US2423149A - Heel seat fitting machine - Google Patents

Description

July 1,194? J. T. LANCASTER 2,423,149 v HEEL SEAT ITTING MACHIM:v I

sheets-Sheet l Filed septt 12., 1945 ult E )zz'sAttorney July'l, 1947. J. T. LANCASTER '4 l* HEEL SEAT FITTING MACHINE Filed Sept. l2, 1945 5 Sheets-Sheet? [n ventola Jom T.' Lancez Ster' By zl'sAttorn ey I July .1, 1947. l J, T, LANCASTER I l2,423,149

HEEL SEAT FITTING MACHINE Filed Sept. l2., 1945?4 A5 Sheets-Sheet .3

i613 fee [n ven top JohnTLancaster .By his Att orney July 1, 1947' J. T. LANCASTER 2,423,149

- IfllEEL SEAT FITTING MACHINE Filed Sept. kl2, 1945 5 Sheets-Sheet 4 J. T. LANCASTER HEEL SEAT FITTING MACHINE July 1, 1947.

Filed Sept. 1'2., 1945 /nvntmv Jaim T Lancaster his Attorney Patented July 1, 1947 UNITED N STATES PATENT OFFICE HEEL SEAT FITTING MACHINE John T. Lancaster, Newton, Mass., assignor to United Shoe Machinery Corporation,.Fleming ton, N. J., a corporation of New Jersey Application September 12, 1945, Serial No. 615,829

Claims. l

This invention relates to shoe machinery and is illustrated as embodied in a heel seat fitting machine.

Various types of machines have been proposed for preparing the heel-seat portions of attached outsoles of shoes for the reception of heels. vIn most of said types of machines the heel ends of shoes of different sizes are located in diierent positions to be operated upon in the machines, with relation to trimming instrumentalities, by rather complicated and expensive gaging mechanism.

It is an object of the present invention to provide a machine in which the rear ends of shoes of different sizes are located in the same position in the machine and which has trimming instrumentalities which may be moved into different operative positions so as properly to t the attached outsoles of shoes oi diiierent sizes thus positioned for the reception of heels.

With the above object in view and in accordance with a feature of the present invention, there are provided, in combination with a xed back gage and crease plates constructed and arranged to enter the rand crease of a shoe, means comprising cutters or knives constructed and arent No. 1,307,285, grani-.ed June 17, 1919, on an `application filed in the names o'fV ISamuel J.

Wentworth and Frederick H. Perry, the'front and rear crease plates forming a U-shapedopening ,through which the central part of the heel-seat heelseattab formed by the illustrative machine,

ranged to form heel breast receiving shoulders on the outsole of the shoe and initially adjustable into different operative positions lengthwise of the shoe, a heel seat reducing or tab forming cutter or knife mounted for trimming movement lengthwise of the shoe, and means for varying the amount of trimming movement of said heel seat reducing cutter in accordance with the setting of said shoulder forming means lengthwise of the shoe.

Before presenting the shoe to the machine, the heel breast line of the attached outsole of the shoe is established, after properly positioning upon the heel-seat portion of said outsole a heel to be attached to the shoe, by drawing a line across the outsole along the forward edge of the lip of the positioned heel. The shoe is presented to the machine, heel end first and bottom up, by the operator who forces the rear end of the counter portion of the shoe against the fixed back gage and 'then operates a treadle causing right and left, pairs of front and rear crease plates to be moved into the rand crease of the shoe until depending abutments secured to the crease plates engage the counter portion of the shoe, the bac-k gage and the crease plates constituting shoe positioning and supporting means.

The machine in many respects is similar to the machine disclosed in United States Letters Pat.-

the length and width of the U-shapedi opening formed by the crease plates'may be varied. Variations in widthv of the U-shaped opening may be effected by causing vright and left pairs of crease plates to be moved toward each other as above described until depending flanges thereof engage the shoe counter, the width of which varies in accordance with the size of the shoe. Variations in the length of the U-shaped' opening are effected by initially adjusting the front crease plates lengthwise of the shoe, together with carriers for the shoulder formng'knives, with relation to the rear crease plates until forward edges of the front 4crease platesfalong which edges the cutting edges ofthe shoulder forming cutters move in making their shoulder forming cuts, are in alinement with the 'ends of the heel breast line previously drawn Vacross the outsole of the shoe. In making their shoulder forming cuts the knives, in accordance'with another feature of the invention, move inward and downward against the outsole, cutting 'movement of the cutters being limited by the engagement of stops,which are adjustablyfsecured to the knife carriers, with the upper'faces of the crease plates, thereby insuring Vagainst thecutters moving below the crease plates andfdamaging the shoe upper; l I

It is desirable that the cutting edgeof' the heel seat reducing cutter in making its 'trimming cut move 'forwardto the 'forward edges of the front crease plates, which edges, as above stated, are moved into alinem'ent with the heel 'breast line drawn on'the outsole. With theA foregoing in view and `in accordance with a Vfurther feature plates irrespective of the lengthwise setting of said plates. Such action is effected by setting a cam in different positions in accordance with the lengthwise setting of the front crease plates and the shoulder forming cutters, the arrangement being such that a driving connection between powerdrlven meanseand therheelseatereducing knifeffis'irendered inoperative;byo'mechanismlactm ated by the cam when the cutting edge of said knife reaches the forward edges of said crease plates. As said power-driven meansis retracted it again becomes operatively connected' to 'the knife and moves the knifeibackdsosits retracted-or starting position. After 'thmheelL-seatipoistiomof heel seat reducing knifenhavetbeenfemoved.part way back to their retracted positions', the sho`ulde1- forming cutters are operated as aboverexplaind to form the heel breast receiving shoulders.

.-,Ellhefvarious vfeatures -o thelinventiomfwill be i. understoodande-.appreciated from the following odetailemdescriptiorr readin 'connection-withthe :taccompanyngldrawings;in-which Figs. 1,-'. 2- and: 3.are, side, frontend.. planv Niews,

:respectivelyg partly. broken. awayffand partly. in

eisectinndof .theillustrative machine;

t oflaffportioriaof themachine, cutters ofwhich.- are 'iaintlthe ipnocess: of: :formingheel breastwreceiving eishouldersiuponi :the: attached..outsole fof a; .shoe

presente dato ,the machine Fig. 5a is a section on line Va--Va ofl-Fg. 5, iillustratingeshoeeengaging abutments forming ;:paT-.tsi ofethe::creasefplatesof the .il1ustrative.;ma

schine;

l Fig 651s a.'iverticalsectionfpartly broken.. away, :.forrzline-f VI-i-VIsof: Eigs; illustrating :mechanism through/which a.heel seatireducinglknife otthe g .maohine'isaoperate 'tfisianfexploded 4view.,fslfiowing in perspeciiitive the vmechanism illustratediin Fig', ,6

1;igs.ly 8. and. are. Vsectilonsxeun.elinesf57111;.VIII eandIX-.eI-Xnfflifig: 1;

rFeg 1Q .showsmhe'aearfend of.-.A a shoerthe :heels'fseatgporton Mirthe. attachechoutsoleof :which is aabouaftosbettednbysthelzusemf,;thef illustrative nmachine tiand lfligilli-rshowsftm .shoe-.of Eig; 10laiter theheelr.-.seat portion of :its: outsolezhasbeenI operated upon YJoy.v itl-1e. illustrative.:machine.dorathe` .reoeption of a'flLouis't heel-it whichefis shown:. in:phantomi. lines 5 positionedV orrtheiheelseat of the shoe.

The illustrative :ma-chine :issdescribedawith :ref aerencef-to'reducingfthe heelaseat portion. 20. @(Figs. Stand, .1D )n.off. an. attached -outsole 2 2:V of i afshoe 24 infor theaeceptionfofna Louis-.heel 26 (Eig.` 11,);.and e.: comprises; .right and'fleft; ,pairs' -of ffronb and rear preaseplates 18,? .(.Eigs.- f1;-3, lLand 5). movable tftowardfeach: other;4 :into .itherzrand :crease of' .the i;slioe,Y aftxed backggagezz (Figsr,2.5.3, Land 5) eengagedvbydthe reariendi oi'rthe counter; portion of the shoe and (3o-operating -fJwith-athescrease ;'plates.in, positioning'.:the.shoelfimthe` machine, a 'nbulger-or-a-olls :movablefforwardntmm:x a: rettractedspositionnshownin Figs;..1; 2, Stand .4;1r over iltheheel-sseat portiorrbf theoutsolezofthefposi ..iaioneds-shoe and: constructed and arranged.- pro- -'gressi-velytdepresslthelcentralspart..ofsaidheeleiseat 'portion .through a. Urshaped opening. -36 (Fig. 115)3 formed I by. rtheicreasefplatesfandiacutter or :skn'ifei-. ;(Figs.l,= 42,1 grand: 5) y-rwhich is movable vif-forward; itpgetherawith; the` froll; with its-'straight cutting edge 40 (Fig. 5) in engagement with flat upper surfaces of the crease plates to split by a skiving cut a horseshoe-shaped piece of surplus material from the heel-seat portion of the outsole.

thereby forming a heel seat tab 42 (Fig. 11) on 5 the outsole.

During retractive movement of the knife 38 and ;.the bulger Yiwbank tdtheir'rear, starting positions, aa..pair ofsshoulder formingcu'tters or knives 44 are swung inward and downward from opposite .210s sides of the outsole 22 past forward edges 46 (Figs.

. 3, and 5).,of the front crease plates 28 to form heelbreast'receiving shoulders 48 (Fig. 11) upon the .-ou-tsole andrto sever from the outsole the 'L'.horseshoeL-shaped chip split from the outsole by c the outsole has been reduced and fitherollfadlfthefn151ftheiknife` 38.

The operative parts of the machine are mountd upon axed upstanding frame 50, hereinafter :m'eferrd to as the main frame. The rear crease plates 30 are securedby screws 52 (Figs. 1, 3, 4 maand..V 5)..to..slides 54.which.. are.movable. at right g.anglesto a. vertical .longitudina1 plane- 56A (Figs. 2, 3 and 5) of the machine along guideways58 A.formed-iny brackets. (Si).- securedto .and vforming f vpart of. theA mainframe.' 50. Formed atthe. bot- 25: toms-of ftheslides 54 are rackgz' .(Fig. 4) vwhich are operatively..connected to..pinions 64 tting in-slots, 66 .(Figs.. l,and.4)., of thebra'ckets Eiland rotatably .-mounted upon. horizontal. rvshafts 68 L whichextend throughdoores .T8 .(Fig; 4), 'll4 (Figs. l. and3)...offthebrackets 60 andithemain frame bosses 13, respectively, and are movable yforward and; rearward' to .a .limited extent. in said bores, -for purposes-whichlwillbe .explained-later. Mesh- `;ir 1g..withthe,.pinions..64.1are.a pair-.of gear seg- 35...ments..l2.,.(Figs...1, Z-.and 4)..which are keyed to Y `horizontal shaftsl'M. rotatably -mounted .in bear- ,ings i6- (E'igs. -1,. 3.and..4),l78 (Fig..1),..re spec tively; 4of. thebracket. 68 .and the main frame.. 50 and havingfsecuredtoy them. pinions-80 .(Eigs. 1 -and. 3); operatively. connectedto racks- 82-..(Figs. f ll, 2-and-3) -secured by `screws 84 to -.the.. upper `.ends .o-ffa yoke B6 secured to. aslide B8 vertically `ref :iprocablein a verticalguideway ofthevmain ,.framell.

Pivotallyconnected by apinSZAFigs.- ,1, 2 and 3) i toa dependingfportionvof the yoke 8G -is a rod 94 arranged.inetelesoopic .relation with a hollow -rod liligs, 1:and-2)...the lower. .end ot-which is. operativelyconnectedby.- a fulcrumnpin 98 -to the Arear end-.of atreadle 1D0. aThefrod 95 is provided/with Vaiiange limandthe rode-94,11%.secured-to.it a ...collan 58.4, andfsurroundingisaid rods andinter- .posed:between.saidalangeand collar is astrong coilspring J86 vthrough which upward pressure is applied to the rod 94 upon actuationf-of .the f=treadle .'I80 1'n, al..counterclockwise. direction as viewed-in fliiig.; 1. :The: treadleflili).r is` .pivotally mounted upona fulcrum pin'l and isvnormally Iheld .against van'adjustalolestop il!! by a-,spring w! l2 thelowerfend.,ofwhichis iixedxto a ,stud H4 sisccuredito. the :mainilframe 5D@ and .theuppenend .rot-which issecured to;v a' stud H5 y.carri'edby :the j yoke'.

Eachfofq the front4 creasepplates-ZS :is -slidingly 35..:mounted fortransverse movement .in-f a,l guideway f MiiE-igsl' andi) of. ablock `I2!) AE1/gs. `l,=2-and A) :havingfafdepending boss-into which-is threaded stud A22 ;(Fig::4). ttingoin a-circumferential aslot. |24 .formed Iin ...the fcorresponding'- shaft` 68. The :blocks .|281 are.supported;1 against rotation :upon the shaftsifrespectively; by pins 26 ..(Figs. 3, 4 and 5) Whichfareisecuredrto.the'brackets 6l) .fandtslidinglyinfrecesses 128 .(Figs-..4 and 5) of theblockslZD .andalso by pinsfl -'(Figs:3 and 5) which are secured to the rear crease plates 30 and the counter portion of the shoe.

lit slidingly in recesses `|32 (Fig. 5) of the forward crease plates 28.. With the above construction it will be apparent that the front crease plates 28 are moved transversely together with and to the same extent as their associated rear crease plates 39 and, through mechanism which will be hereinafter described, may be moved forward and rearward, that is, longitudinally of the machine, with relation to their associated rear crease plates. IIhe front and rear crease plates 28, 3|) together form a multipart platen and may be referred to as such. p

A forward portion |34 (Figs. 1, 2 and 8) of the treadle |99 is hinged for lateral movement with relation to the rear portion of the treadle and has secured to it a tooth |36 (Figs. 1 and 2) which may be moved by the operator into registration with any one of a plurality of teeth |38 of a treadle retaining plate |43 to hold the treadle 'depressed when the front and rear crease plates 23, 39 have reached their inward limits of movevment into the rand crease of the shoe, said limits of movement being determined by the engagement of depending abutments |42 (Fig. 3), |44 (Figs. 3 and 5e) adjustably secured to the front and rear crease plates 28, 36, respectively, with the counter portion of the shoe.

In positioning work in the machine, the operator forces the rear counter portion of the shoe *24 arranged bottom up against the back gage 32 while holding the heel seat portion of the shoe horizontal and steps upon the treadle |69, causing the front and rear crease plates 28, 39 to enter 'the rand crease of the shoe, inward movement of the crease plates stopping when the abutments |42, |44 of the front and rear crease plates engage Further downward movement of the treadle |65 causes comlpression of the spring i655, the operator then swinging the :forward portion |34 of the treadle to the left, as viewed in Fig. 2, to cause the tooth E35 of the forward portion of the treadle to be moved into latching registration with one of the teeth |33 of the plate i451, thus retaining said treadle in its lowered position.

'The lower portion of the back gage 32 lits in a slot |46 (Figs. 3 and 4) of the main frame 59 and is clamped in a fixed position in said slot by a setscrew H43 (Figs. 2, 3 and 4) threaded into the back gage and passing through an elongated slot |59 in the main frame.

It will be noted that the heel seat tab 42, the forward end of which is dened by the heel breast receiving shoulders 46, has approximately the same outline as the U-shaped opening 36 (Fig. 5) which is formed bythe crease plates 28, 3D and through which the central part of the heel-seat lengthwise dimension of the U-shaped opening 36, to the forward end of which opening the heel seatreducing knife 38 is moved by mechanism hereinafter described,

The distance between the fixed gage 32 and the rear end of the U-shaped opening is constantrfor shoes of different sizes, thelength of the U shaped opening and accordingly the length of the heelseat portion of the shoe being varied as above stated by moving the front crease plates 28 forward or rearward with relation to the rear crease plates 3U, mechanism which will be hereinafter described being provided for this purpose.

In order to vary the lengthwise positions where the shoulder forming cutters 44 operate upon the outsole 22 of the shoe 24 in accordance with the desired lengthwise positions of the heel breast receiving shoulders 48, carriers |52 (Figs.` 1 to 5), to which the cutters 44 are secured, arei initially adjusted lengthwise of the U--shaped opening 36 to the same extent as the front crease plates 28, the arrangement being such that the cutters 44 in making their shoulder forming cuts move past the forward edges 46 (Figs. 3 and 5) of the front crease plates and form shear couples therewith.

The shoulder forming cutters 44 are secured in channels |56 (Figs. 2, 3, 4 and 5) of the carriers |52 by clamp screws |58 which are threaded into the cutters and pass through slots |66 (Figs. 4 and 5) in the carriers, the heads of the screws |58 being forced against the carriers to retain the cutters in their proper adjusted positions. Each of the carriers |52 is mounted for free rotation upon its associated horizontal shaft 68 and is secured to the rear end of a spring |62 (Figs. 1, 3, 4 and 5) which surrounds said shaft and has its forward end secured to a collar |64 fixed to the shaft. Also secured to the horizontal shaft 68 are gears |66 (Figs. 1 and 3) meshing with gear segments |68 keyed to sleeves |10 (Fig. 1) which are rotatably mounted upon the lower horizontal shafts 14.

In meshing engagement with teeth |12 (Figs. l and 3) of the sleeves |19 are racks |14 the lower ends of which are secured to a yoke |16 screwed to a slide |13 (Figs. 1, 2 and 3) vertically movable in a guideway (Fig. 1) of the main frame 5D and carrying a roll |32 (Figs. 1, 2 and 9) tting in a cam groove |84 (Figs. 1 and 9) of a cam |86 secured to a drive shaft |38. The shaft |88 is operatively connected to a drive pulley |90 (Figs. 1, 2 and 3) by a one-revolution clutch I9?l which is actuated by a rod |94 connected at its lower end to the rear end of a treadle |95 fulcrumed upon a rod |91 (Fig. 1) secured to the main frame.

In order to move the front crease plates together with their associated knife carriers |52 into different forward and rearward positions in accordance with the desired length of the heelseat portion of the outsole, there is provided a hand screw |98 (Figs. 1, 2, 3 and 4) which is threaded into the main frame 5D and has mounted'on it an upstanding yoke 20|] which straddles the right shaft 68 and fits in a circular groove '202 formed between the right collar |64 and a bores by collars 2|5 secured to said shaft.

effect the'proper-,adjustment ofthe front crease plates 28 and the shoulder rforming cutters 44, it is customary; beforey positioning the shoe in the machine, to placethe heel 26 to be attached to the shoeupon the heel-seat portion of the attached outsole 22 of the shoe and to drawla line 216 (Fig. 10) across said attached outsole coincident l:with its heelbreast line. The shoe is then positioned lengthwseand vwidthwise inthe machine; as above`described,fby the back gage 32 andthefcrease'plates 28, 39,` the Ascrew |98 being rotated until Vthe forward edges 46 of the front crease-plates 28 are'inv alinement with the heel breast line-2|6-:marked on the outsole. With the heel-seat portion 290i the attached outsole 22 of the vshoe thus supported-by .the crease plates 28, Sie the shoulder forming cutters 44, when later moved along theforwar-d edges V|16 of the front crease'plates 28;-will form the heel breast receiving shoulder-s 48 which will coincide with opposite end portions ofthe heel breast line 216 on the outsole.v

The carriers |52 lforthe-shoulder forming cutters' i4 vare lprovided withy rearwardly extending lugs into which'are threaded stop screws 2|8 constructedv and Aarranged toA limit, by engagement with the flatupper .surfaces ofthe front crease plates 28, the cutting movement of the cutters, the` adjustmentiof said stop screws being such that the cutti-ng edgesl k220 (Fig. 2) of the cutters do not move-below the front crease plates 28, thus insuring against cutting the shoe upper.

The bulger or roll 34 is freely rotatable in bores of levers 222 (Figs. 1 to 6) which are mounted on a fulcrum pin` -224(Figs. 43 and 4) secured to an upstanding'boss of a slide 22S to which the heel seat'reducing cutter 38 -is securedby screws 228 (Figs. 1 andi). The slide'226 -is-movable, through mechanism hereinafter described, along a rectilinear guideway `230 (Figs. 3,'4 and 6) formed in the upper part ofy a casting 232 (Figs, 2, 3,4 and 6) .mounted upon .the shaft 212 and on a shaft 234,= said .casting being held against movement lengthwise of the shaft 2I2 by collars 236 (Figs. 3 and .4) rsecured to the'shaftvZ l2 and being held against movement lengthwise of the shaft 234 by a pinion 238 Y(Figs.- 3 and 4) and an arm 239 (Figs. 3, 5 and 7) which, as will appear later, are securedto the shaft 234; The rear'ends ofthe levers '-222 are 'operatively'connected bya fulcrum pin ,12M-(Figs. 1, 3 and 4) to alink 242 mounted upon' a'pin |244 vcarried -by a `block 246 which is mountedA for sliding movement on the slide 226 and into which is threadeda rod 258 slidingly supported in a bore-252 (Figs. 1 and 3) of an upstanding-fboss of'theslide; The levers` 222 togetherwithwthe llinkfi242form a toggle'which, w-hen the rollV 34and ythe knife 38 are in their retractedN positions Yshown in Figs. 1 and 3, is almost straight by reason of thefact that the rear ends of. the levers Yengage a sloping face 254 (Figs. 2 andfl)` of `a `camplate -256 ofthe mainframe, afspring 258 `(Figs.w 1,Y 3 and 4) surrounding the rod 250 and positioned between the block 246 and the vupstanding: boss -of the'slide 225 then-being compressed and a head at the rear end of said rod being 'spaced fromsad boss.

AsIthe knife vSli-'together-with the slide 226 is moved forwardr through mechanism hereinafter described to split material from the heelsseat portion-129 of the 'attached outsole 22 of the shoe 24, the levers-222, when .permitted by the camplate 256,--.rotatefcounterclockwise as vviewed in Fig. 4 about thefulcrum pin 224-funder the actionof the "spring 258,v causingthe roll 34-to force the central partof the Yheel-seat portion 2li-.ofthe outsole through the Ul-shaped opening..36,'. the straight cutting edge 40 of the knife 38 Which is in engagement with flat upper faces of the crease plates 28, 30 serving `to split by a skiving cut a U-shaped chip of surplus material from the heelseat portion of the outsole. The construction and arrangement of the toggle and the cam plate 256 is such that the toggle is broken to permit the roll 34 to be forced against the outsole just before the roll reaches the rear end of the U-shaped opening 36. During the retractive movement of the slide 226 the toggle, acted on by the cam plate .256, again starts to close as the roll moves rearward of the U-shaped opening 36.

In reducing the heel-seat portion 20 of the attached outsole 22 of the shoe, the cutter 38 moves forward to the corners 260 (Fig. 3)- of the front crease plates 28 irrespective-of the longitudinal setting of said plates, the extent of forward movement ofthe cutter being controlled by mechanism which will now be described and comprises a knock-off or disconnecting device 262 (Figs. 6 and 7) which regulates the amount. of forward movement of the cutter in accordance with the longitudinal setting of the front crease plates.

lThe heel seat reducing cutter 38,` as above stated, is secured by screws 228 to the cutter slide 226 which is movable in guideways 230-(Figs. 3, 4 and 6) of the casting 232 andhasa rack 264(Figs. 1, 4, 6 and '1) operatively connected to a gear segment 266. The gear segment 266 is loosely mounted between parts of thelcasting` 232 upon the shaft 234 which is mounted for rotation in bosses 268 of the main frame. Formedintegral with the gear segment 266 is a depending drive arm 213. Mounted upon a fulcrum pin 212 (Figs. 1, 3 and '1) secured to the main frame 50vis agear segment '214 having a rearwardly-projecting arm 216 which is universally connected -to theupper end of a rod 218. Secured by a setscrew 280-to the shaft 234 and in meshing engagement with the gear segment 214 is the above-mentioned pinion 238 which, during'each cycle ofA operation of the m'achine, rotates the shaft-234through a fixed arc vin response to movement of the rod 218.

There is also secured to the shaft 234- byfa setscrew 284 the above-mentioned arm 2394-in-a horizontal bore 288 (Fig. 7) in thelower end of which slides a couplingl pin 290- which is constantly urged to the left as viewed in Figs. Gand '7 by a-spring 292 and a tapered` end 294 (Fig. 7) of which normally ts in a notch 296 formed in the depending arm Y210 of the gear segment 266.

Freely rotatable upon the shaft 234is agear segment 298 operatively connected-to arack forming part of a plateY 302 secured bya'screw 304 (Figs. 1, 3 v.and 6) to--a block'306-having a bore 308 through which the right horizontal shaft 68 passes, the shaft having lsecured .to it, infront of and behind -the block, va pair. oicollars 319 (Figs. 1 and 3). With the abovey construction it will be apparent -that when the shaft 68-is moved lengthwise upon rotation of the screw |98 the block 306, and accordingly the rack 300, will participate in such lengthwise movement, with 'the result that the gear segment 298 is rotatedupon theshaft 234.

Formed integral with thegear segment 298-is a cam 312 (Figs. 6 and '1) 'which-during-rotation of the shaft 234,l is `engaged by a vpin 3I4 (Figs. 3, 6 and '1) slidable in a bore 3|6-(Fig. '1) ofthe arm 239. Secured tothe pin 3|4and extending through an elongated slot 3|8 in the arm 239 is a 9 stud 329 fitting between bifurcations of a lever 322 fulcrumed upon a screw 324 threadedinto said arm 239. The lower end of the lever 322 is provided with a notch 326 in which fits a stud 328 passing through an elongated slot 339 formed in the arm and secured to the pin 299.

When the machine is at rest, the pin 299 engages the bottom ofA the notch 296 formed in the depending arm 219 of the gear segment 266, causing the arm upon its driving movement in a counterclockwise direction as viewed in Fig. 'Z to drive the slide 226 and accordingly theheel seat reducing knife 38 forward. When the pin 3 4 during counterclockwise movement of the arm 239 engages the cam 3|2, it is displaced to the left as viewed in Fig. '7, causing the coupling pin 299 to be withdrawn from the notch 296 and accordingly breaking the driving connection between the arm 239 and the gear segment 266. The gear segment 298 and accordingly the cam 32 is set in a predetermined position inaccordance with the setting of the front crease plates 23, 4the construction and arrangement being such that the driving connection between the arm 239 and the gear segment 268 is broken or rendered ineffective further to drive the knife 38 forward when the cutting edge 49 of the knife reaches the forward corners 269 (Fig. `3) of the front crease plates 28.

When the coupling pin 299 is withdrawn fro the notch 296, it slides over a face 332 (Figs. 4 and '7) of the depending arm 219 and during retractive movement of said arm drops back into the notch 296 and upon continued retractive movement causes the heel seat reducing knife 38 to be moved back to its starting position.

The lower end of the rod 218 is operatively connected to the left end of a bell-crank lever 334 (Figs. l and 2) which is mounted upon a fulcrum pin 336 supported by the main frame 39 and carries a roll 338 fitting ina groove 349 of a cam 342 secured t the drive shaft |88.

In the operation of the machine briefly summarized, the operator, after drawing the heel breast line 2|6 (Fig. 10) across the attached out-- sole 22 of the shoe 24, presents the shoe, heel end iirst and heel-seat portion up, to the machine, the rear end of the shoe engaging the back gage 32 and the heel-seat portion of the shoe being held horizontal. The operator then depresses the treadle |99, causing the front and rear crease plates'28, 39 to move into the rand crease of the shoe 24 from opposite sides of the shoe until the abutments |42, |44 of the crease plates engage the shoe counter.

In case the forward edges 46 of the front crease plates 28 fail to line up accurately withthe heel breast line 2|6 on the outsole 22 when these parts are viewed from above, pressure on the treadle |99 is relieved slightly and the screw |98 is rotated until the forward edges of the front crease plates are in proper alinement with said heel breast line. The treadle |99 is then again depressed, causing the abutments |42, |44 to be clamped against the shoe counter, lfurther de-'i pression of the treadle causing the spring |96 to be compressed and accordingly a follow-up pressure to be exerted against the shoe counter by said abutments. The treadle |99 is then locked in itsA operative position by swinging the tooth .|36 of the forward portion |34 of the treadle to the left as viewed inFig. 2 into engagement with one of the teeth |38 of the retaining plate |49.

With theshoe thus positioned and clamped in the machine, the treadle |96 is depressed, causing the one-revolution clutch |92 to be tripped, with the result that the roll 34 and the heel seat reducing knife 38 move forward to split the heel seat tab 42 (Fig. 11) from the outsole. When the roll 34 andthe knife 38 have moved about half way back to their retracted positions, the shoulder forming knives 44 move inward and downward past the forward shear edges46 of the front crease plates 28 to form the heel breast receiving shoulders 48 upon the outsole 22 and to sever from the outsole the horseshoe-shaped chip split from the outsole by the heel seat reducing knife 38. As above explained, the heel seat reducing knife 38 always moves to but not substantially beyond the forward inner corners 269 of the front crease plates 28 irrespective of the lengthwise setting of said plates. When the heel seat reducing and shoulder forming knives 38, 44 have moved back to their retracted positions and the machine has come'to a stop, the operator releases the treadle |89, permitting the right and left pairs of front and rear crease plates 28, 39 to move away from each other back to their idle positions, shown in Fig, 3, and removes the shoe from the machine.

Although the invention has been described with reference to preparing the heel seats 29 of outsoles 22 of shoes 24 for the reception of Louis heels 26, it will be apparent that by replacing the front and rear crease plates 28, 39 as Well as the shoulder forming and heel seat reducing knives 4-4, 38 with corresponding'parts of slightly different shapes, the heel-seat portions of outsoles may be prepared for the reception of Cuban heels.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. In a heel seat fitting machine, a fixed back gage, crease plates constructed and arranged to enter the rand crease of a shoe, means comprising cutters constructed and arranged to form heel breast receiving shoulders on the outsole of the shoe and initially adjustable into different operative positions lengthwise of the shoe, a heel seat reducing knife mounted for trimming movement lengthwise of the shoe, and means for varying the amount of trimming movement of said knife in accordance with the 'setting of said shoulder forming means lengthwise of the shoe.

2. In a heel seat fitting machine, means comprising a back gage for positioning a shoe provided with an attached outsole having a heel breast line marked thereon, means co-`operable with said back gage in measuring the heel seat of the shoe lengthwise, a heel seat reducingjcutter movable lengthwise of the outsole, and means for varying the extent of movement of the cutter in accordance with the setting of said measuring means.

3. In a heel seat fitting machine, a multipart platen constructed and arranged to engage in a rand crease of a shoe, means for adjusting one or more parts of the platen relatively to the other parts, a power-operated cutter movable along said platen to reduce the heel-seat portion of an outsole of the shoe, and means for automatically varying the amount of movement of the cutter in accordance with changes in the adjustment of said one or more parts of the platen.

4. In a heel seat fitting machine, a plurality of crease plates which form a U-shaped opening and one or more of which are adjustable relatively tothe-others tovary the shape of said opening, means for'for'cing the central part 'of the' heel-seat portion of an attachedoutsole of ashoe through! the U-shaped opening, av poweroperated cutter movable lengthwise of said opening'to reduce vthe heel-seat portion `of the outs'o'le,'and means responsive to movement of said one ormore crease plates for automatically varying theV amount of movement of said cutter in accordance with Achanges in the adjustment of 4Said one or more crease plates.

5f In a heel seat fitting machine, a fixed back gage for positioning a shoe lengthwise in the machine, vmeans'for supporting the heel-seat portion 'ofen attached outsole of the shoe, a `power-operated cutter which is movable for- Ward yalong said-outsole of the p-ositioned shoe to reduce lthe heel-seat portion of said outsole, and means for automatically varying the length of theheel seat reducing stroke of the cutter in accordance with the desired length of the re- 'duced heel seat to be formed on the outsole.

""GIn aA heel `seat `tting machine, frontv and rearfplatesr constructed and arranged to'enter the randcrease of a shoe, a'power-opera'ted heel seat reducing cutter movable in a pathialong said plates-means yfor adjusting the front crease irilatesV relatively to the rearv creasev plates length- 'wise of said path, and means for automatically var'vingthe extent of movement of the cutter along s aidp'ath in accordance with the setting Y'of said front' creasepl'ates.

backgage co-operating with'the crease plates inF positioning a shoe having an attached outsole,. a heel seat` reducing' knife movable in a rectilinear path toV reduce the heel-seat, portion of the outsole of the shoe, "means for adjusting the front pair of crease.r plates'lengthwise of said path' with relation tothe rear pair of crease plates, Vand'means responsive' to 4adjustment of the/front crease plates lengthwise of the path of movement of the knife for varying the extent of'movement of the knife along saidvpath.

8. InV a heel Vseat tting'machine, means for positioning ashoe having an attached outsole, shear couples for forming heel breast receiving shoulders upon said outsole, power-operated means for `reducing theA heel-seat portion of the outsole of the shoe, mechanism for moving the shear couples into different adjusted positions lengthwise of the shoe in accordance with the desired positions at which the shear couples are to operate upon the outsole, and means respon- 'sive to movement of said mechanism for auto- 'matioally varying the operation of the heel seat reducing means.

9. In a heel seat tting machine, a pair of rear crease plates, a pair of front crease plates, said creaseV plates'being constructed and arranged to form an opening, means for moving the rear 'crease plates toward and away from each other,

dowel pin connections between eachof the rear 'crease plates and its corresponding front crease plate' for causing movement of the rear crease plates 'toward and away from each other to eiect a likev amount of movement, of the kfrontcrease plates" toward and away from eachother, and

' means for moving the front crease plates intoy dif-v 'ferent adjusted positions toward and away'from 'crease lof'N a shoe, 'cutters'inovable' inwardY from opposite sides ofthe shoe and toward the bottom of the shoe for forming heel' breast receiving shoulders upon the outsole of the shoe, andstops movable together with the cutters and constructed and arranged to engage the platen to limit movement of the cutters toward the shoe.

.11. In a heel seat iitting machine, means comprising crease plates for positioningv a shoe'having an attached outsole, knives movable'inward from opposite sides of and toward the heel-seat portion of the shoe to form heel breast receiving shoulders upon the outsole of the shoe, means for yieldingly operating said knives, and stops movable with said knives and constructed and arranged to engage the crease plates to limit shoulder forming movement of the knives.

' 12. In a heel seat fitting machine, a platen constructed `and arranged to enter the vrand crease of a shoe, a pair of shafts, a pair of carriers loosely mounted upon the shaftsI a pair' 'of knives adjustably secured to the carriers, yieldable driving connections between the shafts-and associated carriers, power-operated means for rotating said shafts to cause said knives 'to form heel' breast receiving shoulders upon anA attached outsole ofthe shoe, and stops movable together with the'knives'and the carriers and constructed and arranged to engage the platen to limit movement of the knives toward the shoe.

13. In a heel seat tting machine, a 'pair of crease plates having forward shear edges,v knives which are movable inward fromopposite sides of a shoe positioned in the machine along said edges `0i the crease plates to form heel breast receiving shoulders upon an attached outsole of said shoe, and stopswhich are movable .together with the knives and are constructed and' arranged -to engage the crease plates to limit shoulder forming movement of said knives.

14. In a he'el seat fitting machine, a fixed-back gage, a platen constructed and arranged to enter the rand crease of a shoe having an attached outsole and yto co-operate with theback gage in positioning said shoe in the machine, said platen comp rising apair ofcrease plates having forward shear edges, knives which are movable vinward from opposite sides of the shoe along said edges to form heel breast receiving shoulders lon said out sole, means for moving the knives together with the crease plates into different-operative -positionslengthwise of the positioned shoe to aline the forwardedges ofthe crease plates with afheel breastline marked on the outsole ofthe shoe, and

' prising afxedback gage for positioning ashoe having an f attached outsolef shear couplesfor forming heel breast receiving 'shouldersupon said outsole'means for' moving the shear couplesjinto different adjusted positions lengthwise of vtheshoe toA cause said couples to operateatthe heelbreast llines offoutsolesof 'shoes of different` sizes, a power-operated knife movable lengthwise of the Ashoe tov reduce *thev heel-seat portion thereof,y and mechanismmovable'in response to adjustment` of rthe shear couples lengthwise 'of' the shoe for l breast line, ofv the-outsole' of the shoe being-operated'upon irrespective' of 'the adjusted position causing'the knifeY to move forward-to the' heel of the shearA coupleslengthwise of the shoe.

16. Ina heel seat fitting machine; axed'A back gage constructed and' arranged to position lengthwise a shoe having an attached outsole, a platen comprising pairs of front and rear crease plates forming a U-shaped opening, means for moving associated pairs of front and rear crease plates toward each other to cause said plates to enter the rand crease of a shoe in order to position widthwise said shoe in engagement with said back gage, means for bodily moving the front crease plates into different adjusted positions lengthwise of the shoe to vary the length of said U- shaped opening and to aline forward edges of the front crease plates with a heel breast line drawn across the outsole of the shoe, and power-operated means for reducing the heel-seat portion of the outsole and for forming heel breast receiving shoulders on said outsole to provide a heel seat A tab.

17. In a heel seat fitting machine, opposite pairs of front and rear crease plates forming a U- shaped opening and constructed and arranged to enter the rand crease of a shoe, a xed back gage for positioning ,the shoe lengthwise in the machine and for co-operating with said crease plates in positioning the shoe widthwise in said machine, a pair of shoulder forming knives movable along the forward edges oi the front crease plates, said front crease plates being mounted for bodil7 adjustment lengthwise of said shoe to vary the length of the U-shaped opening, said knives being adjustable lengthwise of the shoe together with associated front crease plates to maintain the same relative relation of the knives with said plates irrespective of their lengthwise adjustment, and power-operated means for reducing the heel-seat portion or an outsole of the shoe and for co-operating with the shoulder forming knives to form a heel seat tab on said outsole.

18. In a heel seat fitting machine, a Xed back gage for positioning lengthwise a shoe having an attached outsole, front and rear crease plates constructed and arranged to enter the rand crease of the shoe, shoulder forming knives movable inward from opposite sides of said outsole, means for moving the front crease plates and associated knives into different adjusted positions lengthwise of the outsole in accordance with the position of a heel breast line on the outsole, a knife movable lengthwise of and forward along the outsole to reduce the heel-seat portion of the outsole, and means for moving the heel seat reducing knife different distances lengthwise of the outsole in accordance with the lengthwise setting of the front crease plates and the shoulder forming knives.

19. In a heel seat fitting machine, front and rear crease plates constructed and arranged to enter the rand crease of a shoe, a heel seat reducing knife which is provided with a cutting edge and is movable in a path extending along said plates, means for adjusting the front crease plates lengthwise of said path with relation to the rear crease plates, a cam movable into different positions in response to movement of the front crease plates into diierent positions lengthwise of said path, power-operated mechanism for moving the knife in one direction in said path to trim material from the heel-seat portion of an outsole of the shoe, and means actuated by said cam for rendering said mechanism ineffective to drive said knife further in said one direction when its cutting edge reaches a predetermined position with relation to the front crease plates.

20. In a heel seat fitting machine, means for positioning a shoe having an attached outsole, shear couples for forming heel breast receiving shoulders upon said outsole, means for moving the shear couples into different adjusted DOSORS lengthwise of the shoe to cause said couples to operate at the heel breast lines of outsoles of shoes of different sizes, a knive movable in one direction lengthwise of the shoe to reduce the heel-seat portion thereof, a cam movable into different positions in response to movement of the shear couples into different adjusted positions lengthwise of the shoe, power-operated mechanism for driving the knife in said one direction, and means actuated by said cam for rendering said mechanism ineffective to drive said knife further in said one direction when a cutting edge of the knife reaches the heel breast line 0f the outsole.

JOHN T. LANCASTER.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,757,219 Ricks et al. May 6, 1930 FOREIGN PATENTS Number Country Date 7,721 Great Britain 1904 525,815 Great Britain Sept. 5, 1940

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