July 21, 1914.
Original application filed October 13, 1902, Serial No. 127,116. Divided and. this application filed November 16, 1904, Serial No. 232,953. Renewed February 20, 1914. Serial No. 820.047.
drawings, is a specification, like reference characters on the drawing indicating like parts in the several figures.
This invention relates to jacks for shoe machines and particularly to jacks for use in connection with lasting machines.
The invention is herein shown as embodied in a jack adapted especially for use in connection with the type of machine known as the Hand Method Lasting Machine, an example of which is shown in my pending application Serial No. 127,116, filed October 18, 1902, of which this application is a division and which matured into U. S. Letters Patent No. 1,081,872 on Dec. 16, 1913. I
The object of the invention is to provide an improved shoe-supporting jack by the use of which shoes can be lasted much better and with less labor than has heretofore been possible. It has become the custom to use in many grades of shoes straight counters or heel stiffeners, that is, counters which are provided with straight flange portions in stead of counters which are provided with molded flanges, and to last the shoe by bend ing or breaking the flange portion down upon the innersole in the same operation in which the upper material is laid over the innersole. The advantage of thus breaking down the flange of each counter during the lasting operation is that the counter is thereby conformed to the particular last on which the shoe is being made, and a better fit of the shoe is obtained. 7
An important feature of my improved shoe-supporting jack consists in means by which the counter portion of the shoe is caused to conform accurately to the corresponding portion of the last. A difliculty which develops in breaking down the counter flanges of shoes by machines as heretofore constructed is that when the flange is bent and broken over upon the innersole the body-portion of the counter is sprung away,
from the counter portion of the last, and the shoe is thereby caused to bulge outwardly at this point, instead of conforming to the shape of the counter portion of the last, as it should do. To remedy thisv difliculty the jack of the present invention is arranged to clamp the shoe between toe and heel embracing bands, and the heel-band is so constructed that it will conform to the shape of the counter portion of the last, so that when the shoe is inserted in the jack and the heel-band is brought into position about the heel portion ofthe shoe, the counter is securely clamped between the band and the last and cannot spring away from the last during the breaking-down operation. The heel-band is also supported on peculiarly shaped spring arms which cause said band to embrace and clamp the sides of the heel end of the shoe and force the shoe to conform accurately to the shape of the last at the end portions of the counter.
Another feature of'the new jack consists in means for preventing the formation of wrinkles in the toe portion of the shoe by the upper manipulating devices during the lasting operation. It has been found very difficult in lasting shoes made of certain kinds of leather to avoid forming fine wrinkles in the leather while stretching it with the grippers, particularly at the toe portion of the shoe. To overcome this the jack of the present invention is provided with means for wiping and stretching the upper over the whole of the toe portion of the last at the same time, and then clamping and holding the upper around said toe portion of the last until it is secured in position by the lasting and securing devices. The jack has a last-pin so mounted as to permit the last to be tipped slightly in a longitudinal direction toward the heel, and thereafter the last, coming into contact with the heel-band, is held against further longitudinal movement, and because of the binding of the last against the last-pin and the clamping of the shoe by the heel-band the last is also held against upward movement during the wiping and stretching of the upper over the toe portion of the last. The means herein shown for thus wiping and stretching the upper over the toe portion of. the last is a toe-band which is arranged and actuated to first with the upper on the underside of the -toe portion of thein verted last and to tip the last upwardly. and backwardly vwithin the heel-band. In so doing the toe-band Wipes up along the toe portion of the shoe and over the toe end of; the last so as to stretch the upper, and thenv embraces the toe portion of the upper thus stretched around the toe of the last and holds such portion of the upper clamped in this position, -The toe-band thus acts to last partially the toe portion of the shoe as it wi es the upper over the last, and there'- While the movement of the toeband up- Wardly along the forwardly inclined face of the toe end of a'shoe will "of course force the shoe rearwardly toward and into the heel-band, this result is greatly facilitated by actuating thetoe-band rearwardl'yas well as upwardly while it is in engagement with i the toe end of the shoe, and to this end a further feature of my invention consists in imparting to the toe-band during its movement into clamping engagement with the toe end of the shoe a movement rearwardlyor toward the heel-band for forcing the shoe firmly into the 'heel-band. As herein shown, this is effected by 'so'connectin-g the toe-band to the toe-rest that after said band and rest both come into firm engagement with the shoe the toe-rest will act as a fulcrum about which the toe-band will turn upwardly and rearwardly for forcing the shoe toward the heel-band a tthe same time that the upper is wiped toward the bottom of the last. the construction shown the toe-rest and toeband are'attached to a rigid'carrier which is pivotally'connected to an actuator "shown as a post arranged for longitudinal movement only. The plv'otal connection permits the carrier to rock upon the post until the'rest and band "have each become seated against the shoe and the shoe-hasinoved rearwardlyi into the heel-band. The' resistance which the yielding support for the heel-band offers to a further rearward movement of the shoe then checks the free tipping movement of the shoe, and in the further rise of the post the toe'srest becomes a fulcrum about which the carrier and toe-band turn as the hand rocks upwardly and rearwardly for effect-1 ing the doubl'e purpose of wiping'the upper toward the last bottomand fo'rcingthe shoe backwardly into the heel -'band.- The toe band and the heel band may be considered tobe lasting devices because'they perform l'ast-' ing functions in shaping the shoe stock'to the last as will herein mo-refullyappear.
These lasting means for the opposite ends of the shoe are mounted to permit a relative movement between them for adaptation to right and left crooked lasts. The advan tagesof this mounting will be readily apparent. .Themovement is curvilinear about an axis which is located under the last between the toe and vheel bands and at a substantial distance from the ends o f' the last. In the illustrated embodiment of the invention the toe band is the movable lasting means, its carriage being mounted to turn about a vertical axis in the longitudinally movable toe post before mentioned as supportii'ig thecarriage. The pivotal connection between the band carriageand the post is here shown as located at substantially the center of the toe band which is equivalent to the approximate center of curvature of-the toe end of the last.
The invention is'notf limited to "the exact location. Preferably the I toe-rest is pivotally connected tojits carrier so that it may rock to seat itselfsquarely upon the portion of shoe engaged by it and so that in the rearward movement of the shoe it may move with the shoe, thus avoiding the friction which might otherwise be produced by the shoe sliding over the rest.
' Another feature'of my improved jack consists in mounting the last-pin so that it may tiptransversely of the length of the. jack. In some lasts the holes for the last-pin are inclined laterally and when the last is supported on afvertical pin ofa jack, one side of the last bottom ishigher than the other side. For the purpose of adapting the jack to support such lasts in proper position, I have movably mounted the last-pinso that it may accommodate itself automatically to the inclination of the hole made for it inthe last. For the best'results in overcoming the above-mentioned difficulty the last-pin should be capable of tipping about a center which is at or near its upper end and I have therefore mounted the pin in'a carrier adapted to slide in suitable gu'ideways to give the pin the desired movement.
ice
Another feature of the invention consists in means for adjusting the toe-band to adapt it to fit lasts which are so shaped that the bottom of the forepart is higher on one side than on the other. It is found that some lasts are so formed that the plane in which the bottom of the forepart lies is not parallel with the plane in which the bottom of the v heellies, but is inclined thereto in a direction transverse of'the last; in other words,
the last is twisted. When such a last is positioned properly in the jack with theheelbandflush with theinnersole upon the last at both sides, the forepart of the last on one side extends above or below the planein which the top "of the toe-band is positioned, and the shoe therefore cannot be'presented properly to the lasting machine. To overcome this difliculty I have provided means for adjusting the toe-band to cause it to conform to the shape of such lasts. In the construction herein shown, this object is accomplished by movably connecting one end of the toe-band to its support, whereby that end of the toe-band can be raised above or depressed below the normal plane in which the top of the toe-band lies to position the toeband so that its top edge will be parallel or flush with the bottom of the last all the way around the toe of the last when the toe-band is moved into operative position for embracing the toe of the last. These features of my invention and others, including certain com binations of mechanisms and details of construction, will be set forth in detail in the following specification and pointed out in the claims.
Figure 1 is a side elevation of a jack embodying the invention, a shoe being shown in the jack and presented thereby in position to be operated upon by a lasting machine. Fig. 2 is a side elevation of the jack partly in section and shows the relative positions occupied by a shoe and the several parts of the jack prior to the actuation of said parts for jacking the shoe. Fig. 3 is a similar view showing the relative positions of the several parts when the shoe has been jacked. Fig. 4 is a plan view of the jack and shows in outline the position of the toeband and heel-band when a right shoe is clamped in the jack. Fig. 5 is a perspective view of the last-pin and its supporting means. Fig. 6 is an enlarged detail of a section on line 6-6 of Fig. 1. Fig. 7 is a vertical longitudinal sectional view through parts shown in Fig. 1. Fig. 8 is a detail showing contrasting positions, and Fig. 9 is a transverse sectional detail.
The jack comprises a base plate 1 upon which is guided the carriage 2 for supporting the toe-rest 4t and toe-band 6 and the carriage 8 for sustaining the last-pin 10 and the heel or counter-embracing band 12. The
carriages are adjustable toward and from each other for shortening or lengthening the jack by a right and left threaded screw 14; which is secured against longitudinal movement in the base plate and is provided with an operating crank 16.
The heel carriage 8 has cars 18 between which is pivoted a support 20 for the lastpin 10. The lower face of the support is formed, as shown in Figs. 2 and 5, to have limited rocking movement about its pivot and the spring plunger 24.- is arranged in a socket at the rear of the pivot to rest on the carriage and hold the support and last-pin normally tipped forward. This positions the last-pin sufliciently away from the heel-v band, as shown in Fig. 2, to enable the last to be readily placedupon the last-pin and pin.
permits the pin to be rocked backwardly when the last is forced into the heel-band during the operation of jacking the shoe. The support 20 is shaped, as shown in Fig. 5, toprovide two curved guideways 26 and 27 adapted to receive respectively a rib 28 and the end portion 29 of a block 30, which is formed with a socket in which the last-pin is yieldingly' upheld by a spring 32. The guideways 26 and 27 are concentric, being formed upon curves which have their center at a point near the upper end of the last- This construction enables the last-pin to rock transversely of the jack to compensate'for any inaccuracy in the direction of the pin hole in the last. The carriage 8 is provided on either side with ears 34 to which are pivotally connected the opposite ends of a U-shaped casting 36. The casting has upwardly extending arms 38 and to these are rigidly secured springs 410 which are curved and twisted, as shown in side and end elevations in Figs. 3 and 4. The heel-band 12 is pivotally connected at its ends to the upper ends of the springs 40 and to the rear portion of the heel-band is secured the upper end of a resilient brace 42 extending downwardly to the carriage. The casting is adapted to be adjusted about its pivotal connection with the ears 34 for moving the heel-band forwardly or backwardly with relation to the last-pin by means of the screw 14 carried by the casting and adapted to bear upon the carriage.
As herein shown, the heel-band comprises an outer layer or strap a of strong, tough leather, an inner layer Z) of hard, firm, wear-resisting leather, and an intermediate piece 0 formed wedge-shape in cross-section and serving to shape the band so that it conforms to the vertical curvature of the heel portion of the shoe. Between the inner and outer layers and fitting closely against the upper portion of the inner layer is a strip cl of spring metal which serves to support and give rigidity to the inner layer of hard leather and to give resiliency to the heelband as a whole. The outer layer 64 gives the band the requisite strength and 11X1- bars 15, is pivotally connected as herein" shown to the heel-band supports 40, the outer ends of the bars being joined by a cross-piece which constitutes a handle. A yoke-shaped member 16 is connected at its ends to the lever and is adapted to extend over the heel of the shoe which has been applied to the last-pin ready to be jacked. The upper end of the yoke is provided with an adjustable contact member 17 for engaging the heel portion of the innersole of the shoe whenthe yoke is in its operative position. The pivotal connections between the yoke and the lever are so located that when the lever is depressed from the position shown in Fig. 2 toward the full line posi tion shown in Fig. 3 the shoe will be drawn downwardly against the pressure of the spring sustaining the lastpin and also somewhat backwardly into the heel-band until its upper surface is. flush with the upper edge of the band. The location of said pivotal connection with relation to the fulcrum of the lever on the supports etO is such that the yoke is fully depressed when thelever is in approximately its lowest positionyshow n in full lines in Fig. 3, and the weight of the lever and'the friction of the parts will then hold the shoe in this position until it is clamped between the heel-band and the toe-v band'. It is to be noted thatthis construction comprising the yieldingly supported last-pin and the depressing means'constitutes a convenient arrangement by which lasts differing in thickness may be posis tioned at the proper altitude with relation to the "heel-band and will beheld in such 'positionwhile the operation jacking the shoe is carried out. I
The carriage 2 at the front of the jack is provided with a guideway extending upwardly and forwardly to receive a post 50.
A carrier 52 is connected by vertical and horizontal pivots to the upper endof the post, the vertical pivot being. advantageously located substantially at the center of curvature of the toe portion of the last when a shoe is in the jack, as at 51 in Figs. 9 and i, and comprises a rearwardly extending arm 5t and depending outwardly inclined arms 56. The toe-rest 4 is pivotallysupported upon the arm 54 and is provided with a depending finger 58 which is engaged by a,
spring 60 secured to thecarrier. The spring 60 holds the rest normally in its most advanced position, but perm-its itto rockirearwardly during the operation of jacking the shoe, as will be described. To the dependband.
end. As herein shown, (Fig. (3) this adjustable connection comprises an eccentric bushing 64 mounted on a pivot stud 66 and received in a circular aperture in theupper end of the arm 68 of the holder.
which it may be turned for'raising or lowering the adjustableend of the toe-band with; The toe-band may f thus be adjusted to position its opposite side portions at different levels to locate its edges relation to the holder.
The eccentric bushing has a finger piece by means of.
flush with the adjacent edges of the forepart. of a twisted last being j acke'd. The post 50 is arranged to be moved longitudinallyjin the carriage 2 for raising and lowering the toe-rest and toe-band,,and to this end the 4 post is provided, as shown, with rack teeth which are'e'ngaged by a pinion 70' carried by a shaft 72 which is mounted in a bearing 73 formed on theside of the carriage 2. -An
operating handle 74 is secured to the shaft 2- for turning the pinionand the handle is provided with a: pawl 7 6 adapted to engage with teeth. on a circular plate 78, secured to.
the carriage or the shaft bearing. The handle may be lockedby the pawl 7 6 for holding thetoe-b-and in its elevated position.
Thesidearms of the toe-band holder 62 are formed to hold the end portions of the'band separated adistance greater than t-he'width of the widest shoe which the jack is in tended to receive. When the toe-band is pressed against the toe of a lastthe front arm of the holder yields and the side arms are drawninwardly to force, the side .por-
tion's ofthe toe-band into clamping contact with the-sides of the shoe so that the whole of thetoe portion of the shoe is firmly ems bracedby t-he toe-band.
' The shoe is applied to the jack with the parts, excepting the yoke 46, in the position shown in Fig. 2, the'last-pin tipping transversely or longitudinally of the jack to adapt itself to any inclination of the pin hole, The yoke 46 is then swung from the dotted line position shown in Fig. 3 to the fullfline position-shown in Fig. 2, and the lever 45 is moved downwardly for forcing the shoe "bac'kwardly and downwardly with relation to the heel-band until the bottom of the shoe is flush with the top of the heelband. The operator thenobserves the shape of the last-, 'and i f it is a twisted last having one side of the forepart higher than the other side, he relatively adjusts the two sides of the toe band vertically by means of the eccentric 64L untilits edges on opposite j sides of the shoe lie in a transverse plane parallel with the bottom of the last and hence when the toe band-is turned into its operative position they will assume a position flush with the last on both sides. The handle 74 is now depressed for inoving the carrier52 with the toe-rest and toe-band in the direction of the length of the post- 50. The first effect produced by this movement is to force the shoe backwardly into the heelband, the last-pin tipping about its pivot in opposition tothe spring plunger 24: as the toe-rest and toe-band becomefirmly seated against the forepart of the shoe. 'As the band is closedby thisnioveinent about, the last below the fuller or wider portion of the shoe and the slope of the toe end face of the -'last it occupies a position with its acting edge, Fig. 2, substantially parallel with the plane of the last bottom and it maintains this relation to the plane of the last bottom while it is finally lifted to the position, Fig. 3, for wiping the upper toward lasted relation to the end and side faces of the last, The carrier 52 and the toe-band then rock about the toe-rest as a fulcrum and as this fulcrum is below the acting edge of the toeband said edge will travel upwardly and backwardly and force the shoe farther rearwardly into the heel-band at the same time that it wipes the upper toward the bottom of the last. In this final movement the resilient arms of the holder 62 for the toeband yield to permit the band to adapt itself to the increasing size of the fuller portion of the last over which it is raised and to the contour of the toe end of the last.
The movable connection between the toel'est and its support permits said rest. to move with the shoe in its backward movement, thus avoiding the friction which might otherwise be produced by the shoe being compelled to slide over the rest. The backward pressure of the shoe against the middle portion of the heelband causes the spring supporting arms 40 to yield, and because of the peculiar formation of these arms with an ini ial twist as shown in Fig. 4, they twist farther as they yield, their inner ends moving toward the last and causing the end portions of the heel-band or counter-embracing-band to clamp the sides of the shoe at about the ends of the counter, whereby the of the last.
end portions of the counter are held firmly against the last. When the heel portion of the shoe has been pressed firmly into the heel-band said band, cooperating with the last-pin, prevents the forepart of the shoe from being raised any higher and then the toe-band begins to ride up the toe portion of the shoe, the carrier 52 tipping about its pivotal connection with the post to permit the band to rise with relation to the rest. The resilient holder for the toe-band is so shaped that the sides of the band areheld separated far enough to receive the widest shoe for which the band is adapted, and therefore the shoe at first is engaged by the middle portion only of the band; but as the band is forced forwardly and upwardly along the toe portion of the shoe, the middle arm of the holder springs forwardly and the side arms are drawn inwardly to permit the band to adapt itself to the shape and size of the toe portion of the shoe. As the band continues to rise it therefore wipesthe whole toe portion of the upper toward the bottom of the last, thus precluding the forming of an fine wrinkles in the upper material, and. by the time the edge ofthe band reaches a position flush with the bottom of the last saidband has firmly clamped the upper material against the toe and sides t is to be noted that the toeband engages first by its middle portion with the upper on the toe portion of the last, as shown in Fig. 2, and that during the first part of the wiping movement of the band the upper is stretched in a direction longi- Thereafter as the band conforms to the shape of the toe portion of the last, the sides, as well as the middle portion, of the band comes into engagemei'it with the upper, and in the final rise of the band the upper on the sides of the last also is wiped toward the bottom of the last. When this movement has been completed the parts occupy the position shown in Fig.
3 with the resilient toe-band holder and the heel-band supporting springs under tension, the toe portion of the upper and also the counter being clamped firmly against the last so that the upper can not wrinkle at t toe or the counter spring away from the last at the frontvends of the counter or bulge outwardly from the heel of the last when the counter flange is broken down during the lasting operation. f The pawl carried by I the lever A will engage the ratchetteeth on the disk 7 8 and hold the parts of the jack in the positions to which they have been moved. The lever 45 may now 'be raised to release the yoke and said lever and-yoke moved into the relative positions shown in dotted lines in Fig. 3, and swung down-' wardly where they will be out of the way, The base 1 and the described parts carried by it are supported on a post 80, Figs. 1 and 7, to which the base is connected by a cupand-saucer joint, the cup-shaped lowerface S2 of the base inclosing a plate 83between which and the saucer-shaped head 8% of thepost clamping action, fixing thebase in angular relation to the post, is effected by a stem 85 and a lever 86. There is a relief spring. between the head of vthe stem and the plate 88. and the lever is fulcrumed on the post and is operated through a rod 87 from the driving mechanism of the machine, Figs. 1 and 7, of which the jack is herein shown to be a part.
The jack post 80 is sustained by a lever 90 with which it has a connection permitting tipping laterally and also forwardly and backwardly between shoe receiving position and the operative position in which the shoe on the jack is presented to theumachine.
The lever 90 isfulcrumed on the base of the machine at 92 and its rear arm contains asocket in which the lowerend of a strut 94; rests at a point near the fulcrum. The strut extends obliquely upwardly and rearwardly to a spring chamber in the machine frame, H
where it abuts against the thimble or cap 95 of; the counterbalancing spring 96, Figs. 7 and 8. The points of engagement of the strut with. the spring cap 95 and with the lever 90 are so related to the fulcrum point 92 of the lever that the strut makes an increasing angle with the direction in which the force I of the'spring is exerted as the j ackis depressed, see full lines Fig. 8, whereby the jack may be stable in its depressed position. As the jackis' raised the springs force is transmitted bythe strut with increasing directness and effectiveness, see dotted lines Fig, 8, so that the spring will hold the jack in itsjupraised position; Thus thestrut 'con stitutes a connection between the balancing spring 96 and the jack for causingthe said spring oractuator to act with lncreasmg force as the jack is moved to its operative position. A'screw 97 provides for adjusting the force of the sbring '96 to balance the weightofthe jack and different shoes.
a The jack "may be intermittently locked against angular movement on the head of its post 80 and unlocked automatically through the .rod 87 which is connected by a lever 100 and rod to a rack bar 102 that meshes with r a pinion 103, Fig. 7,: having connection through a ,lever lO and rod 105"with a swinging cam arm 106, Figs, '1 and 7,, that rocked the vibrating lever 108 the upper end of which bears a roll standing in a groove in av cam blockon the driving shaft of the well known lasting machine shown a in Fig; 1. As the lever 108 swings toward the left'it rides up and; engages the cam face on the swinging arm 106 and through the C pinion 103 draws thefrack bar 102 up,"thereby drawing down uponrod 87 and plate 83 to lock the jack. "During reverse moyement oflever 108" the rack bar is allowed to rise,"
as it does, under the action of a spring plun} ger 110 which sustains and presses upwardly against lever 104 From Fig.7 it may be seen that excess upward movement of'the rack bar 102 after the jack has beenlocked against angular movement upon the head of post 80 will bodily lift the lever 100 and, raisethe front end of lever'90 and the entire jack. The cam face on arm 106 is preferably so formed that such excess movementof the rack bar shall occur and that the jack shall be, so; raised unyieldagainst angular movement on the: post 80.
Preferably also the left hand, PQrti-on of the cam face on arm106. will be so formedqas to maintai Z- jQ k h@ ja ri dlr n. iluraised positi n a short period'before, it low; ered aga n. 1
" Preferably a Horton clutch ofusual cons structionin dic'ate d M11311 Fig. 1 and not a necessary here. to illustrate, but which is i n fully shown insaid prior application, is, in
, terposed between the pinion 103 and the lever'1041 and is arranged to: be; controlled the knee lever 112. hen the clutch, is loose,
lever 104; will be vibrated without turning the. pinion 103 and when the operator closes the clutch through control; of the. knee we th P ni ill s il ts fe t l ti g,
toe portion of the last. ngly and automatically after being clamped the jack intermittently, all as described more fully in said Patent No. 1,081,872..
Having thus described the preferred form of my invention and its mode of operation,
- I claim as new and desire to secure by Letters Patent of the United States 1'. In a lasting machine, a jack having ing said band open for the insertion of the last, and means for moving the band toward the last, said yielding element-s operating,
when the band is brought into engagementwith the last, to close said band around the toe portion of the last. 1
3/In a lasting machine, a jack having a swinging downhold, and means for actuat- 1ng 1t into 13081131011 for hold ng a shoe against rearward and vertical movemer1t, comb ned; with a toe-band having a resillent support and means for raising thetoe-band and its support to cause the band to wipe the upper yieldingly along the toe portion and over the toe end of the last;
4. In a lasting machine, a jack comprising a last pin for supporting'a last, a toeband, and aresilient support to which the ends of the toe-band are secured, said support holding. the toe-band normally open for the convenient insertion of a last, in
' combination with means for moving the toe band to cause it to wipe the upper of the shoe being lasted along the toe portion and around the toe end of the last, said resilient support being thereby'put under tension to cause the toe-band to clamp the sides of the 5,111 a machine of the class described, a
jack comprising means for supporting a last, anda toe-band for embracing the'toe end of the last, in, combination with, a single means for moving one side of the toes,
band in the direction of the height of the last to adjust it independently of the other side and for holding it in adjusted position.
6. A jack, comprising a support for a shoe, a band, adapted to embrace the heel portion of the shoe, and; resilient supporting arms for said band extending downwardly from the front end portions of the band and formed to hold the band normally open, combined with means for forcingthe shoe backwardly into the band wherebv the band a is automatically closed about the last against a the resistance of said resilient end supports 7. A jack, comprising a support for a shoe, a band adapted to embrace the heel portion of the shoe, and supporting arms for said band extending downwardly from the front ends of the band and formed to yield inwardly but to resist backward pressure to a relatively greater extent, combined with means for forcing the shoe backwardly into the band whereby the band is caused to clamp the shoe at the rear end and the sides of the heel.
8. In a last supporting jack, means for clamping the sides of the shoe near the ends of the counter, said means comprising resilient arms, a band connecting said arms and extending around the counter, and means for producing a relative movement of the last and the band to cause the arms to plamp the end portions of the counter to the ast. 9. A last supporting jack comprising a base, a last-pin, a heel-band, a toe-band, yieldin means for supporting said bands upon the base, and means for adjusting said bands toward and from each other, combined with independent means for moving one of said bands in a direction substantially perpendicular to the sole of the last to cause said bands to clamp a shoe around the last at the heel and toe.
10. A jack comprising a last support, a heel-band and a toe-band, means for actuating the toe-band to cause it to force the last into the heel-band, a pivoted support for said heel-band, and means for adjusting the position of said support with relationto its pivot.
11. In a lasting machine, a jack for holding a shoe, said jack comprising a counter embracing band, a rigid base, a last'pin pivotally connected to said base, and yielding means for rocking said last pin about said pivotal connection to hold it normally away from said band to facilitate the application of a last to the jack, combined with means for adjusting the normal distance between the pin and the band.
12. In a lasting machine, a jack provided with a last pin, a last pin support mounted for tipping movement longitudinally of the jack, and a block carrying said last pin and mounted for tipping movement transversely of the jack, as and for the purpose described. v
13. A jack comprising means for supporting a shoe, a yieldingly supported heel-band and a toe-band, in combination with meansfor actuating the toe-band to. force the last into the heel-band and to wipe the upper into lasted-position about the toe end of the last.
14:. Ina lasting machine, a jack for holding a shoe to be lasted, said jack comprising a movably' mounted last pin arranged to tip transversely of the jack and a toe-band provided with means for adjusting one side vertically with relation to the other side, as and for the purpose described.
15. In a lasting machine, a jack for holding a shoe to be lasted, said jack comprising a heel-band, a movably mounted last pin arranged to tip transversely of the jack and of the heel-band, a toe-band, and means for adjusting one side of the toe-band vertically with relation to the other side, for the purpose described.
16. A jack comprising means for supporting a last, a toe-band movable into and out of operative position about the toe of the last, a flexible heel-band, and support for the heel-band, said support being constructed to cause the heel-band to clamp the last laterally when the toe-band is moved into operative position.
17. In a jack for holding a shoe to be lasted, means for sustaining the shoe and means for moving the shoe rearwardly in the jack, said sustaining means comprising a toe post, means for adjusting the post vertically, a toe pad pivotally connected to the post, and means for yieldingly holding the pad rocked forwardly on the postwhen no shoe is in the jack, whereby the pad is enabled to move in the reverse direction for accompanying the shoe in its rearward movement.
18. In a jack, 2. movably sustained last pin, means adapted for clamping the last, and mechanism operatively connected with the clamping means for forcing the last supported on said last pin downwardlyinto' predetermined operative relation to said clamping means.
19. In a jack, means for sustaining a shoe, a toe-band having relatively movable side portions, and means for actuating the band into engagement with the upper on the last and forwardly toward the toe portion of the last, said jack having provision for causing the side portions of theband to come into engagementwith the sides of the shoe during the latter part of said movement of the band over the upper on the toe portion of the last.
' 20. In a jack, a. yieldingly sustained last pin, means for clamping a last which is supported on said last pin, and means operatively connected with the clamping means for forcing the last into predetermined operative relation to the clamping means and maintaining it in such position until the last is clamped.
21. A jack for lasting machines, comprising means for supporting a shoe, a toe-band, a yielding support for holding the end portions of the band normally apart and out of position for engaging the sides of a shoe, and means for actuating said toe-band upwardly and forwardly whereby the upper on the top of the toe portion of the last is a shoe against rearward and vertical move-' ment including a heel-bandand a member relatively movable thereover to engage the shoe bottom, a toe-band arranged to yield, and means whereby said toe-band may be actuated forwardly along'the toe end of a shoe and also-upwardly for wiping the up:
last. 7 23 A jack, comprising means for supportper toward thebottom of the last and cansing the band to clamp, the upper against the ing a shoe, a heel-band, and a toe-band, comb ned w th means for actuating the toeband first upwardly into engagement, with the shoe and then upwardly and rear wardly for forcing the shoe against the heel-band.
24. A jack comprising a last pin for sup rearwardly porting a last, a heel-band, a toe-rest, a toleband, and means for moving the toe-rest and the toe-band upwardly in engagement with the forepart of a shoe vsupported on the last pin and for thereafter moving'the toe-band about the toe-rest as a fulcrum npwardly and rearwardly against the shoe. 25. A jack, comprising a last pin for supporting a last, a heelband, a carrier, a toe rest and a toe-band mounted on said carrier, and means for actuating the'ca'rrier to move the toe-rest and toe-band into engagement with the forepart of a shoe and thereafter to move said carrier and .toeband about the toe-rest as a vfulcrum for forcing the shoe rearwardly into the heelband. V I
26. A jack, comprising means for. supporting a shoe, a longitudinally movable post, a carrier pivotally connected to said post, a toe-rest and a toe-band'mounted on said carrier, andmeans for actuating the post to press the toe-rest and toe-band against the shoe, said pivotal connection ,ward the SllOQbOlJlJOID. and clamping it against the last.
27. In a'jack, a heel-band, means for supporting the heel-band, and a yieldingly sustained last pin adapted to support a shoe,
,- combined with means having connection with the heel-band support and arranged to be actuated for forcing the shoe whatever its size or thickness downwardly into predetermined relation to the heel-band.
28. In a jack, a yieldingly sustained last pin adapted to support ashoe, a heel-band, and means for supporting the heel-band,
combined with a lever having its fulcrum.
moeo
thecombination .with means for sustaining t a last, of lasting means, said two means be- 1ng mounted for relatlve lateral movement between the lastlng means and vthe last carried by said sustaining means about an axiswhich is substantially perpendicular to the plane of, the last bottom and is located llider the last} at a substantialvdistance back of, and near the center of curvature of, the adjacent end of the last, 1
30, In a mechanismof the class described, the combination with means-for sustaining a. last, of a toe-band, said two parts being mounted for relative movement laterally of the toerband and the last carried by the sustaining means about an axis which is sub stantial ly perpendicular to-the plane of the last bottom and is located under the last and at a substantial distance back of the toe end Of the last. 7 i i I v 31. In amechanism of the class described, the combination with means for sustaining a last, of atoe-band, said two parts being mounted for relative movement laterally of the toe band and the last carried by the susmeans by which the levers may be rocked in a direction for forcing the heel-band against the end of the'last whereby the twisted arms are caused toclamp the ends ofthe band: against the sides of the last.
j 33. In a shoe-supporting jack, the combination with means for sustainingalast, of a 1; heel-band," and levers supporting the heel- .5 band and comprising yieldingtwisted arms formed and arranged to force the endsfof I I ithe band against the sides of the last when the last is forced backwardly intothe band; I
l I 34. In a machine'of the class described, a jack,compris'ing means for supporting a last I and an end lasting device formed to embrace the toe end of the last, in combination with I an adjuster operatively connected with said device at oneside of the jack for moving the adjacent side of said deviceto adjust it relatively to the other side of said device in the direction of the height of the last.
j 85. In a machine of the class described, means for supporting a last, an end lasting ,device, means for supporting said device,
the...
and an eccentric operatively connecting said support and the lasting device at one side of the last for adjusting that side of the lasting device in the direction of the height of the last.
36. In a machine of the class described, the combination of end lasting means, shoe supporting means including a toe rest which is restrained from bodily lateral movement, a heel rest between which and the lasting means there is provision for relative curvilinear lateral movement about an aXis lo cated under the last and a substantial distance from the ends of the last and suitable supporting means for said heel rest and lasting means arranged to permit the specified relative movement.
37. In a machine of the class described, the combination with a support in which a last is firmly upheld and a toe lasting band arranged to be clasped about the last end a substantial distance below the plane of the last bottom and with its upper edge substantially parallel to the last bottom, of means to move said band upwardly and means for maintaining such parallelism while bringing the edge of the band into substantially the plane of the last bottom.
88. A machine of the class described, having in combination, a support including toe and heel parts on which a last is firmly upheld and a toe lasting device to engage the work about the last end below the fullest part of last, means connected with one side of the lasting device for efi'ecting adjusting move ments of said device to position its upper edge substantially parallel with the last bottom, and means to move said device relatively to the last support toward the plane of the shoe bottom past said full part of the last, said machine having provision for permitting expansion of said device throughout its length in passing said full part of the last.
89. In a lasting machine, toe embracing lasting means, means for operating the same to wipe the upper toward lasted relation to the shoe bottom, and adjusting means arranged for convenient manipulation in connection with each shoe being lasted to move one side of said lasting means perpendicularly to the plane of the last bottom and relatively to a substantially fixed supporting connection for the other side of said lasting means.
40. In a machine of the class described, a jack for holding a shoe, and mechanism for balancing the jack when in an upraised position, said mechanism including an actuator and a strut arranged to make an increasing angle with the direction of the force 8X- erted by the actuator as the jack is depressed, whereby the jack may be stable in its depressed position.
41. In a machine of the class described, a jack for holding a shoe, a spring for raising the jack into an operative position, and connections between the spring and the jack for causing the spring to act with increasing force on the jack as the jack is moved toward its operative position.
1 .2. In a machine of the class described, a shoe bottom rest, a jack for holding a shoe, and mechanism for forcing the jack upward toward the shoe rest, said mechanism comprising a lever, a spring, and a connecting device between said lever and spring arranged to apply the force of the spring to the lever with increasing directness as the jack is moved toward the shoe rest.
43. In a lasting machine, a jack for holding a shoe, means for sustaining the jack to hold the shoe in position to be operated upon, and means under the control of the operator for lifting the jack.
44. In a lasting machine, a jack, a support therefor, a movable connection between the jack and its support, and means for automatic ally locking the jack upon its support and raising the jack.
45. In a lasting machine, the combination with a jack, a support on which the jack rests for angular movement, and means connecting the jack to its support, of means for automatically actuating said connecting means to lock the jack and unlock it intermittently.
46. In a lasting machine, the combination with a jack and a support therefor, of a movable connection between the jack and its support for the purpose described, and means for automatically locking the jack upon its support and for automatically raising the jack and support and locking them in raised position.
e7. In a lasting machine, the coinbination with a jack and a support therefor, of means for yieldingly sustaining the jack, a movable connection between the jack and its support for the purpose described, and means for automatically locking the ack on its support and for positively raising the jack and rigidly sustaining it in raised position.
In testimony whereof I have signed my name to the specification in the presence of two subscribing witnesses.
, EDWARD .A. STIGGINS.
Witnesses ARTHUR L. RUssnLL, WnLLs L. CHURCH.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G.
US232953A 1902-10-13 1904-11-16 Jack for shoe-machines. Expired - Lifetime US1104016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US232953A US1104016A (en) 1902-10-13 1904-11-16 Jack for shoe-machines.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1902127116A 1902-10-13 1902-10-13
US232953A US1104016A (en) 1902-10-13 1904-11-16 Jack for shoe-machines.

Publications (1)

Publication Number Publication Date
US1104016A true US1104016A (en) 1914-07-21

Family

ID=3172210

Family Applications (1)

Application Number Title Priority Date Filing Date
US232953A Expired - Lifetime US1104016A (en) 1902-10-13 1904-11-16 Jack for shoe-machines.

Country Status (1)

Country Link
US (1) US1104016A (en)

Similar Documents

Publication Publication Date Title
US1104016A (en) Jack for shoe-machines.
US1487915A (en) Upper-shaping machine
US2134148A (en) Lasting machine
US1274590A (en) Lasting-machine.
US1029387A (en) Pulling-over machine.
US1085400A (en) Holddown.
US1128303A (en) Lasting-machine.
US601934A (en) Solidated
US1010394A (en) Lasting-machine.
US1168012A (en) Machine for working and upper on a list.
GB467669A (en) Improvements in or relating to shoe upper conforming machines
US2227459A (en) Machine for use in the manufacture of shoes
US958083A (en) Holddown for lasting-machines.
US974202A (en) Jack for shoe-machines.
US1016480A (en) Pulling-over machine for use in the manufacture of boots and shoes.
US1023854A (en) Machine for use in the manufacture of shoes.
US882018A (en) Lasting-machine.
US1021086A (en) Lasting-machine.
US1141462A (en) Work-support for soles of boots and shoes.
US2173980A (en) Lasting machine
US251430A (en) Lasting-machine
US212460A (en) Improvement in boot and shoe lasting machines
US1413697A (en) Lasting machine
US1957581A (en) Shoe support
US1495161A (en) casgrain