US2115978A - Machine for use in the manufacture of shoes - Google Patents

Machine for use in the manufacture of shoes Download PDF

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US2115978A
US2115978A US21310A US2131035A US2115978A US 2115978 A US2115978 A US 2115978A US 21310 A US21310 A US 21310A US 2131035 A US2131035 A US 2131035A US 2115978 A US2115978 A US 2115978A
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shoe
jack
templet
devices
lever
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US21310A
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Eugene J Ray
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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
    • A43D27/00Machines for trimming as an intermediate operation
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D29/00Machines for making soles from strips of material

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  • the present invention relates to machines which are used in the manufacture of shoes to perform certain operations progressively along the bottom margin of a shoe, and is hereinafter disclosed as embodied in an edge trimming machine of the type in which the shoe and the edge trimming devices are moved relatively to transfer the point of operation about the shoe, and in which mechanism is provided for relatively moving the edge trimming devices and the shoe to maintain the edge trimming devices and the shoe in proper relative positions at the point of operation as said point is transferred about the shoe.
  • the invention is intended primarily as an improvement in automatic sole edge trimming machines, certain features of the invention are capable of use in automatic machines for performing operations other than edge trimming progressively along the bottom margin of a'shoe. Certain features of the invention also are capable of use in shoe machines which are not automatic, and more particularly in nonautomatic edge trimming machines.
  • a principal object of the invention consists in the provision of a templet comprising two rigid arms pivotally supported adjacent the toe portion of the shoe supporting jack and arranged for engagement with side portions of the shoe upper to secure an automatic adjustment of the contour lines of the templet in accordance with the width of shoe being operated upon.
  • Another feature of the invention consists in the provision of a clamping device for securing the free ends of the templet arms against the side portions of the shoe irrespective of the position of the shoe on the jack to insure the correct location of the templet guiding surfaces with relation to the shoe sole.
  • Fig. 1 is a View in front elevation of an automatic edge trimming machine embodying in a preferred form the several features of the invention
  • Fig. 2 is a plan view with a portion of the machine casing broken away to illustrate underlying parts in the base of the machine
  • Fig. 3 is an enlarged view in right side elevation illustrating particularly the shoe supporting jack, the templet, templet guide and edge trimming cutter
  • Fig. 4 is a plan View partly in section taken on the line 4-4 of Fig. 3;
  • Fig. 5 is an enlarged view in front elevation of the shoe supporting jack and the templet with a shoe located in operating position thereon; and Fig. 6 is an end view looking from the left, of a portion of the mechanism shown in Fig. 5, illustrating particularly the templet and clamping means for clamping the two arms of the templet in position against the sides of the shoe.
  • the automatic shoe edge trimming machine herein disclosed as embodying in a preferred form the several features of the invention, comprises a machine head 20 which has supported therein an electric motor provided with a vertically situated armature shaft 22 which carries at its lower end a rotary edge trimming cutter 24.
  • the machine head 29 is bolted to a base 26 which provides a support for the driving and stopping mechanism generally indicated at 23, and serves as a housing for the jack supporting and actuating mechanisms.
  • the shoe supporting jack herein disclosed is substantially that illustrated and described in the application of Garrett P. S. Cross, Serial No. 584,325, filed January 2, 1932.
  • the jack as best shown in Figs.-3 and 5, comprises a vertically arranged spindle 35 having rigidly formed on its upper end a frame 32 which carries the toe support 34.
  • Cooperating with the frame 32 is an arm 36 which is loosely mounted on a pivot stud 38 to swing toward and away from the toe rest, and carries at itsupper end a heel supporting lever 40 and a vertically situated last pin 42 formed integrally with the lever, which are arranged for tilting movements toward and away from the toe rest about a pivot stud 44 on the arm 36.
  • the tilting movements of the heel supporting lever 4!! and heel post 42 are controlled through mechanism which includes a lever arm 52 pivoted at 54 on the arm 36, and having formed on the hub thereof a gear segment which meshes with a corresponding gear segment formed in a downward cxtensionof the heel supporting lever 46.
  • a small tension spring 56 connected at one end to a pinch the arm 36 and at its other end to the lever 52, tendsnor'mally to tilt the heel supporting lever 40 and heel post 42 in a counterclockwise direction as shown in Fig. 5, away from the toe rest.
  • the shoe supported on 'a last is first fitted onto the heel post 42, and is then forced forwardly and downwardly by the operator to bring the 'shoe toe into engagement with the toe support 34 where it is locked in position by the operation of stopping and locking devices which are tripped into operation by the engagement of the shoe toe with a feeler 58, and act respectively to prevent further movement of the arm 36 toward the toe rest, and at the same time to lock the arm 36, and heel supporting lever 40 and post 42, against movement in a reverse direction under the pressure ofjtheir respective'springs, so that the shoe is jack frame 32.
  • the stopping mechanism referred to comprises a rack bar 62 pivotally secured at one end to the arm 36, and at its other end 'provided with rack teeth engaging with a pinion 64 on a rotatable shaft 66 on the There is' also mounted on the shaft 65 a stop ratchet 68 which is arranged to be engaged by a stopping detent H3 when rendered operative by the tripping of the feeler 58 to arrest further movement of the arm 36 toward the toe rest.
  • a locking rack bar i2 pivotally secured at one end to the lever arm 52, and at its other end provided with a rack arranged for engagement with a pinion i4 mounted'on a rotatable shaft 16 on the jack frame 32.
  • a ratchet T! which is arranged for engagement with a locking detent 18 when rendered operative by the engagement of a shoe toe with the feeler 58.
  • the jack illustrated is also provided with toe clamping devices for locating and rigidly clamp- There is also secured ing the toe portion of the shoe in adjusted position laterally of the jack.
  • These devices comprise two toe clamps and 82 which are carried respectively on two carrier arms 84 and 86, and are arranged for engagement with opposite sides ofthe shoe upper adjacent the toe of a shoe supported on the jack.
  • Each of the carrier arms 34 and 3G is shaped to extend downwardly and horizontally, so that they are located parallel and in close proximity to each other under the toe rest 34.
  • the carrier arms 84 and 86 and toe clamps 8-3 and 82 carried respectively thereon, are mounted to move toward and away from each other substantially in planes inclined downwardly toward the center line of the jack, the carrier arm 86 being pivotally secured at 88 to an upwardly extending H-shaped lever 90 pivoted at 92 on the jack frame, and the carrier arm 84 being supported at 94 on alink 96 which is arranged to turn on a fixed pivot 98 'on the jack frame.
  • the carrier arm is provided with a downwardly extending portion I510 journalled to receive a pivot pin I02 in one arm of a bell-crank lever I04 pivoted at I05 on the jacl; frame.
  • the carrier arm 85 ismaintained in proper angular position during relative movements of the carrier arms and toe clamps above described, by means of a boss I08 which projects laterally from the carrier arm 84 and engages with a guideway H0 formed in the horizontal extension of the carrier arm 86.
  • a link II4 Connected to the clamping lever I I2 is a link II4 which is secured at its upper end to an intermediate point on a cross lever II6 which operates when moved downwardly by the actuation of the clamping lever 2 through mechanism connected to one end thereof, to move the toe clamps 80 and 82 into clamping engagement with the shoe toe, and through mechanism connected to the other end thereof, to
  • One end of the cross lever H6 is pivotally connected at H8 to a U-shaped lever I20 which is supported to turn on two studs I22 on the jack frame 32, and is connected through a link 224 to a horizontally extending arm of the bellcrank lever I04 for controlling the operative positions of the toe clamps 80 and 82.
  • the other end of the cross lever H6 is connected through a, link I26 to the tail portion of a pawl I28 which is pivoted on a pawl lever I30 mounted to turn freely on the supporting shaft I4 for the ratchet I6.
  • the operation of the manually operable clamping lever II2 first to move the toe clampsi80 and 82 into clamping position, and thereafter to impart an additional movement to the ratchet I4 to tighten the jack, may be described as fol-' lows:- I
  • the operator now moves the manual clamp lever II 2 sharply upward in a clockwise direction as shown in Fig. 5, causing the link II4 and intermediate portion of the cross lever I I6 connected thereto to be moved downwardly.
  • the cross lever I i6 Since a considerable resistance is provided to the movement of the left hand end of the cross lever II 6 and pawl mechanism above described, by the spring I32, the cross lever I i6 will turn about its pivotal connection with the link I26 to swing the U-shaped lever !28 downwardly, and, acting through the link I24 and bell-crank I04, will move thetoe clamps 80 and 82 into clamping engagement with the side toe portions of the shoe upper, so that the shoe is firmly held in an adjusted position laterally of the jack.
  • the toe clamps are positively locked against movement relatively away from each other by means of a locking device not here shown, which is identical with that illustrated and described in the Cross application above referred to. I
  • the devices for supporting the jack and for imparting thereto the required feeding, turning and tipping movements to feed and to position the shoe with relation to the shoe operating devices to transfer the point of operation about the shoe are substantially those well known in the art, as illustrated, for instance, in the patent to Alfred. R.-:Morrill, No. 1,952,770, dated March 27, 1934, but may be briefly described as follows:
  • the jack supporting mechanism as generally illustratedin Figs. 1, 2, and 5, comprises the jack spindle 30 which is connected at its lower end by means of 'universal connections to turn with a pulley I48 which is supported on the end of a forwardly extending jack supporting arm I42.
  • the supporting lever I42 is pivotally supported for vertical swinging movements on a lever I44 which-is carried on a vertical pivot post on the upper end of a frame I46 which is in turn pivotedfor swinging movements forward and back on twoipivot studs I48 supported on the base 26.
  • the frame I46 is moved forwardly and back to -.provide the necessary roll tipping movements tothejack and shoe supported thereon about the point of. operation, by means of connections comprisinga lever arm I50 which is rigidly secured to a sleeve hub I52 on a vertically extending pivot post I54, and at its free end is connected by a short link to the frame M6.
  • a cam lever I56 which carries a cam roll I58 arranged for engagement with the roll cam I60 on the pattern cam shaft I62 of the machine. Lateral swinging movements are imparted to the lever I44 toimpart the required longitudinal or pitch tipping movements to the jack and shoe supported thereon about the point of operation, thrbugh connections which comprise an arm I64 rigidly secured to a downwardly extending tail of the lever I44, and connected through a link I66 to a lever arm I68 which is rigidly secured to. a sleeve hub II0 on the vertical pivot post I54.
  • a cam lever I72 Secured tothe sleeve hub H0 is a cam lever I72 which carries a cam roll I14 arranged for engagement'with a pitch cam I16 on the pattern cam shaft I62. Rotational or turning movements are imparted to the jack through connec' tions including a cord or cable I78 which passes around the pulley I40 and an idler pulley I85 on the rear end of the arm I 42, and is secured to apulley I82 supported on a vertical pivot E84 on'the base 26.
  • a pinion I86 formed on a sleeve hub of the pulley I82 is arranged to mesh with a-corr'esponding gear segment formed on a lever I88 sleeved ,on the vertical pivot shaft 554.
  • acam lever I90 which carries a cam roll I 92 arranged for engagement with a turn cam I94 on thepattern cam shaft I62.
  • the required feeding movements are imparted to the jack to transfer the point of operation along the margin of the shoe sole, by means of a feed lever I96 which is supported at its rear end on a vertical stud I98 on the base 26,and at its forward end is connected by means of a feed link 280 to the toe portion of the jack.
  • the feed lever is connected through links 202 and 284 to one arm of a cam feed lever 206 which is supported on a pivot stud 268, and has mounted on the other arm thereof a cam roll 2) arranged for engagement with the feed cam 212 on the pattern cam shaft I62.
  • the jack is further supported to maintain the jack and shoe supported thereon in cooperative relationship to the shoe guiding and operating devices, by means of a link 2l4 which is pivotally connected at its rear end to a bracket 216, and at its forward end is connected by means of a universal joint to the upper portion of the jack spindle 30.
  • novel and improved guiding means comprising a templet and templet guide for guiding the shoe with relation to the operating devices as the point of operation is transferred about the shoe, to cause the operating devices to follow a predetermined outline around the margin of a shoe.
  • a templet of novel and improved design is provided associated with the jack and shoe mounted thereon, which is arranged for engagement with a relatively stationary templet guide mounted on the Work head 20 to engage with the templet at a point closely adjacent the point of operation of the shoe operating devices.
  • the templet guide comprises a vertically extending plate 220 which provides a point of contact with the templet directly beneath and somewhat to the rear of the point of operation of the shoe operating devices, and is curved laterally away from each side of a central vertical line to maintain the correct operating relationship between the operating devices and the margin of the shoe sole during the turning movements of the jack.
  • the templet guide or plate 226 is formed on the forward end of a slide support 222, mounted for sliding adjustment in a groove 224 formed in the under side of a support 226 which carries the usual crease guide 228, being adjustably secured thereto by means of a clamping screw 236 which extends through a slot 232 formed in the support 222.
  • the crease guide support 226 is in turn supported for a forward and back adjustment on two downwardly extending lugs 234 and 236 formed on the under side of a bracket 238 secured to the machine head 20.
  • the support 226 is slotted at its rear end 'to receive a clamping bolt 239 screw-threaded into the lug 236, and at its forward end is arranged for sliding engagement in a guideway formed by two downwardly extending arms of the lug 234.
  • a slight vertical adjustment of the crease guide 228 is obtained by means of a pin 24!] which is provided with an eccentric middle portion fitted into a transverse bore in the slide 226, and has its ends engaging with slots 242 formed in the two arms of the lug 234.
  • the templet herein disclosed is located with relation to the shoe in its inverted position on the jack, below the level of the shoe sole and out of contact therewith, to permit a free operation of the work operating devices upon the edge of the shoe sole, and where so desired, upon the bottom surface of the shoe sole.
  • the jack actuating pattern cams of the present machine including the feed, turn, pitch and roll cams above described, are formed with relation to the guiding surface of the templet so that the shoe will be correctly positioned with relation to the edge trimming cutter at all times during the progress of the operation about the shoe to trim the sole edge cleanly and accurately to the desired shape.
  • the templet comprises two fiat plates 246 and 248 which are located respectively along each side of the shoe, and have their outer edges shaped to provide a contour surface corresponding substantially to the outline to be followed by the operating devices during the operation around the shoe. Adjacent the toe portion of the shoe, the plates 246 and 248 are arranged to overlap, and are pivotally supported on the jack by means of a pivot stud 250 mounted in a bracket 252 secured to the frame 32.
  • the templet plates 246 and 246 are arranged at their heel ends for clamping engagement with the shoe upper, so that the templet is located in a predetermined relationship to the shoe independently of any variations which may exist in the location of the last pin socket in the last, and also in a position which will correspond exactly to the width of shoe being operated upon.
  • the templet plates 246 and 248 are supported vertically with relation to the shoe and are clamped to the shoe upper adjacent the heel by'means of two clamping levers 254 and 256 which are pivotally supported at each end of a cross arm 258 formed integrally with the heel supporting lever 40, and are arranged for supporting engagement respectively with the under sides of the templet plates 246 and 248, and for clamping engagement with two clamping plates 26!! and 262 secured respectively to the templet plates 246 and 248.
  • the clamping plates 260 and 262 are each provided with vertically disposed surfaces for engagement with the shoe upper, and at their heel ends with outwardly extending flanges which are arranged, during the opening of the jack, to engage with the clamping levers 254 and 256 and limit the movement of the heel supporting arm 36 and last pin lever 46 away from the toe portion of the jack.
  • the clamping levers 254 and 256 are maintained at all times in operative relationship to the templet arms and clamping plates, so that after a new shoe has been placed in the jack, it is necessary only to move the clamping levers into clamping position to locate the templet in adjusted position with relation to'the shoe.
  • the clamping levers 254 and 256 are connected at their lower ends by means of two toggle links 264 and 266, and are normally moved relatively apart to maintain the clamping' levers in an open retracted position by means of a tension spring 268 connected across the lower ends of the clamping levers.
  • a manually operable lever 210 is provided, pivoted at 212 on the heel arm 36, and provided with a bearing surface 274 arranged, upon an upward movement of the lever, to engage with a curved surface formed on.
  • a detent plunger 28!! is mounted in a bore 282 in the handle of the lever 21s for engagement with asaw tooth ratchet 28 i mounted on the heel supporting arm 38.
  • the two arms 246 and 248 of the templet are thenbrought into clamping engagement with the heel portion of the shoe upper to secure the templet finally in adjusted position with relation. to the shoe, by the operation of the manual clamping lever 210 which operates through the straightening of the toggle links 284 and 266 to move the clamping levers 254 and 256 into tight clamping engagement with the plates 26!! and 262 against the lasted upper.
  • the arrangement of the clamping levers 254 and 256 is such as to permit a free adjustment in the clamping position of thelevers laterally of the jack, so that they will be brought into tight clamping engagement with the shoe, causing each of the templet plates 246 and 248 to be held accurately in. position against the shoe upper, irrespective of any possible variations in the lateral positioning of the shoe heel which might result from inaccurate location of the last pin socket in the last.
  • the templet automaticallyadjusts itself to the width of shoe placed in the jack, so that only one templet is required for all widths of any given size and last of shoe.
  • the templet plates 2% and 2 88 are of rigid construction, the proportions and length of the outline followed by the shoe operating devices along each side of the shoe, are necessarily constant.
  • the outline followed by the operating devices along each side of the shoe starting fromy the shoe toe will follow a progressively narrower path as the shank portion of a shoe is reached.
  • This variation in outline follows substantially the change in shoe outline of progressively narrower sizes, since in progressively narrower sizes, the
  • width of the shoe sole adjacent the toe portion of the shoe shows relatively little change, whereas, increasingly marked diiferences appear in width of the sole as the shank and heel portions of the shoe are reached.
  • the construction and mode of assembly of the templet herein disclosed has the particular advantage that the templet is located entirely from the lasted shoe upper, so that the outline followed by the shoe operating devices about the margin of the shoe, must correspond exactly to the location of the lasted upper to insure a correct proportion of all the parts of the finished shoe. This is of particular importance in connection with the edge trimming operation for which the present templet is particularly intended.
  • the location of the templet at a level considerably below and outside the sole of the inverted shoe on the jack, has a specific advantage in providing adequate space for the operation of devices which act upon the margin of the shoe sole, and also where desired, upon the bottom 01 the shoe sole.
  • This arrangement of the templet makes possible the use of a templet in forming a channel in the shoe sole, so that the templet may be utilized, for instance, in connection with machines which are constructed and arranged for simultaneously performing an edge trimming and channeling operation.
  • a shoe machine having, in combination, devices for operating upon a lasted shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, and a templet arranged for clamping engagement with the shoe upper to locate the guiding surfaces of the templet with relation to the shoe to determine the outline on the shoe followed by the shoe operating devices.
  • a shoe machine having, in combination, devices for operating upon a shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, and a templet mounted on the jack and arranged for engagement with the shoe upper to locate the guiding surfaces of the templet with relation to the shoe to determine the outline on the shoe followed by the shoe operating devices.
  • a shoe machine having, in combination, devices for operating upon a shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a guide with relation to which the jack moves during the operation on a shoe, a templet movably mounted on the jack and cooperating with the guide during the relative movement of the jack and guide to determine the outline on the shoe followed by the operating devices, means for locating the templet on the jack in operative position with relation to the shoe, and means for separately supporting the shoe and templet on the jack to permit the independent removal of the shoe from the jack.
  • a shoe machine having, in combination, devices for operating upon a shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, a templet cooperating with the guide having a guiding surface following substantially the edge contour of the shoe, and means engaging the shoe upper for locating the templet with relation to the shoe to determine the outline on the shoe followed by the shoe operating devices.
  • a shoe machine having, in combination, devices for operating upon a lasted shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, a templet cooperating with the guide, said templet comprising a plurality of separately 10- catable members having guiding surfaces corresponding each to a different portion of the edge contour of the shoe sole, and means engaging the shoe for locating each of said members with relation thereto to determine the outline on the shoe followed by the shoe operating devices.
  • a shoe machine having, in combination, devices for operating upon a lasted shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, a templet cooperating with the guide, said templet comprising a plurality of separately locatable members having guiding surfaces corresponding each to a different portion of the edge contour of the shoe sole, and means engaging the shoe upper for locating said members with relation to the shoe to determine the outline on the shoe followed by the shoe operating devices.
  • a shoe machine having, in combination with devices for operating upon a lasted shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, a temp-let having guiding surfaces cooperating therewith, said templet comprising separate members having guiding surfaces extending respectively along each side of the shoe, and clamping devices on the jack for holding each of said members in clamping engagement with the shoe upper to determine the outline on the shoe followed by the operating devices.
  • a shoe machine having in combination, devices for operating upon a lasted shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, a templet comprising separate members having guiding surfaces extending respectively along opposite sides of the shoe sole, a pivotal mounting for said members on the jack adjacent the toe portionof a shoe located thereon, and clamping devices supported on the jack for engaging each of said members with the shoe upper to determine the outline on the shoe followed by the shoe operating devices.
  • a shoe machine having, in combination with devices for operating upon a shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guid a templet cooperating therewith comprising two members having guide engaging surfaces overlapping to provide a continuous guiding surface around the toe and side portions of the shoe, a common pivotal mounting for said members on the jack adjacent the toe portion of a shoe located thereon, and means mounted on the jack for locating the heelward extending portions of said members with relation to the shoe upper to determine the outline on the shoe followed by the shoe operating devices.
  • a shoe machine having, in combination with devices for operating upon a shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a shoe supported on the jack, a templet guide, a templet cooperating therewith comprising two members having guide engaging surfaces overlapping to provide a continuous guiding surface around the toe and side portions of the shoe,-
  • a shoe machine having, in combination, devices for operating upon a lasted shoe, a shoe supporting jack, jack actuating devices comprising means for imparting feeding, turning and tipping movements to the jack to position the shoe with relation to the shoe operating devices and transfer the point of operation along the bottom margin of a lasted shoe supported on the jack, a templet guide, and a templet mounted on the Jack surrounding the shoe and out of engagement with the shoe sole and having a guiding surface disposed for engagement vn'th said guide laterally of the shoe sole and cooperating with said jack actuating devices to determine the outline on the shoe followed by the shoe operating devices.
  • a shoe machine having, in combination, devices for operating upon a shoe, a shoe supporting jack, jack actuating devices comprising means for imparting feeding, turning and tipping movements to the jack to position the shoe with relation to the shoe operating devices and transfer the point of operation along the bottom margin of a lasted shoe supported on the jack, a templet guide, and a templet carried by the jack surrounding the shoe and having a guiding surface disposed for engagement with said guide laterally of the shoe sole and in a plane substantially below the surface of the shoe sole, and cooperating with said jack actuating devices to determine the outline on the shoe followed by the shoe operating devices.
  • a shoe machine having, in combination, devices for operating upon the sole margin of a shoe, a shoe supporting jack comprising a toe support and a heel support associated therewith, a templet comprising separate rigidly formed members mounted on said toe support and having guiding surfaces extending respectively along opposite sides of the shoe sole, means engaging the shoe upper for locating the shoe toe on said support, and clamping means engaging the shoe upper for supporting the heelward extending portions of said templet members to locate the guiding surfaces of the templet with relation to the sole margin of the shoe.
  • a shoe machine having, in combination, devices for operating upon a lasted shoe, a shoe supporting jack comprising a toe support and a heel support associated therewith, jack actuating devices comprising means for imparting feeding, turning and tipping movements to the jack to transfer the point of operation of the shoe operating devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, a templet comprising two members having guide engaging surfaces supported on said toe support and extending respectively along each side of the shoe, means engaging the shoe upper for locating the toe portion of the shoe longitudinally and laterally on the toe support with relation to said templet members, and clamping devices mounted on said heel support for engagement with the shoe upper to locate the heelward extending portions of said templet members to determine the outline on the shoe followed by the shoe operating devices during the operation on the shoe.
  • a templet guiding device adapted for use with a shoe machine having shoe operating devices for performing an operation progressively around the sole margin of a shoe supported on a last, and a templet guide mounted on said machine, said templet guiding device comprising a templet having guiding surfaces for engagement with the templet guide to determine the outline on the shoe followed by the shoe operating devices, and clamping devices engaging the shoe upper to locate said templet in adjusted position on the lasted shoe.
  • a templet guiding device adapted for use with a shoe edge trimming machine having edge trimming devices for trimming the edge of the shoe sole progressively around the sole margin of a shoe supported on a last, and a templet guide mounted on said machine, said templet guiding device comprising a templet having guiding surfaces for engagement with the templet guide to determine the outline on the shoe followed by the edge trimming devices, and clamp-- ing devices engaging the shoe upper to locate the templet in adjusted position on the lasted shoe.
  • a templet guiding device adapted for use with a shoe machine having shoe operating devices for performing an operation progressively around the sole margin of a shoe supported on a last, and a templet guide mounted on the machine, said templet guiding device comprising a plurality of separately locatable templet members having guiding surfaces for engagement successively with the templet guide to determine the outline on the shoe followed by the shoe operating devices, and clamping devices engaging the shoe upper for locating each of said templet. members in adjusted position on the lasted shoe.
  • a shoe machine having, in combination, devices for operating upon a shoe and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a guide, a templet mounted on the jack and cooperating with the guide to determine the outline on the shoe followed by the operating devices, said templet comprising a plurality of separately movable members having guiding surfaces corresponding each to a diiferent portion of an edge contour of the shoe, and means for locating said members on the jack in operative position with relation to the shoe.

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

Description

May 3, 1938.
E. J. RAY
MACHINE FOR USE IN THE MANUFACTURE OF SHOES rrrrrrrrrrr 1| H -MJH lv WW 6 7 M May 3, 1938. v J, Y 2,115,978
- MACHINE FOR USE IN THE MANUFACTURE OF SHOES Filed May 14, 1935 6 Sheets-Sheet 2 May 3, 1938. E J. RAY 2,115,978 MACHINE FOR USE IN THE MANUFACTURE OF SHES Filed Ma y 14, 1935 I 6 Sheets-Shet 3 4 v ggfi i May 3, 1938. V E. J. RAY 5 3 MACHINE FOR USE IN THE MANUFACTURE OF SHOES.
Filed May 14, 1935 e Sheets-Sheet 4 WW5 v $24 W May 3, 1938. J RAY 2,115,978
MACHINE FOR USE IN THE MANUFACTURE OF SHOE Filed May 14, 1935 6 Sheets-Sheet 5 May 3, 1938. J. RAY
MACHINE FOR USE IN THE MANUFACTURE SHOES Filed ma 14, 1955 6 Sheets-Sheet 6 Wzliizwa Patented May 3, 1938 UNITED STATES Z,li5,97
PATENT OFFICE MACHINE FOR USE. IN THE MANUFACTURE OF SHOES Application May 14, 1935, Serial No. 21,310
18 Claims.
The present invention relates to machines which are used in the manufacture of shoes to perform certain operations progressively along the bottom margin of a shoe, and is hereinafter disclosed as embodied in an edge trimming machine of the type in which the shoe and the edge trimming devices are moved relatively to transfer the point of operation about the shoe, and in which mechanism is provided for relatively moving the edge trimming devices and the shoe to maintain the edge trimming devices and the shoe in proper relative positions at the point of operation as said point is transferred about the shoe. While the invention is intended primarily as an improvement in automatic sole edge trimming machines, certain features of the invention are capable of use in automatic machines for performing operations other than edge trimming progressively along the bottom margin of a'shoe. Certain features of the invention also are capable of use in shoe machines which are not automatic, and more particularly in nonautomatic edge trimming machines.
It is a principal object of the present invention to provide a templet constructed and supported with relation to the shoe in a novel and improved manner for causing the shoe operating devices to follow a predetermined contour line during the transfer of the operation about the shoe, and to enable this operation to be performed in an accurate and reliable manner to secure satisfactory and uniform results without the use of skilled labor, and notwithstanding irregularities in the shoe contoursor variations and imperfections in the shape or arrangement of the various parts of the shoe produced during preceding shoemaking operations.
It is a further object of the invention to provide in an automatic machine of the general type which includes shoe operating devices and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a shoe supported on the jack, a novel and improved templet associated with the jack for determining the path followed by the point of operation about the shoe constructed and arranged to permit the operation of such devices both on the sole edge and upon the adjacent bottom portion of the shoe sole free from interference with the templet or its supporting structure.
It is a further object of the invention to provide a novel and improved assembly of a shoe supporting jack and templet or other guiding means for determining the path followed by the point of operation about the shoe, which is well adapted to enable the operator by the simple operation of locating and locking the shoe on the jack at the same time to locate the templet surely and accurately with relation to the shoe, so that the point of operation during the subse- 5 quent operation of the machine will follow a predetermined outline about the shoe.
It is a further object of the invention to provide, in a machine of the general type which comprises shoe operating devices and a shoe sup- 10 porting jack, a templet having guiding surfaces determined in accordance with the size and style of shoe being operated upon for causing the shoe operating devices during the transfer of the operation about the shoe sole to follow a smooth and 15 regular outline irrespective of the irregularities in the contour of the shoe, in which the guiding surfaces of the templet are readily adjustable to cause the path followed by the operating devices to conform generally to different widths of shoes. 20
With these and other objects in View as may hereinafter appear, a principal object of the invention consists in the provision of a templet comprising two rigid arms pivotally supported adjacent the toe portion of the shoe supporting jack and arranged for engagement with side portions of the shoe upper to secure an automatic adjustment of the contour lines of the templet in accordance with the width of shoe being operated upon. 30
Another feature of the invention consists in the provision of a clamping device for securing the free ends of the templet arms against the side portions of the shoe irrespective of the position of the shoe on the jack to insure the correct location of the templet guiding surfaces with relation to the shoe sole.
The several features of the present invention consist also in the devices, combinations and arrangement of parts hereinafter described and claimed, which together with the advantages to be obtained thereby will be readily understood by one skilled in the art from the following description taken in connection with the accompanying drawings, in which Fig. 1 is a View in front elevation of an automatic edge trimming machine embodying in a preferred form the several features of the invention; Fig. 2 is a plan view with a portion of the machine casing broken away to illustrate underlying parts in the base of the machine; Fig. 3 is an enlarged view in right side elevation illustrating particularly the shoe supporting jack, the templet, templet guide and edge trimming cutter; Fig. 4 is a plan View partly in section taken on the line 4-4 of Fig. 3;
Fig. 5 is an enlarged view in front elevation of the shoe supporting jack and the templet with a shoe located in operating position thereon; and Fig. 6 is an end view looking from the left, of a portion of the mechanism shown in Fig. 5, illustrating particularly the templet and clamping means for clamping the two arms of the templet in position against the sides of the shoe.
The automatic shoe edge trimming machine herein disclosed as embodying in a preferred form the several features of the invention, comprises a machine head 20 which has supported therein an electric motor provided with a vertically situated armature shaft 22 which carries at its lower end a rotary edge trimming cutter 24. The machine head 29 is bolted to a base 26 which provides a support for the driving and stopping mechanism generally indicated at 23, and serves as a housing for the jack supporting and actuating mechanisms.
The shoe supporting jack herein disclosed is substantially that illustrated and described in the application of Garrett P. S. Cross, Serial No. 584,325, filed January 2, 1932. The jack, as best shown in Figs.-3 and 5, comprises a vertically arranged spindle 35 having rigidly formed on its upper end a frame 32 which carries the toe support 34. Cooperating with the frame 32 is an arm 36 which is loosely mounted on a pivot stud 38 to swing toward and away from the toe rest, and carries at itsupper end a heel supporting lever 40 and a vertically situated last pin 42 formed integrally with the lever, which are arranged for tilting movements toward and away from the toe rest about a pivot stud 44 on the arm 36. A spring 45 coiled about a pivotjstud 48 on the frame 32 connected at one end to a pin 50 on the swinging arm 36, and at its other end anchored in a central bore in the spindle 30, tends normally to maintain the arm 35 in a relatively retracted position away from the toe rest 34. The tilting movements of the heel supporting lever 4!! and heel post 42 are controlled through mechanism which includes a lever arm 52 pivoted at 54 on the arm 36, and having formed on the hub thereof a gear segment which meshes with a corresponding gear segment formed in a downward cxtensionof the heel supporting lever 46. A small tension spring 56 connected at one end to a pinch the arm 36 and at its other end to the lever 52, tendsnor'mally to tilt the heel supporting lever 40 and heel post 42 in a counterclockwise direction as shown in Fig. 5, away from the toe rest.
In order to locate a shoe on the jack, the shoe supported on 'a last is first fitted onto the heel post 42, and is then forced forwardly and downwardly by the operator to bring the 'shoe toe into engagement with the toe support 34 where it is locked in position by the operation of stopping and locking devices which are tripped into operation by the engagement of the shoe toe with a feeler 58, and act respectively to prevent further movement of the arm 36 toward the toe rest, and at the same time to lock the arm 36, and heel supporting lever 40 and post 42, against movement in a reverse direction under the pressure ofjtheir respective'springs, so that the shoe is jack frame 32.
locked in position on the jack. The stopping mechanism referred to, comprises a rack bar 62 pivotally secured at one end to the arm 36, and at its other end 'provided with rack teeth engaging with a pinion 64 on a rotatable shaft 66 on the There is' also mounted on the shaft 65 a stop ratchet 68 which is arranged to be engaged by a stopping detent H3 when rendered operative by the tripping of the feeler 58 to arrest further movement of the arm 36 toward the toe rest. The mechanism for locking the parts of the jack in the position illustrated in Fig. 5, comprises a locking rack bar i2 pivotally secured at one end to the lever arm 52, and at its other end provided with a rack arranged for engagement with a pinion i4 mounted'on a rotatable shaft 16 on the jack frame 32. to the shaft 76, a ratchet T! which is arranged for engagement with a locking detent 18 when rendered operative by the engagement of a shoe toe with the feeler 58. Inasmuch as the construction and mode of operation of the stopping and locking devices thus far described, together with the mechanisms for controlling the operation of the stopping and locking detents if) and "[8 respectively from the feeler member 58, are fully illustrated and described in the Cross application above referred to, and form specifically no part of the present invention, a further description of these mechanisms is believed unnecessary.
The jack illustrated is also provided with toe clamping devices for locating and rigidly clamp- There is also secured ing the toe portion of the shoe in adjusted position laterally of the jack. These devices, as illustrated in Figs. 3 and 5, and as more fully described and illustrated in the Cross application above referred to, comprise two toe clamps and 82 which are carried respectively on two carrier arms 84 and 86, and are arranged for engagement with opposite sides ofthe shoe upper adjacent the toe of a shoe supported on the jack. Each of the carrier arms 34 and 3G is shaped to extend downwardly and horizontally, so that they are located parallel and in close proximity to each other under the toe rest 34. The carrier arms 84 and 86 and toe clamps 8-3 and 82 carried respectively thereon, are mounted to move toward and away from each other substantially in planes inclined downwardly toward the center line of the jack, the carrier arm 86 being pivotally secured at 88 to an upwardly extending H-shaped lever 90 pivoted at 92 on the jack frame, and the carrier arm 84 being supported at 94 on alink 96 which is arranged to turn on a fixed pivot 98 'on the jack frame. In order to control the position of the carrier arms 84 and 86, and also to provide an additional support therefor, the carrier arm is provided with a downwardly extending portion I510 journalled to receive a pivot pin I02 in one arm of a bell-crank lever I04 pivoted at I05 on the jacl; frame. The
two ends of the pivot pin Hi2 are flattened to engage with slots formed respectively in the downward extending arms of the H-shaped carrier lever 96, so that a movement of the bell-crank I04 about its pivot, acts to move the carrier arm 84 and 'toeclamp'fiil inwardly or outwardly as the case may be, and acts simultaneously by rocking the carrier lever 9i) about its pivot 92 to impart corresponding inward or outward movements to the carrier arm 86 and toe clamp 82. The carrier arm 85 ismaintained in proper angular position during relative movements of the carrier arms and toe clamps above described, by means of a boss I08 which projects laterally from the carrier arm 84 and engages with a guideway H0 formed in the horizontal extension of the carrier arm 86.
After a shoe has been located upon and locked in position on the jack as above set forth, the toe clamps'are moved into clamping engagement with the toe portion of the shoe upper, to locate the toe laterally of the jack, andan additional rotative movement is imparted to the locking ratchet I4 and associated parts to tighten the jack by forcing the shoe toe downwardly into firm engaging contact with the toe rest 34 by the operator, through the manipulation of a manually operable clamping lever II2 which is loosely mounted to turn on the pivot stud 48 on the jack frame 32. Connected to the clamping lever I I2 is a link II4 which is secured at its upper end to an intermediate point on a cross lever II6 which operates when moved downwardly by the actuation of the clamping lever 2 through mechanism connected to one end thereof, to move the toe clamps 80 and 82 into clamping engagement with the shoe toe, and through mechanism connected to the other end thereof, to
impart an additional movement to the locking ratchet I4 and associated parts, to tighten the jack. One end of the cross lever H6 is pivotally connected at H8 to a U-shaped lever I20 which is supported to turn on two studs I22 on the jack frame 32, and is connected through a link 224 to a horizontally extending arm of the bellcrank lever I04 for controlling the operative positions of the toe clamps 80 and 82. The other end of the cross lever H6 is connected through a, link I26 to the tail portion of a pawl I28 which is pivoted on a pawl lever I30 mounted to turn freely on the supporting shaft I4 for the ratchet I6. A tension spring I32 connected between an extension on the pawl lever I30 and a pin I34 on the jack frame 32, tends normally to maintain the lever I30 and pawl I28 in a fully raised or retracted position. A tension spring I36 se-' cured at one end tothe manual clamping lever H2 at the point of connection with the link II 4, and at its other end on a pin on the jack frame; tends to swing the lever in a counterclockwise direction as shown in Fig. 5, to a normally retracted rest position. The operation of the manually operable clamping lever II2 first to move the toe clampsi80 and 82 into clamping position, and thereafter to impart an additional movement to the ratchet I4 to tighten the jack, may be described as fol-' lows:- I Assuming that a lasted shoe has been'placed on the last pin 42, and the shoe then moved forward to engage the shoe toe with the toe rest 34 and feeler 58 so that the stopping and locking detents I and I8 are rendered operative to lock the shoe in the jack, the operator now moves the manual clamp lever II 2 sharply upward in a clockwise direction as shown in Fig. 5, causing the link II4 and intermediate portion of the cross lever I I6 connected thereto to be moved downwardly. Since a considerable resistance is provided to the movement of the left hand end of the cross lever II 6 and pawl mechanism above described, by the spring I32, the cross lever I i6 will turn about its pivotal connection with the link I26 to swing the U-shaped lever !28 downwardly, and, acting through the link I24 and bell-crank I04, will move thetoe clamps 80 and 82 into clamping engagement with the side toe portions of the shoe upper, so that the shoe is firmly held in an adjusted position laterally of the jack. The toe clamps are positively locked against movement relatively away from each other by means of a locking device not here shown, which is identical with that illustrated and described in the Cross application above referred to. I
The continued turning of the manual clamping:lever:II2 now causes the cross lever II6 to turn about its pivotal connection with the lever I20 as a fulcrum, to move the pawl I28 and pawl lever I30 against the pressure of the spring I32 into engagement with the locking ratchet 11, 80 that an additional movement is imparted thereto to draw, the locking rack I2 toward the toe' portion of the jack, to secure the desired tightening effect.
The devices for supporting the jack and for imparting thereto the required feeding, turning and tipping movements to feed and to position the shoe with relation to the shoe operating devices to transfer the point of operation about the shoe, ;are substantially those well known in the art, as illustrated, for instance, in the patent to Alfred. R.-:Morrill, No. 1,952,770, dated March 27, 1934, but may be briefly described as follows: The jack supporting mechanism as generally illustratedin Figs. 1, 2, and 5, comprises the jack spindle 30 which is connected at its lower end by means of 'universal connections to turn with a pulley I48 which is supported on the end of a forwardly extending jack supporting arm I42. The supporting lever I42 is pivotally supported for vertical swinging movements on a lever I44 which-is carried on a vertical pivot post on the upper end of a frame I46 which is in turn pivotedfor swinging movements forward and back on twoipivot studs I48 supported on the base 26. The frame I46 is moved forwardly and back to -.provide the necessary roll tipping movements tothejack and shoe supported thereon about the point of. operation, by means of connections comprisinga lever arm I50 which is rigidly secured to a sleeve hub I52 on a vertically extending pivot post I54, and at its free end is connected by a short link to the frame M6. There is also rigidly secured to the sleeve hub I52, a cam lever I56 which carries a cam roll I58 arranged for engagement with the roll cam I60 on the pattern cam shaft I62 of the machine. Lateral swinging movements are imparted to the lever I44 toimpart the required longitudinal or pitch tipping movements to the jack and shoe supported thereon about the point of operation, thrbugh connections which comprise an arm I64 rigidly secured to a downwardly extending tail of the lever I44, and connected through a link I66 to a lever arm I68 which is rigidly secured to. a sleeve hub II0 on the vertical pivot post I54. Secured tothe sleeve hub H0 is a cam lever I72 which carries a cam roll I14 arranged for engagement'with a pitch cam I16 on the pattern cam shaft I62. Rotational or turning movements are imparted to the jack through connec' tions including a cord or cable I78 which passes around the pulley I40 and an idler pulley I85 on the rear end of the arm I 42, and is secured to apulley I82 supported on a vertical pivot E84 on'the base 26. A pinion I86 formed on a sleeve hub of the pulley I82 is arranged to mesh with a-corr'esponding gear segment formed on a lever I88 sleeved ,on the vertical pivot shaft 554. There is also "secured to the sleeve hub of the lever I88, acam lever I90 which carries a cam roll I 92 arranged for engagement with a turn cam I94 on thepattern cam shaft I62. The required feeding movements are imparted to the jack to transfer the point of operation along the margin of the shoe sole, by means of a feed lever I96 which is supported at its rear end on a vertical stud I98 on the base 26,and at its forward end is connected by means of a feed link 280 to the toe portion of the jack. The feed lever is connected through links 202 and 284 to one arm of a cam feed lever 206 which is supported on a pivot stud 268, and has mounted on the other arm thereof a cam roll 2) arranged for engagement with the feed cam 212 on the pattern cam shaft I62. The jack is further supported to maintain the jack and shoe supported thereon in cooperative relationship to the shoe guiding and operating devices, by means of a link 2l4 which is pivotally connected at its rear end to a bracket 216, and at its forward end is connected by means of a universal joint to the upper portion of the jack spindle 30. Inasmuch as the details of the construction and mode of operation of these mechanisms to impart the required feeding, turning and tipping movements to the jack, are well known in the art, no further description thereof is believed necessary.
In accordance with the present invention, novel and improved guiding means are provided comprising a templet and templet guide for guiding the shoe with relation to the operating devices as the point of operation is transferred about the shoe, to cause the operating devices to follow a predetermined outline around the margin of a shoe. To this end, a templet of novel and improved design is provided associated with the jack and shoe mounted thereon, which is arranged for engagement with a relatively stationary templet guide mounted on the Work head 20 to engage with the templet at a point closely adjacent the point of operation of the shoe operating devices. As best shown in Fig. 30f the drawings, the templet guide comprises a vertically extending plate 220 which provides a point of contact with the templet directly beneath and somewhat to the rear of the point of operation of the shoe operating devices, and is curved laterally away from each side of a central vertical line to maintain the correct operating relationship between the operating devices and the margin of the shoe sole during the turning movements of the jack. The templet guide or plate 226 is formed on the forward end of a slide support 222, mounted for sliding adjustment in a groove 224 formed in the under side of a support 226 which carries the usual crease guide 228, being adjustably secured thereto by means of a clamping screw 236 which extends through a slot 232 formed in the support 222. The crease guide support 226 is in turn supported for a forward and back adjustment on two downwardly extending lugs 234 and 236 formed on the under side of a bracket 238 secured to the machine head 20. The support 226 is slotted at its rear end 'to receive a clamping bolt 239 screw-threaded into the lug 236, and at its forward end is arranged for sliding engagement in a guideway formed by two downwardly extending arms of the lug 234. A slight vertical adjustment of the crease guide 228 is obtained by means of a pin 24!] which is provided with an eccentric middle portion fitted into a transverse bore in the slide 226, and has its ends engaging with slots 242 formed in the two arms of the lug 234.
In accordance with a principal feature of the present invention, the templet herein disclosed is located with relation to the shoe in its inverted position on the jack, below the level of the shoe sole and out of contact therewith, to permit a free operation of the work operating devices upon the edge of the shoe sole, and where so desired, upon the bottom surface of the shoe sole.
The jack actuating pattern cams of the present machine including the feed, turn, pitch and roll cams above described, are formed with relation to the guiding surface of the templet so that the shoe will be correctly positioned with relation to the edge trimming cutter at all times during the progress of the operation about the shoe to trim the sole edge cleanly and accurately to the desired shape.
As best shown in Figs. 3, 4, 5, and 6 of the drawings, the templet comprises two fiat plates 246 and 248 which are located respectively along each side of the shoe, and have their outer edges shaped to provide a contour surface corresponding substantially to the outline to be followed by the operating devices during the operation around the shoe. Adjacent the toe portion of the shoe, the plates 246 and 248 are arranged to overlap, and are pivotally supported on the jack by means of a pivot stud 250 mounted in a bracket 252 secured to the frame 32.
In accordance with one feature of the present invention, the templet plates 246 and 246 are arranged at their heel ends for clamping engagement with the shoe upper, so that the templet is located in a predetermined relationship to the shoe independently of any variations which may exist in the location of the last pin socket in the last, and also in a position which will correspond exactly to the width of shoe being operated upon. The templet plates 246 and 248 are supported vertically with relation to the shoe and are clamped to the shoe upper adjacent the heel by'means of two clamping levers 254 and 256 which are pivotally supported at each end of a cross arm 258 formed integrally with the heel supporting lever 40, and are arranged for supporting engagement respectively with the under sides of the templet plates 246 and 248, and for clamping engagement with two clamping plates 26!! and 262 secured respectively to the templet plates 246 and 248. The clamping plates 260 and 262 are each provided with vertically disposed surfaces for engagement with the shoe upper, and at their heel ends with outwardly extending flanges which are arranged, during the opening of the jack, to engage with the clamping levers 254 and 256 and limit the movement of the heel supporting arm 36 and last pin lever 46 away from the toe portion of the jack. With this construction and arrangement of the parts, the clamping levers 254 and 256 are maintained at all times in operative relationship to the templet arms and clamping plates, so that after a new shoe has been placed in the jack, it is necessary only to move the clamping levers into clamping position to locate the templet in adjusted position with relation to'the shoe. The clamping levers 254 and 256 are connected at their lower ends by means of two toggle links 264 and 266, and are normally moved relatively apart to maintain the clamping' levers in an open retracted position by means of a tension spring 268 connected across the lower ends of the clamping levers. In order to bring the clamping levers 254 and 256 into clamping engagement with the clamping plates 260 and 262 to clamp the templet plates 24-6 and 248 in adjusted position, a manually operable lever 210 is provided, pivoted at 212 on the heel arm 36, and provided with a bearing surface 274 arranged, upon an upward movement of the lever, to engage with a curved surface formed on. the toggle link 266 immediately beneath the connecting pivot 218 for the two links, to straighten the toggle against the pressure of the spring 268, so that the clamping levers are moved positively into clamping position. In order to hold the parts .in clamping position, a detent plunger 28!! is mounted in a bore 282 in the handle of the lever 21s for engagement with asaw tooth ratchet 28 i mounted on the heel supporting arm 38. A compression spring 286 seated in the bore 282 and engaging the rear end of the plunger 28s, acts normally to maintain the detent plunger in looking engagement with, the ratchet 28 i. A pin 288 secured to the plunger 28:] and projecting outwardly through a slot 290 in the lever 210, provides .a convenient means for withdrawing the detent 280 to permit the release of the lever 2m and clamping levers 25d and 256 when it is desired to remove the shoe from the jack.
With the construction and arrangement of the templet and jack associated therewith herein illustrated and described, only a simple operation is required to enable the operator quickly and accurately to locate and clamp a shoe on the jack and to secure the templet in adjusted position with relation to the shoe. The locating of the shoe longitudinally on the jack as determined by the engagement of the shoe toe with the feeler 58, serves also to locate the templet, secured to the toe supporting frame 32, longitudinally of the shoe sole. The subsequent operation of moving the toe clamps into clamping engagement with the toe portion of the lasted upper in tightening the jack, serves to locate the toe portion of the shoe laterally of the jack, and also laterally with relation to the templet mounted on. the jack. The two arms 246 and 248 of the templet are thenbrought into clamping engagement with the heel portion of the shoe upper to secure the templet finally in adjusted position with relation. to the shoe, by the operation of the manual clamping lever 210 which operates through the straightening of the toggle links 284 and 266 to move the clamping levers 254 and 256 into tight clamping engagement with the plates 26!! and 262 against the lasted upper. It may be noted at this point that the arrangement of the clamping levers 254 and 256 is such as to permit a free adjustment in the clamping position of thelevers laterally of the jack, so that they will be brought into tight clamping engagement with the shoe, causing each of the templet plates 246 and 248 to be held accurately in. position against the shoe upper, irrespective of any possible variations in the lateral positioning of the shoe heel which might result from inaccurate location of the last pin socket in the last.
With the construction and mode of mounting the templet with relation to the shoe herein disclosed, the templet automaticallyadjusts itself to the width of shoe placed in the jack, so that only one templet is required for all widths of any given size and last of shoe. Inasmuch as the templet plates 2% and 2 88 are of rigid construction, the proportions and length of the outline followed by the shoe operating devices along each side of the shoe, are necessarily constant. As the heel portions of the templet plates 246 and 248 are brought closer together for operation upon progressively narrower widths of shoe, the outline followed by the operating devices along each side of the shoe starting fromy the shoe toe, will follow a progressively narrower path as the shank portion of a shoe is reached. This variation in outline follows substantially the change in shoe outline of progressively narrower sizes, since in progressively narrower sizes, the
width of the shoe sole adjacent the toe portion of the shoe shows relatively little change, whereas, increasingly marked diiferences appear in width of the sole as the shank and heel portions of the shoe are reached.
The construction and mode of assembly of the templet herein disclosed, has the particular advantage that the templet is located entirely from the lasted shoe upper, so that the outline followed by the shoe operating devices about the margin of the shoe, must correspond exactly to the location of the lasted upper to insure a correct proportion of all the parts of the finished shoe. This is of particular importance in connection with the edge trimming operation for which the present templet is particularly intended.
The location of the templet at a level considerably below and outside the sole of the inverted shoe on the jack, has a specific advantage in providing adequate space for the operation of devices which act upon the margin of the shoe sole, and also where desired, upon the bottom 01 the shoe sole. This arrangement of the templet makes possible the use of a templet in forming a channel in the shoe sole, so that the templet may be utilized, for instance, in connection with machines which are constructed and arranged for simultaneously performing an edge trimming and channeling operation.
The several features of the present machine and the advantages tobe obtained thereby having been pointed out, and a specific. embodiment of the invention having been described, what is claimed is:- 1. A shoe machine having, in combination, devices for operating upon a lasted shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, and a templet arranged for clamping engagement with the shoe upper to locate the guiding surfaces of the templet with relation to the shoe to determine the outline on the shoe followed by the shoe operating devices.
2. A shoe machine having, in combination, devices for operating upon a shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, and a templet mounted on the jack and arranged for engagement with the shoe upper to locate the guiding surfaces of the templet with relation to the shoe to determine the outline on the shoe followed by the shoe operating devices.
3. A shoe machine having, in combination, devices for operating upon a shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a guide with relation to which the jack moves during the operation on a shoe, a templet movably mounted on the jack and cooperating with the guide during the relative movement of the jack and guide to determine the outline on the shoe followed by the operating devices, means for locating the templet on the jack in operative position with relation to the shoe, and means for separately supporting the shoe and templet on the jack to permit the independent removal of the shoe from the jack.
4. A shoe machine having, in combination, devices for operating upon a shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, a templet cooperating with the guide having a guiding surface following substantially the edge contour of the shoe, and means engaging the shoe upper for locating the templet with relation to the shoe to determine the outline on the shoe followed by the shoe operating devices.
5. A shoe machine having, in combination, devices for operating upon a lasted shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, a templet cooperating with the guide, said templet comprising a plurality of separately 10- catable members having guiding surfaces corresponding each to a different portion of the edge contour of the shoe sole, and means engaging the shoe for locating each of said members with relation thereto to determine the outline on the shoe followed by the shoe operating devices.
6. A shoe machine having, in combination, devices for operating upon a lasted shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, a templet cooperating with the guide, said templet comprising a plurality of separately locatable members having guiding surfaces corresponding each to a different portion of the edge contour of the shoe sole, and means engaging the shoe upper for locating said members with relation to the shoe to determine the outline on the shoe followed by the shoe operating devices.
'7. A shoe machine having, in combination with devices for operating upon a lasted shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, a temp-let having guiding surfaces cooperating therewith, said templet comprising separate members having guiding surfaces extending respectively along each side of the shoe, and clamping devices on the jack for holding each of said members in clamping engagement with the shoe upper to determine the outline on the shoe followed by the operating devices.
8. A shoe machine having in combination, devices for operating upon a lasted shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, a templet comprising separate members having guiding surfaces extending respectively along opposite sides of the shoe sole, a pivotal mounting for said members on the jack adjacent the toe portionof a shoe located thereon, and clamping devices supported on the jack for engaging each of said members with the shoe upper to determine the outline on the shoe followed by the shoe operating devices.
9. A shoe machine having, in combination with devices for operating upon a shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a templet guid a templet cooperating therewith comprising two members having guide engaging surfaces overlapping to provide a continuous guiding surface around the toe and side portions of the shoe, a common pivotal mounting for said members on the jack adjacent the toe portion of a shoe located thereon, and means mounted on the jack for locating the heelward extending portions of said members with relation to the shoe upper to determine the outline on the shoe followed by the shoe operating devices.
10. A shoe machine having, in combination with devices for operating upon a shoe, and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a shoe supported on the jack, a templet guide, a templet cooperating therewith comprising two members having guide engaging surfaces overlapping to provide a continuous guiding surface around the toe and side portions of the shoe,-
a common pivotal mounting for said members on the jack adjacent the toe portion of a shoe located thereon, devices for locating the shoe toe longitudinally and laterally on the jack, and means mounted on the jack for locating the heelward extending portions of said members with relation to the shoe upper to determine the outline on the shoe followed by the shoe operating devices.
11. A shoe machine having, in combination, devices for operating upon a lasted shoe, a shoe supporting jack, jack actuating devices comprising means for imparting feeding, turning and tipping movements to the jack to position the shoe with relation to the shoe operating devices and transfer the point of operation along the bottom margin of a lasted shoe supported on the jack, a templet guide, and a templet mounted on the Jack surrounding the shoe and out of engagement with the shoe sole and having a guiding surface disposed for engagement vn'th said guide laterally of the shoe sole and cooperating with said jack actuating devices to determine the outline on the shoe followed by the shoe operating devices.
12. A shoe machine having, in combination, devices for operating upon a shoe, a shoe supporting jack, jack actuating devices comprising means for imparting feeding, turning and tipping movements to the jack to position the shoe with relation to the shoe operating devices and transfer the point of operation along the bottom margin of a lasted shoe supported on the jack, a templet guide, and a templet carried by the jack surrounding the shoe and having a guiding surface disposed for engagement with said guide laterally of the shoe sole and in a plane substantially below the surface of the shoe sole, and cooperating with said jack actuating devices to determine the outline on the shoe followed by the shoe operating devices.
13. A shoe machine having, in combination, devices for operating upon the sole margin of a shoe, a shoe supporting jack comprising a toe support and a heel support associated therewith, a templet comprising separate rigidly formed members mounted on said toe support and having guiding surfaces extending respectively along opposite sides of the shoe sole, means engaging the shoe upper for locating the shoe toe on said support, and clamping means engaging the shoe upper for supporting the heelward extending portions of said templet members to locate the guiding surfaces of the templet with relation to the sole margin of the shoe.
14. A shoe machine having, in combination, devices for operating upon a lasted shoe, a shoe supporting jack comprising a toe support and a heel support associated therewith, jack actuating devices comprising means for imparting feeding, turning and tipping movements to the jack to transfer the point of operation of the shoe operating devices along the bottom margin of a lasted shoe supported on the jack, a templet guide, a templet comprising two members having guide engaging surfaces supported on said toe support and extending respectively along each side of the shoe, means engaging the shoe upper for locating the toe portion of the shoe longitudinally and laterally on the toe support with relation to said templet members, and clamping devices mounted on said heel support for engagement with the shoe upper to locate the heelward extending portions of said templet members to determine the outline on the shoe followed by the shoe operating devices during the operation on the shoe.
15. A templet guiding device adapted for use with a shoe machine having shoe operating devices for performing an operation progressively around the sole margin of a shoe supported on a last, and a templet guide mounted on said machine, said templet guiding device comprising a templet having guiding surfaces for engagement with the templet guide to determine the outline on the shoe followed by the shoe operating devices, and clamping devices engaging the shoe upper to locate said templet in adjusted position on the lasted shoe.
16. A templet guiding device adapted for use with a shoe edge trimming machine having edge trimming devices for trimming the edge of the shoe sole progressively around the sole margin of a shoe supported on a last, and a templet guide mounted on said machine, said templet guiding device comprising a templet having guiding surfaces for engagement with the templet guide to determine the outline on the shoe followed by the edge trimming devices, and clamp-- ing devices engaging the shoe upper to locate the templet in adjusted position on the lasted shoe.
17. A templet guiding device adapted for use with a shoe machine having shoe operating devices for performing an operation progressively around the sole margin of a shoe supported on a last, and a templet guide mounted on the machine, said templet guiding device comprising a plurality of separately locatable templet members having guiding surfaces for engagement successively with the templet guide to determine the outline on the shoe followed by the shoe operating devices, and clamping devices engaging the shoe upper for locating each of said templet. members in adjusted position on the lasted shoe.
18. A shoe machine having, in combination, devices for operating upon a shoe and a shoe supporting jack relatively movable to transfer said devices along the bottom margin of a lasted shoe supported on the jack, a guide, a templet mounted on the jack and cooperating with the guide to determine the outline on the shoe followed by the operating devices, said templet comprising a plurality of separately movable members having guiding surfaces corresponding each to a diiferent portion of an edge contour of the shoe, and means for locating said members on the jack in operative position with relation to the shoe.
EUGENE J. RAY.
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