US2639446A - Machine for operating on shoes - Google Patents

Description

y 1953 H. A. IMHOF 2,639,446

' MACHINE FOR OPERATING 0N SHOES Inventor HermanAJm/wf y 1953 H. A. IMHOF 2,639,446

MACHINE FOR OPERATING ON SHOES Filed April 17, 1951 4 Sheets-Sheet 2 Inventor May 26, 1953 H. A. IMHOF MACHINE FOR OPERATING 0N SHOES 4 Sheets-Sheet 3 Filed April 17, 1951 .iI E

Inventor Herman A. [mhof IIIIIIIIIII y 6, 1953 H. A. IMHOF 2,639,446

MACHINE FOR OPERATING 0N SHOES Filed April 17, 1951 4 Sheets-Sheet 4 Patented May 26, 1953 UNITED STATES PATENT OFFICE 2,639,446 7 MACHINE roa- OPERATING N SHOES Herman A. Imhof, Beverly, Mass, assignor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application April 17, 1951, Serial No. 221,482

This invention relates to machines for use in operating on shoes, and more particularly, to lasting machines of the type disclosed in United States Letters Patent No. 2,201,866, issued May 21, 1940, in the name of Robert H. Lawson, certain portions of which are shown and described in more detail in United States Letters Patent No. 1,854,204, issued April 19,1932, also in the name of Robert H. Lawson.- It 'is to be understood, however, that certain features of this invention are not limited to use in lasting machines or to embodiment in machine organizations of the exact kind exemplified in these prior patents. 1

Machines of the kind disclosed in the aforementioned patents are provided with a jack for supporting a shoe and for feeding it, step by step, relatively to a pair of lasting units each including a gripper for tensioning the upper materials and a fastening-inserting mechanism comprising an overlaying member, and means for driving fastenings therethrough to secure the lasting margin of the tensioned upper materials in lasted position, in different locations from breastline to tip line along the opposite side of the bottom of the shoe, progressively, during a plurality of successive operating cycles of the lasting units. Before the sidelasting operation is performed, theshoe is pulled over and the upper materials, adjacent to the toe end of the last and back to the vicinity of the tip line, are secured by tacks driven into the last, in locations adjacent to the marginal edges of the shoe bottom, at the extreme end of the toe, just'in front of the tip line and, in some cases, also just to the rear of the tip line. As' the lasting operation proceeds from breastline to tip line, it sometimes happens, during an" operating cycle of the lasting units; that the overlaying members, as they are advanced over theshoe bottom prior to the driving of fastenings 'therethrough, strike these pulling-over tacks, or some of them, and either push these tacks tarther into the last or bend themover, thus rendering it quite diflicult t remove these tacks at a later stage in the manufacture of the shoe. 7

One object of this invention is to provide in machines of this general type and having a pair of devices for operating progressively, along the opposite sides of the bottom 'Of a shoe, means for removing fasteningsprevi-ously inserted into the shoe and thereby eliminating diiiiculties of the kind mentioned above. With this object in view, and in accordance with'a. feature of the invention, the lasting devi es of the herein illus- 26 Claims. (Cl. 12--10.3)

trated machine are each'provided with a member operable to remove fastenings previously'inserted into the shoe, in locations adjacent to the marginal edges of the shoe bottom, during the operation-of the machine. More particularly, each of these lasting devices, or units, is provided with a tack pulling member operable to remove fastenings from the shoe together with mechanism for rendering these tack-pulling members operative during predetermined operating cycles of the lasting units. The mechanism for rendering the tack-pulling members operative may include a cam,rotated in time relation to the feeding movements'of the jack and so shaped as to effect operation of these members during those operating cycles when the lasting units are operating in the vicinity ofthe'tip line of the shoe.

To facilitate their actions, these tack-pulling members'are' mounted for movements in directions extending heightwise and transversely of the shoe" bottom, and such movements are imparted, respectively, to these members by wirefeeding mechanisms, associated with fasteninginserting mechanisms of, the lasting devices, and the overlaying members already mentioned. The mechanism for rendering the tack-pulling members operative includes means, controlled by the" aforementioned cam, for connecting these members to' elements of the wire-feeding mechanisms which move in directions extending heightwise'of "the shoe bottom and means are provided for elevating the tack-pulling members to po'sitio'ris'well above the bottom of the shoe, during those operating cycles of the lasting units when these members are disconnected from these vertically moving elements. To avoid possible damage to the parts, which might result if the tack-pulling membersgor either of them, were prevented from' completing their movements transversely of the shoe'bottom, yielding "con- 'nections are provided between these tack-pulling members and the overlaying members of the lasting devices'which'as already pointed out, impart such transversemov'ements thereto.

To avoid pullingup portions of the upper materials which have been tensioned during the pulling-over operation and secured by the pulling-over tacks, in the vicinity of the tip line of the shoe,'the machine disclosed in the patent to Lawson No. 2,201,866 is provided with mechanis'm for rendering the gripper jaws of each of the lasting units inoperative to close on the upper materials during predetermined operating cycles of these units. Also, "to avoid possible interference of these jaws with the upstanding portions of the upper materialsgas the jack feeds the shoe, means including a control cam are provided for reducing the extent of downward movements of the gripper jaws by decreasing the downward movements of the gripper-actuating members, during those operating cycles when the gripper jaws are inoperative. The mechanism for rendering the gripper jaws inoperative includes latch members associated with the gripper-actuating members and adapted to connect the gripper jaws to the actuating members, thereby preventing the closing of these jaws, which is eifected as a result of relative movement between the jaws and the actuating members, when the extent of downward-movement of these members is reduced, during predetermined operating cycles of the lasting units. When complete downward movements are imparted to these actuating members, during all other operating cycles of the units, these latch members are rendered ineffective by engagement with fixed stop pins'associated'withthe units.

However, in the machineof theliawson patent, the actuating memhersare moved upwardly,- first to close the gripper'jaws'onthe upper materials andthen to cause these jaws to apply tension thereto, through mechanism which .is adapted to yield when a predetermined pull has been 'applied 'by these jaws. Asithe lasting operation approaches the tip lined the shoe, in which vicinity the upper materials have previously been tensioned, the resistance to further tensioning may be so great that the gripper jaws, after closing on the upper materials, are moved upwardly only a very short distance, or not at all.

Thus, during the next succeeding operating cycle of the lasting'units in whichlthedownward movements of the'gripper-actuatingmembers are reduced, the gripper jaws may not be opened or, if opened, the latch members willnot be rendered ineffective by engagement with the fixed stop pins mentioned above. In the first case, the upper materials still gripped by the jaws of the grippers will be distorted, or torn, during the next feeding movement of'the jack while, in the second case, the gripper jaws will close on the upper materials during the next operating cycle and, since the downward movements of the actuating members are reduced even more in this cycle, will remain 'closed'when the shoe is fed along by the jack, with'the aforementioned undesirable results.

It is, therefore, another'object of this invention to provide improved means for rendering the gripper jaws of a machine of this type inoperative, during those operating'cycles which occur when the lasting units are operating in "the vicinity of the :tip line of ia'shoe, which is efiective and certain in operation regardless of whether 01 not the resistance to further tensioning of the upper materials has prevented, or limited, upward movement of the gripper jaws. With this object in view, in the herein illustrated machine the stop pins, heretofore fixed, are mounted for movements in directions away from engagement with the latch members and means, controlled in part by the mechanism for rendering the tack-pulling members operative and in part by the operation of the fastening-inserting drivers, is provided for imparting such movements to these pins. More particularly, when the tack-pulling members are rendered operative, springs associated with these shafts are placed under tension, rotation thereof being at this time preyented by detent members arranged to en- 4 gage links also connected to these shafts. These detents are adapted to be tripped, thereby to release these shafts to the action of the springs when the fastening-inserting drivers are operated, during the next succeeding operating cycle of the units. Thus, when the gripper-actuating members are moved downwardly in that operating 'cycle,'the stop pins will have' been displaced well below their normal positions in which they would have engaged the latch members, and re- 'gardless of the heightwise position of the gripper jaws these latch members will be rendered effective.

Further to assure that these latch members will certainly'connect the gripper jaws to their "actuating members and thereby render these jaws inoperative to close on the upper materials, the cam which controls the extent of downward movement of the gripper-actuating members is so modified that these actuating members are moved downwardly totheiu-ll extent during the aforementioned operatingv cycle, after the stop pins have beendisplaced as above explained, and before the beginning of thenext succeeding operating cycle, zthis-cameffects-an upward movement of the gripper-actuating members. As. the gripper-actuating members are thus moved upwardly, the gripper jawsremain open since they have-previously been connected to these actuating members by the latch-members which were rendered inefl ective as a result of the downward displacement of the stoppins. Preferably, and in the herein illustratedmachine, the cam which associated with the mechanism for rendering the tack-pulling members operative is so shaped that these members :operate during the last three operating cycles of the lasting units while the gripper jaws are rendered inoperative and the downward movements of the gripper-actuating members reducedtherebyto maintain the open gripper jaws well above the upper materials, during the last two operating cycles of the lasting units.

Theaboveand other objects and features of the invention will beset forth in the following detailed description of the embodiment illus-- trated in the accompanying drawings, and will be pointed out in the claims.

In the drawings,

Fig. l-is ea view in side elevation of a lasting inachine embodying the features of theinven- Fig. 2 is view in side elevation and at an enlargedscale of a portion of the machine shown in Fig. 1;

Fig. is a view in side elevation showing a portion of the lasting .unit which appears on the left inFig. 2, withcertain parts omitted, and others broken away. to simplify the disclosure:

Figs. 4 and are views in front elevation of a portion of the lasting. unit which appears on the right in Fig. 1, these viewsillustrating the parts in diiferent positions assumed during the operation of the machine and with certain other parts omitted to simplify the disclosure;

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

Fig. 7 is a view in side elevation of the lasting unitwhich appears on the, right in Fig. 2 as seen from its opposite side, with certain parts in section and others omitted to simplify the disclosure and Figs. 8 and 9. areviews inside elevation of a portion of the lasting. unit which appears on the left in Fig. 2 as viewed from the opposite sides thereof, with certain parts in section and others broken away.

Referring to these drawings, and particularly to Figs. 1 and 2 thereof, the lasting machine therein illustrated is similar to that disclosed in the Lawson Patent No. 2,201,866, referred to above, but is provided with fastening-inserting mechanisms of the type disclosed in United States Letters Patent No. 2,418,140, issued on April 1, 1947, in the names of Charles A. Robinson and Herman A. Imhof. Thus this machine has a jack 20 for supporting a shoe and for feeding it relatively to a pair of lasting units, indicated generally by the reference characters 22, 22. These lasting units are mounted on and are operated by mechanism contained within a head casting 24 which is supported upon a column 26 of suitable height, Fig. 1 Each of the two lasting units are of identical constructionand com rise similar operating elements, these units, however, being mirror images of each other, as will be apparent from Fig. 2. Hence, the corresponding elements of each unit are identified by similar reference characters and, in the following detailed description, reference to either one of the units will be considered as applying to the other.

Each of the lasting units comprise a housing I00 with which there are associated an anvil I02, gripper jaws I04, I06, and a fastening-forming and inserting mechanism including an overlaying member or nozzle I08, these several elements being constructed in the same manner, and operated by means of mechanism which is the same as that disclosed in the aforementioned patents to which reference may be made for such details as are not herein described. Associated with each of the lasting units is a plunger IIO which is arranged to be reciprocated, by means of a slide H2, in predetermined time relation to the operation of the lasting units for actuating mechanism for feeding wire to the fasteningforming and inserting mechanisms. The wirefeeding mechanism and the means for reciprocating these two plungers is similar to that provided in the machines disclosed in the aforementioned patents and is described in more detail in the Lawson Patent No. 1,854,204, referred to above. As will be readily understood from an examination of the aforementioned patents, the lasting machine so far described is arranged to operate in different locations, from breastline to tip line, along the opposite sides of a shoe supported on the jack 20, progressively, in a plurality of operating cycles, the upper materials. indicated by the reference character U, in each location being seized and tensioned over the last L by the gripper jaws I04, I05, wiped in over the bottom of the shoe and feather of the insole I by the overlaying members I08, and secured in lasted position by fastenings driven through the lasting margin of the upper materials and insole rib R and clenched against the anvils I02. Y

Prior to the side-lasting operation, the shoe is, of course, pulled over and the upper materials adjacent to the toe end of the last and back to the tip line secured to the insole by means of tacks, one at the extreme end of the toe, two on each side of the shoe just ahead of the tip line and, in some instances, one on each side of the shoe just to the rear of the tip line. As already suggested, to avoid pulling up the upper materials thus previously tensioned and secured to the insole by these tacks, the machine illus-' 6, dated in'the Lawson Patent No. 2 201,866 is'pro vided with means for rendering the gripper jaws I04, I06 of each lasting unit inoperative during the last two operating cycles of the machine, while the last two pairs of upper fastenings are driven through the nozzles, or overlaying members, I08. It frequently happens, however, as these nozzles are advanced over the shoe bottom, prior to the driving of the fastenings, that they strike the ulling-over tacks, Or some of them, and either push these tacks further into the last, or bend them over, thus rendering the subsequent tack-pulling operation much more difficult to perform. To avoid such' difficulty, as well as to eliminate a separate tack-pulling operation, the herein illustrated machine is provided with means for removing the pulling-over tacks located adjacent to the tip line.

Referring to Figs. 1 to 6 of the drawings, each of the lasting units is provided with a tack-pulling rake, indicated generall by the reference character 200. Each of these rakes comprises an enlarged head 202 formed on the lower end of an arm 204 which is pivotally mounted, by means of a pin 206, in a bifurcated slide member 208, Figs. 4 and 5. These slide members are mounted for vertical reciprocation in guideways formed in brackets 2I0 which are secured to the lionsin'gs I00 of the lasting units. The heads 202 are cut away at 212 to receive a plurality of fingers 2 which are backed up by a rubber cushion block 2I6, Fig. 6, and held in place by means of a clip M8 and bolts 220, Figs. 4, 5 and 6. Each of the slide members carries, at its upper'end, a trunnion'block 222 which is embraced by the bifurcated end 223 of an arm 224, pivotally mounted ona stud 226 that is secured to a portion of the bracket '2"), Figs. a and 5. Pivoted to each of thearms 224 is a latch member 228 formed with a recess 230 and an elongated slot 232. Also mounted on each of the studs 226 is a bell-crank lever 234 having a downwardly extending arm 2'36 and a rearwardly' extending arm 238, Fig. 2. Fixed in the arm 236 of each of these bell-crank levers is a pin 240 which projects into the slot 232 in one of the latch members 228.

The arm 238 of each of the bell-crank levers 234 carries a block 242, Fig. 2, to which there is secured one end of a Bowden wire 244, housed within a casing 246. At their opposite ends, these Bowden wires are connected to an arm 2:38 which is pivotally mounted on the outside of the head casting 24, Fig. 1. The arm 248, in turn, is connected by a link 250 to one arm of a bellcrank lever 252, mounted near the lower part of the column 25. The other arm of this bellcrank lever carries a cam roll 254 which is held in engagement with the periphery of a cam 256 by means of a coil spring 258. This cam is ad- .iustably secured, by means of a clamp screw 2% which passes through an arcuate slot 262 therein, to a disk 264 which is secured on the projecting end of a pattern cam shaft 265, corresponding to the pattern cam shaft 12 of the machine described in Lawson No. 2,201,866. On its peripheral surface, the cam 256 is provided with two dwell portions 268, 210 separated by a rise portion 212 and an abrupt drop-off 214.

As shown in Figs. 2, 5 and 5, the plungers H0 which operate the wire-feeding mechanisms are associated with the brackets 2I0 and each of these plungers is provided with a stud 280 which projects outwardly therefrom. When the cam roll 254 on the bell-crank lever 252, Figr'l, is in engagement with the dwell portion 268 of the cam 256, the latch members 220 are swung to positions corresponding to that illustrated in Fig. 5, through the action of the Bowden wires 244, bellcrank levers 234, pins 240 and elongated slots 232. However, as this cam roll travels down the drop-off portion 214 onto the dwell portion 210, these latch members will be swung into positions corresponding to that illustrated in Fig. 4 with the studs 280 engaging the latch members in the recesses Z30 therein, thus connecting the slides 208 to the plungers H0. Now, when these plungers are reciprocated to operate the wire feed mechanisms, in a manner explained more particularly in the patent to Lawson No. 1,854,204, the slides 206 and tack-pulling rakes 200 will be moved up and down therewith. As is explained in the Lawson Patent No. 2,201,866, the lasting units are operated twelve times as the lasting operation proceeds from the breastline to the tip line of a shoe supported and fed along by the jack 20 and, during the latter portion of each operating cycle the pattern cam shaft 268 is rotated one twelfth of a turn. The cam 250 is so disposed angularly with respect to the pattern cam shaft 266 that the cam roll 254 travels along the dwell portion 268 of the cam 250, and the slides 208 are disconnected from the plunger H0, during the first nine operating cycles of the machine. When the pattern cam shaft 256 is rotated one twelfth of a turn during the latter part of the ninth operating cycle, this cam roll travels down the drop-oil onto th dwell 210, thus connecting the slides 208 to the plungers [I for reciprocations thereby during the last three operating cycles of the machine. When disconnected from the plungers IIO, the slides 208, together with the tack-pulling rakes 200 carried thereby, are held in elevated positions, see Fig. 5,

by means of coil springs 282, stretched between pins 284 carried by the brackets 2I0 and the low er ends of these slides, Fig. 2.

In addition to the up-and-down movements which are imparted to the tack-pulling rakes 200, in the manner just explained, these rakes are moved in directions extending laterally of the shoe bottom to facilitate their tack-pulling actions. Fixed to each of the overlaying members I08 is a pin 300 that projects into a slot 302 formed in one end of a plunger 304 which is slidable in a guideway formed in a plate 306, secured to the housing I00, Fig. 3. Interposed between this pin and an abutment member 308, fixed to each of the plungers 304, is a compression spring 3I0. Adjacent to its lower end, each of the arms 204 is formed with an angularly disposed camming surface 3I2, and these arms are swung about their pivotal connections on the slides 208, to hold these camming surfaces against rounded ends 3M on the plungers 304, by means of coil springs 3l6, Figs. 2 and 3.

The tack-pulling devices which have just been described operate in the following manner. As already explained, the slides 208 are connected to the plungers I I0, which operate the wire-feeding mechanisms, as the pattern camshaft 266 is rotated during the latter part of the ninth operating cycle of the machine. These plungers are reciprocated'once during each operating cycle, moving upwardly on a return stroke just after the overlaying members I08 complete their movements toward the insole rib and as the fastening is being driven, and moving downwardly to eiiect feeding of the wire just after these overlaying members have been withdrawn, during the last half of the operating cycle. "Thus, as the shoe is fed along between the ninth and tenth operating cycle, the slides 208 will be moved downwardly by the .plungers IIO to bring the tack-pulling rakes 200 to positions corresponding to that illustrated in Fig. 3. Now, during the first half of the tenth operating cycle as the overlaying members are operated to wipe the lasting margin of the stock in over the insole to press it against the insole rib, the tack-pulling rakes will be swung inwardly over the bottom of the shoe by'the action of the plungers 304 so that the fingers 2 I4 of these rakes will engage any pulling over tacks t in that vicinity, see solid line position illus trated in Fig. 2 and the lower broken-line position of Fig. 3. Next, as the fastening is driven and as the plungers H0 move upwardly on their return strokes, these tack-pulling rakes will be elevated to positions corresponding to that illustrated by the upper broken-line position in Fig. 3, thus removing any tacks previously engaged thereby. During such upward movement of the tack-pulling rakes, the rounded ends EM of the plungers 304 will travel along the camming sur faces 3I2 on the arms 204 thereby imparting a further component of movement to these rakes and causing them to follow, more or less, any inward deflection of the tacks as they are withdrawn from the last. As the operating cycle is completed, the tack-pulling rakes are returned to positions corresponding to that shown in solid lines in Fig. 3 by the action of the springs 3H5. The foregoing actions of the tack pulling rakes are repeated during the eleventh and twelfth operating cycles of the machine and then, as the pattern cam shaft is rotated the twelfth time, fol lowing the last operating cycle, the cam roll 254 passes up rise 212 onto the dwell 268 of the cam. 250 thus disconnecting the slides 208 from the wire-feeding plungers I I 0.

During the operation of the tack-pulling rakes 200, the finger 2 M of each rake which strikes the stem of a tack will yield, relatively to the other fingers, as permitted by the cushion block 2I6, thereby causing the adjacent fingers to be inserted beneath the head Of the tack, see Fig. 6. Hence, when the rakes are elevated, any tacks so engaged by the fingers 2M will be positively withdrawn. The yielding connection between the overlaying members I08 and the plungers 3%, provided by the compression springs 3E0, prevent damage to the parts if, for any reason, the tack-pulling rakes are prevented from completing their inward movements together with the over laying members. It will be apparent from Figs. 1 and 2 that the tack-pulling rakes 200 are located adjacent to, but slightly ahead of, the gripper jaws I04, I00 of the lasting units. Inasmuch these tack-pulling rakes are first set into operation during the tenth operating cycle, while the lasting units are operating some distance to the rear of the tip line, and are operated also during the eleventh and twelfth operating cycles, they will eiiectively remove those pulling-over tacks which are located adjacent to, and on either side of, the tip line. Thus, the difficulties previously encountered as the result of the driving-in, or bending-over, of these tacks by the overlaying members are avoided.

Referring to Figs. 8 and 9 of the drawings, the gripper jaws I04, I06 of each of the two lasting units are closed, moved upwardly away from the bottom of the shoe to tension the upper materials, opened and then moved downwardly, during each operating cycle of the machine by means of 11 operating fulcrum (cf, bell-crank lever 252, Fig. of Lawson No. 2,201,866).

The improved mechanism for rendering the gripper jaws inoperative functions in thefollowing manner. When the bell-crank levers 234 are swung into positions corresponding to that illustrated in Fig. 4 of the drawings, as a result of the partial rotation of the pattern cam shaft 266 during the iatter portion of the ninth operating cycle and in the manner explained above, each of the arms 506 is swung upwardly, see arrow Fig. 7, thereby stretching the springs 5l8 and causing the pins 518 to travel to the upper ends of the slots 514 in the links 512. Now, after the gripper jaws have been operated to seize and apply tension to the upper materials, during the first half of the tenth operating cycle of the machine, the fastening-inserting drivers are operated and the cam rolls 538 caused to travel along the cam tracks 53A. and to strike the ends 532 of the detent levers 52 3, thereby releasing the links 5I2 for upward movement by the springs 518. As a result of this upward movement of these links the shafts 508 are rotated, by the arms 5m, in directions corresponding to that indicated by the arrows in Figs. 8 and 9 so that the pins 420 are displaced downwardly from the positions shown in these figures. This occurs before the operating cam starts to impart downward movement to the gripper-actuating members during the tenth operating cycle. v

Referring again to Fig. l, the drop-off 546 on the cam 543 is so disposed that the cam roll on the bell-crank lever remains on the dwell portion 542 until the latter half of the tenth operating cycle has been substantially completed. Hence, the fulcrum 2 6 of the gripper-operating mechanism is maintained in a position to cause the operating cam to impart complete downward movements to the actuating members 400 which is sufiicient to open the gripper jaws regardless of how much upward movement had been previously imparted to these jaws. Just as soon as these jaws are thus opened, the latch members M2 are moved into latching position by the links 4 I 8, this being permitted even though the opening of the gripper jaws occurs when these. jaws are in their lowermost positions, inasmuch as the pins 420 have been displaced downwardly, as already explained. Immediately thereafter, and just before the beginning of the eleventh operating cycle, the cam roll on the bell-crank lever 550 drops down onto the dwell 544 of the cam 54B, thereby repositioning the gripper-operating fulcrum to a location in which the gripperactuating members are moved upwardly away from the bottom of the shoe. As the actuating members are thus moved upwardly, the gripper jaws remain open due to the fact that the hook portions of the latch members are in engagement with the shoulders on the actuating members therein. The cam roll on the bell-crank lever 550 remains on the dwell portion 544 of the cam 548 during the eleventh operating cycle and also during the first half of the twelfth operating cycle. After the twelfth operating cycle has been substantially completed, the cam roll on the bellcrank lever 550 travels up the rise portion 548 and onto the dwell 542 of the cam 540. Thus, the gripper-operating fulcrum (240) is repositioned to cause a complete downward movement of the actuating members 400 during the first operating cycle after the machine is again started to last another shoe.

Having described the invention, what is claimed 12 as new and desired to secure by Letters Patent of the United States is:

l. A machine for operating on shoes having. in combination, a pair of devices for operating along the opposite sides of the bottom of a shoe. progressively, in a plurality of successive operating cycles, a member associated with each of said devices and operable to remove fastenings previously inserted into the shoe, in locations adjacent to the marginal edge of the shoe bottom, and mechanism for rendering said fasteningremoving members operative during predetermined cycles of operation of said devices.

2. A machine for lasting shoes having, in combination, a pair of devices for working the upper materials over the bottom of a shoe and for securing said materials in lasted position, in difierent locations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, and a member associated with each of said devices and operable to remove fastenings previously inserted into the shoe, in locations adjacent to the margina1 edge of the shoe bottom, during the operation of the machine.

3. A machine for lasting shoes having, in combination, a pair of devices for working the upper materials over the bottom of a shoe and for securing said materials in lasted position, in diiferent locations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, a member associated with each of said devices and operable to remove fastenings previously inserted into the shoe, in locations adjacent to the marginal edge of the shoe bottom, and mechanism for rendering said fastening-removing devices operative during predetermined cycles of operation of said devices.

4. A machine for lasting shoes having, in combination, a pair of devices each including a grip per for tensioning the upper materials of a shoe and a fastening-inserting mechanism for securing the lasting margin of the tensioned upper in lasted position, in different locations along the opposite sides of the bottom of the shoe, progressively in a plurality of successive operating cycles, and amember associated with each of said devices-for removing fastenings previously inserted into the shoe, in locations adjacent to the marginal edges of the shoe bottom, during the operation of the machine.

5. A machine for lasting shoes having, in combination, a pair of devices each including a gripper for tensioning the upper materials of a shoe and a fastening-inserting mechanism for securing the lasting margin of the tensioned upper in lasted positon, in different locations along the opposite sides of the bottom of the shoe, progressivcly, in a plurality of successive operating cycles, a member associated with each of said devices and operable to remove fastenings previously inserted into the shoe, in locations adjacent to the marginal edges of the shoe bottom, and mechanism for rendering said fasteningremoving members operative during predetermined cycles of operation of said devices.

6. A machine for lasting shoes having, in combination, a pair of devices each including a gripper for tensioning the upper materials of a shoe and a fastening-inserting mechanism for scouring the lasting margin of the tensioned upper in lasted position, in difierent locations along the opposite sides of thebottom of the shoe. progressively, in a plurality of successive operating cycles, a member associated with each of said viously inserted into the shoe, in locations adjacent to the marginal edges of the shoe bottom, and mechanism including a control cam for rendering said fastening-removing members operative during predetermined cycles of operation of said devices.

7. A machine for lasting shoes having,'in combination, a pair of devices each including a gripper for tensioning the upper materials of a shoe and an overlaying member for working the per for tensioning the upper materials of a shoe and an overlaying member for workingthe lasting margin of the tensioned stockinwardly over, and for pressing it against the shoe bottom, in

L difierent locations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, a memberassociated with each of said devices and operable to remove fastenings previously insertedinto the shoe, in locations adjacent to the marginal edges of the shoe bottom, and mechanism for rendering said fastening-removing members operative during predetermined cycles of operation of said devices.

9. A machine for lasting shoes having, in combination, a pair of devices each including a gripper for tensioning the upper materials of a shoe and an overlaying member for working the lasting margin of the tensioned stock inwardly over, and for pressing it against the shoe bottom, in difierent locations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, a member associated with each of said devices and operable devices and operable to remove fastenings 'preto remove fastenings previously inserted into the shoe, in locations adjacent to the marginal edges of the shoe bottom, and mechanism including a control cam for rendering said fastening-removing members operative during predetermined cycles of operation of said devices.

10. A machine for lasting shoes having, incombination, a pair of devices each comprising ,-a gripper for tensioning the upper materials of a shoe, and a fastening-inserting mechanism for securing the lasting margin of the tensioned upper materials in lasted position, in difierent locations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, a member associated with each of said devices for removing fastenings previously inserted into the shoe, in locations adjacent to the marginal edges of the shoe bottom,

' and means for connecting said members for operation by the fastening-inserting mechanisms of "said devices, during the operation of the machine.

11."A machine for lasting shoes having, in com bination, a pair of devices each comprising a gripper for tensioning the upper materials of a shoe, and a fastening-inserting mechanism for securing the lasting margin of the tensioned upper materials in lasted position, in 'difierent locationsalong the opposite'sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, a member associated with each of said devices and operable to remove fastenings previously inserted into the shoe, in locations adjacent to the marginal edges of the shoe bottom, and mechanism for connecting said members for operation by the fastening-inserting mechanisms of said devices, during predetermined operating cycles of the devices. I

12. A machine for lasting shoes having, in combination, a pair of devices each comprising a gripper for tensioning the upper materials of a shoe, and a fastening-inserting mechanism for securing the lasting margin of the tensioned upper ma terials in lasted position, in different locations along the opposite sides of the bottom of the shoe, progressively,.in a plurality of successive operating cycles, a member associated with each of said devices and operable to remove fastenings previously inserted in the shoe, in locations adjacent to the marginal edges of the shoe bottom, and mech-- anism including a control cam for connecting said members for operation by the fastening-inserting mechanisms of said devices, during predetermined operating cycles of the devices.

13. A machine for lasting shoes having, in combination, a pair of devices each including a gripper for tensioning the upper materials of a shoe, and a fastening-inserting mechanism, including an overlaying member and means for feeding wire, for inserting Wire fastenings to secure the lasted margin of the tensioned upper materials in lasted position, in different locations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, a tack-pulling member associated with each of said devices for removing tacks previously driven into the shoe, in locations adjacent to the marginal edges of the shoe bottom, and means for connecting said tack-pulling members for operation by the overlaying members and wire-feeding means of said fastener-inserting mechanisms,

during the operation of the machine.

14. A machine for lasting shoes having, in combination, a pair of devices each includinga gripper for tensioning the upper materials of a shoe, and a fastening-inserting mechanism, including an overlaying member and means for feeding wire, for inserting wire fastenings to secure the lasted margin of the tensioned upper materials in lasted position in different locations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, a tack-pulling member associated with each of said devices and operable to remove tacks previously driven into the shoe, in locations adjacent to the marginal edges of the shoe bottom, and mechanism for connecting said tack-pulling members for operation by the overlaying mem bers and Wire-feeding means of the fastenerinserting mechanisms, during predetermined operating cycles of said devices.

'15. A machine for lasting shoes having, in combination, a pair of devices each including a gripper for tensioning the upper materials of a shoe, and a fastening-inserting mechanism, including an overlaying member and means for feeding wire, for inserting wire fastenings to secure the lasted margin of the tensioned upper materials in lasted position, in difierent locations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, a tack-pulling member associated with each of said devices and operable to remove tacks jacent-to the marginal edges of the shoe bottom,

:v-rlatch meniberzanda stop'pin for-disengagingssaid 1 latch member, in responsefto arpredetermined extent ofxdcivnwzard; movement :ofetheigripper, and amechanisne forsdispiacing. said stopzpins aposiations in which rid iatchmembersareiengaged to :rendersth'e.grippersiinoperativee regarddessiof the extent rofvdow nward movement thereof.

opposite: sides ofi/ztheiibottom of; thel.;ShO,1I)I0 gressively insa-v plurality 'oirsuccessizvezoperating cycles; means: associated withzeach oi; said deyices: for' zrenderingithes grippensinonerative inhiding 'Et' IRtCh member-and asstop pin for disengaging latch imember, .inresponse .toua pre- '"determinedWextent of downwardi movement of the gripper predeterminedop erating-acycies oixsai'd devices,

i'or'displacing said sto'pi in's to position said:latch-members are-engaged to" grippersinoperative;regardless bfitneextent of downward 'niovemen't thereof.

' 18. machine fcrl astirigshdes haying -in conibination; a pair of-device's each-- including a} :gripper for tensi'oningthe: upper :materials' of ashoe and a iastening-insertin 'echanismfor securing the lasting: margin ro'i the tensioned -up 1 per in iasted position, indifferent location'sal-ong the oppositesides' otthe' -bottoni ofthe shoe, progressively, ina' pl-urality of' successiye operating 'cycles, each or said 3 grippers comprising a *pair of-jaws, averticall-y i'eciprocable actuating member operable to effect opening-andciosing o1 said-'jawsand'heightwise movementthereof; relatively to-thebottom of the shoe,'--p'owereoperated means for reciprocating the actuating: members,

mechanism associated with the power-operated means for'varying the extent ofdownward movement -imparted to said actuating-members; during predetermined operatingcycles of said devices; latch members associated with said grippers and arranged to conne'ctithe" actuating men'i bers to the gripper jaws'jther'eby toidiscontinue Iclosing. movements thereof; stop pins carried by said devices for disconnecting said l'atchQmem- .bers whenv maximum downward movements; are ygimparted ,to said actauting members iand n'ieohanism for. disp'laoingsaid stoppins to positions in -.-.which the latch members connect, theigripper jaws to .said actuatingumembers, regardless of the extent ofhdoyvnwardmovementthereof. J 19.,.Amachine for lasting shoes .hayingincomi binatiorn. a, pair of 4 devices eachiincluding, agripper for tensioninglthempper. materials ofaa-shoe and a."fasteningeinserting mechanism for,- securing the. lasting-margin 'ofiithestensionedi ,upper in r 1 7 Amachineforlasting:shoeshavingzin:com- :..binatiornia pair of devices eachfincludingagriplasted position, intzdifiere'ntzlocations'iaiongthe :mechanism, operativennuring lastedtpositioni inodiiicrentziocations aloneethe opposite-asides oixthetbottom oizthe: shoeqcprogressively, in: agplnrality ofvsuecessive operating cycles, ,each of :said gripperszzcpmpnising ,arrpair .5 oiiiaws,ayertically'r ciprocabie;actuatingrmemwz' ibeal' .oper-abie to;cefiectropeningr:andvclosing of said jaws and heightwi e movement:therecfizrelawttvely to the bottom totthezshee;vpowereoperateci a: means forrecipronating the'actuatin :members, mechanism associated ,with 1' thevpowereoperated Y means for'varying: the extent;oh-downwardmovementimparted 1193 said sactuatinai-members; =during :1 predetermined operatingzcycles ofisaid =deslices-damn? members? associated withusa-id grip pers and arrangedtto. connect/the; actuatingmemhers to the gripper? 'aws-,= hereby tozidiscontinue closingmovement jthfl'BOfixStOIk 'ied by said devices for. itdisconnecting 20::imparted to-asaid actuating members: enctanechanism, operative during predetermined operating cycles of said deyices; r for-rcdispiacing said stop pins to. positions in; which cthezclatchomembers connect lthE gripper: jaws :to eSa-idc actuating 'imembers ,-rregardlessiofi theisententiofadownward-move- ,mmentzthereof.

20. ::A machine for rlastingzshoeszhaying, inrcombination,-;a;pairrof-ideviceszeach.including agriprpen for tensioning.zthezupperimaterials LO az-shoe g and:.:a:ifastenineeinserting;mechanism for; securingttheilasting;margin of theitensionedmpper in lasted iposition, imdifierentnlocations salongzathe J opposite: sides or thevioottom of the :'shoe..=:%pro- .n-rpressively, inzapluraiity Ofi:S1lCGBSSiS/'B operating :oycles, :each of said,igrippersficomprising a.,pair 10f; jaws,a vertically reciproc'ablejactuatingmember operable to efiect opening and ciosing-ofsaid -=-;jaws .and tosimpartwthereto i'heightwise move- :mentsp relatively tO'mthE-IbQtiOl'fl Ofiiithfiif shoe, 40 powereoperateda means for?v reciprocatingithe actuating memb.ers;-;L-mechanismfincludingracontrol cam for; reducing the. extent .of'rdownwardjmovementimparted to saidactuating, membersndin'ing ing predetermined;operating; cycles ofisa-id dei vices,:1atchmembers associatedwith the-grippers sandarranged to connect the-actuating members said grippers and-"thereby discontinue closing ofirtheigripperi 'jawsrrstopz;pins:carried hyssaid V devices for operating: the: .latchazmembers toedisi connect:thegrippersrziromsaids actuating membersgawhen maximumwdownwardnmovementssare :imparted to the; actuating members ands-mechanism for displacing said: stompins to :positions inqwhichtheyi-aregineitective towdisconnect the grippers rfromethe actuating: 2 members;;;rega1d- --.-1ess oft-the extent of downward; movement-imparted totsaid actuatinganernbers saidicontrol a cam being operabie-toreducethe extent-of. downi, wardmovementgimpartedto said actuating :memhers on1yaiterisa ,.lasternentioned.--mechanism .whas displacedsaid stop pins.

21. Ammachineiorlasting. shoes-having, in ascombination a pair of ,deviceseachincmding a ,,gripp.er f orrtensioningethe uppermate'rials of a shoe and ,afastening-insertingimechanism. for i. securing the. lasting margin of the tensioned upperuin lasted position, indifferent locations along v the opposite jsides of ,thesbottom ofetheqshoe, progressively, in ,a. plurality of. successive operat- 7 mg cycles, each ofsaid grippers; comprising a 7 pair ofjaws, a. vertically reciprocable actuating member. operable to efiect, openingaandclo sing of said jaws; .and to. impart I theretos heighttvise movements -relatively toe-the bottom of: thei'shoe, 15 DQwer-operateimeans: fon,1 ;eciproca. tingether actuating members, mechanism including a control cam for reducing the extent of downward movement imparted to said actuating members, during predetermined operating cycles of said devices, latch members associated with the grippers and arranged to connect the actuating members to said grippers and thereby discontinue closing of the gripper jaws, stop pins carried by said devices for operating the latch members to disconnect the grippers from said actuating members, when maximum downward movements are imparted to the actuating members, and mechanism, operative during predetermined operating cycles of said devices, for displacing said stop pins to positions in which they are ineffective to disconnect the grippers from the actuating members, regardless of the extent of down- Ward movement imparted to said actuating members, said control cam being operable to reduce the extent of downward movement imparted to said actuating members only after said lastmentioned mechanism has displaced said stop pins.

22. A machine for lasting shoes having, in combination, a pair of devices each including a gripper for tensioning the upper materials-of a shoe and a fastening-inserting mechanism for securing the lasting margin of the tensioned upper materials in lasted position, in different cations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, a member associated with each of said units for removing fastenings previously inserted into the shoe, in locations adjacent to the marginal edges of the shoe bottom, and mechanism for discontinuing the tensioning actions of said grippers and for rendering said fastening-removing members operative, during the operation of the machine.

23. A machine for lasting shoes having, in combination, a pair of devices each including a gripper for tensioning the upper materials of a shoe and a fastening-inserting mechanism for securing the lasting margin of the tensioned upper materials in lasted position, in different locations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, a member associated with each of said devices and operable to remove fastenings previously inserted into the shoe, in locations adjacent to the marginal edges of the shoe bottom, and mechanism for discontinuing the tensioning actions of said grippers and for rendering said fastening-removing members operative, during predetermined operating cycles of said devices.

24. A machine for lasting shoes having, in combination, a pair of devices each including a gripper for tensioning the upper materials of a shoe and a fastening-inserting mechanism for securing the lasting margin of the tensioned upper materials in lasted position, in difierent 1ocations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, a member associated with each of said devices and operable to remove fastenings previously inserted into the shoe, in locations adjacent to the marginal edges of the shoe bottom, and mechanism including a control cam, for discontinuing the tensioning actions of said grippers and for rendering said 18 fastening-removing members operative, during predetermined operating cycles of said devices.

25. A machine for lasting shoes having, in combination, a pair of devices each including a gripper for tensioning the upper materials of a shoe and a fastening-inserting mechanism :ior securing the lasting margin of the tensioned stock in lasted position, in different locations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, a member associated with each of said devices and operable to remove fastenings previously inserted into the shoe, in locations adjacent to the marginal edges of the shoe bottom, means associated with each of said devices for rendering the gripper inoperative, including a latch member and a stop pin for disengaging said latch member in response to a predetermined maximum extent of downward movement of the gripper, mechanism for rendering said fasteningremoving members operative, during predetermined operating cycles of said devices, and means controlled by the last-mentioned mechanism for displacing said stop pins to positions in which said latch members are engaged to render the grippers inoperative, regardless of the extent of downward movement thereof.

26. A machine for lasting shoes having, in combination, a pair of devices each including a gripper for tensioning the upper materials of a shoe and a fastening-inserting mechanism for securing the lasting margin of the tensioned stock in lasted position, in different 10- cations along the opposite sides of the bottom of the shoe, progressively, in a plurality of successive operating cycles, each of said grippers comprising a pair of jaws, a vertically reciprocable actuating member operable to effect opening and closing of said jaws and to impart heightwise movement thereto, relatively to the bottom of the shoe, power-operated means for reciprocating said actuating members, mechanism associated with the power-operated means for varying the extent of downward movement imparted to said actuating members, during predetermined operating cycles of said devices, latch members associated with said grippers and arranged to connect the actuating members to the gripper jaws, thereby discontinuing closing movements thereof, stop pins carried by said devices for disconnecting said latch members when maximum movements are imparted to said actuating members, a member associated with each of said devices and operable to remove fastenings previously inserted into the shoe, mechanism for rendering said fastening-removing members operative during predetermined operating cycles of said devices, and means controlled by said last-mentioned mechanism for displacing said stop pins to positions in which the latch members connect the gripper jaws to said actuating members, regardless of the extent of downward movements thereof.

HERMAN A. IMl-IOF.

Number Name Date Farmer Jan. 20, 1931

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