US2394997A - Manufacture of footwear - Google Patents

Description

1946- .1. SQKAMBORIAN MANUFACTURE OF FOOTWEAR Filed April 30, 1943' 4 Sheets-Sheet 1 fnwfizzkr Mariam Jaaa ,5. 9%

Feb. 19, 1946. J" 5. KAMBORIAN 7 2,394,997

MANUFACTURE OF FOOTWEAR Feb. 19, 1946. J. 5. KAMBORIAN 9 MANUFACTURE OF FOOTWEAR Filed April 50, 1942- 4 Sheets-Sheet s Feb. 19, 1946; J, 5. KAMVBORIAN 2,394,997

MANUFACTURE OF FOOTWEAR Filed April so, 1945' 4 Sheets-sheaf. 4

mania)" Maj maria/m Patented Feb. 19, 1946 UNITED STATES FPATENT OFFICE 2394,99? MANUFACTURE OF FOOTWEAR Jacob S. Kamborian, West Newton, Mass. Application April, 30, 1943, Serial No. 485,131

' 19 Claims. ,(01. 12-1) This invention pertains to the manufacture of foot wear and relates more especially to a novel apparatus for use in making shoes of the sliplasted or so-called platform type. Shoes of this kind, are characterized by having a very thick, usually soft and resilient middle sole interposed between an insole and/or socklining and the outer sole, The marginal edge of this middle sole isconcealed and protected by a deep flexible strip or wrapper whose upper edge is united to the insole and upper by aninseam, and whose lower margin is interposed between and cemented to the middle and outer soles, In some styles of shoe the thick soft middle sole is confined to the forepart of the shoe. In other styles the middle sole extends from toe to heel, and in some instances comprises a shank and heel portion which may be of rigid material, for example wood.

To insure a neat and trim appearance, in particular to provide a sharp, clearly defined angle where the wrapper embraces the upper and lower edges, respectively, of the middle sole, andto provide a close, firm union of the outer and middle soles, it is necessary to subject the strip or wrapper (usually of thin, flexible material such as soft upper leather, textile fabric or the like) to-a stretching operation whereby it is drawn snugly about the marginal edge of the middle sole and laid down over the bottom of the latter, to which it is permanently united, as'b-y means of adhesive. This operation has heretofore customarily been done .by hand with the assistance of lasting pinchers, and is particularly difficult of i accomplishment at the heel and ball portions of the shoe. The middle sole is yielding and resilient, and since hand-stretching involves seizure and stretching of the welt material at a succession of separated points about the margin of the shoe, it is very difficult by such means to obtain sharp unbroken line where the wrapper strip bends around the edges of the middle sole; to obtain a taut, smooth unwrinkled condition of the wrapper, particularly at the junction of the shank and foreparts, or to prevent lateral shift of the middle sole and/or the heel member during this hand-stretching operation.

In some shoes of this type, particularly in openheel shoes where the middle sole terminates approximately at the plane of the heel breast, it is customary, as a preliminary step, to bind the edge of the middle sole at its heel portion witha relaof the middle sole, bending it in over the edge of the middle sole and laying its marginal portion down against the middle sole it is essential to adjust the rear end of the middle sole relatively to the upper so that both rear ends of the'wide forepart wrapper will properly lap the forward ends of the heel binding ribbon-an operation which may be likened to the lasting operation known as spindling. No adequate means for holding the parts during this adjustment has been available heretofore; The term in-lasting as here used is believed proper in view of the analogy between the operations performed on the wrapper material and those performed upon the margin of the upper proper in the manufacture of other types of shoe.

Among the objects of the invention are to provide adequate means for supporting a last so as to facilitate proper relative adjustment of the length (including shank and heel portions), firm- 1y against the shoe bottom (in fact actually to compress it so as temporarily to decrease its thickness), and for so holding the parts duringinlasting of the wrapper; to provide means operative simultaneously to exert an upward and inward lasting pull upon the wrapper at opposite sides, respectively, of the shoe, for example at the tively narrow ribbon or wrapper, separate from that which extends along the shank, forepart and toe. Prior to in-lasting the forepart wrapper, that is to say, drawing it snugly about the edge junction of the shank and forepart; and to provide means operative to pull the wrapper up and to last it in over the heel end of the middle sole, particularly when the middle sole includes a rigid heel block or wedge.

Other and further objects and advantages of the invention will be shownand described in the following more detailed description and byreference to the accompanying drawingswherein:

Fig. 1 is a fragmentary side elevation, partly in vertical section, illustrating one form of mechanism useful in the practice of the process of the present invention;

Fig. 2 is a fragmentary rear elevation of the mechanism of Fig. 1;

Fig. 3 is a perspective view of a set of grippers constituting an element of the mechanism of Figs. 1 and 2;

Fig. 4 is a side elevation of a forepart pressureapplying device designed to be used in substitution for the presser device of the mechanism of Figs. 1 and 2;

Fig. 4 is a fragmentarysection of the parts shown in Fig. 4 indicating the roller as engaged in the cam slot;

Fig. 5 is a bottom view of a middle sole such as may be employed in the manufacture of the platform type shoe;

Fig. 5 is a section to larger scale on the line Fl -45 of Fig. 5;

Fig. 6 is a side elevation of a completed shoe embodying a middle sole such as shown in Fig. 5;

Fig. '7 is a fragmentary transverse section through alast having a shoe upper and insole assembled thereon and united by an inseam which also attaches the strip or wrapper;

Fig. 7 is a view similar to Fig. 7 but showing the parts after assembly of the middle sole therewith and illustrating a step in the operation of inlasting the wrapper;

Fig. 8 is a bottom view of a middle sole of modified construction;

Fig. 5) is a section on the line 55-9 of Fig. 8;

Fig.110 is a. section on theline Iii-l9 of Fig. 9;

Fig. 11 is a fragmentary side elevation partly in vertical section, illustrating apparatus particularly designed for inlasting. the, wrapper about the edges of a middle sole of the type shown in Figs. 8 and 9; and

Fig. 12 is a fragmentary plan view of the mech anism of Fig. 11.

Referring to the drawings, the numeral 1 designates a base, which may be a metal casting or the like, designed to be mounted upon a bench or other appropriate support. This base has a guideway (Figs. 1 and 2), extending from its rear end towards its forward end, which receives a slide 2. carrying a last supporting block 3 proend of this rod I l entering a screw-threaded bore in toe supporting member IZ. By properly turningthe rods 8 and H, the last support and toe support may be relatively adjusted in order to adapt the apparatus to receive shoes of Various styles and sizes.

The base i is provided with a pair of laterally spaced upwardly directed guide bosses l3 and M' provided with guide-passages (which extend down through the base) for the reception of vertically sliding parallel rods 5 and I5- which are rigidly connected at their upper ends by a crossbar [1. These rods are also connected at their lower ends by a second crossbar If! to which is attached a link [9 whose lower end is pivotally secured to atreadle lever 23 (Fig. 1) pivotally supported at 2:1- and having a foot. treadl'e, not shown, at its forward end by means of which the operator may depress the: treadle. lever and thus move the. link is and the rods l5 and I 6 downwardly; A tension spring, 22., attached to the base I and to the treadle lever 2a]. tends to. lift the treadle lever and thus to move the bar l8 and the rods 15 and it upwardly.

Extending between the rods i5. and; 5 at a point between the base land the crossbar I1 is. avertically movable crosshead 23 having tubular bosses 714i and 2.5 at its opposite-ends, respectively,

which receive the rods [5 and it with a sliding fit. Collars 26 and 26 fixed to the rods l5 and i6, respectively, limit the downward movement of the crosshead 23. Between the bosses 24 and 25 and the crossbar i1, open coiled springs 21 and 28 are interposed, said springs embracing the upper portions of the rods l5 and I6 and tending to hold the bosses 25 and 25 in contact with the collars 26 and 26 respectively.

Secured to the central part of. the crosshead 23 is a stem member 39 (Fig. l) to. which is attached a presser plate 20 of a size and contour such as substantially to cover the entire forepart portion of the shoe bottom. The crosshead 23 also carries. a. rearwardly directed rigid bracket arm 3| having bearings at its rear end for a rock shaft 32'. To this rock shaft is rigidly secured a tubular arm or sleeve 33 which receives a sliding stem carrying a roller 35. A pin 34 projecting from the stem into a slot in the sleeve 33 prevents the stem from turning relatively to the part 33, while a spring 33* within thepart, 33, tends to force the stem downwardly.

The rock shaft 32 has a second rigid arm 35 ca rying a cam follower roll 31 at its upper end which engages a cam slot-38 in a bracket 39 pro- J'ecting down from the crossbar H.

A manually actuable handle 49 has a yokepor tion M (Fig. 2) which is pivotally mounted on the ends of the shaft 32. so that the yoke M and the handle :86 may be swung independently of the shaft. The handle 40 is provided. with an attaching element 42, to which are secured the upper ends of flexible transmission members, 43., for instance; chains, lengths of flexible wire or the like. These members 43 pass. over guide rolls 4 disposed at opposite sides of the, arm 3!, and have securedtotheir lower ends gripper devices 45, such, for example, as illustrated in Fig. 3. As

. illustrated, the gripper devices comprises a pairof curved jaws it and c1 preferably having their opposed surfaces knurled or roughened, the jaw t? having a tail portion 48 and the jaw is having the tail portion 49, the jaws being pivotally united: by a pin 59:. The: end. of the flexible connector 43 is secured. to the end, of the tail member 49 and passes freely through, an opening in the end, of. the tail member 118. A spring 5!, interposed between the tail members, tends to close the jaws.

In. themodified construction illustrated in Figs, ll; and 12,v the base I and the rods l5 and i6, together with their guiding and actuating means, may be. in general similar to the correspondingly numbered parts of. Figs. land 2. Likewise: the last: support 3 may be similar to that previouslydescribed, and a, toe; support like that of Fig. I may be providedif desired.

In this arrangement a crossbar 53 is rigidly secured to the. upper ends of the rods l5 and I5, and to this. crossbar is. secured a heel and shank pressing member as. here'shown as of angular shape having front andv rear portions designed concomitantly to. engage. the; heel and shank portion of a middle. sole. and having a. connecting element: at its angle. whereby it. is adjustably so and has a bearing. opening at its lower end for the shaft 58, and at its upper end is adlustably securedto a piston rod Bl connected at its'rear end to a piston (not shown) arranged to slide in a cylinder 62 mounted upon the motor support. This cylinder 62 may be supplied with pressure fluid, for example, compressed air, the admission of Which'is controlled by a valve 64'which may be operated manually by a handle or by suitable connections (not shown) to the treadle which operates the bars l and IS. The coil prings 63 tend to rock the motor support including the parts 51 about the pivots 55 so as to force the rollers 59 downwardly.

In the practice of the invention, and referring first to the mechanism of Figs, 1 and 2, a middle sole M such as that illustrated in Figs. 5, 5 and 6 is first provided, This middle sole comprises a forepart portion F which is usually of some soft resilient material such as felt and which is of substantial thickness, for instance from t; to 1% of an inch thick. A shank piece P is secured to this forepart portion F, the shank piece extending to the heel and constituting the heel end of the middle sole, and as illustrated in Fig. 5, is provided with a binding 13 extending around its heel end from the point 66 to the point 61, these points being slightly forward of the vertical plane of the breast surface 68 of the heel H of the completed shoe. The binding B may be of any suitable material but ordinarily need not be as wide as the wrapper W which conceals the edge of the forepart portion of the middlesole. The upper surface of the middle sole is preferably coated with adhesive, as indicated in Fig. 5 and this adhesive C also coats the edge of the middle sole.

The shoe upper U, shown as open at its heel end (Fig. 6), is assembled with and united to the socklining and/or insole S (Fig. '7) by an inseam I which also secures the lower margin of the strip or wrapper W to the insole and upper. After the parts have thus been united, the last 5 is inserted and the shoe is now read to be mounted in the apparatus of Figs. 1 and 2 or equivalent means useful for supporting the shoe during the inlasting of the wrapper. It may here be noted that in this type of shoe the part S is commonly a thin, flexible socklining rather than a true insole, but so far as the present invention is concerned, it is to be understood that the part S, whether referred to as an finsole or socklining, may be a socklining, insole, or combination of socklining and insole according to the specific shoe construction which may be preferred.

When a middle sole M (adhesively coated upon both surfaces and on its edges), such as shown in Fig. 5 is used, the first step in the operation, after mounting the last upon the support is to perform what may be referred to as a spindling operation, that is to say, a relative orientation of the middle sole and upper so as to insure the overlapping of both forwardends of the binding B by the rear end portions of the wrapper W. Preparatory to such adjustment, and after laying the middle sole upon the insole, the operator places his foot upon the treadle and part way depresses it, thus moving the crossbar 11 downwardly and causing the presser foot 30 to press lightly on the forepart of the middle sole. While thus held, the rear ends of the wrapper W may be grasped and the upper swung to right or left relatively to the last and middle sole until the ends of the binding are properly located relatively to the ends of the wrapper W. Then by further depression of the treadle, the presser foot 30 is forced further down, preferably so as to compress the middle soleandac'tually to "decrease its thickness. The pressure which mayxthus be applied is determined by the stiffness of the springs 21 and 28. During this downward movement of the cross-bar H, the roller 31, by engagement with the cam slot in the bracket 39, is caused to swing downwardly and forwardly, thus swinging "the arm 33 downwardly and rearwardly and causing the roller 35 to travel down alongthe shank portion of the middle sole and eventually come to rest upon the heel end ofthe middle sole. This movement of the roller 35 very firmly irons the shank portion of the middle sole down against the insole; and since the contacting surfaces of the middle sole and socklining have been adhesively coated, the action of the roller 35 and the presser foot 30 is such as very firmly to unite these parts.

The operator now opens the grippers 45 and engages them with the margin of the wrapper W at opposite sides of the shoe, preferably at points adjacent to the junction of the forepart with the shank portion. These are the parts of, the wrapper which are most diflicult to inlast since at this point there is an abrupt reverse curvature of the edge of the insole. I-Iavingv caused the grippers to engage the wrapper at these points, the operator then seizes the handle 40, swinging it downwardly and rearwardly, thus drawing the flexible connections 43 upwardly and applying upward stress to the grippers. The greater the stress the more firmly the grippers grasp the material so that there is no danger that the material will slip out of the gripping jaws. The wrapper material is first turned upwardly from its original position, as shown in Fig. '7, until it extends substantially vertically upward, and since the flexible members 43 diverge downwardly from the connecting element 42, this upward stress has a component tending to move the grippers inwardly toward ach other. This very eifectively pulls the wrapper material into firm contact with the vertical edges of the compressed middle sole, and since these edges are adhesively coated, the wrapper is securely attached thereto in its tensioned condition, it being recalled that at this time the middle sole is under heavy compression by the presser foot 29.

If desired, the grippers 45 may now be detached and moved to other points along the Wrapper and again actuated to stress the wrapper upwardly and inwardly at these new points. However, after having stressed the wrapper upwardly at points near the forward end of the shank, it is usually sufficient to remove the shoe from the machine and complete the inlasting of the wrapper, preferably by a method of inlasting such as described in the patent to Kamborian, No. 2,254,224, dated September 2, 1941, as applied to the lasting of shoe uppers.

As illustrated in Fig. 4, a slight'modification of the apparatus is shown wherein the pressure foot 39 corresponding to the presser foot 30, above described and carried by the stem 29, has the pivoted rear extension 52 provided with an upwardly directed central flange having a curved cam slot 53 designed to receive the roller 35 or its equivalent, the roller pressing the extension 52 against the middle sole as the roller moves downwardly and rearwardly. Such an arrangement may be desirable under certain conditions, for example when rearward movement of the roll in direct contact with the middle sole is undesirable, although the spring-pressed roller of Fig. 1 is usually sufficient for the purpose,

In Figs. 9 and 10 there is illustrated a middle sole M wherein the cushioning member Ff extends from front to rear, and wherein the middle sole comprises the thick rigid heel member H integral with the rigid shank piece P, this heel member and shank piece usually being of wood and being secured to the part F by means of tacks T. Both surfaces and the edges of the entire middle sole are provided with a coating of cement C. This middle sole M is mounted upon the insole of the lasted shoe and properly spindled or adjusted as above described, the shoe being mounted, for example, in apparatus such as shown in Figs. 11 and 12. The rods 15 and I6 are now actuated by the operator to draw the crossbar 53 downwardly, thus bringing the heel and shank presser member 54 into forceable contact with the heel and shank portion of the middle sole, at the same time bringing the roller 59 into contact with the forepart of the middle sole. By manipulation of the valve 64, the piston is caused to move back and forth in the cylinder 62, thuscausing the roller 59 to pass back and forth over the forepart of the middle sole and applying ironing pressure thereto, the pressure thus applied by the roller and by the part 54 causing the middle sole firmly to adhere to the insole. In this type of shoe the most difficult point in lasting the wrapper is at the heel where the wrapper must be drawn snugly up about the rigid and deep heel member H. Accordingly, after securing the middle sole in place, as above described, the operator attaches the gripper members 45 to the heel portion of the wrapper, preferably at each side, respectively, of the rear end seam and then by manipulating the actuating handle pulls the grippers upwardly, thus causing the wrapper to be turned upwardly and to be drawn snugly up and inwardly against the edge surfaces of the heel H. If desired, the grippers may be disengaged and moved forwardly to repeat this operation, particularly at points adjacent to the forward end of the shank piece, but, if preferred, after causing the wrapper to be adhered firmly to the edge of the heel member,

the remainder of the wrapper may be inlasted in accordance with a method such as that described in the above-mentioned Kamborian patent.

While th methods herein described are conveniently carried out by the use of apparatus such as specifically disclosed and referred to, it is obvious that they may be carried out by other means than that shown, and itis further obvious that the apparatus may be modified as respects proportions, materials and specific arrangement of parts and by the substitution of equivalents without departing from the spirit of the invention.

I claim:

1. Apparatus for use in inlasting the wrapper of a platform type shoe, said apparatus comprising means for supporting a last, bottom up, having mounted thereon an assembled and united socklining, upper and wrapper, means for exerting a positive downward force operative to press a middle sole, havingits edge and upper surface adhesively coated, firmly against the socklining, and means operative concomitantly, at a plurality of points, to apply upward and inward stress to the wrapper, thereby firmly to bring it into contact with the edge of the middle sole and bond it adhesively thereto.

2. Apparatus for use in inlasting the wrapper of a platform type shoe, said apparatus comprising means for supporting a last having mounted thereon an assembled and united socklining, up-

per and wrapper, means operative to force a yieldable middle sole with compressive pressure against the socklining, thereby adhesively to unite the middle and socklining, and gripper means operative to apply stress upwardly and inwardly concomitantly at spaced points in the margin of the wrapper, thereby to draw the wrapper firmly about the edge of the middle sole and bond it adhesively thereto.

3. Apparatus for use in inlasting the wrapper of a platform type shoe, said apparatus comprising means for supporting a last having mounted thereon an assembled and united socklining, upper and wrapper, means operative to apply pressure to the middle sole sufficient temporarily to decrease the thickness of the latter, and means operative, during the maintenance of said pressure, snugly to draw a portion of the wrapper upwardly and into contact with the edge of the middle sole and bond it adhesively thereto.

4. Apparatus for use in inlasting the wrapper of a platform type shoe having an adhesively coated middle sole, said apparatus comprising means for supporting a last having mounted thereon an assembled and united socklining, upper and wrapper, means operative to apply static pressure to one portion of the middle sole and means operative to apply constantly shifting pressure to the other portions only of the middle sole, thereby adhesively to unite the middle sole and socklining.

5. Apparatus for use in inlasting the wrapper of a platform type shoe having an adhesively coated middle sole, said apparatus comprising means for supporting a last having mounted thereon an assembled and united socklining, upper and wrapper, a presser foot operative to apply static pressure to the forepart portion of the middle sole, and means operative to apply pressure to the shank and heel portions beginning at the forward end of the shank and progressing rearwardly, thereby adhesively to unite the middle sole and socklining.

6. Apparatus for use in inlasting the wrapper of a platform type shoe including an adhesively coated middle sole, said apparatus comprising means for supporting a last having mounted thereon an assembled and united socklining, upper and wrapper, pressure-applying meansoperative to apply static pressure to the heel and shank portions of the middle sole, and means for applying pressure to the forepart beginning at a selected point and progressing forwardly or rearwardly from said point.

7. Apparatus of the class described comprising means for supporting a last having mounted thereon an assembled and united socklining, upper and wrapper, a crossbar arranged above the support, means for moving the crossbar downwardly, a presser foot carrier movable relatively to the crossbar, spring means tending to separate the crossbar and presser foot carrier, at presser foot mounted on the carrier, the presser foot being designed and arranged to register with the forepart of the middle sole, and a part actuated by the crossbar, as the latter descends toward the support, for pressing the shank. portion of the middle sole firmly against the socklining.

8. Apparatus of the class described comprising means for supporting a last having mounted thereon an assembled and united socklining, upper and wrapper, a crossbar arranged above the support, means for moving the crossbar downwardly, a presser foot carrier movable relatively to the crossbar, spring means tending to separate the crossbar and presser foot carrier, a presser foot mounted on the carrier, the presser foot being designed and arranged to register with the forepart of the middle sole, a rigid bracket forming 'a part of the presser foot carrier, a rock shaft supported by the bracket, a shank pressing element carried by the rock shaft, and means responsive to relative movement of the presser foot carrier and crossbar for rocking said arm and thereby actuating the shank pressing element 9. Apparatusof the class described comprising means for supporting a last having mounted thereon an assembled and united socklining, upper and wrapper, a crossbar arranged above the support, means for moving the crossbar downwardly, a presser foot carrier movable relatively to the crossbar, spring means tending to separate the crossbar and presser foot carrier, 2. presser foot mounted on the carrier, the presser foot being designed and arranged to register with the forepart of the middle sole, a rigid bracket projecting from the presser foot carrier, a rock shaft journaled in said bracket, an arm fixed to the rock shaft having a shank roller mounted thereon, and a second arm fixed to the rock shaft, said latter arm having a part which engages with a cam element on the crossbar thereby to move the rock shaft in response to relative movement of the crossbar and presser foot carrier.

10. Apparatus of the class described comprising means for supporting a last having mounted thereon an assembled and united socklining, upper and wrapper, a crossbar arranged above the support, pressure-applying means carried by the crossbar and comprising parts engageable with the heel and shank portions, respectively, of the middle sole, a motor device pivotedto rock on the crossbar about a transverse axis, a forepart roller arranged to rock bodily with the motor and to be moved backwards and forwards longitudinally of the shoe by the motor, and means resiliently urging the roller downwardly toward the support.

11. Apparatus for use in inlasting the wrapper of a platform type shoe, said apparatus comprising means for supporting a last having mounted thereon an assembled and united socklining, upper and wrapper, a crossbar arranged above the support, pressure-applying means comprising a part having angularly disposed arms designed for engagement, respectively, with the heel and shank portions of the middle sole, a pressure cylinder pivoted to rock on the crossbar about a transverse axis, said cylinder containing a piston providedwith a piston rod, a forepart roller mounted for bodily front-to-rear movement upon guide means arranged to rock with the cylinder, means connecting the piston rod and the forepart roller whereby movement of the piston rod moves the roller bodily back and forth, and means operative to govern admission and release of pressure fluid-to and from the cylinder.

12. Apparatus for use in inlasting the wrapper of a platform type shoe, said apparatus comprising adjustable means for supporting a last having mounted thereon an assembled and united socklining, open-heeled upper and wrapper, the wrapper terminating at opposite sides of the shoe substantially at the plane of the heel breast and the margin of the heel portion of the middle sole having a binding, means for inlasting said wrapper and means operative to hold the forepart portion of the middle sole in contact with the socklinin while the middle and inner soles are relatively orientatedto cause the ends of the inlaste'd wrapper to lap the ends of the binding at opposite sides, respectively, of the shoe.

13. Apparatus foruse in inlasting the wrapper of-a platformtype shoe, said apparatus compristhe crossbar, a rock arm supported by the carrier, a shank-pressing roller carried by the rock arm, and cam means carried by the crossbar for moving the rock arm, thereby to cause the roller to move rearwardly and downwardly along the shank of the middle sole in response to relative movement'of the carrierand crossbar.

14. Apparatus for use in inlasting the wrapper of a'pl'atform type shoe, said apparatus comprisin a support for a last having mounted thereon an assembled and united socklining, upper and wrapper, a presser foot for pressing the middle sole against the socklining, a vertically movable part movable toward and from the support, a carrier movable relatively to said part, spring means tending to separate the carrier and said vertically movable part, the presser foot being mounted on the carrier, the movement of the presser foot toward the support being limited by its engagement with the middle sole, a rock arm supported by the carrier, a shank-ironing roll supported by the rock arm, and cam means on said vertically movable part operative to move the rock arm, thereby to cause the roller to move lengthwise of the shank in response to relative movement of said part and carrier after the presser foot has been stopped by engagement with the middle sole.

15. Apparatus for use in inlasting the wrapper of a platform type shoe, said apparatus comprising a support for a last having mounted thereon an assembled and united socklining, upper and wrapper, a presser foot for pressing the middle sole against the socklining, a carrier movable toward and from thesupport, yielding'means for moving the carrier toward the support, the presser foo't being mounted on the carrier, the movement of the presser foot toward the support being limited by its engagement with the middle sole of the shoe, the presser foot having a rearward extension over the middle sole, such extension being provided with a curved cam slot, a roller, and means for moving the roller bodily over said extension to press it against the middle sole, the roller having a shaft engaging said curved slot, thereby to guide the roller as it moves over the extension.

16. Apparatus for use in making shoes of the type in which the edge of a resilient middle sole is embraced and concealed by a flexible wrapper,

is embraced and concealed by a flexible strip'of material, said apparatus comprising means ?for supporting :a :last on which a lasted upper, socklining and middle sole are mounted, a vertically movable presser :foot operative to engage the upper surface of the middle sole, grippers engageable with the free margin of the strip, means to supporting a last upon which a lasted upper,

sock lining and middle sole are mounted, the side edge of said middle sole having an adhesive coating thereon, means for applying compressive stress to the middle sole thereby temporarily to decrease its thickness, and :means for stretching the strip and holding it in contact with the edge of the middle sole'while the stress applying means is actuated whereby the strip is bonded to the edge of the middle sole.

19. Apparatus for use in making shoes of the type in which the edge of a resilient middle sole is embraced and concealed by a flexible strip of material, said apparatus comprising means for 'supportinga last upon which a lasted upper, soc-k lining and middle sole are mounted, the sideedge of said middle sole having an adhesive coating thereon, a movable presser foot operative to rest upon the middle sole, means for causing said presser foot to. apply compressive stress upon the middle Sole and to temporarily decrease its thickness and means for stretching said strip past the edge of the middle sole and into c'ontact therewith while-said presser foot is applying compressive pressure to the middle sole whereby the strip is bonded to the edge of the middle sole.

JACOB S. KAMBORIAN.

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