US1432105A - Upper-shaping machine - Google Patents

Description

J. GOULDBOURN AND F. HICKS. UPPER SHAPING MACHINE.

APPLICATION FILED AUG. 19, I920.

1,%g,1 5, Patentefi 0ct.17,1l922.

2 SHEETSSHEET I.

J. GOULDBOURN AND F. RIEKS.

UPPER SHAPING MACHINE.

APPLICATION FILED Auc..|9. 1920.

11,432,105. Patented Oct 17,1922.

2 SHEETSSHEET 2.

Patented @ct. 1.7, 1922.

JOSEPH GOULDBOURN AND FRED RICKS,

scant Pr a fftiNT @FFHCB,

OF LEICESTER, ENGLAND, ASSIGNORS TO UNITED SHOE MACHINERY CORPORATION, OF FATERSON, NEW JERSEY, A COR- PORATION OF NEW JERSEY.

UPPEIt-SLEXAPING MACHINE.

Application filed August 19, 1920.

To all whom it vita y concern:

Be it known that we, Josnrrr GouLnBoUnN and FRED Ricks. subjects of the King of England, residing at Leicester, Leicestershire, England, have invented certain Improvements in Upper-Shaping Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings, indicating like parts in the several figures.

This invention relates to machines for use in the manufacture of boots and shoes for shaping or forming the upper materials. The invention is herein illustrated in its application to a type of machine shown and described in prior United States Letters Patent Nos. 1,156,897 and 1,190,753 granted respectively on October 19, 1915, and on July 1.1, 1916 upon applications of Messrs. Gouldbourn, Bates and Jerram, and Patent No. 1,247,011, granted on November 20, 1917 upon application of Fred Ricks, machines of this type being particularly adapted for molding the heel end portion of upper materials. lVhile it is one of the objects of the invention to provide improvements in machines of this type, it is to be understood that in many of its aspects the invention is not limited to the illustrative type of machine nor restricted in utility to the shaping of the heel end portion of the upper.

An important feature of the invention resides in a. novel organization affording provision for adjustment of an upper relatively to upper clamping or shaping means at an intermediate stage in the operation of the machine. As applied to a type of construction wherein the upper is shaped between inner and outer formers that are moved relatively to operative position by power driven mechanism, the invention in its illustrative embodiment provides means for bringing the machine to a stop with the upper lightly held between the formers in such manner as to permit it to be adjusted prior to the ap plication of the fun upper shaping pressure which is effected upon a subsequent starting of the machine. This organization contributes to uniformity and precision in the operation of the. machine upon the work, and is of particular advantage where there is con- Serial No. 404,634

siderable variation in the character of the work or where the machine is in charge of a comparatively inexperienced operator.

Another feature of the invention consists in, novel means of control for wiping means whereby the margin of an upper is shaped to produce a flange adapted to be secured to a sole or insole. In the illustrative type of machine the wipers are operated by mechanism which moves in one direction to impart to them their overwiping movement and then to force them. toward the inner former for compressing the margin of the upper and which moves in the opposite direction to withdraw the wipers from the overwiping plane and to return them to their starting position. The invention provides novel means insuring that the pressure of the wiping means upon the margin of the upper shallbe relaxed prior to the reverse backward movement of the wiping means, the illustrative construction comprising mechanism for locking the wipers in their foremost position and for releasing them only when they have been lifted to withdraw them from the molded flange. Still another novel feature of this part of the invention consists in means for insuring movement of the Wiping means to the proper Wiping plane to render it effective in its advancing movement in wiping engagement with the margin of the upper.

A further feature of the invention consists in novel means for gripping the forepart of an upper and stretching the upper forwardly. Included in this part of the invention are novel gripper closing and operating mechanism, novel gripper locking and releasing mechanism, and novel means affording provision for adjustment of the gripper.

Still other features of the invention are to be recognized in novel mechanism for operating upper forming means under yielding pressure, novel means of support for a former or mold, and a novel arrangement affording provision for ready access to the wiper mechanism for the purpose of inspection or repairs.

The above and other features of the invention, including certain details of construction and combinations of parts, will now be described with reference to the accompanying drawings and pointed out in the claims.

In the drawings:

Fig. 1 is a view in side elevation of a machine in which the different features of the invention are embodied;

, Fig. 2 is a view in side elevation of mech anism provided for locking and releasing the gripper;

Fig. 3 is a plan view of a portion of the mechanism shown in Fig. 2;

Fig. 4 is a side elevation, with parts in section, of the gripper mechanism;

Fig. 5 is a vertical section through the gripper mechanism of Fig. 4, and

Figs. 6 and 7 are views illustrating suc cessive stages in the operation of the upper molding means.

Since the features common to the machine herein shown and to prior machines of the illustrative type are fully shown and described in the prior patents mentioned, such features will be referred to herein only as is necessary for an understanding of the present invention.

In order to permit a protracted application of upper forming pressure consistently with economy of time on the part of the operator, the machine is provided with a plurality ofsets of instrumentalities for operating respectively on different uppers. It is contemplated that the illustrative machine shall have four such sets of instrumentalities arranged in a row across the machine. As in prior machines, each. set of instrumentalities comprises a stationary inner former or mold 2, an outer former 4 comprising a pair of molding members which are advanced and closed about the inner former, and a wiper carrier 6 which is movable forwardly and backwardly along a guideway on the frame of the machine and carries wipers 8 which are operated through toggles 10 to compress the margin of the upper over the inner form-er 2 afterthe margin has been wiped inwardly. For operating the different sets of instrumentalities the. machine is provided with four identical cams with connections to the outer formers 4 and to the wiper mechanisms, these cams not being shown herein in detail since their construc tion for the purposes in view is merely a matter of design. The cams are mounted on a horizontal cam shaft 12 supported in bearings in the base of the machine and extending parallel to the front of the machine. Also fast on this shaft is a worm wheel 14 which is rotated by a worm 16 fast on a second shaft 18 extending at right angles to the shaft 12. The shaft 18is driven by a pulley 20through a clutch indicated generally at; 22. The clutch is actuated to start thelmach-ine by means of a treadle 24 extending substantially across the front of the macesses 34 formed in a flange 36 projecting from the worm wheel 14.

It is contemplated that the different sets of formers and wipers shall operate consecutively from right to left of the machine, and when the extreme right hand outer former is back to permit an upper to be placed over the inner former the remaining three sets of outer formers and wipers will be forward in operative position. For the purposes in view the cams for operating the outer formers are so shaped and arranged relatively to the clutch controlling means that operative movement is imparted to each outer former in two successive steps between which the machine comes to rest with the upper only lightly held between the inner and outer formers, as shown in Fig. 6, to permit it to be adjusted relatively to the formers if the operator so desires, andsimilarly two successive movements are imparted to the outer formers in returning them to starting position. If now the treadle 24 is depressed to actuate the clutch, the first or right hand outer former is moved'part way forward to grip the upper lightly round the inner former and the second set of outer formers and wipers is moved part way back, partially releasing the molded upper. It is contemplated that the operator will release the treadle directly after the machine has started to cause the treadle spring (not shown) to operate the lever 28 to open the clutch as soon as the next recess 34 in the flange 36 arrives in position to receive the roll 32. iVhile the machine is thus at rest the operator observes the condition of the work in the first set of formers and if necessary adjusts it relatively to the formers. When the treadle 24 is again depressed, the first outer former is moved fully forward into molding position and the corresponding wipers are operated, and the second outer former is at the same time moved fully back so that the molded upper may be removed and an unmolded upper placed in position. WVhen the treadle is again depressed the second outer former is again moved part way forward and the third part way back, whereupon the machine again comes to a stop. Upon subsequent depressions of the treadle the second andthird sets of formers continue to operate in unison, the third and ing half a revolution of the shaft, being unaffected by four consecutive treadlings.

T provide a firm support for each inner former or mold 2 against the downward pressure of the wipers, there is associated with each of said formers a strut 88 pivoted at 10 on the frame of the machine and arranged to be moved forwardly into supporting position under a depending lug 12 on the inner former by means of a sprmg plunger 14 which bears against the rear face of the strut. The strut 38 has formed upon it a lug 16 which, when the strut is in operative position, engages a stop screw 18 on the frame. When the outer former and the wipers are in their inoperative position, the strut 38 is swung backwardly to its inoperative position, shown in Fig. 1, by means of a pin 50 fixed in the end of an arm of a cam operated lever 5stthrough which operative movement is imparted to the outer former. lVhen the lever 51 is operated to move the outer former backwardly away from the inner former, the pin 50 engages the lug 1-6 and swings the strut 88 about its pivot into inoperative position where it is held to permit free access to the inner former in positioning the worlr. As the outer former receives its forward movement, the pin 50 releases the strut and permits it to be swung forwardly into operative position by its spring plunger 1 1.

Each gripper for drawing the upper forwardly about the associated inner former 2 comprises (l igs. 4 and 5) a fixed jaw 56 formed on the lower end of a member 58 which is mounted for swinging movement on a pivot 60 fixed in a slide 62 adjustably movable upwardly and downwardly along a bracket 6 1 on the frame of the machine. The member 58 is adjusted about its pivot for different lengths of upper by means of a thumb screw 66 which is threaded through a lug on the member 58 and bears at its inner end against a cap 68 on the frame. The end of the screw is held in engagement with the ap by a spring plunger 70 which is mounted in the slide 62 and bears against a projection on the member 58. Pivoted at 7 2 on the member 58 is aco-operating gripper jaw 74 which has an arm 76 extending upwardly within a recess in the member 58 and provided with a slot to receive the end of one arm 78 of a bell. crank lever 80 which is mounted on the pivot 60. The other arm 82 of the bell crank lever 80 has a rounded end which enter-s a slot formed in a rack slide 8-1 movable in the slide 62 in parallel relation to the direction of adjustingmovement f the latter. It will be evident that downward movement of the rack slide 84 operates through the bell crank lever 80 first to impart closing movement to the gripper jaw 7 1 and then, against the resistance encountered by the jaws, to swing them with the member 58 about the pivot 60 to pull and stretch the upper forwardly. Subsequently the gripper is swung reversely to starting position by the spring plunger 70 until the screw 66 engages the cap 68, opening move ment being imparted to the pivoted jaw 74 by means of a spring plunger 86 which is mounted in the arm 78 and engages the mem ber 58.

The rack slide 8% is moved downwardly to operate the gripper by means of a pinion which is fast on a horizontal shaft 90 supported by the bracket Also fast on the shaft 90 (Fig. s is a worm wheel 92 mesh ing with a worm rotatably mounted in a lever 96 which is loosely pivoted on the shaft 90. By movement of the lever 96, through IIlGtllzlIllSHl to be hereinafter described, the pinion 88 is thus turned through the connections including the worm and the worm wheel 92 to operate the gripper.

The slide 62 is normally locked to the bracket against downward movement by means of a roll 98 which is mounted in a recess in the cap 68, this roll being normally held in engagement with a wedge face 100 of said recess and a face 102 on the slide 62 by means of a spring plu; ger 10% in the cap 68. it will thus be understood that by wedging action of the roll between the relatively inclined faces 10*?) and 102 the slide 62 is normally restrained from downward movement. The roll may be moved out of its locking position by pin 106 mounted in the cap 68 on the opposite side of the roll from the spring plunger 10 1, the pin being operated by an eccentric 108 having a handle 110 by which it may be turned. VJ hen the slide 62 thus unlocked, the slide and the grip per be moved along the bracket 64 to adjus the gripper heightwise of the upper. Upward movement of the slide is effected through the rack 84; and the pinion 88 by rotation of the worm 9 1 through turning movement of a hand wheel 111 on the worm shaft, the lever 96 being held stationary by its operating connections hereinafter described. Similarly, by reverse movement of the worm, the slide 62 may be permitted to move downwardly along the bracket.

The lever 96 is connected by a link 112 to one arm 11 1 (Fig. 2) of a three armed lever 116 pivoted on a shaft 118 on the frame. A second arm 120 of this lever is connected by a link 122 to a treadle 12 1 pivoted on the same shaft as the clutch treadle. Depression of the treadle 12 1 first closes the gripper and then swings it about the pivot 60 to stretch the upper, as hereinbefore described. The third arm 126 of the lever 116 has an edge concentric with the pivot of the lever, on which are formed ratchet teeth 128 engaged by a pawl 130 which is pivoted on the frame and is held by a spring plunger 132 normally in engagement With the teeth.

&

The pawl and ratchet mechanism thus locks the gripper in any position to which it is moved in pulling an upper.

The machine is provided with means whereby the pawl 130 may be disengaged from the ratchet teeth at any time to release the gripper, and also with means whereby the pawl is automatically disengaged as the outer former is moved back to inoperative position. For disengaging the pawl manually the arm 126 of the lever 116 has sliding-1y mounted upon it a member 134: having a face 136 concentric with the pivot 01 the lever and arranged to engage the pawl 130 and push it away from the ratchet teeth. Pivoted on the member 13% is a block 138 positioned in a groove 140 formed in one arm of a lever 141-2 pivoted at 144: on the arm 126. The other arm of the lever 1512 is connected by a link 146 to a small treadle 148 pivoted on the gripper operating treadle .124. The treadle 148 is normally raised by a spring plunger which is mounted therein and bears against a projection on the treadle 124:. Depression of the treadle 1 18 serves to turn the lever 1 12 about its pivot 1 1 1 and through the groove and block connection 1 10 and 138 to slide the member 13 1 along the arm 126 until its concentric face 186 engages the pawl 130 and pushes it away from the ratchet teeth 128. The pawl is automatically disengaged from the teeth in the return of the outer former to starting position by a detent 150 pivoted on a link 152 which connects the outer former cam lever 54: with the former operating toggle links 154 and 156. The detent has a projection normally held against a stop pin 160 by means of a spring plunger 162 mounted in a lug on the link, the spring plunger permitting the detent to ride over the projection 158 in the operative upward movement of the link.

To provide for yield in the advancing and closing movement of each outer former 1 a spring 164 is housed in the frame of the machine and bears at one end against the end of the housing and at the other end against a collar 166 having a bearing in the bored end of the housing and adjustably mounted on a rod 168 which passes through the spring and the housing. A nut and a lock nut 170 are screwed on the rod 168 for adjusting the collar 166 and thereby varying the pressure of the spring. On the opposite end of the rod is pivoted at one end a lever 172 which at its opposite end is connected to the outer former carriage 17st, and pivoted on this lever between its ends is one end of the toggle link 1554 through which the outer former is operated. Straightening of the toggle15t, 156 serves first to swing the lever 172 about its pivot on the rod 168 and thus to advance the outer former to operative position, and after the former hasiirmly engaged the upper further movement 01 the toggle is taken up by the turning ofthelever 172 about its connection to the carriage 17 1 against the pressure of the spring 16d. Insurance is thus ailorded that every upper shall be operated upon with firm molding pressure, and the arrangement of the operating mechanism, moreover, is such as to afford ready, access to the operating parts.

Each of the wiper carriers 6 is advanced to operative position and its wipers are subsequently torced downward to compress the flange of the upper through a single operating means comprising a three armed lever 11" on the wiper carrier, the lower arm 17 8 of which is connected by a link 180 to a lever 182 connected in turn by a link 18 1 to a swinging frame 186 in operative enga nent with the wiper cam, in prior machines, the lever 176 is so controlled that the wipers, after their advancing and closing movement, are forced downwardly to compress the margin of the upper by the operati on oi? the toggles 10 through a link 188 which connects the toggles to the lever arm 178. in the present machine insurance is ail'oi d that the wipers shall be partially depressed to bring them to the proper overwipingg plane before they engage the margin of the upper. For this purpose. a rearwardly extended arm 190 of the lever 176 carries a roll 192 which, as the wipers begin to move forwardly, engages a face 19 1 of a switch cam 196 pivoted at 198 in a recess in the frame oi the machine. The lever 176 is thus operated partially to straighten the toggles 10 and depress the wipers to opera tive position, and the roll 192 then travels underneath the switch cam and along a guiding ledge 200 on the frame to prevent further depression of the wipers during their overwiping movement. When the roll 192 passes beyond the end of the ledge 200 the toggles are further straightened by the turning of the lever 176 to cause the'wipers to compress the flange ot the upper. At the end of the forward movement of the Wipers a block 202 on the wiper carrier 6 rides over a locking pawl 204; which is pivoted on the frame of the machine and is held upward against a stop by a spring plunger 206. This locking; means insures that upon reverse movement of the wiper operating mechanism the wipers shall be held against rearward movement until they have been fully elevated above the margin of the upper by the flexing of the toggles. For unlocking the wiper carrier at this point the lever 176 has a forwardly extending arm 208 which engages and depresses the pawl 204 when the wipers have been fully raised and the roll 192 has been elevated into alinement with the upper face of the switch cam 196.

bination with inner and. outer molds relatively movable to mold the end portion of an upper between them, and power operated wipers for wiping the margin of the upper inwardly over the inner mold, of power operated mechanism for effecting rel ative operative movement of said molds, and controlling mechanism automatically operative to stop said relative movement of the molds with the molds engaging the upper with comparatively light pressure and man ually operative subsequently to cause the power mechanism to complete said relative movement of the molds to subject the upper to the full molding pressure.

11. In an upper shapingmachine, the comb-ination with. an inner mold, an outer mold for embracing and clamping an end portion of an upper round the periphery of the inner mold, and power operated wipers for wiping the margin of the upper inwardly v .rthe inner mold, of power driven means for imparting upper clamping movement to the outermold, andcontrolling mechanism for bringing the machine to a stop with the upper lightly held between the inner and outer molds to permit adjustment of the upper relatively to the molds prior to the applicationot the full molding pressure.

12. In a machine of'the class described, the combination with means tor en'ibracin g and clamping the heelend portion of. an up-- per, of power driven means for operating said upper clamping means, and controlling mechanism automatically operative to bring the machine to a stop with the upper lightly held by said clamping means to. permit its adjustment relatively to said means, said controlling mechanism being; manually operative subsequently to cause the power means to complete the operativemovement of the upper clamping means.

13. In a machine of the class described, the combination with wiping means for forming a flange on the margin of an upper, of a single operating means through which said wiping means is moved reversely after the flange forming operation both in a direction transverse to the plane of said flange and in a direction substantially parallel to said plane, and controlling mechanism automatically operative to insure a movement of the wiping means in a direction transverse to said plane to relax the pressure on the flange prior to movei'nent of the wiping means par allel to said plane.

14;. In a machine of the class described, the combination with wiping means for forming a flange on the margin of an up per, of operating means for moving said wiping means reversely from over said flange after the flange forming operation, mechanism automatically operative in response to resistanceto such reverse movement of the wiping means for moving said means in a direction transverse to the plane of said flange to relax the pressure on the flange, and retainingmeans for holding said wiping; means against said reverse movement until after at has been moved in a direction transverse. to said plane to relax the pressure on the flange.

In a machine of the class described, the cmnbination with wiping means for 'l'i'i i-ming a flange on the margin of an upper,

means rcversely from over said flange after the flange forming; operatioin, mechanism autonnitically operative in response to re- ILHCQ to such reverse movement of the wiping means for moving said means in a direction transverse to the plane of said flange to relax the pressure on the flange, a re aiming device For holding the wiping means against said reverse niovei'nent, and mechanism automatically operative to re lease 7 been moved in a direction transverse to said plane torelaxthe pressure on the flange.

16. In a machine of the class described, the combination with wiping means for forming a flange on the margin of an upper, Oil operating; means "for moving said wiping means reversely lengthwise or the upper utterthc flange 'i oriuing; operation, mecha nism connected to said operating means to be operated in response to resistance to such reverse movement oi the wiping means for moving: said Wiping means in a direction transverse to the plane of said flange to relax the pressure on the flange. and means for resisting such re erse movement of the wipii'igg means and torrelcasing said means only after the pressure on the flange has been relaxed.

17. In a machine ot'the class described, the combination with wiping; means for form ng a flange on the margin of an upper, otoperating means for moving said wiping means reversely lengthwise of the upper after the flange forming operation, mechanism connected to said operating means to be operated in response to resistance to such reverse movement of the wiping means for moving said wiping means in a direction transverse to the plane of said flange to relax the pressure on the flange, a. device automatically operative to hold the wiping means against reverse move ment, and mechanism connected operating means for causing said device to release the wiping means after the pressure on the flange has been relaxed.

to said oi operating means for moving: said wiplng d w n-ping means only after it has i 18. lln a machine of the class described, the combination with wiping means for forming a flange on the margin of an. upper, and operating means comprising a member movable in one direction to advance the wiping means and then to depress the wiping means to compress the flange ot' the upper and in the reverse direction to lift the wiping means and to retract it from over said flange. of mechanism automatically operative to insure lifting movement of the wiping means prior to its retracting movement.

19. In a machine oi? the class described, the combination with end embracing wipers for forming a flange on the margin of an uppei: of operating means for moving said wipers reverslv lengthwise of the upper after the flange forming operation, mechanism automatically operative in response to resistance to such reverse movement of the wipers to move them in a direction transverse to the plane of said flange to relax the pressure on the flange, and retaining mechanism automatically operativeto pre vent such reverse moven'ient ot the wipers until after they have been moved to relax the pressure on the flange.

20. In a machine of the class described, the combination with end embracing wipers for forming a flange on the margin ot an upper, ot' a wiper carrier movable to ad vauce and to retract said wipers, operating means for advancing and retracting said carrier, means on said carrier connected to said operating means to be operated in response to resistance to retractimg movement of the carrier for moving said wipers in a direction transverse to the plane or said flange to relax the pressure on the flange, a device automatically operative to lock said carrier in its advanced position, and mechanism constructed and arranged to unlock said carrier only after the wipers have been moved. to relax the pressure on the flange.

21. In a machine oi the class described, the combination with end embracing wipers, a wiper carrier movable to advance said wipers for forming a flange on the n'iargin or" an upper and relatively to which the wipers are movable to compress said flange, and operating mechanism comprising a member movable in one direction to adance said carrier and then to impartcompressing movement to the wipers and in. the reverse direction to move the wipers relatively to the 'arrier to relax the pres sure on the flange and to withdraw the carrier, ot mechanism automatically operative to hold said carrier in its advanced position and to release it only after the wipe have been moved through said mem her to relax the pressure on the flange.

22. In a machine of the class described, the combination with end embracing wipers,

a wiper carrier movable to advance said wipers for forming a flange on the margin of an upper and relatively to which the wipers are movable to compress said flange, and operating mechanism comprising a member movable in one direction to advance said carrier and then to impart compressing movement to the wipers and in the reverse direction to move the wipers relatively to the carrier to relax the pressure on the flange and to withdraw the carrier, of a retaining device tor holding the carrier in its advanced position, and a member operative in time relation to said operating member to cause said retaining device to release the carrier after the wipers have been moved to relax their pressure on the flange.

23. In a machine of the class described, the combination with and embracing wipers, a wiper carrier movable to advance said. wipers tor forming a flange on the margin of an upper and to retract the wipers, toggle means on said carrier for moving the wipers to cmnprcss said flange, and. a lever on the carrier opcrativel z connected to said toggle means and through which. also advancing'and retracting movements are imparted to the carrier, of mechanism automatically ope 'ative to hold. said carrier against retracting movement until after said toggle means has been operated. through the lever to relax the pressure oi the wipers on s a i d ii an go.

1344-. In a machine ot the class descril'ied, the combination with end embracing wipers, a wiper carrier movable to advance said wipers tor i cuining a flange on the margin oi an upper and to retract the wipers, toggle means on said carrier tor moving the wipers to compress said flange, and lever on the carrier operativelv connected to said. toggle means and through which. also advancing and tracting movements are imparted to the carrier, of a latch automatically operative to loci: said carrier in advanced position, and a member connected to said lever tor operating said latch to release the carrier after said toggle means has been operated through the lever to relax the pressure of the wipers on said flange. v

25. In a machine of the class described, the combination with wiping means for forming a flange on the margin of an upper, and a single operating means through which said wiping means is advanced an 'l retracted and through which it is also move. in different directions alternately to compress said flange and then to release the pressure on the flange, of mechanism automatically operative to insure a. movement ot' the wiping means in the direction of compression to bring it to the proper wiping plane before it becomes etl'ective in wiping engagement with the margin of the upper.

In a machine of the class described,

the combination with wiping means for forming a flange on the margin oi an upper, of a single operating means through which said wiping means is advanced and retracted and through which it also moved in different directions alternately to compress said flange and then to release the pressure on the flange, of a cam device automatically operative in the initial portion oi the advancing),- movement of the wiping means to impart to said means a movement in the direction of compression to bring it to the proper wiping plane.

27. In a machine oil} the class described, the combination with end embracing wipers, and operating, means comprising a member movable in one direction to impart success ively advancing and compressing movements to said wipers and in the opposite di rection to impart to the wipers withdrawing movements in the reverse order, of a device automatically operative in the advancmg movement ot said wipers to move them in the direction of compression a su'llicient distance to bring them to the proper wiping plane before they become etlective on margin of the upper.

28. In a machine of the class described, the combination with end embracing wipers, and operating; mechanism comprising a member through which said wipers are advanced and are subsequently moved in a direction to compress the margin of the upper, ot' a con trolling member movable with said operatin; member, a guide co-operating with said controlling member to prevent cmnpressing movement ot the wipers until their advancing movement has been substantial ly completed,v and a device arranged to act on said controlling member to torce it toward said guide in the initial portion of the advancing movement or" the wipers to bring the wipe s to the proper wiping plane.

29. In a machine of the class described, the combination with end. embracing wipers, and a wiper carrier movable to advance and retract said wipers and relatively to which the wipers are movable in a diilerent direction to compress the margin of the upper, of a lever arm pivoted on said wiper carrier and connected to the wipers for imparting to them their compressing movement, means arranged to operate through said lever arm also to advance the wiper carrier, a controlling member movable with said lever arm, a guide co-operating with said controlling: member to prevent compressing movement of the wipers until after their advancing movement has been substantially completed, and a cam member arranged to act on said controlling; member in the advancing movement of the wipers to force said controlling" member toward the guide to bring the wipers to the proper wiping plane.

SO. in a machine of the class described,

the

the combination with end embracing wipers. and a wiper carrier movable to advance and retract said wipers and relatively to which the wipers are movable alternately to compress tl e margin of the upper and to release the pressure on said margin, of an operating; member pivoted on said wiper carrier and connected to the wipers for imparting to them their pressure applyino and pressure releasing movements, means arranged to;

operate through said member to advance and retract the wiper carrier, a controlling; member mounted for swinging movement with said operating member, spaced guides tor limiting the swinging movements of said controlling member, in opposite directions, and a cam device automatically operative in the advancing movement of the wiper carrier to swing said controlling member toward one of said guides to bring the wipers to the proper wiping plane, said device being); yieldable in the retracting movement of the wipers to permit said controlling member to return to its initial position. i

31. In amachine ot the class described, the crni'ibination with inner and outer tt'ormfor molding. the end portion of an upper between them, means for wiping the margin of the upper over the inner former, and operating mechanism for advancing and then depressing said wiping; means and for subsequently raising said means and returning it to its starting position, of mechanism axitomatically operative in time relation to the advancing movement oi said wiping means to insure partial. depression o'l said means prior to the conclusion of its advancinn movement.

3%. in a machine of the class described, tl combination with upper positioning means, ot a gripper "for engaging the forepart oi the upper and pulling it forwardly, said. gripper comprising relatively movable jaws. a support for said aws movable lengthwise oi the upper, a pivotally mounted lever, and mechanism arranged to operate through said lever first to efl ect relative closing; movement of said jaws and then to move said gripper support .to cause the gripper to pull the upper.

33. In a machine of the class described, the combination with. upper positioning means, or a gripper for engaging the forepart of the upper and pulling it forwardly, said stripper comprising relatively movable jaws, a support for said jaws mounted for swinging movement lengthwise of the upper, a bell crank lever having an arm con ner'ted to one of the gripper jaws, and mechanism connected to the other arm of said bell crank ever for operating through the lever to etlect relative closing; movement of the jaws and then to swing); the gripper support in a direction to cause the gripper to pull the upper.

34. In a machine of the class described, the combination with upper positioning means, of a gripper for engaging the forepart of the upper and pulling it forwardly, said gripper comprising relatively movable jaws, a support for said jaws mounted for swinging movement lengthwise of the upper, a bell crank lever having an arm arranged to eliect relative closing movement of said jaws, and rack and pinion mechanism connected to the other arm of said bell crank lever for operating through said lever to close the gripper on the upper and then to move the gripper support to cause the gripper to pull the upper.

35. In a machine of the classdescribed, the combination with upper positioning means, of a gripper for engaging the forepart of the upper and pulling it lengthwise, means for operating said gripper, a device automatically operative to hold said gripper in any position to which it is moved by its operating means, power operated mech anism to cause said holding device subsequently to release the gripper, and additional mechanism permitting manual release of the gripper at the will of the operator.

36. In a machine of the class described, the combination with upper positioning means, of a gripper for engaging the fore part of the upper and'pulling it lengthwise, treadle means for operating said gripper to pull the upper, a device automatically operative to hold the gripper in any position to which it is moved by said treadle means. and auxiliary treadle means arranged to be operated by the same foot of the operator to cause said holding device to release the gripper.

37. In a machine of the class described, the combination. with forming means for the heel end portion of an upper and power driven mechanism for operating said forming means, of a gripper for engaging the forepart of the upper and pulling it lengthwise, a device automatically operative to lock said gripper in any position to which it is moved to pull the upper, and power means automatically operative subsequently to cause said locking device to release the gripper.

38. In a machine of the class described, the combination with upper positioning means, of a gripper for engaging the forepart 01"- the upper and pulling it lengthwise, and operating mechanism for imparting upper pulling movement to said gripper, said operating mechanism comprising parts relatively movable to adjust the gripper heightwise of the upper.

39. In a machine of the class described, the combination with upper positioning means, of a gripper for engaging the forepart of the upper and pulling it lengthwise, a support for said gripper mounted for adjusting movement heightwise of the upper, a device for locking said support in adjusted position, and operating means comprising rack and pinion mechanism for. imparting upper pulling movement to said gripper, said operating means including parts relatively movable to impart through said rack and pinion mechanism adjusting movement to said gripper support.

40. In a machine of the class described, the combination with inner and outer formers relatively movable to shape the end portion of an upper between them, of operating mechanism comprising a lever connected to one of said formers and extending in approximately perpendicular relation to the direction of movement of said former, a pivotal support for said lever, and controlling means for said support arranged to yield upon the application of a determinate degree of pressure to the upper.

41. In a machine of the class described. the combination with a former for the end portion of an upper, of a lever connected at one end to said former, a pivotal support for the other end of said lever, means connected to the lever. between. its ends for operating it, and controlling means from said lever support arranged to yield upon the application of a determinate degree of pressure to the the upper.

42. In a machine of the class described, the combination with a former for the end portion of an upper, of a lever connected to said former for operating it, a toggle for operating said lever, a pivotal support for the lever, and controlling means for said support arranged to yield upon the application of a determinate degree of forming pressure to the upper.

43. In a machine of the class described, the combination with a former for shaping the end portion of an upper, and means for compressing the marginal portion of the upper over said former, of a support for said former arranged to be maintained normally in inoperative position to afiord access to the former in positioning the work, and power means automatically operative to cause said support to move to its operative position.

44. In a machine of the class described, the combination with inner and outer formers for molding the end portion of an upper between them, and means for fianging the margin of the upper over said inner former, of a support for said inner former, and power operated means for maintaining said support normally in inoperative position and automatically operative after the starting of the machine to cause said support to move-to its operative position.

45. In a machine of the class described, the combination with inner and outer formers for molding an end portion of an upper between them, and means for flanging the margin of the upperover said inner former, of a strut for supporting said inner former against the upper Hanging pressure, said strut being movable into and ontof operative position, spring means for moving strut to operative position, and a power controlled member for holding said strut normally in inoperative position and for releasing it after the starting ofthe machine'to permit it to move to its operative position.

L6; In a machine of the class described, the combination with a frame having a bearirig adapted to support a fulcrum bar, of a wiper carrier operatively movable on said frame and provided with a bearing movable into substantial alinement with said supporting bearing to permit said wiper car rier to be turned about the fulcrum bar to facilitate inspection and repairs.

47. In a machine of the class described, the combination with a frame, of a Wiper carrier on said frame, said frame and carrier having bearing portions relatively movable into substantial alinement and adapted to receive a fulcrum v bar about which the wiper carrier may be turned to facilitate inspection andv repairs.

48. In an upper shaping machine, the

combination with means for clamping the heel end portion of an upperabout a form, of power operated means for effecting relative movement of said clamping] means and the form in successive steps to position them in co-operative clamping relation with a pause in the operation of the machine between said steps prior to the application of the full clamping pressure to permit the upper to be adjusted relatively to the form.

4E9. In an upper shaping machine, the combination with means for clamping the heel end portion of an upper about a form, of power operated means for effecting relative movement of said clamping means and the form to clamp the upper and controlling mechanism automatically operative to bring the machine to a stop; after power eflected relative movement of said clamping means and the form substantially into co-operative relation and while the upper may be readily slipped about the form to permit adjustment ofthe upper relatively to the form prior to the application of the full clamping pressure.

lntestimony whereof we have signed our names to this specification JOSEPH GOULDBOURN. FRED KICKS.

Images