US2743468A - Lasting machines - Google Patents

Description

May l, 1956 P. E. BURBY LASTING MACHINES 6 Sheets-Sheet l F'iled March 15, 1955 May 1, 1956 NG MACHINES 6 Sheets-Sheet 2 Filed March l5, 1955 o r M Z 0 U.. f 'im J n u M x ,m WM 0 M 3 2 n annfr /v /lk m Q fn. h, p/w 7n 3 P.

May l, 1956 P. E. BURBY 2,743,468

5 LASTING MACHINES Filed March 15, 1955 6 Sheets-Sheet 3 /za f@ May l, 1956 P. E. BURBY 2,743,468

LASTING MACHINES Filed March 15, 1955 6 Sheets-SheecI 4 JIL/94 :3

Inl/en fr May l, 1956 P. E. BURBY 2,743,468

LASTING MACHINES Filed March l5, 1955 6 Sheets-Sheet 5 nited States Patent LASTING MACHINES Application March 15, 1955, Serial No. 494.324v 17 Claims. (Cl. 12-12.4)

This invention relates to machines for use in the manufacture of shoes, and in some aspects more particularly to machines for lasting the toe ends of welt shoes. The invention as herein illustrated is applied to a power operated toe lasting machine which, except as hereinafter noted, is constructed generally as disclosed in United States Letters Patent No. 2,420,684, granted on May 20, 1947, on an application of C. A. Robinson.

The machine illustrated in the above-cited Letters Patent is a power operated toe lasting machine which is provided with toe embracing wipers for wiping the marginal portion of the toe end of a welt shoe upper inwardly over the feather and against the rib of the insole, the machine also being provided with automatic means for applying a wire binder about the toe end of the shoe to hold the upper in lasted position, and means for vfastening the binder in place by staples driven through v the margin of the upper and the rib of the insole at the opposite sides of the shoe bottom. An object of this in,- yention is to provide improvements in such binderapplying means better to adapt them for operating on shoes of different sizes, and the invention is accordingly herein shown as embodied in means forming part of the same general organization as disclosed in said Letters Patent.

For the purpose in View, the machine herein shown which has a pair of grippers for gripping the ends of a binder at opposite sides of the shoe, automatic means for feeding binder wire to these grippers and about the toe end of the shoe, and operating means for closing and moving the grippers lengthwise and widthwivse ofthe shoe to apply the binder to the lasted shoe, is provided with novel means associated with the gripper operating means adapted to vary the length of binder wire land the timing of the widthwise movement of the grippers according to the size of shoe being operated upon. More particularly, as herein illustrated, the variation in the length of binder wire is effected by varying the time that the right-hand gripper closes on the binder wire during the lengthwise advance of the grippers, the left-hand gripper 'always closing at the same time early in the lengthwisemovement of the grippers. That is, as the two grippers begin to move lengthwise of the shoe the left-hand gripper may grip the wire earlier than the right-hand gripper and thus pull additional wire around the toe before the right-hand gripper closes. By delaying the closing of the right-hand gripper for a longer time, the length of the binder wire pulled by the left-hand gripper through the right-hand gripper may be increased.

In the machine to which the invention is herein shown as applied, the wipers, after wiping the marginal portion of the upper inwardly, are partially retracted lengthwise and widthwise of the shoe and are also raised slightly to relieve their pressure on the upper, after which they are again moved inwardly and are forced downwardly t9 apply the linal pressure. It is at the time when the wipers are thus partially retracted that the binder, under the of operations of the machine.

force applied thereto by the grippers, is pulled fully inwardly against the upstanding margin of the upper. The wipers are supported on a wiper carrier which is first moved heightwise of the shoe to cause the wipers to wipe the upper in that direction, and it is at this time that the binder wire is automatically fed and then measured to length by the grippers. The upward movement of the wiper carrier causes the wire binder to be severed from the wire supply and also causes a wire guideway which leads the binder from One gripper to the other around the toe end of the shoe to be opened for application of the binder to the shoe.

To fasten the binder to the shoe, the machine to which the invention is herein shown as applied is provided with fastening-inserting mechanisms similar to those disclosed in the aforementioned patent which form staples of line wire and drive them into the margin of the'upper and the rib of the insole in positions to straddle the binder at the opposite sides of the shoe bottom respectively in locations beyond the forward end of the wipers. After fastening the ends of the binder the fastening-inserting mechanisms are automatically returned to starting position and the final cycle of the machine returns all other parts of the machine to their starting positions for operation on another shoe.

The above features of the invention, including various novel details of construction and combinations of parts, will now be more particularly described with reference to the accompanying drawings and thereafter pointed out in the claims.

In the drawings,

Fig. 1 is a plan view of a portion of the machine to which the invention is herein shown as applied;

Fig. 2 is a View partly in right-hand side elevation and partly in section showing the wiper operating mechanism and portions of the binder applying mechanism;

Fig. 3 is a plan view of the binder applying mechanism separated from the wiper operating mechanism;

Fig. 4 is a right-hand side elevation of the mechanism shown in Fig. 3 as mounted on the wiper carrier;

Fig. 5 is a section on the line V-V of Fig. 3 with portions of the wiper carrier added;

Fig. 6 is a section on the line VI-VI of Fig. 3;

Fig. 7 is a section on the line VII-VII of Fig. 3;

Fig. 8 is a section on the line VIII--VIII of Fig. 3;

Fig. 9 is a section on the line IX-IX of Fig. 7;

Fig. 10 is mainly a section on line X-X of Fig. 4;

Fig. 11 is mainly a section on line XI-XI of Fig. 3;

Fig. 12 is a view in right-hand side elevation showing the binder feeding mechanism; and

Fig. 13 is a View partly in section and partly in front elevation of the left-hand gripper and fastener-inserting mechanism.

Such parts of the machine herein shown as are common to the disclosures of prior Letters Patent, including the above-mentioned Letters Patent No. 2,420,684, will be hereinafter described only in so far as is necessary for an understanding of the invention. For positioning the shoe, bottom upward, both lengthwise and laterally the machine is provided with a plate 2 (Fig. 13) having a downwardly extending flange formed to engage the inner face `of the rib a of the insole around the toe-end portion in the manner disclosed in Letters Patent No. 2,385,414, granted onr September 25, 1945, on an application of E. A. Holmgren. As further therein disclosed, the shoe is positioned heightwise by three insole-engaging pins, one 0f which is shown at 4, the plate .2 being movable upwardly with the shoe until the pins engage `the insole in response to pressure applied to the shoe by an `upwardly movable toe rest 6 at the beginning of the cycle At the beginning of the cycle-also a heel rest (not shown) is moved rearwardly into engagement with the heel end of the shoe to assist in holding it against lengthwise displacement.

For wiping the toe end of the upper into lasted position the machine has a pair of wipers 10, Figs. 1 and 2, which are advanced lengthwise of the shoe and are closed inwardly widthwise of the shoe to embrace the upper about the toe end of the last and are swung upwardly to wipe the upper heightwise of the last. After the heightwise wiping action, the wipers are further advanced and closed to wipe the marginal portion of the upper inwardly over the feather and against the rib of the insole, the rib being supported against the inward pressure of the wipers by the plate 2. To assist in controlling the upper as it is wiped heightwise of the last the machine is provided with a retarder (not shown) which clamps the marginal portion of the upper outspread on the wipers. The construction of this retarder and of the means for operating and controlling it may be assumed to be substantially as disclosed in Letters Patent No. 2,380,407, granted on July 3l, 1945, on an application of the present inventor.

The wipers are detachably secured in slots in wiper holders 14 (Figs. 1 and 2) which are supported on a wiper carrier 16 and are guided for movements about an axis extending heightwise of the shoe to close the wipers inwardly widthwise of the shoe. The wiper carrier 16 is supported and operated by means constructed substantially as disclosed in Letters Patent No. 2,160,846, granted on lune 6, 1939 on an application of F. C. Eastman and A. F. Pym. Briefly, the carrier is supported near its front end on a pair of links 18, only one of which is shown, and at its rear end on the upper end of a lever 20 pivotally mounted between its upper and lower ends on a rod 22, Fig. 2. The lever is pivotally connected at its upper end `to the carrier by a red 24. The links 18 are pivotally connected at their lower ends to arms 26, only one of which is shown, these arms being fast on a rockshaft 28 mounted in bearings in the frame. Also fast on this rockshaft is an arm 30 provided with a roll 32 which lies in a cam track 34 formed in one side of a cam member (not shown) on a cam shaft 36. i Through this mechanism the wiper carrier 16 is swung upwardly about the rod 24 to cause the wipers to wipe the upper heightwise of the last and is later swung downwardly `to increase the pressure of the wipers on the marginal portion of the upper over the insole. To advance and retract the wiper carrier and the wipers lengthwise of the shoe, the lever 20 is swung about the rod 22 by a cam track 38 formed in one side of a gear wheel (not shown) on the cam shaft 36, the lever having thereon a roll 42 which lies in the cam track.

For operating the wiper holders 14 to close the wipers inwardly widthwise of the shoe, there is mounted on the wiper carrier 16 (Figs. 1 and 2) a slide 44 between which and the wiper holders there are yieldable connections 46 of the same construction as disclosed in Letters Patent No. 2,354,663, granted on August 1, 1944, on another application of the present inventor. The slide 44 is operated through a rod 48 the front end portion of which is threaded therein, and by turning the rod the slide may be adjusted lengthwise of the shoe relatively to the wiper carrier 16 to adjust the wiper holders 14 and the wipers toward or from each other. Operative movement is imparted to the rod 48 through spring mechanism 56 by a pair of links 58 connected to a bell-crank lever 60 mounted on a shaft 62 supported in a depending portion of the wiper carrier 16, substantially as disclosed in greater detail in Letters Patent No. 2,160,846. The bellcrank lever 60 is connected by a link 64 to an arm 66 fast on a rockshaft 68 on which is also secured an arm 70 provided with a roll 72 lying in a cam track 74 in the previously mentioned gear wheel (not shown). In the construction herein shown the lever 60 is loosely mounted on the shaft 62.

As explained in Letters Patent No. 2,420,684, the

timing of the movements of the wipers 10 is such that after they have wiped the marginal portion of the upper inwardly over the insole they are partially retracted lengthwise and widthwise of the shoe and are raised slightly to relieve their downward pressure on the upper, after which they are again moved inwardly and are forced downwardly to apply the final pressure to the upper. At this point the cycle of operations of the machine is automatically interrupted to permit a wire binder, applied to the toe as hereinafter described in proper time relation to the above-mentioned movements of the wipers, to be fastened to the shoe.

For applying a wire binder about the toe end of a shoe to hold the upper in lasted position, the machine herein shown is provided with a pair of grippers 82, 82 (Fig. l) supported for movements widthwise of the shoe on the front end of two levers 84, 84 (Figs. 3 and 4). The levers are mounted to swing about bearings secured by screws 96 and nuts 98 to depending portions 92 of slides 88, 88. To cause the grippers to move lengthwise of the shoe, the slides 88 supporting the grippers through the levers 84 are mounted for lengthwise movement in guideways 106 (Figs. 4 and 5) at opposite sides of the wiper carrier 16 and are moved forward yieldingly through springs 108 the forward ends of which are mounted in blocks 110 secured in recesses 114 of the slides 88 by pins 112. The rearward end of each spring is contained in a bore 11.6 in a slide 118 mounted for lengthwise sliding movement in the recess 114 of. cach slide 88. For retaining the slide 118 in the recess, cach slide 8S is provided with a key 122 which also lies in a slot 120 extending lengthwise in each slide 1.18, the key also acting as a stop to limit the relative movement of the slides 88 and 118 by contacting the forward end of the slot 120. The left-hand slide 118 is connected by a link 124 to an arm 126 (Fig. l) `while the righthand slide is connected by a link 124 to one arm 129 of a bell-crank lever 128, both the arm 126 and the bell-crank lever being xed by pins to the shaft 62 freely rotatable in bearings in the wiper carrier. The other arm 130 (Fig. 2) of the bell-crank lever is connected by a link 132 to a cam lever 134 which also carries a roll 136 lying in a track 138 in one side of a cam 140 fixed to the cam shaft 36. Through the connections described, the track 138 acts in the proper time relationshiptto the lengthwise movement of the wiper carrier 16 to advance yieldingly the slides 88 and hence thc grippcrs 82 carried by the levers 84.

To swing the grippers toward the shoe, cach lever 84 is provided with a rearwardly extending arm 107, (Fig. 3) from which a tension spring 100 extends to a depending portion 104 (Fig. 4) of one of the slides 88 to urge the front end of each lever 84 toward the shoe. Both levers, however, are held initially in outward positions away from the shoe by rolls 142 which are carried on pins 144 on the arms 102 and which lie in tracks 150 in cam plates 148, 148 secured to the wiper carrier. l\'lounted on each roll between a shoulder on the roll and the surface of the arm carrying it is a compression spring 146 (Fig. 6) which holds the roll up against a surface 151 contiguous with the track 150 of the plate 148. As the levers 84 move forwardly with the slides 88 relatively to the plates 148, the rolls 142 following the tracks 150 reach portions 152 (Fig. 3) of the tracks which then allow the springs 100 to swing the forward end of both levers 84 and hence the grippers toward the shoe. To vary the time that the grippers swing inwardly toward the shoe the plates 148 are adjustable lengthwise of the wiper carrier in a manner hereinafter described. The grippers swing inwardly until the leading edge of the grippers contact the upper of the shoe.

Each gripper 82 includes a bar 192 (Figs. 7 and 8) which is pivotally mounted at its outer end for swinging movements heightwise of the shoe about a pin 193 secured in an upstarlding portion of a block 194 having a threaded stud 196 secured in the frontend of one of the levers 84 by a nut 198, the block being x'ed against swinging movements relative to the leverby a tongueand-groove connection. Secured to each bar 192 by a screw 200 is an extension 202 having a downstanding `lip 203 which serves as one of the jaws of the gripper. Mounted for sliding movement in a recess in the extension 202 is a slide 206 the inner'end of which has teeth thereon and serves as the other jaw of thev gripper. Arranged to slide widthwise of the shoe on a' 'T-shaped section of the bar 192, Fig. 9J, is a slide 204 having a shelf portion 205 which cooperates with the vlip 203 and the slide 206 to provide a passageway'208 through which the toe binder is fed as hereinafter described. By means hereinafter described the wire is guided to move in a curved path below the wipers from the right-hand gripper to the left-hand gripper and to enter the space between the jaws of the latter.

For positioning the inward en d of the grippers heightwise for proper contact with the shoe, each slide 204 is connected by a pin 300 to the enlarged slotted head of a downwardly extending rod 308 which has mounted thereon two collars 309 and 310 (Fig. 7) and a spring 311 compressed between the collars. The collars are mounted for heightwise movements in alined bores 312 in two inwardly extending ears 314 of a member 316 which is mounted for heightwise adjustment on an adjusting screw 320 rotatably secured to the front end of a lever 322, Fig. 5, by a shoulder screw 324 and nut 326. A shoulder on the collar 310 restos on the upper surface of the lower ear 314 restraining the lowerend of the spring 311. The spring, bearing on the bottom of the collar 309, urges thecollar and hence the rod 308 upwardly to a position limited by engagement of a shoulder on the collar 309 with the lower surface of the upper ear 314 and by engagement of a nut l313 on the lower end of the rod with the bottom of the collar 310. Upward movement of the rod 308 acting through the pin 300 swings the inner end of the gripper heightwise about the pin 193. The initial heightwise position of each gripper, when positioned outwardly from the shoe, however, is determined by an eccentrically adjustable stop 328 on each slide 204 and riding on an inwardly inclined cam surface 332 of an extension 334 of Aeach slideJ 88. As the grippers are moved bodily toward the shoe bythe springs 100 the stops 328 ride along their adjacent inclined surfaces 332 allowing the springs 311 to swing the grippers heightwise until the shoulder on the collars 309 contact the upper ears 314 and the nuts 313 contact the bottom of the collars 310. In this manner each gripper is held in the proper heightwise position for engaging the shoe but is capable of independent yielding movements up or down against the action of its spring 311. To vary the heightwise position of the grippers in order properly to position the ends of the binder against the shoe, the members 316 are adjustable heightwise by rotation of their adjusting screws 320 against the resistance of a spring pressed plunger 327 contained in each of the members 316. 'l

To provide motion for gripping the wire, each gripper slide 206 (Fig. 8) is provided with two downstanding lugs 297 which lie in a slot 298 Vof the slide 204 and which embrace the pin 300 rotatably mounted in the slide 204 and in the head of the rod 308.. Each pin 300 has a tlat reduced portion 301 the purpose of which will hereinafter appear and at the rearward side of the slide 204 the pin is provided with an upstanding arm 302 which engages a pin 304 extending from the rear face of the slide 204 (Fig. 3). The forward end o f the pin 30,0 is provided with a slot restraining one end of a Atorsion spring 306 (Fig. 7) which rotates the pin clockwise, as viewed in Figs. 7 and 8, to a position'limited by the engagement of the arm 302 with the pin 304. While in this position, as shown in Figs. 7 and 8, the pin 300 is embraced at its full diameter'by the lugs 297. Each lever 3,22 carrying one of the members 316 and hence` a pin 300 is mounted for swinging movements toward the shoe about one of the bearings which' also sup'- ports one of the aforementioned levers 84 (Fig. 4). Each lever 322 has a rearwardly extending arm 336 (Figs. 3 and 4) cooperating with and lying in substantially the lsame plane as one of the arms 102 on a lever 84. Compression springs 338 with their ends contained in bores in the arms 336 and 102 constantly urge these arms apart. The arms 102, however, are prevented from swinging movement about the bearings 90 by the rolls 142, carried by the arm, being restrained by the cam tracks of the cam plates 148. The right-hand arm 336 is prevented from swinging movement away from its cooperating arm 102 by a pin 340 depending from the right-hand plate 148 engaging a surface 342 on the arm 336, while the lefthand arm 336 is restrained from swinging movement by a pin 344 in the wiper carrier 16 engaging a surface 346 on the left-hand arm 336. The effect of the relative immobility of the arms 336 and 102 is to maintain the slides 206 away from the lips 203 of both grippers 82 (Fig. 8) so the binder may be fed freely through the passages 208 in both grippers. As the slides 88, 88 move lengthwise relatively to the wiper carrier 16, being so moved by the action of the cam track 138 (Fig. 2), the pin 344 (Fig. 3) carried by the wiper carrier loses contact with the surface 346 of the left-hand arm 336 and rides along an angularly disposed surface 348 allowing the spring 338 to swing the left-hand arm 336 away from its cooperating arm 102. As the arm 336 swings, the front end of the left-hand lever 322 moves inwardly relatively to the left arm 84 causing the pin 300 in the left-hand gripper to move the slide 206 inwardly, clamping the left-hand end of the binder wire against the lip 203 of the left-hand gripper 82. Meanwhile the pin 340 (Fig. 3) carried by the right-hand plate 148 is still riding along the surface 342 of theright-'hand arm 336 preventing the slide 206 of the right-hand gripper from gripping the wire. Continued movement of the slides 88, 88 causes the left-hand gripper'to pull the binder wire from a reel 268 (Fig. 12) through the right-hand gripper and a wire guide 210 (Fig. 3). When the pin 340 carried by the right-hand plate 148 leaves the surface 342 of the right-hand arm 336 and rides along a surface 350 angularly disposed to the surface 342, the spring 338 swings the right-hand arm 336 away from its associated arm 102 causing the right-hand arm 322 acting through the member 316, rod 308 and pin 300 (Figs. 7 and 8) to clamp the slide 206 in the right-hand gripper against the binder, thus gripping the binder with the right-hand gripper. Further lengthwise motion of the slides 88, 88 exerts an equal pull on both ends of the binder by both grippers.

In a manner presently to be described the plates 148 may be adjusted lengthwise relatively to the wiper carrier to vary the timing of the closing of the right-hand gripper. As the position of the plates 148 are adjusted the pin 340 carried by the right-hand plate is moved lengthwise relatively to the position of the pin 344 carried by the wiper carrier 16 varying the time lag between the closing of the left-hand gripper and the right-hand gripper. By adjusting the plates 148, the length of time that the left-hand gripper is allowed to pull binder wire through the righthand gripper before the latter grips the wire may be varied to obtain a longer or shorter binder depending on the size of shoe being operated upon.

` To vary the length of binder wire in the manner just described as well as to vary the timing of the inward swing of the grippers for operating on shoes of different sizes, the cam plates 148 are mounted for lengthwise movement relative to the wiper carrier 16 in recesses 154 (Fig. 5) extending lengthwise at opposite sides of the carrier. The plates 148 are retained in the recesses 154 by retainers 156 one of which is shown in Fig. 5, secured in slots 158 in the carrier 16 by screws 160 and lying in a groove 161 in each plate 148, the plates also being supported on the upper surface of the arms 102.

Fastened to` inwardly extending lugs 162 (Fig. 3) at the rear of each plate 148 by screws 164 is a member 166 extending laterally between the plates and having two rearwardly extending arms 168. Pivotally secured to the arms 16S by pins 17() are two blocks 172 lying in slots 174 (Fig. 2) formed in two arms 176 which are joined together at their upper ends by a web and which are rotatably mounted on the aforementioned shaft 62 journaled on part of the wiper carrier 16. A lug 178 (Fig. l) on the upper left portion of the arms 176 carries a freely rotatable pin 179 which has an enlarged rectangular head having a vertically extending bore receiving the end of a rod 180 (Fig. l). The rod 180 extends forwardly through a bracket 182 fastened to a cover plate 183 on the wiper carrier 16 and through a hole in the plate and has threaded on its forward end a block 184 in which there is a spring-pressed plunger 186 having a knob 1.88. The plunger is arranged to be received in any one of six detent holes 190 in the cover plate 183. Through the connections described, the carn plates 148 may bc adjusted lengthwise relative to the wiper carrier 16 by moving the plunger 186 to any one of several detent holes 190. By setting the plunger 186 in one of the forward detent holes, the rolls 142 carried by the arms 102 must travel farther before contacting the portion 152 of the cam track 15G in the plates 148, thus delaying the inward swing of the grippers 82. Also, by thus advancing the position of pin 340 relatively to pin 344, the closing of the righthand gripper is timed to provide a longer binder wire. By setting the plunger in the rearward detent holes, the binder wire will be shorter and the grippers will swing inwardly toward the shoe at an earlier time.

Secured on the front end of the right-hand slide 88 (Fig. 3) is a bracket 258 (Fig. 3) to which is fastened by a screw 260 a bar 262 having a rearwardly extending portion 264 which serves as a wire-guiding nozzle in alinement with the passageway 208 in the right-hand gripper 82 when the parts are in their initial positions. From this nozzle a flexible wire guide 266 leads to a wire-feeding mechanism shown in Fig. 12. This mechanism is substantially similar to that disclosed in United States Letters Patent No. 2,638,610, granted on May 19, 1953, on an application filed in the name of the present inventor and will be herein described only to the extent necessary for understanding of the present invention.

The supply of binder wire Wis supported on a reel 268 (Fig. 12) rotatably mounted on a bracket 270 which is secured to the right-hand side of the machine frame. The wire from the reel passes between two feed wheels 272 and 274 which are connected together by a gear wheel 276 concentric with the feed wheel 272 and a gear wheel 278 concentric with the feed wheel 274. The gear wheel 276 is fast on a shaft 280 mounted in a bearing in the bracket. The inner end of the shaft is connected by means of one-direction ratchet clutch, not shown, to a pinion 282 in engagement with the teeth of an upwardly and downwardly extending rack bar 284 the lower end of which is pivotally connected to a lug 286 (Fig. 2) threaded into one end of a cam lever 288. The other end of the lever is provided with a roll 292 which rides on the periphery of the previously mentioned cam 140. Through the connections described, the cam 140 acts early in the machine cycle to feed the wire by moving the rack bar 284 in an upward direction. A spring 294 extending between the frame of the machine and the lug 286 acts to return the rack bar 284 to its downward position, as in Fig. 2, when the roll 292 and cam 140 allow such motion. The downward return movement of the rack bar causes no reverse movement of the feed wheels 272, 274 due to the slipping action of the one-direction clutch interposed between the pinion 280 and the feed wheel 272. To prevent reverse movement of the feed wheels 272, 274 the binder wire W is engaged frictionally by a brake member 296 (Fig. 12) which is one arm of a bell-crank lever pivotally mounted on the bracket 270 and controlled by a spring 298. From the feed wheels 272, 274 the wire is guided by the flexible wire guide 266 to the nozzle member 264. To vary the length of the binder wire as previously described for operating on shoes of different sizes, the left-hand gripper 32 is arranged to grip the wire before the right-hand gripper so as to pull wire from the reel 268 during the early portion of the forward movement of the grippers 82, the feed wheels 272, 274 moving freely with the advance of the binder wire at that time due to the slippage of the one-direction clutch in the feeding mechanism. ln a predetermined time relation, adjustable in a manner previously described, the right-hand gripper grips the wire preventing any further pulling of the wire from the reel 268 by the left-hand gripper.

To direct the wire from the right-hand gripper to the left-hand gripper there is provided a wire guide 210 which includes a substantially U-shaped member 212 having a rearward extension 214 (Fig. 11) secured by a screw 216 to a forward portion of the wiper carrier 16, see also Fig. 3. The member 212 has therein a guideway 218 for the wire. Arranged normally to close this guideway on the side toward the shoe is another substantially U- shaped member 220 having an upwardly extending flange 222 which lies in front of the guideway 218 when the member 220 is in its initial position. A downwardly extending arm 223 of the member 220 is mounted to swing about n pin 224 secured in the extension 21.4 of the member 212. Pivotally connected to the lower end of the arm 223 is a rod 226 extending rearwardly through a bore 228 in the wiper carrier. A spring 230 on the rod 226 extending between a shoulder on the forward end of the rod and the wiper carrier urges the arm 223 to swing in a clockwise direction as viewed in Fig. l1 to maintain the member 220 in position to close the guideway in the member 212 when the wiper carrier is in its initial position, as shown in Figs. 2 and 11. Mounted for swinging movement on a depending portion 232 of the extension 214 on the member 212 is a link 234 connected to an arm 236 by means of a shoulder screw 238 lying in a slot 240 in the lower end of the link 234. The arm 236 is fulcrumed on a shaft 242 which turns in lugs on the frame of the machine. Extending upwardly from the arm 236 above its fulerum is a cylindrical portion 244 having a bore 246 which receives a plunger 248. A spring 250 contained in a bore in the plunger 248 resting against the bottom of the bore 246 constantly urges the plunger in an upward direction. The upper end of the plunger 248 is formed to fit within a slot 252 cut in the lower surface of the wiper carrier 16 and to provide shoulders on the plunger which engage a surface 254 on the bottom of the carrier. Threaded on the rearward end of the rod 226 is a block 256 tting within the slot 252 in the wiper carrier, the block being arranged to contact the plunger 248 at the proper time. It should be noted that as the wiper carrier rises during its cycle of operation the plunger 248 will be constantly held up against the surface 254 by the spring 250. As the link 234 moves upwardly with the wiper carrier the lower end of the slot 240 in the link contacts the screw 238 swinging the arm 236 and its associated plunger 248 clockwise, as viewed in Fig. 11, to engage the block 256, as it moves forward with the wiper carrier, moving the block rearwardly against the action of the spring 230 and causing the member 220 to be displaced about its fulerum 224 from in front of the wire guideway 218 in t'he member 212.

Also in response to the upward movement of the wiper carrier 16, substantially at the end of that movement, the portion of the wire fed into the wire guide 212 and into the grippers 82 to serve as a toe binder is severed from the rest of the wire by a cutter 354 (Fig. l0) of which the cutting edge 356 is substantially contiguous to the rear face of the wire guiding nozzle 264. The cutter extends outwardly along the bar 262 and is loosely mounted to swing about a pin 350 journaled in a bore 352 (Fig. 3)'

armadas in the rear face of the bar. The cutter is constructed in such a manner that apair of springs 358 maintain the cutting edge 356 in close contact with the wire guiding nozzle, the springs also serving to return the cutter to its initial position about the pin 350. The outer end 360 of the cutter 354 is connected by a downwardly extending link 362 (Fig. l) to a rod 364 which extends downwardly through an eye 366 formed on a pin supported for rotary movement in a bore 368 in a bracket 370 secured Ato the frame of the machine. Fixed to the lower end of the rod 364 and spaced below the eye 366 is a collar 372 arranged to engage the lower face of the eye upon upward movement of the rod. As the wiper carrier 16 moves upward during the heightwise wiping cycle of the machine, the right-hand slide 88 moves up bodily with the carrier, carrying with it the rod 364.` When the collar 372 contacts the eye 366 the cutter 354 swings about the pin 350 causing the cutting edge 356 to shear the binder wire.

In timed relation to the advancing and closing movements of the wipers to wipe the marginal portion of the upper inwardly over the feather and against the rib of the insole, the grippers 82 having previously gripped the wire .binder are moved forwardly lengthwise of the shoe to pull the binder out of the guideway 218, inwardly under the wipers and against the upstanding margin of the upper and are also moved inwardly widthwise of the shoe to position the ends 0f the binder in proper position to be fastened to the insole rib. The above-mentioned forward and inward movements of the grippers both result from the forward movements of the slides 88, 88 along their guideways 106 in the wiper carrier, the forward movements being effected directly by the movement of the slides acting through the levers S4 and 322, and the inward movements being effected by the springs 100 and by the cam tracks 150 in the plates 148 acting on the rolls 142 mounted on the arms 102 of the levers 84. At the completion of the lengthwise movement of the gripper operating mechanism, the springs 108 are under compression resulting from movement of the bell-crank lever 128 and the arm 126.

When the wipers are at the limits of their first inward wiping movements over the shoe, the binder may first be pulled only part way inward under the wipers about the end of the toe by the action of the springs 108, the downward pressure of the wipers on the upper having been somewhat relieved to permit this to be done. When the wipers are partially retracted prior to the second and final wiping operation, the binder is pulled farther inwardly against the upstanding margin of the upper by expansion of the springs 108, and when the wipers are again moved inwardly and forced downwardly they press the binder rmly against the upper. The binder having thus been applied to the shoe and its opposite end portions having been positioned against the upper beyond the forward end of the wipers by the grippers 82, the cycle of operations of the wipers is interrupted with the wipers applying their full pressure to the upper to permit the binder to be fastened to the shoe.

For fastening the binder to the shoe the machine is provided with a pair of fastening inserting mechanisms 376 one'of which is shown in Fig. 13. These mechanisms are in most respects like the corresponding units shown in LettersPatent No. 2,420,684 which may be referred to for an understanding of their mode of operation. It should be suflicient, however, for the purpose of the present invention briefly to describe their structure and mode of operation.

Each fastener inserting mechanism comprises an anvil 378, throat 379, and staple forming and driving mechanism not shown. Attached to and moving with the staple driving mechanism is an arm 380 the purpose of which will presently appear. `lust before the cycle of operations of the wipers is interrupted, the operation of ,the fastener inserting mechanisms is automatically commenced. The anvils 378 move downwardly and outwardly to engage the insole rib a while the throats 379 move inwardly to engage the upper so that the rib, the margin of the upper, and the ends of the binder are clamped between the throats and the anvils. During the inward movement of the throats, the end portions of the binder, to be straddled and fastened by the staples, are positioned in proper relation to the staple guiding passageways in the throats in a manner fully disclosed in the above-mentioned Letters Patent. Meanwhile, the staples are formed and then driven over the ends of the binder and through the upstanding margin of the upper and the insole rib to be clinched against the anvils, in locations beyond the forward end of the wipers.

Before the fastener inserting units complete their staple driving operation the grippers 82 are caused to release the ends of the binder by the action of the arms 380 moving with the staple driving mechanisms swinging the aforementioned arms 302 of the grippers inwardly. As prevously described, both slides 206 of the grippers S2 were moved inwardly to grip the ends of the binder by movement of the levers 322 acting through the members 316, rods 308 and the pins 300. While the binder was being gripped each gripper slide pin 300 was embraced at its full diameter by downstanding lugs 297 of each slide 206. By Contact with the arms 380, the arms 302 on the rearward end of the pins 300 are swung clockwise, as viewed in Fig. 13, until the reduced portions 301 of the pins 300 are in line with the innermost of the lugs 297 of the slides 206. By such movement the lugs 297 are released from close engagement with the pins 300 so that the slides 206 no longer effectively grip the ends of the binder. At this time the'levers 322 are prevented from moving the pins 300 any appreciable inward distance under the urging of the springs 338 (Fig. 3) since a screw 382 threaded into each of the rearward arms 336 of the levers 322 (Fig. 3) riding in a bore 384 of each arm v102 and having a head 386 engaging a surface 388 on each arm 102 effectively limits the inward swing of each of the levers 322.

' When the grippers 82 release the ends of the binder, the springs 108 (Fig. 4) act on the slides 88 t0 move the grippers forwardly to clear the ends of the binder. As the slides 88 move forward, the rolls 142 (Fig. 6) on the arms 102 slide off the surfaces 151 of the tracks 150 in the plates l148 and rise against surfaces 390 of these plates to engage cam tracks 394 (Fig. 3).

When the fastener-inserting units have completed their staple driving operation, and return to their inactive position, the machine clutch is automatically actuated to cause the machine to complete its cycle of operations. During this part of the machine cycle the slides 88 and their associated levers 84 and 322 are moved rearwardly by the action of the cam track 138 (Fig. 2) and the grippers moving rearwardly ,with the slides 88 also are moved outwardly by the tracks 394 (Fig. 3) acting on the rolls 142. Near the end of the return movement of the slides 88 the surface 342 (Fig. 3) on the right-hand arm 336 contacts the pin 340 to open the right-hand gripper and the surfrace 346 on the left-hand arm 336 contacts the pin 344 to open the left-hand gripper.

The manner of the operation of the machine in so far as pertinent to the present invention will now be briefly summarized. The operator presents a shoe to the machine in a position determined by engagement of the plate 2 with the inner face of the rib at the toe end of the insole and then manually starts vthe cycle of operations of the machine. Substantially at the beginning of the cycle the toe rest 6 and the heel rest are moved into shoe supporting positions, the toe rest clamping the shoe upwardly against the pins 4. Early in the machine cycle the wipers 10 are advanced and closed to bring their wiping edges into positions for wiping the upper around I the toey heightwise of the last, and they are moved upwardly by upward swinging movement of the wiper carrier 16 to cause them thus to act on the upper. After the upward movements of the wipers they are further advanced and closed to wipe the marginal portion of the upper inwardly over the feather and against the rib of the insole. The wipers are then partially retracted and opened and are raised slightly totrelease their downward pressure on the upper, after which they are again moved inwardly to their fully advanced and closed positions and are moved downwardly to increase the pressure. At this point the wiping cycle is automatically interrupted by a cam operated clutch controlling means.

Early in the above-described portion of the machine cycle the wire feeding mechanism is operated to feed the binder wire through the right-hand gripper 82, along the curved guideway 218 around the toe and through the left-hand gripper. Thereafter, during the upward movement of the wiper carrier 16, the left-hand gripper 82 is closed on the binder wire by the spring 338 when the surface 346 of the left-hand arm 336 moves away from the pin 344. As the slides 88, being moved by the cam track 138, move the grippers forwardly, the left-hand gripper pulls additional wire through the still open righthand gripper. At a predetermined time, adjusted by changing the position of the plunger 186 according to the size of the shoe being operated upon, the surface 342 moves away from the pin 34() and the right-hand gripper closes on the binder wire stopping the passage of the wire through the gripper. In response to the continued upward movement of the wiper carrier the binder is severed from the remainder of the wire by the cutter 354 and the guideway 218 of the Wire is opened by the member 220. The grippers continue to be moved Forwardly by their operating mechanism to apply a yielding pull to the binder and are moved inwardly into engagement with the sides of the shoe by springs 100 in response to the movement of the rolls 142 in the tracks 150. During part of this motion of the grippers, the wipers are being operated to wipe the marginal portion ot the upper inwardly over the insole. At the completion of the movement of the gripper operating mechanism the springs S are under compression resulting from movement of the bell-crank lever 128 and the arm 126. The grippers thus pull the binder first into a position between the wipers and the upper at the extreme end of the shoe bottom, and when the wipers are thereafter partially retracted and also raised as hereinabove described, the grippers are operated by expansion of the springs 108 to pull the binder farther inwardly under the wiper into engagement with the upstanding margin of the upper, Immediately prior to the above-mentioned interruption in thc cycle of operation of the wipers, the fastener inserting units 376 are automatically set into operation. The action of the units locates the ends of the binder and drives staples to fasten the ends of\the binder to the upstanding margin of the upper and the rib of the insole in positions beyond the forward end of the wipers.

Prior to completion of the staple driving operation of the fastener inserting units the arms 380 moving with the staple driving mechanism engage the arms 302 on the gripper slide pins 300 to cause the grippers to open 'and release the binder. Upon release of the binder the grippers are moved forwardly to clear the ends of the binder by further expansion of the springs 108, it being understood that the binder at this time is held firmly in place against the upper around the toe by the pressure of the wipers.

After driving the staples, the fastener inserting units return to their starting positions and automatically cause the machine to resume its cycle of operation and to return to starting position those parts which have not already been returned. During this part of the cycle, the grippers 82 are moved rearwardly by the action of the cam track 138 and are moved outwardly by the action of the tracks 394 on the rolls 142.

While the machine herein shown is provided with means for applying to shoes binders made of wire, it is to be understood that in various novel aspects the invention is not limied to the use of binder material of that type.

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

t. In a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe and movable lengthwise of the last for pulling the binder to apply it to the upper, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, and gripper closing means operable during the movement of the grippers to close one gripper before the other for imparting an additional feeding movement to the binder material before the other gripper closes on the binder.

2. In a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe and movable lengthwise of the last for pulling the binder to apply it to the upper, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, gripper closing means operable during the movement of the grippers to close one gripper before the other for imparting an additional feeding movement to the binder material before the other gripper closes on'the binder, and means for modifying the action of said closing means to vary the length of binder material applied to the upper.

3. In a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted position. grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the upper, means for feeding binder material around the toe end of the shoe from one gripper to the other gripper, means for moving said grippers lengthwise of the last for pulling the binder to apply it to the upper, and gripper closing means operable in response to the movement of the grippers by said moving means to close one gripper before the other for imparting an additional feeding movement to the binder material before the other gripper closes on the binder.

4. In a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the upper, means for feeding binder material around the toe end of the shoe from one gripper to the other gripper, means for moving said grippers lengthwise of the last for pulling the binder to apply it to the upper, gripper closing means operable in response to the movement of the grippers by said moving means to close one gripper before the other for imparting an additional feeding movement to the binder material before the other gripper closes on the binder, and means for modifying the action of said closing means to vary the length of binder material applied to the upper.

5. In a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe, means for feeding binder material around the toe of the shoe from one gripper to the other gripper, means for moving said grippers lengthwise of the shoe for pulling the binder to apply it to the upper, gripper closing means operable in response to movement of the grippers by said moving means to close one gripper before the other for imparting an additional feeding movement to the binder material before the other gripper closes on the binder, and means for Y 13 moving the grippers widthwise of the shoe at a predetermined Atime after the operation of the gripper closing means.

6. In a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe, means for feeding binder material around the toe of the shoe from one gripper to the other gripper, means for moving said grippers lengthwise of the shoe for pulling the binder to apply it to the upper, gripper closing means operable in response to movement of the grippers by said moving means to close one gripper before the other for imparting an additional feeding movement to the binder material before the other gripper closes on the binder, means for modifying the action of said closing means to vary the length of binder material applied to the upper, and means for moving the grippers widthwise of the shoe at a predetermined time after the operation of the gripper closing means.

7. In a lasting machine, means f or working the toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, gripper supporting members mounted for movements lengthwise of the shoe,`levers mounted on said members for swinging movements widthwise of the shoe to close said grippers, mechanism for moving n said members to cause the grippers to pull the binder against the toe end of the shoe, and means operable in response to the movements of said lmembers by said mechanism and acting on said levers for closing one gripper before the other during their lengthwise movement, whereby the closed gripper is caused to pull additional binder material through the open gripper before the latter closes on the binder.

8. In a lasting machine, means for working the toe and portion of an upper of a shoe on a last into lasted posi- Vtion, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe `end of the shoe, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, gripper supporting members mounted for movements lengthwise of the shoe, levers mounted on said members for swinging movements widthwise of the Shoe to close said grippers, mechanism for moving said members to cause the grippers to pull the binder against the toe end of the shoe, means operable in response to the movements of said members by said mechanism and acting on said levers for closing one gripper `before the other during their lengthwise movement,

whereby the closed gripper is caused to pull additional binder material through the open gripper before the latter closes on the binder, and means for modifying the action of said gripper closing means to vary the relative closing time between the grippers whereby the length of binder fed by the first closed gripper may be varied.

9. In a lasting machine, means for working the toe end portion of an upper on a last into lasted position, grippers forgripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, members mounted for movements lengthwise of the shoe,

'gripper closing levers mounted on said members for swinging movements widthwise of the shoe, gripper supporting levers also mounted on said members for movement widthwise of the shoe, mechanism for moving said members to cause the grippers to pull the binder against the toe end of the shoe, means operable in response to movement of said members by said mechanism and acting on said gripper closing levers for closing said grippers, and means also operable in response to movements of 14 said members by said mechanism and acting on said gripper supporting levers for moving the grippers widthwise of the shoe at a predetermined time after the grippers have been closed.

l0. In a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted postion, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, members mounted for movements lengthwise of the shoe, gripper closing levers mounted on said members for swinging movements widthwise of the shoe, gripper supporting levers also mounted on said members for movements widthwise of the shoe, mechanism for moving said members to cause the grippers to pull the binder against the toe end of the shoe, means operable in response to movement of said members by said mechanism and acting on said gripper closing levers for closingone gripper before the other during their lengthwise movement whereby the closed gripper is caused to pull additional binder material through the open gripper before the latter closes von the binder, and means also operable in response to movement of said members by said mechanism and acting on said gripper supporting levers for moving the grippers widthwise of the shoe at a predetermined time after the operation of said gripper closing means.

l1. In a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, members mounted for movements lengthwise of the shoe, gripper closing levers mounted on said members for swinging movements widthwise `of the shoe, gripper supporting levers also mounted on said members for movements widthwise of the shoe, mechanism for moving said members to cause the grippers to pull the binder against the toe end of the shoe, means operable in response to movement of said members by said mechanism and acting on said gripper closing levers for closing one gripper before the other during their lengthwise movement whereby the closed gripper is caused to pull additional binder material through the open gripper before the latter closes on the binder, means for modifying the action of said gripper closing means to vary the relative closing time between the grippers whereby the length of binder fed by the rst closed gripper may be varied, and means also operable in response to movement of said members by said mechanism and acting on said gripper supportinglevers for moving the grippers widthwise of the shoe at a predetermined time after the operation of said gripper closing means.

12. In a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, gripper supporting members mounted for movements lengthwise of the shoe, gripper closing levers mounted on said members for swinging movement widthwise of the shoe, mechanism for moving said members to cause said grippers to pull the binder against the toe end of the shoe, and means operable in response to the movement of said members by said mechanism for swinging the lever on one of said members before swinging the lever on the other of said members to close one gripper before the other during their lengthwise movement to cause the rst closed gripper to pull additional binder material through the open gripper before the latter closes on the binder.

13. In a lasting machine, means for working the 15 toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, gripper supporting members mounted for movements lengthwise of the shoe, gripper closing levers mounted on said members for swinging movement widthwise of the shoe, mechanism for moving said members to cause said grippers to pull the binder against the toe end of the shoe, means operable in response to the movement of said members by said mechanism for swinging the lever on one of said members before swinging the lever on the other of said members to close one gripper before the other during their lengthwise movement to cause the first closed gripper to pull additional binder material through the open gripper before the latter closes on the binder, and means for modifying the action of said gripper closing means to vary the relative closing time between the grippers, whereby the length of binder fed by the closed gripper may be varied.

14. In a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, members mounted for movements lengthwise of the shoe, gripper closing levers mounted on said members for swinging movements widthwise of the shoe, gripper supporting levers also mounted on said members for movements widthwise of the shoe, mechanism for moving said members to cause said grippers to pull the binder against the toe end of the shoe, means operable in response to the movement of said members by said mechanism for swinging the gripper closing lever on one of said members before swinging the gripper closing lever on the other of said members to close one gripper before the other during their lengthwise movement to cause the first closed gripper to pull additional binder material through the open gripper before the latter closes on'the binder, and means also operable in response to the movement of said members by said mechanism and acting on said gripper supporting levers for simultaneously moving the grippers widthwise of the shoe at a predetermined time after the closing of the grippers.

l5. In a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, members mounted for movements lengthwise of the shoe, gripper closing levers mounted on said members for swinging movements widthwise of the shoe, gripper supporting levers also mounted on said members for movements widthwise of the shoe, mechanism for moving said members to cause said grippers to pull the binder against the toe end of the shoe, means operable in response to the movement of said members by said mechanism for swinging the gripper closing lever on one of said members before swinging the gripper closing lever on the other of said members to close one gripper before the other during their lengthwise movement to cause the lrst closed gripper to pull additional binder material through the open gripper before the latter closes on the binder, means for modifying the action of said gripper closing means to vary the relative closing time between the grippers, whereby the length of binder fed by the closed gripper may be varied, and means also operable in response to the movement of said members by said Cil mechanism and acting on said gripper supporting levers for simultaneously moving the grippers widthwise of the shoe at a predetermined time after the closing of the grippers. t

16. In a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, members mounted for movements lengthwise of the shoe, gripper closing levers mounted on said members for swinging movement widthwise of the shoe, gripper supporting levers also mounted on said members for movement widthwise of the shoe, mechanisrn for moving said members to cause the grippers to pull the binder against the toe end of the shoe, means including a pair of connected cam plates operable in response to the movement of said members by said mechanism and cooperating with said levers for closing the grippers on the binder and for moving the grippers widthwise of the shoe, said earn plates having tracks therein acting on one of said gripper supporting levers on each of said members, whereby the grippers are moved widthwise of the shoe at a predetermined time during the lengthwise movement of the grippers, and a pin carried by one of said cam plates arranged to engage one of said gripper closing levers to delay the closing on the binder material of one of the grippers after the closing of the other gripper on the binder material whereby the rst closed gripper is caused to pull additional binder material through the open gripper during their lengthwise movement before the latter closes on the binder.

17. ln a lasting machine, means for working the toe end portion of an upper of a shoe on a last into lasted position, grippers for gripping at the opposite sides of the last respectively binder material extending around the toe end of the shoe, means for feeding binder material around the toe end of the shoe from one of said grippers to the other gripper, members mounted for movements lengthwise of the shoe, gripper closing levers mounted on said members for swinging movement widthwise of the shoe, gripper supporting levers also mounted on said members for movement widthwise of the shoe, mechanism for moving said members to cause the grippers to pull the binder against the toe end of the shoe, means including a pair of connected cam plates operable in response to the movement of said members by said mechanism and cooperating with said levers for closing the grippers on the binder and for moving the grippers widthwise of the shoe. said cam plates having tracks therein acting on one of said gripper supporting levers on each of said members, whereby the grippers are moved widthwise of the shoe at a predetermined time during the lengthwise movement of the grippers, a pin carried by one of said cam plates arranged to engage one of said gripper closing levers to delay the closing on the binder material of one of the grippers after the closing of the other gripper on the binder material whereby the first closed gripper is caused to pull additional binder material through the open gripper during their lengthwise movement before the latter closes on the binder, and means for modifying the action of said cam plates for varying the relative closing time between said grippers, whereby the length of binder fed by the first closed gripper may be varied, said modifying means also varying the timing of the widthwise movement of the grippers according to the length of the binder wire.

No references cited.

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