US1691287A - Machine for operating on footwear - Google Patents

Description

Nov. 13, 1928. 1,691,287

E. A. HOLMGREN MACHINE FOR OPERATING ON FOOTWEAR Original Filed Sept. 25, 1919 3 sheet -Sh et 1 Nov. 13, 1928. 1,691,287

E. A. HOLMGREN MACHINE FOR OPERATING 0N FOOTWEAR Original Filed Sept. 25, 1919 5 Sheets-Sheet 2 Fig. 2.

Nov. 13, 1928.

E. A. HOLMGREN MACHINE FOR OPERATING ON FOOTWEAR I: Sheets-Sheet e 25, 1919 is 72 w m l n m HM Patented Nov. 13, 1928.

UNITED STATES PATENT: oFFic ERIC A. HOLMGREN, OF EAST LYNN, MASSACHUSETTS ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, PATERSON, NEW JERSEY, A GORPORATION'OF NEW JERSEY.

MACHINE FOR OPERATING N FOOTWEAR.

Application filed September 25, 1919, Serial No. 326,178. Renewed November 9, 1926.

This invention relates to the manufacture of boots and shoes and by way of illustration is herein shown and described as embodied in. j a machine for forming or molding the heel.

seats and counters of shoes. In the manufacture, for example, ofshoes to which wood heels are to be attached it is common to shapetheheel seat and conformthe upper materials to the contour of the last by the use of a machine constructed to subject the heel seat,

while the'shoe is on a last, to the pressure oi a shaping die or'block the face of which corresponds substantially to that of the upper or attaching face of a wood heel, a series of manually effected hammer blows being delivered aroundthe heel' end oi the shoe adais to provide a machine capable ofperforma ing the work above described satisfactorily the invention provides a machine having means tor shaping the shoe bottom, as by holding a shoe under molding pressure at the heel seat end, and means for shaping the counter and upper material at the heel end I of the shoe for example, by a succession of rapidly repeated pressures while the molding pressure continues, tor the purpose of effecting more satisfactorily, as well as more ex peditiously and with less labor, the shaping which heretofore required manual hammen "ing by expert workmen; A further object is to utilize heat in "this shaping. operation, preferably in a novel combination including movable wipers and carriers therefor in which electric heat units are mounted.

In accordance with another object of the invention, means isprovided for ensuring uniform predetermined molding pressure on the'heel seats of lasted shoes whatever the sizes and economically, and with this object in view of the lasts, said means comprising primarily a novel organization of spring-controlled toggles. I I a I In the illustrated machine this object is accomplished by a primary toggle constructed and arranged to supporta work carrier, and a secondary toggle having means for yield ingly resisting breaking movement thereof, the latter toggle being so connected to the first-mentioned toggle as to yieldinglyresist excessive pressure transmitted through the work carrier to the primary toggle.

It is recognized that thisand other features of the invention illustrated may have. other uses including application to machines of types other than heel seat forming machines.

These and other objects and features of the invention will be explained in the following description and the novelty'then pointed out in the appended claims.

In the drawings,

1 is a side elevation, partly broken out, of an illustrative machine embodying my improvements;

Fig. 2 is a view similar totlie upper portion of Fig. 1 on a larger scale and more exten sively broken out; y i

Fig. 3 is a detail plan view of the molding devices-and their carrier; f i

Fig. d is a front elevation, partly broken out, of the parts shown in. Fig. 3;

Fig. 5 is a perspective view, partly broken out, of the two mold holders with one mold.

in place; and m Fig. 6 is a broken-away perspective View ofqpart of amold holder with itselectric heating means. p I

A suitable frame 12 is formed or provided with a bracket extension'carrying a bearing 13 (Fig. 1) to pivotally support ajlever 14, said lever being pivotally connected at '15 to the lower end of the lower member of a toggle 16 the upper member ofwhich is pivotally supported at '17.

,To the knuckle 18 of the toggle is connected one end ota spring 19, the other end' of, which is suitably secured to the frame sofas to'eXert a constant tendency to; hold the toggle 16 in the position shown in Fig; 1. Adjust ably todetermine the normal relative a-i'igulm" loo pin 24 is carried by a swinging post.

structure of this post is best illustrated in positions of the two members of the toggle 16, the upper member is provided with an arm 20 having a screw 21 adapted to contact with an abutment 22 of the frame. By adjusting said screw the normal ai'ig'ular position'mentioned can be regulated. t is desirable, however, to provide further'means for limiting from assuming a dead center position.

Consequently, during operations hereinafter described, the ,toggleis certain to break.

' To support the last carrying a shoe during the operations hereinafter described, the jack The Fig. 2. A portion of the shank of the jack v pin is threaded at 25 and the lower end 26 of said shank slidably fits a socket in a post 27 which is pivotally supported at 28 as hereinafter described, so that the jackcan be pin. I mg 111 the socketed post 27, its lower end is provided w th a vertical groove 35 which is swung to and from the positions indicated in Figs. 1 and 2. oenable the jack pin to vbe vertically adjusted and at the same time yieldingly supported, the threaded portion 25 engages an internally threaded upper portion of a sleeve 29 having an internal shoulder 80 arranged to co-operate with the upper end 31 of the post 27 thereby limiting downward movement of the jack pin 24. A spring confined between a collar 33 of the post 27and an internal shoulder 34 of the sleeve 29 yieldingly supports the shank of the jack To prevent thesaid shank from, rotatengaged by a screw or pin 36 mounted in the 0st 27 a T 1e jack carries a toe rest as'indicated at 37, said toe rest being'of any usual 'or preferred construction."

A link'38'connects the pivot 28 to a pivot pin 39 mounted in the frame, the object of primary togglestructure comprising upper and lower members 40, 41 (Fig. '1) having a knuckle connection 42, the lower member being pivoted at'43 to the outer end of'lever 14 (Fig. 1). Thetoggle operating 44' is pivotally connected at one end to the'toggle knuckle 42 and at the other end 45 2) to the lower end of a -leve1f46avhich is carried by a stud rockshaft 47 mountedin the frame, said-lever 46 having a roll 48 engaging a path cam 49 m one'face of a disk carried by the cam shaft'SO, the latter having also a-drivmg gear 51.

It is preferable that the shaft 50 shall, when operated, come to rest at the end of a single revolution. To thisend it is rotatably connected with the gear 51 by a suitable onerevolution clutch such as a Horton clutch. As such devices are well known, it is unnecessary to illustrate or describe the details thereof further than to explain that the arm 52 ig. 1), pivoted'at 53 and havi-nga spring 54, 1S acted upon by means of a rod or link 55 connected witha foot lever 56, the connections of such clutch being that the operator, by depressing thelever 56, will connect the constantly rotating gear 51. to the shaft '50 so as to impart-a single revolution tosaid shaft. i

iAny suitable means for constantly rotating the gear 51. may be employed, such as a pinion 57 carried by a'shaft 58 havinga. belt pulley 59.

' When the shaft 50 revolves, its'cain 49 actuates the lever 46 to impart a thrust to the link 44 so as to straighten or nearly straighten the toggle members 40, 41,-and raise the jack post.- At this point it is advisable to explain that prior to this straighteningaction of the toggle the operator will have manually swung the jack from the position shown in Fig. 1 to that shown in Fig. 2 to bring the last and its shoe to proper position for operation. Spring 32 serves at this time to hold theshoe up with its heel seat in contact with a die, hereinafter described, and to prevent accidental move= ment of the shoe after the operative has brought it into the proper position. After this cam 49 is actuated to straighten the ggle 40., 41 thrusting the last and shoe forcibly against the die.

To limit the outward position to which the jack may be swung, the post 27 has a lug 6O whichwill contact with a stop lug (ii at the outer end .of link 38;

To receive the pressure when the jack is elevated by the toggle mechanism described, a die or block 62 of selected shape to give the desired form to the heel seat is removably mounted in a holder 63 having a shank 64 mounted in an externally threaded sleeve 65 which'isprovided with an annular external groove (56. A. set screw 67 passes through the bearing for the sleeve 65. By rotating the sleeve 65 the height of the form block 62 relatively to the mech'anisn'i below it is ad justed and such adjustment is maintained by the screw 6?. To'prevent rotat on of the holder 63 and its form block, a pin 68 enters a recess in the holder 63, said pin being carried by a bracket 69 having a cured in the frame 12.

A Inoldcarrier 71 having a recessed front portion as indicated in Fig. 3 is supported by'a yoke 7 2 (Figs. 2 and 4) which in turn is supported and actuated by parallel mem-' bers one of which comprises a link 78 pivoted pin 70 seto the yoke at 74; and to the frame at 5. The

lower end of the yoke 72 is pivotally connected at 7 6 with an arm 77 of a rockshaft 78 mounted in the frame. Said rockshaitt has another arm 79 the outer end of which is ball shaped. Bearing againstthe under surface of the ball end 80 is a bearing collar 81 mounted on a rod 82 and adjustable thereon by set nuts 83. The upper surface of the ball end 80 of the lever receives the pressure of a collar 8 1 slidably mounted on the rod 82 and acted upon by a spring 85, the degree of compression of which is adjustable by means of set nuts 86 on the threaded upper end of rod 82.

The lower end of the rod 82 is pivoted at 87 to a lever 88 one end of which is pivotally supported on the frame pin 89, the other end carrying a roll 89 engaged in a path 02111190 in one face of a disk carried by shaft 50. The cam path 90 as shown has a contour capable of imparting three complete oscillations to the lever 88, while the heel-seat molding pressure is being maintained, the mold carrier 77 being consequently moved vertically three times in each direction during the cycle of movement.

A rockshaft 91 *igsf 1 and 2) isrprovided with a downwardly extending arm 92 having a tip 93 adapted to engage the tip 9a of an arm 95 of the rockshaft l'l. An upper arm 96 of the rockshaft 91 is connected to the outer end of a tension spring 97 the other end of which is suitably fixedly connected-to the frame. The rockshaft 91 also has two other arms98, one of which is indicated in Fig. 2, and the other of which extends in a similar direction at the other side of the machine The two arms 98 are connected by lll1l-IS-99 (Figs. 1 2 and 8) to the mold holderspresently to be described.

As hereinbetore mentiorredflhe mold car- Her 71 is recessed in front. The upper sur:

face of said carrier is circularly grooved. at 100, as indicated by dotted lines in Fig. 8, one end of said groove terminating at one side of the recess and the other terminating at the other side of the recess. This groove 100 is engaged by curved ribs 101 (Fig. 5) of the two mold holders 102, said'inold holders be- (Fig. of a mold or wiper 108, thestructure being such that the two mold members,

i which together constitute themold, can slide rearwardly in the, holder and also laterally,

the latter being due to the relative Width ofthestems otthe plungers 118.

the grooves 106 and ribs 107.. A suitable cover plate 109 secured by bolts 110 to a rear portion of carrier 71 retains the mold members or wipers in position in the holders 102. Inthis construction the mold holders, with the mold members, constitute aws which are opened to receive the'shoc and are closed yieldingly to hold the, shoe and shape the upper to the last.

Yieldingly to hold the mold members or wipers toward each other in the positions shown in Figs. 3, at and 5, plungers 111 bear against the outer walls of the mold members,

said plungers being actuated by springs 112 mounted in casings 113 carried by the holders 102v To limit the inner positions of the two plungers sothat they will not be thrown out of their sockets or casings when the mold members are removed, the outer end of the stem of each plunger is provided with; a stop pin 11 1.

Two flat leaf springs 115 (Fig. 4 and dotted lines Fig. are secured to the under sur faces of the holders 102. The free end of each spring is provided with a pin 116 the upper portion of which passes throughv an opening in a holder 102 and extendsinto a lateral groove 117 formed inthe under face of the mold 108. Thegrooves 117 areconsiderably wider than the diameters of the upper ends of the pins 116 so that while said pins prevent the mold members from being unintentionally ejectedtrom position, they do notinterfere with rearward shifting ofthe molds. If it is desired to remove the mold membersfor any purpose such as the substitution of differently shaped mold/members therefor, the lower milled ends oi the pins 116 are pulled down, the springs 115 yielding sufliciently, to lower the pins outotthe grooves 117. y i

To yieldingly hold the mold members or wipers 108 in the forward position whichis limited by a pin 116, I provide plungers 118 mounted in rear casings 119 of the holders 102, springs120cau'sing the plungers to exert pressure on the rear of the mold men'ibers or wipers. To retain the plungers in their sockets when the mold members are removed, suitable limiting pins 121=are carried by the outer ends of .the stems ofthe said plungers. To adjustably limit the degree or extent of rearward motion of themold members or wipers, in opposition to the springs 120, stop screws 122 (Fig. 8) are mounted in the carrier 71 in alinement, with the rear ends of Suitable provisions are made for heating the mold members and their holders, use

is carried by'eaeh of the holders 102-(Figs.

5 and 6).

. the rockshaft 91 so that, through thearms In operation a shoe having its sole or outsole attached is placed upon the jack pin 24 with the toe portion supported by the rest 87, this being done whilethe jack support 27 is swung out to the position shown in Fig; 1. The toe rest ensures support of the shoe firmly at the proper angle to provide for proper molding oi the counter and upper material adjacent to the heel seat portion of the shoe.

The operator then swings the ack support to the position shown in Fig. 2, the heel end of the shoe passing into the recessed portions of the molding devices, the different'members 01 which yield to accommodate the particular size or width of the rear of the shoe. As hereinbefore explained the mold members 108 are interchangeably mounted. This provides for material variations of sizes. It is to be understood also, of course, that form blocks or dies 62 of different sizes or forms may be interchanged, one for another, for such purposes as conforming to the sizes or styles of the different shoes to be operated upon.

I After the jack support has been swung to the position shown in Fig. 2 the operator, by means of the foot lever 56, connects power to the shaft so that the latter will be given one revolution. The relative timing positions of the cams carried by the shaft 50 are such that first, the toggle members 40, 41 are actuated toward straightened position so as to lift the shoe against the block 62; This 'movement is efiected by means of the cam 49 acting upon the roll 48 of the lever 46 to impart a thrust to the link 44. This at the same'ti'me permits the spring 97 to actuate 98 and the links 99, the mold holders 102 are yieldingly moved forward and toward each other on the guides provided by the curved ribs 101,'so that the mold members 108 are closed and pressed against the rear end of .the shoe. movement of the toggle members 40, 41 and consequent continued lifting of the shoe, the

During vfurther straightening series of cam steps 90 acts upon the roll 89 of lever 88 rapidly to reciprocate rod 82. This,

through the arms 79, 77 of the rockshaitt 78 imparts a succession of up-and-down movements to the mold carrier 71. These movements of the carrier 71, although strictly in Therefore, while the lasted shoe is heldunder molding pressure at its heel seat end, the counter and upper material at the heel end of the shoe are subjected to a repeated series of pressures'during continuance of the molding pressure for the reason'that the mold members, as shown, are shaped to overhang the inwardly curved. portions of the upper and counter adjacentto the heehseat.

The vertical movements ofthe mold members not only cause increasing and diminishing pressure to be applied to the reg on of the upper and counter lying adjacent to the heel-seat, but also cause the mold members to produce a heightwise wiping effect on the upper about the heel end resulting in smoothing out the wrinkles in a manner equal to that effected by, the usual hammering operation when done by an expert workman as hereinbefore referred to. The heating of. the mold by means of heat units 124 inserted in the casings123 aids in'ironing out-the wrinkles and shrinking the leather into conformation with the heel end of the last.

The molding pressure resulting from straightening of the toggle members 40, 41 is not materially different when lusts of different sizes are employed. This is due to the structure including the second toggle device 16 and the spring 19. To explain this, supassuming that the pivot 43 would be in fixed I or unyielding position. Owing, however, to the fact that the base togglepivot 43 is carried by lever 14 the position of which latter is controlled by toggle 16 and spring 19, compensation is obtained for imparting the same amount of pressure to varying height sizes of lasts. For instance, supposing a shoe on a low last is to be operated upon so that there is no occasion for the lever 14 to yield when the toggle'members 40, 41 are straightened, the toggle members 16 are not affected; that is, owing to the low height of a last, no such pressure is applied as would be necessary to overcome the resistance of the nearly straight toggle members 16 and the spring 19. If, however, alast of considerably greater height size is in the shoe to be operated upon, then when the thrust link 44 is actuated the toggle members 40, 41 willstill straighten out without crushing the last, because the pivot 43 ment remains practically constant'irrespec- 'tive of theeXtent ofmovement of lever 14 because the greater the movement that is imparted to lever 14,the greater is the breaking movement of toggle 16Qand the increase in this breaking movement compensates roughly for the increased tension of spring 19. The structure described thus providesa high degree of adaptability, suflicient practicallyto eliminate all danger of damage resulting from excessive pressures due to unusually high lasts or other causes. c

Having described my lnventlon, what I clalm as new anddesire to secure by Letters Patent ot' theUnited States. is

1. A machine ofthe characterdescribed having, in combination, a molding device, means for holding a. shoe and said device clamped together under sustained molding pressure to mold the shoe bottom to the shape of the mold ng device, and meansior subject- Oil the molding device, and means for subjecting the counter and upper material adjacent to the heel-seat oi the shoe to pressure 7 directedinwardlv and downwardly with respectto the heelseat, one of the components,

of said pressure being repeatedly increased. and diminished during continuance of said molding pressure. 7

.3. A machine of the character described having, in combination, a molding device, means for holding a shoe and, stud device clamped together under sustained molding pressure to mold the shoe bottom to the shape of the molding device, and means for sub jecting the counter and upper material atthe heelend of the shoe to a repeated series of pressures during continuan ceof said molding pressure,said pressures being exerted in a direction to iron out wrinkles in the upper material. v

4. A machine of the character described having, incombination, amolding device, means for holding a shoe and said device clamped together under sustained molding pressure to mold the shoe bottom, to the shape of the molding device, and means for subiecting the counter and upper material at the heel end of the shoe to a rapidly repeated series of pressures during continuance of said molding pressure. i

A machineo'l the character described having, in combination, a moldi 1g device, means for holding a shoe and said device clamped together under sustained molding pressure to mold the shoe bottom to the shape oi" the molding device, universally mounted. wipers located to act on the heel end of a shoe while undersaid molding pressure, and means for actuating said wipers.

6. In a machine 0t the character described, a primary toggle constructed and arranged to support a work carrier. and a secondarv toggle having means for yieldingly resisting breaking movement thereof, said secondary toggle being connectedto the primary toggle to yieldingly resist excessive pressure exerted through theprimary toggle.

7. In a machine-oi the character described, lever and two toggles connected to said lever, one of said toggles being constructed and arranged to support a work carrier and the, othertoggle having a spring constructed and arranged to offer a-yielding resistance to movement of said lever.

8. In a. machine ofthe character described, a member movable between work-receiving and Work-presenting positions, a member againstwhich the work is pressed, means for moving said first-named member into workpresenting position comprising a toggle through which said movement is transmitted to said member, a second toggle constructed and arranged to yield upon excessive pressureon said firstaiamed member, and yield ingmeans constructed and arrangednormal- 1y to resist breaking movement of the second toggle, the parts of said second toggle being relatively constructed and arranged to offer decreasing resistance to breaking of that toggle to compensate for the increase in force of said yielding means upon the second toggle.

.9. a. pressure exerting machine, a pair of relatively movable pressing members, a toggle support for one of said members, a

second toggle having a springfor yieldinglv opposing its breaking movement, and connections between said toggle support and said second toggle whereby excessive thrust pressure of the IOI'HIGI' will be t 'ansmitted to the latter. i

V 10. Ina pressure exerting"machine, a pair of relatively movable compressing members, a toggle for actuating one of said members toward the other, a lever connected to the toggleto sustain it in operation, a second toggle also connected to said lever, and a spring for yieldingly opposing breaking movement of the second toggle.

11. In a pressure exerting machine, a pair of relatively movable compressing members, a toggle for actuating one of said members toward the otheiga lever connected to the toggle to sustain it in operation, a second tog' toggle having a work carrying member connected to it.

13. In a pressure exerting machine, a lever,

and two toggles connected to said lever, one of saidtoggles having a spring connected to it to oppose its breaking movement, theiother toggle having a work compressing member.

connected to it, and adjustable means forvari ablv determining the normalangularity of the twomembers of the toggle to which said spring is connected.

14; A machine of the character described having, in combination, a last'supporting' arm, a lever, a toggle connecting said lever and arm,- means for exerting straightening action on said toggle, asecond toggle connected with said lever, and a spring for yieldingly opposing breaking movement of the second toggle, said second toggle and Its spring being constructed and arranged to yieldingly oppose movement of said lever away from normal position.- I

15. A machine or the character described having, in combination, a lever, a toggle having its lower member supported by one end of the lever, a last-supporting"arm connected withlthe upper member of saidtoggle,a second toggle conneeted with the other end of sa d lever, and a spring for y eldmgly oppos ingbreaking' movement of the second toggle. 16. A machine of the character described having, 1n combination, a molding device,

means for holding a shoe and said device clamped together under sustained molding pressure to mold the shoe. bottom to the shape ofthe molding device, a mold carrier, a plurality of mold members shaped to'corre-' sp'ond to the inward curve oi the side of a' last adjacent to the heel-seat, and means for actuatingsaid carrier heightwise of the last to cause the mold to bear repeatedly on the inwardly bent portion of the upper and counter about the heel end of the shoe during con- 17; A machine of the character described having, in comblnatifoinineans for holding a tinuance of said molding pressure.

lasted shoe under molding pressure at its heel seat end, a recessed mold carrier, a pair of mold members mounted to yield laterally and rearwardly in said carrier, and means for actuating said carrier to cause the mold to apply increased pressure repeatedly to the portion of the up er and counter adjacent to the heel seat and to rub vertically on the heel I having, in combination, a vertically movable jack, a co-a'cting die block, a recessed'lnold carrier, means for raising and lowering the carrier, a pair of holders movably mounted in said carrier, molds yieldingly mounted in the holders, and means for yieldingly actuating the mold holders on said carrier. 20. A machine of the character describe having, in combination, a Vertically movable jack a co-acting die block, a recessed mold carrier, means for raising and lowering the carrier, a pair of holders havlng curved guiding connectionswvith the carrier, mold members yielding-1y mounted in the holders, and means for yieldingly actuating the mold holders in said carrler.

21. In a machine. of the class described, in

combination, a support for a shes, a horizontal carrier and'winers sliding therein to be closed about the end of the supported shoe,

' and means to move thecarrier away from the shoe bottom with the wipers in engagement with the upper materials.

In a machine of the class described, in vcombination, a support for a shoe, a carrier and horizontal wipers angularly movable therein arranged to bec'losed about the end of the supported shoe and moved away from the shoe bottomin engagement with the upper materials, and means to supply heat thereto to shape the upper materials by the combined action of heat and rubbing pressure.

23. In amachine of the class described, in combination, a support for a shoe, a carrier and wiper plates slidably andangularly movable therein to engage near the rand crease the upper materials of a shoe on the support,

and means to move saidcarrier awav from the rand crease with thewlper plates mengage ment with and rubbing against the upper materials'. I

24. In a machine of the class described, in combination, a support for a shoe, angularlymovable members automatically to conform to and yieldingly to engage nearthe rand crease the upper materials" 01'' a shoe supported thereby, means to heat said members,

and means to move said members away from the mud crease 1n engagement with the upper materials to shape them by the combined action of heat andrubbing pressure;

25. Ina machine of the class described, in combination, a'su'pport for a shoe, a jaw comprising wiper plates which are yieldingly movable to grip the upper materials about one end of a shoe on thesupport, and mechanism relatively to move the support and said jaw to rub the upper materials progressively away from the shoe bottom toward the top o't the shoe. I

26. In a machine of the class described, in combination, a support for a shoe, a aw comprising a carrier and wiper plates therein which are movable to grip the upper materials about one end of a shoe on the support, heating means on the carrier to heat the Wiper plates, and mechanism relatively to move the shoe support and said jaw to rub the upper materials progressively away from the shoe 'bottomtoward the top of the shoe.

2 7. Ina machine of the class described, in

"combination, a support, recessed carriers mounted on the support, yieldingly mounted shoe-engag1ng members shd'able in the carv plates back and forth in the direction ofthe riers to conform to the shape of a shoe, and

electric heating units in the recesses of the engage the upper materials about one end of a shoe supported thereby, and means repeatedly to rub said plates back and forth in the direction of the height of the shoe in engagement with the upper materials in both directions.

E29. Ina machine of the class described, in combination, a support for a shoe, plates to engage the upper=inaterials about one end of a shoe'supported thereby, means to heat the plates, and means repeatedly to rub said height of the shoe in engagement with the upper materials in both directions.

30. In a machine of the class desc 'ibed, in combination, normally-separated members to engage opposite sides of a shoe, asupport to present a shoe thereto, means to close said members about the end of the shoe, and means to move the closed members in engagement with the-upper materials of the shoe and back and forth in the direction of the height of the shoe.

31. In amachine ofthe class described, in combination, means to mold the heel-seat of a shoe, members to engage the counter portion of a shoe operated on thereby, and means to rub said members back and forth in constant engagement with theupper materials ofthe shoe. i

32. In a machine of the class described, in combination, means to mold the heel-seat of a shoe, members to engage the counter portion of a shoe operated on thereby, means to heat said members, and means to rub said members back and forth in constant engagement with the upper materials of: the shoe In a machine of the class described, in combination, a molding device, means to hold a shoe with its heel seat clamped constantly thereagainst under molding pressure to re.

ceive itsshape therefrom, heated means and means for actuating the said heated means repeatedly to rub and smooth the uppermate rials of the clamped shoe.

85. In a machine of the class described,'in

combination, means to shape the bottom of a shoe, heated means, and means to actuate said heated means heightwise of the shoe to-rub and shape the upper materials of the shoe operated on thereby.

36, In a machine of the class described, in

combination, means toshape the bottom of a shoe, a device to shape the upper materials of a shoe operated on thereby, and cyclic mechanism to bring, said means into operation and to move saiddevice into engagement with the shoe, and thereafter to rub it back and forth in constantengagement with the upper materials of the shoe.

87. In a machine of the class described, combination, means to jack a shoe,.members to be closed about the end of a shoe jacked thereon, yielding means to close said mem bers on the shoe, and a stop normally restraining operation of said yieldingmeans and moved to an inoperative position by operation of the jacking means. I

38. In amachine of the class described, in combination, a one-piece die to form on the heel seat of a shoe bottom a convexity to receive the cavity of a wood heel, and means to shape the upper materials of the shoe adjacent to the heel seat during. the operation of the die. v 1

39. Ina machine of the class describechin combination, means to form on the heel seat of a shoe bottom a convexity to receive the cavity of a wood heel, and members movable back and forth in engagement with the upper materials of the shoe adjacent to the heel seat to rub them against an enclosed last. 4

4:0. In a machine of the class described, in combination, means to form on the heel seat of a shoe bottom a convexity to receive'thc cavity of a wood heel, and heated members movable back and forthin engagement with t-heupper materials of the shoe adjacent to theheel seat to iron them against an enclosed last. I i

ell. In a machine of the class described, in combination, a concave mold to form a con vex seat on a shoe bottom to receive a wood heel, a support to force a shoe thereagainst to mold its heel seat, and means to rub the upper materials against anenclosed last to shape them adjacent to the heel seat.

42. A machine of the character described;

having, in combination, a support for a lasted shoe, a heel-seat die, pressure applying mechanism operative upon one oi said members to hold the heel-seat of the shoe clamped under molding pressure, jaws arranged to engage about the heel end of the shoe, and mechanism for closing the jaws to apply substantial. pressure'to the heel end oi the shoe being molded and for opening thejaws to facilitate removal of the molded shoe.

43. A machine of the character described having, in combination, a support for a lasted shoe, aheel-scat die,normally open -\'\"S't1.l

shoe, and. interconnected mechanism for closing the jaws upon the shoe to apply substanQ tial pressure thereto and "for relatively moving the support and die to hold the heel-seat ranged to engage about the heel end of the port, a pair of normally open jaws adapted to engage around the heel end oi the .shoe,

and mechanism including a'spring for closing the jaws yieldingly when pressure is produced by said operating n echanism.

45. In a machine for operating on the heel end of a shoe, a shoe support, a pair of jaws constructed and arranged to engage around the heel end of the shoe and for movement heightwise of the shoe, means for moving the.

jaws heightwise of theshoe, and mechanism for closing the jaws and holding them closed, said mechanism being unaffected by the heightwise position of the jaws.

46. A machine of thecharacter described having a support for a shoe, a heel-seat die, the die and support being relatively movable perpendicularly to the heel-seat, mechanism for effecting such relative movement to mold the heel-seat, a shoe holder adapted to grasp the shoe adjacent to the heel-seat, and connections between said pressuremechanism and the shoe holder for opening and closing the holder as an incident to the operation of the pressure mechanism. c

47. A machine of the character described having a support for a shoe, a heel-seat die, the die and support being relatively movable perpendicularly to the heel-seat, mechanism 7 for effecting such relative movement to mold the heel-seat, a shoe holder adapted to grasp the shoe adjacent to the heel-seat, and connections including a spring by which as an incident to the operation of said operating mechanism the holder is caused to close yieldingly against the shoe with substantial pres:

sure. 1

48. In amachine of the character described, a last supporting member arranged to hold a last bottom up, a rigid heel seat die formed to apply localized pressurecontined to the heel seat of a shoe. on said last to compress and shape the heel seat of the shoe between the last and die for the receptionof a wood heel, a primary pressure exerting mechanism arranged to operate onone of said members to apply a light preliminary pressure to the work as the work is positloned, and a seconda heel seat die shaped to mold the heel seat of a shoe on said last to correspond to the cup of a Wood heehanda pair of devices ior effecting relative movement of the last and die,

said devices being constructed and arranged for successiveoperations, one to effect yielding preliminary pressure between the last and die and the other to augment the prellminary pressure. v

shape and hold said counter m me? -50. In a machine of the class described, in combination, a support for a shoe, jaws movable to' grip the upper material of the shoe at one end of a shoe on the support, and mechanism arranged to cause relative movement of the shoe support and the jaws to rub the upper material progressivelyaway from the shoe bottom toward the top of the shoe.

, 51. A machine for operating upon shoes havin in combination, a support for a last,

. a recessed end embracing mold shaped to conform to thecounter portion of the upper of a shoeelectric heating means located inthe recess of the mold for heating the mold, and

means for causing relative movement of the last support and the mold to cause the mold to conform the counter portion of the upper of ashoe carried by said support to the last.

52. A, machine for operating upon shoes having, in combination, a support for. a last,

a recessed end embracing mold arrangedfor engagement with the counter portion of the upper of a shoe upon the last carried by the support, means in the recess of said mold for heating the mold, and means for causing relative movement of the last support and the mold to cause the mold to operate upon the counter portion of the upper of the shoe to portion to the last. v i I 53. A machine for operating upon shoes having a mold comprising a pair of members shaped to conform to the counter portion of a shoe, said members being mounted for relative movement to position saidmembers in accordance With the sizeof the shoe to be operated upon, an electric heating unit carried by each ofsaid members, a work support ar ranged to carry a shoe to be operated upon, and means for causing relative movement of the mold members and a shoe upon the Work support to cause the mold members to shape the counter port-ion of the upper of the shoe.

54:. A machine for operating upon shoes having a mold comprising a pair of members shaped to conform to the counter portion of a shoe, aholder for said members arranged to permit relative movement of the mold members to position said members in accordance With the size of the shoeflto be operated upon,

an electric he'atingun'it carried by each of said members, a work, support arranged to carry a shoe to be operated upomand means for causlng relative movement of the mold members and a shoe upon the work support to cause the.

mold members to shape the counter portion of I the shoe against accidental displacement rela- 'tively to the die, and power-operated means toward the die so that the die and support for effecting further relative movement of the may be properly located with respectto each 1 shoe support and die to efiect molding of the other and held in such relation, and power heel-seat by the die. means for operating the toggle to force the 5 56. In a heel-seat forming machine, the shoe against the die. a

combination of a heel-seat die, a last support, In testimony whereof I have signed my a toggle for lifting the last support, means name to this specification.

under manual control for moving the support ERIC A. HOLMGREN.

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