US2659908A

US2659908A - Means for applying platforms and turning the toe ends of platform covers

Info

Publication number: US2659908A
Application number: US148652A
Authority: US
Inventors: Paul W Senfieben
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1950-03-09
Filing date: 1950-03-09
Publication date: 1953-11-24
Anticipated expiration: 1970-11-24

Description

Nov. 24, 1953 P. w. SENFLEBEN MEANS FOR APPLYING PLATFORMS AND TURNING THE TOE ENDS OF PLATFORM COVERS Filed March 9, 1950 7 Sheets-Sheet l Nov. 24, 1953 P. w. SENFLEBEN ,908

- MEANS FOR APPLYING PLATFORMS AND TURNING THE TOE ENDS OF PLATFORM COVERS Filed March 9, 1950 7 Sheets-Sheet 2 Inventor Paul WSenf/eben By has Attorney NOV. 24, 1953 P, w, SENFLEBEN 2,659,908

MEANS FOR APPLYING PLATFORMS AND TURNING THE TOE ENDS OF PLATFORM COVERS Filed March 9, 1950 '7 Sheets-Sheet Z5 Nov. 24, 1953. P. w. SENFLEBEN v2,659,908

MEANS FOR APPLYING PLATFORMS AND TURNING V THE TOE ENDS 0F PLATFORM COVERS Filed March 9, 1950 7 Sheets-Sheet 4 P i ya 24 .a

Inventor Paul W Sen/[Eben Nov. 24, 1953 P. SENFLEBEN 2,659,908

' MEANS FOR APP NG PLATFORMS TURNING THE TOE ENDS OF PLATFORM ERS '7 Sheets-Sheet 5 Filed March 9, 1950 Inventor Rm! WSen/Zeben By his Attorney P. W. SENFLEBEN MEANS .FOR APPLYING PLATFORMS AND TURNING Nov. 24, 1953 THE TOE ENDS OF PLATFORM COVERS 7 Sheets-Sheet 6 Filed March 9, 1950 ||||||||1|||1|||||||||| 1| ili ll lllllllllll l l l lllll ll'lllll P l l ll lm |l||| II III IIII" fizz/en tar" Paul W Senfleben. By his Attorney II I II I II INN v sww/ Nov. 24, 1953 P. w. SENFLEBEN 08 MEANS FOR APPLYING PLATFORMS AND TURNING THE TOE ENDS OF PLATFORM COVERS Filed March 9, 1950 '7 Sheets-Sheet 7 C 656 :330 P Fla 24 3 Z si I I I f/(lygtl W2 04 m C I J70 a U N 92 36a 376 352 v d r 74 .5- r 6 //Z 3% .37 22 362 I N /06 J u J 64 f A 26' fm/enzar 54 Paul wsen/zeben his A: iomey Patented Nov. 24, 1953 UNITED sTATE-JS 2559,9082 MEANS FOR; AIFLYING PEA/'EFGRMS AND TURNING} THE TOE ENDS 01B PLA'lll-:

FORM GOVERJS 13'' Claims.

This invention relates to machines for use in the manufacture of shoes and itis herein disclosed as embodied in-a machine for adhesivelv: incorporating platform units: into partially com,- pleted shoes and also for turning the toeportions of; the. platform. covers ofl'suchshoes. Some of the instrumentalities ofthe machine shown here iIiWhiGhaIe used in connection with the adhesiveattaching of the platform units are, similar tocorresponding instrumentalities disclosed in United statesljetters Patent No. 2,623 ,22'3; granted December 30, 1952'. on my. copending applicae tion.

the manufacture-of platform shoesitis a simple, matter to turn the heelend of the platform cover into right side out position before (rather than after) the. attaching ofthe platform unit; andthen to: attach. the platform unit before" (rather than after) the turning of" the toe end of, the platform cover.-

It is: an objectof the present invention to pro-, videa machine. for performing the operations above mentioned, except the turningof the heel portion of the platform cover, with a minimum ofhandling of the shoe. To this end; and in accordance with a feature of the invention the illustrated machinecomprises a. guideway along which a shoe support is' movable between two stations; with means at one. of the stations for facilitating the attaching of the platform uni andmeans at the other station for'turriingthe the portion of the platform cover. This same giiidet'v'ay. is utilizedalsoj to permitthe shoe sup"- port to be"movedtoewardlywhile' the heelj'portio'nj ofthe platform cover is held" back to facilitate the laying oi the platform unit. in proper positioj'n" upon the sock lining. After the platform unit is'thus 1aibl,,it is oem'ented'to the sock lining hythe' application of pressure. Thefshoesupport is, then slid along" theguidewav to'bring" the toe end" of the shoe into operative relation to" the platform cover turning. instrumentalitiesi These and other features'of'thef invention; ineluding detailsof. construction, will now be more particularly described. with reference to the acc'o'thpanying" drawings, in which Fig; l is a front". elevation of the head of" a machine embodying the invention; V

F"; 2"'is a plan view of a part otthemechanism' shown in Fig. 1;

Fig; 31s a plan view of a' device for forming the heel portion of the platform cover of a shoe;

Fig; 41s a section taken on the line IV.-.IV of F 1; i

Fig, 5 is an angular view ofa shoe support;

2, Fig. 6 is a sectional View taken on? the, line VI-=VI of Fi 1; A Fig. '7' is a view of the parts shown in Fig; 6 looking in the direction of thearrow A; Fig. 8'is a front elevation of a portion ofthe' machine showing a platform unit being pressed upon the sock lining of a shoe;

Fig". 915 a front elevation of a portion ofthe machineshowing the toe portion of the platform cover being turned;

Fig. 10 is an end elevation showing the'jdevi'c'e for turning the toe endj ofth e platform coyer;

Fig. 11 is a sectional detail viewshowing' how the the end of the platform cover is turned";

Fig; 12 is a sectional detail view showing. the position of the toe end of the" platform" cover after it has been turned;

Fig; 13 is a front elevation of' a modified form of the machine; h

Fig. 14 is a plan view'of the mechanism shown in Fig; 13; i I b Fig; 15 is a front elevation of therna'ehine shown in Figs. 13 and 1 t illustrating theioperae tion' of forming the heel portion of theplaitf'orfii cover; and i i Fig. lb is an angularview of theturninghoi n li'scdfinboth forms of themachine.

The machine illustrated herein is shown} as operating upon a partially completed-platform shoe of the'open toed' and'open heeieu typ cbm sistin' of an upper U, a platform cover C, and a sock lining s'unitedby stitching ancl niounted up on'an'invertedlastL (Figs. 1, lli and-12); 'Ifhe heel end of the platform cover has already heeii turned. up to form a' pocket; the'tbe'endi'sjstill downinwrong side outposition; 'lfhe' operations to bejperfbrmed'consist' in preparing the s hoefor the" laying of a platform unit (Figs; 8,. 9'; 1'3, 14; and I5 in'proper position upon" the sock; lining; in applying pressure to the platform unit tbcaus'e preceinent'ed surfaces of the platform d th $0 if' to dhe e; n in i f th w? portionof the platform cover to right side out pqs ion; T orm ni Pm c s s D iz i fi lrll of cork compositionf or other" suitable material and may include aIsoaEwoodheelI-l at. tachedtpthe'platform by staples S t, asFshoW-nin Figs. 9'; l4; and15', or, attached by cement or other means: The heel maybe made integral-iwithtli'e platform in some types of shoes; or it-nia'y' b'e ornitt'edi 4 The operating instrumentalities" of the" illiis tr'ated machine consist of a shoe support 2'0( Figs; 1; 53 8, 13v and l5-)- movablealong" an iind ercut g uideway ZZKFigs. 6,'8"and 15 a device 24 (Figs,

1, 8, 8 and for centering the shoe, mechanism 26 (Figs. 1, 8, 13 and 15) for moving the shoe support toewardly along the guideway, alternative devices 28 (Figs. 1 and 3) or 30 (Figs. 1 14 and 15) for holding back the heel portion of the platform cover while the shoe is being moved toewardly, a device 32 (Figs. 6', 7 and 8) for pressing the platform unit upon the sock lining to cause adhesion, and a device 34 (Figs. 1, 9, 10, 11 and 13) for turning the toe portion of the platform cover. The term toeward is used herein to denote the direction from the heel of the shoe, when mounted on the machine as shown, toward the toe of the shoe; and the term heelward is used to denote the reverse direction. The supporting structure of the machine comprises a column 38 adapted to rest upon the fioor and to support a rigid head or frame 38 in which is formed the guideway 22.

The shoe support 20 includes an upstanding last pin 40 (Figs. 1, 5 and 13) and a toe rest 42 (Figs. 1, 6, 8, 9, 13 and 15). The last pin 40 has a colla 43 for supporting the cone of the last, and is secured in a block 44 having side flanges which are arcuate for engagement with an arcuate guideway formed in a block 48. The axis of this guideway is horizontal and transverse to the guideway 22 and it intersects the axis of the last pin 40 at about the level of the heel seat of the last L. The arcuate side flanges of the block 44 are retained in the arcuate guideway by overlapping portions of arcuate retaining strips 48 secured to the block 46. The block 44 (Fig. 5) is urged yieldingly in a heelward direction in its arcuate guideway by a coil tension spring 50, the heelward limit of movement of the block being determined by a stop 52 adjust ably clamped to the block by a screw 53' and having a laterally extending lug engageable with a forward face of the block 46. The block 48 has a downwardly extending tongue 54 which slidingly engages a. transverse groove formed in a slide 58. This slide 58 is freely slidable by hand along the guideway 22, and it can be urged toewardly by a treadle operated mechanism, later to be described, which acts on a pair of antifriction rolls 60 which are mounted for idle rotation upon a pair of pins secured in alined bosses 62 extending transversely from the block 46.

The toe rest 42 (Figs. 1, 2 and 15) comprises a cylindrical pad of rubber mounted upon a horizontal transverse pin 64 which is carried by a yoke 66. The rubber pad 42 does not rotate while in operation but it clamped in a fixed position from which it can be unclamped to permit turning to bring a fresh portion into workengaging position. The yoke 68 has a depending stem 68, the lower portion of which is threaded and which slidingly engages a nonthreaded bore formed in a boss I0 upstanding from a slide I2. A knurled nut I4 threaded upon the lower portion of the stem 68 rests upon the upper end of the boss I0 to adjustably determine the heightwise position of the toe rest pad 42. Turning movement of the pad is prevented by a screw I8 (Fig. 15) threaded through the wall of the boss 10 and having a reduced end which loosely engages a heightwise slot I8 formed in the stem 68. The slide I2 is slidable along the guideway 22 and is yieldably connected to the slide 58 by a coil compression spring 80 surrounding a longitudinal rod 82. The ends of the spring 80 bear respectively against the slides; the rod 82 is secured to the slide I2 and extends slidingly through the slide 58. As shown in Fig.

5, the tongue 54 of the block 46 is recessed to provide clearance for the rod 82 as the block 46 moves laterally. A head 84 formed on the heelward end of the rod 82 and engaging the heelward end surface of the slide 58 retains the slides I2 and 58 in their normal position of maximum separation. The purpose of thus yieldably connecting the slide I2 to the slide 58 is to permit advance of the shoe toewardly beyond the locality at Which the slide I2 is stopped by the interference of other parts of the machine.

The centering device 24 comprises a plate 86 (Figs. 1, 2, and 13) in which is formed a V-shaped notch (the apex of which is blunted) having a pair of converging cam surfaces 8'! for engagement with the heel end of the shoe or of the last upon which the shoe is mounted. This plate 86 is mounted upon a pair of coaxial pins 88 carried by a pair of cars 90, the plate having a limited freedom of self-adjusting tilting movement heightwise about the axis of the pins 88. The

ears 90 extend from the forward ends respectively of a pair of parallel slide bars 92 which are guided for longitudinal movement in a pair of bearings 94. The heelward end portions of the slide bars 92 are rigidly connected by a cross bar 98 to insure movement of the slide bars in unison. Surrounding each of the slide bars 92 and bent over the heelward end of the plate 86 is a washer 98. These washers constitute abutments for a pair of compression springs I00 which surround the slide rods 92 respectively and which bear against the toeward ends of the respective bearings 94. The bearings 94 are integral with a block I02 which carries transverse trunnion pins I04 upon which the block I02, the slide rods 92, and the centering plate 86 are fulcrumed for heightwise tilting movement, the trunnion pins I04 being journaled in a pair of slide walls I06 of a stationary bracket I08 secured upon the heelward end of the head 38. Integral with one of the bearings 94 is a depending web IIO having a lug II I through which is threaded a stop screw H2. The end of the screw II2 bears against an abutment surface I I4 formed on a portion of the bracket I08 and is yieldingly held against said surface by a tension spring H6. The operating height of the centering plate 86 can readily be adjusted by turning a knurled head of the screw II2. If desired, the block I02 together with th plate 86 can be clamped in any chosen position of heightwise pivotal adjustment by a winged screw IIB threaded into the web H0 and extending through an arcuate slot I22 formed in the adjacent side wall I 06.

The mechanism 20 for advancing the shoe support toewardly includes a pair of parallel upstanding arms I24 (Figs. 1, 2 and 4) which are pivotally mounted for free rotation upon a transverse shaft I28. The arms I24 are rigidly connected by an integral cross bar I28 which insures their movement in unison. The shaft I28 is journaled in bearings I30 (Fig. 4) formed in the side walls of the head 30. Integral with one of the arms I24 is a bell crank arm I32 (Fig. 1) to the free end of which is pivotally connected the upper end of a treadle rod I34. A tension spring I36 secured at its lower end to the treadle rod I 34 and anchored at its upper end to a bracket I38 secured to the head 38 holds the treadle rod up in a stopped position determined by the engagement of the arms I24 with the bracket I08. When a treadle (not shown), which is connected to the lower end of the rod I34, is depressed, the arms I24 will swing toewardly and will come into 5 simultaneous, engagement with the rolls 68 and continued depression of the treadle will urge the shoe support 28 toewardly.

The device 28 for holding back the heel portion of the platform cover while the shoe is being moved toewardly includes a U-shaped horn I48 (Figs. 1 and 3) of" spring sheet metal. The horn I48 is fixed upon a supporting block I42 which is secured upon the upper end of a rod I44. This rod I44 inclines downwardly and heelwardly and is guided for sliding movement in a bore formed in a boss I46 which is integral with the bracket I88. Formed upon the lowerend of the rod I44 is a square block 48 which is pivotally connected to the upper end of a link I58. The lower end of: the link I58 is pivotally connected to an operating handle I52" (Fig. 4) which is fulcrummed upon a stationary pin I54 secured in a bracket I56. depending from the head 38. Securedupon the shaft I26 by a pin I58 is a sleeve I68 having a pair of inclined arms I62 which embrace the blOQk I48. Formed in the upper ends of arms I62 are slots I64 which engage the end portions of a transverse pin I66 extending through the block I48. Fixed upon an end portion of the shaft I26 by a pin I68 is a crank arm I18. A snap acting tension spring I12 has one end anchored to the bracket I38 andthe other end hooked over a pin I74 on the crank arm I18. It is evident that when the horn I48 is in the up position as shown in Fig. 1 it will be held in that position by the spring I12; because the axis of the spring is above the axis of the shaft I26. When the horn I48 is in its down position, as will later be explained, the axis of the spring I12 will pass mined by a knurled nut I16 threaded upon the upper portion of the rod I44 and engageable with the upper end surface of the boss M6. The up position of the horn I 48 is determined by the engagement of the handle. I52 with the head 38.

After the horn I48 has been lowered from its within it. Such expansion is effected by means I of a pair ofspreader arms 88 (Fig. 3) pivotally mounted upon fulcrum pins I82 secured in the block I42; The toeward end of each arm I88 has formed in it a bearingwhich engages an upstanding pin I84, the lower portion of which is secured} to the horn I48. Extending heelwardly from each arm I88 is a grip handle I86. Intermeshing gear sectors I88 coaxial with the pins I82 are formed upon the respective spreader arms I88 to insure the coordination of the movements of the spreader arms about a common center. The spreader arms I88 are normally held in a closed position by compression springs I98 interposed between the block I42 and the respective grip handles I86. To open or spread the horn I48, the handles I86 are brought closer together and they can be held in any desired position by a latch I92 which is pivotally mounted upon a pin I84 carried by one of the handles I66. A rod I 66, pivotally mounted upon a pin I 88 carried by the other handle I86, passes through an opening in the latch I92 and is cramped in the latch by a compression spring 288 interposed between the adjacent handle I86 and a tail 282 of the latch.

The device 32 (Figs. 6, 7, and 8) for pressing the platform unit upon the sock lining to cause adhesion includes a pad 284 of rubber. or other suitable material backed by a metal disk 266. This disk 286 is mounted for angular selfadjustment by means of a ball and socket joint 288 on the lower end of a stem 2I8 which is secured in a bar 2I2. A compression spring 2I4 surrounding the stem 2 I 6 and interposed between the bar BIZ and the disk 286 normally holds the disk in a neutral angular position from which it can tilt upon engagement with the work. Secured to the bar 2.I2 above the pad 284 is a hand grip 2I6 by means of which the operator can exert directly upon the work pressure which is additional to that which he exerts through the machine. As shown in Fig. 8, the pad 284 engages the forepart of the platform P to press the platform against the sock lining of the shoe. The device 32 includes also a rod 2I'8 having a rounded lower end for engagement with the heel H, the rod being guided for purposes of adjustment in a socket formed in a boss 228 on the bar 212. A knurled head 222 secured on a stem 224 which extends up from the rod 2| 8 and which is threaded in a. bore in the boss 226 provides for adjustment: of the operating position of the rod. The bar 2I2 carries a third presser member in the form of a transverse bar 226 engageable with the shank portion of the heel H and pivotally mounted for limited swinging movement of self-adjustment upon a pin 228 carried by a lug 238 on the bar 2I2, said pin extending longitudinally of the shoe.

The bar 2 I2 is pivotally mounted, for equalization of pressure, upon a shouldered screw 232 secured in the upper end of a lever 234 comprising a pair of parallel arms. A stop pin 236 extending from the lever 234 and engageable with an arcuate slot 238 in the bar 2I2- limits the freedom of swinging movement of the bar about the pivot screw 232. The lever 234 (Fig. 6) is fulcrumed upon a stationary pin 248 which is mounted upon a pair of walls 242 of a bracket 244. This bracket 244 is mounted upon a bracket 246 which is secured to the head 38. The lever 234 has a portion 248 extending below the fulcrum pin 2-48 and carrying a pivot pin 258 to which is connected one end of a toggle link 252. The other end of the toggle link 252 is pivotallyconnected by a pin 254 to the upper end of a second toggle link 256 The lower end of the toggle link 256 is pivotally connected by a pin 258 to a slide 266 having ratchet teeth 262. The slide 268 is guided for heightwise movement in a guideway formed in a boss 264 on the bracket 246 and is retained in its guideway by a cover plate 265. The lower end portion of the toggle link 256 is forked to embrace the boss 264, the side walls of the boss having hei'ghtwise slots through which the end portions of the pin 258 extend. A compression spring 266 housed in the boss 264 and backed by an abutment screw 268' normally holds the slide 268 up to a limiting position determined by a stop link 216. This stop link 216 has a forked end which is pivotally connected by a pin 212 to the toggle link 256 and it has a shank which slides freely through a bore in a swivel pin 274. The end portions of the swivel pin 214 are journal'ed f or free turning in bearings formed in the bracket walls 242. When the pressing device 32 is in its up position, as shown in solid lines in Fig. 6, a shoulder 216. on the stop link 218. engages the swivel pin 2.14 to hold the toggle link 256 against movement to the right, while the spring. 266. ex-

7 erts an upward thrust against the toggle link 256 which holds the toggle link in its stopped position with the pin 254 to the right of dead center, i. e., the line joining the axes of the

pins

240 and 258.

The pressing device 32 is moved from its up position down into operative position (indicated by dash-dot lines in Fig. 6) by an operating handle 278 fulcrumed on the pin 240 and having an integral forked offset depending portion 286 which is pivotally connected by a pin 282 to one end of a link 284, the opposite end of which link is pivotally connected by a pin 286 to the toggle link 256. Movement of the handle 218 to the right (as seen in Fig. 6) causes the toggle link 256 to move to the left past the dead center line already mentioned, and continued movement of the handle causes the toggle formed by the

links

252 and 256 to straighten into the position shown in dash-dot lines in Fig. 6. Movement of the toggle to the left is limited by a stop collar 288 on the link 278 and engageable with the swivel pin 214 just after the toggle pin 254 has passed to the left of a dead center line joining the centers of the

pins

254 and 258.

The movement of the pressing device 32 into its down position causes the slide 260 to descend against the up-thrust of the spring 266. Such descent is limited by a pawl 290 pivoted upon a pin 292 fixed in the bracket walls 245. The pawl 298 has a tooth 294 which, when the pawl is swung to the left by a spring 286 connecting. it to the toggle link 256, will engage the ratchet teeth 282 to prevent further descent of the slide 266. handle 218 will then cause the straightening toggle link 252 and 2-56 to exert a positive upward thrust against the left end of the lever 234, thereby causing the pad 264, the rod 2 I8, and the bar 226 to bear down upon the platform unit. The extent of downward movement of the slide 260 is determined by a stop screw 298 adjustably threaded into the pawl 290 and having a head engageable with the toggle link 256. When the effective length of the stop screw 238 is shortened, engagement of the tooth 294 will take place sooner and a relatively great pressure will be exerted through the toggle mechanism; and when the effective length is increased, engagement will take place later and a relatively less pressure will be exerted.

Th device 34 for turning the toe portion of the platform cover includes a pad 306 (Figs. 1, 9, l0, and 11), preferably of a hard plastic material, for bearing down upon the toe portion of the platform P. This pad 365 cooperates with a stationary turning horn 362 which engages between the platform cover C and the last L (or upper U for a shoe with a closed toe). The pad 360 is backed by a metal plate 304 which is fixed upon a shaft 366 having its end portions journaled for limited turning in bearings 368. Threaded upon reduced end portions of the shaft which extend out beyond the bearings 308 are retaining nuts 3"). One of the bearings 308 is recessed to receive a stop pin 352 (see Fig. 10) extending radially from the shaft 306 and engageable with the ends of the recess in the bearing to limit turning of the shaft. The bearings 368 are mounted respectively upon the upper ends of a pair of vertical slide rods 3 I 4 which are movable heightwise in unison. A tension spring 3I6 has its upper end hooked over a pin 3I8 extending radially from the shaft 306, and its lower end anchored to one of the slide rods 3 I4 to hold Continued downward pressure upon the 1:.

Ill)

' are slidable in vertical guideways formed in bosses 324 formed on the ends of a stationary bracket 326 which is secured to the end of the head 38. Operation of the presser pad 300 is effected through a lever 328 fulcrumed upon a pin 33!! (Fig. 1) secured in the head 38. The lever 328 is normally held up by a spring 332 anchored to the head 38, the upward movement of the lever being stopped by the engagement of the bosses 320 with the lower ends of the bosses 324. Formed in the free end portion of the lever 328 is a slot 334 (Fig. 1) which engages a pin 336 extending through bores in a pair of ears 338 depending from the cross bar 322 (Fig. 10). A treadle (not shown) connected by a rod 340 to the lever 328 enables the operator to depress the pad 300.

The turning horn 302 is secured upon the upper portion of a. slide 342 which is clamped by screws 344 in a vertical guideway formed in the stationary bracket 32 6. The screws 344 extend through a vertical slot 345 formed in the slide 342 to provide for heightwise adjustment of the turning horn. The horn itself (Fig. 16) consists of a U-shaped piece of sheet metal having welded to its inner central portion a wedge 348. The upper edge of the wedge 348 is thin, so that as the toe end of the lasted shoe descends, the wedge 348 will exert a heelward thrust against the toe end of the last L and push the last heelwardly far enough to enable the horn 382 to clear the stitching which joins the platform cover to the sock lining. A central hollow 348 (i. e., concavity as seen in horizontal cross section) in the wedge 348 provides a bearing surface for contact with the convex surface of the last.

To facilitate proper positioning of the lasted shoe for engagement of the toe end of the platform cover C with the horn 302, there is provided a stop 356 (Fig. secured to the slide 342 and engageable with that portion of the unturned platform cover 0 which overlies the toe end of the last.

The operation of the machine will now be explained. First, the last with the shoe thereon is mounted on the last pin 40 and the toe rest 42, and is then pushed by the hand of the operator heelwardly along the guideway 22 into the position shown in Fig. 1. During this heelward movement, the heel portion of the last L engages the V-shaped notch of the centering gage plate 86 (Fig. 2), causing the shoe to be centered transversely as the block 46 slides in the transverse groove 56. Such transverse centering of the shoe is desirable because of the difference between rights and lefts. The springs I00 yield to permit the shoe to be pushed far enough heelwardly to insure that the horn I40, in descending, will enter within the upturned heel end of the platform cover C. Such descent of the horn I40 is effected by a downward movement of the handle I52. Now, With the horn I48 inside the platform cover and held yieldingly down against the sock lining S by the spring I12, the operator grips the handles I86 to spread the horn I46 wide enough to receive the heel portion of the platform unit P. He then depresses the treadle connected to the rod I34, thereby bringing the arms I24 into engagement with the rolls 68 and causing the shoe to advance toewardly until the ii .heelward end of the horn M0 slides just over the heelward end of the stitching which joins the sock lining and the platform cover. While the shoe is in this position, the operator lays the platform unit P in proper position upon the sock lining S. He then swings the handle 213 down, bringing the pad 204, the rod 2 l 8, and the bar 225 down (see Fig. 8) against the platform unit P and causing them to bear upon the platform unit with a heavy pressure exerted through the toggle mechanism of the pressing device 32. This pres sure causes the adjacent surfaces of the sock; lining and the platform unit, which already have been coated with a pressure-activated cement, to adhere. For reasons already mentioned, the device 32 will maintain its pressure even after the operator lets go of the handle 218. While the platform unit is thus held down by the pressing .device 32, the operator raises the handle L52 to Withdraw the horn I60 up from between the heel H and the plat-form cover C. He then raises the handle 21%? to release the pressing device 32 and return it to its initial position.

The platform unit P having thus been applied,

the operator now rocks the shoe about the axis a of the arcuate guideway formed in the block it to raise the toe portion of the shoe off the toe rest 42, and he also pushes the shoe toewardly along the guideway 22 until the toe end of the platform cover (which is still unturned) strikes 1 against the stop 350. The shoe is now positioned :so that, by its own weight (aided if necessary by light manual pressure) it will drop into the position shown in Fig. .9, the rounded toe end of the last serving as a cam to guide the horn 392 between the last and the platform cover. By de pressing the treadle connected to the rod 34!), the operator causes the pad 300 to push the toe end of the shoe down, thereby causing the toe portion of the platform cover to be turned .over the horn 302, as shown in Fig. 11, into upstanding right-sideout'position, as shown in Fig. 12. The operator then releases the treadle connected to the rod 343. The operation is now complete and the shoe and last can be removed from the ma- ,2

chine.

In the modified machine shown in Figs. 13, .14, and .15, the platform cover turning mechanism 34 has been placed at the right-hand end of the machine rather than at the left and the device 28 for conforming the heel portions of the platform cover and the :sock lining has been replaced by the device 393. This alternative device 33 comprises across bar 352 having its ends rigidly secured to the forward upper ends of a pair of parallel :arms 354, the lower and heelward ends of 'which are :fulcrumed upona pair of coaxial pins 35-5 secured in the bracket walls Hi6. Depending fromthe'central portion of the cross bar 352 and :r-ig-idly secured thereto is an arcuate lug 358 having formed on its under surface ratchet like teeth 3.60 adapted to engage the upper surface of the heel H and to hold the heel as well as the entire platform unit against toeward movement when the shoe is urged toewardly. The cross bar .352 and the lug 358 are normally held up in an out-of-the-way position by a cam 362 having its lower surface engageable with 'aeurved end portion l'OD. the .rear of one -of the arms 424. This cam 362 is pivotally 354 provides .for movement :of adjustment of the i it slide 3.65. A screw 3.10 threaded into the arm 354 and extending through a slot 312 in the slide 356 serves to clamp the bar in its adjusted position. To facilitate accurate angular adjustment of the cam 3.6.2 about its pivot 3154, the slide .366 has a lug .314 through which is threaded a screw 313 having its lower end .engageable with 9. lug 3!!! extending laterally from the cam 362. The earn 362 is yieldingly held in engagement with the arm 1.24 by a spring 38.9 attached at its upper end to one of the arms 354 and anchored at itslower end to the bracket I08.

While the treadle rod I34 is in its normal up position, the arm 124 will hold the cross bar 352 and the toothed lug 358 up out of engagement with the heel H. Then, when the operator depresses the treadle connected .to the rod I34 to urge the shoe toewardly, the advancing arm 124 will permit the spring 380 to draw the toothed lug 358 down into engagement with the heeland thereby cause the teeth v360 to hold the heel against toeward movement. The treadle is depressed far enough to cause the heel portions of the upturned platform cover C and the sock lin ing S to be conformed to the shape of the heel itself and to bring the shoe into proper .toeward and heelward relationship to the platform unit. Release of the treadle thereupon serves to raise the cross bar .352 and the toothed lug 358 out of contact with the heel H. ,A stop pin .382 .(Fig. 15), enagageable with a tail on one of the arms 354, prevents excessive downward movement of the cross bar 352 if the treadle should be depressed when no work is in themachine.

The mechanism .32 for pressing the platform unit against the sock lining, while not shown in Figs. 13, 14, and 15, can be used in conjunction with the device 3!] provided the .shank presser cross bar 1226 (Fig. 8) of that device beremoved. This presser cross :bar is rendered unnecessary by 7 reason .of the fact that the toothed lug .358 exerts a downward component of pressure which serves equally well. Upon release of the shoe from the forming device 3B and the pressing device 32, the operator will proceed to turn the toe ,portion .of the platform cover C in the manner already de scribed.

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

.1. In a machine for use in the manufacture .of shoes, a support for a last on which is mounted a partially completed platform shoe having an upper, a sock lining, and ,a platform cover united by stitching, the heel portion of the platform cover having been .turned right side out to form a pocket and theforepartof the platform @0319! being still unturned and wrong side out, .aguideway along which .the support is movable between two stations, a member fixed against ml'wementv in a direction lengthwise of the ,guideway for causing the heel portions of the platform cover and the sock lining to be conformed .to theshape of the heel seat of the last upon relative movement between said .fixed member and the support, .means for urging the support along the guideway to effect said relative movement and thereby to facilitate the laying .of the heel end .of a platform unit on the heel end of the sock lining, and means at the other station .for turning the forepart of the platform cover into rightside-out position.

2. .In a machine for use in the manufacture of shoes, a support for a partially completed platform shoe having an upper, a sock lining, ,andra platform cover united by stitching, the platform coverhaving been turned right side out at its heel portion and being still unturned at it toe portion, a guideway along which the shoe support is movable between a platform unit laying station and a platform cover turning station, means at the platform unit laying station for urging the shoe support along the guideway while holding back the heel portion of the platform cover to facilitate the laying of a platform unit upon the sock lining, means at the platform unit laying station for pressing the platform unit .upon the sock lining to cause precemented surfaces of the platform unit and the sock lining to adhere, and means at the platform cover turning station for turning the toe portion of the platform cover .after the platform unit has been laid.

3. In a machine for use in the manufacture of shoes, an upstanding last pin for engagement with an inverted last on which is mounted a partially completed platform shoe having an upper, a sock lining, and a platform cover united by stitching, a carriage for supporting the last pin, a guideway along which the carriage is movable between two stations, means at one of the stations for pressing a platform unit upon the sock lining to cause precemented surfaces of the platform unit and the sock lining to adhere, a toe rest for supporting the forepart of the shoe against the pressure of said pressing means, a second carriage movable along the guideway for supporting the toe rest, a yieldable connection for moving the toe rest carriage along the guideway in unison with the last pin carriage, and means at the other station for turning the toe portion of the platform cover after the platform unit has been laid, said yieldable connection serving to permit the second carriage to stop in an out-of-the-way position while the first-mentioned carriage is completing its movement to bring the toe portion of the shoe into position for operation by said platform cover turning means.

4. In a machine for use in the manufacture of shoes, a support for a partially completed platform shoe having an upper, a sock lining, and a platform cover united by stitching, a carriage on which said shoe support is indirectly mounted, a guideway along which the carriage is movable between two stations, means at one of the stations for pressing a platform unit upon the sock lining to cause precemented surfaces of the platform unit and the sock lining to adhere, means at the other station for turning the toe portion of the platform cover, said carriage and said shoe support being constructed and arranged for adjustment of the shoe support on the carriage in a direction transverse to the guideway, and means operable upon movement of the shoe along the guideway for effecting said adjustment to center the shoe.

5. In a two-station machine for use in the manufacture of shoes, mechanism at one of the stations for operating upon a partially completed shoe, mechanism at the other station for operating further upon the shoe, a guideway extending between the two stations, a carriage movable along the guideway, said carriage having formed in it a guideway transverse to the firstmentioned guideway, a shoe support movable relatively to the carriage in the transverse guideway and movable with the carriage along the first-mentioned guideway, and a member having a pair of converging cam surfaces engageable with the heel end of the shoe for moving the shoe and its support in the transverse guideway 12 to center the shoe as the shoe arid the carriage are moved along the first-mentioned guideway.

6. In a two-station machine for use in the manufacture of shoes, mechanism at one of the stations for operating upon a partially completed shoe, mechanism at the other station for operating further upon the shoe, a guideway extending between the two stations, a carriage movable along the guideway, said carriage having formed in it a guideway transverse to the first-mentioned guideway, a shoe support movable relatively to the carriage in the transverse guideway and movable with the carriage along the first-mentioned guideway, a centering gage operable upon engagement with the shoe to move the shoe and its support in the transverse guideway to center the shoe, and resilient means for yieldably holding the centering gage against the shoe regardless of the exact position of the carriage along the firstmentioned guideway.

7. In a machine for use in the manufacture of shoes, a support for a partially completed platform shoe having an upper, a sock lining, and a platform cover united by stitching, the platform cover having been turned right side out at its heel portion, a guideway along which the shoe support is movable, means for urging the shoe support toewardly along the guideway, a member engageable with a platform unit which rests upon the sock lining to hold the platform unit back against the turned heel portion of the platform cover as the shoe support is urged toewardly, and means operated by said urging means for normally maintaining said holding member up out of the way and for enabling said holding member to descend into operative position when the shoe support is moved toewardly.

8. In a machine for use in the manufacture of shoes, a support for a partially completed platform shoe having an upper, a sock lining, and a platform cover united by stitching, the platform cover having been turned right side out at its heel portion, means for moving the shoe support forwardly, means for holding back the heel portion of the platform cover to facilitate the laying of a platform unit on the sock lining, and means for creating pressure between the platform unit and the sock lining to cause adjacent precemented surfaces of the platform unit and the sock lining to adhere.

9. In a machine for use in the manufacture of shoes, a support for a last on which is mounted a partially completed platform shoe having an upper, a sock lining, and a platform cover united by stitching, the heel position of the platform cover having been turned right side out to form a pocket, means for moving the last support forwardly, means for holding back the heel portions of the platform cover and the sock lining to cause them to be conformed to the shape of the heel seat of the last to facilitate the positioning of the heel end of a platform unit on the heel portion of the sock lining, and means operable thereafter and while the platform cover and the sock lining are thus conformed for creating pressure between the platform unit and the sock lining to cause adjacent precemented surfaces of the platform unit and the sock lining to adhere.

10. In a machine for use in the manufacture of shoes, a support for a last on which is mounted a partially completed platform shoe having an upper, a sock lining, and a platform cover united by stitching, the heel portion of the platform cover being turned right side out to form a pocket, a flexibl U-shaped band movable into said pocket, means for spreading the U-shaped band within the pocket to widen the pocket, means for urging the last toewardly, means for the holding U-shaped band back against the force of said urging means to create a heelward thrust against the pocket formed by the platform cover and thereby to facilitate the laying of a platform unit upon the sock lining, and means for pressing the platform unit against the sock lining to cause adjacent precemented surfaces of each to adhere.

11. In a machine for use in the manufacture of shoes, a support for a last on which is mounted a partially completed platform shoe having an upper, a sock lining, and a platform cover united by stitching, the heel portion of the platform cover being turned right side out to form a pocket, means for urging the last support toewardly, means engageable with a platform unit which rests upon the sock lining to hold the platform unit back as said urging means forces the heel- Ward end of the pocket against the heelward end of the platform unit to insure proper relative positioning of the platform unit and the sock lining, and means for pressing the platform unit against the sock lining to cause adjacent precemented surfaces of each to adhere while they are in proper relative position,

12. In a machine for use in the manufacture of shoes, a support for a last on which is mounted a partially completed platform shoe having an upper, a sock lining, and a platform cover united by stitching, a turning horn adapted to be engaged within the toe end of the unturned platform cover, said horn consisting of a U-shaped piece of sheet metal having fixed centrally thereto a wedg adapted to push the last heelwardly upon relative heightwise movement between the horn and the last support, said relative heightwise movement serving to cause the toe portion,

of the platform cover to be turned and said heelward push of the last serving to cause the horn to clear the stitching which joins the platform cover to the sock lining, and means for effecting said relative heightwise movement between the horn and the last support.

13. In a machine for use in the manufacture of shoes, an upstanding last pin for engagement with an inverted last on which is mounted a partially completed platform shoe having an upper, a sock lining, and a platform cover united by stitching, a carriage for supporting the last pin, a guideway along which the carriage is movable between two stations, means at one of the stations for pressing a platform unit upon the sock lining to cause precemented surfaces of the platform unit and the sock lining to adhere, a toe rest for supporting the forepart of the shoe against the pressure of said pressing means, an upstanding stationary horn at the other station engageable within the platform cover at the to end of the shoe, a connection between the last pin and the carriage for enabling the shoe and last to be rocked to raise the toe portion off the toe rest for presentation of the platform cover to the horn, and means for pushing the toe end of the shoe and last down to cause the toe portion of the platform cover to be turned over the horn.

PAUL W. SENFLEBEN.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date Re. 4,724 Critchett Jan. 30, 1872 543,682 Glidden July 30, 1895 1,265,525 Scarlett May 7, 1915 1,443,780 Young et a1 Jan. 30, 1923 2,409,447 Perri Oct. 15, 1946