US1902824A - Heel-seat fitting machine - Google Patents

Description

March 28; 1933. BESSOM 1,902,824

HEEL SEAT FITTING MACHINE Filed May 29, 1951 9 Sheets-Sheet 1 Fig.1

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Qua a En mg g VENTURL gout/l- MM Hwbmowm March 28, 1933. E. A. BEssoM v HEEL SEAT FITTING MACHINE Filed May 29, 1931 Q'She tS-Sheet 9 Patented Mar. 28, 1933 UNITED STATES PLATE EARL A. BESSOM, or MARBLEH AD, MASSACHUSETTS, AssIGNon T UNITE-D snoE,

PATEBSON, NEW JERSEY, acoRronATIoN or NEW MACHINERY CORPORATION, OF JERSEY I a Application filed May 29,

This invention relates to machines for use in the manufacture of shoes and is illustrated herein as embodiediin a machine for fitting the heel portions of the soles of shoes for the reception of heels.

During the manufacture of shoes towhich Wood heels, for example, areto be attached, it is customary to reduce the rear portion of the sole of each shoe for receiving the attaching face of a heel and also to form apair of shoulders, one at each end of the heel breast line, extending transversely of the sole and against which the breast of theheel abuts when the heel is correctly positioned upon the shoe. This operation is commonly known as heelseat fitting. V

In fitting the heel seats of shoes, it is important that the reduced heel-seat portion of the sole, which is often referred to as a tongue, shall substantially fill up the cavity of the attaching face of the heel in order to' serve as a solid support upon which the heel may be attached. Care must be taken, however, toremove from the sole an amount of material suificient to permit the rim of the attaching face of the heel to be pressed snugly against the overlastedcounter portion of the shoe in order to cause a merging of the 7 lines of the counterportion of the shoe and the side'of the heel and thereby to produce a shoe which is neat in appearance where the heel joins the shoe upper. It is also desirable that the 'heel-breast-receiving shoulders against which the breast of the heel abuts shallbe formedto a shape complemental to the portion of the breast surface of the heel against which they are to engage and shall also be properly positioned upon the sole in order that when the heel is attached to'the shoe in its desired position the heel-breastreceiving shoulders will be in abutting rela-', tion with the vbreast of theheel.

It is an object of this invention to provide an improved machine for quickly and accurately fitting the heel seats of shoes of any and all types. Accordingly, the illustrated machine, which in its general organization similar in many respects to the machine disclosed in United States Letters Patent No. 1,837,399, granted December 22,

NT I

HEEL-SEAT FITTING MACHINE- 1931. Serial m5. 540,990.

' of welt, McKay,-turn and compo shoes and even'of some stitchdowns. a 7

In order accurately to fit the heel-seat portion of ashoe for receiving awood heel, the sole shouldbe properly positioned inthe machine, both widthwise and lengthwise, relatively to the trimming instrumentalities of V the machine and should beheld in such position during the trimming operation. The shoe tobe operated on by the machine disclosed in" said United States Letters Patent No; 1,837,399, as in the illustrated machine, is positioned lengthwise by a back gage. A shoe the heel-seat portion of the sole of which is fitted by the use of the machine'disclosed in that application, however, is positioned widthwise by crease plates, constr'ucted and arranged to enterthe rand crease of the shoe at opposite sides of the shoe, engaging the sole-attaching stitches which in welt," V

McKay and turn shoes extend rearwardly of the-breast line, even if for only a short distance, and are located'at opposite sides of and at substantially equal distances. from the median plane of the sole. .1

The crease plates of the machine disclosed in said United States Letters Patent No. 1.837399 and in an application for United States Letters Patent Serial No. 170,881, filed February 25, 1927, in the name of Harrie A. Ballard, in addition to centering the soles of the shoes in the machines are designed to control the path of movement of a rotating cutter, which is moved in'a U-shaped path peripherally of the heel seat of the shoe and thereby trims the rear part of the sole to providea tongue orreduced heel-seat portion of the sole having a heel-contacting surface substantially complemental to the attaching face of theheel. This cutter is hereinafter spoken of as a back cutter to distinguish it from the cutter which makes the heelbreast-receiving shoulders.

In operating upon compo shoes there are no lines of stitches which may be utilized as above described for centering the sole of the shoe and the sole-attaching cement is not ordinarily extended to the rear of the-heel gage other parts of cured to the shoe upper by stitching.

breast line. In order, therefore, to center such shoes or to center shoes of any type if the heel-seat fitting is performed before the permanent sole attachment and while the soles are held only by the sole laying fastenings, as is sometimes done in the manufacture of McKay shoes, the shoes must be positioned relatively to the median plane of the machine by centralizing members Which entheshoe. In order that the mechanism for centralizing the shoe will be effective it should be locatedv away from the cutters which the paths of movement of perform the fitting operation, shouldrigidly hold the shoe in position while being operated upon, and should be constructed and arranged to position the soles of both right and left shoes so that the median or central plane of the soles ,of the shoes will be positioned in the median or central plane of the machine and will therefore be symmetrical with respect to the paths ofmovement of the cutters of the machine.

In a machine in which the back cutter is constructed and arrangedto be moved peripherally'of the heel seat toform a tongue or a reduced heel-seat portion of the sole which will accurately fit the attaching face of a heel to be applied to the shoe and in which the cutter is guided in a path .controlled the setting of crease plates as above described, it is desirable not only accurately to centralizethe shoe but also to position the crease plates in the same location relatively to the shoe that they would assume when centering a sole 'of a shoe'se- Such a heel-seat fitting machine will operate effectively on both cemented and sewed sole work as well as on shoes the soles of which have been laid but not yet stitched.

With the above object in view and in order to cooperate with the back gage in positioning thesoles of shoes in the machine, the illustrated machine,'in accordance with a fea ture of the invention, is provided with a movable gage which is constructed and arranged to engage the opposite sides of the rear part of the counter portion of the shoe in combination with centralizing or clamping members mounted for equal and opposite movement toward and away from the -median plane of the machine and shaped and arranged to engage opposite sides of the shoe as the" gage is moved rearwardly under pressure applied through the shoe, the gage cooperating withv the centralizing or clamping members to positionthe shoe widthwise in the machine. 7

The centralizing and clamping members which, as illustrated, are mounted for equal and opposite movement and engageopposite sides of the shoe upper, are designed properly to position the soles of both right and left shoes; In accordance with another fea sewed sole,

ture of the invention, these members comprise shoe-engaging partsmounted for pivotal movement and constructed and arranged to tilt upon contact with the shoe upper, the degree of tilting depending upon the inclination of the shoe upper to the median plane of the shoe at the point of contact. This tilting of the shoe-engaging parts, which may be geared together and have their shoecontacting portions normally positioned at equal and opposite distances from the median plane of the machine when these portions are out of contact with the shoe upper, causes one of the parts to shorten more than the other because of the difference in the curvature of the two sides of the shoe at the points of contact, with the effect that a point equidistant from the points of contact with the shoe upper will move to one side of the median plane of the machine when positioning a right shoe and will move an equal distance to the opposite side of the median plane of the shoe when positioning a left shoe. The median planes of the soles of both right and left shoes positioned by the above-mentioned members, however, will lie substantially in the median plane of the machine, and will, therefore, be symmetrical with respect to the paths of movement of the cutters. 1

In order, when operating on shoes the soles of which are not attached .by stitching, to locate the crease plates in the same position that they. would occupy were theycentralizing a corresponding shoe having a and inaccorda-nce with another feature of the invention, the arms of the centralizing and clamping members of the illustrated machine carry stops which, when the shoe has the median plane of its sole positioned in the median plane of the machine, are engaged by the crease plates which are moved into operative position against the stops and, by appropriate mechanism, lock the centralizing or clamping members against movement. I

In addition to varying the shape of the horseshoe-shaped path of the back cutter which moves peripherally of the heel seat portion of the sole to trim. off the surplus material therebyforming a rearwardly ex tending tongue portion, the crease plates, in accordance with another featureof the invention, are designed automatically tovary the path of a cutter mounted for-movement 1 from the sole rearwardly of the shoulder, in v order that the width of the base of the tongue will correspond in width to the forward portion of the tongue formed by the back cutter.

In fitting the heel seats of shoes the'crease plates of the heel-seat fittlng machlne should enter between the sole and the over-lasted 'portion of the shoe upper at least as far forward as the heel-breast line of the sole in order properly to support the sole and to protect the shoe upper. These plates, however, when operating on compo shoes, the soles of which are attached merely by an adhesive, should not enter the shoe forwardly of that line or they may break the adhesive bond by which the sole is attached to the shoe. In order therefore, that when operating on shoes of different sizesthe forward edges of the crease plates will terminate substantially at the breast line of the shoe, and in accordance with a further feature of this invention, the illustrated machine is provided with crease plate members which, together; with the shoulderformi-ng cutter, are mounted for adjustment lengthwise of the-positioned shoe to a position determined by a'heel gage such as described in the above-mentioned application for United States Letters Patent Serial No. 170,881 and in said United Patent No. 1,837,399. r

Shoulders for receiving the breasts of Louis or Cuban heels may be cuton shoes of'a given size by the use of the illustrated machine, without adjusting the position of the shoe lengthwise in the machine. To this end the shoulder-forming cutter is a guide bar which is positioned by the heel gageabove mentioned and which, in combination with other mechanism carried by the bar, guides the shoulder-forming cutter in varying paths, dependent upon the style and size of the shoe,

States Letters across the sole of the shoe; In order to change from one style of vheel to another and in accordance with another feature of the invention, the mechanism of the illustrated machine for guiding the shoulder-forming cutter across the sole comprises a latch slide which may be set in one position for causing the cutter-guiding mechanism to move the cutter heightwise of the sole as it moves trans: versely across the sole for'forming shoulders shaped and positioned for engaging the projecting lip of the breast of a Louis heel and which may be set in another position to cause the cutter-guiding mechanism to move the cutter lengthwise of the heel further to the rear, as well as heightwise of the sole, upon movement transversely across the sole thereby forming shoulders curved in the plane of the sole and shaped to engage the breast portion of a Cuban heel. 7

As above stated, the guide bar upon which the shoulder-forming cutter is moved across the sole is not adjusted lengthwise of the sole of the shoe when the operator changes from Cuban to Louis heel work and in order that the crease plates shall extend to but not forwardly'of the breast line of the heel when operating on both Cuban and Louis heel work and in accordance with a further feature of the invention, the crease plates may be adjusted relatively to the guide bar and the relatively to the cutter as the and Cuban Workrespectively.

In orderto prevent the sole supported by the crease plates from being picked up by the cutter during the shoulder-forming op eration and in accordance with still'another feature of the invention, the, illustrated ma.- chine is provided with a holddownsupported for movement with and aheadof the rotary:

shoulder-forming cutter and pivotally mounted for movement about the axis of rotation of the cutter, the arrangement being such that the holddown progressively presses-ya portion of thesole ahead of the cutter toward 1 a the last or the jack by which the shoe is car-.

ried by reason of the frictional drag between the sole and the cutter. The illustrated h-olddown is" constructed andiarranged to ride up the tread face of the movedtransversely across the sole toward the median plane of the sole and also. to rise sole increases in thickness. It has been found to be unnecessary to hold down the sole-after thecutter sole as the cutter is reaches a position at which it starts to rise heightwise of the sole and in order therefore to retain-the holddown inits raised position I during the'remainder of the shoulder-forming operation, thereby lessening the power consumed, the illustrated machine is provided with a pawl and ratchet arrangement for retaining the holddown in raised position until the cutter arrives back at its starting point when the holddown is released: and is urged toward the crease plates. I a

a In order to guide the rotary backcutter in'a horeshoe-shaped path to reduce the-heel seat portion of the sole, the shaft, upon which the cutter is mounted, does not-move ago withina guidewayformed in templet plates of themachine as disclosed in the United States Letters Patent No. 1,661,391, granted March 6, 1928 on an application filed in the name of WilliamC. Stewart, andhas also dis closed in the above-mentioned United States Letters Patent No. 1,837,399, but in accord ance with another feature of this invention, the illustrated machine is provided with a circular plate having cam rolls constructed and arranged to travel in a horseshoe-shaped guideway formed in the templets which, as above eXplained,-'are mounted for adjustment toward and away from each other with the crease plates, and a rotary cutter the shaft of which passes through the-plate and is constrained for movementaround the rear portion of the sole asthe cam rolls carried by a the plate are moved around the guideway? By guiding the shaft of the rotary back cut circular plate, as

ter indirectly through the distinguished from guiding shaft by slots cut through templet plates, the machine can be made'to reduce-the heel seat portion of thesole of a shoe to an 'exthe rotary cutter tremely narrow tongue, if desired, without necessitating such a design of any of the parts of the machine, particularly the parts which guide the cutter in. the horseshoeshaped path, as might impairtheir strength.

In order to permit the back cutter which moves in the horseshoe-shaped path to move farther forward of the machine when operating'upon Louis work than when operating on Cuban work and in accordancewith a further feature of the invention, the guide bar uponwhich the shoulder-forming cutters are mounted carries a gage which is pivotally mounted for adjustment into either of two positions and has two gaging faces located at unequal'distances from the point about which the gage is pivoted, the arrangement being such that either of the gaging faces which limits the movement of the'back cutter forwardly ofthe machine may be disposed toward the rear portion of the machine according to whether it is desired to fit the heel-seat portion of the shoe for receiving a Louis or a Cuban heel. I

To provide for adjusting the rotary back cutter axially of its shaft relatively to the crease plates and in accordance with another feature of the invention, a sleeve or bushing mounted upon the shaft and secured against axial movement relatively to the shaft has a spur gear aiiixed thereto and shaped and arranged to mesh with a worm carried by a member which supports the bushing and is in threaded relation therewith, the arrangement being such that the operator may rotate the worm and thereby rotate the bushing relatively toflthe member for adjusting the rotary cutter toward and away from the crease plates. V

These and other features of the invention will now be described with reference to the accompanying drawings, in which I Figs. 1 and 2 are front and plan views, respectively, of the illustrated heel seat fitting machine, certain parts of which have been broken away more clearly to show the construction of the machine;

Fig. 3 isa vertical sectional view of the machine taken along line III III of Fig. 1;

Fig.4 is a horizontal sectional view of the machine taken along line IVIV of Fig. 3;

Fig. 5 is an enlarged plan view of a portion of the top of the machine, parts having been broken away to illustrate portions of mechanismfor guiding a rotary back cutter which is designed to reduce the rear portion of a sole peripherally of the sole;

Fig. 6 is a side view of heel gaging apparatus as viewed while looking in the direction indicated by arrows VI-VI of Fig. 2;

Fig. 7 is a vertical sectional view of the rear portion of the machine as viewed while looking in the direction of arrows VIIVII of Fig.2,"

' Fig. 8 is an enlarged plan view, vpartly of the centralizing and clamping members and the shoe when the shoe has been centralized in the machine; y

Fig. 11 is a perspective view of the rear portion of an inverted shoe as it comes to the machine for having its heel seat fitted;

Fig. 12 is a perspective view illustrating the shoe shown in Fig. 11 after the rear portion of the sole of that shoe'has been trimmed around its peripheral portion by the back cutter to reduce or to tongue the rear portion I of the sole V V Fig. 13 is a perspective view corresponding to Fig. 12 but showing the shoe after heelbreast-receiving shoulders have been formed upon the shoe to complete the heel-seat fitting operation;

Fig. 14; is a plan View of mechanism for controlling the movement of the rotary cutter which forms heel-breast-receiving shoulders upon the sole of the positioned shoe,

parts of the casing in this view having been broken away in order clearly to illustrate the interior constructlon of this mechanism;

Fig. 15 is a perspective view of the mecha nism illustrated in Fig. .14 as seen from above looking in the direction indicated by the arrow XV of Fig. 14; V i

Fig. 16 is a sectional view of the mechanism for forming the heel-b-reast-receiving shoulders, this view having been taken along the line XVI-XVI of Fig. 14;

Fig. 17 is a rear view of the cutter and v portions of the mechanism for forming the heel-breast-receiving shoulders, as seen while looking in the direction of arrows XVII- XVII of Fig. 16 and also illustrates the relative position of a shoe, the cutter, a sole-sup porting crease plate, and .a sole holddown as the cutter starts to trim the sole upon moves ment transversely across the same;

Fig. 18 is a view similar to that shown in Fig. 17 but showing the relative positions of the parts'illustrated in that figure after the cutter has trimmed the full thickness of the Fig. 19 is an end view of the mechanism illustrated in Fig. 17 while looking along the axis about which the cutter is rotated, the cutter having been removed to illustrate clearly the construction of the sole holddown" which travels in front of the cutter as the cutter moves across the sole; and

sole for a short distance and is about to rise "as it moves transversely of the sole;

work and also illustrating the outlines of cor Fig. 20 is a diagrammatic view illustrating.

the projections of the paths of movement of the rotary shoulder-formingcutter upon the sole while operating upon Cuban and Louis responding Cuban and Louis heels in relation'to said projections.

The illustrated heel-seat fitting machine is of the same general type as the machine disclosed in the above-mentioned United States Letters Patent Ito-1,661,391, and more closely. resembles the machine disclosed in the above-.

mentioned United States Letters Patent 1,837,399. The illustrated machine, like each of the machines just referred to,'has a main frame (Fig. 3) comprising leg castings 32 for supporting a bed casting 34 (Fig. 1), provided at its central part with a recessed portion 36 (Figs. 1 and 3) into which the shoe to be operated upon is introduced.

In order to cooperate with other members, which will presently be described, in holding the shoe during the heel-seat fitting'operation and for assisting the operator in presenting the shoe to the machine, themachine is provided with a shoe support38 substantially identical with the support disclosed in said United States Letters Patent N o.

1,837,399, and comprises a last pin 40 mounted for lateral sliding movement in a T- shaped slot 42 (Fig. 3) formed in the top of hollow post 44 which is in telescopic relation with a lower post 46 pivoted to the main,

frame at 48. The hollow post 44 is normally held in a raised position relatively to'the lower post 46 by a spring 50 (Fig. 3) housed in the hollow post 44 and having its upper and lower ends bearing upon the inside of the hollow post 44 and against the lower post respectively.

In order to serve as a support for the sole of the shoe as well as to guard the shoe upper from being cut during the heel-seat fitting operation, the machine is provided with crease plates 52 which enter the rand crease of the shoe, the shoe being positioned widthwise and lengthwise in the machine upon the support 38 by centralizing members 54 and a back stop or gage 55 respectively; As in the machine disclosed in United States Letters Patent No. 1,837,399,after the shoe is positioned and securely held in the machine, a rotary back cutter 56, which is supported for rotation upon a shaft 58 disposed at substantially right anglesto the sole of the positioned shoe, moves around the rear peripheral part of the sole for trimmin a tongue or reduced heelseat portion 60 (Big. 12) having a beveled marginal portion 62. To complete the heel-seat fitting operation after having cut the tongue 60 in the sole, the

ly across the sole for forming heel-breast-re' ceiving shoulders66 (Fig. 13) and'for winging out fillets 68 (Fig. 12) located immediate-- ders66 which may be said to constitute a 1 heel-breastreceiving abutment are illustratedasseparated by the full thickness of the sole. It will be understood, however, that when the tongue60 is very narrow, the heelbreast-receiving abutment extends from one side of the tongue to the other. A heel seat shaped by the use of the illustrated machineand as shown in Fig. 13 will'accurately fit the attaching face of a heel which is to be applied to the shoe and the heel-breast-receiving shoulders will conform to the shape'of the breast. of the heel, thus providing a shoe which is neat in appearance where the heel ]O iI1S the shoe upper and a heel will engage: substantially the "entire attachng face of J the heel for effectively supportingtheheel. V Y

As above stated, in fitting the heel seats of soles of compo shoes, asdistin'guished form the operation of fitting the heel seatsfof soles which are sewed to shoe uppers by'lines of stitches, itis important that thesoleesupporting crease plates 52 shallnot enter the, rand crease of the shoe forwardlyj of the breast line'TO (Figs. 11,12, and 13) of the sole and thus disturb the adhesive bondby which the sole isattached to the shoe upper.

Accordingly, in the illustrated. machine vision'is made for adjusting the crease plates 52between th'e'operations of fittingthe heel seats of soles of different sizes in order that the forward edges 72 of the crease plates 52 will terminate substantially at the breast lines of the soles of different sizes ofshoes fitted in themachines.

Another difference between the operations 'offitting the heel seats of the above-men;

ed for equal anjd'opposite movements "and are located at equal distances from an imaginary vertical median plane 74 (F ig. 1) mm.

tralized relatively to the paths of, movement of the back cutter 56 and the cutter 64 and median plane, enter the rand crease until seat which Patent Nol 12 wh ch will be referred to as a central or 0 they strike the line of sole attaching stitches located at substantially equal distancesgfrom the medianplane of the sole, while in operating upon the sole of a compo shoe another device for centering the sole widthwise as well as for positioning the crease plates, the position of which control the paths ' ofiimovement ofthecutters 66, 64, should 'be providedinin order to' avoid disturbing the cement by which the solesare attached. I j The machine disclosed in the above-mentioned United States Letters Patent No.

i 1,837 ,399 is illustrated withreference to the fitting of soles secured by stitching to'shoe uppers.

In that machinev movable templets are constrained for movement with crease plates and correspond to templets 76 of the illustrated machine, having a horseshoeshaped cam way or guideway 78 for controlling the movement of. the back cutter 56, whiehtrims material from the rear portion of the sole of the shoe to form the tongue 60, the-size andshape of which is determined mechanism which will later be described in" detail.

It is important that when the sole of a compo shoe is centralized in the machine by mech anism which will later be described, the crease plates 52 shall be moved toward each other to the same extent they would be moved if they were centralizing in the machinela sole attached toa corresponding shoe by lines of stitches. The illustrated machine which is designed to meet these conditions as will later appear may be used efiectively and inter-' changeably for fitting the heel seats of shoes, the soles of which have been sewed or cemented to the shoe uppers.

As above stated, in fitting the heel seats of compo shoes, the crease plates 52 which support the sole against the action of the cutters 56 should extend to the breast line of the sole of the shoe being fitted but should not extend forwardly of that line. Accordingly, the crease plates 52 are arranged so that they I may be adjusted forwardly and rearwardly of the machine together with the shoulderforming cutter 64, and relatively to the back stop 55 by a heel gage' controlled'by a heel 82, which is to be applied to the shoe, or a heel identical with that heel.

' The mechanism for adjusting a guide bar '84, along which the heel-shoulder forming cutter 64 is moved transversely across the sole, relatively to the back stop 55 for'forming the heel-breast-receiving shoulders 66 at their'proper positions lengthwise of the sole, will be described later and is fully disclosed in the'above-mentioned United States Letters Patent No. 1,837,399.

- Grease plate construction 7 Secured the bed casting 34 of the machine is ,a bed plate 86 (Figgl) consisting of top and bottom parts 88 and 90, respectively,

65 screwed together and having a recessed portion 92 (Fig. 4) shaped generally to conform to the recessed portion 36 of the bed plate 34.

The plate (Fig. 1) supports a pair of arcuate plates 94 which are partially included between the parts 88 and 90 of the bed plate 86 and each of which has an arcuate groove 96 (Fig. 4) for receiving a correspondingly shaped arcuate flange 97 (Fig. 1) ofthe top part 88 of the bed plate 86. The arcuate plates 94 are mounted for movement through mechanism, which will be described later, in arcuate paths along their corresponding arcu-- ate flanges 97. Secured to the central parts of the inner portions ofeach of the arcuate plates 94 (Fig. 4) are back plates 98 having their forward inner edges 100 contacting with each other and their opposing sidesdiverg ing rearwardly from the point of contact.

The backplates 98 are constructed" and 'ar-' ranged to enter the rear portion of the rand crease of the shoe positioned in the machine, the mounting of the arcuate plates 94 and the back plates 98 being such that when the arcuate plates 94 are swung along their respective arcuate flanges 97 the back plates will pivot about the point 100.

The positions of the heel-breast-receiving shoulders 66 lengthwise of the sole, as above stated, are determined by the positionof the guide bar 84 which carries the cutter 64 and which may be adjusted forwardly and rearwardly of the machine upon a carriage 102 through mechanism whichwill be described later. Since the shoe to be operated upon is positioned lengthwise of itself in the ma chine by engagement of the rear of the counter portion of the shoe against the back stop 55 which is normally bolted to the main frame, it will be clear that when shoes having different lengths of heel seats are fitted, the crease plates 52, the front edges 7 O of which terminate substantially at the breast line of the sole, must be adjusted forwardly. and

rearwardly of the sole to the, same extent as the guide bar andthat the cutter will cooperate with the forward parts of the upper surfaces of the crease plates in making the shoulder-forming cuts.

, In order. to provide rearward adjustments of crease plates 52, each of the creasev plates comprises in addition to the back plates 98 anelongated side plate 104 shaped and positioned to enter the sides of the rand crease of the shoe (Fig. 4). The inside edges 106 of the side plates 104 for the forward and engage corresponding outside faces 108 of the back plates 98 and at all times form with the back plates a substantially U-shaped support. Each of the side plates 104 is screwed to a slide arm 110 movable in guideway 112 of one of the arcuate plates 94, in which guideway it is held by a top plate 114 which may be formed integral with the top part 88 of the bed plate 86. In order. to insure that the inner edges of the crease plates 52 will be held up against the under having an upward thrust is Mechanism for opening and closing crease plates The mechanism for swinging the crease plates 52 toward and away from each other into and out of engagement with the rand crease of a shoe mounted upon the worksupport after the former has been moved rearwardly of the machine to the position shown injFig. 3, and for effecting corresponding adjustments of the templets 76, is somewhat similar to that disclosed in United States Letters Patent No. 1,834,083, granted December 1, 1931, on an application filed in the name of Harrie A. Ballard. This mechanism comprises a hand lever 118 (Fig. 3) secured to the right end (Fig. 1) of a transversely extending rod 120 supported for rotation in a bearing of the main frame and keyed to. an upwardly extending lever 122 (Fig. 3) pivot= ally secured at its upper end to a slide 124 guided along a slot 126 (Fig. 4) of a rearwardly extending arm 128 having at its rear end a bifurcated portion 130 (Fig. 3) which straddles a block132 and is connectedthereto through a pin 134, the block 132 being universally mounted upon the end of a back lever 136 pivoted at 138 (Fig. 4) to the main frame. The slide 124 is normally held in its rearward position in the slot 126 by a strong spring 140 the forward end of which is connected to an upstanding post 142 carried by the slide 124 and the rear end of which is connected to a lug 144 carried by the block.

132; The tension of the spring 140 may be changed by a screw 146 carried by the block 132 and arranged to move the lug 144 along the block. Carried by and pivotally mounted on the back lever 136 is an equalizing bar 148 each of the ends of which is pivotally secured to a forwardly extending link 150 having a recess for receiving a pm 152 carried by its respective arcnate plate 94. It vwill'be clear that as the hand lever 118 is moved down wardly, the back lever 136 will swing forwardly of the machine and through the links 150 the crease plates will be moved around the arcuate flanges 97 in such a mannerthat the rand-ereuse-entering edges of crease plates 52 will-be brought into contact with the rand crease of the shoe and that as the hand lever is raised the sole entering portions of the crease plates will be spread apart.

The connection between the upstanding lever 122 and the backlever 136 is such that upon downward movement of the hand lever and until the crease plates 52 are in their closed positions,'the slide 124 remains at the rear end of the slot 126 afterwhich, and as theoperator continues to move the hand leside of the top ver 118 downwardly thereby swinging a de I pending lever 154 (Fig. 3) rearwardly of the machine about the shaft 120 to raise the shoe support against the bottom of the crease plates as described and claimediin the above-.v mentioned application for Letters Patent Serial N 0. 287,429, the slide 124 continues to move forwardly along the slot 125 and to flex the spring 140, the rear end of which is held stationary by the block 132. After the sole of the shoe has been fitted and as the hand lever 118 is raised, the pressureagainst the crease plates by the shoe 38 is released'and the crease plates 52 will remain stationary until the slide 124 reaches the rear end of the slot 126 at which time and upon continued upward movement of the hand lever 118 the crease plates will start to separate.

In the illustrated machine, as already indicated, the sole of the shoe is not centralized in the machine by the contacting of the crease plates with the lines of the sole attach ing stitches which usually extend rearwardly of the heel-breast line of the sole but instead the movement of each of the crease. plates toward the central plane of the machine is lim-' ited by its corresponding centralizing member 54, the equalizing bar 148 serving to permit one of the crease plates to continue its movementrtoward the central plane of the machine afterthe opposite crease plate has been stopped by its corresponding .centraliz ing member.

Shoe support and operating therefor Since the mechanism for operating the shoe support 38 is clearly described and claimed in said United States Letters Patent No. 1,837,399, it will be sufficient briefly to. describe this mechanism. Inorder positively to raise the shoe support 38 for forcing the overlasted portion of the shoe against the bottom ofthe crease plates as above described, the hollow post 44 carries a pair of diametrically arranged rolls 156 (Figs. 1 and 3) constructed and arranged for engagement with a pivotally mounted cam member 157 which may be swung rearwardly of the machine by a link 158, the forward mechanism end of which is pivoted to the cam member 157 and the rear portion ofwhichis' connected by a pin-and-slot connection 160 to the dependinglever. 154. The lever 154 is fulcrumed upon the rod and is mounted for movement with the rod through-a depending segment arm 162 keyed to the rod 120 and having an arciiate slot 164 for receiving a clamp screw 166 carried by the depending lever 154 and serving to lock the segment arm 162: and theydepending lever 7 together. 1

.111 presenting to the machine the heelend 1 of an inverted shoe upon a last mounted-upon the last pin 40, the operator swings the work support 38re'arwardly of the machine and at the same time depresses the hollow post 44 chine through mechanism which will later be bottom of the crease plates described in detail, the shoe is centralized by the centralizing members 54, which may also bereferre-d to as centralizing and clamping members, after which it is positioned lengthwise in the machine by the back gage or stop 55. When the machine has been positioned, the operator moves the hand lever 118 downwardly and through the above-described mechanism causes the shoe support 38 to be raised upwardly by the cam member 157, the degree of upward force of the shoe against the crease plates being determined by the'tension in a spring 168, the opposite ends of which are connected to the depending lever 154 and the cam member 157. The degree of force with which the shoe presses against the 52 may be varied by changing the clamped position of the depending lever 154 relatively to the depending segment arm 162 through the clamp screw 166, which may be adjusted along the arcuate slot 164. In order to lock the shoe in the ma chine during the fitting operation, the hand lever 118 and the cam members 157 are provided with pawl-and-ratchet members 17 0 and 172, respectively, provision being made for tripping the pawls ofv each of the mechanisms at the end of the heel-seat-fitting operation to release the shoe preparatory to removing the shoe from the machine.

Work centraliaz'ng mechanism In order to centralize the sole of the shoein the machine, the illustrated machine is provided with the above-mentioned centralizing and clamping members '54 (Fig. 8) mounted for equal and opposite movement toward and away from each other for engagingthe opposite sides of the shoe and with a crotch or V-shaped gage 17 4against which the rear of machine.

the counter-portion of the shoe is engaged. Each of the centralizing members 54 comprises a bell-crank lever 17 6 geared at 178 to a reverse but corresponding part of the other centralizing member and is pivotally mounted upon a slide 180 which may be moved forwardly and rearwardly of the machine in a guideway 182 which is located centrally of the The slide 180 is normally held'fon wardly of the machine by a strong spring 184 retained in position by a rod 186 screwed to the slide at 188 and having its front and rear ends in contact with the slide 180 and a frame A pin 192 on the rod wardly on its guideway 194 by a spring 198 weaker than the spring 184 and surrounding a pin 200, the forward end of which is screwed to the rear end of the slide and the rear end of which is received within a recess 202 of the slide 180. The forward move- -ment of the slide 196 in its guideway 194 is limited by a stud 204 carried by the slide 196 and constructed and arranged for reception in a slot 206 formed in the right bell-crank lever 17 6 (Fig. 8). The arrangement is such that, when the shoe upon the support is moved rearwardly of the machine and is slightly depressed so that when the overlasted heel portion of the shoe engages the under sides of the forward edge portion of the partially closedcrease plates 52, pressure of. the rear of the counter portion of the shoe against the V-shaped gage 174 will move the slide rearwardly in its guideway 194 and will compress the spring 198 while the stud 204 carried by the slide 196 and operating within the slot 206 will cause the centralizing members 154 to close in upon and to clamp the sides of the shoe upper just forwardly of the breast line 70 of the sole and underneath the crease plates 52. The V-shaped gage 174 and the centralizing or clamping members 54, therefore, cooperate to position the shoe widthwise in the machine. Upon contact of the centralizing or clamping members 54 with the shoe, the slides 180 and 196 are'locked for movementtogether and move rearwardly of the machine against the pressure of a plane of the machine inorder properly to" trim the sole for receiving the heel. It will be noted, as illustrated in Fig. "10, that the outer or little-toe side 208 of the counter portion of the shoe is located slightly nearer to the median plane 210 of the sole than is the inner or great-toe side 212 of the counter portion. Moreover, it will be noted that a plane tangent to the outer counter portion 208 at the point of contact of one of the centralizing members with that portion is less inclined to the median plane 210 than a plane tangent to the inner counter portion 212 where theopposite centralizing member engages that portion. The centralizing or clamping members 54 are normally positioned as above described at equal and opposite distances from the central plane of the machine and if the shoe-contacting portions of these members were positively constrained for unyielding equal and opposite movement upon engagement with the shoe, a central point 214 located between the points of contact, such. as indicated by reference numerals 210, 212, would lie in the central vertical plane of the machine and the median plane 210 of the sole would therefore lie to one side or the other of the central plane a of the machine, depending upon whether a right or left shoe were being operated upon in the machine. I a V In order to move the shoe so that the median plane 210 of its sole will lie in the central plane of the machine when operating upon either right or left shoes, each of the centralizing or clamping members 54 is provided with an arm 216 pivotally mounted at 218 (Fig. 9) upon its corresponding bellcrank lever 176 to permit it to swing in a vertical plane relatively to that member, but normally held in position as an extension of the bell-crank lever 17 6 in the position shown in Fig. 9 by leaf springs 220secured to the bell-cranklever 176 and engaging the top and bottom faces, respectively, of the arms 216. Each of the arms 216 at its forward end is constructed and arranged universally to support a short stem 222 having an en larged end portion 224 provided with a convex surface 226 constructed and arranged for engaging the counter portions 208 and 212, respectively, of the shoe, the stem 222 being normally held disposed at right angles to the inside vertical face 228 of the arm 216 by a coiled spring 230, the ends of which engage the face 228 and the enlarged end portion 224. Each of the stems 222, which may be referred to as having a mushroom shape and which serves as a feeler, has its convexheel-contacting surface 226 so shaped as to rock or to tilt upon theconvex counter portions 208 or 212 of the shoe with which it contacts until the stem 222 1 assumes a position substantially normal to a plane tangent to the counter portion of the shoe at the point of contact. 1

It has been found, when the centralizing or clamping members 54 contact with the inner and outer counter portions 208 and 212 of the shoe as illustrated in Fig 10, that as the stems 222 tilt to assume positions normal to their respective planes of tangency the arms 216are slightly raised and pivot about their respective axes 218, the arm which contacts with the inner exterior counter portion 212 rising much higher than the arm which engages the outside exterior counter portion 208 of the shoe. Since the clamping members are geared together for equal and opposite movement, it will be understood that,'when the stems 222 tilt to positions such as illustrated in Fig. 10, the

point 214 located midwaybetween the points. of contact of the convex surfaces 226 with the shoe will move to the left of the medianplane of the machine a distance indicated by reference numeral 232. When a left shoe is positioned in the machine, the relative positions of the arms 216 and their respective rods at opposite sides ofthe shoe will be reversed and the central point214 located between the points of contact of the convex surfaces 226 with the shoe will then be located to the right of the median plane of the machine for a distance correspondingto the distance indicated by reference numeral 232. By tilting one or the otherof the stems 222, the point 232 may be shifted to vtheleft or to the right of the central plane of the machine in order that the shoe may be moved been found satisfactory for usual conditions... 1

It will be clear, however, that the stem may, be enlarged to suit specialconditions and.

that the proportions of the parts of the clamping members may be changed without departing from the invention herein disclosed.

In order to limit themovement of each of the crease plates 52 toward the other crease plate, each of the arms 216 is provided with .a stop screw 233 which may be adjustably set relatively to the arm by. a locknut 235 and which is engaged by depending portions 23 (Fig. 1) of the crease plates 52. i Mechanism for supporting and guiding back cutter The cutter shaft 58, which at all times is disposed in perpendicular relation tofthe crease plates 52 (Figs. 1 and 3) and which is moved in a horseshoe-shaped pathfor re. during the heel portion of the sole by a bevel out such as illustrated in Fig. 12, is supported by mechanism somewhat similar to that'de-.

scribed and claimed in the above-mentioned United States Letters Patent No. 1,661,391, filed in the name of W. C. Stewart and as also disclosed in said United States Letters Patent No. 1,837,399. This mechanism .com-

prises a table 23 1'c0nsisting of'spaced, par-. allelly disposed top, middle and lower plates 1 259, 236v and 238, respectively, secured to--. gether and mounted for movement forwardly and rearwardly of the machine in guideways 239 formed in the inside faces ofthe lateral sides of the-machine frame in order tolmove the back cutter 56 forwardly ofithe machine internally threaded to an operative position or to move the cutter to aninoperative position such as illustrated in Fig. 3. The back cutter 56 remains in its rearward position while the cutter 64 is operating to form the heel-breast-receiving shoulders 66. The forward movement of the table 234 in the guideways 239 is limited by a stop'240 .1) and the rearward movement of the table 234 is limited by engagement of the rear end of the table with an extension 242 of the main frame.

In order to support the cutter shaft 58 and to assure that it is disposed normally to the crease plates 52 during the movement in the horseshoe-shaped path, the mach ine is provided with an externally threaded sleeve 244 (Fig. 3) mounted upon the shaft 58 and held in predetermined axial relation therewith by uppera'nd lower collars 246 and 248, respectively, secured to the shaft 58. The sleeve 244' is carried inthreaded relation with an enlargedhub 250 having at its upper portion a circular plate 252 of a size adapted slidingly to fit within an opening 254 left between the middle and lower plates 236 and 238, respectively, of the table 234. The arrangement is such that the enlarged hub 250, through the circular plate 252, supports the sleeve 244 which in turn rotatively supports the cutter shaft 58. A recessed porf tion 256 at the forward central portion of the table 234 is sufficiently large and of a shape to permit the shaft 58 to be guided in a horseshoe-shaped path through mechanism which will now be described.

Mounted in a circular recess 258 in the upper face of the top plate 259 screwed to the upper plate 236 of the table 234 are a pair of overlapping arcuate plates or templets 76,

each having a groove 264 (Figs. 3 and 5) shaped and arranged to be received by an areuate tongue portion 266 of the top plate I 259 and arranged for arcuate adjustment tocutter-operating ward and away from each other in the circular recess 258. Each of the templets 76 has a portion of reduced thickness which overlaps a reversed but correspondingly reduced part of the other plate. The platesor templets 76 are cut away at their forward central portions to form a U-shaped portion 268 and are provided with the horseshoe shaped guideway 78 constructed and arranged to receive cam rolls 272 attached to and dependingfrom a circular plate 274 which is rotatablymounted in a correspondingly shapedopening of a cutter-operating plate 276 and which is provided with a'circular opening of a size suitable for receiving the sleeve 244 mounted upon the cutter shaft 58. "The an operating arm 280 and is slidably mounted .for'movement over the top plate 259 of the table 254' and is arranged to move the cam rolls 272 carried by the circular plate 274 around ithe horseshoe-shaped guideway 78,

plate 278 is provided with the circular plate, of course, turning-relatively to the operating plate 278' during this movement and causing the cutter shaft 58 to move in a horseshoe-shapedpath for the purpose of forming the reduced heel-seat portion or tongue on the sole located upon the crease plate 52. The cutter-operating plate 278 is fulcrumed for movement about a pin 282 (Fig. 2) carried by an operating lever 284 pivoted at 286 to the top plate 259, the arrangement being such that the operating arm 280 thus moves the work in moving the cutter in the horseshoe-shaped path, the lever 284 being mainly used for assisting the operatingarm 280 in moving'around deadcenter. 7

Instead of mounting a gear-carrying housing 288, through which the cutter is rotated andwhich will later be described, upon the cutter-operating plate, such as is illustrated in said United States Letters Patent No. 1,837,399, it has been found, because of the substantial turning movement of the cutteroperating plate 276 as above described, that in adapting the parts of themachine disclosed in said patent to the herein-described structure it is advantageous to mount the gear-carrying housing 288 (Fig. 1') upon a separate top plate 290 (Fig. 2) in order to limit, by the use of an arcuate groove292 through the pin 282, the angular swing of the gear-carrying housing 288 duringthe heelseat fitting operation. By utilizing the mechanism above described, the cutter 56 may be moved in a horse-shoe shaped path to form tongues 60 having very little width, without the necessity of thinning down and therefore impairing the strength of the cutter guiding elements. 7 I

The table 234 may be moved forwardly or rearwardly of the machine by a hand lever 294 positioned at the upper righthand side of the machine (Figs. 1 and 2) and secured to a rock shaft 294 extending through the frame of the machine and towhich isjsecured an arm 298 (Fig. connected to a rearwardly extending link 300 having near its rear end a slot 302 which is of a size suitable for receiving a pin 304 carried by a depending boss 306 of the table 234. When the table 234 is in its rearward position, the pin. 304 engages the front portion of the slot because of the pull ofa strong spring 308,

the frontend of which is connected to the lever 300 and the rear end of which is at tached to the pin 304. When the hand lever 294 is'swungforwardly of the machine, the

main frame for holding the hand lever 294. in its forward position.

Mechanism for adjust'mg templets 7 As above explained, the templets 76 are adjustable about the arcuate tongue 266 and for each degree of adjustment of the crease plates 52 about the arcuate flanges 97 there is a corresponding degree of adjustment of the templets. Since the crease plates 52 are set by the stop screws 233, which, when the shoe is positioned inthe machine, are located. at substantially equal distances from themedian plane of the sole and at opposite sides of the sole, the crease plates in their operative positions will be located at substantially equal distances from the median plane of the sole.

1 The mechanism for effecting an adjustment of the templets 76 corresponding to the ad justment of the crease'plates 52 will now be described. Pivoted to each of the templets 76at 313 (Fig. 2) and extending rearwardly of the machine are a pair of levers 314 pivotally secured at a common point 316 to an arm 318 mounted for forward and rearward swinging movement about a pivot pin 320 in threaded engagement with a lug 322 (Fig. 7) carried by thetable 234'. The levers 314 are normally urged forwardly of the machine by a spring 324, the rear portion of which is secured to the end of the-arm 318 and the forward end of which is secured to a screw 326 mounted upon the top plate 259 of the table '234. Located beneath the arm 318 and also fulcrumed about the pin 320 is a lower arm 328, which is normally rigidly held in its forward position for move-. ment with the arm 318 through a block-330. The block 330 includes a cam332 carried at the lower end of a rod 334 pivotally mounted for swinging movement in the arm 318 and having a handle 336 which may be set in the position illustrated in Fig. 2, or may be swung to a position such as shown in dotted lines 338 for moving the lower arm 328 rearwardly of the machine in relation to the arm 318. The reason for causing the lower'arm 328 to be moved rearwardly relatively to the arm 318 will be presently explaine Extending downwardly from the lower arm is a lug 340 (Fig. 7) which carries at its lower end a bolt 342 extending forwardly and rearwardly of the machine and is constructed and arranged upon movement of'the table 234 forwardly of the machine to engage an upstanding lug 344 mounted upon the crease plate operating back lever 136 (Fig. 4). The bolt 342, which carries a lock nut 346, may

7 be adjusted in the depending lug 340 so that when thetable234 is in its forward position the bolt 342, upon engagement with the up standing lug 344, will swing the arm 318 rearwardly against the pressure ofa spring 324, which normally keeps the templets 260 in closed relation, for opening the templets 76'to a degree corresponding to the degree of spread ofthe crease plates'52. When it is desired to change the back cutter556, the lower arm 328 is moved rearwardly relatively to the arm 318 by swinging the handle 336 to the position outlined in dotted lines 338 (Fig. 2), and after the 'stop'240 which sets the templets in predetermined -p0& 85

sitions relatively to the crease plates 52. p

In order to move the cutter 56in a horseshoefshaped path for reducing the sole to form the tongue 60 (Fig. 12), the operator grips the handles 348 and 350 of the arm 280 andthe lever 284,respectively, and moves the circular plate 274 guided by its cam rolls 272 around the guideway 270. The forward movement of the cutter during this operation is limited by a plate 352 carried by the guide bar 84 and with which the sleeve 244 en gages. and its supporting mechanism will later be described in detail.

When the table 234-is moved fromits forward position to its-rearward position or vice versa, it is desirable to prevent the cutter which extends below the top plate 114 (Fig. 4) from striking the top plate. According ly, provision is made for locating the cutter in-a centralized position in order that the cutter will ride lengthwise of the machine in a recess portion 354 of the top plate 114 when the table ismoving forwardly or rearwardly. This is accomplished by providing a depending roll 356 carried by the operating arm 280 and adapted to ride in a groove 358 formed in a plate 360 (Fig. 2) screwed to the upper right-hand part of the machine frame and having a wide throat for expediting, the guiding of the roll 356 into the groove 358 The construction of the plate 352 during the rearward movement of the table:

Mechanism for efiwtz'hg heightwise adjustof baclc cutter externally threaded sleeve 244 mounted ,on'

the'cutter shaft 58 and secured against axial movement relatively to the cutter shaft '58 by the collars 246 and 248 carries a spur'igear 362 (Fig. 3) which meshes with a worm 364 keyed to a pin 366 rotatably' mounted in the

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