US1830604A - Assembling machine - Google Patents

Description

Nov. 3, 1931. HOLMGREN 1,830,604

AS SEMBLING MACHINE Filed April 1925 11. Sheets-Sheet 1 Nov, 3, 1931.

E. A. HOLMGREN 1,830,604

ASSEMBLING MACHINE Filed April 13. 1925 11 Sheets-Sheet 2 Fig.3. 1&7

Nov. 3, 1931. E, A, HOLMGREN 1,830,604

ASSEMBLING MACHINE F'iled'Apri-l 1925 1.1. Sheets-Shet s Fig.4. 0 $2 244 U Nov.3, 1931 E. A. HOLMGREN ASSEMBLING MACHINE Filed April 13, 1925 ll Sheets-Sheet 4 Nov. 3, 1931. E, HQLMGREN 1,830,664

AS SEMBLING MACHINE Filed April 13 1925 11 Sheets-Sheet 5 Nov. 3, 1931. E. A. HOLMGREN ASSEMBLING MACHINE Filed April 1925 1,1 Sheets-Sheet 6 Noy. 3, 1931. E. A. HOLMGREN 1,830,604

ASSEMBLING MACHINE Filed April 1925 11 Sheets-Sheet 7 Figll.

Nov. 3, 1931. E. A. HOLMGREN ASSEMBLING MACHINE Filed April 1925 ll Sheets-Sheet 9 Nov. 3, 1931. E. A. HOLMGREN ASSEMBLING MACHINE Filed April 1925 11 Sheets-Sheet 11 I I I f Patented Nov. 3, 1931 unifies stares CHINE-RY CGRPQRATION, or rsrnnsmnlnnw JEBSEY,,A CORPORATION or NEW JERSEY v "m ni ERIC Al ,nonivrsnnlv, or Lynn, imssncnusn r'rs,".assieivon TO UNITED snon, MA-

assnraistrus MACHINE Application filed April is, 1925. Serial No. 22,624.

The present invention relates to assembling machines, being especiallydirected to that type of apparatus disclosed in Letters Patent of the United States No. 1,667,948, Perry,

May, 1, 1928, for a machine for making soles. By this machine, a plurality of portions of the insole of a shoe, as a layer of fabric and a layer of leather ora substitute therefor, are taken from their respective holders; the

fabric first transferred to such forming means as dies, which produce upon it a sewing rib; and then the leather portion coated with an adhesive, transferred to the formed canvas, andv the two portions pressed together to give a complete insole...- The'purpose of my invention is to generallyimprove apparatus of this character, though it will be'evident that many of its features are by no means limited to insole-making machines,

A feature of my invention is found in the means by which the work-portions arev transferred from their holders to the means which is to operate upon them. Mechanisms are provided which are simple, certain in, action, accurate as to delivery, and which may readily be adjusted to act upon work of different size. I

Another feature of the invention-involves the freeing of the assembled work from the 80 pressure members which operate upon'it, to

prepare for discharge from the machine, the

support of the work after it has been thus freed, and its final ejection.

A further feature of my invention has to do with the operation 'upon the work-portions, the application of ihe forming and assembling pressure thereto. The duration of such pressure is controlled independently of the action of other instrumentalities under the influence of which the work com'es,-so no delay orother irregularity is introduced into the general operation of the machine. .Preferably, means which automatically controls a .the time during which pressure is applied is stopped for a variable period to lengthen or shorten the duration of the operation.

Other features of my invention will appear from the following description and be pointed out in the appended claims. The workholder employed for the fabric portions. and

front elevation;

the disconnecti g or time-controlling mechanism per .se, bothdisclosed herein, are respectively made the subjects of divisional applications filed MayT, 1930, Serial No. 450,537, and filed May 18, 1930, Serial No. 151,93.

Fig. 1 shows my improved apparatusin Fig. 2 is a horizontal section taken-just above the turret, on the line 2-2 of Fig. 1;

V Fig. 3' illustrates I diagrammaticallyv the heating circuit forthe'turret-dies; g

Fig. 1 is a horizontal section through the base on the line 1- 1 of Fig. 1

Fig. 5 is a vertical sectional detail onthe line5-5 of Fig. 4;

6 shows, in broken elevation, the magazine and transfer mechanism for the fabric sole-portions; r I,

, Fig. 7 is a sectional detail taken longitudinally through the sheave supporting the counterbalancing weight for the magazineplatform of the mechanism of Fig. 6;

Fig. 8 is a sectional top plan'view of the parts illustrated in Fig. 6; l f v V F ig. 9 shows the transfer device and immediately adjacent elements of the fabric magazine in side elevation;

Fig. 10 is a'front elevation of the magazine and transferring mechanism for the leather sole-portions; H i 1 Fig. 11 illustrates 1' the same elements viewed from above;

Fig. 12 is a sectional detail showing the fingers which advance the work-portions from the magazine of Figs. 10 and 11;

Fig. 13 is a broken side elevation of the magazine and transferring mechanism for the leather portions; l Fig.145illustrates, in elevation, the actuating mechanism for the feed-slide associated with thismagazine;

" Fig. 15 is a vertical sectional detail through the cementing mechanism;

' Fig. 16 is a perspective view of the deliv- 'eringmechanism actingbetween the cementing mechanism and the turret;

Fig. 17 shows the assembling dies in front elevation, with parts in section; Fig. 18 is an end elevation thereof; I 1

Fig. 19, a top planview of these dies; 7

Fig. 20, a transverse section on the line 202O of Fig. 19; I

Fig. 21.shows the time-controlling mechanism in side elevation;

Fig. 22 is a top plan view of said mechanism; and

Fig. 23, a horizontal sectional detail on the line 23-23 of Fig. 21.

As to its general organization, this machine is similar to that ofthe previously mentioned patent. A turret 25, rotatable about a vertical axis upon a frame 26 and best shown in Figs. 1 and 2 of the drawings, carries four lower combined rib-forming and'assembling dies 27 successively separated about the turret by angles of 90 degrees and having their work-receiving faces in substantially horizontal planes. Arranged to reciprocate vertically upon the frame above the turret are four dies for co-operation with the dies 27, one pair 28, 28 being for the purpose of forming ribs in fabric portions which are included in the soles, while a pair 29, 29 act to press the thus vformed elements and leather portions together to complete the soles. All the dies are so mounted that they may be changed to correspond to the size of the soles to be produced. The dies 28, 28 are situated at workstations A and B, and are of such contour as to operate, respectively, upon right and left soles. The dies 29, 29 are located at stations C and D, and are similarly arranged for the formation of therespective soles of a pair. The corresponding dies, that is, the rights and lefts of the two pairs, are separated from each other by 180 degrees, those of each pair being 90 degrees apart. The co-operating dies 27 are in a like manner arranged in pairs of rights and lefts. Carried at the lower portion of the frame is a motor 30, shown in the present instance as electric, which supplies power through clutch mechanism 32 controlled by cam mechanism 34 to alternately rotate the turret through 180 degrees, so that the pairs of dies 27, consisting of a right and a left, are successively presented at stations A, B and C, D for co-operation with the dies 28 and 29, and to reciprocate these last-mentioned dies to produce their forming and assembling effects. When the turret is in motion, the upper dies are at rest, and when the travel of the turret ceases, the reciprocation of the upper dies takes place. The upper section of the clutch mechanism is geared to the turret at 36 to produce its intermittent rotation, while the lower clutch-section operates, through gearing 37 and acentral shaft 7 38, crank mechanisms 40, which intermittent ly reciprocate together the dies 28 and 29.

The last-mentioned connections are through a mechanisinX (Fig. 4), which will. later be described. Now it need only be said that this mechanism X serves to control the time during which the dies28 and 29 are forced against the work upon thedies 27. Each determined distance.

B, and C and D, respectively, perform the same funclions and may be identical. Therefore, but one will be described in each instance.

Considering the fabric-ho1ding and .feeding means, and referring particularly to Figs. 6 to 9, inclusive, there is'supported at each of the stations A and B, upon a bracket 41 projecting from the main frame, a skele-r ton magazine-frame 42. Situated axially of the magazine and fixed in the frame below it is a vertical guide-rod 44, about which moves a sleeve 46' having fixed upon its upper extremity aplatform 47 for the support of the fabric work-portions F arranged in a stack. The platform, the parts which carryit, and the supported material are counterbalanced by a weight 48, which is hung upon a cord 50' wound about a sheave 52 rotatable upon the bracket 41. The oppothe work-pieces are removed therefrom, ele-- 1 vatingmechanism is provided, actuated with a mechanism T, which effects the transfer of the blanks from the magazine to the dies 27.

The elevating mechanism includes a pawl 58 engaging the teeth ofthe wheel 54 and piv-' oted upon a lever 60 fulcrumed upon the frame and forked to engage a sleeve 62 of the transferring mechanism, this-sleeve being arranged for reciprocation upon the rod 51. Movement of the sleeve occurs each time a piece is transferred from the magazine to the 'diesyand at the same time, through the lever 60,,pawl 58 and ratchet 54, the sheave is turned to lift the platform 47 through a pre- The extent of this feed is somewhat more than the thickness of one of the fabric pieces, so that the transferring instrumentality may always find the element which it is to engage somewhat above the level to which the transferring mechanism descends and therefore in position to receive firm contact. This excess of engaging movement of the transfer mechanism is permitted ,byfrictlonal connections between the ratchet-wheel and the sheave. The former work-pieces upon the platform.

has a sleeve 64 (Fig. 7) turning upon a spindle 66 projecting from the bracket 41, the adjacent faces of the sheave and ratchet engaging frictiona-lly. At the opposite end of the sheave is a thrust-bearing 68, against the outer side of which acts a sprin'gwasher 70, this, in turn, abutting against a split nut 72 clamped upon the sleeve. A nut and washer 74 upon the outer extremity of the spindle 66 hold all these co-operating elements against displacement. The force exerted by the washer is suflicient to cause the ratchet and sheave to normally rotate together. When, however, the platform is held against movement by the detent 56 and the transfer mechanism engages the top piece F upon the stack supported upon the platform, the sheave will yield under the pressure, yet offering such resistance as to insure firm contact between the work-portion and the element engaging it. Fixed to turn ustably below the pawl 58 a sto 'v-sleeve 75. This has an eccentric or flattened portion, over which the pawl moves without interference. If it is desired to check the upward feed of the fabric without stopping the other elements of the machine, this sleeve may be turned until its rounded portion comes opposite the pawl, lifting this from the ratchet-wheel so that, in the reciprocation of the pawl, said ratchet-wheel will not be operated, and the platform will remain at rest. This is of utility in testing and adjusting the apparatus, or upon completing the operation at the end of a period of use. To maintain the effect of the weight 48 in a substantially constant relation to the opposing force exerted by the stack of pieces F, as this varies with the number of pieces upon the platform, a compensating device is associated with the counterbalance. This is furnished by the form of the sheave, which has a spiral, stepped groove 76 for engagement by the turns of the cord 50 wound about it. The steps are of greatest diameter at the ends of the sheave, and least at the center. When the stack is at its maximum height, and therefore heaviest, the extremity of the cordbearing the weight will be at the outer portion ofthe sheave upon the highest step, while the extremity of the cord connected to the platform will be near the center of said sheave. As the platform rises and the weight falls, the relation will be reversed, the weightend of the cord descending the incline, and the platform-end risingat the opposite side. In this way, the leverage exerted is gradually oppositely varied, so that the effect of the weight is diminished and increased proportionately to the number of I Therefore, he normal force which the frictional device between the sheave and ratchet is called upon 65' to resist is kept substantially constant.

The work-portions F, which may be of difany one of a series of notches 90 in ferent sizes, corresponding to those of the soles into which they are'to enter, are correctly positioned in the magazines at stations A and B by verticalcontact-rods extending the entire height of the magazines and arranged in pairs 78, 7 8 and 80,80, these pairs being, respectively, at opposite sides and near the extremities of the heelv andtoe-portions. The rods are carried upon arms 81 pivoted at 82 upon the magazine-framet2, and are arranged to be moved together by a linkage 84 so proportioned that the shift in the position of one of the rods 78 will similarly move the companion'heel-rod, while the toe-rods 80 will have their [positions altered correspondingly; The settings ofthe rods are determined and maintained by a finger-lever 86 secured to "turn with one of the arms 81 and having a spring-pressed detent' 88 engaging a segmental plate 92 mountedupon'the lower portion of the maga-zine frame. Associated with the notches are sole-size designations, indicating the settings of the rods to give the correct positioning of the work-pieces in the magazine. 'This movement of the lever 86,

by'a pro-per proportioning of the arms and (Fig. 9). Upon each sleeve 62 is carried a horizontally extending hollow arm 100, at the outer end of which is a contact-head102 having in its under side three spaced openings 104. These openings are so related that they will co-operate with the fabric pieces F in the stack over areas extending transversely near the center and in proximity to the opposite ends. Into the arm opens a conduit 106, through which-a suction ismaintained. This conduit is preferably flexible, to permit movement of the arm 100, and includes a swiveled joint 108, which also facilitates this. The suction-head has imparted to it vertical movement into and out of co-operation with the top of the stack in the magazine,t0 engage and remove the terminal work-piece, and a corresponding movement into proximity with the die, to deposit the piece thereon, and then from the die praparatory to return to the magazine. It is also oscillated horizontally to effect such transfer from the magazine to the die, and the return forthe succeeding operation.' To raise and lower the head, the" groove in'the sleeve 62, which is engaged by the lever 60, also receives the forked end of a bell-crank-lever 110 fulcrumed upon an extension from the bracket 41. The other arm 112'to a lever 114 pivoted for horizontal movement andhaving a projection 115 entering a cam-groove in a rotatable disk 116. The connections to the lever 114 extend to both stations A and B, to simultaneously actuate the transfermechanisms T thereat. The disk 116 is fast upon the upper extremity of a shaft 118, which includes an inclined section, and which is geared at 120 (Fig. 4) to a horizontal shaft 122 j ournaled in the lower portion ofthe frame 26. The shaft 122 is rotated through the timing mechanism X. The suction-head is turned about its vertical axis through a gear-segment 124 fixed upon the sleeve 62 and having meshing with it a rack 126, sliding upon the magazine-support .and joined by a rod 128 to a bell-crank-lever 130 acting upon the transfer mechanisms of both stations A and'B. A projection 131 from the lever 130 enters a cam-groove in the upper face of the disk 116. Therelation between the cam and the connecting mechanisms, which respectively raise and lower and turn each suction-headfls such that said head is swung horizontally from the turret to the magazine; then-depressed until it contacts with the toppiece of fabric; raised to its former position; again turned until it is over the die 27 then at the, station; lowered to deliverthe transferred piece to the die and raised and returned for another transferring c.vcle. V

For the purpose of temporarily holding the workportions against the openings 104 of each head 102 for their elevation from the stack, their transfer and final release upon a die 27, the passage of air through the open ings is controlled by valve mechanism actuated in' the movement of the head. In the conduit 106, at itsjunction with the head, is a slot in which operates a valve-plate 132 mounted to oscillate upon a pivot 134. Ad-

:jacent to the conduit-connection, the head has a relief-opening 136. The plate 132 has two lobes, in one of which is an opening 138, while the other is imperforatel -VVhen the opening 138 is alined with, the conduit, so that this is in communication with the head 102, the relief-opening 136 is closed by .the plate. Vlhen said plate is swung in the opposite direction upon its pivot, the imperforate portion moves between the conduit and the opening in the arm to close this,-simultaneously freeing the relief-opening. Secured upon the pivot 134 is a small plate 140, slotted at its edge to furnish opposite contact-faces 142, 1-42,which, in the movement of the plate 132, may strike apin 144 projecting from the arm 100. The extremes of movement of the valve-plate, as has just been described, are determined by these contacts.

' A spring 146, extending between an arm 148 fixed to the pivot and the arm 100, acts to hold either of thecontact-faces 142 against the pin. Upon the opposite extremities of the plate 140 are contact- projections 150, 152.

,Vhen the head 102 is over the magazine, the

projection 150 is vertically alined with an actuating pro ection 154 rising near said magazine. Upon the descent of'the head for jection 1'50 strikes the projection 154, swinging the valve-plate 152 into position to open communication between the suction-conduit and head, and to close the relief-opening. This causes the air-current established through the head toihold the work-piece firmly against the openings-104, loss-of the suction effectedthrough the opening 136 being avoided by'itsclosure by the valve-plate.

7O engagement with the upper piece F, the pro- This relation continues until the descent of the head over the die27. Then the project1on152 contacts with an actuating projection 156rising from the frame adjacent to the turret.v Again the valve-plate is moved, this time to close the suction-conduit and' free .the relief-opening. This causes the release of the transferred piece from the head 102, it falling into place upon the die.

Each of the turret-dies 27 has .a groove 160 V (Figsa2 and 16) corresponding in form to the .SBWlIlg'llb which 1s to be moldedm the fabric-deposited by" the transferring mechanism T at stations A and B; and each of the co-operating dies 28 at these stations is provided with a rib or projection 161 (Fig. 1),

arranged to enter the depressions when the upper dies are forceddown by the crank mechanisms 40 and to cause the formation of the ribs To increase the rigidityof the rib and to makeeit conform more perfectly to the dies,heat is applied to the fabric during the molding operation. For the accomplishment of this, the lower dies are'provided'with electric heating units 162 (Figs.

.2 and 3) inserted in recesses in the turret adjacent to said dies. They are supplied with current in parallel through conductors 164, each side of the circuit terminating ata contact 166 carried at the periphery of the turret and separated from each other by 180 de- .greess To these contacts current is delivered through brushes 168. This supply, because of the extent of 1 he contacts 166, is effective only while the turret is at rest. this time being ret carries the dies 27 with the formed blanks upon them from stations A and B to stations C and D. r The holding and feeding means forthe leather blanks L (Figs. 10 to 13, inclusive) includea table 170 fixed to the main .frame at eachof the stations C and D, the i top of each table lying in a horizontal plane somewhat above the working face of the die 27 at the station. The blanks L are carried in a stack upon the table, vertically alined with one another at the side toward the turret by bars 172, 172 carried by a hori-- zontal bar 174, which is mounted upon a.

bracket 115 secured. to the main frame and furnishing at its top the table 170. Each of the bars ha t its lower end a yieldable portion 176 pivo ed the body of the bar and held normally in alinement therewith by a spring 178. Between the lower end of each portion 176 and the table is a space sufficient to permit the passage of the normal blank which is to be delivered, while ref ainvertical bars 180, 180, with their lower ends extendin close to the table and being mounted upon a carriage 182 movable in ways in said table to permit'tie adjustment of the magazine to varying widths of soles. The ends of the soles are positioned by vertical bars 184 mounted to swing upon bell-cranklevers 186 fulcrumed upon the table 170. To maintain the flat inner faces of the bars 184 parallel to each other for effective contact with the square ends of the blanks L, links 188 are pivoted to them and to the table. I provide for the simultaneous adjustment of the bars 180 and 184 in the proper relation as the soles to be received by the magazine varv in width and len th b 'oinin the carriage 182 to each of the bars 184 through.

lover-systems 18'!- so proportioned as to give the desired relative movement. Travel of the carriage is efiected through a projection 189 depending from it and entering a camgroove in the periphery ofa cylinder 190 secured to a shaft 192 journaled in the bracket 175 beneath the table. The shaft 192 is geared at 194 to an inclined shaft 196 rotatable in the bracket. At the upper end of the shaft 196, convenient for the operator of the machine, is crank 198 having a spring-latch 200 arranged for engagement with any one of a circular series of openings 202 formed in a plate 204, which extends from the outer vertical face of the bracket. Size designations appear upon the plate, corresponding to the settings of the magazinebars by the crank anu actuating connections which give the correct dimensions of the magazines.

The bottom blanks of the stack in each of the leather-portion magazines are advanced Each slide is movable in a slot in the table and supports a contact-finger 208 (Fig. 12) pivoted at 210 upon the slide and held with its work-engaging end yieldably raised by a spring 212 seated in a recess in the slide. A. stop-screw 214 at the opposite side of the pivot from the spring adjustably limits this movement. At the inner end of the finger is an inclined surface 216, the inner and outer extremities of which are respectively normally below above the lower face of the bottom blank in the magazine. The surface 216 terminates at its outer end in a vertical wall 218, the height of which is somewhat less than the minimum thickness of the blanks to be fed. As the fingers are carried by their slide across the table, the lower portions of the inclines 216 lie always below the supporting surface of the table, and therefore below the bottom of the lowest blank in the magazine; and as thesurfaces 216 engage the under face of the blank, they yield until the vertical surface 218 contacts with the edgeof the blank. This, in the continued movement, is forced from beneath the stack over the table from the magazine. The fingers thus accommodate themselves unfailingly to irregularities in the sole-edges. Each slide is reciprocated to produce this feeding movement by an arm 220 (Fig. 13) forked to engage block 222 arranged to turn upon the slide, the lower end of the arm being fixed to bracket and having a projection 232 entering a cam-groove in a disk 234 fixed upon a shaft 236 journaled in the frame. The shafts 236 at stations C and D are connected by bevelgearing 238 (Fig. 13), while spiral gearing 240 joins one of the shafts 236 to an inclined shaft 242 actuated through bevelgearing 244 from the shaft 122 (Fig. 4). To allow the reciprocation of 1 he fingers to be discontinued and thus render the feeder ineffective while the machine is still in operation, a pin 246 uniting the arm 226 and connecting-rod 228 may be rotatable in the arm and arranged to be fixed in different angular positions. Its cylindrical portion enters a notch in the connecting-rod to produce the feeding effect,

while a cam-portion 248 may, when desired, be turned into engagement with the under side of the connecting-rod, thus lifting the latter to separate the depression from the pin and disconnect the arm 226. At this time, the generally horizontal under edge of the c0nnecting-r0d rides upon the cam-portion. Thus the feed of the blanks L may be discontinued, similarly to the blanks F.

The fingers 208, in their reciprocation, feed the lower blanks at stations 0 and D, forward across the tables 170, being here shown as delivering to an apparatus for apthe section 262 at a constant level.

plying to the leather portions a cement or other adhesive. The dehvery-surface 1s horlzontally alined with the bite of a lower ap-- plying rolli250 (Figs. 13 and 15) journaled horizontally in'the upper part ofthe bracket ing to accommodate the pressure to work of Beneath this palr of 7 different thicknesses. rolls 'is a platform 260 for the support of a removable cement-receptacle having two sections 262 and 26%. In the former operates a feed-1011266, journaled in opposite bell-crank- levers 268, 268, each having an arm held by a spring 270 against a stop-screw 272. Adjustment of these screws raises and lowers the feed-roll, so that it may be caused to deliver different quantities of cement to the applying roll. The receptacle-section 264 communicates with the associated section through an opening 274 furnishing a barometric feed, which maintains the cement in The section 262 of the receptacle fits against a casingsection 274 fastened upon the bracket 175, and the supporting platform of the receptacle is arranged for movement to force the receptacle into contact with the casing-section, thus partly sealing it to reduce evaporation of the solvent, or to lower it to facilitate removal. For this purpose, the platform is carried upon four bell-crankdevers 2T6 fulcrumed upon the bracket and joined by pairs of links 278 (Fig. '10). These, in turn, are linked at 280 to a bell-crank-lever 282 fulcrumed below and at one side of the receptacle. Pivoted upon the outer arm of the lever 282 is a handle 28% having a latchmitting the platform and receptacle to fall into a position at which the latter may readil be removed. To rotate the rolls of the applying apparatus, the shaft 236 is joined by sprocketgearing 290 to a short shaft 292, rom' which a chain 2% of spur-gearing drives the rolls in the directions indicated by the arrows in Fig. 13. i

When the coated blank emerges from the applying apparatus at each of the stations C and D, it is received by a transferring mechanism U, which delivers it to the particu lar die 27 which is at the station. This transferring mechanism is so organized as to position blanks of different sizes incorrect relation upon the formed fabric portion borne by the die. Just below the bite of each pair, of rolls 250, 252,'and arranged to reciprocate from a point adjacent to said rolls into proximity with the die 27 resting at the station at which these rolls are located, is a carrier .300 (Figs. 13 and 16) consisting of a plate, upon which are secured contact-strips 302.

These strips offer reduced edges, which disturb but little of the coating upon the blanks as said blanks are passed over them. Arms 30%, 304 are attached to a horizontal shaft 306 turning below the table 170 and pivotally support the carrier, the latter being maintained horizontal during its reciprocation by a link 308 pivoted at 310 upon the frame, or other point fixed relatively to the link, and having pin-and-slot connections at 312, 312 with one of the arms 30 i and with a lug 314 depending from the carrier. The reciprocation of the carrier through a constant distance, from a receiving to a delivering position and the reverse, is effected by oscillating the shaft 306 through an arm 316 fast there on, and having a. projection 318 entering a cam-groove in the inner face of a disk 320 secured to the shaft 236. Flexible supports, in the form of leaf-springs 322, of which two are illustrated, project forwardly from the carrier between the strips 302, preferably extending overflthe die 27, in the forward position of the carrier, at least as far as the groove 160. These supports, when the soleportion L is finally delivered to the die, prevent its forward. edge from catching in the groove in the formed canvas and thus interfering with its correct placing. The spring material of which they are made'allows them to yield upon contact with the die as the carrier 300 is swung forward and down toward said die.

The blank is pushed from its carrier 300 upon the die by delivering and positioning fingers 324, 324 curved toward the rear and then somewhat forward in the direction of the die. Each finger isfixed to a short horizontal shaft 326 rotatable at the upper extremity of an arm 328 free to turn about a shaft 330 journaled parallel to the carriersupporting shaft 306. Fixed to the shaft 330, adjacent to each arm 328, is an actuating arm 332. This exerts 'a positive effect upon the arm 328 in one direction by contact of an overhanging portion 334:. The arm 328 is yieldable in it's travel in the opposite direction against the tension of-a spring 336, which is connected at its opposite extremities to the arms 328 and 332. This arrangement permits a difference in the extent of movement of the respective pairs of arms, so that after the fingers have come to rest, the forward movement of the actuating arms may continue; The shaft 330 and arms 332 are oscillated by an arm 338 secured to the shaft and provided with a projection 340 entering a cam-groove in the outer face of the disk 320.

The extent to which the two fingers assoset by the crank 198 simultaneously with the .magazine-bars and providing for the same size-changes. Each stop-disk has five steps, one for each of the crank-retaining. openings 202, and the two disks are fixed upon opposite ends of a shaft 344. Bevel-gearing 346 connects the shaft 344 to the shaft 196 carrying the crank 198. lVith the stop-surfaces of the disks contact screws 348 threaded through arms 350 formed with the arms 328. When the operator sets the cranks 198 at positions C and D for a change in the size of the blanks to be fed from the magazines, a like setting of the disks is effected, so the extent of movement of the delivering fingers 324, 324 is similarly altered to symmetrically place the blanks upon the dies 27. Adjustment of the screws 348 provides for different travel of the fingers at the heel and toe-portions of the dies.

The lingers 324 not only travel with the carriers in a movement of translation byvirtue of the oscillation of the arms 328 and 332, but are also turned by the shafts 326 to more ef ectively deliver the blanks from the carriers upon the dies. The shafts 326 are mounted to rotate together, while being relatively movable transversely of the carrier, by a shaft-section 352 (Fig. 11) including universal joints 354. Attached to one of the pair of shafts 326 is an arm 356, to which is articulated a link 358 guided by a slotin it which receives a projection 360 extending from the frame. A spring 362, joining the projection and link, exerts its force to turn the fingers into a forward or delivering position. A. pin 364, projecting from the outer side of the arm 356, by contact with the link 358, limits the movement of the fingers in this direction. N hen the carrier is positioned adjacent to the cementing aparatus for the purpose of receiving the coated blank therefrom, the fingers are'moved outwardly and upwardly, to leave a space between them and the carrier into which the blank may be delivered by the rolls 250 and 252. This is accomplished by a projection 366 (Fig. 16) from the inner side of the arm 356, which projection engages, in the location of the carrier just mentioned, a contact member 368 fixed upon the frame. The position assumed l by the fingers under the influence of this contact device is best illustrated in Fig. 13 of the drawings.

A leather blank L, having been fed from' H its magazine by the fingers 208 to the rolls 250, 252 and coated thereby upon its lower side,

is delivered by said rolls to the carrier beneath the raised fingers 324. A cam of the disk 320 thereupon swings the carrier toward the die Y until the spring-supports 322 project over it. At the same time, the fingers 324 travel with and over thecarrier, forcing "the blank from the latter upon the die. The carrier then retreats, the lingers temporarilyretaining the blank to avoid disturbance of its position when'the spring-supports are withdrawn, and finally leave it correctly positioned for the assembling operation. r

The leather blanks having been placed upon the fabric portions carried by the dies 27 the,

dies .29 descend under the influence of the crank mechanisms to force the two layers together. F or this purpose, each of the dies 29 has a horizontal pressure-surface corresponding to the like surface of the dies 27. The setting of the adhesive is facilitated by heating of the dies 27 through the electric units 162. If it is desired to produce in the work openings spaced from one another in the heel-portions of the leather blanks for locating the completed soles in succeeding shoemaking operations, these openings may be formed positions (l and l) by punches 370 (Figs. 17 a.1id20)' carried by the dies 27 and operating a ainst anvils 372 mounted upon the dies 29. The anvils are preferably in the form of plungers of relatively .soft metal movable in casings 374 secured side by side upon the upper face of each of the dies 29. Within the casings are springs 376 interposed between the tops of the plungers and the lower extremities of screws 378 threaded into the casings. These springs yieldably hold the anvils to receive the cutting action of the punches, and the resistance to displacement of the anvils may the vertical positions of the screws. v

For the release of the completed sole from the groove in each die 27 after the co-operating die 29 has been raised, the la ter has, fulcrumed for horizontal movement and transversely alined at its toe and heel-portions, respectively, Where it extends beyond the edge of the die 27, lifting members 380, 380 and 382, 382, respectively (Figs. 17,18 and 19). These pairs of members are arranged'for movement beneath the edge of the sole-material overhanging the periphery of the die 27. They are shown in the form of bell-crank-levers,

the long arms of which are. arranged to engage the sole, while shorter arms of each pair extend toward each other. To each lever is articulated a rod 384, thote of the members 380 passing through openings in projections from opposite sides of a bell-crank-lever 386 fulcrumed for oscillation in a vertical plane'upon a bracket carried by the die 29, The rods of be adjusted by change in its connect-s arms 395; upon thefulcra of the levers 386 and 388, to cause them to move to-' gether. Joining the link and the upper por? tion of the die 29 is a spring 396, by-which the outward or work-dropping position of the members is normally maintained.

, above the turret, is a link 398. Threaded upon the link above the bracketis a'nut 402,

which, by its contact with said bracket when the die 29 is lowered, swings the'levers 386 and 388' to carry the members 380 and 382 inwardly into their work-engaging relation toward the die. The time of the engaging movement may be altered by adjusting the nut 402 upon the link. The members are temporarily held in this position against the tension of the spring 396 by a latch 404 (Fig. 18) movable in a' horizontal casing 405 upon the end of the die 29 adjacent to the lever 386, and forced by a spring within the easing into the path of said lever.. As the die 29 rises, carrying the completed sole with it resting upon the members 380, 382, the latch 404 is drawn back to release the members and free the sole by a vertical contact-bar 406 clamped upon the bracket 400 just at the inner side of the link 398. 'The lower end of this bar is beveled, and, in the elevation of the die, receives contact of the head of the latch, withdrawing it to release the lever 386. This permits the spring 396 to act, drawing the members out much more rapidly than they are moved into their engaging relation, so that the freed sole drops back loosely upon the die 27 immediately after the die 29 leaves it. This occurs at both stations C and D.

The soles having thus been released from the grooves in the dies 27 ,they are to be discharged from the machine, the left soles completed at station'C being kept separate from the right produced at station D. Between stations C and D is mounted upon the main frame a spring ejector 410 (Fig. 2), and between stations D and A, a similar" device 412. Each of these has a contact-end lying in the path of the dies 27, and so related that it will engage the detached soles carried by them.

To move the ejectors against the soles, they are tensioned and released by the wiping engagement ofactuating projections .414 rising vertically from the turret at the inner sides of the dies 27, and so located radially that, asthey pass the springs, they will bend them back and free them to strike and throw the soles outward, clear of the machine, Each projection has secured to 'it a light spring supporting member 416 (Figs ll and 18 This, extending toward the associated die, serves to hold the inner edge; of the soles raised and dropped by the members 380 and 382, guarding said soles against ,fallingin by the ejecting springs.

positions in which they will not be engaged To avoid the actuation of the ejector 410, when the right dies rat-her than the left are passing, it is pivoted at 418 for vertical movement, and has an arm 420, which contacts with the upper cam-edges of bars 422 fixed at opposite sides of the turret and associated with the right dies in such a relation circumferentially of the turret that the arm420 will contact with one of them ust as the projections 414 opposite said right dies are passing the springs 410. This ejector will therefore be raised and not actuated,

being effective only when the projection belonging to the die upon which it is to act reaches it.

Considering the driving systemof the ma chine, the motor 30 is shown as belted to a counter-shaft 430 (Fig. 4) journaled at the bottom of the frame and having fixed to it a fly-wheel 432. Current is delivered to the motor through a switch enclosed in a casing 434 (Fig. 1), and opened or closed by connections at 436 to a hand-lever 438 pivoted upon the frame. A like hand-lever at the opposite side of the machine is joined to 438 by a lever-and-link system 440. Simultaneously with the opening and closing of the motor-circuit, a brake-band 442 (Fig. 5) is respectively drawn against or released from the fly-wheel by a link 444 articulated to the lever 438 and operating the brake-band through toggles 446 and 448. Therefore, when the lever 438 is raised to close the switch, the brake-band is simultaneously released to free the fly-wheel, and when said lever is lowered, the brake is applied to the fly-wheel. A treadle 450 may be included in the leversystem, connecting through the toggle 448 with the band 442, so that the brake may be applied independently of the movement of the hand-lever. Worm reducing gearing 452 transmits power from the countershaft to a shaft 454 rotatable about a vertical axis in the frame, and to which is secured the driving member of the clutch'mechanism 32. The upper driven section of the clutch mechanism isgeared to the turret at 36, while the lower driven section which rotates the crank mechanisms 40, cam mechanism 34 and engagement with the teeth. A spring 468, 7

extending from an inner arm of the key to the on er face'of the disk 464, exerts a force tending to so rotate the key that it will come into the path of the teeth to connect the driving member 462 with the driven member 464. The key is normally held disengaged from the disk 462, so that the disk 464 and shaft 122 are at rest, bya stop-bar 469 arranged to move into the path along-which travels .a tail 471 of the key. The stop-bar projects from one end of a shaft 470 rotatable within a sleeve 472 (Fig. 23) journaled in a bracket 474 mounted upon the frame. At the opposite extremity of the shaft 470 from the arm is a head 47 6 having a peripheral projection 47 8 (Fig. 21). A spring 480, joining the stopbar 469 to the bracket, draws a projection 482 upon the stop-bar into engagementwith the bracket to determine the position of the end of the bar in the path of the key-portion 471.v Extending radially from a sleeve 484 turning upon the sleeve 472 is an arm 486 having a screw or other projection 488,which may be inserted in any one of a series of openings 490 formed in a plate 492 rising from the bracket parallel to the arm. En agement of the projection with one or another of the openings alters the angular relation of a stop-projection 494 lying at the inner side of the arm 486 and serving to variably determine the normal position of a timing disk 496 fixed to the outer extremity of the sleeve 472.

A helical spring 498 surrounding the sleeve 484 is secured at 500 and 502 to'the arm 486 and the disk 496, respectively, and acts to draw a projection'504 at the inner side of the disk toward the stop-projection 494. Upon the outer face of the disk 496 is an actuating projection 506, which, when said disk is turned in an anti-clockwise direction, as

viewed in Fig. 21 of the drawings, will strike the projection 47 8 upon the head 476, turning the shaft 470 to raise the stop-bar 469. This releases the key 466, allowing it to turn into engagement with the traveling teeth of the disk 462 to drive the shaft 122. Uponthe periphery of the disk 496 are two sets of ratchet- teeth 508 and 510. With the first of these co-operates a pawl 512 yieldable upon the generally vertical arm of a bell-cranklever 514 fixed to a shaft 516 rotatable in the bracket adjacent to the shaft 470. A horizontal arm of the lever 514 has a projection 518 operating ina cam-groov'e'in the outer face of the disk 462. This groove is so formed that, in the continuous rotation of the disk, the lever is constantly oscillated,

to move the pawl 512 into engagement with the teeth 508. A retaining detent 520 for engagement with the set of ratchet-teeth 510 terminates one arm of a bell-crankdever 522 mountedto turn about the shaft 516, the other arm of which lever carries a roll 524 for contact with the periphery of the clutch-disk 464. A spring 526 acts to simultaneously draw the detent against the ratchet-teeth and the roll into contact with the disk. For the greater portion of the arc of contact between the roll and disk, the circular contour of the latter is unbroken. This so positions the lever 522that the detent 520 is out'of co-operation with the ratchet-teeth 510. During this period,'the pawl 512, in its oscillation,'1mparts a corresponding idle oscillation to the disk 496. A relatively small peripheral portion of the disk 464 is depressed, as appears at. 528 in Fig. 21. When the roll 524'arrives at this depression, the spring 526 draws the detent into engagement with the ratchetteeth. Now when the pawl512 acts upon the disk, each oscillation causes said disk to ad-' vance a step, this being held by the'detent. The movement continues until the diSk-pro-' jection 506 strikes the headprojection 47 8, lifting the stop-bar 469 to release the clutchkey and produce rotation of the shaft 122, as previously described. The roll 524 then rides out of the depression, releasing thev disk1496.- from the detent, and permitting the spring 498 to act to return the projection 506 to its position against the projection 494 upon the adjusting arm; Since, however, the portion 471 of the key has left the stop-bar, rotation of the disk 464 and the driven shaft continues, during this interval the pawl producing its idle oscillating movement of the timingv disk. After the driving disk 462 hasmade one turn, the key arrives at the stop-bar 469 to release the disk 464 and stop the shaft 122, while the depression 528 also reaches the roll 524 to initiate another timingaction ofthe mechanism. Itwill be seen that the length of the interval during which the clutch-elements are" disconnected and the shaft 122 is at rest, depends upon the position of the arm 486, since this determines the initial position of the projection 504 and the are through which the projection 506 must move to release the clutch key from the stop-bar. The manner in which the stoppingand starting of the shaft 122 by the mechanism controls the movement of the work andthe time of application of pressure by the dies will be hereinafter described. r

A brief outline of the general operation of the machine willnow be given. Let it be assumed that, at the completion of a cycle, the turret is at rest,'bearing upon the dies 27 at stations A and B, canvas blanks F, in which-the sewing ribs have been molded, while completed soles have been produced upon the dies 27 at stations C and D. At the beginning of the succeeding cycle, the cam mechanism 34 causes the engagement of the upper section of the clutch mechanism 32, the lower section being disengaged. This upper section drives the turret through the gearing 36, so that it moves through 180 degrees. carrying one of the dies 27 from each. of the stations A and B to the stations (l and D, and causing these at stations C and D to move to stations A and B. From the last-mentioned dies, the finished soles are thrown off.

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