US2804634A - Lasting machines - Google Patents

Description

Sept. 3, 1957 R. M. BOWLER ET AL LAS'I'ING MACHINES Filed March 7, 1956 6 Sheets-Sheet 1 In v en 'zors Raymond M B 0 wZeT Melvin CZamp Sept. 3, 1957 R. M. BOWLER ET AL 2,804,634

LASTING MACHINES Filed March '7, 1956 6 Sheets-Sheet 2 In 1) en fors RaymondMBowZer MeZvi-n Clamp Sept. 3, 1957 R. M. BOWLER ET AL' LASTING MACHINES 6 Sheets-Sheet 3 Filed March 7. 1956 I I l l|||| II,

R. M. BOWLER ET AL Sept 3, 1 957 LASTING MACHINES e Shets-Sheet 5 Filed March '7, 1956,

Invenfors F i w M M d n 0 m n Meluin Clamp Sept. 3, 1957 R. M. BOWLER ETAL 2,804,634

LASTING MACHINES Filed March 7. .1956 6 Sheets-Sheet 6 w a M .13 7 a g 7 [I L {I lllllllllzlllllllzllfu @L I a2 Inven fors Raymond M50 vvZer Me [pip Clamp LASTIN G MACHINES Raymond M. Bowler, Salem Depot, N. H., and Melvin Clamp, North Andover, Mass., assignors to United Shoe Machinery Corporation, Fiemington, N. 3., a corporation of New Jersey Application March 7, 1956, Serial No. 579,127

28 (Ilaims. (Cl. 1.2-7.1)

This invention relates to lasting machines, and particularly to improvements in toe lasting machines of the type disclosed in United States Letters Patent No. 2,324,509, granted July 20, 1943, in the name of Bernhardt Jorgensen. It will be understood, however, that in certain aspects the invention is of broader utility and not limited to use in a machine of that particular type or to the exact mechanical construction herein illustrated.

In the Jorgensen machine, during an automatic operating cycle, the upper materials are first wiped heightwise around the toe end of a last by an end embracing toe former and thereafter the lasting margin of the upper materials is wiped inwardly over the bottom of an insole on the last by means of wipers. Prior to such overwiping action, an inner layer, or layers of the upper materials are trimmed away by trimming means and a cement nozzle is moved heightwise of the shoe into engagement with the bottom of an insole adjacent to the toe end of the shoe, this cement nozzle being arranged to apply adhesive to the lasting margin of the upper materials as the lasting margin is wiped inwardly over the bottom of the insole by the aforementioned wipers. For tensioning the upper materials to shape them around the toe end of the last, machines of this type are provided with a plurality of grippers adapted to seize the lasting margin of the upper materials in different locations around the toe end of the last and to exert a tensioning pull on these materials as the upper materials are wiped upwardly around the toe end of the last by the toe former. These grippers release the upper materials as the trimming means is operated and prior to the wiping of the lasting margin of the upper materials inwardly over the insole. In some instances, as disclosed for example in United States Letters Patent No. 2,337,558, granted on December 28, 1943, in the name of Bernhardt Iorgensen, the upper tensioning and forming operations may be repeated on the single remaining layer of the upper materials left after the trimming operation has been performed.

It is an object of this invention to improve toe lasting machines of the aforementioned type by providing a less complicated and relatively inexpensive, yet dependable and effective, arrangement for tensioning the upper materials and also by utilizing the same toe embracing wipers for wiping the upper materials of a shoe heightwise around the toe end of a last as are thereafter used for wiping the upper materials inwardly over the bottom of an insole on the last. With this object in view, the here in illustrated machine which, in common with prior machines of the type here under consideration, has means for trimming away an inner layer of the upper materials after the upper materials have been wiped heightwise around the toe end of a last and a cement nozzle movable into engagement with the bottom of an insole on the last, prior to the inward wiping of the upper materials over the bottom of the insole, is provided with end embracing wipers which are adapted, in an automatic operating cycle of the machine, first to wipe the upper materials heightited States Patet wise around the toe end of a last and thereafter to wipe the upper materials inwardly over the bottom of an insole on the last, and with means for holding the lasting margin of the upper materials outspread over the wipers during their heightwise wiping action, thus causing the upper materials to be tensioned and shaped around the toe end of the last. More particularly, the means for holding the lasting margin of the upper materials outspread over the wipers includes a plurality of retarder members adapted to engage an inner layer of the upper materials and to exert a variably predetermined yielding pressure thereon during the upwiping operation, and means are provided for withdrawing these retarder members from engagement with the upper materials as the trimming means is operated.

After the inner layer, or layers, of the upper materials have been trimmed away and as the retarder members are Withdrawn from engagement with the upper materials, there is a tendency for the lasting margin of the outer layer of the upper materials to assume a position such as to interfere with the cement nozzle as the nozzle is moved heightwise of the shoe into engagement with the bottom of the insole. Thus, in accordance with a feature of the invention, the means for operating the retarder members is adapted, in addition to withdrawing these members from engagement with the upper materials prior to the trimming operation, to cause the retarder members to spread the upper materials outwardly over the wipers just prior to the movement of the nozzle into engagement with the insole. Preferably this is accomplished by moving the retarder members relatively to the wipers from a position over the toe end of the insole outwardly over the wipers.

In the herein illustrated machine, the wipers are carried on a support which is movable heightwise of the shoe being lasted and the retarder members are associated with a support also movable heightwise of the shoe being lasted. For the purpose of causing these retarder members to exert a yielding pressure on the upper materials which remains constant during the upwiping of the upper materials, a yieldable means is interposed between the wiper support and the support for the retarder members. More particularly, this yieldable means comprises a spring which is adjustable to vary the pressure exerted by the retarder members on the upper materials. Means are also provided from moving the support for the retarder members heightwise of the shoe against the resistance of the aforementioned spring to permit the withdrawal of the retarder members from engagement with the upper materials during the trimming operation.

The above and other objects and features of the invention will appear in the following detailed description of a preferred embodiment thereof which is illustrated in the accompanying drawings, and will be pointed out in the claims.

In the drawings,

Fig. l is a view in side elevation and with certain parts broken away of a portion of a lasting machine embodying features of the invention;

Fig. 2 is a detail view, with certain parts shown in vertical section of a portion of the wiper operating mechanism;

Fig. 3 is a plan view, with certain parts in horizontal section, showing other parts of the wiper operating mechanism;

Fig. 4 is a plan view at an enlarged scale of a retarder mechanism provided in the machine shown in Fig. 1;

Fig. 5 is a view in vertical section substantially on line VV of Fig. 4 and looking in the direction of the arrows;

Fig. 6 is a view in vertical section substantially on line 3 VI-VI of Fig. 4 and looking in the direction of the arrows;

Fig. 7 is a view in vertical section substantially on line VIIVII of Fig. 4 and looking in the direction of the arrows;

Fig. 8 is a view in front elevation of an insole holddown device provided in the machine shown in Fig. 1;

Fig. 9 is a plan view of certain parts of the retarder mechanism shown in Fig. 4;

Fig. 10 is a plan view of other parts of the retarder mechanism;

Fig. 11 is a plan view of the operating elements of the machine; and

Figs. 12 through 16 are different step views illustrating the different positions assumed by various operating elements during a complete operating cycle of the machine.

Referring particularly to Fig. 1 of the drawings, the machine therein illustrated is in general similar to the lasting machine disclosed in the above-mentioned patent to Jorgensen No. 2,324,509, modified in some respects as taught in United States Letters Patent No. 2,663,036, granted December 22, 1953, in the name of Bernhardt Jorgensen. Thus, this machine has a shoe rest 20, a toe rest 22 (see Fig. 12) which is moved upwardly to clamp the shoe against the shoe rest by fluid pressure operated mechanism not shown herein but which is similar to that provided in the prior Jorgensen machines, and a heel rest 24 likewise actuated by fluid pressure operated mechanism, not shown herein but similar to that of the prior Jorgensen machines. For wiping the upper materials of a shoe upwardly around the toe end of a last and for thereafter Wiping the lasting margin of the upper materials inwardly over the bottom face of an insole on the last, the herein illustrated machine has a pair of wipers 30, 38 (Figs. 3 and 11) which are associated with a wiper carrier 32 supported by and operated by mechanism mounted on a wiper support which is indicated in the drawings by the reference character 34, Fig. 1. This wiper operating mechanism includes a fluid pressure operated piston 24, Fig. 3, corresponding to the piston 718, Fig. of the Jorgensen Patent No. 2,663,036, and yieldable means, including plungers 26 and springs 28, corresponding to the springs 738 and plungers 740 associated with this piston, tending to urge the carrier 32 to the left, see Fig. l, to the extent permitted by a latch member 36, corresponding to the latch member 734 of the Jorgensen patent. In the present construction, this latch member is provided with an inclined surface 38, Fig. 2, adapted to cooperate with a wear plate 39 for a purpose which will presently appear.

This wiper support is mounted for movement in a direction extending heightwise of a shoe being lasted by means of mechanism which includes a pair of arms 40, 40, connected at their inner ends to portions of a frame construction 42 and at their outer ends to the support by means of pins 44, 44. Referring to Fig. 3, it will be seen that there are two other arms 40, 40 on the opposite side of the machine. For thus moving the wiper support 34 there are provided two pistons, one of which appears in Fig. 1 and is identified by the reference character 50. These two pistons each operate in a cylinder 52 mounted on the frame 42 to which fluid under pressure is admitted through a duct 54, and the arrangement is similar to that disclosed in detail in the Jorgensen Patent No. 2,663,036, referred to above.

In order to provide for a tensioning of the upper materials around the toe end of the last, hitherto effected in the prior Jorgensen machines by means of fluid pressure operated grippers, the herein illustrated machine has three retarder, or distributor fingers 60, 62, 62, see especially Figs. 4 and 5, for clamping the lasting margin of the upper materials yieldingly against the upper surface of the wipers during the heightwise movement of these wipers to wipe the upper materials around the toe .end of the last. The retarder finger 60'is secured, by means of a screw 63, to the outer end of an elongated bar 64 on which there is mounted, by means of screws 66, 66, dowels 68, 68, and spacer blocks 70, 72, a cover plate 74, Fig. 5. Each of the retarder fingers 62 is secured by means of a screw 76 to the outer end of an arm 78 which, at its inner end, is pivoted on a stud 80 which is mounted on the bar 64, see also Fig. 9. Also pivoted on the stud 80 are two upper arms 82, 82, each provided with a wedging surface 84. These upper arms are each connected to their companion lower arms by means of a roller 86, carried by a block 88 and fitting in a slot 90 in the lower arm 78. Each of these blocks is slidably received within a slot 92 formed in one of the upper arms and is threaded to receive an adjusting shaft 94. These adjusting shafts are held against axial movement relatively to the upper arms 82 by means of flanges 96, 96 and are operatively connected to adjusting knobs 98, one of which appears in Fig. 1 and Fig. 4, mounted on the frame 42, by means of universal joints 100, 102, and shafts 104, Fig. 1.

The bar 64 is slidably mounted within a guideway 110, formed in a platform 112, and is held in place therein by means of gibs 114, 116, Figs. 6 and 7. This bar is provided with a slot 120, Fig. 5, into which there projects a pin 122 mounted in one end of a block 124. The block 124 is slidably mounted between the bar 64 and the cover plate 74 and is cut away at one end as indicated at 126 in Fig. 9, to fit around the spacer block 72. Adjacent to this end, the block 124 is provided with a pair of angularly disposed wedging surfaces 128, 128. Pivotally mounted on the platform 112 by means of a stud 130 is a bellcrank lever 132 having two arms 134, 136, Fig. 4. The arm 134 of this bell-crank lever is connected by means of a link 138, to the block 124 and, by means of a second link 140, to a piston 142. This piston is fitted within a cylinder 144, mounted on the platform 112. A coil spring 146, stretched between the arm 136 of the bellcrank lever 130 and a pin 148, tends to hold the block 124 in the position shown in Figs. 4 and 9, with stop abutments 150, formed on the arms 78, held yieldingly against the opposite sides of the spacer block 70, through the action of wedging surfaces 84, 84 and 128, 128. As will be apparent, when fluid under pressure is admitted to the cylinder 144, through a duct 152, the block 124 will be moved to the right, Fig. 5, upwardly in Figs. 4 and 9, by the piston 142, thus withdrawing the wedging surfaces 128, 128 from the wedging surfaces 84, 84 and releasing the arms 78, 78. Also, when the pin 122 reaches the end of the slot 120, continued movement of the piston 142 will cause the bar 64, together with the parts which are carried thereby, to move to the right, Fig. 5, or upwardly as 'viewed in Figs. 4 and 9.

The bar 64 and the parts carried thereby are normally held in the positions in which they are shown in Figs. 4 and 5, by means of a latch member which is slidably mounted in a groove 162 formed in the platform 112, Fig. 4. V This latch member carries a pin 164 which is received within a slot 166 in one end of an arm 168. This arm is pivotally mounted at its other end on a pin 170 and carries a roller 172. The block 124 has a laterally extending portion 173 on which there is formed an inclined cam surface 174 against which the roller 172 is yieldingly held by means of a leaf spring 176 acting on the arm 168, Fig. 9. During the initial movement of the block 124, the latch member 160 is withdrawn from engagement with the bar 64 thus releasingthis bar for subsequent movement by the piston 142, as above stated. As is shown more clearly in Fig. 9 of the drawings, the inner end of the latch member 160 and the adjacent end of the bar 64'are provided with cooperating inclined surfaces 178, 180. The bar 64 also has a pair of stop shoulders 182, 184, see Fig. 10. Slidably mounted in a guideway 186 formed in the platform 112 is a stop member 188 which is normally in the position shown in Fig. 10 so that the action of the leaf spring 176 and theaforementioned inclined surfaces 178, tend to hold the stop shoulder 132 snugly against the stop member 188; As will presently appear, this stop member is withdrawn, against the resistance of a spring 190, at a certain point in the operating cycle of the machine, and thereafter the bar 64 and the parts which are carried thereby are moved to the left, Fig. 5, downwardly, Figs. 4 and 10, to a different position which is determined by the engagement of the shoulder 184 with a stop pin 192.

The platform 112 is pivotally mounted on a table 200 by means of shafts 202, 2 12 which extend through hearing brackets 204, 204, secured to the table, see Figs. 4 and 5. Mounted on one of the shafts 202 and secured to the platform 112 is an arm 21% which carries a stop screw 212. Connected to this arm by means of a link 214 is a piston 216 which is fitted within a cylinder 218, mounted on the table 220. A coil spring 221}, st: etched between a pin 222 on the arm 210 and another nin 224 mounted on the cylinder 218, tends to swing the arm in a counterclockwise direction as viewed in Fig. l. Swinging movement of the platform 112 in a clockwise direction, as viewed in Fig. 5, is effected by means of the piston 216 when fluid under pressure is admitted to the cylinder 213 through a duct 226.

When the parts are in the positions shown in Fig. 5, the platform 112 is held against swinging movement in a clockwise direction by means of a latch member 230 having an operating end 232 which is held in engagement with a stop surface 234- formed on a stop bar 236, by means of a spring 238. This latch member is slidably mounted within a guideway 241 formed on the platform 112 and projects into a clearance groove 242 formed in the table 200, see Fig. 7. The stop bar 236 is secured to the table 2% by means of screws 244, see Fig. 6. For withdrawing the latch member 230 from engagement with the stop bar 236, thereby to release the platform 112 for swinging movement in a clockwise direction by the piston 216, there is mounted in the bar 64 a pin 250, Fig. 5. The platform 112 is provided with a clearance groove 252 for this pin and a similar clearance groove 254 is formed in the stop bar 236. Therefore, when the bar 64 and parts carried thereby are moved to the right, Fig. 5, by the piston 142, the pin 2% will eventually engage a shoulder 256 formed on the latch member 230 and force this member to the right against the action of the spring 233. Before the platform 112 is swung in a counterclockwise direction by the spring 220, as duct 226 is connected to exhaust, the bar 64 and the parts cairied thereby, will have been moved to the left, Fig. 5, by the action of spring 146, as duct 152 is connected to exhaust. Thus the latch member 231? will be returned to its operative position, determined by a stop pin 258, Fig. 10, by the spring 238, and when the platform 112 is returned to the position shown in Fig. 5, this latch member will reengage the surface 234- on the stop bar 236.

Referring to Fig. 4 of the drawings, it will be noted that the stop member 188 has connected to it one end of a flexible Wire 2611 which extends through a guide flange 262 formed on an extension 264 of the gib 116. The other end of this wire is anchored, by means of a screw 266, to a block 268 which is adjustably mounted on the table 209 by means of screws 271B, 270. With this arrangement, when the platform 112 is swung upwardly, i. -e., in a clockwise direction as viewed in Fig. 5, the stop member 188, see Fig. 10, will be withdrawn from its operative position. Therefore, as the bar 64 and parts carried thereby are moved to the left, Fig. 5, by the spring 146, before the platform 112 is returned to the position in which it is shown in Fig. 5 by the spring 221 this bar will assume a position determined by the stop pin 1192. Subsequently, as the bar 64 is moved to the right for a second time during the operating cycle, the stop member 188 will be returned to its operative position by the spring 190, Fig. 10.

The table 2% is secured at its opposite edges to a pair of side members 281 by means of screws 282, Fig. 1.

These two side members, both of which appear Fig. 3 of the drawings, are each supported on the outer end of an arm 284, by means of a link 286, these arms being secured to a cross shaft 288. Formed in each side member 280 are two arcuate slots 2% in which there are received the ends of the pins 44 which connect the aforementioned arms to the wiper support 34. Interposed between an adjusting screw 292 threaded through an abutment 294, carried by the wiper support, and a block 296 secured to the lower end of one of the side members 281 is a compression spring 298 which tends to urge the side members 280 and the parts carried thereby to the position shown in Fig. 1, as determined by an adjustable stop screw 300 mounted in one of the arms 284. For elevating the two side members 280, together with the parts carried thereby, for a purpose which will presently appear, a piston 392, mounted in a cylinder 3114, is provided. This piston is operatively connected to one of the arms 234 by means of a link 306 having a slot 3118 therein which receives a pin 310 mounted in the aforementioned arm. Thus, when fluid under pressure is adrnitted to the cylinder 304, beneath the piston 302, through a duct 312, the piston will be elevated and the shaft 238 will be rotated in a clockwise direction, Fig. 1, to lift the side members 280 and the parts which are carried thereby. Also, when the piston 3132 is in the position shown in Fig. l, a certain amount of upward movement of the arms 284 and also of the side members 280 and the parts which are carried thereby, for a purpose that will presently appear, will be permitted by the movement of the pin 31% in the slot 3%.

Generally in accordance with the disclosure of Jorgensen Patent No. 2,324,509, referred to above, the herein illustrated machine is provided with upper trimming means including a knife 400 movable lengthwise of the shoe being lasted and a pair of knives 402, 4112 movable widthwise of the shoe, Fig. 11, and a cement nozzle 494, Figs. 1 and 16. The knife 490 is mounted on an operating member 405 which, together with the knives 41, 2, is carried on an arm 410, and all of these knives are arranged to be operated by means of mechanism, not herein shown, which is similar to that disclosed and described in detail in the last-mentioned Jorgensen patent. Similarly, the cement nozzle 400 is associated with a heated cement pot 412, which is mounted on the aforementioned arm 419, and mechanism, not shown, but similar to that disclosed and described in the last-mentioned Jorgensen patent, is provided for delivering heated cement from the cement pot to the nozzle at an appropriate time in the operating cycle of the machine.

As is the case in the prior Jorgensen machine, the arm 410 is secured to a post 414 which is arranged to be rotated and moved axially by mechanism, not shown, but similar to that of the last-mentioned Jorgensen patent, for the purpose of presenting the upper trimming knives and the cement nozzle to operative positions at predetermined times in the operating cycle of the machine in the manner described in detail in the Jorgensen patent. Also mounted on the arm 410 is an insole holddo-wn 420 corresponding in general to the member 860 of Jorgensen Patent No. 2,324,509, referred to above. In the herein illustrated machine, this holddown is mounted on the lower ends of two rods 422, 422 which are slidably supported in guide sleeves 424, 424 associated with the arm 41%. These two rods, and the holddown 421) which is carried thereby, are urged yieldingly downwardly, Fig. 8, to the extent determined by a stop collar 426 on one of the rods 422, by means of compression springs 428, 428.

Figs. 12-16 are a series of step views intended to illustrate the operation of the machine of this invention and especially the functions performed by the retarder fingers 60, 62, 62 acting in combination with the wipers 3t 30, the trimming knives 400, 402 and the cement applying nozzle 4114. In these views, the machine is shown as 7 operating on the toe end of a shoe comprising multiply upper materials, including an upper U and a lining L, assembled on a last La, together with an insole I. It will be understood that the wipers 30, 30 are operated to wipe the upper materials heightwise around the toe end of the last and thereafter to wipe the lasting margin of the upper inwardly over the insole by means of fluid pressure operated mechanism which is similar to that disclosed in the aforementioned Jorgensen patents, see especially Patent No. 2,663,036 and which includes the pistons 50, Fig. 1, and the piston 24, Fig. 3. As shown in Fig. 3, the piston 24 is located in a cylinder 500 to which conduits 5&2 and 5%, corresponding to conduits 730, 732 of the Jorgensen Patent No. 2,663,036, are connected. In order to provide for a yielding closing action of the wipers 3t}, 30, springs 506, 506 are associated with the wiper operating levers 508, 508. Also, the arm 410 is swung about the axis of the post 414 and is moved upwardly and downwardly to position the trimming knives and the cement nozzle, respectively, in operative position,

ous positions in which they are shown in Fig. 1 of the drawings with the wiper support 34 and the table 206 in their lowermost positions. Thus, an operator in presenting a shoe to the machine, can bring the toe end of its last La, exposed by turning back the upper materials as shown in Fig. 12, against the retarder finger 60 with the sides of the toe end of the last embraced by the retarder fingers 62, 62, the latter fingers having been previously adjusted, by turning the knobs 98, 93 to accommodate the particular size of shoe being lasted. Now, in response to an initial depression of the starting treadle, the toe rest 22 will be elevated to clamp the shoe firmly against the shoe rest 20, see Fig. 11, and the heel rest 24, see Fig. 1, will be moved into engagement with the heel end of the shoe. The operator may now inspect the shoe and determine whether it is in the proper position in the machine and if so, an automatic operating cycle of the machine may be initiated in response to a second depression of the treadle. Otherwise, by means of a sec- 0nd control member, not shown, the toe rest 22 and heel rest 24 may be returned to their original positions and the shoe released for repositioning in the machine by the operator.

During the early portion of the automatic operating cycle, the wiper support 34 is elevated, see Fig. 13, to cause the wipers 30, 30 to wipe the upper materials around the toe end of the last. At first, the wiper support 34 moves upwardly, relatively to the two side members 280, and, due to the action of the ends of the pins 4-4, 44 in the arcuate slots 290, 290, these side members and the parts carried thereby, including, of course, the retarder fingers 60, 62, 62, are moved slightly to the right, Fig. 1, thereby causing the retarder fingers to spread the lasting margin of the upper materials outwardly over the wipers. At this time in the operating cycle, upward movement of the side members 280, 280 is prevented by the action of the spring 298. Soon, however, the lasting margin of the upper materials is clamped against the lower sides of the retarder fingers 60, 62, 62 with a pressure which is determined by the setting of the spring 298. As the wipers continue to move upwardly, the side frames 280, 280, table 290, and the retarder fingers will move upwardly therewith as is permitted by the movement of the pin 310 in the slot 308, the pressure of the retarder fingers on the lasting margin of the upper materials rewardly moving knives 480, 462, 4&2.

maining constant since the abutments 294 and 296 now move upwardly in unison. As will be apparent, during this continued upward movement of the wipers, the lasting margin of the upper materials will be drawn out from between the wipers and the retarders, thereby exerting a tensioning pull on the upper materials, the intensity of which may be varied by changing the setting of the spring 298. Just before the wiper support 34 begins its upward movement, the arm 410 is moved downwardly so as to bring the holddown 420 into engagement lltll the insole and also to locate the trimming knivcs 40%, 462 in operative position relatively to the toe end of the shoe, as is shown in Fig. 13.

The upward movement of the wiper support 34 is terminated just as the wipers 30, 3t reach their wiping level, i. e., the level of the bottom of the insole I, see Fig. 14. During the upward movement of the wiper support 34, the conduit 504 is connected to exhaust as is also the conduit 5412 so that the wiper carrier 32 and the wipers 3t 39 are moved yieldingly toward the toe end of the shoe being lasted, i. e., to the left, Figs. 12 and 13, by the action of plungers 26 and springs 28. Such movement of the carrier 32 is, however, controlled by the action or" the inclined surface 33 on the latch 36 as this surface travels along the wear plate 39, 2, in a manner which will be apparent. As shown in 2, the position of the wiper carrier and hence of the wipers, relatively to the toe end of the shoe being lasted, may be varied by means of an adjusting screw 51% associated with the latch 36. Also, as the wiper carrier is moved toward the shoe, the wipers 30, 30 are yieldingly closed through the action of the springs 506, 5&6, Fig. 3. As the wipers reach their wiping level, the wear plate 39 is elevated above the upper end of the latch, thus releasing t. e carrier for a slight additional movement by the plungers 26, which movement advances and closes the wipers just enough to snub the upper materials over the edge of the insole as is indicated in Fig. 14 of the drawings. Hence, when the lasting margin of the upper materials is released by the withdrawal of the retarder fingers 6t), 62, 62 from ongagement therewith during the trimming operation, the upper materials will be held against loosening around the toe end of the last.

Next, the trimming knives 401 4&2, 4tl2 are operated to trim away the margin of the inner layer of the upper materials, i. e., the lining L, and just as these knives commence their movements, fluid under pressure is admitted to the cylinder 144, Fig. 4-, thus causing the block 124 to be retracted by the piston 142, i. e., moved to the right as viewed in Fig. 5, until the pin 122 engages the right-hand end of the slot 120. Inasmuch as the retarder fingers are at this time exerting pressure on the upper materials outspread on the wipers, Fig. 13, further movement of the block 124 is prevented. Immediately there after, and before the knives 469, 492, 4&2 have moved far enough to strike the retarder fingers, fluid under pressure is admitted to the cylinder 304, Fig. 1, thus causing the piston 362 to elevate the table 260 slightly and enough to relieve the pressure of the retarder fingers on the upper materials. Now, the retarder fingers are withdrawn from engagement with the upper materials by a continued movement of the block 124 by the piston 142, these retarder fingers retracting just ahead of the out- At the conclusion of the trimming operation the arm 4-10 is elevated to carry the trimming knives, and also the insole holddown 42% upwardly away from the bottom of the shoe.

As the bar 64 and retarder fingers which are carried thereby are fully retracted, the latch member 230, Fig. 5, is engaged by the pin 250 and moved to the right, thereby disengaging this latch from the stop bar 236. immediately thereafter, fluid under pressure is admitted to the cylinder 218, Fig. 4, thereby causing the piston 216 to swing the platform 112 in a clockwise direction, Fig. 5, so

that the bar 64 and other parts carried thereby, assume the position indicated generally in broken lines in Fig. 15. Fluid under pressure is now exhausted from the cylinders 144 and 218 so that the block 124 is returned by spring 146 to a position somewhat to the left of that in which it is shown in Fig. with the bar 64 now in a position determined by the engagement of the shoulder 184 with the pin 192, Fig. 10, while the platform 112 is swung back to its original position, as shown in Fig. 5, by the spring 220, the retarder fingers now assuming positions over the toe end of the insole, as indicated by the retarder finger 60 shown in full lines in Fig. 15.

The arm 410 now swings to locate the nozzle 4% over the toe end of the shoe and then moves downwardly to bring the nozzle into engagement with the insole at the toe end of the shoe, as indicated in Fig. 16. As the nozzle is thus being moved downwardly, fluid under pressure is again admitted into the cylinder 144, thereby causing piston 142 to retract the bar 64 to the position in which it is shown in Fig. 16. During this retraction of the bar 64, the retarder fingers 60, 62, 62 move outwardly to spread the lasting margin of the upper U over the wipers, as indicated in Fig. 15 (see broken-line showing of retarder 60) and in Fig. 16. Thus, the lasting margin of the upper materials is prevented from assuming a position in the way of the descending nozzle. As the block 124 continues its movement, the latch 230 will again be released, but inasmuch as cylinder 21% is at this time connected to exhaust, the platform 112 remains in the position shown in Fig. 5.

Next, the wipers 30, 30 are advanced and closed to wipe the lasting margin of the upper U inwardly over, and to press the lasting margin firmly against, the bottom surface of the insole I to which heated adhesive has been applied through the nozzle 4%. During the advancing and closing movements of the wipers, the nozzie 404 acts as a distributor, or additional retarder, in the manner explained in detail in the above-mentioned Jorgensen patents, the machine eventually coming to a stop with the wipers in pressing engagement with the lasting margin of the upper. As in the machines of the prior Jorgensen patents mentioned above, in response to a third depression of the treadle, the operating cycle is completed .and the various parts returned to their original positions,

as shown in Fig. 1.

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

1. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, means adapted to engage an inner layer of said upper materials for holding the lasting margin of said upper materials outspread over the wipers during said heightwise wiping of the upper materials, means for trimming away said inner layer of the upper materials after the upper materials have been wiped heightwise around the toe end of the last, and means for withdrawing said holding means from engagement with said inner layer of the upper materials as the trimming means is operated.

2. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, means adapted to engage an inner layer of said upper materials for holding the lasting margin of said upper materials outspread over the wipers with a yielding pressure during said heightwise wiping of the upper materials, means for trimming away said inner layer of the upper materials after the materials have been wiped heightwise around the toe end of the last, and means for withdrawing said holding means from engagement with said inner layer of the upper materials as the trimming means is, operated.

3. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, means adapted to engage an inner layer of said upper materials for holding the lasting margin of said upper materials outspread over the wipers with a variably predetermined yielding pressure during said heightwise wiping of the upper materials, means for trimming away said inner layer of the upper materials after the materials have been wiped heightwise around the toe end of the last, and means for withdrawing said holding means from engagement with said inner layer of the upper materials as the trimming means is operated.

4. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, means comprising a plurality of retarder members adapted to engage an inner layer of said upper materials for holding the lasting margin of said upper materials outspread over the wipers during said heightwise wiping of the upper materials, means for trimming away said inner layer of the upper materials after the materials have been wiped heightwise around the toe end of the last, and means for withdrawing said retarder members from engagement with said inner layer of the upper materials as the trimming means is operated.

5. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, means comprisinga plurality of retarder members adapted to engage an inner layer of said upper materials for holding the lasting margin of said upper materials outspread over the wipers with a yielding pressure during said heightwise wiping of the upper materials, means for trimming away said inner layer of the upper materials after the materials have been wiped heightwise around the toe end of the last, and means for withdrawing said retarder members from engagement with said inner layer of the upper materials as the trimming means is operated.

6. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, means comprising a plurality of retarder members adapted to engage an inner layer of said upper materials for holding the lasting margin of the upper materials outspread over the wipers with a variably predetermined yielding pressure during said heightwise wiping of the upper materials, means for trimming away said inner layer of the upper materials after the materials have been wiped heightwise around the toe end of the last, and means for withdrawing said retarder members from engagement with said inner layer of the upper materials as the trimming means is operated.

7. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a cement applying nozzle movable in a direction extending heightwise of a shoe being lasted into engagement with the bottom of the insole adjacent to the toe end of the shoe after the upper materials have been wiped heightwise around the toe end of the last and prior to the operation of the wiper to wipe the upper materials inwardly over the bottom of the insole, and means for spreading the lasting margin of the upper materials outwardly over the wipers just prior to movement of the cement nozzle into engagement with the insole.

8. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a cement applying nozzle movable in a direction extending height- 11 wise of a shoe being lasted into engagement with the bottom of the insole adjacent to the toe end of the shoe after the upper materials have been wiped heightwise around the toe end of the last and prior to the operation of the wiper to wipe the upper materials inwardly over the bottom of the insole, and means movable relatively to the wipers for spreading the lasting margin of the upper materials outwardly over the wipers just prior to movement of the cement nozzle into engagement with the insole.

9. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a cement applying nozzle movable in a direction extending heightwise of a shoe being lasted into engagement with the bottom of the insole adjacent to the toe end of the shoe after the upper materials have been wiped heightwise around the toe end of the last and prior to the operation of the wiper to wipe the upper materials inwardly over the bottom of the insole, and means including a plurality of movable members for spreading the lasting margin of the upper materials outwardly over the wipers just prior to movement of the cement nozzle into engagement with the insole.

10. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a cement applying nozzle movable in a direction extending heightwise of a shoe being lasted into engagement with the bottom of the insole adjacent to the toe end of the shoe after the upper materials have been wiped heightwise around the toe end of the last and prior to the operation of the wiper to wipe the upper materials inwardly over the bottom of the insole, and means including a plurality of members movable from positions over the insole at the toe end of the last to positions over said wipers for spreading the lasting margin of the upper materials outwardly over the wipers just prior to movement of the cement nozzle into engagement with the insole.

11. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, means for trimming away an inner layer of said upper materials after the materials have been wiped heightwise around the toe end of the last, a cement nozzle movable in a direction extending heightwise of the last into engagement with the bottom of the insole adjacent to the toe end of the shoe after the upper materials have been wiped heightwise of the last and the inner layer thereof has been trimmed away by said trimming means and before the upper materials are wiped inwardly over the bottom of the insole, means adapted to engage an inner layer of said upper materials for holding the lasting margin of said upper materials outspread over the wipers during said heightwise wiping of said upper materials, and operating means for withdrawing said holding means from engagement with the upper materials as the trimming means is operated and for thereafter causing said holding means to spread the upper materials outwardly over the wipers just prior to the movement of the nozzle into engagement with the insole.

12. In a lasting machine having a pair of end embracing wipers fer wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, means for trimming away an inner layer of said upper materials after the materials have been wiped heightwise around the toe end of the last, a cement nozzle movable in a direction extending heightwise of the last into engagement with the bottom of the insole adjacent to the toe end of the shoe after the upper materials have been wiped heightwise of the last and the inner layer thereof has been trimmed away by said trimming means and before the upper materials are wiped inwardly over the bottom of the insole, means adapted to engage an inner layer of said upper materials for holding the lasting margin of said upper materials outspread over the wipers with a yielding pressure during said heightwise wiping of the upper materials, and operating means for withdrawing said holding means from engagement with the upper materials as the trimming means is operated and for thereafter causing said holding means to spread the upper materials outwardly over the wipers just prior to the movement of the nozzle into engagement with the insole.

13. In a lasting machine having a pair of end embracing wipers for wiping the upper materiais of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, means for trimming away an inner layer of said upper materials after the materials have been wiped heightwise around the toe end of the last, a cement nozzle movable in a direction extending heightwise of the last into engagement with the bottom of the insole adjacent to the toe end of the shoe after the upper materials have been wiped heightwise of the last and the inner layer thereof has been trimmed away by said trimming means and before the upper materials are wiped inwardly over the bottom of the insole, means adapted to engage an inner layer of said upper materials for holding the lasting margin of said upper materials outspread over the wipers with a variably predetermined yielding pressure during said heightwise Wiping of the upper materials, and operating means for withdrawing said holding means from engagement with the upper materials as the trimming means is operated and for thereafter causing said holding means to spread the upper materials outwardly over the wipers just prior to the movement of the nozzle into engagement with the insole.

14. in a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and there after inwardly over the bottom of an insole on the last, means for trimming away an inner layer of said upper materials after the materials have been wiped heightwise around the toe end of the last, a cement nozzle movable in a direction extending heightwise of the last into engagement with the bottom of the insole adjacent to the toe end of the shoe after the upper materials have been wiped heightwise of the last and the inner layer thereof has been trimmed away by said trimming means and before the upper materials are wiped inwardly over the bottom of the insole, means comprising a plurality of retarder members adapted to engage an inner layer of said upper materials for holding the lasting margin of said upper materials outspread over the wipers during said heightwise wiping of the upper materials, and operating means for withdrawing said retarder members from engagement with the upper materials as the trimming means is operated and for thereafter causing said retarder members to spread the upper materials outwardly over the wipers just prior to the movement of the nozzle into engagement with the insole.

15. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, means for trimming away an inner layer of said upper materials after the materials have been wiped heightwise around the toe end of the last, a cement nozzle movable in a direction extending heightwise of the last into engagement with the bottom of the insole adjacent to the toe end of the shoe after the upper materials have been wiped heightwise of the last and the inner layer thereof has been trimmed away by said trimming means and before the upper materials are wiped inwardly over the bottom of the insole, means comprising a plurality of retarder members adapted to engage an inner layer of said upper materials for holding the lasting margin of said upper materials outspread over the wipers with a yielding pressure during said heightwise wiping of the upper materials, and operating means for withdrawing said retarder members from engagement with the upper materials as the trimming means is operated and for thereafter causing said retarder members to spread the upper materials outwardly over the wipers just prior to the movement of the nozzle into engagement with the insole.

16. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and there after inwardly over the bottom of an insole on the last, means for trimming away an inner layer of said upper materials after the materials have been wiped heightwise around the toe end of the last, a cement nozzle movable in a direction extending heightwise of the last into engagement with the bottom of the insole adjacent to the toe end of the shoe after the upper materials have been wiped heightwise of the last and the inner layer thereof has been trimmed away by said trimming means and before the upper materials are wiped inwardly over the bottom of the insole, means comprising a plurality of retarder members adapted to engage an inner layer of said upper materials for holding the lasting margin of the upper materials outspread over the wipers with a variably predetermined yielding pressure during said heightwise wiping of the upper materials, and operating means for withdrawing said retarder members from engagement with the upper materials as the trimming means is operated and for thereafter causing said retarder members to spread the upper materials outwardly over the wipers just prior to the movement of the nozzle into engagement with the insole.

17. In a lasting machine having a pair of end embracing wipers for Wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a support for the wipers mounted for movement heightwise of a shoe being lasted, means for holding the lasting margin of the upper materials outspread over the wipers during the heightwise wiping of said upper materials, a support for said holding means mounted for movement heightwise of the shoe being lasted, and yieldable means interposed between said wiper support and said holding means support for causing said holding means to exert a uniform yielding pressure on said upper materials during the heightwise wiping of the upper materials by said wipers.

18. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a support for the wipers mounted for movement heightwise of a shoe being lasted, means for holding the lasting margin of the upper materials outspread over the wipers during the heightwise wiping of said upper materials, a support for said holding means mounted for movement heightwise of the shoe being lasted, yieldable means interposed between said wiper support and said holding means support for causing said holding means to exert a uniform yielding pressure on said upper materials during the heightwise wiping of the upper materials by said wipers, and means for moving said holding means support heightwise of the shoe relatively to the wiper support against the resistance of said yieldable means for withdrawing said holding means from engagement with the upper materials.

19. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a support for the wipers mounted for movement heightwise of a shoe being lasted, means for holding the lasting margin of the upper materials outspread over the wipers during the heightwise wiping of said upper materials, a support for said holding means mounted for movement heightwise of the shoe being lasted, and adjustable spring means interposed between said wiper support and said holding means support for causing said holding means to exert a uniform pressure on said upper materials during the heightwise wiping of the upper materials by said wipers.

20. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a support for the wipers mounted for movement heightwise of a shoe being lasted, means for holding the lasting margin of the upper materials outspread over the wipers during the heightwise wiping of said upper materials, a support for said holding means mounted for movement heightwise of the shoe being lasted, adjustable spring means interposed between said wiper support and said holding means support for causing said holding means to exert a uniform yielding pressure on said upper materials during the heightwise wiping of the upper materials by said wipers, and means for moving said holding means support heightwise of the shoe relatively to the wiper support against the resistance of said adjustable spring means for withdrawing said holding means from engagement with the upper materials.

21. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a support for the wipers mounted for movement heightwise of a shoe being lasted, means including a retarder member for holding the lasting margin of the upper materials outspread over the wipers during the heightwise wiping of said upper materials, a support for said retarder member mounted for movement heightwise of the shoe being lasted, and yieldable means interposed between said wiper support and said retarder member support for causing said retarder member to exert a uniform yielding pressure on said upper materials during the heightwise wiping of the upper materials by said wipers.

22. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a support for the Wipers mounted for movement heightwise of a shoe being lasted, means including a retarder member for holding the lasting margin of the upper materials outspread over the wipers during the heightwise wiping of said upper materials, a support for said retarder member mounted for movement heightwise of the shoe being lasted, yieldable means interposed between said wiper support and said retarder member support for causing said retarder member to exert a uniform yielding pressure on said upper materials during the heightwise wiping of the upper materials by said wipers, and means for moving said retarder member support heightwise of the shoe relatively to the wiper support against the resistance of said yieldable means for withdrawing said retarder member from engagement with the upper materials.

23. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end or" a last and thereafter inwardly over the bottom of an insole on the last, a support for the wipers mounted for movement heightwise of a shoe being lasted, means including a retarder member for holding the lasting margin of the upper materials outspread over the wipers during the heightwise wiping of said upper materials, a support for said retarder member mounted for movement heightwise of the shoe being lasted, and adjustable spring means interposed between said wiper support and said retarder member support for causing said retarder member to exert a uniform yielding pressure on said upper materials during the heightwise wiping of the upper materials by said wipers.

24. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a support for the wipers mounted for movement heightwise of a shoe being lasted, means including a retarder member for holding the lasting margin of the upper materials outspread over the wipers during the heightwise wiping of said upper materials, a support for said retarder member mounted for movement heightwise of the shoe being lasted, adjustable spring means interposed between said wiper support and said retarder member support for caus-- ing said retarder member to exert a uniform yielding pressure on said upper materials during the heightwise wiping of the upper materials by said wipers, and means for moving said retarder member support heightwise of the shoe relatively to the wiper support against the resistance of said adjustable spring for withdrawing said retarder member from engagement with the upper materials.

25. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a support for the wipers mounted for movement heightwise of a shoe being lasted, means including a plurality of retarder members for holding the lasting margin of the upper materials outspread over the wipers during the heightwise wiping of said upper materials, a support for said retarder members mounted for movement heightwise of the shoe being lasted, and yieldable means interposed between said wiper support and said retarder member support for causing said retarder members to exert a uniform yielding pressure on said upper materials during the heightwise wiping of the upper materials by said wipers.

26. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a support for the wipers mounted for movement heightwise of a shoe being lasted, means including a plurality of retarder members for holding the lasting margin of the upper materials outspread over the wipers during the heightwise wiping of said upper materials, a support 16 V for said retarder members mounted for movement heightwise of the shoe being lasted, yieldable means interposed between said wiper support and said retarder member support for causing said retarder members to exert a uniform yielding pressure on said upper materials during the heightwise wiping of the upper materials by said wipers, and means for moving said retarder member support heightwise of the shoe relatively to the wiper support against the resistance of said yieldable means for withdrawing said retarder members from engagement with the upper materials.

27. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a support for the wipers mounted for movement heightwise of a shoe being lasted, means including a plurality of retarder members for holding the lasting margin of the upper materials outspread over the wipers during the heightwise wiping of said upper materials, a support for said retarder members mounted for movement heightwise of the shoe being lasted, and adjustable spring means interposed between said wiper support and said retarder member support for causing said retarder members to exert a uniform yielding pressure on said upper materials during the heightwise wiping of the upper materials by said wipers.

28. In a lasting machine having a pair of end embracing wipers for wiping the upper materials of a shoe first heightwise around the toe end of a last and thereafter inwardly over the bottom of an insole on the last, a support for the Wipers mounted for movement heightwise'of a shoe being lasted, means including a plurality of retarder members for holding the lasting margin of the upper materials outspread over the wipers during the heightwise wiping of said upper materials, a support for said retarder members mounted for movement heightwise of the shoe being lasted, adjustable spring means interposed between said wiper support and said retarder member support for causing said retarder members to exert a uniform yielding pressure on said upper materials during the heightwise wiping of the upper materials by said wipers, and means for moving said retarder member support heightwise of the shoe relatively to the wiper support against the resistance of said adjustable spring means for withdrawing said retarder members from engagement with the upper materials.

No references cited.

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