US1978538A - Machine for use in the manufacture of boots and shoes - Google Patents

Description

Oct. 30, 1934. J c JQRGENSEN 1,978,538

MACHINE FOR USE IN THE MANUFACTURE OF BOOTS AND SHOES Filed May 23, 1952 4 Sheets-Sheet l Oct. 30, 1934. J. c JQRGENSEN 1,978,538

MACHINE FOR USE IN THE MANUFACTURE OF BOOTS AND SHOES Filed May 25, 1952 4 Sheets-Sheet 2 G2 73 ,ea

Fig. 5.

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TclusLyQ W mmm Oct. 30, 1934. J, JORGENSENY 1,978,538

MACHINE FOR USE IN THE MANUFACTURE OF BOOTS AND SHOES Filed May 25, 1932 4 Sheets-Sheet 5 Fig. 6.

//\/ VE/V TU/a Oct. 30, 1934. Q JORGENSEN I 1,978,538

MACHINE FOR USE IN THE MANUFACTURE OF BOOTS AND SHOES "Filed May 25, 1932 4 Sheets-Sheet 4 Fi g. 10.

Q\ '5 94% iitww Patented Oct. 30, 1934 ":f

MACHINE FOR USE IN THE MANUFACTURE OF BOOTS AND SHOES Jacob C. Jorgensen, Beverly, Mass, assignor to United Shoe Machinery Corporation, Paterson, N. J a corporation of New Jersey Application May 23, 1932, Serial No. 612,953

25 Claims. (Cl. 1251) The present invention relates to machines for sure imparted to the shoe by the elevation of the preparing shoes, particularly welt shoes, for the jack. As herein shown, the leveling member inseam sewing operation by accurately shaping comprises a cross bar arranged to extend trans or molding the upper material, including the versely from one side of the heel-seat to the other flange of the counter, in those portions of the in a location somewhat at the rear of the point at 50 shoe adjacent to the ends of the inseam. In one which the insole ribs terminate.

aspect the invention consists in a novel machine It is importantto support the insole ribs achaving mechanism for leveling the heel-seat curately and strongly for themolding operation, combined with mechanism for molding the maras otherwise they are likely to become torn or disgin of the counter and upper material accuratel torted, and this operation is rendered difficult by to the shape of the last and the insole. reason of the fact that the insole ribs are likely An important field for my invention is in the to vary in location and in angleor direction in manufacture of welt shoes and for purposes of shoes of various sizes and styles. With these conillustration it will be described in its application siderations in view, an important feature of my thereto. In the manufacture of welt shoes after invention consists in inside formers adapted to be the heel-seat has been lasted and tacked and the positioned in the proper supporting relation to the shoe side lasted, there is likely to be found in the insole ribs regardless of the position of the latter. overlasted margin of the upper adjacent to the As herein shown, the positioning movement of heel breast line a bulge or lump caused by the the inside formers is elfected in a yeilding man- H bowing of the stiff counter material or its failure her, the formers being arrested by engagement to conform accurately and closely to the face of with the insole ribs with sufiicient pressure to inthe feather and side of the rib of the insole. This sure accurate contact and yet without danger is substantially the point at which the inseam of damaging the ribs. In this connection, there should begin and any irregularity in contour of is employed an actuator having a defined stroke 2 the overlasted upper at this point presents difliin each cycle of the machine and operating trains culty to the operator of the welt sewing machine which permit theinside formers to be brought to and makes it almost impossible for him to posirest when the desired contact with the ribs is tion the shoe so that the needle will strike exsecured and while the actuator completes its actly at the base of the insole rib in the vertex stroke. 3 formed by the juncture of the feather and rib. Another important feature of theinvention con- On the contrary, the needle is likely to engage sists in locking mechanism arranged rigidly to the upper material at a point outside this vertex, support the inside formers in whatever position making a wide stitch which is detrimental to fine of engagement they may assume. The mechashoemaking. I-Ieretofore, it has been left tothe nism I have selected for this purpose is particu- 3 shoemaker properly to shape the shoe at this larly advantageous in that it operates accurately location by pounding with an iron or a hammer without displacing or permitting, lost motion of to flatten the lump referred to and bring the the inside formers and it is, moreover, reliable counter and upper material into the desired shape and powerful in its action. As herein shown,

but this requires labor, time and skill on the part roller clutch mechanism is employed in connecof the operator and is likely to be slighted and tion with each operating train of mechanism by imperfectly performed. The machine of the which the inside formers are positioned. This present invention is designed to effect this com is operated automatically to lock the formers in forming operation by power, accurately and uniposition preparatory to the molding operation, family and in a more, clean-cut manner than it and to release them subsequently to be returned has been found possible to effect by hand. to initial position and to remain inoperative dur- The machine herein shown is adapted to oping the step of positioning the inside formers. erate upon a lasted shoe supportedupon a jack An outside former is associated with each inside and initially presented in operative position. In former and arranged for operative movement this position the heel-seat is first leveled, comwhen the latter has been located in rib-support- 56 pressed and accurately located as to height and ing position and locked therein. The outs de in respect to the operating instrumentalities of formers herein shown are moved in a yielding themachine. For this purpose there is provided manner in order that they may act uniformly 1n a leveling member which may be adjusted verticooperation with the inside formers under all cally in the machine and which, when thus adconditions of location. As herein shown, they are justed, is adapted to Withstand the vertical pres, arranged or Self adjusting O on mOVB- ment to angular positions determined by the location and angle of the supported insole rib. The combination of variably movable inside former and yieldingly and adjustably movable outside former constitutes another feature of the invention and contributes to the accurate and satisfactory performance of the machine of my invention.

These and other features of the invention will be best understood and appreciated from the following description of a preferred embodiment thereof, selected for purposes of illustration and shown in the accompanying drawings, in which Fig. 1 is a View of the machine in side elevation, certain portions of the frame being broken away;

Figs. 2 and 3 are detail views of the locking and inside former operating cams respectively;

Fig. 4 is a View of the machine in front elevaton, certain parts being shown in section;

Fig. 5 is a perspective view, partly in section, on an enlarged scale, of a portion of a lasted shoe showing the formers in operative position;

Fig. 6 is a plan view of the heel band mechanism;

Fig. "I is a view in front elevation, partly in section and on an enlarged scale, of the inside formers and associated mechanism, showing also a lasted shoe in operative position;

Figs. 8 and 9 are detail views of the mechanism for angularly adjusting the inside formers;

Fig. 10 is a view in side elevation, partly in section, of the hold-down and inside former operating mechanism; and

Fig. 11 is a view in perspective of the same parts of the machine.

The invention is shown herein as employing in its structure certain parts of the heel-seat lasting machine disclosed in U. S. Letters Patent No. 1,583,044, granted May 4, 1926 on an application of C. H. Hoyt. The frame, shoe-supporting and shoe-positioning mechanism of that machine are satisfactory and serviceable for their intended function in the novel machine herein disclosed. It will be understood that a machine of dissimilar appearance might well result from modifying these parts, although such modification would not affect the characteristic features of the invention.

The head frame 10, supported at a convenient height by a column 11, comprises a portion which is substantially U-shaped and horizontally disposed, opening toward the front of the machine, and an upright portion in which is journaled the main operating shaft 34 of the machine. A jack 12 is mounted in the column 11 to swing from a forwardly-inclined shoe-receiving position into a substantially vertical operative position as the shoe is presented to the machine. The jack contains a spindle 13 which is free to turn and 'is arranged to be lifted by treadle mechanism, not shown. The spindle 13 carries a toe rest 14, a portion only of which is shown in Fig. 1, and is provided at its upper end with a head 15 having a transverse guide slot in its upper end. A carrier block 16 is mounted in the head 15 for free transverse adjusting movement and a last bed piece 17 is mounted in the carrier block to tilt freely upon a transverse horizontal axis. The last bed piece is preferably provided with a last pin and serves to support the inverted. last so that it may adjust itself and find a fair bearing when the heel-seat portion thereof is subjected to vertical pressure, as will presently appear.

In various figures of the drawings is shown a lasted shoe in the position which it occupies when presented to the machine. The upper 23 is represented as having been conformed to the last and tacked about the heel-seat. The insole 21, with upwardly-extending ribs 22, lies upon the tread face of the last. The insole ribs may be formed in any commercial manner and it will be understood that the particular type of insole illustrated is selected only for purposes of illustration. The counter 24 is interposed between the leather and lining parts of the upper 23.

The jack 12 is provided with rearwardly and upwardly-extending arms 25, to the upper end of which is pivotally connected a horizontallydisposed rack 26. A transverse rock shaft 27 is journaled in the column 11 and provided with a pinion which meshes with the rack 26. A ratchet wheel 28 is fast on the outer end of the shaft 27 and arranged to cooperate with a pawl mounted in an oscillatory carrier 29, journaled to swing on the shaft 27. The carrier 29 is connected through a link 30 to the lower end of a compound cam lever 31 journaled to rock upon the axis of astud 32 projecting from the head frame 10. At its upper end the cam lever 31 carries a cam roll which is operated by a cam 33 upon the main shaft 34 of the machine.

At its rear end the shaft 34 is provided with a worm wheel 35 and this, in turn, meshes with a worm upon the transversely-disposed drive shaft 36. The driving shaft 36 may be rotated from any convenient source of power and clutch mechanism is provided thereon which is arranged to be tripped for starting the machine by a horizontal push rod having an operating head 37. The details of the clutch mechanism are not I,

herein shown, beyond the stopping cam 127 and cam roll 130, as they form no part of the present invention.

Within the U-shaped opening of the frame 10 is provided heel-end clamping mechanism for accurately positioning and firmly holding the shoe during the operation of the machine. To receive and embrace the heel-end of the shoe, a flexible heel band 40 is supported at its rear end by a pair of spaced clips 41 carried at the ends of diverging adjustable arms 42. The arms 42 are mounted for limited vertical movement on a post 43 which is carried at the forward end of a slide 44 mounted in a guideway formed in the head frame and being adjustable therein from front to rear. A horizontal shaft 45, withv gear teeth out in the inner end thereof, is arranged to mesh with rack teeth formed on the lower face of the slide 44. The shaft 45 extends outwardly through the head frame 10 and is provided with an operating arm 46 within convenient reach of the operator. The arm 46 is associated with a toothed segment and provided with a spring detent by which it is maintained in any position of adjustment. It will be understood that by rocking the arm 46 and turning the shaft 45, the slide 44 may be moved forwardly or rearwardly, thereby determining accurately the inner limity of movement of the lasted shoe when in operative position. A further support for the rear end of the band is provided by a backing member 39 which" is mounted upon or formed integral with the post 43.

The heel band 40 is of sufficient length to extend substantially to the shank of the lasted shoe.

swinging arms 49. To assist in pressing the band against thesides of the shoe in conformity to the counter thereof, the studs 48 carry blocks 56 which have curved contact faces for engagement with the band. i

To assist in pressing the band inwardly against the contour of the end of the shoe, the arms 42 are arrangedto be engaged byspring plungers 54 which are carried by arms 53 projecting forwardly in a divergent manner from the slide 44; This construction permits the band to yield slightly when the shoe is forced rearwardly into operative position, so that the band is conformed accurately to the heel-end of the shoe.

For closing the band and forcing it inwardly against the sides of the heel-end portion of the shoe, the machine is provided with leverarms, not shown, which are connected tothe arms 49 to swing the latter inwardly. The connections comprise adjustable-links 52. These notonly contract the sides of the band by a toggle action as the shoe is forced inwardly but may be swung furtherinwardly by power, as fully disclosed in said Patent No. 1,583,044. It will be understood,

however, that, as in the machine of said Patent No. 1,583,044, the cycle of the machine is divided into two parts. After the jack is swung rearwardly by the operator. to present the shoe to thamachine and themachine started, the cam lever 31 is rocked and'the jack pulled rearwardly to the limit of its movement by the pawl and ratchet mechanism already described. The jack spindle l3is also lifted by power to subject the shoe always to a uniform degree of vertical pressure suflicient to level the heel-seat thereon The heelband is at the same time contracted firmly to engage and position the shoe and the forming or moldingtools, to be presently described, are brought into operation. The machine is then stopped with the shoe under pressure to give the stock time to settle itself under conforming pressure. Upon starting the machine for the second time, the parts are automatically returned to their initial positions.

Above the Ushaped portion of the head frame 10 and bolted to'the forward ends'thereof'is a to the lower end of the post "63. The post 63is' provided with threads 64 and passes upwardly through an internally-threadedworm wheel 65' which is confined in the block '61 andacts as a' stationary nut for the threaded stem. The worm wheel 65 is arrangedto mesh with a horizontallydisposed, jointed Worm shaft 66 which extends i outwardly from the casing 60 toward the righthand side of the machine, as shown in Fig. 4.

At its outer end, the worm shaft 66 has a geared connection, enclosed in a housing 68, with a-for-' weirdly-extending shaft provided with a hand wheel 6'7 located within convenient reach of the relation to the forming tools, and in presenting the shoeto the machine the operator will elevate the jack spindle through its treadle connection-until further movement is arrested by contact of the cross bar 62 with the heel-seat of the shoe. This relation of the shoe and cross bar is shown in Figs; 5 and '7.

The inside formers will now be described. The supporting block 61 is provided with a pair of forwardly-extending trunnions or studs 70, upon each of which is mounted a swing arm 71 forked at its upper end to embrace one of the studs '70. Each arm '71 is provided in its lower end with a longitudinal bore in which is received an oscillating holder 72. Within the holder 72 is disposed the cylindrical stem of the inside former 73, as shown in Figs. 4 and 7. The holder 72 is provided at its inner end with longitudinally-extending teeth which mesh with circular grooves 75 formed in an adjusting screw 74 having a knurled head for convenience in turning. The adjusting screw 74 is also provided with threads '76 which cooperate with internal threads in the arm 71. The holder '72 is provided with an outwardlyextending pin '77 which passes through an outwardly flaring slot'78 in the arm 71 and engages the forked end of an indicator arm 79 pivotally mounted upon the front face of each swing arm 71. A scale 80 upon the face of the arm cooperates with the indicator arm. It will be apparent that by moving the adjusting screw 74, the holder 72 may be oscillated in the arm 71 and that its angular position will be indicated by the position of the indicator arm '79 on the scale 80. The adjustment discussed provides for the accurate angular positioning of the inside former 73 so that its effective face may be brought into parallelism with the insole rib of the particular shoe being operated upon.

The stem of each insider former is provided with a key 82 which slides ina keyway in the wall.

of the holder '72, thereby permitting relative longitudinal movement of the two parts but maintaining them in a fixed angular relation. A com pression spring 81 is interposed between the end of the stem of the former 73 and the bottom of the holder 72 and this acts normally to protrude the former 73. It is limited in its outward movement by a retaining plate 83 secured by screws to the arm 71 in the path of the key 82 and this plate'isextended so that it serves also to retain the holder 72 in place. The two swing arms 71 are connected below the studs '70 by a tension spring 84 which tends always to swing them inwardly to a central initial position, in which they are in contact with each other and with a projecting center web portion of the block 61, as shown in Fig. 4. The swing arms are moved outwardly to carry the inside formers '73 into contact with the insole ribs by mechanism which will now be described. 1

The block 61 is provided with a pair of vertical guideways formed in part by gibs 94 and 95, best shown in Fig. 11, and retained in place by gib screws 96. In each of these guideways is mounted a rectangular slide having rack teeth cut in its inner face and a downwardly-extending stem 91 to which is connected a hardened wedgeshaped cam block 92. The cam block 92 is removably connected to'the stem 91 and is backed up by the inner face of the guideway. In initial position, bothwedge blocks occupy an elevated position, as shown in Fig. 4, in close proximity to.-

the position shown in Fig. 4 to some such position as that shown in Fig.- 7. To eliminate unnecessary friction in the face of each swing arm is provided a rounded contact face 85 with which the face of the wedge block directly engages. At its upper end each slide 90 is provided with an upwardly-extending stem 93 and these are guided in vertical bores extending through the top' of the casing 60.

The block 61 is provided with a second pair of vertical'guideways located parallel to and behind the guideways for the slides 90, and in each of these second guideways is mounted a slide 97 having rack teeth in its front face and an upwardlyextending stem 98 guided in a vertical bore extending through the top of the block imm diately behind the bores occupied by the stems 93. A horizontal shaft 100 is journaledin-the casing 60 and is providedwith a pair of separate drums 102, each having a pinion 101 meshing with the rack teeth of one pair of slides 909'l, as shown in Figs. 10'and11. The result of this connection is to impart equal and opposite movementfrom the slide 97, which is acutatedto the slide 90, which operates one of the swing arms 71.

Each upwardly-extending stem 98 is provided with a forked head 99' which is disposed above the top of the'casing 60. A pair ofv upwardly and rearwardly-extending brackets 108 are bolted to 1 the top of the casing 60 and provide bearings for a stationary horizontal shaft 109. A pair of bell crank levers are journaled upon the shaft 109. Each of these has a forwardly-extending arm 110 having a sliding block connection with the head 99 of one of the actuating'slides 9'7 and a rearwardly-extending segmental arm 111 .slotted to receive a hardened segmental plate 112. The plates 112 are adjustably retained inplace by clamping screws 113 and each is provided in its curved periphery with a notch having a straight front wall and a slightly beveled rear wall. A dog 114, shaped to fit this notch, is pivotally mounted at its forward end upon a stud 115 disposed crosswise in a lever 116 mounted to swing upon the L shaft 109 between the two bell crank levers 110 *111. The lever 116 is provided at its upper end with a head 11'] in which are provided-vertically arranged sockets for compression springs 118. Each of the dogs 114 is provided with a boss 119 having a socket to receive the lower endof one of the springs 118, and the head is provided with a pair of adjusting screws 120 for regulating the compression of each spring 113 and thereby the pressure of engagement of the dog 114 against the notched segment plate 112.

"'- end of a slide 125 which is mounted for vertical movement in ways formed in the: head frame. The slide 125 has a rearwardly-projecting cam roll 126 which runs in the cam track of a cam disk 12"], fast on the main shaft 34 of the machine. The outline of the camtrack is shown in Fig. 3,

from which it will be seen that in the stepped position of the machine the slide 125 occupies a position at the upper limit of its stroke. When the cam is rotated in'a counter-clockwise direction, as seen in Fig. 3; the slide 125 is-moved downwardly, and through the train of mechanism above described the lever 116 is rocked rearwardly, the dogs being maintained in the notches of the segment plates 112 by the compression springs 118. Accordingly, the levers 110-111 are both rocked to lift the slides 97, rotating the pinions 101 and lowering the slides 90 with the wedge-shaped cam blocks 92, thereby separating and outwardly swinging the arms '71 with the insideformers. When either former encounters theinsole rib so that its movement is arrested, the dog 114 which is included in the train of mechanism operating that particular former will ride out of the notch in the segment plate 112, lifting in opposition to the compression spring 118. The former and its operating train of mechanism back to and including the segment plate 112 is thus permitted to remain at rest while the dog 114 is free to complete its stroke, moving idly on the periphery of the segment plate. It will be understood that the formers 73 are each provided with a smooth plane outer face which is adapted to contact with the inner face of the insole rib, supporting it for an appreciable length over its entire area from root to upper edge. The former is flanged laterally, as indicated at 86, for the purpose of increasing its eifec tive length and the angle between its end or bottom'face and its rib-engaging face is somewhat less than a right angle to insure that the lower edge of the former may be fully bedded into the insole at the root of the rib. The operative position of the inside formers is well shown in Figs. 5 and '7 where these tools are represented as in the positions which they occupy when arrested by contact with the insole ribs 22. The angular position of the formers is preliminarily adjusted by turning the adjusting screws "14 so that the operative face of each former coincides in angle and direction with that of the insole rib. The wedge blocks 92 have been lowered variable amounts by the operating trains of mechanism actuated by the slide 125 and the next step in the cycle of the machine is that of locking the wedge blocks 92. so that the inside formers will be rigidly supported to withstand molding pressure applied to the outer face of the insole ribs.

The locking mechanism for the wedge blocks 92 will now be described. Each of the drums 102 is provided at its outer end with an annular flange 136, this being received in a circular recess formed in the casing 60 and closed by a cover plate 135b0lted to the casing. Arranged concentrically with respect to each annular flange 136 is an inner disk 138 connected by a series of pins 139 with an outer disk 137, the latter being journaled in a recess formed in the inner face of the cover plate 135. The disks 137 and 138 have also tongue and slot connection with a sleeve 141 journaled upon the shaft 100. Each of the inner disks 138 is provided with a rearwardly-extending arm 140 by which the cage, which is formed by the two disks, the sleeve 141 and the pins 139, may be oscillated for a purpose which will presently appear. A thick stationary disk 142 fills the space within the annular flange 136 and has peripheral pockets, each tapering toward one end and arranged to receive one of the cross pins 139. The disk 142 may be termed the brake disk and is anchored by means of a series of flanged pins 143 which; project into the body thereof fro-m the cover plate 135. The outer disks 137 are slotted where the pins 143 pass through them to permit the necessary angular movement. A hardened clutch roller 144 is located in each pocket. One

masses of the cross pins 1 39 passes through each of these pockets behind a roller 144 and a spring plunger 145 tends always to move the roller toward its pin 139 and toward the narrow end of the pocket. When the roller is permitted to advance in the pocket, it becomes engaged between the inner face of the annular flange 136 and the bottom of its pocket in the brake disk 142, and the two are looked rigidly together, as in the well-known roller or Horton clutch.

The locking. mechanism is shown in Fig. 10 in initial position, wherein the annular flange 136 is freeto rotate as the slides 90, are movedin advancing the inside formers to operative position, and in this position the cage has been rocked.

by the arm 140 to force the spring plungers inwardly and hold the rollers 144 in the wide portion of their pockets in the brake member. The arm 146 of each disk 138 is connected by a downwardly-extending link 146 of adjustable length to one of two arrns 147 which extendsforwardly from a rock shaft 148 journaled in bearings secured to a portion of the frame 10. At an intermediate point the rock shaft 148 is provided also with a rearwardly-extending arm 1.49 having a pin and slot connection with the lower end of an arm 151 projecting downwardly from a slide 156 which is mounted in a vertical guideway in the upper portion of the head frame. The arm 151 is provided with a cam roll 152 running in a cam track in the forward face of a cam disk 153 secured to the forward end of the cam shaft 34. As shown in Figs. 1 and 2, the slide occupies initially its lowermost position in the guideway. When the machine is set in operation and the shaft 34 has turned 45 or thereabouts, the slide 156 is raised, the rock shaft 148 rocked in a counter-clockwise direction, and the arms 146 of each cage are swung downwardly, moving the cross pins 139 to permit the rollers 144 to lock the annular flange 136 rigidly to the static-nary brake disk 142. The drums162 are thus, held rigid and the wedge blocks 92 are locked so that the swing arms 71 and the inside formers are held rigidly in position. 1 The inside formers are. maintained in locked position during something. over 200 of the machine cycle, and thereupon the slide 156 is lowered and the arms 140 swung upwardly to their releasing position, as shown in Figs. 1 and 10. I

The outside formers 160 which cooperate with the inside formers in effecting the operation of molding the marginal upper material, including the counter, against the supported rib of the insole are each provided with an inwardly-extending molding flange 161 and are mounted for angular adjusting movement so that the molding flange maybear fairly and assume a position in which its efifective face is parallel to the face of the inside former. To this end, the body of each outside former 160 is provided with a dove-tailed segmental portion 159 and this is mounted in an arcuate guideway formed in the head 162 of a slide 163, best shown in Fig. 6. Each inside former is, therefore, free to adjust itself about an axis which lies substantially in its effective face. The adjusting movement of each former 160 is confined within suitable limits by a stop plate 158 secured to the forward side of the head 162 and a stop pin 157 which projects into the arcuate guideway in the head 162.

Each slide 163 is guided for horizontal movement toward and from the heel-seat of the shoe in the machine in guideways formed in the head frame 10. Each slide 163 is of a compound character, having an auxiliary section 164 with an adjustable stop screw 165 threaded into its outer end which engages one end of a stiff compression spring 166 seated in-a longitudinal bore formed in the body of the slide 163. The auxiliary section is provided in its rear face with rack teeth which mesh with a pinion 167 rotatably mountedupon a vertical shaft 168 journaled in the frame 16. The pinion 167, in turn, meshes with a gear segment on the forwardly-extending arm of a bell crank lever 169 journaled on a vertical stud 170. Each bell crank lever 169 has an inwardlyextending arm having another gear segment thereon which meshes with rack teeth in a slide 156 which is guided. for movement fromfront to rear in a guideway formed in the head frame 10 but which is not shown in the present drawings. Ihe slide 156 is provided with a cam roll which runs in the cam track of a cam 154 on the shaft 34 and which is effective to reciprocate the slide forwardly and rearwardly at the proper time in the machine cycle. The slide 156 and its details of constructionv are more fully shown in my prior Patent No. 1,852,015, granted April 5, 1932, to which reference may-be had. It will be understood from the foregoing description that the outside formers are moved inwardly under powerful spring pressure and, on account of the compound character of the slide 163 and the arrangement of the spring 166, they are brought to rest in positions of pressure determined by the positions in which the inside formers have been previously locked.

The operation of the machine will be apparent from the foregoing description but for conven ience. may be summarized as follows. The lasted shoe is jacked and swung rearwardly-by the operator into the heel clamp 40, which tightlyclamps the upper material to the sides ofthe last about the counter portion thereof. The final positioning movement of the jack is effected mechanically by the power of the machine both in respect to its inward movement and to its upward movement, the latter being determined by the position of the leveling bar 62 which flattens and levels the heel-seat at the desired predetermined height. The slide 125 is then lowered and, through its operating train, each inside former is moved outwardly from the initial position shown in Fig. 4 to the. operative position shown in Fig. '7, in which the two insole ribs are engaged and supported in whatever position they may happen to be. Theslide 156 is thereupon raised and each inside former rigidly locked in position of pressure. The horizontal slide 156 is thereupon advanced and the outside formers are moved inwardly, wiping over the marginal upper material, including the flange of the counter, and molding this into conformity to the shape of the face and rib of the insole. In this operation the A stiff counter material is leveled so that the lump which would otherwise occur at the point where the inseam should startis entirely eliminated. The machine is brought to rest with the parts in the position shown in Fig. 7, when the projection 128 on the cam 127 encounters thecam roll 130 of the stopping mechanism and the material to be molded is thus heldunder molding pressure for an appreciable interval of time. When this has elapsed, the machine is started for the second time in its cycle, whereupon the outside formers are retracted, the drums 102 are unlocked, the Wedge blocks 92 are elevated, permitting the spring 84 to return the inside formers to initial position, and finally the heel clamp is released,

allowing the shoe to be moved forwardly out of the machine.

In the foregoing discussion, emphasis has been laid upon the improvement made in the condition of the shoe with reference particularly to the inseaming operation. This is an outstanding improvement resulting from the use of the machine but it will be appreciated that all the subsequent shoemaking operations upon the heel-seat and shank of the shoe are facilitated and the results made more accurate and satisfactory by the accurate shaping and molding of the marginal upper material including the flange of the counter adjacent to the heel-breast line of the shoe. Ihe lines of the finished shoe are improved and its contour is brought more accurately into conformity with the shape of the last. For example, the accuracy of the welt butting operation is improved and a smooth line may thus be secured at the juncture of the welt and outsole. These and similar benefits contribute to improve the quality of the shoemaking of shoes operated upon by the machine of my invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a machine of the class described, formers movable upon an insole bottom into engagement with the ribs at opposite points therein, an independent train of mechanism for advancing each former until arrested by one of the ribs in whatever position the latter may occupy, means for holding said formers in their rib-engaging positions, and means for shaping the ribs while so engaged.

2. In a machine of the class described, inside formers each arranged to be moved outwardly a variable amount from an initial position adjacent to an insole into engagement with the rib thereof at opposite sides, separate means for rigidly holding each former in rib-supporting position, and outside formers movable to shape the marginal upper material in cooperation with said inside formers.

3. In a machine of the class described, a shoe support, inside formers movable from an initial contracted position, out of contact with the insole of a shoe on said support, into expanded position in engagement with the insole rib at opposite sides of the shoe, the expanding movement of each former being determined by the location of the portion of the rib engaged thereby, locking means for the formers acting automatically to hold each former in its rib-engaging position, and outside formers movable thereafter to shape the marginal upper material to the rib.

4. In a machine of the class described, inside formers each arranged to be moved outwardly between opposite portions of the rib of an insole until arrested by engagement with said rib, means for locking each former in rib-engaging position when so arrested irrespective of the position of the other former, and outside formers independently movable to shape the interposed material to the ribs with a predetermined degree of pressure.

5. In a machine of the class described, means for supporting and positioning a lasted shoe having an exposed insole, an inside former pivotally movable to engage the inner face of the insole rib, a fixed throw actuator therefor, and an operating train having a slip connection therein acting variably to position the former wherever it may engage the rib.

6. In a machine of the class described, means mes es for supporting and positioning a lasted shoe having an exposed insole, tools movable to engage and shape the upper and insole rib between them, one of said tools being pivotally movable about a fixed axis, a fixed-throw actuator for the lastnamed tool, and an operating train acting variably to position said tool wherever it may engage the insole rib.

7. In a machine of the class described, means for supporting a lasted shoe with its insole exposed, cooperating tools movable to engage and shape the counter and upper stock to the insole rib, an actuator movable in a fixed path, an operating train for variably positioning one of said tools in whatever position it encounters the rib, and means for locking said tool in position while the other is moved in opposition thereto.

8. In a machine of the class described, means for leveling the lasted heel-seat of a shoe at the rear of the insole ribs, inside formers movable outwardly into contact with the inner faces of the ribs, the outward movement of each of said formers being dependent upon the lateral position of the rib engaged thereby, and molding tools movable inwardly to conform the upper stock to the outer faces of said ribs while the latter are so contacted.

9. In a machine of the class described, means for subjecting the lasted heel-seat of a shoe to vertical pressure to level the same, inside forl ers independently movable upon the insole of the leveled heel-seat until arrested by engagement with the opposite ribs thereof, outside formers movable to conform the upper stock to said ribs while engaged by the inside formers, and separate locking means acting to hold each inside former during the action of the outside formers.

10. In a machine of the class described, a

transverse bar, means for forcing the lasted heel-seat of a shoe against the same, inside formers located in advance of said bar and movable outwardly until arrested by engagement with the insole ribs, a separate lock for each inside former, and outside formers movable indegagement, and outside formers arranged to operate while the inside formers are so locked.

12. In a machine of the class described, means for supporting the lasted heel-seat of a shoe in a defined plane, inside formers movable transversely of the heel-seat, and an operating train for each former including a lever having a notched segment plate, and a dog having a fixed path of movement yieldingly maintained in actuating engagement with said segment plate but arranged to be forced out when its related formor encounters the insole rib.

13. In a machine of the class described, means for leveling the lasted heel-seat of a shoe in a defined plane, inside formers movable transversely of the heel-seat, a wedge member for advancing each former until it is arrested by engaging the insole rib, and an operating train for advancing each wedge member having a slip connection rendered efiective variably to terminate the movement of the wedge member.

Eiil

14'. In a machine of the class described, means for supporting the lasted heel-seat of a shoe in predetermined position, an inside former movable toward and from the insole rib, a cam shaft having two actuating cams thereon, a train of operating mechanism between one of said cams and said former for moving the same, and a second train of operating mechanism between the other of said cams and said former for looking it against retracting movement after it has encountered the insole rib.

15. In a machine of the class described, means for leveling the lasted heel-seat of a shoe at a predetermined height, a former shaped to engage the inner face of the insole rib, a spring for moving the former away from the rib, a wedge-shaped member movable variably to advance the former toward said rib and to back it up in whatever position it may encounter the rib, and separate means for locking said member in said backingup position.

16. In a machine of the class described, means for supporting the lasted heel-seat of a shoe in predetermined position, an inside former having a face adapted to engage the insole rib thereof, means for angularly adjusting said former to bring its face into parallelism with the rib, and mechanism for moving the former into supporting relation to the rib.

17. In a machine of the class described, means for positioning the lasted heel-seat of a shoe, an inside former variably movable to engage the insole rib thereof and being adjustable into conformity to the angle and direction of said rib, and an angularly adjustable outside former movable to shape the marginal upper material to the outer face of the rib when the latter is engaged by the inside former.

18. In a machine of the class described, means for supporting a lasted shoe with its insole exposed, angularly adjustable inside formers variably movable to positions in engagement with the ribs of the insole, means for locking the formers in such positions, and outside formers yieldingly movable toward the engaged ribs and free to conform angularly to the direction thereof.

19. In a machine of the class described, means for supporting a lasted shoe with its insole exposed, angularly adjustable inside formers variably movable to positions in engagement with the ribs of the insole, means for locking the formers in such positions, and an outside former movable in a path opposite to each inside former and shaped to wipe the marginal upper material over the last bottom and into the vertex of the angle between the engaged rib and the adjacent surface of the insole.

20. In a machine of the class described, a heel band for clamping the lasted upper to a last about the heel-seat thereof, inside formers variably movable transversely of the insole for supporting the insole ribs substantially at the heel breast line, the movement of each of said formers being independent of the movement of the other, and outside formers movable transverse- 1y across the edge of the heel band to wipe the marginal upper material over the last bottom and into the vertex of the angle between the supported rib and the face of the insole.

21. In a machine of the class described, cooperating pairs of molding tools of which the tools of each pair are relatively and transversely movable to engage and simultaneously mold only that portion of the marginal upper material forwardly of the lasted heel-seat of a shoe at opposite sides thereof, means for supporting and vertically moving the shoe into operative relation with said tools, and vertically adjustable means for leveling the heel-seat and positively fixing its position in range of said tools.

22. In a machine of the class described, means for supporting the heel-seat of a lasted shoe in predetermined position, an inside former having a face adapted to engage the face of the insole at the root of its rib and another face adapted to contact with the inner face of said rib, means for moving said former to exert a predetermined pressure upon the rib, means for locking the moving means, and a cooperating former arranged to mold the marginal upper material against the rib while the insole and rib are engaged in the manner set forth.

23. In a machine of the class described, a shoe support, means for clamping the'upper material about the counter of a lastupon the support, a wiping and molding tool movable inwardly over the last bottom adjacent to the heel-breast line to flatten the marginal portion of the upper material toward the tread face of the last and mold itinto the vertex of the angle between the feather and rib of an insole, means movable transversely of the insole for supporting the insole rib from the inside in whatever position it may be acted upon by said tool, and means for locking said supporting means in operative position.

24. In a machine of the class described, a shoe support, means for clamping the upper material about the counter portion of a last upon the support, a transversely reciprocating slide having a curved guideway therein, a wiping and molding tool shaped to flatten the marginal upper material toward the tread face of the last and mold it into the vertex of the insole rib, said tool being freely movable in said curved guideway whereby it may conform itself to the angle and direction of the insole rib, and angularly adjustable means for supporting said rib from the inside in whatever position it may occupy upon the last.

25. In a machine of the class described, means for supporting the lasted heel-seat of a shoe with exposed insole, tools for engaging the upstanding margin of the upper material and insole rib at both sides of the shoe forwardly of the lasted heel-seat and simultaneously molding the same, the rib engaging tools being relatively movable in variable amounts transversely of the shoe bottom and power-operated mechanism for contracting and expanding said tools.

JACOB C. JORGENSEN.

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