US2466816A - Machine for platform and cover cementing - Google Patents

Description

April 12, 1949. w. 1 MacKENzlE 2,466,816

l MACHINE FOR PLATFORM -AND COVER CEMENTING Filed July 1o, 1945 7 Sheng-sheet 1` O 70 /ww In Uenor WZZJuPLMac/'enzie April 12, 1949. w. L. MacKl-:NZIE: 2,466,816

l MACHINE AFOR PLATFORM AND COVER CEMENTING Filed July l0, 1945 7 Sheets-Sheet 2 Imm for bu/LMQcKenzze plil 12, 1949. w, LMMKENzlE 2,466,816y

MACHINE vFOR PLATFORM AND -COVER CEMENTING Filed July 10, 1945 v 7 Sheets-Sheet 5 April 12, 1949. w. L. MHCKL-:NzlE 2,466,816

-' MACHINE FOR PLATFORM AND COVER CEMENTING Filed July 1o., 1945 7 sheets-Sheet 4 j y 78 h v I f 1- )i l 82 1| /oz l [wenfor Wlbur L MacKenzie April 12, 1949. w. L. MaKl-:Nzm 2,466,816 f MACHINE FOR PLATFORM ,AND COVER CEMENTING Filed July 1o, 1945 v 7 sneek-sheet 6 Innen for WZburLMac/C'enzz'e April 12, l1949. w. L. MacKENzlE MACHINE FOR PLATFORM AND COVER CEMENTING Filed July 1o, 1945 'Inventor VVz'Zbur MacKenzie Patented Apr. 12, 1949 MACHINE FOR PLATFORM AND COVER CEMENTING Wilbur L. MacKenzie, Beverly, Mass., assignor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application July 10, 1945, serial No. 604,187

19 Claims.

This invention relates Ito vmachines for applying bands of coating material to the .lasting margin of a shoe upper and 'tothe adjacent margin of the shoe bottom member over which said lasting margin is to be drawn. It is herein illustrated as embodied in a machine for :simultaneously `applying bands of adhesive, hereinafter called cementf to these surfaces.

In the manufacture of shoes having platform solesywhich shoes-are frequently of the slip-lasted type, it is common practice to provide the shoe bottom with a yieldable platform sole and to vsecure to the periphery of the upper a band of flexible material,known as the platform coverj which is drawn over the bottom face of the platform and secured thereto by cement applied to each part. There are many different ways `of .prowding the coacting bands of cement. In

`some factories, the cement is applied tothe whole 'bottom face ofthe platform'sole while, in others,

lonly a marginal band is utilized. Some factories apply the cement to the margin of the cover while it surrounds the shoe, while other factories wait until the platform sole has been applied and the cover turned to an upstanding position, considering the shoe in inverted position, around the lperiphery thereof. For the latter operation, covercoating machines have been provided which tension the cover at the same time as lthey apply the band of cement to it. Whatever the procedure is, it will be realized 'that the cover material is always flexible and frequently is flimsy and wrinkled. For this reason, the application of a coating to it requires that the cover shall be tensioned or smoothed so that the coating may be applied uniformly thereto. Similar problems ar-ise in coating, for cement lasting, the uppers -of unlined shoes, vand of certain -moccasin types,

sioning means which cooperates with the side face of the nozzle, adjacent to the `outlet opening from which .is vdelivered the coating for the cover. Adjacent to and as an adjunct to this vtensioning means is a rapidly vibrating finger which intermittently presses .the cover against the nozzle at the loutlet opening and alternately releases it at a high rate of speed. The t'ensioning device as shown is in the form of a roll supported upon a shaft inclined downwardly and forwardly with respect to the direction 'of movement of the work. This roll, pressing the cover against the side face of the nozzle lhas'fone com- .ponent of force which tensions the cover widthwise and another component which assists in feeding the work.

Another important object of the invention is to provide a machine for simultaneously coating the margin of the cover and Pthemargin ofthe platform sole. This is effectively `carried out in the illustrated machine and in accordance with features of the .invention by coating the cover as above and by utilizing both a rigidlymounted `nozzle and a flexible nozzle for the lapplicationof the coating to the platform sole, thereby enabling 'the work to be tilted as needed by the varying curvature of the sole margin. Preferably and as shown, the 'same rigid nozzle is provided with a lateral Aopening for the coating of the cover and has associated with it the smoothing Aand tensioning elements lpreviously mentioned. A driven roll engaging the shoe at the .periphery ofthe platform sole lis voperator-'controlled and `moved 'out Ato a fixed position with respect to the nozzles and thus serves also as a gage to 4determine the position rof the "band upon the platform so'le. f

vAs illustrated, the machine embodies a device for coating the Ioverlapping endsof the platform 'cover and,:since this may readily be accomplished by means of a freshly coated linger to which the work may be presented, mechanism is provided .for dipping this finger in a receptacle, raisingA 'it out -of the "coating material in the receptacle and moving it outwardly through a controlling device to limit the quantity of coating carried thereby. l

These and other features of the invention will best be understood from a consideration of fthe following specification taken in connection with v'the accompanying drawings, in which Fig. 1 is an angular view of the head `of the machine;

Fig. 2 is an angular view of a shoe to which bands of coating material have lbeen applied;

Fig. 3 is a side elevation of the machine with 'parts broken away.;

Fig.' 4 is a detailed view of a vibrating nger by which ,the cover is held against-the nozzle.; Eig. 5 is a front velevation of the head of the machine, with the nozzle broken away to show the interrelation of a tensioning roll and the vibrating finger;

Fig. 6 is a view on a larger scale of this tensioning roll and an associated abutment as well as the nger;

Fig. 7 is an enlarged angular View, showing the nozzles, the feed roll and associated parts;

Fig. 8 is a detailed section taken just above the tensioning roll on the line VIII- VIII in Fig. 6;

Fig. 9 is a elevation of the work-engaging par-ts observed from the left;

Fig. 10 is a similar View of these parts when in engagement with a piece of work, the latter being shown in transverse section through an inverted shoe;

Fig. 11 is a horizontal section through the lower end of the nozzle on the line XI-XI of Fig. 10;

Fig. 12 is a section through these same parts but taken at right angles to the axis of the tensioning roll and on the line XII-XII in Fig. 6;

Fig. 13 is an enlarged angular view of the combined nozzles, broken away to show a control valve for one of the nozzles;

Fig. 14 is a side elevation of these same nozzles on a smaller scale and broken away to show the delivery passages;

Fig. 15 is a detailed showing of one of the blocks of which the nozzle is made up, in inverted position;

Figs. 16 and 17 are angular views of the coacting faces of the cooperating plates which make up the fixed or rigid nozzle;

Fig. 18 is a side elevation with parts broken away and in section of a device for coating the overlapping ends of the cover material;

Fig. 19 is a similar view, showing the applicator thereof in its raised and its extended position; and

Fig. 20 is a plan View of this same device.

Supported upon a pedestal l0 (Fig. 3) is a hollow frame I2 having parallel sides I4 and I6 (Fig. 1). The upper portion I8 of the side I4 is made as a removable plate to facilitate assembly of the machine, and many of the operating parts are supported between this plate and the rear side -plate IB by means of transverse pivot pins. At the top of these side plates there is an overhanging portion 20 (Fig. 3) to the end of which is secured a block 22 which is provided with a forked nozzle support 24 (Fig. 7.) having its inner faces cut back to receive the dovetail 26 on a nozzle-carrier block 28 the inner position of which is determined by an abutment screw 2T. This block is held in the support 24 by a locking screw 29 and serves to support an articulated nozzle 30 and a rigid nozzle 32. Associated with the rigid nozzle for a purpose to be described are a vibrating finger and a lcover-tensioning roll 36 which also assists the feed of the work. Between the two is a plate 35 (Fig. 5) and below them is a feed roll 38 in engagement with the side of a lasted shoe 46 (Fig. 10) opposite the periphery of a platform sole 44 to which there is to be applied a marginal band of cement 46 (Fig. 2).

Inasmuch as the cover 48, after it is released by the machine, tends to draw or fall back, there is a danger that the cover will become stuck to the edge of the platform prior to the lasting operation. When this happens, it forces the operator of the lasting machine to pull it loose again so that it may be drawn taut around the edge of the platform. It is therefore a good practice to position the band of coating material 52 on the cover so that a clean margin 54 is left between the inner edge of this band and the corner of the platform sole. For a similar reason, it is found preferable to leave a narrow, clean margin 41 outside of the band of material 46 which is applied to the margin of the bottom face of the platform sole. The cover 48 is usually stitched to the upper and turned down about the platform sole with its ends overlapping as at 56. It may be seen from Fig. 11 that the marginal band 46 on the sole is applied by means of the articulated nozzle 30 and by the end of the rigid nozzle 32, while the band 52 upon the cover is applied by means of the rigid nozzle 32 against the side face of which the cover i8 is pressed intermittently by the vibrating linger 34. The feeding of the work is accomplished by the combined action of the tensioning roll 36 and the shoe feeding roll 38. As in the shoe bottom coating machine shown in Letters Patent of the United States No. 2,195,416, granted April 2, 1940, upon my application, the nozzle is supplied with cement from -a tank 60 (Fig. 3) associated with which is a gear pump 62 connected to the nozzle by means of a flexible hose 64. The pressure, measured by a gage 66, is controlled by an adjustable by-pass valve 68.

As noted above, the application of the marginal band of cement to the platform sole is effected chiey by means of the flexible articulated nozzle 38 which comprises the carrier block 28 (Fig. 13) having :vertical passages 1I) and I2 connected at their upper ends to a recess 14 in a block 'I6 (Fig. 15). This recess communicates with a vertical passage 18 in a block 80 having an upwardly extending stem 82 in which there is embodied a shut-olf valve 84 (Fig. 7) and which is connected to the iiexible hose 64 (Fig. 5). The yieldable and articulated nozzle 30 is constructed as shown in Letters Patent of the United States No. 2,177,- 666, granted October 31, 1939, on an application of MacKenzie et al. It includes a support 86 to which there is attached a recessed tube plate 88 communicating with the vertical passage '12, through a passage 90 (Fig. 14). Pivoted on the support 86 are a series of fingers 92 each having in its bottom face an outlet opening supplied with .cement through an individual tube 94. These lingers are held in contact with the work by wire springs 96 carried by a plate 98.

The nozzle carrier block 28 is also provided with a depending portion |06 to which there is attached a rigid nozzle 32. This comprises an inner plate |62 having in its outer face a downwardly extending recess |64 (Fig. 17) communicating at its upper end with a perforation I 66 which joins a horizontal passage IDB leading to the vertical passage 7D. The ow from one to the other passage is controlled by a needle valve I I0, thus permitting control of the relative quantities delivered to the flexible nozzle 3i) and to the rigid nozzle 32. Associated with and covering the recess |64 on the inner plate IIJ2 is an outer plate II2 having near its lower end a recess IM (Fig. 16) open at one side to provide an upright outlet slot IIt` (Figs. 12 and 13). This recess has a bottom outlet |20 to apply part of the band of cement 46 to the platform. It will be appreciated that the outlet slot II6 applies the band of cement 52 to the cover, and that the position of this band with respect to the corner of the platform sole is determined by the positioning and gaging effect of the end of the rigidly mounted nozzle, which limits upward movement of the ama-aie shoe .by its contact; .with .the platform. sole.. @ni the outer faceofthis. coverzplate 1 1:2'. are .lf-.shaped grooves. 118 (Fig. 10) intersectingone Sideofthe. recess. 1:14 to prevent .th-e work. vfrom .shutting off .the flower cement. when, as. at corners of. a. square toe, it hugsthe .nozzle closely. A .dowel i122. in the .inner plate-1.0.2 assists. :in .locating the cover .plate .1112 which. is. held by screws 1214:-, It will be noted from lEig-s.` 11. 13. that them-ack pia-te 1.02.01? the rigid nozzle hasa. rearward extension126 against which the upstandng. .coverv 4.81. is pressed by the tensionngroll..

This tensioning roll r3.6 hasteeth 130.. maderby; 90' axialcuts and vfill circumferential cuts-ariel. since it is carried; by a. shaft 132 which, .asviewedin. side elevation is: in .a .vertical pl-ane and as: viewed in. Fig.. 5 isinclined.down-ward'lyand-for.-x wardly with respect to the direction of movement. of the work, its action will be divided into two components as; it is rotated clockwise: .when viewed from above. One of these draws; the. coverI upwardly upon the side face.- of. the-.nozzle extension 12.6. and the other :helps .to feed the. work forwardly. The insertion of apiece o-fwork. and its; later `w--tlfid-razwalsgfacilitated` by mount-v ing the shaftl i321 inta-sleeve 13.4 having at its upper;andan.enlargement@135 which is sWi-rrgablebetween pivot pinslfiFigf-)n Thesepinsareq adjustably mounted. in theforkedf lower endpliff. ofga subframe: 1.00 which; is.v supported inthe machineby attachment f tog abracket 1'4 2. securedlto. the. upperend of the nozzle-block 2 2. Thesubframe providesfurther support-of. azdri'ven-,shaf't Mikhailing apulley i461.. The Shaft 1'.41l1is.. con.v nected to the roll shaft 132 byuniversal` joints 1MB-, thus permitting the tilting of the roll shaft Withoutinterfering with the drive. The swinging of--this roll shaft is under the control of theV operator by connections to be later described. The universal `ioints 148v are protected by a cover M59- (Eig. l)

As will be notedfrom Fig. 6, there is asubstantial space between the vibrating finger 34 and the tensioning roll 30. and it has been found: that, if the finger is enlarged tonearly fill this.. spacewhile still permitting relative movement, then, under certain conditions, there is a tendency for the material. to be drawn between the edgeof the finger and the toothed roll. Accordingly, a plate 35 has been provided tooccupy this. space. This plate has an upwardly extending part, 1.41 (Fig. 8) held on. the bearing sleeve 1-34 by means. of screws |43 passing through aboss lfdgat the. lower end of the sleeve. Inasmuchl as this plate. 35 occupies a xed relation to the ten-- s ioning roll 3B., its edge is recessed, as at I4-'1= (Fig. 11)., and notchedv to fit the periphery of the-ten:- sioning. roll and thereby to avoid any possibilitythat the work will be drawn between the two. The slope of the advancing faces of theteeth f3.0.. as m-ade by the 90 axial cuts during. manufacture, facilitates a sort of stripping action-by thethin edge of the plate 35.

At vthe same time as the cover istensioned, the vibrating finger 34 is oscillated intermittentlytopress the cover firrnlyiagainst the outlet 11B of the rigid nozzle. and then to release it tov permit the feeding of the work. The finger 34 thus serves as. an abutment approximately opposite the outlet 1 I6. This action smooths out wrinklesv in the cover and assures the-application of a continuous coating. The finger itself is4 an exten-- sionof a lever |50 which is pivoted onastud 151 (Figs. .6 and- '7).- atA the loweruarm of a lever 152 supported (Fig-V 9) by,` means. of a. braclgei;. 15 4.

carried on` theflower-.face ofthe nozzle .block 2L Vibrations are imparted .-to' the ng-.er lever .t5-.0: through. arod t56 yGlig. 3) extending to .a lever.' 158 the lower` end of .which .is provided. with a cam roll....l60 Ireceived in a. sinuous-groove 162 .inthe side face of acamill, asin the ,.machineof; the PatentNo. 2,1%416 mentioned above. The: locus of theoscillationsimay `readily be adjusted,l by means of,aw,latched-` arm 16,6 attached to an; eccentric bearing-for the lever 158.

Thefeectroll 318:- is...journaled in aslidable blockr 110 (Fig. 3.) joined-.by-.anextension 112. toa bellirv crank ,lever ,l'ldmounted on the same pivot asis the eccentric bearing. attached to vthe arm 166., ThiseXtenSOn- I-.'I2. isreciprocable with the block H0 to carry the roll; 38. toward and away from. the-,work and is slotted to receive aneccentric. portion. I'H of anadjnstable bolt 1.10 extendingbetween the side frame plate I6 and the removg able plate 1 8..r ly partial rotation of the-bolt.

the-.locus of the pathof movement of thexbloclc.

is.- determined so' that the feed rollv 38 may b e brought againstthenworkas close to the end of the vibra-ting finger as feasible.

Power todrive thevariousoperating pari'isofV thev machine is providedfromA a source of .power such as Iamotor (not'shown) connected-.by a belt 1.8-2- (Fig. 5) .to a dr ve. shafit |84. On-.the shaftthere is mounted thelcam V (Fig. 3), already described, pinion-s` (riot-- shown) for driving thev pump-6.2, anda worm. gear (not show-n) con; nectedA to a worm-.1.816 von a short shaft L88-, which.- is 'connected byextensible universal joints E89... 1591 to a .shaft..194- in.the block 110 which ports thefeed roll-3 8. The connection-of the. shaft |94 to the feed roll 38- is--throughaseries of miter gears includingthose. shownat 19E. A belt connection A2110 (Fig. 5) to a countersha-ftj. 2.0.-2 provides. power-for driving aqbeltzllwhich, passes over idler-s; 2.06..- on-.bracketsf208and sur'- rounds the pulley 14S-for driving the shaft 132:. of the tensioningv rollos.. Damage to1 thick pom. tions ofthe work.. is avoided bythe slipping ofv ani adjustable frictionclutch 20S between the belt.- 2.00. and theocuntershaft 202. Adjustment ofy thefriction clutchV is also usefulin varyingthe action. of.. the tensioning roll. upondifferentkinds. of materials.. sothat. the. desired tension will be imparted withouttearingthe material.

vSinceit is desiredthat the feed roll 38. the. tensioningv roll. 36`, `and the. vibrating finger .34-1 shall be separated from the nozzles when a piece. of work is to be inserted or removed, operator-- controlled .deviceshave been provided for impartinglrnovernent tovarious.. levers before men-f.- tioned which control the. positionof these..partsz. Accordinglma treadle.` :(not shown)` isl connected. toa treadle rod. 2l0.. (Fig` 3). theupper end of; which hasa fork. 2.12 pivotally joinedv to. the'. right-hand arm. of a-.bell crank. 21.4- which is;

supported on. a pivot 2.16 carried by a bracket- 1.11V (Figs.. 1 -and`3) depending fromthe side frarnel. Rotationof. the bell crank 21:4- is. limitedz by a stop screwl 1.92. engaging a shoulder- 2501 on thebell crank. Supported on thisA treadle; rod isa col1ar,2.18 bearing against ahorizontally extending. arm. of tliefbell` crank. 1M the other arm of which, is joined-to the extension I-12 of-V the-feed roll block. |10.. This. arm is'. normally held in .the position. shownv in Fig-.- 3 .by agsprin'gfy 222 whenthe treadlef is, .notdepressed. .When it: is. depressed, the extension] |12', pushed. to*- the. lef-11,. carriesithe; feed;. rollt38 against. the. side of.

7 the collar 2|8 on 'the treadle rod 2|0 `and the movement of the latter is limited by the stop screw |92. As the treadle will always be brought to a xed position determined by the screw |92, the feed roll 38 will act as a gage for the work pressed against it and locate the band 46 on the sole and fix the width of the cleanmargin 41. A lost motion connection 224 is also provided between the pivot pin of the treadle-rod fork 2|2 and a lever 226 carried by the pivot 2| 6 and arranged, in opposition to a, return spring 221, to operate the shut-olf valve 84. This valve operation is accomplished by means of a vertical rod 228 connected to the rearwardly extending arm 230 attached to a rod 232 which is journaled in the bracket 2||. The left end of this rod 232 has a detachable connection through universal joints, such as that at 234, to the shut-o valve. i

The same bell crank 2|4, operated by the treadle, is utilized to shift the position of the fulcrum of the vibrating finger 34 and, to this end, its upper arm is connected to a substantially horizontal rod 240l the other end of which is joined to the upper portion of the lever |52 by an eye 242 (Fig. '1) receiving a hollow hub 244 on the lever. A stop bracket 245 carried on the block 22 coacts with the eye 242 to limit the swing of the lever |52 and hence the approach of the finger 34 to the work. When the treadle is operated to move the rod 240 endwise, yieldably because of a spring 246, it does not interfere with the continued oscillation of the finger 34 but changes the locus of its range of movement to move it close to the nozzle where the nger will contact the work.

The same movement of the treadle rod is effective to shift the tensioning roll 36 against the cover material by reason of the fact that a pin 253 on the lever 226 is arranged to underlie a lever arm 252 pivoted on the frame plate I8 and joined to another arm 254 which carries a sliding block 256 (Fig. 1) surrounding a rod 258 pivoted to an ear 260 on the sleeve |34 which carries the shaft |32 of the tensioning roll 36. This rod 258 is slidably supported in a bracket 262 which is attached to the frame and it has a stop nut 264 limiting the extent of movement of the roll 36 `toward the rearward extension |26 on the nozzle. The action of the block 256 in pushing the rod against the work is yieldably exerted through a spring 266 bearing against a collar on the rod.

For the reason that covers such as that shown at 48 have one or more joints with the ends of the material overlapping as shown at 50, it becomes necessary to provide for the sticking together of these overlapping ends before the cover is lasted. 'Ihere is accordingly provided on the machine a device which brings out a freshlycoated tongue or presenter 304 to which the ends of the cover may be presented and from which a suicient coating of cement may be drawn, to stick these ends together. The lower end, resting against the periphery of the platform sole,A

is raised into contact with the lower side of the presenter and the upper end is pressed by the operators finger against the upper side.

It is this device which is illustrated in Figs. 18, 19 and 20 and which is carried by a subframe 210 which is attached to the main frame by means of a bracket 212 and a brace .214 (Fig. 1). On the subframe are lugs 216 and 218 carrying a plate 280 on which are ymounted guides 282 and 284 for a vertically slidable bar-286. The plate 280 also has a laterally extending plate 288 on which there is a pivot 290 for a treadle-operated lever 292. At the lower end of the plate 280 is supported a receptacle 294 provided with a slotted cover 296 on which there is slidably carried a narrow plate 298 apertured at 300 to receive a swinging arm 302 carrying at its lower end a curved presenter or tongue 304. Loops 299 are provided on an upper cover 30| to guide the sliding plate 2,98. The covers 296 and 30| are held on the receptacle 294 by thumb nuts 303. One side of the receptacle has an opening 306 through which the tongue may protrude and, inside the receptacle, there is a scraper or regulator 308 having a suitably tapered aperture for the passage of the tongue so as to remove therefrom surplus coating liquid 3|0. This scraper or regulator 306 has an adjustable portion 309. l

The swinging arm 302 is pivotally carried at 3|2 on the sliding bar 286. When the lever 292 is turned by depression of a treadle (not shown) connected to a treadle rod 3| 4, then the tongue isv lifted out of the liquid in the receptacle and caused to project through the scraper and the opening 306. The connection between the lever 292 and the Ibar 286 is by means of a link 3| 6 joined to a laterally extending bracket 3|8 secured to the bar by a screw. The limit of upward movement of the bar at which the tongue will register with the opening 306 is adjustably determined by an angle iron 320 secured to the side of the bar and arranged to contact with a stop screw 322 threaded in the upper guide 282.

The lever 292 has a shoulder 324 abutting the upper side of a lever 326 also carried by the pivot' 290 and held normally in contact with the shoulder 324 by means of a coil spring 328'. This spring surrounds the pivot 290 and is hooked under the actuating lever 292 at one end and rests against a pin 330 at its other end. This pin 330 is carried in a downwardly extending leg 332 of the lever 326. The lever 326 is joined to the treadle rod 3 I4 by means of a bolt 334 and at the lower end of the leg 332 there is a stud 336 which is adapted to contact the side of the arm 302 to press it laterally after the sliding bar 286 has reached the stop screw 322. This lateral movement of the arm 302 is resisted by a leaf spring 338 fastened to the side of the arm and bearing at its upper end against a screw 340 on the arm 3|8. In its rest position, the parts are in the position shown in Fig. 18, with the tongue 304 immersed in the liquid. When the treadle rod is depressed, however, the lever 292 is swung to raise the bar 296 until it is stopped and thus to bring the tongue 304 opposite the outlet opening 306. Further depression of the treadle at that time turns the operating lever 326 on its pivot against the spring 328 and forces the tongue out through the opening to the position shown in dotted lines in Fig. 19 and in full lines in Fig. 20. At that time, the overlapping ends of the cover are presented one above and one below the tongue and then are pressed thereagainst by the operators fingers and withdrawn, carrying with them a sufficient quantity of cement to stick them together. As soon as the tre'adle is released, the tongue 304 returns to the receptacle, and the slide 286 drops to lower it into the liquid. When the device is not in use, the outlet opening 306 is closed, as shown in Fig. 18, by a cover 342 pivoted to the bottom of the receptacle at 344 and having at its end spring clips 346 for frictional engagement with the sides of the receptacle to hold the cover in place. Evaperation of the liquid is also prevented by the close fit of the sliding plate 298 with the arm 302.

In the use of the machine, a piece of work such as the shoe dil shown in Fig, 2 is vheld in inverted position with its lasting margin, here the cover 48, extending upwardly around the periphery of the sole or shoe-bottom member which as illustrated is the platform sole 44. This cover is raised between the rigid nozzle 32 and the vibrator finger 34, and at the same time between the tensioning roll 35 and the extension |26 of the rigid nozzle (Figs. l0, ll and l2). The treadle is then depressed to move the feed roll 38 out against the work, to cause the tensioning roll 36 to grip the work against the nozzle and to bring the vibrating finger' 34 against the part of the cover positioned opposite the outlet HS of the rigid nozzle. In bringing the shoe into this position, the platform sole 4d will have been raised into contact with the ngers of the articulated nozzle 30 with enough force to raise these fingers slightly so that they will drag on the sole and lay the marginal band of cement lE spaced from the edge of the sole by the clean margin 51. The position of this band with respect to the edge of the sole is determined by the rigidly positioned feed roll 38' which is not yieldable as in the patented machines but, by the construction above described, has been moved out to a xed position in which the side of the shoe, and particularly the periphery of the platform sole, is pressed rmly against it. The cover stretched by the roll 36 and smoothed by the vibrator 3d will be given a marginal band of cement 52, leaving a clean margin 54 adjacent to the corner of the platform sole so that there will be little danger-of the cement accidentally sticking the coverto the periphery of the sole before the lasting operation takes place. The position of this marginal band 52 is determined by the relation of the outlet opening H6 to the end of the nozzle 32 since, as explained above, this rigidly mounted nozzle serves to limit the upward movement of the shoe as it is presented to the machine. The operation will be continued until the whole periphery of the shoe has been treated, whereupon the treadle will be released and the joint l! of the cover will be presented to the tongue 304 when in the position illustrated in Fig. 20. At that time, a treadle will have been depressed to bring the coated tongue out of the receptacle 29d ready for contact between the overlapping layers at the joint 5U so that cement may be wiped off upon both surfaces to stick them together.

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

l. In a coating machine for a shoe on a last and embodying upper material with a flexible lasting margin surrounding the periphery of a sole member on the shoe and adapted to be lasted over the margin thereof, means for coating a portion of the projecting margin, means for coating a margin of the sole member, at least one of said means being a flexible nozzle, and means for supplying coating material to said coating means.

2. In a coating machine for a shoe on a last and embodying upper material with a flexible lasting mar-gin surrounding the periphery of a sole member on the shoe and adapted to be lasted over the margin thereof, a flexible nozzle for coating the margin of said sole member, means for coating a portion of the surrounding lasting margin, and means for tensioning said margin in 10 a direction extending away from thek bottom of a shoe.

3. In a coating machine for a shoe on a last and embodying upper material with a flexible Vlasting margin surrounding the periphery of a sole member on the shoe and adapted to be lasted over the margin thereof, a rigid abutment for positioning the sole member with the lasting margin extending 'beyond the bottom of the sole member, a flexible nozzle for applying a band of coating material to the margin of the sole member, means for coating a portion of the margin of the lasting margin, and means for tensioning the margin in a direction extending away from the -bottom of the shoe.

4. In a coating machine for a shoe on a last and embodying upper material with a flexible lasting margin surrounding the periphery of the sole member on the `shoe and adapted to be lasted over the margin thereof, rigidly supported means for applying a marginal band of coating material to the lasting margin, and driven tensioning means opposite said rigidly supported applying means and rotatable about an axis inclined downwardly and forwardly with respect to the direction of movement of the work, said tensioning means engaging said margin to press it against said rigidly supported means thereby to tension the margin as it is coated.

5.`In a coating machine for a platform shoe having a flexible platform cover surrounding the periphery of a platform sole on the shoe, a xedly supported nozzle for applying a marginal band rof coating material to the cover, and driven tensioning means mounted on a shaft inclined downwardly and forwardly with respect to the movement of the work past the nozzle and' engaging the cover to press it against said nozzle, thereby to tension it as it is coated.

6. In a machine for coating platform covers, a nozzle having a face containing an outlet opening, and a driven member coacting with that face to pull the cover taut before it passes the opening.

7. In a machine for coatingl platform covers, a nozzle having a side face containing an outlet opening, and a driven member coacting with that side face to pull the cover taut before itr passes the opening, the end of said nozzle being positioned to serve as a gage to limit the movement of the shoe to which the cover is attached in the direction of the tensioning of the cover.

8. In a coating machine for a platform shoe having a cover surrounding the periphery of the shoe, a cover-coating nozzle applied to the inner periphery of the cover, said nozzle having a portion extending rearwardly with respect to the direction of movement of the shoe, and an inclined tensioning roll pressing the cover against said nozzle and drawing it taut as it approaches the outlet thereof.

9. In a coatingmachine for a `shoe having a platform cover surrounding the periphery of a platform sole on the shoe, coating means applied to the inner periphery of the cover, cover-tensioning means cooperating with said coating means and inclined downwardly and forwardly with respect tc the direction of movement of the shoe, a vibratory presser adjacent to said tensioning means and applied to the cover substantially opposite said coating means, and means interposed between the tensioning means and the vibratory means closely fitting the tensioning means to prevent the cover from being drawn into the space between the two.

10. In a coating machine, a rigidly supported nozzle for applm'ng a marginal band of coating material of predetermined width to the inner face of a platform cover, the end of said nozzle serving to limit the upward movement of a shoe to which the cover is attached, thereby to determine the width of a clean margin between the band of coating material and the corner of the platform, said nozzle end also being provided with an outlet opening to apply coating material to the margin of a platform sole on the shoe, a flexible nozzle for coating an adjacent band of the margin of the platform, and means coacting with the side face of the rst nozzle to tension the cover widthwise thereof.

11. In a coating machine for platform shoes, a depending rigidly supported nozzle having a lateral opening for applying coating material to the inner margin of a platform cover on a shoe moved past the nozzle and an end opening to apply a band of coating material to a platform sole thereon, a gage roll coasting with the periphery of the shoe to locate the band on the sole, a roll pressing the cover against the side face of the nozzle, the axis of said roll being inclined downwardly and forwardly, and means for driving the latter roll to tension the cover and to assist in feeding the work.

12. In a machine for coating platforms and covers of shoes, adjacent nozzles for coating the cover and the platform, respectively, the covercoating nozzle being fixed in position in the ma- :chine and having an outlet opening in one face, means for intermittently pressing the cover against the face of the nozzle, and means to aid in lfeeding the work past the nozzle comprising a driven roll positioned on an oblique aXis to draw the cover away from the shoe along the face of the nozzle as it feeds it forward.

13. In a machine for coating platforms and covers of shoes, adjacent nozzles for coating the cover and the platform, respectively, the platform-coating nozzle having a yieldably mounted portion arranged to be lifted by the work as the latter is presented to it, the cover-coating nozzle being fixed in position in the machine and having an outlet opening in one face, means for intermittently pressing the cover against the face of the cover coating nozzle, and means to aid in feeding the work past the nozzle comprising a driven roll positioned on an oblique axis to draw the cover away from the shoe along the face of the nozzle as it feeds it forward.

14. In a machine for coating platform covers attached to shoes, a nozzle having a. slit in its lateral face to coat a marginal portion of that cover, rapidly vibrating means to hold the cover against the side of the nozzle, and means cooperating with the side of the nozzle to Vpull the cover widthwise and feed the work forwardly.

15. In a machine for coating platform covers attached to shoes, a nozzle having a slit in its lateral face to coat a margin-al portion of that cover, rapidly vibrating means to hold the cover against the side of the nozzle, means cooperating with the side of the nozzle to pull the .cover widthwise and feed the work forwardly, and means for separating the pulling means and the nozzle to permit the insertion of work.

16. In a machine for cementing platform covers, a depending nozzle having a lateral outlet opening, a depending finger supported for vibration and for bodily movement toward and away from the side of the nozzle, means for vibrating said finger toward the side face of the nozzle to press the work intermittently against the outlet opening, a valve controlling the flow of cement to the nozzle, a tensioning roll for smoothing the cover upwardly also mounted for bodily movement, and operator-controlled means for bringing said tensioning roll and said vibrating finger into operative relation with the side of the nozzle and for opening the valve leading to the nozzle.

1'7. In a coating machine for a platform shoe having a flexible platform cover surrounding the periphery of a platform sole on the shoe, coacting means for applying bands of coating material to the upstanding cover and to the margin of the platform sole, at least one of said means being a exible extruding nozzle, and rigid means associated with the latter applying means for spacing a band of coating material on the cover from the icorner where the cover meets the sole.

18. In a .coating machine for a platform shoe having a flexible platform cover surrounding the periphery of a platform sole on the shoe, a exible nozzle for coating the margin of the platform sole, and means for tensioning and coating the cover simultaneously with the coating of the sole.

19. In a coating machine for a platform shoe having a flexible platform cover surrounding the periphery of a platform sole on the shoe, an abutment against which the platform sole may be pressed to guide the work, a flexible nozzle adjacent thereto for coating the margin of the sole, and means for coating the cover and tensioning it away from the sole as the coating is applied to the sole.

WILBUR L. MACKENZIE.

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

UNITED STATES PATENTS Number Name Date 1,476,047 Buckminister Dec. 4, 1923 1,838,099 Keith Dec. 29, 1931 1,959,341 Bowlen May 22, 1934 1,960,341 Keith May 29, 1934 2,042,479 Newhall June 2, 1936 2,292,559 Bell 1 Aug. l1, 1942 2,325,784 MacKenzie Aug. 3, 1943 2,354,326 MacKenzie July 25, 1944

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