US1217456A - Forming-in machine. - Google Patents

Description

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FvORMING-IN MACHINE. APPLICATION FILED MAR. 5, 1913.

Patented Feb. 27, 1917.

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ALBERT E. JOHNSON, 0F BEVERLY, MSSACHSETTS, ASSIGNOR 'lOUNTED SHOE :MACHINERY COMPANY, 01 PATERSONLNEW JERSEY, A CORPORATION OF NEW JERSEY.

FORMINGr-IN lAC-IINE.

Specification of Letters Patent. l Patqgngd Feb., 27, 191?.

Application filed March 5, 1913. Serial No. 752,146.

To all whom t may concern:

Be it known thatl, ALenn'r E. JOHNSON, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, vhave invented certain new and useful improvements in Forming-ln Machines; and I' do hereby declare'the following to be a full, clear, and exact-description of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to machines for operating on soles provided with a marginal lip or rib and more particularly to such machines for applying the reinforcing fabric by preliminarily forming-in, or setting, the fabric in the angle between the lip and sole face at the inner side of the lip.

rlhe inventionwill be described as used for forming-in vthe reinforcing fabric on what are known commercially asEconomy7 insoles, although it should be understood that the invention is equally useful in making Gem insoles, or any other type of sole to be reinforced wherein the reinforcing fabric is to be secured to the inner side of a marginal lip or rib.

Heretofore in making Economy insoles the reinforcing fabric,which yis of a suitable quality of canvas cr duck, has been applied to the insole by a machine built in accordance with that patented in United States Letters l Patent No. 979,836 dated ecembor 27, 1910, issued to United Shoe Machinery Company on an application of Andrew Eppler. It is highly important that an absolute contact be made between the leather of the insole and the reinforcing fabric, especially at the base of the lip on the inside, because, if the fabric is not tight at this place, in the making room of the shoe inanufactory, the needle of the welter will pick up the canvas instead of piercing it, and tear it off of the sole, resulting in a crippled shoe. The

r machine of the patent .referred to performs exccllntavork when' operating' on canvas coated with a rubber cement just Previous to applying to the insole as was the common practice for many years. Theuse of rubber cement has now been substantially wholly superseded bv the use 'of one or another form of prepared canvas. Prepared canvas comprises a strip of duck having a special standardized coating on one side,

lthis' most important place.

rThis defect in the machine for applying reinforcing fabric, when operating on the prepared canvas, has led to the necessity of passing the reinforced insole through an insole perfectingv machine, variously known also as a lip hardener7 and a rib tightener, which applies pressure for a second time at the base of the lip.

The present inventor has discovered that if the reinforcing. fabric is first pressed tightly into the vertex of the angle at the inner side ofthe lip,gall makes lof prepared canvas can then be secured to the face of the lip by the usual, or any other suitable,y reinforcing fabric applying'machine, without loosening the canvas so formed-in. As a result reinforced sole is obtained having absolute Contact between the canvas and lip and a perfecting operation is thus'made unnecessary. Furthermore, the canvas forming-.in operation produces a better reinforced sole than can be produced by the use of a perfecting machine, because with the forming-in'machine the canvas is secured to the sole at the most important place, viz: the vertex of the angle at the inside of the lip while in a soft and tacky condition, while with'the perfecting machine the canvas has had anV opportunity to dry before being operated upon and even when the sole is thus perfected some parts of the canvas fail to adhere properly and there remain loose porL tions of canvas which eventually result in a Y crippled shoe.

The object of the present invention is to produce an improved machine for operating Aon soles adapted to preliminarily form-in tion comprises the featuresof construction and combinations 0f parts hereinafter described and then set forth in the appended claims.

rEhe features of the invention will be readily understood from an inspection of the accompanying drawings and the following detailed description of the mechanism illustrated thereby.

1n the accompanying drawings illustrating the best form of the invention for operating on lipped insoles at present known to the inventor7 Figure 1 is a front elevation of the machine.

Fig. 2 is a front elevation of the operating tools illustrating their action upon an insole.

Fig. 3 is an end elevation of the formingin and insole feeding tools.

Fig. 4 is a plan of the tools shown in Fig. 27 and Fig. 5 is a detail of the forming-in tool.

In the illustrated embodiment of the invention the device or tool for operating on the lipped insole to preliminarily form-in the reinforcing fabric in the vertex of the angle at the inside of the rib comprises a roll 1 suitably secured to the end a horizontal, rotary shaft 2 journalcd in bearings formed in an arr 3 pivoted at et on the machine head. The' roll 1 is provided on its larger base with teeth 5, and is so arranged that these teeth grip the fabric on the face of the insole but they are preferably cut to extend in a` direction opposite to the direction of rotation of the roll 1 (Fig. 5). 1f the teeth Were ont to extend in the same direction as the rotation of the roll 1 the teeth Would operate to excessively stretch the reinforcing fabric across the face of the insole Without exerting sufficient Ypull upon the vmarginal portion of the fabric to draw the fabric from this direction down into the inside angle at the base of the rib as those skilled in the art will recognize as desirable. By cutting the teeth 5 to extend' in the op posite direction to the rotation of the roll the action is such as to str-etch the fabric across the face of the sole to the extent desired While permitting the roll to pull the marginal portion of the reinforcing fabric down into the inside angle at the base of the rib and properly form it into the vertex of that angle. The roll 1 is spring pressed in a direction tending to force the roll yieldingly against the base of the rib by means of a coiled spring` 6, which isinterposed between the top of the arm 3 and the bottom of a chamber 7 and is adjustably secured in place by a. rod 8 threaded through a stationary bridge 9 on the machinerhead.

The shaft 2 is provided with a gear 10 Ywhich meshes With a. gear 11 on a parallel horizontal shaft 12 Which is journaled Vin fixed bearings formed on the machine head and driven from a suitablesource of power through a. belt pulley 13. r1`he shaft 2 is supported in its bearings so that it may slide longitudinally therein under the pressure of the Work. To adjustably limit its extent of sliding movement the .shaft carries a movable collar 14 arranged to abut against the rear shaft bearing on the arm 3.

The lipped insole is supported and positioned for the operation of the forming-in roll 1 by a roll 15 arranged to engage the outer face of the rib and a pressure roll 16 arranged to engage the unchanneled face of the insole. rllhe roll 15 also acts as a feed roll and to this end is provided with a frusto-conical toothed face 17 arranged to engage the feather of the. insole. r1`he roll 15 is suitably secured to one end of the shaft 12. is the roll 1 is smaller than the roll 15 the gear 10 on the shaft 2 through which it is driven is smaller than the driving gear 11 on the shaft 12 the proportion being such that the rolls 1 and 15 are driven at the same peripheral speed.

While operating upon the sole the pres sure roll 16, in conjunction with the rolls 1 and 15, acts to offset the feather or marginal edge of the sole. Ait the same time the lip is turned out so that the angle bctween the inner face of the lip and the surface of the sole will be enlarged While the reinforcing fabric is being pressed into the angle. This Will insure that suflicient inaterial is used in reinforcing the sole, so that Vwhen the sole is attached to the last, the fabric Will not be pulled out of the angle.

YThe sole positioning or pressure roll 16 is rotatably mounted upon a vertical stud 18 W iich is adj ustably secured to the upper end of an arm 19 pivotally mounted at its lower end on a rod 20 carried by a bracket 21 formed on the machine head. To hold the roll 16 firmly pressed against the unchane neled face of the sole the arm 19 is pivoted to one end of a link 22 the other end of which is connected through a tension device to the machine head. This tension device comprises a disk 23 secured to a concentric pin 24- Which is rotatably mounted upon the machine head. Coiled around the pin 24 and having one end attached to the link and the other end to the disk 23 is a spring` The tension of this spring may be arlj usted by rotating the disk 23 which is then held in adjusted position by a nut 2G on the pin 2e. The inner position of the roll 1G under the infiuence of the spring 25 is limited byV an adjustable stud 27 carried by the arm 19 and arranged to engage a fixed part of the machine head. Integrally forined with the arm 19 isa second arm 28. rihe arm 28 is provided at its upper end With a yoke 29 which embracesa block 30 rotatably mounted on a pin 31 carried by an arm projecting from a rock shaft 33 journaled on the machine head. A second arm 341 projecting from the rock shaft 33 is provided at its free end with a hook 35 which supports the upper end of a treadle rod 36. `Manipulation of this treadle rod by the operative in the usual manner, through the connections described, withdraws the roll 16 from the unchanneled face of the insole. In order to simultaneously elevate the roll 1 with the withdrawal of the roll 16, to permit the insertion of the lipped insole into and its removal from the machine, the arm 3 carries a depending foot 37 which normally rests upon a third arm 38 projecting from the rock shaft 33. With this construction on manipulating the treadle the arm 3 is forced upwardly at the same time that the arm 19 is forced outwardly.

In order to limit the surface area of the feather engaged by the teeth on the face 17 of the feed roll 15, to prevent the teeth from pulling the edge of the insole between the rolls 1 and 15, there is provided a guard 39 (Figs. 3 and 4) arranged on the advance side of the feed wheel which is curved to partially cover the teeth on the face 17 .Y The guard 39 is formed on the upright leg of a bar 40, the horizontal leg of which is adjustably secured by a slot and screw connection 4l (Fig. 4) to the horizontal arm of a bracket 42 secured to the machine head.

The feather Yof the insole is held pressed against the guard 39 by the presser foot 43 formed on the upper end of resilient arm 44 which is secured at its lower end to a lug 45 on the arm 19. These two tools constitute two presser feet arranged to engage the opposite sides of the sole in advance of the operating point. Vith this construction the rib on the insole as it is fed through the machine, is engaged at three points, 1S. e., by the roll 1, the roll 15 and the guard 39. The guard 39 thus acts as a. guide to swing the insole about the point of operation of the roll 1 as its point of operation is transferred around the sole. The tendency of the roll 15 to ride .over the rib at the curved portions of the insole is thus overcome.

As the insole swings about the point of operation of the roll 1 relative movement between the rotating roll and insole is limited to a swinging movement when the roll reaches the toe and the reverse curves at the shank. if the roll l` were provided with teeth cut to extend in the same direction as therotation of the roll 1 the surplus reinn forcing fabric at the toe and shank would be pulled by the teeth into a fold in the rear of the roll 1 as the roll swings on the insole without forward movement. If the roll 1 were provided with a smooth periphery the surplus reinforcing fabric at the toe and shank would be pushed into a fold in advance of the roll when the roll reached the toe and shank. By cutting the teeth 5 to extend in the opposite direction to the rotation of the roll 1 the teeth exert suiiicient pull on the surplus reinforcing fabric at the toe and shank to prevent the fabric being pushed in a fold in advance of the roll, which pull is insufficient, however, to pull the surplus reinforcing fabric at the toe and shank into a fold in the rear of the roll.

In the interval between the approximate positioning of the fabric on the lipped'insole and the presentation of such material and the insole to the machine and looseV marginal portion of the fabric has opportunity to fall and is frequently pressed by stacking into Contact with the inside face and top of the rib and adhere thereto more or less firmly. ln order to :free the false adhesion and hold the marginal portion of the fabric clear of the rib so that the forming-in tool may draw the marginal portion of the fabric down into the inside angle at the base of the rib, the roll 15 ois provided with a peripheral flange 46 which extends beneath the marginal portion of the reinforcing fabric (Fig. 2). This tool clears the fabric from a false adhesion to the rib and otherwise holds it clear to permit the proper operation of the forming-in tool. if the clearer 46 was stationary the loose reinforcing fabric would stick thereto and consequently the feed of the fabric would be retarded so that the portion of the fabric to be operated upon would be dragged backward into a wrinkled and plaited condition beneath the formingin tool. By the provision of a'rotary clearer the usual use of oil tov permit the free passage of the sticky fabric thereover is obviated. To assist in overcoming the false adhesion of ythe fabric to the lip the clearer 46 is provided with peripheral fabric engaging teeth 47 which are so cut that they do not bite deeply into the fabric for if they did, owing to the greater peripheral speed at which the clearer travels over that of the roll 15, such a construction would cause the loose reinforcing fabric, forming a part of the stretch of fabric being operated on, to be pulled ahead of the operating point resulting in the forcing` of the fabric forward into a plait or fold beneath the forming-in tool. The teeth are so constructed, however,

as to grip the fabric to a slight extent, permitting a slip, so that the loose reinforcing fabric is fed along at the saine speed as the insole is fed. This construction insures that the reinforcing fabric on the clearer is in a i reinforcing fabric upon the insoles, they bend the insoles along their medial lines so the lipped Vface of the insoles become con'- cavedlycurved. `When so curved the insole Will assume the position, when inserted into the machine of the drawings, shown inthe dotted lines of Fig. 2. lf the fabric is applied to a sole While thus curved or curled, When the insole is bent Varound the convex bottom of a last and thus curved in the other direction, Vthe reinforcing fabric willA be pulled out of the angles at the base of the rib. l/Vhen this happens the fabric is torn in the stitching operation resulting in a crippled shoe. rlf'hose skilled in the art will recognize that to' obtain the best results the insole should be reinforced While its lipped face is convexedly curved. ln order -to straighten out the sole and take out the curl in the Wrong direction, so that its lipped face will be more orless convexedly curved at the time it passes through the machine, the machine is provided with a fiat triangular plate or finger il?) bridging the shaft 2 and arranged with its apex, which is pointed to dig slightly into the reinforcing fabric, projecting beyond the forming-in tool and over the roll 16. l/Vith this construction the objectionable curl of the insole, shown by the dotted lines Fig. l, is removed, the insole being bent in the opposite direction approximately into the shape which the insole will assume When applied to a last at the time the fabric is formed-in. rfhe finger i9 also by Vdigging into the reinforcing fabric, prevents the forming-in roll l from stealing canvas from the opposite side of the insole.

The tools foroperating upon the sole are preferably heated, as heat aids in effecting a proper application of the fabric. To this end the machine head i's provided'ivith a steam chamber 50 connected by means of an intake 5l and an outlet to a suitable steam circulating system. y

rlhose skilled in the art will understand that the forming-in of the reinforcing fabric described herein is only the first step in.

completely applying the fabric to a sole blank. After leaving this machine the sole is taken to another machine kwherein the complete attachment of the fabric to the lip or rib is effected and it is also preferably trimmed, this second machine producing a finished reinforced sole. lt Will also be understood that the present machine is equally effective in forming-in canvas .vhich is prepared for application toY soles by stripping along either straight or serpentine lines or by dinking out approximately to the shape of an insole. Y

YThose skilled in the art will recognize from the foregoing description that Ysome features of the invention are of advantage in a machine of the type described, Whether or not reinforcing fabric is being applied to the sole, and, so far as such features of the invention are concerned, the invention is not limited to an operation upon reinforced or partially reinforced soles. Some features of the invention also are of advantage in any machine for operating on a reinforced sole Whether it perform the forming-in, fabric-trimming, rib-tightening or any other operation, and theinvention is, therefore, not limited to the use of these features in performing the particular operation decribed herein.

lWhile it is preferred to employ the specific construction and arrangement of the parts shown and described, it will be underA stood that this construction' and arrangement is not essential, nor is the conjoint use of all the features of the invention essential except so far as specied in the appended claims, and it may be varied or modified Without departing from the broader' features of the invention.

lWhat is claimed as new, is

l. A machine for forming-in reinforcing fabric at the inside angle of a sole, having a marginal lip or rib, to which the fabric has been roughly applied, having, in combinatioin'means for supporting and feeding the sole, a formingin tool Vthe inside of the lip having an operating portion adapted to apply pressure on the fabric at the vertex of Vthe angle tie inside of the lip, and means for continuously engaging and advancing the free marginal portion of the fabric with the sole, substantially as described.

A. machine for forming-in reinforcing falnic at the inside angle Vof a sole, having a. marginal lip or rib, to which the fabric has been roughly applied, having, in combination, means for supporting and feeding the sole, a formingin tool at the inside of vthe lip having an operating portion adapted to apply pressure on the fabric at the vertex of the'angle at the inside of Athe lip, and means for holding thefabric away from the inner side ofthe lip whereby the for1ning-in tool is enabled to draw the free marginal portion of the fabric into the angle, substantially as described. Y

3. A machine for forming-in reinforcing` fabric at the inside angle ofV a sole, having a marginal lip or rib, to which the fabric has been roughly applied, having, in combination, means for supporting and feeding the sole, and a rotary forming-in tool at the inside of the lip, having an operating portio-n provided With teeth extending in an opposite direction to the Vrotation of the tool, constructed and arranged to apply pressure on the fabric at the vertex of the angle at the inside of the lip, substantially as described. Y

e. A machinefor forming-in reinforcing fabric at the inside angleof a sole, having a marginal lip or rib, to which the fabric has been roughly applied, having, in combination, a rotary forming-in tool at the inside of the lip, having an operating portion provided ivith teeth extending in an opposite direction to the rotation of the tool, constructed and arranged to apply pressure on the fabricat the vertex of the angle at the inside of the lip, means for relatively actuating the tool and sole to transfer the point of operation of the tool around the sole, and means for automatically swinging the sole about the point of operation of the tool as its point of operation is transferred around the sole, substantially as described.

5. A machine for operating upon partially reinforced soles having a marginal lip or rib, having, in combination, a reinforcing fabric pressing tool for operating at the inside of the lip, a toothed feed roll for operating upon the feather of the sole, and a guard for the teeth of the feed roll constructed and arranged to limit the surface area of the 'feather engaged by the feed roll, substantially as described.

A machine for operating upon partiaily reinforced soles having a marginal lip or rib, having, in combination, a reinforcing fabric pressing tool for operating at the inside of the lip, a toothed feed roll for operating upon the feather of the sole, a guard for the teeth of the feed roll con structed and arranged to limit the surface area of the feather engaged by the feed roll, and means for holding the guard and feather in engagement, substantially as described.

7. A machine for operating upon reinforced soles having a marginal lip or rib, having, in combination, a reinforcing fabric applying tool constructed and arranged to apply pressure on the fabric at the inside of the lip, and means for preventing the tool from stealing canvas from the opposite side of the sole, substantially as described.

8. A machine for operating upon reinforced soles having a marginal lip or rib,-

having, in combination, means for supporting and feeding a sole, a reinforcing fabric applying tool constructed and arranged to apply pressure on the fabric at the inside of the lip, and holding means located adjacent the operating point of said tool to engage the lipped face of the sole inside the lip Aand cooperate with the supporting means to convex the portion of the solepvvithin the lip, and prevent the fabricv applying tool from drawing fabric from .material lying inside the point of engagement of the holding means with the fabric, substantially as described.

Si. A machine for operating upon reim forced soles having a marginal lip or rib, having, in combination, a reinforcing fabric applying tool constructed and arranged to apply pressure on the fabric at the inside of the lip, and a stationary finger arranged to project beyond the tool to engage and conveX the lipped face of the sole adjacent the operating point of said tool, substantially as described.

10. A machine for operating on partially reinforced soles having a marginal lip or.

rib, having, in combination, a tool for setting the reinforcing fabric to the sole, a feed Wheel for engaging and feeding the sole, and a feed Wheel for engaging and feeding the free marginal portion of the fabric, substantially as described.

11. A machine for operating on par-A tially reinforced soles having a marginal lip or rib, having, in combination, a tool for setting the reinforcing fabric to the Sole, and means for feeding the work constructed and arranged to engage and advance both the sole and the free marginal portion of he fabric, substantially as described.

12. A machine for operating upon partially reinforced soles having a marginal lip or rib, having, in combination, a reinforcing fabric pressing tool for operating at the inside of the lip, and separate feeding devices for engaging both the sole and the free marginal portion of the fabric. substantially as described.

13. A machine for operating upon partially reinforced soles having a marginal lip or rib, having, in combination, a canvas pressing tool for operating at the inside of the lip, and separate means having differenial speeds for feeding the sole and thefree margin of the canvas, the canvas feeding means having a lost motion engagement With the canvas to .permit the sole and canvas being fed at the same speed, substantially as described.

111. A machine for operating upon partially reinforced soles having a marginal lip or rib, having, in combination, a reinforcing fabric pressing tool for operating at the inside Of the lip, and rotary means for maintaining the loose fabric adjacent the operating point 0f the tool normal to the tool, substantially as described.

15. A machine for operating on partially reinforced soles having a marginal lip or rib, having, in combination, tools for supporting and feeding a sole and for continuously operating on successive stretches of the reinforcing fabric at the marginal portion of the sole, and means for supporting and feeding the part of the loose fabric Which forms a continuation of the stretch of the fabric being operated upon, to hold it in the direct line of the stretch and prevent folds from being formed in the fabric as it is pressed into the vertex of the angle,

Y substantially as described.

16. In a machine for operating on partially reinforced soles having a marginal lip or rib, a rotary tool for operating on the inside of the lip having a circumferential edge for engaging the fabric on the lip of the sole at the vertex of the angle; and a roughened sole engaging face constructed and arranged to draw a loose end of reinforcing fabric down into the vertex of the angle and prevent the surplus fabric from being drawn into a fold when operating at the toe and shank portions of the sole, substantially as described.

17. A machine for operating on soles, having, in combination, a tool for operating at the inside of the lip, a feed roll for operating at the outside of the lip, means for supporting` the sole with its lip between said Vtool and roll, a guard curved about said feed roll in advance of said roll in the line of feed to engage one side of the sole, and a cooperating presser to engage the other side of the sole, substantially as described.

18. A machine for operating on soles, having a marginal lip or rib, having, in combination7 tools at opposite sides of the li i for su )vortine' and feedine` the sole and' l C) 2D for operating on its marginal portion, and an additional tool for engaging the face of the sole inside the marginal portionv for convexing the body portion of the sole adjacent the operating point of said tools, substantially as described.

19. i machine for operating upon rein-- forced soles, having a marginal lip or rib, having, in combination, means for holding a sole in position to be operated upon, a tool for operating on the fabric at the lip, and a rotary toolto engage the 'marginal portion of the fabric and clear it from a false adhee sion or contact with the lip to permit a proper operation of said tool, substantially as described.

20. A machine for operating upon reinforced soles, having a marginal lip or rib, having, in combination, means for holding a sole in position to be operated upon, a tool for operating on the fabricat the lip, and a rotary lip clearing Wheel beneath the fabric having its periphery adjacent the top of the lip to engage the marginal portion of the fabric and'clear it from a false adhesion or contact with the lip to permit a proper operation of said tool, substantially as described.

ALBERT E. JOHNSON. `lv'itnesses.

WARREN' OGDEN, ELsrn Panes.

Copies of this patent may be obtained for ve Vcents each, by addressing the Commissioner of Patents.

Y Washington, D. C.

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