US1748368A - Machine for grooving wood-heel blocks - Google Patents

Description

Feb. z5, 1930. W SHAW l 1,748,368 v MACHINE FOR GROOVING WOOD HEEL BLOCKS I Filed Nov. 29. 1927 I 1270627507@ 'lf/ef agfefazy Patented Feb. 25, 1936" f therefore, itiyisj impossiblev or iinpra'cticable UNITED-lerares PATENT orties l,

J'., s'iiiiw, OnMHAvnBHILL,,llessnoiusnrrsg essienonf'io nn'w EGLAN) Woon nnnncogjor HAvnRHILnMASSACHUSETTS, A CORPORATION or MASSA- CHiisETTls M 'ncninn' FOR Gnoovine Woon-'Heini BLOCKS The. presenti invention'. relates toy machines tork grooving the breasts of ivood-heel blocks,

and' more yp'arti(nilarly Cuban-heel blocks.

Theffterni Guban'will be used inthe speci"- catifon'jand: claims yto denoteA heels ot the type? herein" described, and' as distinguished troni Louis or French heels. The heels known in the trade as military heels, for eXaniple; will beincllud'e'd herein in the desig nation Cuban- .r Y

The breasts of Louis-heel blocks have been Vand the path of travel Ofltlie blocks past th'e cutter is such,that the resulting" groove in the 'breast is' transversely curved in cross section from the heelse'at to thetiead.

f Theco'rresponding cross-sectional curve of a` Y Cuban' heel extends, however, from y side .e O 1the heel, ina direction at right st'othat fronigseat to tread. In korder oovef the' kbreastsfof Cuban-heel blocks,

toiise the' autoi'natic machinery designed for breasting Louis heels; vThe difficulties connect't'dwiththe autoinati'cfgrooving of Cuban heels have no counterpartfin the breasting ofLoni's'heels and', so far as known, no one,

'prior tothepres'ent invention, has ever sncf ceeded yiii building a satisfactory .machine foiiperiorniingthis operation Cuban heels -arefstill groovethslowlyV and laboriously ivith hand-o Y leiated tools; y y .A .i ilstlijerefore'an object- 'o the present invention to provide automatic machinery of richtet-character for gro'eviiigk Cuban-heel blocks;y @ther objects'iv'ill `be explained hereinaft'e'r Vand will bey particularly'pointed out'y inithelapp'ended'claims. n Th'evinvention will' no'w be'described in ycehnection 'with lthe accompanying drawings;i`iiwhich`Fig; lis a' diagrammatic view',

in front elevation, illustrating one embodimenty oicthe"invention,v a' part being broken away" fonclearness; Fig; 2 is anrenl'arged Cuban-heel blocks, before they'are operatedy upon in the illustrative machine, havey the shape indicated in F ig. 3 by full lines. Thetread portion of the heel block is shown at 1v and the heel-seat portion at 3. The

breast 5 is bounded by the tread and` theA heel-seat portions 1 and 8 andthe side faces v 7L and 9. The face 11 opposite to the breastv 5 inclines upward from the tread portion `1 to the heel-seat portion 3.

Y Blocks of this shape are placed upon an endless carrier, with the side'ace 9 resting upon the carrier, and with the breast portion disposedat one side.; and are advanced bythe carrier to ak rotating grooving cutter 8y by which the breast'portions y5 of the 'blocks are successively 'out rlongitudir'ially along the dot-and`dashll1nes 10, shown. in

Fig. 3, fronigthe tread 1 to the se'at 3. The cut 10 may, if preferred, be effected in two stages, the secondstage of the cut being effected by a second'cutter 12 of larger dianii eter.l n

The endless carrier ycomprises a plurality of links 16 connected by pintles- 18 thatI arev adapted to be engaged by teeth 20 ofa" drivingwvheel 22 over yWhich the carrier is niou1ited. The driving Wlieel22 maybe drivenfroin any desired source of power'(not'zshoivn).

'The drivin g Wheel 22 is shown iin Figa 1 at thi` left-hand end of the machine. The' ycarrier 6 is mounted also over nan idler Wheel 24Qat the iight-handend of the machine. .The idler Wheel 2liis provided with a circular periphery and with flanges 26 between' which the links of the carrier 6 are confined. f, The periphery yoit' the driving Wheel 22, however, isv fiat-sided, as shown` more particularly in Fig. 1, -in order that the links 16 may rest snugly against the sides thereofl Whiley the teeth .20 engage the pintles 18 to drive the carrier 6.1 The carrier travels on substantial'` ly straight tracks (not shown), ensuring that Y. so as to move with the carrier.

the clamping is effected by means of clamping aws that are mounted upon the carrier The clamping jaws are arranged in cooperating pairs, and a block is adapted to be clamped between each cooperating pair of jaws. The jaws are mounted in ypairs upon each link of the carrier. As the pairs of jaws are substantially alike, it will suiiice to describe one pair of jawsonly. Y Each cooperating pair of jaws comprises one jaw 38 that is stationary with respect to the .carrier 6, and one jaw 40 thatis movand from the jaw'38. Y' 3o,..-

able with respect tothe carrier in the direction of the path of travel of the carrier. The jaws 38 and 40 are normallyseparated from eachother by adistance greater than the dis- I To effect this-pivotal movement, the lever `46 is constructed to extend beyond and to one side of the carrier, in substantially the plane of the substantiallyY straight path of the carrier. The actuation is effected automati cally during the travel of the carrier,- and Y at a time when the jaws 38 andf40 are posi'- tioned along the substantially straight portion of the path, by a cam 48 that is adapted l. to be engaged'by a roller 50 at the free en d Vof the lever 46. The cam 48 is located to onel side of the carrier, as will be understood by referring more particularly to Fig. 2, at a predetermined position in the path of travel Y of the carrier, in ladvance of the cutter 8, such that the clamping effect may be obtained after the block has been placed upon the carrier, and before it has been advanced tothe cutter 8. During the 'travel of the carrier from right to left, as viewed inFig 2, ata predetermined position in advance of the cutter 8, therefore, the lever 46 is actuatedby the cam 48 about its pivot 44, forcing the mov- Vable'jaw40 towards the stationary jaw '38,

andcausing the block 2 tobeconie clamped between the jaws, as before described. ,By the time that the block has been advanced as far as the cutter 8, it has becomey firmlyy clamped in position upon the carrier.v

A wall 52 that forms an extension of the cam 48 Vmaintains the arm 46 in position, to maintain the block clamped between the jaws,

untilafter the'block has been advanced be` yond thecutter 12. Ata predetermined position beyond the cutter 12, the lever 46'is returned to its normal position by a spring 53,

Fig. 1. more than one, as they are substantially alike.

and the jaws, therefore, release the block;k rlhough the jaws move with the carrier on both the upper and lower levels of the carrier, y .l

they are positioned Vin clamping engagement with the heel blockduring their travel only between, limits on the upper level.

Thek link 42 lpermits the jaw 40 always to align itself against the tread, and thus autoily occur in the shape and the tread-to-seat dimensions of the blocks. erably varying width are, inthatmanner, clamped with equal effectiveness.V

Iniorder to control accurately the position inatically to produce a firm clamping action, y, notwithstanding variations such as ordinar- Blocks of considi of the groove 14 upon the block 2, it is also necessary to have the blockk restV snugly on the carrier.v If the block raised `even slightly above the carrier, the` groove' will be cut too'low. Provision is therefore madeV for holding the block tightly against the carrier during the clamping movement of the -movable jaw 40.

To this end, the block 2, after it has been i positioned on the carrier, iscaused to travel under a shoe 108 that pressesy down firmly 1 against the block. The forward portion ofy the'shoe 108'is bevelled, as shown more particularly at 110, so thatthe block may enter thereunder the more readily. As ythe block is'Y carried forward by the carrier, it is caused toV i travelunder the shoe. VThe movable jaw is caused to clamp the block at this time. At Y the `time that the block is presented to the cutter, it is held snugly along the faces 7 and 9, bothbelow and above the cutter, and is at the same time clamped between the jaws at the seat 3 and the treadl, the cutter acting at a point'intermediate between the carrier below and the shoe above, and to one sideof the carrierand the shoe. During the further advance of the block by the carrier, after the block has become clainped,`the holding action of the shoe is no longer needed, andthe car,- rer therefore advances the` block beyond thek range of-action of the shoe, so as to causeithe f shoe to release'tlie blockvThe shoe continues its holding action, however, until after the cutter has cut the groove, so that the'blockis at this time clamjjiedv on all four sides. Two

.shoes 108 are provided,` one lfor each of the j cutters, as willbe clear fr om the .showing'of y It will be unnecessary to describe In orderv that theV release of the blockby the slice may be gradual, the forward portion of the shoe is lprovided with a spring Varm1`11 that maybe vsecured to the underside of the shoe in any desired manner, as by means of screws.

lThe shoe '108 isintermediately pivoted at Y Y 114 upon'a vertically yieldable plunger, in opposition to the action of a stiff coil spring 118 in aframework 120k that is verticallyy adjustable by means of a handwheel 122.

infie-eee te'vpivotel luider e. Trie eeoifeseieeienbeol demping efieetie g inne `eiiteined eitei tine bioek line niet beto-nie t et; g eie nill'notbe eo etelyipeeitjionedin i th loe'k Tlie vpo'iti n of tliej groove 10 willilfeiienel pon tlie height ters@ ahd 121A yTheseSloulcl lie situ-y oi en eli' ng gege ,4i einen, peeiti'oneel et,

e-oi LenieA li'eele; foi it becomes neces; f

j 38 pit/emily itiljlisted position. The

linie e2' Ineiinite the" 3e' te eti-inet itself tintoiiintieel-ly to itil eilj-iietrnente ei the jen eo, in tlie tie loefoie eee-need.-

Modiiioetione niet be' nitide wielen tlie Spiritend eo'op'e ofthe iioivention,v will freed--v ily cert p'rs'nssllleclin' tjlle at. It will lnetieteil enel described ie illinstiiitive only, enel tlitit the inventien is' iio't-L i-e'stiiefeil thereto, bnf ie defined by the appended elziiiiis.

' Vhaf -S c lm'ecl' is:

l. Ag machine for greeting init lengitnd-i-- nii-l direction the biens/.ie nf Ciilitin-ilieel lil-Celis; th' cre'icls icl ille' h'el-s plrtills of whichy ere inclined to the lei-tenete; the seid meeliineolinving, in combination, endlees oerifie'r comprising plurality "oi linke, two clamping :jews moiinteil upon eeneli linie ei' the carrier so as to travel with the carrier, the

n demping ieeeey oi the inne bein-gz; inolinetl to the clire'ctnrfthe pfli f tlve'l O' the Crrer' ett-:ingles eorespolclig t`0` tlie iic'l'mtion ofthe fstiicl treads sind lie'el-eeot poi-tions to the siiiel breasts, e geg/e eitiieteil at one/side 0f the path (if tr'zvel of the jaws aiid aclptell to bev eng-aged by the eiile-iijfiee projjeetingbl'es'tf a; Cbml h e'e'l bld'ckf tl'-t' is 'su-ppdte'tl logtutlillly 611v the' c'-rrei betife'e tivo' 'c'oopemting jaws to Cause the block to bev p'stioii'ed on the eniiie'i in predetermined reletiento thev seid tivojews enen ilit' the tiende and heel-sent'poiitions of the' bloek shell be eubstnntiiillypiir'nllel to theA respective jews, eneni the snitltwofjowe being nngulerly ndj'nstnlol'e on the link se' as' to eo-ire'epontltn the breestongle ef different heel bloc-keine other of tlie seid two jews' being eelfitliniiig', ineens' sitiiiitecly tttk e predetermined ii'osition iii tively 'aetuntje 'tlie jatve'iii tlie dii'eotion oi the path of travel of the Cfrlie'rse as io" case the bloek to become clniped between the etiiil two jaws' lli the si't'd predetermined zfliitll with the breast extend-ing beyond they sind tno jnwsgetonev side ofthe 'oe'r'rien ineen'eoi ing' cutter sitllagt'ed' iiilie peiliy of ti-zivel 'f theu breast, whereby the'A @im-'ier is eiinp'ted to edvenoje the breast tol the' entier rpoeitioifi sllchtll'a-t the cllttel slmll auf gefe'i the bie'zst in longitudinal dreeti.

2.- A inaoliineioigio'oving' in e loiiefit'u'die iejaicl tiende andmhe'ei-iseat portions jte the nid breasts, one of e'eli of the sind tiveA jews lie ise

beingjstationary withrespect to the carrierA and the other of each of thel said two jaws being movable with respect to the carrier towards a cooperating stationary jaW,ja gage situated at one side of the path of travelfot i the jaws and adapted to beengaged by the sidewise projecting breast of a Cuban heel block that is supported longitudinally on the carrier between two cooperating jawsv to cause the block to be positioned on the carrier in predetermined relation to the said cooperating aws, such lthat the treads and heelseat portions oit' the block` shall be substantially parallel to the respective jaws, means situated at a predetermined position inthe path vof travel of .the carrier and operable during the actuation of the carrier to actuate the Said movable jaw towards the said stationary jaw to clamp the block on the carrier in the said predetermined relation with the breast extending beyondthe said stationary jaw and the said movable jaw at one lside of the carrier, means kfor actuating the carrier', and a heel-block groovingcutter in the path i, of travel of therbreast, whereby the carrier is adapted to advance the breast to the cutter in position such that the cutter shall cut av groovein the breast in alongitudinal direc,- tion. i

3. A machine for grooving in a longitudinal direction the breasts of Cuban-heel blocks the treads and the heel-seatV portions of which are inclined to thebreasts, the said machine having, in combination, a carrier, clamping j awsmounted in pairs upon the carrierso as to'travel with the carrier, the clamping faces of the aws being inclined to the direction 'of the path of travel of the carrier at angles corresponding -to 'the inclination of the said treads r,and heel-seatportions yto the saidy breasts,one of the jaws of eachpair being stationaryl with vrespectto the carrier and the other jaw of each vpair being movable with respect tothe carrier in the direction of the path of travel of the carrier, the jaws being angularly adjustable on the carriervso as`to correspond to the inclination of the treads and the heel-seat portions to the breasts of diliierent heel blocks, means situated ata 'predetermined position in the path of travel of the carrier and operableduring the actuation of the carrier to actuate themovable jaw ofk thepair of jaws towards the stationary j aw of the pair of jawsto clamp the block on the. carrier between the vpair of jaws with the breastextending beyond the pair of jaws at the treadsand the heel-seat portions of which 1 arelinclined to the breasts, the said machine',

having, in combination, a carrier, vclamping jaws kmounted in pairs upon the carrier so` as to travel withA the carrier, the clamping faces of the jaws being inclined to the direc j.

tion of the pathof travel of the carrier at angles corresponding to the inclination of the f said threads and heel-seat portions to the said breasts, one of the jaws of each pair being stationary with respect to the carrier, aplurality of pivoted levers,the'other jaw ofeach pair being mounted upon one of the levers,

thevjaws being angularly adjustable on theA carrier so as to correspond to the inclination of the treads and the heel-seat portions to the breasts ot different heelblocks, a cam'situated, 'at a predeterminedy position in theV path of travel of the carrier and adapted/to be engaged by the said one lever during the actuation of the carrier to eHect the actuation ol:V

the movable j aw of each pair of jaws towards the stationary jaw of each pair of jaws'to clamp the block on the carrier betweenthe' pair of jaws with the breast extending be,

yond the pair of jaws at one side of the car- Y rier, means for actuating the carrier, and a heel-block-grooving ,cutter in the path of, travel of the breast, whereby the carrier is` adapted to advance the breast to the cutter in position such that the cuttershallcut a t groove in the breast lin a longitudinal direcf: Y,

tion.

5. A machine-for grooving in a longitudinal direction the breasts of Cuban-heel blocks the treads and theheelseat portions of which yarerinclined to the breasts,the said machine having, in combination, a carrier, clamping jaws mounted uponV the carrierso as to travel with the carrier, the jaws being angularl.7

adjustable on the carrier so as to correspond tothe inclination of thetreads'and the heel! icc "seat portions to the ybreasts of different heelVr blocks, means situated at a-predetermined po- W i sition Vin the path of travel 'of the carrier and operable during the actuation of thel carrier to V:relatively actuate the j awsin thel direction of the path of travel of vthe carrierto clamp the'block on the carrier betweenV the pair oi" jaws with the breast entending sidewise beyond the said two j awsl atene side ofthe carr-l llG rier,means for holding the block against the Y carrier .during therelative'a'ctuation of the jaws,means for actuating the carrier, and a lieeLbloclr-grooving cutter yin the path ot travel ot the breast, whereby ythe carrier is lfd adapted to advancerthe breast to the cutter in position such that the 'cutter shalll Cut a groove in thebreast in tion. A

6. A- machine for groovingin a longitudinal direction the breasts of Cubaneheellbloclrs the treads vand the heel-seat portions of which are inclined to the breasts, the said machine having, in combinatioma'carrier comprising a longitudinal direc;-

azplurality of pairs of =jaws,the clamping v.1 iaces-of th'evjlalws beingfinclined to the direction .off thepath oftrlanel .of the; carrier at VVV,angles corresponding to the inclination ofthe t Vsaid -treadsy and heelseat portions to the said breasts,=the aws being anglarly Vga'djnstable lon the carrier so as to correspondto the inv velinatiojri of Athe ,treads and the heel-.seat porltions :to ofthe breasts of ,dillerent heel blocks, 1D means for relatively nioving'tlle jaws :of .each pair of aws to clamp the yblock between each k,pair of jaws yon the ycarrier with the breastsy ftlireetin: I

f .1A machine `for grooving in alongitudi- @nal direction the breasts of Cuban-heel ,blocks the treads the -heelseatpontions krof which aaien@ inclined. to thefbreasts, the Said mach-n@ hav-ing, in :combinationfa carrier, .clamping f was mounted upon the carrier so t0 travel *vwgithtfhe carrier, ,thevolaniping faces of the being inclined to the ldirection .of the 3Q patlhoi .travel of the carrier at angleslcorre.

v. gsponding'to ythe inclination of the said treads jfandheel-.seat portions .to the, said breasts, the

. 1 .jaws angnglarlyy adjustable .on the carrior-sofas `to correspond to lthe inclination zof Ei-35 'theft-mls and the `heel-Seat portnls to` the f, breasts of'ydiferent heelfblocks, means lsitk hated at a /pxiedeterinined position in the-path koli travel kof the carrier and operable .during 'f ,the taation of thecarrier to relativel move aber? sin the direction' ofthe .pa-tho travel oli-t ecarrier :so as tocausethe bloclrto befy y v@eineelaniped Abetween the'jaws with the l `rea textending beyond 5the jaws at one side lojf'the arrier, anda heel-bloclegrooving cutnatedinthe'path of,travelofthebreasts,

` f whereby the @einer is adapted 'to advance the. o-kblfabtOfthe VGlitter in position such that fthe ldritter shall-,out a groovefin the :breast in a longitudinal'direction. s f

l@l8r machine /forfgrooving in,1 a longitudithe-.treadsgand theheelfseatportions ofwhich a arsenal "ed t the breasts, .thesaid machine' "fief block oneothe'meansbeina adapted to rests-theft eagles 'the .ether 11W-Q eppositefaees ,of the eel' bleek he helfbleckn the i neral ,ties @instalar adjust the meen orfzeeaeeiee "the 'heel- @ist o, t a

nection the 4breastsgof @Liban-heel' blocks- A. v v grooveinthe'fbreast. l s, 199k invalide the .othernijeans to ,hold thefbloelrkfirrnlyin position, inea-ns for 'djthfer tread sofas to-,correspond ,to vthe cut ka groovein thebreast in a longitudinal A .directiony v 9. A machine for .grooving the breasts of lfheel blocks having, in combination, La carrier, .a pair of clamping jaws Yrnonnted rupon .the carrier so as to ytravel with the carrienone of the jaws being' stationary with respect `to the carrier, a'piVo-ted lever .n.pon which the other jaw 1s mounted, `means tor .pivoting the lever to kactuate the relatively 'movable jaw-towards the relatively stationary Ijaw in the direction of the path .of :travel of thecarrierso as to clamp a heel fblock between the jaws with the breast extending beyond the jaws, means for actuating the carrier, and a heel-block grooving cutter inthe path vvof travel of the breast, whereby the .carrier is adapted to advance thebrleast in position such that the cutter shall lonta ,groove in the breast.

10. A machine for .grooving the breasts of #heel blocks having, 1n combination, Aan endless .carrler ,cornpmsing .a plnrality ,of links,

two jaws mounted `upon each link nf .the carrier so as-to travel with the carrier, 4a ,etage situated at one side of the path of .-traiel of the-jaws and yadapted 4to be engaged the 'breast ofthe heel .block to .cause Ithe rbilock to ,be positioned on the'carrier in predetermined relation to the r4said' -two -j,aws, one of the said two jaws being angularly.adjnstable .on 'the linlnfthe other of the said two jaws being se'li lalining, means situated .at a predetermined position in the path of travel of the .carrier and .operable dnringthe .actuation of the carrier to relatively move the jaws :inthe .direction of the path of .travel of the carrier so .as

to canse the blockto become .clamped between the said two jaws'in the said kpredetermined relation with the breast extending-:beyond the said two jaws at the .side oit the carrlier,

kmeans for actuating the carrier, and a `heelblock-grooving .Cutter situated in the path ,of travel .oi the abreast', whereby the carrier is adapted :to advance the s-breastwto the vremitter in position ,such thatthe cutter .shall eut a `1l. A machine Stor ,greeting the breasts -of heel =blocks havingyin combination, a vllfler,

clamping jaws .mounted upon the carrier-.so

path of travel of the carrerand operable ldaring; `,the yactuation ,of the earlierato `'inelatirelreeteei@ theieas'ietheeireetiee path of travel of the'carrier `to clamp the block on they carrier `with the breast extendingsidewise beyond the said two jaws at the said side of the carrier, means for hold--V ing the block against VVthe carrier during the relative actuation of the jaws, means tor actuating the carrier, and a heel-block-grooving cutter' in the path of travel of the breast, whereby the carrier is adaptedk to advance the breast to the cutter' in position suchthat the cutter shallgcut a groove in the breast.

12. A machine for grooving in a longitudinal, direction ythe breasts .ot Cuban-heel blocks the treads and the heal-seat portions of which are inclined to the breasts, the said 1 machine having, in combination, an endless carrier comprising a plurality-of links, clamping jaws mounted in pairs uponthe carrier so as to travel with the carrier, the clamping facev of one of the jaws oi' each pair being inf clined tothe ldirection of the path of travel of the carrier at an yangle corresponding t-o the inclination of the said heel-seat portions to-the said breasts, the said one jaw of each pair being stationary with respect to the carrier'and the said other jaw ot' each pair being movable with respect to the carrier towards a cooperatingy stationary jaw, means situated ata predetermined positionin the path of travelvof the carrier andoperable during the actuation of the carrier to actuate the said movable jaws towards the said cooperating stationary jaws to cause a block to become clamped on the carrier between a pair of jaws with the breast extending beyond the said pair of jaws at one side of the' carrier, means for actuating` the carrier, and

a'heelblock grooving cutter in the path of travel of the breast, whereby the carrier is i adaptedto advance the breast to the cutter .f in position such that the cutter shall cut a; groove in the breast in a longitudinal di#` Y rection.

13. A machine for grooving in a longitudinal directionthe breasts 'of Cuban-heel blocks .the treads and the heel-seat portions of which are inclined to the breasts, the said `machine having, in combination, an endless carrie-r comprising a plurality of links,

4'clamping jaws mountedin pairsupon the carrier so as to travel with the carrier, kthe clamping face of one 'of the jaws'of each pair being inclined to thedirection ofthe path of travel of the carrier at an angle corresponding to the inclinationv ofV the said y heel-seat portions tothe said breasts, the "said one jaw of. each pair being stationary with respect to the `carrier and the said other jaw ofeach pair being movable with respect tothe carrier in thedirectionV of-thej path of travel of thecarrier, the saidzone jaw of eachY pair' being angularly adjustable on'the carrier so 'as to'correspond to the inclination ot thev said heeliseat portions to the'breasts o1c different Geheel blocks, means situated at a predetermined and operable during'thev actuation of the car- .position in the path of travel'of the carrier .i

rier to actuate the said'movablejaws towards thefsaid cooperating stationary jaws to Vcause a'bloclrtobecome clamped on the carrier being beyond the saidy pair ofjaws.at one side tween apair of jaws with the breast extend- 'f of the carrier,.1neans for actuating the car-Vv rier, anda heel-block grooving cutter in the path of travel of the breast, whereby the lcar- Vrier is adapted to advance the breast tothe Y which are incline'dto the breasts, the said ma` chine having, in combination, a carrier,Y

clamping jaws mounted in pairs upon the carrier so as to travel with the carrier, the

clamping face of one of the-jawsof each pair-i being inclined to the direction of the path of travel ofthe carrier at an yangle corresponding to thel inclination of the said heel-seat portions to the said 4bre'asts,fone`oi the aws of each pair being stationary with respect .to

the carrier, a pluralityof levers, lthe other.

angularly adjustable on the carrier so as to correspond tothe inclination of the said heel- VVj aw of each pair 'being .mounted upon one of i the levers, the said one jawof each pair being;

seat portions to the .breasts of diEerent 'heel i blocks, a cam situated at a predetermined position in the path of travel of the carrier and adapted to be engaged by the said one lever during the actuation of 'the carrier to efect the actuationof the movable'jaw of each pair of jaws towards the said stationary jaw Yot each pair of jaws to clamp the block 'onthe carrier between,'the pair lof "jaws withthe breast extending beyondjthe pair of j aws* at onefside of the carrier, Vmeans fory actuating v.the carrier, and a heel-bloclr`groovingbutter v1n the'path of travel ofthe breast, Ywhereby the carrier is adapted y"to advance the breast Y to the cutter in .position such thatth'eeutterv shall cut a groove in the breastin a longitudinal direction. f Y

15. A machine for grooving'in alongitudinal direction the breasts-of Cuban-heel blocks the treadsy and the heel-seat portions 'o'twhicli are inclinedt'o thebreasts, the said 'Y' machine having, in combination,an endless y 'carrier'r comprising a Vplurality Yof .flinks,'y

clamping jaws mounted in Vpairs upon the, carrier soasto travel with thecarrier,"tl ie clamp- A' ning .face of onerof the jaws of each pair being inclined tov theY direction of thepath of travel` l of the carrierat anY angle corresponding to the 12' inclination" ot the said heel-seat' portions* to Y n the said breasts, the'saifd one jaw'ot eachpair being angularly` adjustable onthe carrier so asito.; correspondk .to the inclination ofthe and heelfseat portiensto. the' breasts ef dit= ferent heel blocks, means for relatively moving the vjaws of each pair of jaws toelarnp the bloc-k between each pair of jaws on the carrier imposition such that the cutter shall out a f groove in the breast of each heel bloc-k ina longitudinal direction.

f In testimony Whereof,`I have vhereunto subscribed iny name.v

WESLEY J. SHAW.

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