US2082057A - Splitting machine - Google Patents

Description

June 1, 1937. c. E. HOOD SPLITTING MACHINE Filed March 29, 1955 6 Sheets-Sheet 1 N V i/VTU/ F CW 9 H @xj fine;

June 1, 1937.

C. E. HOOD SPLITTING MACHINE Filed March 29, 1935 6 Sheets-Sheet 2 June 1, 1937. I Q HOOD I 2,082,057

I SPLITTING MACHINE:

Filed March 29, 1935 6 Sheets-Sheet 3 V //V l/E/V 70/1 Jun 1, 1937. c. E. HOOD 2,082,057

- SPLITTING MACHINE Filed March 29, 1935 6 Sheets-Sheet 4 June 1, 1937.

'SPLITTING MACHINE Filed March 29, 1935 6 Sheets-Sheet 5 Fig.12.

:1 whmm c. E. HOOD 2,082,057

June 1, 1937. c E, HOOD SPLITTING MACHINE Filed March 29, 1935 6 Sheets-Sheet 6 Patented June 1, 1937 UNITED STATES PATENT OFFICE 2,082,057 SPLITTING MACHINE Application March 29, 1935, Serial No. 13,716

32 Claims.

This invention relates to splitting machines and is herein illustrated as embodied in a machine having a matrix into which a portion of the Work is forced during the splitting operation.

In the manufacture of a certain type of shoe, an outsole blank is split into an insole having an opening in its forepart and an outsole having in its forepart a projection which is the counterpart of the opening in the insole, the machine of the present invention being particularly adapted to perform this operation. In machines which employ a knife to which the blank to be split is fed while engaged by a matrix, it is essential that the blank be properly alined with the matrix before it is engaged and split. To this end there is provided, in accordance with one feature of the present invention, gages the cooperating members of which are normally held apart to permit a blank to be placed between them upon a table, and means responsive to the placing of the blank for causing the gages to close upon the blank and aline it with the matrix. In the illustrated construction the splitting mechanism is a knife and a pair of rolls, one of which is a matrix roll having two matrices so that two blanks, for example a right sole blank and a lett sole blank, may be split in a single operation, the rolls making one revolution and coming to rest in blank-receivingposition. The sole blanks are placed upon a feed table provided with two pairs of gages for each blank-a pair of rearpart gages and a pair of forepart gages. The membersof the respective pairs are normally held apart, but are closed upon their respective blanks toaline the blanks with their respective matrices when the blanks are placed upon the table with each blank between the members of its respective gages. The longitudinal positions of the two blanks are determined by other gages against which the toe ends ofv the blanks are thrust when the blanks are placed upon the table. Consequently, when the pairs of sidegages have closed upon the blanks, said blanks are properly alined with their respective matrices and in proper position to be engaged by the rolls. When the sole blanks have thus been located, rotation is imparted to the rolls and the feed table moves toward the splitting mechanism.

In machines of this ,kind,-it is desirable to mount the rolls in such manner that they may be quickly and accurately adjusted into difierent positions with respect to 'the knife. According, then, to another feature of the invention, the rolls are mounted on pivoted carriers, and

means engaging the carriers on the other side of the rolls from the pivots are provided for adjusting the carriers about their pivots. In the illustrated construction, this adjusting .means takes the form of slide rods, one mounted in each carrier, said rods having formed on their sides inclined surfaces which contact with inclined surfaces on stationary members, so that when the rods are moved longitudinally they are moved bodily sidewise and thus swing the roll-carriers about their pivots. 10

The sole blanks, which are to be split into insoles and outsoles, are frequently of non-uniform thickness; and when any such blank is split into two pieces, one of these pieces will also have variations in its thickness. It is prefer- 15 able, if variations in thickness are to occur in; one of the two articles which result from the splitting operations, thatsuch variations should appear in the outsole. According, then, to another feature of the invention, each blank passes through the machine with its grain side, from which the outsole is to be split, in contact with the matrix roll and with its flesh side, from which the insole is to be split, in contact with the presser or patrix roll, the last-named roll being held from movement away from the knife while the matrix roll is permitted to yield to inequalities in the blank.

These and other features of the invention, including certain details of construction and com- 30 binations of parts, will be described as embodied in an illustrated machinezand pointed out in the appended claims.

Referring now to the accompanying drawings,

Fig. 1 is a View of the front of the machine 5 looking in the direction indicated by the arrow in Fig. 4;

,Fig. 2 is a section on the line 11-11 of Fig. 1;

Fig. 3 is an elevation of the right-hand end of the machine as shown in Fig. 1; 40

Fig. 4 is an elevation of the left-hand end of the machine as shown in Fig. 1;

Fig. 5 is a section on the line VV of Fig. 3 showing the mechanism for adjusting the rolls of the splitting mechanism; 45

Fig. 6 is a longitudinal medial section of the matrix roll;

Fig. 7 is an elevation of one of the removable matrix sections;

Fig. 8 is a perspective of one of the removable 50 patrix sections;

Figs. 9 and 10 are respectively a perspective of an insole and of a corresponding outsole which result from the splitting of a sole-shaped blank;

Figs. 11, 12, and 13 are cross-sections on a 55 larger scale than Figs. 9 and 10 of portions of sole-shaped blanks after they have been split in various ways in accordance with the present invention;

Fig. 14 is a section on the line XIVXIV of Fig. 1, showing more particularly the carrier having a fiat table on which the sole-shaped blanks are placed and by which they are presented to the rolls of the splitting mechanism;

Fig. 14a is a detail in plan of the upper face of the bar 323 and certain parts carried by it;

Fig. 15 is a detail of the cam which first raises the carrier and then permits it to descend; and

Fig. 16 is a development of part of the periphery of the matrix roll, showing the mounting of the adjustable toe gage for initially positioning the sole-shaped blanks.

Referring first to Figs. 9 and 10, the machine is adapted, as has been stated, to split a soleshaped blank in such manner as to produce an insole 200 having an opening 399 in its forepart, and an Outsole 409 having in its forepart a projection 590 which is the counterpart of the opening in the insole, the shank andheel portions of the sole and insole being each of a uniform thickmess but with the insole thinner than the outsole. The shape and size of the opening 300 and the projection 599, as well as the thickness of the edge of the outsole 499 adjacent to the projection 59!! and the cross-sectional shape of the margin of the insole which is adjacent to the opening 300, may be varied as desired by adjusting the rolls and by varying the shape of the matrix used to produce the insole and outsole. Figs. 11, 12, and 13 are cross-sections on a somewhat enlarged scale through portions of the margins of sole-shaped blanks after they have been split. In Fig. 11, the edge of the sole has the thickness of the original blank. In Fig. 12, the edge of the sole is somewhat thinner. In Fig. 13, the edge of the sole is comparatively thin.

Referring to Fig. 2, the general mode of operation of the machine will be briefly described. The splitting mechanism comprises a stationary knife 2 I, mounted in the usual manner, a matrix roll 23 and a patrix roll 25. A sole-shaped blank I00 is placed by the operator on the fiat supporting surface of a table of a carrier 25| which at this time, when the machine is at rest, is in raised position, as shown. A treadle is then depressed, whereupon the rolls start to revolve, and the carrier with its feed table starts to move down on rods on which it is slidably mounted, said table carrying a pusher 29 which holds the toe end of the blank I99 against a toe gage 3| carried by the periphery of the matrix roll. After the blank has been gripped by the rolls and fed forward a certain distance, the carrier with its feed table is raised once more into the position shown. The rolls make one revolution and come to rest. During this revolution, the insole and outsole of Figs. 9 and 10 are produced, fall upon an inclined chute 33 and come to rest in superposed relation against the upturned lower end of this chute (Fig. 3).

The shaft of the patrix roll (Fig. 2) is rotatably mounted in alined bearings near the middle of a roll-carrier comprising two parallel arms, one of which is shown at 35 in that figure, and the other at 35' in Fig. 1, said arms being pivoted at their upper ends about trunnions, one of which is shown at 31 (Fig. 2), said trunnions being integral with said arms, extending at right angles thereto and being received in alined bearings in the frame of the machine. Heavy coiled springs, one of which is shown at 39, bear with one of their ends against the frame of the machine and with the other of their ends respectively against blocks, one of which is shown at 4|, which are engaged by set screws, one of which is shown at 43, said set screws being threaded respectively through bosses on the arms 35, 35'. These springs thus tend at all times to swing the arms and with them the patrix roll away from the knife 2|. In order to swing these arms about the trunnions 31 in opposition to the force of the springs 39 so as to adjust the patrix roll in the desired position with respect to the knife, the lower ends of the arms 35, 35 have alined bores to receive a slide rod 45 by movement of which this adjustment is accomplished. Referring to Fig. 5, this slide rod 45 has two inclined faces 41, 49 which are engaged respectively by inclined faces on the ends of two pins 5|, 53, said pins being slidable in sockets formed in brackets which are rigid with the frame of the machine, these pins being backed up by adjustable set screws 55, 51. A coiled compression spring 59, which bears at one end against a collar 6| pinned to the rod 45 and at the other end against the arm 35, tends at all times to slide the adjusting rod 45 to the right, said movement being limited by a hand wheel 63 carrying an adjusting screw 64 which is threaded into a socket in the lefthand end of the rod 45. The hub of the wheel 63 bears against a thrust bearing 55 which is located between said hub and a cap 61 of a sleeve 68, the right-hand end of said sleeve bearing against the arm 35. When the adjusting screw is turned in a direction to pull the rod 45 to the left (away from the observer as viewed in Fig. 2), the inclines 4'1, 49 on the rod 45 ride up the inclines on the ends of the pins 5|, 53, and the patrix roll is adjusted toward the knife (Fig. 2) against the force of the springs 39. A small rod 69 (Fig. 5), pinned to the rod 45 and having a stop nut H and a check nut threaded on its outer end, limits the extent of movement to the left of the rod 45 by contact of the nut H with the stationary bar 12 and prevents the rod 45 from being adjusted far enough to the left to cause the patrix roll to contact with the knife. The matrix roll 23 is mounted in a manner similar to that of the patrix roll just described. Referring to Figs. 2 and 5, the shaft of the matrix roll is mounted in alined bearings near the middle of a roll-carrier comprising two parallel arms l3, 13' which have alined trunnions at their up per ends, one of which is shown at 15, said arms being urged at all times to swing toward the knife by two heavy compression springs, one of which is shown at T5, the tension of which may be adjusted by turning adjusting screws, one of which is shown at 19. Referring more particularly to Fig. 5, the arms l3, '13 have slidably mounted in alined bores in their lower ends an adjusting rod 8| which has inclined faces 83, 85 engaging respectively inclined faces on the ends of pins Bl, 89 which are slidably mounted in bores formed in the frame of the machine. A coiled compression spring 9| between a collar 93 pinned to the shaft 8| and the arm '13 urges the rod to the right; and a hand Wheel 95, which carries a screw threaded into the left-hand end of the rod 8|, provides means for pulling the rod 8| to the left to move the matrix roll away from the knife. A stop screw 9! threaded through a stationary bar 98 limits the movement of the rod ill to the right so as to prevent the matrix roll from ever being adjusted into a position in which, dur- 2,082,0{17Lau the blank has proceeded tforca considerable distancea Before thesend of-thesplittingoperation; the matrix roll is freed so that the springs; 11; em ev iitz w the pawn-1 7 o rip the, 4 :1

ma t e rnat io gi-tt e o t-wfll t ethfi patrix e e' s er scr s, o ev i.- i h; is shown at 98 earried by the frame are adapted to tac wii b q i he rm ltfi'so d te a mihe he mi i o s b ssmey men 9i t e a ix roll toi var ipl the knife an d thus to prevent this r011 mineY-er com ng-mm n a t wi he-knif i In t e qe ref-t a i w ich. .th p bf the c n re ho nin i -fir hes stonseiewsa e qltiem the s shes us at ixl y when b u h wr st-has been d; n a d i is he i 1 av o i ion s ch th t i id st n lfrom the. patrix, rol l is just slightly less than the r c ne c t la tp-b a n t It i s h d during the greater of the splitting operation I Near hsi i ld tat et per t o bow ye s es leasedso as togrip theblank n orefirmlv and a. I H v g g occupies itsfextre e; right-hand position anq, hrough. .thefl pins '8;l,' i89, is holdingthe matrix roll away from the patrix roll, as, shown in- Fig-,2; I When the rolls and -the@ cam 1 are given one. ina manner presently to be described, ,.,d rins hefirst part of. the revolution, a

vent it from contacting with-the knife subsequent -y, -and before; the roll cornes to rest, the

roll is moved intoand held in the position showm v as willlbe explained in -detail later.

r e ege it 1 4 disre n r the meme t the-manner in whichQthepins 81, 89 are supported for automatic movement at times for a purpose yvhich will be descrlbed it will be noted that adjustment of, the rod 45 adj usts the patrixgrolll and holdsthat roll from ;m ovement away'lf rom theknife, and that adjustment 1 of the rod 8| adjusts the .matrix roll and holds springmressed plungers 88, 911 mo unted in sockets .-in the pins and bearingagainsjt the inclineson the rod 8 l, j [Q I It has beenexplainedthat turning the hand, :5 -5 19 is- -i '1. I. V -.the ad u n rods 45,, 8| lengthwise and adjusts the rolls'toward and two solelblanks at a'time being'presented to the p ihlan is-n s w s.:,fle h f zz a. side towardn the. patrix roll and thegrain, side wa dh e 11911 h ...mt 911 hav n been u te -l ne. an ah t t s s-i tance from ther knife edge is ;equal substantially to the desired. lthiclzness of .the edge of the sole, f and eo b v s been ediu ted, nto a position such that it s distance irom the knife from the knife .b utthe matrir; roll can;y ield, and

varies in thickllieifss corresponding variations will ness. The variationsin tthicknessat most will be small and those the edge offthe sole will disappear during the subsequent sole. edge trim similarly-mountedwith respect, t .theiadjusting l ming operations. On theother hand-the disfi? 9f q ie ii eg I Y im h k1 nesses inrthe manufacture of shoes will be avoided Returning again to rig. 5, the mechanism foia they sheuld erie' l an' Iwith more s olf in af are threadedinto the. matrix roll. In order to the endfo'ffthe splitting operation so, as;t 0 dis,

fthe- Split l n h ma inei com s to to be s i an atv nt d-"f bin app oaches ar to i e-;ne 5 -9 1 until ilieq l i ins;

edge is equal to .the desired,thickness of the edge of the insoles The patrin roll can not; yield away end at-alLtimes in contact with the end of the consequently, if the edge of the sole -shaped,blanl;-

-aslot inLthe-sleeve 68.; The upper end of the lpointeralllfl .swings over a-scale marked upon a stationarymember 12 5. Thus, as the hand-wheel it It has been explainedthat whensole blanks I00- 0 1S som ishe 5-15 by moving i--- e pr n str de S it-whi h .;is et erb Lea sl fiab yemou t r n h ame s IjOd haying inclines 10], I03 to :receive -;inclined;;;

to a bracket o theirameoithe; machine and is in a position shown imFig. 5 in which it the left thereby permitting the matrix roll tot,-

2 5 splitting operation is Qfmished,, -i t .is rem0ved to;

move toward the patrix roll toi grip the blank more firmly. It remainslthus until the splitting operation.is completed and the split blank ejected,

after which itis moved back into the position 2y shown as the machine comes torest. The pins 81,,

from the knife In order to facilitatefine adjustpointers and scales are substantially identical,

only one -w-ill be described in detail Referring to Fig. 4,'the pointer-419 for the adjusting rod 45 is vrnountedona stationary pivot -l2l" and is acted upon bya torsion spring l- 23 which holds its lower rod 45 (Fig. 1) said lower end-extending through is rotatedto-slide theirod 45in one direction or the other, .the-tipfiof the pointer moves over the scale. The other, pointer |2'| (Figs. 4- and 1) is slide rodvfll land its tip movesoveraseale ona stationary member I29.

are presentedato itheasplitting mechanism, their toe ends lareetplaced in contact with agage 3| ountedtonvthe peripheryof the matrix r011 23. eferring to.-Figs. 14- and 16, this toe gage is fast adjust the slide-membenandthe gage 3| about the" periphery ofi-the roll, the; slide member has formed H on it a small rack I31 whichmesheswith a'small- I pi i n! imm dattm filpp end of a pin m a -rqtatably mounted in a radialboreinthe roll and i o a small segmental member.l3l slidably mounted in aitransverseslideway formedin the periphcry of thelmatrixsroll, said member being held in irictionallyheld from turning byia spring-pressed plunger I43. A kerf in the top of the pin MI is adapted to receive a screw driver by which the pin may be turned.

It is desirable to provide removable and replaceable matrix and patrix sections for the two rolls of the splitting mechanism so that matrices and patrices of different sizes and shapes may be readily provided. Inasmuch as the matrix and patrix sections, except for the matrices and patrices, are substantially alike and mounted in the same manner, only the matrix sections and their mounting will be described in detail. Referring to Fig. 6, the matrix roll 23 and its shaft I45 are shown, said roll having cut-away portions to receive the two matrix sections. Each matrix section I41, I49 has a peripheral surface which corresponds to that of the main portion of the matrix roll and has formed in said surface a suitable matrix, that in the section I41 being shown in perspective at I5I in Fig. '7. Each section has also a fiat surface in which is formed a segmental groove I53 to fit over the shaft I45 and carries a cylindrical stud I55 which is radial to the shaft when the section is in place, and the inner end of which extends into a transverse bore in the shaft, said bore registering with a socket I51 in the body portion of the matrix roll. The shaft has a small bore I59 through its center, and the stud I55 has a bore which registers with the bore in the shaft when the section is in place. A long locking pin I63 is adapted to be thrust through the bore in the shaft and the registering bores in the pins to hold the sections in place. In order to push the sections out so that they may be readily grasped when the locking pin I63 has been withdrawn, compression springs I65 are fastened into sockets I51 by screws I61. In order to hold the locking pin I63 in withdrawn position without entirely withdrawing it from the shaft, a spring-pressed plunger I69 is adapted to engage a shoulder I1I formed by reducing the diameter of the locking pin at a locality near its innerend. Thus, when the locking pin I63 has been withdrawn from the bores in the studs I55 carried by the sections I41, I49, said sections are pushed out somewhat by the compression springs so that they may be readily grasped and removed. New sections are put in merely by pushing them into place on the matrix roll and pushing in the pin I63. The sections of the patrix roll, one of which is shown in Fig. 8, are mounted in the patrix roll in the same manner as the matrix sections are mounted in the matrix roll. One of the patrix sections with its stud, together with the patrix roll, its shaft, its locking pin and the spring which pushes the patrix section out when the locking pin has been withdrawn, is shown in Fig. 2.

Referring to Fig. 4, the locking pin I63 of the matrix roll has fastened to its outer end a fingerhold I13, and the locking pin I15 of the patrix roll has a similar finger-hold I11, said finger-holds facilitating the manipulation of these two pins. It is desirable that means be provided to prevent the machine from being accidentally started while either of these pins is in withdrawn position during the removal and replacement of matrix or patrix sections. To this end, means is provided for preventing the clutch (later to be described) from being thrown in whenever either of the looking pins is in withdrawn position. For this purpose, depending fingers I19, IBI of a guard member I83 normally extend over the finger-holds I13, I11 of the locking pins and prevent them from being withdrawn. When it is desired to withdraw them, this guard member I83 is swung up about its pivot I85 so that the fingers I19, I8I are out of register with their respective locking pins. When the guard'member is thus swung up, its tail engages the outer end of an arm I81 the hub of which is fast to one end of a rockshaft I89, this being a shaft which must be rocked, clockwise as viewed in Fig. 4, to throw in the clutch. The other end of this shaft I89 is shown in Fig. 3. To it is pinned the hub of an arm I9I which, when swung to the left, releases the pin of a pin-clutch and throws in the clutch which starts the machine. Also pinned to the shaft I89 is the hub of a curved arm I93 to the outer end of which is pivoted the upper end of a treadle rod I95 to the lower end of which is pivoted a treadle, not shown, a spring of any suitable type, also not shown, being provided to maintain the treadle rod I95 normally in its upper position, as shown. Returning now to Fig. 4, it will be seen that when the guard member I83 is in the position shown, the treadle can be depressed to rock the shaft and throw in the clutch; and when the guard member has been swung up to permit withdrawal of the locking pins I63, I15, the clutch can not be thrown in. The guard member I83 is held in the position shown by a spring-pressed plunger I94 which passes through a bore in the guard member and engages a shallow socket in a stationary member. Another shallow socket I96 receives the end of the pin when the guard member has been swung up. This plunger I94 and its spring are shown more clearly in Fig. 1. 7

Referring to Fig. 3, the clutch is of the wellknown pin type and will not be described in detail, since any suitable clutch may be employed. It will be understood, however, that when the arm I9I has been swung to the left to free the pin, the clutch is thrown in and rotation is imparted to the driving shaft I91 until the arm I9I is permitted to be returned by the usual treadle-rod spring, not shown, to the position shown when the driving shaft comes to rest. A friction band. brake I99 of the usual type is held about a drum on the shaft by a bolt 20I and a spring 202.

The train of gears by which rotation is imparted to the shafts I45 and 203 of the matrix and patrix rolls respectively will now be described. Referring to Figs. 1 and 3, there is fast to the driving shaft I91 a small gear 205 which meshes with a large gear 201 fast to a shaft the axis of which coincides with that of the trunnions 15 about which the arms which carry the matrix roll are pivoted. Also fast on the same shaft with the gear 201 is a smaller gear 2 which meshes with a gear 2I3 on the shaft I45 of the matrix roll. The same gear 2| I also meshes with an idle gear 2I5 on a stub shaft whose axis coincides with that of the trunnions 31, said gear meshing in turn with a gear 2" on the shaft 203 of the patrix roll. This gearing permits the arms which carry the matrix and the patrix rolls to be adjusted in the manner which has been described about the axes of the trunnions 15 and 31 without disturbing the mesh of the gears 2| I, 2I3, 2I5 and 2I1, the gear 2 I3 rolling on the gear 2I I, and the gear 2 I 1 rolling on the gear 2 I 5. In order to cause the clutch to be thrown out and the matrix and patrix rolls brought to rest after they have completed one revolution, during which time the driving shaft I91 will have made several revolutions, there is formed on one side of the large gear 201 a cam 2 I 9 upon which rests a roll 22I carried at the outer end of an arm 223 the inner end of which is fastened to the rockshaft I89 to which is also fast,

' Ito *as' has beencstated, the arm ['91 r'ocki'ng of which? 'isdepressed'to' swing the arm l9l to the left (Fig, 3), the clutchisthrown in and the large the arm l 9 l"from swinging back into 'theposition shown until said roll runs ofi'fromgthehig'h part of the cam 219, whereupon the armfl9l swings" rest.

" porting tableof a'carrier 251 andjpresented to the rolls of the splittingmechanisni, Reierring""* "to Fig. 1, the machine is shown at restfwith two "gear 201 begins to rotate; The smallfroll-j22l e-n gagesthe high part of the cam- 2l'9 and-prevents 7 "depressed and;released, the matrix and 'patrix" rolls make one complete revolution and'co'me to" H As has been stated above, the sole-shaped" blanks "are placed two at a time on the flat sup blanks I 00,"indicated inldotted lines, in approximately the position they will joccup'ywhen the hrows the'clutchin or out. When the treadle 1 gages of the} other blank I00, and tends at all times to swing'the vertical arms of the bell-crank levers 2H, 28'! toward each other. This spring thus acts always, when "permitted to 'doso to move into contact with the blank the rear-part ages 261,263, as well as'to cause a similar movement offthe other pair of rear-part gages 305,

back and 'the ma'chine comes to rest, this mechanism being 'so designed that when the treadle is 301. In order to cause the rear-part gages 261-, 263' to maintain in all positions their parallelrelation' to each other, two links are provided,

namely a link 283 pivotedat its lower end to an ear 'on the gage 261 and at its upper end- "to the horizontal arm of the bell-crank lever 211, and a link 285 pivoted at its lower end to an car on the gage 263 and at its HD1361 e'nd to the horizontal arm'of the bell-crank lever 215. The gages 261, 263 are being held spaced apart by 'alatch which is released by means of tripfmembers' having push buttons which are machineisstarted. These soles are n'otexactly" 2 'in' such'fposition, since certain sidegages, pres ently to be described, have not yet been caused to act upon them to linethem up properly with their respective matrices and patrice'sl ,jIhe carrie'r' 251 comprises a heavy casting, slidablyf encountered and moved when the blanks I00 are pushed down uponthe table formed by the flat bars 254, 255, 25.1 and 259. When this latch is released, the 'ga'ges 26l', 263 move toward each otherin parallel relation under the force of the "spring 219 to engage the rear part of the blank.

The forepart gages 265, 261 are mounted in the same manner as the rear-part gages, being 7 mounted on inclined studs 253 carried by the" frame of the machine whichis'rais'ed into the position shown "by'a cam, presently to be des'lcribed, thenpermitted by movement cf"'the'same canrto descend by gravity to present the blanks i Z to the splitting mechanism andis thenreturnedf to the positior'fshown. The carrir 251, in its middle portion, has a c'ross-sectionatfshape," shown in Fig. 2,.and isprovided with four flat 1 254; 255,251, 259 which provide aib lank j' T suppe -nag table the plane of which"extended passesbtween the rolls of thesplitting mecha f'table' with their toe ends against the toe gage 131 on the matrix roll preparatory to being split,

provided for each blank, the members'of each pair of gages being held spaced apart when the machine is at rest but being caused to close upon their respective blanks when the blanks are part gages and a pair of forepart gages are" "raised position and'a stop screw 299 has engaged fa horizontal arm of the bell-crank lever 21I m'sm, When two blanks are placed upon this" l 'itjis desirable that they be properly lined up" with respect to their respective matrices and' patrices. 'To this end- (Fig. 1), a pair of rearand swung it into the positionshown. The foreagainst the upper surface of the horizontal arm of the bell-crank lever 281, the upper. end of said rod having been engaged during the; preseated on the flat surface of the table formed by thebars 25 4 255 251, 259, the blanks in being so 'seated engaging trip members which release thegages. Inasmuch as the two pairs of gages 55 stantially identical in construction and mode of "operation with those of the other blank, only the two pairs of gages associated withlthe righthand blank will be described in detail. For the provideda pair of-rear-part gages 26 1, 263, and a pairof forepart gages 265,261. An ear on the fgage 26I is pivoted at 269 to the lower end of the vertical arm of a bell-crank lever 21! which 65 H zontal arm of this bell-crank lever having at its (rear-part and forepart) for one blank are sub is pivoted to the carrier 251 at 213, the horik I v lower end of which engages a, horizontal arm of afbell-c'rank lever 3l9'which carries the gage right-hand-blank I00, shown'in Fig. 1, there are free. end a segmental gear which meshes with a' segmental gear at the free end of the horizontal] arm of a. second bell-crank lever 215 which is also m pivoted'to the carrier, a d the downward extending vertical arm of which is pivoted at 211 "than ear on the gage 263. A long tension spring I v i a V upper end of a rod 325 slidably mounted in the 219fc'onnects the vertical arm of the bell-crank lever 28l,which carries one "or" the rear part "lever 21l with' the vertical arm, of Ta bell crank.

vious upward movement of the carrier by a stop screw 303 which is directly behind the stop screw 299, as" 'viewed in Fig. 1, but is shown in Fig. 14., The construction, mounting and general mode of operation of the rear p'art and forepart gages for the right-hand blank 100 (Fig. 1) have been described in detail above. The rear-partandforepart gages for the left-hand blank 100 are constructed, mounted and operated in substantially .partgages 265, 261 are being held apart by a 'small' vertical rod 30|slidably mounted in the "carrier 25l, the, lower end of which is pushing the same manner, and no detailed'description Will be given. It will be noted, however, that the rear-part gages 305, 301 are being held apart by the engagement of a stop screw 309 with the upper surface of the horizontal arm of a bellcrahk lever 3 which carries the gage 305, and

that the forepart gages 3l3, ,3l5 are being held apart by meansof avertical sliderod 3I1 the carrier 25!. rod is prevented from turning (Figs. 1, "3, 14a) by a small stud 324 carried by the carrier 25!, which extends up through a bore in the bar 323. This rod 325 has pinned to it a catch member 321 having a downwardly extending sleeve to receive a compression spring 329, the lower end of which bears upon a bracket which is part of the carrier 25!, the rod being held down, in the position of parts shown, by a latch 33! which is pivoted to the frame of the machine at 333 and is urged to swing to the right by a compression spring 335. This latch has slidably mounted in its upper portion, for a purpose which will presently appear, a contact member 331 which is acted upon by a compression spring 339, said spring being located between a bored plug 34! and a collar 343 fast to the round stem of the contact member 331. This round stem extends up through the bore in the plug 34! and has a stop nut 338 and a check nut threaded upon its upper end. The latch 33! is released by pressing the sole-shaped blanks I00 respectively against two push buttons 345, 341. The button 345 (Fig. 14) is fast to the outer end of a small slide rod 349 which is pivoted at its 'inner end to one end of a substantially horizontal bar 35!, the other end of which is pivoted to the inner end of a second slide rod 353 (Fig. 1) to the outer end of which is fastened the other push button 341 against which the left-hand blank I93 is pressed by the operator. The bar 255 has cut-away portions in its lower edge to permit the buttons 345, 341 to be pushed in fiush with the bar. With this construction, it is neces sary to press the blanks I00, one against each of the push buttons, in order to cause the bar 35! (Fig. 14) to swing back the latch 33! and thus release the slide rod 325 and permit the spring 323 to raise the rod and thus to raise the stop screws 299, 303, 309, and 32! to release the rear-part and forepart gages (Fig. 1) and permit the long tension springs 219, 295 to move the gages into contact with the blanks I!!!) so as to aline the blanks properly with their respective matrices. If only one of the buttons 345, 341 is pushed back, the bar 35! is merely moved angularly and no thrust is exerted by it to swing back the latch 33 Both buttons must be pushed back to release the latch. It may be desirable at times to present only one blank at a time to the machine and in such case pushing in only one of the push buttons should free the latch and cause the gages to close upon the blank.- To this end, means is provided for locking one of the push rods 353 (Fig. 2) in its inner position. This means takes the form of a set screw 332 threaded through a portion of the carrier 25! and adapted to engage a shallow socket 334 formed in the periphery of the push rod 353 when that rod has been pushed in. With the push rod 353 thus held, pushing in the other push rod 349 (Fig. ,1) will release the latch. The carrier 25! is raised and held temporarily in the position shown by a cam 351 (Fig. 15) on the shaft 15 which acts upon a roll 359 mounted on the carrier 25!, the cam being shown in its position of rest in that figure.

Referring now more particularly to Figs. 1 and 14, the operation of the blank-presenting mechanism as thus far described will be given. Two blanks are placed with their toe ends against the toe gage 3! on the matrix roll and pressed back against the push buttons 345, 341 to cause the bar 35! to swing the latch 33! to the left (Fig. 14) and thereby free the catch 321, whereupon the rod 325, and with it the bar 323 and its stop screws, are moved up by the spring 349. Moving the stop screws up frees the four pairs of gages to permit them to close upon and aline the blanks with their respective matrices. The blanks are now positioned sidewise and lengthwise. The treadle of the machine is depressed. The rotation of the cam 351 permits the carrier 25! to slide down upon its studs 253, and this downward movement of the slide continues until the splitting operation has been partially completed, whereupon the cam 351 returns the carrier 25! to the raised position of rest shown. When the latch 33! was released by being swung to the left (Fig. 14) the catch 321 was moved up as has been described. Before the carrier 25! started to rise, the latch had swung back under the influence of the spring 335 to move its contact member 331 into the path of the rising catch member 321. Consequently, as the carrier 25! approached the upper limit of its movement, the catch member 321 engaged the contact member 331 of the latch, and upward movement of the rod 325 (which had been moving up with the carrier 25!) was arrested. The upward movement of the bar 323 with its stop screws was also arrested. As the carrier 25! completed the last part of its upward movement, the stop screws in the bar 323 acted in the manner which has been described upon the bell-crank levers 215, 3! 289, and 291 (Fig. 1) to open the four pairs of gages which engage respectively the rear parts and the foreparts of the two blanks. It will be noted, by reference to the shape of the cam 351 (Fig. 15), that the carrier 25! is moved up to the extreme limit of its upward movement and is then allowed to descend a trifle so that the cam stops in such a position that, when the machine is started, the carrier will at once begin its downward movement under the influence of gravity. It is because of the shape of this cam and the consequent fact that the carrier is first moved to the extreme limit of its upward movement and allowed to descend a trifle that the spring-pressed contact member 331 (Fig. 14) is mounted in the latch 33!. When the carrier has reached its upper limit of movement, the four stop screws, of which two are shown at 299, 303, have engaged their respective bell-crank levers and opened the four pairs of gages. If now the contact member 331 was rigid with the latch 33 I, the subsequent short downward movement of the carrier 25! to its position of rest would move the bell-crank levers away from the stop screws and permit the members of the four pairs of gages to approach one another to some extent. With the construction shown, the spring-pressed contact member 331 maintains the stop screws in contact with the bell-crank levers and holds the four pairs of gages wide open. A stop screw 36!! (Figs. 1, 14, and 14a) threaded through the bar 323, by engaging the carrier 25!, limits the extent of downward movement of the bar with respect to the carrier.

In order to make sure that the toe ends of the blanks I00 are in contact with the toe gage 3! (Fig. 14) before the machine is started, and to maintain them in such contact during the first part of the splitting operation, two pushers 29, one of which has been referred to in connection with Fig. 2, are provided. These pushers are formed (Fig. 1) as the inwardly bent lower ends of two downwardly extending arms of a sheet metal plate 36!. This plate extends through a, slot 363 (Fig. 14) in the upper end of a rod 365 and is pivoted to the rod by a headed pin 361 the stem of which passes through a hole in the plate 36! and through any selected one of a row of hol'es 369 through the rod 3B5;*'I-'his rod isslidably mounted in bearings in the carrier 25|,-

and its lower end extends into a socket 31| in the carrier, the lower end-of the rod and the socket forming a dash-pot the purpose of which will appear'later.

a part of the carrier 25L exerts a downward pressure on the rod. The rod is held up, when the parts are in the positions showmby a lever 31-1 2' pivoted near-its middle I at 319' to the carrier 25| I said lever engaging with one end a pin 38| car-- ried by the rod 365 andwith the other end thebottom of the downwardly extending sleeve formed on the catch member 321.

' prevent the pusher-rod 365 from turning in its bearing, the inner end of the stem ofca small screw 383, which is mounted in the carrier extends into a longitudinal groove 385 in the rod 365.

The wholeoperation of the-blank-presenting mechanism and the splitting mechanism will now be. described; Referring 'first to Figs. 14

and 15, the carrier 25| is in raised positiombeing so held by the cam 351'.

their respective matrices'and with their toe ends in contact with the gage 3| on the matrix roll,

and-pushes theblanks firmly into contact with the table formed by the spaced flatbars 254, 255, I 251, 259.

In doing-so, the buttons 345, 341 are pushed in, and the lat'ch 33 I is swung out to free the slide rod 325 which rises under the influence of the spring 329 and thereby permits the four pairs of gages (Fig.1) to close upon the blanksand aline them'with their respective matricesw' When the'slide rod 325 moves up, it releases the slide rod 365 which is then free to be moved down by its spring 313. This rod 365 does not, however, move down instantly but lags by reason of the dash-pot construction at its lower end so as to make sure that the gages have closed against the opposite edges of the blanks before i the pushers 29 begin to operate. The blanks are now in proper position, being alined' with their respective matrices, and with their toe ends held firmly against the toe gage 3|. The treadle o1 the machine is depressed and released, where upon the rolls make one revolution. During the first partof the revolution, thecarrier'25l slides down so as to make sure that the blanks are properly presented to and grasped by the rolls. 3

During the latter part of the revolution, the cam 351 raises the carrier 25L As the'carrier rises, both slide rods 325, 365 rise with it until the latch 33| engages the catch 321 .to' arrest the upward movement of the rod 325. Thereafter the upward movement of the carrier 25| since it carries with it the pivot 319 of the lever 311, raises the slide rod 355 with respect to the carrier and compresses the spring 313. The upward movement of the carrier, after the slide rod 325 has been engaged by the latch, also opens the four pairs of gages byrcausing the bell-crank,

levers, by which the members of the pairs of the gages are carried, to be rocked ,by means of the 1 stop screws carried by the bar 323. The cam 351, as has been explained, raisesthe "carrier 25| to the extreme upper limit of its movement and then permits it to descend through a short dis-' tance, the stop screws in the bar 323 being: held by the action of the spring-pressed contact member 331 in position to maintain the four pairs of gages open. The parts of the blank-presenting mechanism then come to rest in the positions A coiled compression spring 313; 1 located between acollar 315 fast to the rod and In order toformed while the insoles pass over the knife 2| (Fig; 2)

I The operator places two sole-shaped: blanks 1 approximatelyin line with showni-' Returning now to'thesplitting mechanism ,"it'wi1l be recalled that when the splitting rolls are at rest, the'r'natrix'roll is name held, by

means of the rod '99 (Fig. 5),the pi'ns*'81,-89 and the rod -8l,-at adistance from. the 'patrix roll which -is'slightly less than the thickness of the :blanka-but near enoughto the-patrixrollso that the rolls grasp the blanksandfeedthe'm= firmly -to-the -knife- The splittingoperation proceeds thusuntila locality nearthe trailing end of the blanks has been'reached, when the 'rod 99- i's slid to theleft' to permit thematrix roll to be forced more firmly into contactwith the-blanks so as -to ensure that the blanks will be ejec'tedfrom the rolls'at the end" of the splittingoperation. Each *of the sole-shaped blanks is split into an insole like that shown in Fig. 9, and an-'outsole like that=shown in Fig. 10. The outsoles (see Figs. 2 and 3) fall directly upon the chute 33 and are directed into-superposed relationfiupon the outsoles by a sheet =meta'l -baflle "plate 381 fastened by screws 389 to the frame-of the machine (see also Fig. 1).

Although the invention has been set forth "as embodied ina particular machine,'-it=-should be *un'derstood that the invention is notlimited in the scope of its application'to'the particular machinewhich has been shown and'described.

'Certainfeatures herein disclosed are also dis- "closed in prior application-Serial N05 "748,522,

filed October 16;" 1934,*'-in my name;- said prior application disclosing a 'machine 'for splitting a sole blank into a complementary"insole outsole combination; and all patentablesubject 'matter common 'to that application and this one is claimed in said prior application.

Having described myinventio'n, what-I claim as new and desire to secureby Letters Patent of placed'upon the table between-them, and "means "operated by so placing the blank for causing the gages to engage and aline the blank.

2. A machineof the class described'havingf'in combination, splitting mechanism including a matrix, means for alining a blankwith the matrix; saidmeans 'comprising 'a "tableupon which the blank'is placed and blank-alining gages -normally heldspaced "apart'to permita blank to be placed upon the table between them,

means'operated by'so placing the blank for causing the gages to engage and aline the blank, and

means ffor thereafter causing thetable to move toward the splitting mechanism and the splitting mechanism to operate.

3; A 'machine of the class described'having, in combination," 1 splitting -mechanism including a .matrix, means for alining a blank'with the matrix, said means comprising a table-upon which the blankis placed and blank-alining gages normally held spaced apart to permit a blank to be placed upon the tablejbetween them, yielding means urging the gages'toward theblank," and means'operated by placing'a blank on the table forireleasing the gages to cause "them to'engage and aline the blank. 7

4. A machlneof'theclass described having, in combination," splitting mechanism including a matrix, and'means for alining a"blanlrwith the matrix, said means comprising a table upon which the blank is placed, blank-alining gages normally held spaced apart to permit a blank to be placed upon the table between them, means operated by so placing the blank for causing the gages to engage and aline the blank, and means for maintaining the gages in parallel relation in all positions which they may occupy.

5. A machine of the class described having, in combination, splitting mechanism including a matrix and means for alining a blank with the matrix, said means comprising a table upon which the blank is placed, bell-crank levers having two of their arms geared together, blank-alining gages carried by other arms of the bell-crank levers, yielding means urging the bell-crank levers to swing in directions to cause the gages to close on the blank, means acting in opposition to the yielding means for normally holding the gages spaced apart to permit a blank to be placed upon the table between them, and means operated by so placing a blank for releasing the holding means to permit the yielding means to cause the gages to engage and aline the blank.

6. A machine of the class described having, in

I combination, splitting mechanism including a matrix and means for alining a blank with the matrix, said means comprising a table upon which the blank is placed, bell-crank levers having two of their arms geared together, blank-alining gages carried by other arms of the bell-crank levers, yielding means urging the bell-crank levers to swing in directions to cause the gages to close on the blank, means acting in opposition to the yielding means for normally holding the gages spaced apart to permit a blank to be placed upon the table between them, means operated by so placing a blank for releasing the holding means to permit the yielding means to cause the gages to engage and aline the blank, and means for thereafter operating the splitting mechanism.

'7. A machine of the class described having, in combination, splitting mechanism including a matrix and means for alining a blank with the matrix and for presenting the alined blank to the splitting mechanism, said means comprising a carrier movable toward and from the splitting mechanism, a table mounted on the carrier upon which the blank is placed, blank-alining gages also mounted on the carrier, means operated by movement of the carrier away from the splitting mechanism for moving the gages into spaced relation to permit a blank to be placed upon the table between them, and means operated by so placing a blank for causing the gages to engage and aline the blank.

8. A machine of the class described having, in combination, splitting mechanism including a matrix and means for alining a blank with the matrix and for presenting the alined blank to the .splitting mechanism, said means comprising a carrier movable toward and from the splitting mechanism, a table mounted on the carrier upon which the blank is placed, blank-alining gages also mounted on thecarrier, means operated by movement of the carrier away from the splitting mechanism for moving the gages into spaced relation to. permit a blank to be placed upon the table between them, means operated by so placing a blank for causing the gages to engage and aline the blank, and means for thereafter operating the splitting mechanism and for moving the table toward the splitting mechanism.

9. A machine of the class described having, in combination, mechanism including two matrices for splitting two blanks at a time, and means for alining the blanks with their respective matrices, said means comprising a table upon which the blanks are placed, and blank-alining gages, a set for each blank, normally held spaced apart to permit the blanks to be placed upon the table between their respective gages, and means operated by so placing both blanks for causing the gages to engage and aline the blanks.

10. A machine of the class described having, in combination, mechanism including two matrices for splitting two blanks at a time, and means for alining the blanks with their respective matrices, said means including a table upon which the blanks are placed, a pair of blank-alining gages for each blank, a latch normally holding the gages spaced apart to permit the blanks to be placed upon the table between their respective gages, push buttons adapted to be engaged and depressed by the blanks when the blanks are placed upon the table, and mechanism connecting the push buttons and the latch constructed and arranged to release the latch only when both push buttons have been depressed.

11. A machine of the class described having, in combination, splitting mechanism including a matrix roll and a patrix roll, a gage on the periphery of one of the rolls against which the leading end of a blank to be split is placed, means engaging opposite edges of therblank for alining the 5 blank with the matrix, and means for thereafter operating the splitting mechanism.

12. A machine of the class described having, in combination, splitting mechanism including a matrix roll and a patrix roll, a gage on the periphery of one of the rolls against which the leading end of a blank to be split is placed, means for rotating the rolls and for bringing them to rest with the gage in proper position to have the leading end of the blank placed against it, and means engaging opposite edges of the blank for alining the blank with the matrix prior to imparting further rotation to the rolls.

13. A machine of the class described having,

in combination, a knife, rolls for advancing a blank to the knife to cause it to be split, a carrier located above the rolls for presenting a blank to the rolls, said carrier being slidably mounted for movement toward and from the rolls, and

means for first raising the carrier into a position alining the blank with the matrix, said means comprising a table upon which the blank is placed with its end in contact with said end gage, blankalining gages normally held spaced apart to permit the blank to be placed upon the table between them, and means operated by so placing the blank for causing the gages to engage and aline the blank.

15. A machine of the class described having, in combination, a knife, a pair of rolls one of which is a matrix roll, means for rotating the rolls, means for causing the rolls to exert a yielding pressure upon a blank, means for temporarily relieving the pressure of the rolls as they arrive at blank-receiving position, a feed table, and gages for alining the blank with the matrix preparatory to presentation of the blank to the rolls.

16. A machine of the class described having, in combination, a knifeya pair of rolls one of which has a matrix, spring means for urging one of the rolls toward the other, means for rotating the rolls to cause a blank to be split by the knife, means for bringing the rolls to rest in blank-receiving position with the spring-pressed roll held away from the other roll a distance slightly less than the thickness of the blank to be split, a table upon which the blank to be split is placed, normally separated gages for alining the blank with the matrix, and means actuated by placing the blank on the table for causing said gages to close upon and aline the blank, preparatory to rotating the rolls.

17. A machine of the class described having, in combination, splitting mechanism including a knife and a pair of rolls one of which has a matrix, means for alining a blank with the matrix, said means comprising a table, normally separated blank-alining gages and means for causing the gages to engage and aline the blank when the blank is placed on the table, spring means urging one roll toward the other, means for holding said roll away from the other roll in opposition to the force of the spring a sufficient distance to permit the leading end of the blank to be readily grasped by the rolls, means for rotating the rolls to cause the knife to split the blank, and means becoming operative during the splitting operation to release the springpressed roll so as to cause the blank to be gripped more firmly at the end of the splitting operation and ejected from the splitting mechanism.

18. A machine of the class described having, in combination, means including a knife for splitting a sole-shaped blank into an insole member having an opening in its forepart and a sole member provided with a complementary projection, a chute to receive one of the members after it passes the knife, and means for directing the other member upon the one received by the chute so that the two members are in superposed relation.

19. A machine of the class described having, in combination, a knife, a pair of rolls including a matrix roll for advancing a blank to the knife, one of said rolls having a curved guideway in its periphery, a curved guide slidably adjustable in said guideway about the axis of the roll, a gage carried by the guide and extending above the periphery of the roll in position to have an edge of a blank placed against it, said guide having formed thereon a rack, and a rotary adjusting member carried by the roll and having a pinion in mesh with the rack.

20. A machine of the class described having, in combination, a knife, a pair of rolls for advancing a blank to the knife, one of said rolls being a matrix roll, a gage projecting from the periphery of one of the rolls in position to have an end of the blank placed against it, means for rotating the rolls, and a pusher for maintaining the blank in contact with the gage until the rolls have firmly grasped the blank.

21. A machine of the class described having, in combination, a knife, a pair of rolls for advancing a blank to the knife, one of said rolls being a matrix roll, a gage projecting from the periphery of the matrix roll in position to have an end of the blank placed against it, means for rotating the rolls, and a pusher for maintaining the blank in contact with the gage until the rolls have firmly grasped the blank.

22. A machine of the class described having, in

combination, a knife, a pair of rolls one of which is a matrix roll, means for rotating said rolls and for bringing them to rest in proper position to receive a blank, a blank carrier for alining the blank with the matrix and for feeding the blank to the rolls, means for moving the carrier toward and from the rolls, blank-alining gages and a pusher mounted on the carrier, and means actuated by movement'of the carrier for operating the gages and the pusher.

23. A machine of the class described having, in combination, a knife, a pair of rolls one of which is a matrix roll, means for rotating said rolls and for bringing them to rest in prop-er position to receive a blank, a blank carrier for alining the blank with the matrix and for feeding the blank to the rolls, means for moving the carrier toward and from the rolls, blank-alining gages yieldingly urged at all times to move into closed position, a spring-pressed pusher, and means operated by movement of the carrier away from the rolls for separating the gages and for locking the spring of the pusher, said means being operated by movement of the carrier toward the rolls for releasing both the gages and the pusher.

24. A machine of the class described having, in combination, a knife, cooperating rolls, means for rotating the rolls, a carrier on which one of the rolls is mounted, a pivot on which the carrier is mounted, a spring tending to swing the carrier about said axis, and a slide rod engaging the carrier to adjust it angularly in opposition to the force of the spring.

25. A machine of the class described having, in combination, a knife, cooperating rolls, means for rotating the rolls, a carrier on which one of the rolls is mounted, a pivot on which the carrier is mounted, a spring tending to swing the carrier about said axis, an adjusting rod slidably mounted in the carrier and extending transversely thereof, and means responsive to longitudinal sliding movement of the rod for moving the rod sidewise and thereby adjusting the roll carrier about its pivot.

26. A machine of the class described having, in combination, carriers mounted for pivotal movement toward and from each other about parallel axes, rolls rotatably mounted one on each carrier, a knife cooperating with the rolls, springs tending to swing the carriers about their pivotal axes, and slide rods engaging the carriers to adjust them in opposition to the force of the springs.

27. A machine of the class described having, in combination, two arms, pivots upon which the arms are respectively mounted near one of their ends, rolls rotatably mounted respectively in the arms at a distance from the pivoted ends, means for rotating the rolls, a knife cooperating with the rolls, springs tending to swing the arms about their pivots, and slide rods engaging the arms at localities more remote from the pivoted ends of the arms than are the rolls to adjust them in opposition to the force of the springs.

28. A roll for a splitting machine, said roll comprising a main portion and a removable section, a shaft to which the main portion is fastened, said shaft having a longitudinal bore and an intersecting transverse bore, a pin carried by the removable section and adapted when the section is in place to extend into the transverse bore in the shaft, said pin having in it a transverse bore which then registers with the longitudinal bore in the shaft, and a locking pin slidable in the longitudinal bore in the shaft and extending through the transverse bore in the pin to hold the section in place.

29. A roll for a splitting machine, said r011 comprising a main portion and a removable section, a shaft to which the main portion is fastened, said shaft having a longitudinal bore and an intersecting transverse bore, a pin carried by the removable section and adapted when the section is in place to extend into the transverse bore in the shaft, said pin having in it a transverse bore which then registers with the longitudinal bore in the shaft, a locking pin slidable in the longitudinal bore in the shaft and extending through the transverse bore in the pin to hold the section in place, and a spring acting upon the removable section to push it out when the locking pin is withdrawn.

30. A roll for a splitting machine, said roll comprising a main portion and a removable section, means for locking the removable section in place, and a spring acting to move the removable section out of place when the locking means is rendered inoperative.

31. A roll for a splitting machine, said roll comprising a main portion and a removable and replaceable section, said main portion having a cut-away portion to permit the section to be removed and replaced by moving it radially of the main portion from and toward the axis thereof, means for locking the section in place, and a spring acting to move the section out of place in a path radial to the axis of the roll when the locking means is rendered inoperative.

32. A machine for removing at a single cut from a sole-shaped blank having a grain side and a flesh side, an insole which is all flesh and has an opening in its forepart and an outsole which is part grain and part flesh and has a complementary projection having, in combination, a knife, a patrix roll and. a matrix roll adapted to receive the blank and advance it to the knife with the flesh side in contact with the patrix roll, means for permitting the matrix roll to yield away from the knife while preventing the patrix roll from so yielding, and means engaging opposite edges of the sole blank to aline it with the matrix and patrix.

CHARLES E. HOOD.

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