US1169872A

US1169872A - Gripper mechanism for pulling-over machines.

Info

Publication number: US1169872A
Application number: US57957910A
Authority: US
Inventors: Arthur L Russell
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1910-08-29
Filing date: 1910-08-29
Publication date: 1916-02-01
Anticipated expiration: 1933-02-01

Description

A. L. RUSSELL. GRIPPER MECHANISM FOR PULLlNG-OVER MACHINES. APPLxcATloN FILED Aue.29, 1910.

l. M9372. Patented Feb. 1, 1916.

4 SHEETS-SHEET l.

WVM/MR.

A. L. RUSSELL. GRIPPER IIIECHANISM FOR FULLING-OVER MACHINES.

APPLICATION FILED AUG.29. I9I0.

ateute Feb. l, 1916.

4 SHEETS-SHEET 2- WWA/5555 A L. RUSSELL. GRIPPER MECHANISNI FOB PULLING-OVER MACHINES.

APPLICATION FILED AUG.29, 1910.

Patented Feb. 1, 1916.

4 SHEtTS-SHEET 3 ni@ h Fig?. I MTA/5555:

/A/z/g/WH.

A. Lfussm. GRIPPER NIECHANISM FOR PULU-NG-OVER MACHiNES,

APPLICATION FILED AUG .29,1910.

5mg/1 IMM FFCE.

ARTHUR L. RUSSELL, OF HYDE PARK, MASSACHUSETTS, .SSIGNOR TO UNITED SHOE` MACHINERY COMPANY, OF PATEBSON, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

GRIPPEB MECHANISM FOR PULLING-OVER MACHINES.

Lil/Nikhil?.

Application led August 29, 1910.

lle it known that I. ARTHUR L. Bussum, a citizen ot the TJnited States. residing at Hyde Park, in the county of Nortolkand State of Massachusetts, have .invented certain improvements in Gripper Mechanisms tor Pulling-@ver Machines, of which the following description. in connection with tie accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several iigures.

T his invention relates to pulling-over machines and is herein illustrated as applied to a machine ot the type shown in United States Letters latent No. 1,020,387, granted Junev il. i912.

i-in object ot this invention is to iin-- lengthwise. oi the last for. 'straightening` the toe tip seam or re-positioning the pulled upper upon the last. this tip straightening adjustment being effected by a hand lever and connections to the two side grippers.

An adjustment ot the upper transversely oi` the last is effected as therein described by moving the handle ends ot' the side gripper' operating levers in opposite directions. one upwardly and the other downwardly. It has been proposed to provide means connecting the side gripper leverswith a toot treadle by means ot' which the front ends of the levers and the gripper-s carried thereon can lowered for relaxing the tension on the upper held by the side gripper-s while the tip straightening adjustment is being effected. T his permits such adjustment to be made more easilyr and with less strainingot the upper than would occur it the adjustment were made while the upper materials were tightly held in contact with the last. lt is found that one of the yieldingly act-uated side gripper operating levers is sometimes moved by the power operating mec-hanism ot' the machine into a ditfereht vertical position trom that to which the lever'on the other side ot the machine is moved, because the upper stretches more on one side than on the other or gripped lower on one side,

Specification of Letters Patent.

Patented Feb. l, 1916.

serial No. 579.579.

or they may be moved into such different relative positions for transversely adjusting the upper prior to tip straightening.

A feature of this invention consists in providing tension relief mechanism by`which two side gripper-s can be lowered together in any relative positions whichv they may .occupy without disturbing such relative positions. In an illust-rated embodiment ot' the linvention equalizing means is arranged between a source of manual power and the gripper levers by which they may each be moved through the same distance from whatever similar or dissimilar position they may occupy. By this arrangement the tension on the pulled upper will be relaxed equally at the two sides of the shoe after which any required adjustment of the upper longitudinally around the last for tip straightening or transversely of the last may be eected. In the latter adjustment the equalizing means will be shifted and will insure the re-tensioning of the upper in its corrected position. rlhe equalizing means may take the form of an equalizing bar with connections extending from suitable points on the two side gripper levers as, for example, the form of a cover piate loosely lying upon the forepart of two treadles each connected to a side gripper lever. `With this arrangement pressure upon the cover plate will move both gripper levers together equally from whatever like or unlike position they may occupy with the pulled upper'under tension. The ends of the treadles may advantageously be uncovered and adapted to be engaged and depressed by the heel of .the foot having its forepart on the cover plate. By this a1"- rangement the treadle connected with either side gripper lever may be depressed relatively to the treadle connected to the other side gripper lever whereby the side grippers can be moved relatively or in opposite directions vertically to effect shifting of the upper transversely about the last while the tension is relaxed. :tt-should be noted that this transverse adjustment can be made Without necessarily using the hands ofthe operator, his hands being free for other purposes as, for example, for manipulating the tip straightening lever to shift the upper lengthwise about the last, or the shoe rest lever with which the machine is equipped to' move the last lengthwise in the relaxed upper. rlhe connection between the treadle or soy treadles and the side grippers may be located at the rear ends of the levers for lift-A ing vsaid ends against the tension of the usual springs throughwhich said levers are actuated from the power shaft, oralternatively the treadle connections may extend to eccentric bearings on, which the side gripper levers are fulcrumed and which are arranged to be controlled by the treadles to lower the fulcrums of the levers for relaxing the ten sion on the upperand to raise the fulcrums for restoring the tension on the upper. In

bf died in mechanism for closing the grip-4 pers initially with' a light grip which willbe adequate to straighten the upper to the last and will then allow the upper to slip between the jaws until a predetermined point is reached in the gripper movement whereupon an additional closing of the jaws iseffected to stop the slipping-'of the upper and insure that it shall be pulled and stretched during the remainder of the gripper movement. y

As I am advised it is new to provide gripper operating mechanism by which to straighten an upper and thenallow lost motion while the operating mechanism con tinues to move and thereafter to resume upper pulling action to tension the upper whether or not said mechanism secures thisresult by operating as herein shown; to close a gripper lightly, move it through a portion of its stroke and then further close it for a further upj'ierpulling movement. It

is also new. to seize an upper with force to pull it lightly until the resistance causes the upper to slip in the jaws, and thereafter tighten the grip on the upper and ypull it firmly, with oi' without provision for predetermining the length of the 'finaly upper stretching portion of the grippei` inovenient.

"A novel feature of the invention is to be found in the yillustrated embodiment of the foregoing in which mechanism is provided for closing` a gripper iii two steps which are separated by a portion of the pulling' movenient. .As herein shown grippers of a known type heretofore employed in this ,iiia chine are initially closed by the action of a lighter spring than that previouslyv used p and which is arranged to effect a relative movementof separation between the jaw carrier and hn actuating bar.' The arrangement is such that the carrier is held vertically stationary by Vthe spring while the closing bar rises until the grip on the upper V equals the force of the spring. The bar is then further lifted by the power mechanism of the machine andlifts with itself the carrier and the jaws to pull the seizer upper. It. will be understood that the strength' of the'closing spring measures the force With which the grippers seize and hold the upper. In accordance with this feature of the invention provision vis made for applying an additional jaw closing'force at a predetermined point in the upper pulling movement, or updraw movement, to set the jaws hard against the upper, arrest anjlv slipping which may have occurred, and insure a stretching of the upper during further updraw movement. 'lfhis further movement vmay be predetermined ,in length to take a measured lengthV of stretch out of the previously, .straightened or lightly tensioned upper.

The additional jaw closing force is applied as a resistance to the upward movement of the gripper jaw carrier and causes, or tends to cause, the actuating bar to move with -relation to said carrier and jaws and tighten 'the grip on the upper by` a continuance of the initial .jaw closing movement. This re- Isistance is herein obtained from a supplemental closing spring which is arranged to be encountered by the .carrier at a p oint in its movement which can be varied to cause final closing to occur earlier'or later. The supplemental spring serves to'tighten the jaws increasingly as the updraw movement proceeds and thus to compensate for or to equal the increasing strain on the upper tending to pull it out of the jaws. Advantageously a stop may be arranged adj ustably to liinit the updraw movement ofthe gripper lever,

or all the gripperlevers of the machine, forV giving a measured length of stretching of the upper. It is desirable to cause the jaws to tighten immediately at the point selected' for final gripping to take place in order that the slipping of the upper between the jaws shall be arrested with certainty. As a pre caution to insure this result, pneumatic 'stops are herein shown as arranged in the path ofthe jawcarriers. These pneumatic stops serve not only to set the jaws tight .upon' the upper as soon as the jaw carriers encounter the stops vbut they serve the additional purpose of buffers to insure a gradual linal pulling movement as the air escapes from the cylinders. Advantageously the springs and the pneumatic stops can be combined into one construction, the springs being inclosed'in the stops.' Advantageously the machine will'be arranged to cause the grippers to assume a shoe receiving position low enough to insure ample opportunity for seizing 'short or scantil)T cut uppers, and preferably provision will be employed for :mesma adjusting the shoe receiving position of the several pairs of grippers.

rThe invention as thus far described is herein applied to the side gripper mecha.-

nisms. although it may be applied to the toe gripper it' desired.

Another important feature ot' the invention consists in provision tor actuating the toe gripper to impart thereto an initial Jt'orward movement. Preferably ar toe gripper is employed which is long and curved to grasp the upper at the opposite sides ot the torepart as well as at the toe end ot' the shoe. ln accordance with this teature ot the invention the toe gripper is initially actuated lengthwise of the last with little or no updraw. By this movement the upper is tirst straightened out. and it may be tensioned, lengthwise over the last without being bent up over the toe end ot the last. ln so doing the upper is tightened about the rear portion of the last and. particularly it' the long curved grippers are employed, is drafted forwardly along the whole length of each side edge. This occurs before the side gripper-s close upon the upper and serves to( prepare the upper for the updraw and the overpulling' in a way similar to that which is practised by many workmen who seize the upper with the lingers or with pincers and try to set the entire upper forwardly upon the last and then hold it in such condition while they present the shoe to the machine. Preferably the gripper actuating mechanism will be arranged to enable. further, manual actuation of the toe gripper fois wardly to be ett'ected after the initial automatic actuation thereof. Forthis purpose the illustrated embodiment ot' this feature ot the invention includes means for ell'ecting automatically a forward movement ot the curved toe gril'iper to strain the sides as well as the middle portion otl the entire upper forwardly and devices wherethrough said means may bc Jfurther actuated by the operator in the usual period ot the machines rest to move the toe gripper forwardly. Means is also provided which is connected with the long curved toe gripper by which said gripper may be moved rotatively or substantially in the direction ot' its curved length to adjust the upper about the toe portion of the last. This feature ot' the invention will preferably be embodied in a gripper which' ''omprises a plurality ot sections ot which those on either side otl the middle o'l the toe will be mounted tor movenu-nt about a .separate axis located on thc adia cent side ot the central axis about which all sections can turn as a whole. For some conditions ot worhV the machine actuating mechanism may lic arranged to delay thc closing oi the side grippers until aitcr the til-st dwell in the mach-ine`s oi'ieration. thus tacilirating the a ljustment ot the upper about the toe port-ion ot the last by the rotative movement of the curved toe gripper.

The several features of this invention. including certain details ot' construction and combinations ot parts, will more fully appear in connection with the following description ot' an embodiment ot' the invention which is illustrated tor the purpose of explaining one way in which the invention may be employed.

.Figui-el ot' the accompanying drawings a side elevation of a machine en'ibodying this inventiong Fig. 2 is a perspective view ot actuating mechanism connected with the sidi grippers; Fig. 3 shows a modification; Fig. -l is a perspective view ot actuating mechanism connected with the toe gripper: Fig. 5 is a detail thereof; Fig. ('is a plan illustrating an adjusting operation to be` eli'ected b vl the toe gripper; Fig. 'i' is a side view ot the side grippers, and Fig. S isa section substantially on line ot' Fig. 1T.

The illustrated machine, which will be briefly described and ot' the previously known portions ot' which more complete eX- planation will be found in said prior patent. comprises a sole or bottom rest 2 against which the operator presents the shoe, and a heel rest t which is advanced to position to resist rearward displacement ot the shoe after the gripi'iers begin to pull upon the upper. The'toe gripper is indicated in Fig. l at 5 and the side gripper-s at each being guided in the machine trame and connected to an updrawing lever l() the handled ends ot' which extend into position to be seized by the operator and the tails of which in the rear of their fulcrum rod 9 are connected to cams l2 and 13. The connection ot' the side gripper levers is made yieldingly through the springs 1l and a slide 15 to thecam li). and the toe gripper lever has a similar yielding connection with the cam l. The cam lowers the toe gripper to a shoe receiving position in which the jaws extend below the plane ot the shoe bottom as that plane is determined by the sole rest. and where the inner .law serves as an abutment or end positioning` stop for the toe ot the last. vrl`he side grippers also have a connection shown in detail in Fig. Il with raclcba rs 2() that engage respectively with the upper 'and lower sides ot the toothed portion a shat't 22 having a hand lever 2t b v the movement ot' which the side grippers can be siiultaneously moved. but in opposite directions. whereby an adjustment ol'l the upper is effected longitudinally about the last. Adjustment ot the upper trans versely about the last may be effected by the handled levers l0. one of which may be upraiscd and the other depressed. to shitt the belt of upper held b v them toward either side otl the last. The lirst ot' these adjust ments is used mainly to straight/.fn the toe tip seam of the shoe and the second to position the throat or lace opening of the upper suitably upon the last. IAs explained in said patent.the machine comes automatically to restwith the upper under tension to permit inspection and the described adjustments and such other as are'needed. 'When the machine is restarted the grippers carry the upper over the last bttom into position to be fastened by the tackers described in said patent, or otherwise. The machine is l1erein shown las equipped with a. toe lasting mechanism by which the toe portion of the upper is overworked into finally lasted position. rl`his mechanism7 as more fully described in United States Letters Patent No.

1,135,949, granted April 13, 1915, comprises end embracing wipers 30 which are actuated to wipe the upper upwardly toward the edge of the last by a hand lever 3i). and are advanced and closed by a hand lever 33@ to force the upper into position where it is secured by a binder of wire or the like. Further description of the mechanism thus brieiiy outlined and of cooperating mechanisms will be found in said prior patents.

l In addition to the starting treadle 1)5 by which the power is applied. the machine is equipped with treadles 36. fulcrumed on the same rod 3T 'in the base of the machine. and operating' rods 38 which extend to the side gripper levers for actuating them manually and by which the side grippers 'an be raisedy or lowered while they hold 'the upper under tension.I 'lhe forward portions of the treadles are overlaid by a cover-plate 40 where-the ball of the operators foot comes. This coverplate serves an equalizer through which pressure of the foot may be transmitted 'equally to move the two side gripper levers' alike. In practice one `gripf per and its treadle often rises farther than the other because of unevengripping or unequal stretching of the upper materials or because of adjustment to move the upper transversely about the last and to meet this condition the. cover plate is pivotally con-- nected at 42 to one treadle and rests loosely upon the other so that it adjusts itself automatically to the 'relativeposition ofthe two treadles and is capable of actuation to move' them equalI distances from whatever relative position the two treadles and their grippers may occupy when the foot is applied to the cover-plate. rl`hus the tension may-be relieved without any liability of disturbingv the relative positions of the side grippers to each other and consequently effecting nniladjustment of the'upper or losing' tbc transverse adjustment which may have been previously made. lrctirably thc treadlesextend l'rom undcr-the cover-plate into position to be engaged alternatively by the heel of the operator. if desired. to move .them relatively and thcrcby cll'cct any required relative movement of the two side grippers in the direction to shift the upper transversely about the last after the tension is relieved. This is done, as will be obvious, without requiring the use of the operators hands upon the handled updraw levers 10 and leaves both his hands free for other uses such as, for example, manipulatingthe tip straightening lever 24 or the heel rest advancing lever it which is connected through the pinion shaft 44 and the rack 45 with the heel rest 4 to adjust the rest and thereby the last longitudinally in the upper while'the tension of the upper transversely of the last is relaxed by the foot treadles. Also the `toe gripper may, while the tension ofthe sidey grippers is relaxed. be moved by its handled lever 10 to increase or relax the longitudinal tension onthe'upper or by its new level' TAO as hereinafter described.

ln accordance with the prior invention shown in Patent No. 1,055,016. granted onapplication of Eli Brothers. a single treadle, like the treadle 36', is shown connected to both side gripper levers. ln Fig. 3 I have shown at 125 an equalizer connecting the two 'which relative positions vary more or less because of differences in the elasticity of. the upper stock in different portions of tht-l shoe.

ln Figs. 1 and 2 the treadle rods 38. actuated fron'rthe treadles 256 thrtmgh the equalizer l0, have rack teeth on their upper ends which engage toothed yextensions i8 of the pivot rod 9 which is formed in two sections for separate movement. Each toothed section of the rod i) carries an eccentric mounted in a cage 4.9 that can slide in the lever 10. The eccentrics are arranged on the rods 2) to cause depression of the treadles to lift the side gripper levers and to cause elevation of the treadles to lower thc levers. 'lhe cover-plate -arries a `pawl 51 which engages a ratchet bar to -secure the treadle down. 'lhe ratchet bar is pivoted to the lioor plate and is held against the pawl by a spring but can be tipped backwa rdly by the toe of the foot onthe treadle. The ratchet teeth are set in a groove to avoid engagement with the operators shoe. Kol.'- mally thc treadle will be secured in an intcrmediate position to permit additional depression to lift the side grippcrs or either of them for further pulling the upper manually. if desired. after the initial. power effected pull. leleasc ol the pa \vl and the risc of thc trcadlc thereby permitted. will vturn the ccccntrics 5() to relax the tension of isa under mesme' to upper seizing position by the power at the end of each cycle, being stopped at appropriate elevation by abutments on the .trame of' the machine after which they put compression the gripper closing springs 55 as later described. The abutments for the side grippers, see Fig. 7, are formed as opposed inclines between which these grippers are centered transversely oit.' their length, or returned to normal position from the tip straightening adjustment. The abutments are herein adjustably supported on the frame by reversely threaded screws :Si which permit'the 0pposed abutments to be set different distances apart to allow the grippe'rs to be positioned therein higher or lower for seizing the upper. Preferably when the gripper closing mechanism herein described is employed the grippers will be always positioned low enough to seize readily even short uppers and uppers on lasts which have low balls and high toes which hold the upper initially low down at the side grippers. The abutments 525 can alsofbe adjusted by the screws tolocate the grippers farther forward or A (backward in the machine as vill be obvious from the drawing.

The jaw closing sprlng of the grippers,

see Fig. S, which is put under compression by the power when the grippers are-returned to upper seizing position, acts downwardly against a shelf on the jaw carrier and upwardly upon the actuating bar which is in- A dicated by the character T5 to agree with Figs. 4 and 5, although it will be understood that the closing mechanism in the re specthere under consideration is essentially the same for the side and the toe gripper.

This spring, which forces upwardly the bar T5 and its foot piece 85 to rock the pivoted jaw to Yard the fixed jaw, is only strong enough to effect a light gripping of the upper materials by the jaws. The hold ot the jaws thus effected is firm enough, however, to cause the upper to be straightened up as the lever 10 rises and to cause the upper to be more or less tensioned and then to permit the upper to slip between the jaws. The upper may slip in any pair of jaws after the upper has been straightened up or drawn to the last and tensioned lightly at each of the gripped places. (lf course, if one gripper, as the one on the outer side of the last, is positioned lower by the abutments 58 than the gripper on the inner side of the. last it will be raised sooner than the other gripper by their common operating cani l2 and it will begin to straighten up the upper before the Igripper on thde inner sidc docs so and thereby will tendr to draft thc upper toward the outer side of' the last, as is required to und", an upper fit properly some shapes of lasts. For each gripper there provided a stop or abument which then foot S5 continue to rise iuiinterruptedly with the lever 10 whereby the jaws are further closed hard uponthe stock to discontinue the slipping of the upper and compel it to stretch with the further movement after the retarding resistance has been overcome. For this purpose, as herein shown, the frame of the machine carries for each gripper a pneumatic cylinder 8G in which fits a piston 8S from which depends a rod 90 arranged to be engaged by the gripper jaw carriers at a point in the rise of the latter which is predetermined by the adjustment of stop nuts 92 on screw stems which project from the gripper carriers. ,The upper portions ot' the stop nuts are sleeves which loosely embrace the screw stems and over which the. foot of the rod 90 slides to guide the latter. The

cylinder has a suitable vent and valve as is cnstomaryand a spring St is associated therewith and with the piston which preferably oii'ers a substan ial resistance to the displacement of the piston by the gripper carriers'and also acts as a return spring for the piston. rhese retarding means. it will be seen, suddenly check the rise ot' Vthe jaw carriers with the actuating bai-,T5 and cause the jaws to bite sharply into the upper. This biting occurs at a moment when the upward movement ot' the jaws has been interrupted so that snatching and tearingI of the upper is avoided and the pneumatic cylinder assures a comparatively slow further rise of the grippers for finally stretching the upper. rI'he gripper cams 12 and 13 of course complete their movement in the usual time and in doing so the springsl 14 are compressed to store up power which they eX- peud in completing the stroke of the levers l() and the upper stretching movement of the gripj'iers so that ultimately the upper is stretched to the extent for which the machine is set but the final stretching occurs slowly and is completed after the cam shaft has come to rest. This slow final pulling of the upper is desirable for thus the. upper will stretch more without danger of tearing than is otherwise possible for it to do. lt will be understood that with the described arrangement the. upper is first lightly seized at a level that may bc as low as is convenient for getting hold of the upper in the position in whicln it conies to the machine ered, and the jaws are firmly set on the stock. They then proceed slowly to stretch the upper as the levers 104 complete their stroke. Stops 95 are carried by the' levers to engage the machine frame and adjustably limit the eXtent of the lever movement. By suitable adjustment of the stops 95 and the screw stops 92 a measured length of stretch can be taken out of the upper after the initial upper straightening or initial tensioning operation.A The closing spring 55 for the toe gripper may advantageously be strong enough to hold the upper firmly for the foredrawing Voperation if the toe gripper mechanism here described is elnployed but .the cylinder 8G and piston 88, iff they be used with the toe gripper will insure a slow, gradual, finalstretching by that gripper as well as by theI side grippers. The spring 94 may be omitted from the cylinder for the toe gripper.

-The side gripper orgripper mechanism preferably comprises two pairs of jaws and two jaw carriers 95, as is shown in Fig. 7.

lilith these jaw carriers and jaws cooperates a single actuating bar 75. There is a closing foot 85 for each pair of jaws and thetwo feet are connected together and to theactu ating bar byan equahzer 9G.A This mechalnism is well known and in l,common use'and it is described in Unitedy States Letters Patent No. 1.030.522` granted June 25. 1912. on application of -Ronald F. McFeely. The front pair of' jaws is arranged to-engage the stock of' the tip seam and the rear pair of jaws is arranged to engage theupper that extends over the ball of the last. The stock 4 of the .seam does not stretch much and also it usually lies closer to the lastwhen the upper -is applied than does the upper in the rear of the seam., This is because present lasts have a more or less exaggerated height at the. toe and a corresimmling depression between the toe. and they instep into which it is one. object of'this invention to pull the -upper down into contact with the last before. the measured upper stretching movement begins. For this purpose thel rear pair of jaws may be. arranged to reach down lower than the front pair. and in rising theI equalizer 96 permits the front jaws to pause and the rear ones to continue their upward movement until they have drawn the upper down into the hollow off thelastidinto such contact therewith as to produce a resistance equal to that offered by the stock of' the tip seam. '.lhereafter both pairs of jaws will move to-tension the stock equally. If' the upper is held under strong lengthwise tension by the toe gripper while. the side grijil'iers act it requires considerable force to draw they upper down into the hollow of thc last.v rl`his condition may render it desirable to close the rear pair of jaws tightly upon the upper before the front pair is so closed. To provide for doing 'this a sepaaccount of the fact that the lining really requiresv only to be straightened firmly and does not need the-stretching, or actual ex tending, that the upper requires, or for any other reason, one pair of jaws will be engaged with the lining and the other pair with the upper and the stops 92 will be adjusted to cause the desired relative lengths of final pulling movement to be effected. 1f desired the sto 92 which coperates with the carrier andjaws that hold the lining can be adjusted' up to an inoperativeposition so that only the upper stretching jaws are subjected to the second step of the closing action. In this use 'of the machine the pivoted equalizer 96 will be replaced by a connecting bar which has no pivotal'movement. Also, preferably, .the jaws that engage the lining will be so formed by ofisettingthem in an obvious manner that they will stand closer to the last than the upper -engaging jaws and not deflect outwardly the upper which extends over them.

The bar GO of' the toe gripper has a head (32 confined by plates 63 in a recess in the toe gripper lever 10 in which said bar may have endwise and rotatory movement, and a spring G-l serves to press the bar do-wn. cam block (S5 having a rearwardly and downwardly inclined back face is mounted to slide on the bar 60 and is engaged on said inclined face by the gripper spreading bar (5G. This bar is a part of' the grippei spreadingl mechanism of the machine of said pat'- ent which has for its purpose to position the grippers apart suitably for the upper seizing operation and to retract during the second portion of the power operation ofthe machine to permit the inward or overdrawing movement of the grippers by suitable springs. one of which is shown at 67 in F ig. "Si Barth 'is rigidly held out during the updrawing movement and ucompels the block (S5. as it rises, to force the toe gripper forwardly. This block is connected as herein shown by an unyielding rod (S8 to the updraw lever 10 so that by the initial upper pulling movement of the lever 10 the block is drawn upward upon the bar 60 which remains at rest. or-substantially so. because of the lost motion in the recess in lever l0 and the action of spring fl-l: This rise of cam block 65 effects a forward move-` If it bedesiredto pull the upper and the lining separately on einem@ nient ot' the toe gripper before there is any sulistantial upward movement so that the upper is drawn torwardlv or lengthwise of the last. as the tiret, step in the pulling-over operation after the upper is seized. Preterahlv the toe gripper is broad enough to impart the initial forward Stretching to Suh- Stantiallv the entire width ot the upper thus doing tor lv upper what a careful workii'ian often does in pulling-over Shoes h i' hand. The extent ot the initial t' draw can he varied liv adjusting the rod u8 whit-li is formed in two seetions eonneeted hv a turn huekle. The head on the upper end ot' the rod is eonined hjv the plate i'l in a verticallyY elongated reeess inl the lever 1l) to allow for the tiret portion ot the rise ot' levei' l() which eoineident with the eX pansion ot' the elosing springs for shutting the `iaws without otherwise disturhing their relation to the upper. The jaw Closing meehanisni will he esseniiall)Y the same as that deserihed tor the iside gripiiers. lt :should he understood in eonneetion with lioth the to and side grippere that the initial vlosing movement is a eoniplet'e Closing ot the aws li)v whieh theiv .seize and hold the upper. after whieh thev pull it more or less. and the eeeondarv elosing deviees ari' to tighten the grip and set the jaws more hi-nilv upon he stoel( preparatoriY to the linal pulling. ln this respeet this invention is to he distinguisthed from prior suggestions for approximate and tin-al elosing deviees whir'h perform two stepn in a Single seizing operation lieiiore the jaws are moved in the direetion to pull the upper. The ram l?) operating the toe gripper is airanged to elose and to impart this 'fore-- drawing movement to the toe gripper hefore the side grippers are elosed. irorision is herein made for etl'eeting manuali)v a further loredraw h v the toe gripper during this period oi rest while the upper is under tension. To thisl end a lever TO is ronneeted to the liloehV and the rod (SS li'v the holt (3l) whirh attaehes the rod to the liloelt. rThis lever is it'ulerumed` at T2 to a support 7l whieh is vertie: ll'v stationaryy on the 'oai' l() so that li'v depressing the handled end of lever T() thevliloelt h5 ein lieelevated to torre the gripper tai-ther forward while the upper is held under tension. it'. upon inspeetion. additional foredraw appears to lie desirahle. spring (ST presses the liloel( (35i down as tar as the rod (tu permits.

The support 'il for lever T() is a hloek whieh is s vmnietrie; ll v mounted on the har (l0. see Figs. l. 2.4. 5 and l and from the liloek at opposite sides ol5 thx axis ot har (3() are suspended the separate operating liars4 T5 of the .seetional gripper jaws, These `aws are formed ot' a leneth and euri ature to F .engage solistaiiiiallj,v

the full width of the shoe upper ai' theI toe end and to extend LOTE'.

l' hv pre. wardl)Y as iiidieated in Fig. l).

around to the sides of the toe as shown in l. laeh ot' the gripper sections iS free to turn about the axis olf its rod and therehy to adjust itselt to the `width and shape of the last. A light AQpring 'Til on a rod T8 nornialhv holds the seetions laterally extended for a medium last while shorter springs TT, l, pernii' further extensions ot t e seetiiiis h r a wide last and i thuinh nuts T.) provide for oeiug und rstood tliatthe L;

contorni tli inse1 res t disk 8O whiffli guided in wave; in plate-S fill supiorted in the traine whereliv to allow the l'orward and liaelci 'ard inoreinent ot the gripper mechanism as i whole. "lfhe evei- TG malv he eiiiploj.' l

i ed to eiteet if the toe gripper a ioutthe axis o ing` said lever foi\i';-tllf Aor 'ln sueh inanipulation one side section ot the gripper is iioved forwardlj and the other :side section otation 'tselt' upon its own axis. Thus a forward streteh is put upon the upper at one side olf the shoe while the toredi'awing pull is relaxed onA the other side ol the shoe. 'l A adjuatinent ot the toe g ipper tip stra ,e ing niav he eli'eeted. 'i he earlier deseriliea. meehanism h v wliieh the tension el'liected oy the xside grippers is relaxed liv toot. treu-dies ll' oliviouslv eiioperates lo render the tip straightening hv the toe gripper inueh more easv and etl'eetive li'v reducing the trietionoi' the upper over the hall of the last. preliniiiiarv liodilv adjustment ot the toe gripper transverseliv oi the maehine for right and lett lasts ma;v lie made h v the hand le ver Tl. lu some kinds of worhV the rain l2 ma v he set Ior formed to dela)r closing of the side grippers until after the periodot' rest and inspeetion inthe maehine`s operation and the toe gripper merhaniem will then he depended upon entirelyY to elleetthe tip straightening adjustment. llv exercising rare in presenting the upper in Aposition to lie gripped the tip straigluening adjustment is redueed to a minimum and ,such eareful presentation is made easier in this maehine liv employing the gripper jaw end taeea aS gage lilies with relation to whieh to position` hf; this eoniliination the toe grippersz e: .feet transverse adpistinents to position the lare opening ol an upper not :vet ser/:ed in' the side gi'i'ipers. Another use for which the described treadle mechanisn'i connected with the side grippers is adapted is for depression during the power operation thereon to delay closing of the side grippers and seizure of the upper by them until such time relative to the operation and adjustments of the toe grippe'as the operator selects for each shoe. Thus at any time the operator may manipulate the treadles .36 and at.

the saine time andcan hold down the side grippers andprevent them from seizing or milling the upper until after the machine has come to rest and the upper has been adljusted by the toe gripper. Also it will be obvious that the treadle connection with one side gripper can be moved to adjust its eccentric 5() relatively to the eccentric for the other side gripper and thereby cause one gripper to pull the upper engaged hy it more than the upper engaged by the other side gripper. This may be advantageous in pulling-over shoes on some styles'ot' right and leftlasts when it is desirable that the gripper engaged with the. upper on the outer side ot' the last shall' pull harder than the gripper that engages the upper on the differently shaped inner side of the last. The

,treadles furnish means constantly under the operators control liy which to cause the automatic mechanism to pull the upper at thc two sides ofthe last to such diii'erent exwhether or not every l'eature o'l the inveni tion has heenparticularly pointed out herein and l intend that the claims shall he construed and interpreted to-this end.

l claiinl. pulling-over machine having. in coin-- hination, a plurality oi" grippers and actuating means Jr'or causing them to put an upper under tension about a last` said actuating mechanism having' provision `tor moving ditl'erent grippers through dill'erent dis tances. and a single manually actuated device connectaal operatively with two of said grppers located at' opposite sides oi' the last and arranged to positively move each gripper the same distance lrom whatever posi-- tion it may occupy to change equally the tension linder which the upper is held hy the two grippers.

2. A pulling-over machine ha viiigzin combination. erippers arranged at opposite. sides of a last and actuating mechanism therefor including yielding elements cooperating with opposed grippers whereby they may be actuated through diTei-ent distances in putting the upper under tension, means arranged for manual operation to move opposed Side grippers together to change the vtension on the upper, and an equalizer between the source of manual'power and the side grippers to insure equal movement of each side gripper from whatever position it may occupy relatively to the other side gripper.

3. A machine of the class described having, in combination, a plurality of pairs of gripi'iers and automatic mechanism for causing the grippers to pull simultaneously and hold underv tension the upper at opposite sides of a last, and a single manually controlled means for effecting a movement of a plurality of pairs ot' grippers simultaneously in the direction to relieve the tension on the pulled upper, said machine having -provision .for causing said means to move equally said grippers at opposite sides ,ot the last. 'l

et. A pulling-over machine having. in combination, grippers for engaging the upper at opposite sides ot' the torepart ot' a shoe to pull the upper and hold it under tension, means for movingthe grippersand the. last relatively to straighten the toe tip seam, and

a single manually operated means for conipletely relieving the upper'oi' the pulling strainv equally at the two sidesoi the lastduring the tip straightening operation.

A pulling-over machine. having` in coinbination, side grippers, tip straightening means, and in 1ans adapted t'o relieve the tension'on the upper during the operation ot' the tip straightening' means, said tension reliet means including an equalizer arrangedioa,

to cause an .equal movement ot' the vtwo side 'grippers from whatever position they may occ i i I y.

tl. A pulling-over mach-ine having,in coinhination` grippers arranged to seize. and pull an upper at opposite sides ot a last and hold it. under tension, handled levers through which the grippers are so actuated, and additional means for completely relieving th`e tension on the upper so held hy the side grippers and arranged to permit movement ol' the grippers relatively to adjust the. nppei' transversely oi' the last while the tension is relieved.. v

7. pulling-over machine having, iu comhiuation` erippers arranged to seize and pull an upper' at opposite sides oi a last and hold it under tension. and a single means for posi- `tively moving opposed side gripi-iers in a dithe upper transversely on the last while the tension is relieved.

S. A pulling-over machine having, in coinbination, "rip pers arranged to seize and pull an upper at opposite. sides ot' a last and hold it under tension, means for moving both opposed side grippers together to relieve the tension on the upper, additional means for moving said side grippers relatively'in the direction to adjust the upper transversely about the last, and means formoving the side gripper-s in the direction to adjust the upper longitudinally about the last, said three means being arranged for simultaneous operation by a single workman.

9. A pulling-over machine having, in combination, gripper-s arranged to seize and pull an upper at opposite sides ot' a last and hold it under tension, means including a single actuating member for moving both opposed side grippers together equally irom whatever relative positions they may occupy to relieve the tension on the upper, and ad: ditional means for moving said side grippers relatively in the direction to adjust the upper longitudinally about the last, said two means being constructed and arranged to permit operation at the same time.

10. A pulling-over machine having, in combination, a last rest, grippers arranged for seizing an upper at opposite sides of a last,.yielding means through which said grippers and rest are relatively actuated to pull the upper. treadle connections through which the 'grippers and rest may be relatively moved to relieve the tension on the upper, -and an equalizer through which power is transmitted to effect equal movement of the two gripper-s for the relierl oi tension.I

11. A pulling-over machine having, in combination, a last rest, grippers arranged for seizing an upper at opposite sides or' a last. yielding means through which said grippers and rest are relatively actuated to pull the upper, treadle connections through which the grippers may be moved to relieve the tension on the upper. said machine including separate treadles tor each side gripper, and a relatively movable cover-plate through which the power applied to the two treadles is equalizcd.

12. A pulling-over machine having, in combination, grippers arranged to seize an upper at opposite sides of a last, adjacent treadles operatively connected with opposed side grippers, and a relatively movable coverplate :tor the two grippers through which Vequal pressure may be applied to the two treadles in different relative thereof.

13. A pulling-over machine having, in combination, gripper-s arranged to seize an upper at opposite sides of a last, two adjapositions cent treadles each of which is operatively connected to a side gripper, and a coverplate supported by one treadle and engaging the other treadle and through which pressure may be applied equally to both treadles,

said treadles having portions extending beyond the cover-plate through which additional pressure may be applied to on treadle..

1l. A pulling-over machine having, in combination, toe and side grippers, power operating mechanism arranged to cause the seizingv and pulling of the upper by the toe and side grippers normally to occur in a predetermined order, and then to come to rest with the upper held under tension for inspection and adjustment, means for moving the toe gripper to adjust the upper around the last. and means arranged for actuation by the same operator during such toe gripper adjustment to relax the tension effected by the side gripper.

l5. A pulling-over machine having, in combination, grippe'rs arranged at opposite sides ot a. last and actuating mechanism therefor including separate levers for opposed side grippers and yielding elements permitting different extents of movement t0 the two levers, eccentric bushings in' which said levers are fulcrumed, land means including an operating member common to both bushings for manually turning said bushings together to change simultaneously and to like extents the positions of the' levers.

1G. A pulling-over machine having, in'

combination, grippers arranged at opposite sides or' a last and actuating mechanism therefor including separate levers for opposed side grippers, eccentric bearings on which the levers are iulcrumed, and treadle connections to said bearings arranged to permit movement thereof together, or independently to cause the tension on the pulled 'upper to be vi ried.

17. A pulling-over machine having, in combination. grippers arranged to engage an upper at the opposite sides and at the toe of a shoe, levers'or actuating the grippers, means tor resting the last against the pull of the grippers, and means which is under the control of the workman while the machine is in operation for relatively adjusting the toe and side gripper levers perpendicularly to the plane of the last bottom.

1S. A pulling-over machine having, .in combi-nation, grippers arranged to engage an upper at the opposite sides and at the toe ot' a shoe, means for resting the last against the pull of the grippers. means for actuating the gripper-s including cams and levers, and eccentric bearings for the levers capable of relative adjustment to change the relation of the grippers to each other.

19. In pulling-over machine, automatically actuated mechanism for pulling an upper, including toe gripping means, andA fplemental upper pulling movement lengthwise of the last.

2l. In a pulling-over' machine, automati-` ment ofthe upper after it has been pulled,

said mechanism including toe gripping means, and'means for manually actuating the toe gripping means forwardly with relation to the last.

22. In 'a pulling-over machine, automatically actuated mechanism for pulling -an uper including toe (fri a )in means havin a 'movement to pull. the upper substantially perpendicularly to the plane of the last bottom, and means for manually actuatingthe' "toe gripping means forwardly in a plane substantially parallel with the last bottom. 23. In a' pulling-over machine, mechanism for-pulling an upper including a toe gripper suspended from an operating lever, and a manually operated cam arranged to engage the gripper between said lever and the upper to move thegripper forwardly.

24. In a pulling-over machine, automatically actuated 4mechanism -for pulling an upper includingtoe gripping means having a movement to pull the upper substantially perpendicularly to the plane of thelast bottom, said`inachine having provision for relaxing the upward strain of the toe gripping means, and mechanism for actuating the toe gripping means forwardly.

l 25. In a pulling-over machine, automatically actuated mechanism for pulling an upper including a toe gripper having a movement to pull the upper substantially perpendicularly to the plane of the last bottom, an'd means for manually7 actuating the toe gripper forwardly and for turning it. 26; VA pulling-over machine having, in coml'iination. upper pulling means including toe gripping means yieldingly actuated to pull the uppersubstantiallyperpendicularly to the plane of the last bottom, and independent means by'which a 4forward pull can 'be cil'cctedby the'toe gripping means, said. machine including means by which the upward pull onthe upper may be relaxed at the'option of the workman'to facilitate the forward pulling of the upper.

. 27. A pulling-over machine having, in

f combination, upper pulling means including a toe gripper, and a single manually actuated means by which the toe gripper further forward movement.`

can be turned about an axis substantially perpendicular to the last bottom and can be Vmoved bodily forwardly relatively to the last.

28. A Ipulling-over machine having, in combination, toe gripping means, automatically operated means for actuating the toe gripping means perpendicularly to the last bottom, and manual means for actuating the toe gripping meansL lengthwise of the last.

22). A pulling-over machine, having, in

,combina-tion, toe gripping means, automatically operated means for actuating the toe "gripping means perpendicularly to the last bottom, means to elfect forward movement of the toe gripping means during said upward movement, and means for effecting 30. A pulling-over machine having, in combination, a broad, curved toe -gripper lformed to engage the upper at the end-and opposite sides of the toe portion of the last', and meansfor imparting to said gripper an initial movement forwardly to strain the full width of the upper lengthwise ofthe last. I

3l. A pulling-over machine having, in combination, a broad, curved 'toe gripper formed to engage the upper at the end and opposite sides of the toe portion of the last, means for imparting to said gripper an initial movement forwardly to strain the full width of the upper lengthwise of the last, side grippers, and means forclosing and moving themto strain the upper transversely of the last after said forward movenent of said toe gripper.

A pulling-over machine having, in combination with side grippers, end grip- .ping means formed to'engage substantially the full' width of the toe portion of the upper, means for initially actuating said end gripping meansforwardly to strain the upper lengthwise' of the shoe and then actuatinglsaid means to updraw the upper, and means to actuate the side grippcis.

33. A pulling-over nachine' having, in combination with side grippers, end gripping means formed to engage substantially the full width of the toe portion of the upper, means for actuating said 'end gripping means forwardly to strain the sides as well as the middle of the upper length- -wise of the shoe, land means for actuating the side grippersifor thereafter seizing the upper aiid straining it transversely of the shoe.

34. A pulling-over machine having, in combination, shoe resting means, toe and side grippeis and operati-ng mechanism constructed and arranged to cause the toe grippers to seize and pull the upper and to bring the machine automatically to rest'for inn spection and adjustment of the upper and the lastr relatively, said operating mechanism being further constructed and arranged to cause the side grippers to seize and pull the upper when the machine is restarted.

A pulling-over Amachine having, in combination, sidexgrippers, broad curved toe grippers comprising a plurality of sections adapted to engage substantially the full width of the toe end of a shoe upper and mounted for movement to effect tip straightening adjustment of the upper, and operating mechanism constructed and arranged to cause the toe grippers to seize `and pull the upper and bring the machine automatically to rest with the upper held under tension by the toe grippers for inspection and adjustment, and when restarted to cause the side grippers to seize and pull the upper.

3G. In a machine of the class described the combination with toe end gripping means constructed and arranged to seize the toe end of the upper, of power operated mechanism constructed and arranged for moving said toe end gripping means and the last relatively and for foredrawing the upper before it is updrawn, and for updrawing the upper. y

37; ln a machine of the class described the combination with pulling-over means including a toe gripper, and means for closing the jaws of the toe gripper, of means for forcing said gripper forwardly, means for uplifting the gripper, and means for holding the jaws from uplifting during the closing and forward movements.

3S. A pullingover machine having, in combination. gripping means for engaging the toe portion of an upper and operating mechanism therefor including means for imparting first an outdrawing movement and then an updrawing movement by which two movements the upper is stretched in two successive steps.

39. A pulling-over machine having, in combination with side grippers and their actuating mechanism, toegrippin-g means and mechanism foiiactuating said toe gripping means to strain the upper forwardly, then upwardly and then either further forwardly or upwardly or both at the will of the operator.

40. A pulling-over machine having, in con'ibination with side grippers' and their actuating mechanism, toe gripping means, means for actuating the toe gripping means to updraw an upper, and means for further actuating said toe gripping means lengthwise of the shoe to apply foredraw to the upper. y

4l. A pulling-over machine having, in combination with side grippers and their actuating mechanism, toe gripping means,

automatifl means for actuating` the same to pull an upper, and manually controlled arranged to foredraw the upper in advance' of updrawing it.

43. A pulling-over machine having, in combination, toe and side grippers, and means for actuating the grippers to seize and pull an upper over a longitudinally stationary last including means to effect foredrawing of the upper at the toe of the last before the lupper is updrawn.

44. A pulling-over machine having, in combination, sectional grippers arranged to seize an upper at opposite sides of the toe end of the shoe, and actuating mechanism arranged to move said grippers to pull the upper forwardly and then upwardly.

45. A pullingover machine having, in combination, grippers arranged for operation upon the upper at the toe of the -last and means for automatically actuating the grippers to pull the upper'constructed and arranged to cause them to impart foredraw to the upper in 'advance of updraw.

46. A pulling-over machine having, in combination, gripping means arranged to seize the upper at the toe of the last, automatically operating means for actuating the gripping means to foredraw the upper, and manually controlled means for actuating said toe gripping means to pull the upper farther forwardly.A i

47. A 'pulling-over machine having, in combination, toe gripping means and automatic mechanism for operating said means to act upon the upper in successive steps in the following order; namely, to seize it, to foredraw it prior to updrawing it, and then to updraw it. i 4

48. A pulling-over machine having, in combination, means for pulling an upper at the toe of the last longitudinally in a forward direction and means yoperating automatically for thereafter pulling the upper at the ball of the last upwardly on the two sides of the shoe.,

49. A pullingl'- over machine having, in

combination, grippers for seizing an upper at the sides and' at thle toe of a last and connected actuating means for the several grippers including .means to move the toe grippers to veffect foredrawing of theupper before the toe portion of the upper is updrawn.

50. A pulling-over machine having, in con'ibination, side grippers, a toe gripper `having curved jaws to engage the upper on the opposite sides and theend of the toe and actuating means arranged to eifect foredrawing of the upper by the said toe gripper before theupper is updrawn.

5l. A pulling-over machine having, in combination, side and toe grippers, means for actuating said grippers to seize'an upper,.pull it and hold it under tension to permit inspection and adjustment, and means for moving the toe grippers forwardly for such adjustment.

52. In a pullingover machine, .the combination with toe grippers, of vmeans for moving said grippers upwardly,-means for moving it forwardly, and an actuator for said two means having va lost motion connection with the lupdrawing means to effect oredrawing in advance of updrawing.-

53. `In a pulling-over machine, the com-. bination with toe grlppers ofgmeans for moving 'said grippers to effect initial foredrawing and subsequent updrawing of the upper', and additional means to eiiect -further foredrawing.

54. In a pulling-over machine, thecombination with the toe gripper, of the lever l0, the operating bar 60 with relation to which the leverhas a limited independent movement, the wedge block 65, and the connector 68 from the block to the lever for the purpose described. i

In a pulling-over machine, the combination with the toe gripper, of the lever 210, the operating bar 60 with relation to which the lever has a limited independent movement, the wedge block 65, the conneetor'GS attached to the block and having a lost motion connection with the lever, and the operating lever 70 for independently moving the Iblock 65.

56. In a pulling-over machine, the combi-A nation with a gripper, of the lever 10, the operating bar 60, the abutment 66., the wedge block 65 slidingly mounted on said bar and coperating with the abutment, and the lever 'TO tor actuating said wedge block.

5T. In a pulling-over machine, gripper operating means, in combination with a toe gripper comprising curved, sectional jaws formed and arranged to seize the upper at the end and sides of the toe, said sections 4being' relatively movable to adapt the gripper to diiiferent widths of shoes, the connecting rod 78 having thespring 76 between the gripper sections and the springs 77 between the respective sections and the ends of the rod, vand adjustable seats on the ends of the rod to hold thesections yieldingly in a normal position which can be varied.

5S. Ina pulling-over machine, gripper operating means, in combination with a toe gripper comprising curved, sectional jaws formed and arranged to seize the upper at 4the end and sides of the toe, said sections being relatively movable to adapt the gripcombination, msm to close the .after to apply per to different Widthsy oi` shoes, the .coni necting rod 78 having the spring 7 6 between the gripper sections and they springs 77 between the respective sections, and abutments for the spring 7 7 on the ends'of the rod for the purpose described. y 59. In a pulling-over machine side grippers, operating means therefor including means to lower the grippers to upper seizing position, means to center 'each gripper in said seizing position, and means for adjusting said centering means to cause the gripper to assume different upper seizing positions longitudinally of the shoe.

60. In a pulling-over-machine side grippers, operating means therefor vincluding means to lower the grippers to upper seizing position, means to center each gripper in said seizing position, and means for adjusting said centering means to position the gripperhigher or lower with relation to the shoe.

pers, operating means therefor including means to lower the grippers to upper selzing position,l\veclge abutments between which a gripper 1s positioned longitudinally of the the gripper.

62. A pulling-over machinel having, in

a gripper and actuating mechajaws lightly upon the stock, then lift the jaws, and thereafter further close the jaws and continue the lifting movement.

A pulling-over machine having, in

combination, a gripper and actuating mechavnism comprising initial closing means, lifting means and supplementary closing means operating only after the gripper has been partially raised.

6%. A pulling-over machine having, in combination, a last rest, a gripper and operating mechanism to close the gripper lightly on the shoe upper and to move the gripper and the last relatively while the lightly closed gripper' straightens up and lightly pulls the upper and then slips onthe upper, said mechanism being constructed and arranged to tighten the grip on the upper at a predetermined point in the relative movement of the gripper and the last and therea predetermined pulling force to the upper.

65. A pulling-over machine having, in combination, opposed side grippersv and operating mechanism to close the grippers lightly onthe shoe upper at' the several gripping points and to move the grippers anc the last relatively while each lightly closed gripper straightens up the upper where it is engaged by that gripper and then slips, said mechanism thereafter operating 61.. In a pulling-over maehine'side grip- I through the opposed side grippers to the upper at lthe respective opposite sides of the last.

(Stil-1 pulling-over machine having, Lin combination, a gripper, and actuating mechanism comprising a light closing spring, lifting means, and a second closing spring arranged in the path of the lifting movement to become operative only aft-er initial lifting movement.

(37. A pulling-over machine having, in combination, a gripper, and actuating mechanism including jaw closing means into operative relation to which the gripper is moved during movement in the direction to pull the upper.

A pulling-over machine having, in combination, a gripper, and actuating mechanism comprising initial closing means, lifting means, and a pneumatic piston arranged to become operative during the lifting movement for effecting additional jaw closing pressure.

69. A pulling-'over machine having, in combination, a gripper', and actuating mechanism comprising pneumatic jaw closing means and mechanical jaw lifting means 4comprising a gripper carrying lever and actuating means therefor.

70, A pulling-over machine having. in combination, a gripper, and actuating mechanism comprising initial closing means and a spring and pneumatic stop to effect additional closing of the jaws during their lifting movement.

71. A pulling-over 'machine having, in combination, a gripper', and actuating mechanism therefor including means to lift the gripper-'jaws for pulling the upper, and means arranged to tighten the grip of the jaws on the upper at a predetermined point after their lifting movement has loeen commenced. l

79. A pulling-over machine having, in combination, a gripper, and actuating mech anism therefor including means to lift the gripper jaws for pulling the upper, and juieuniaticallv actuated means arranged to tighten the grip of the jaws on the work during a part of their uplifting movement and to insure a gradual finish to the uplifting movement.

Til. j'nilling-over machine having, in combination, a gripper, actuating mechanism therefor including means to lift the gripper jaws for pulling` the upper, a jaw carrier with relation to which the lifting means can move, and a buffer arranged to art directly upon the gripper jaw carrier to insure a gradual upper pulling movement.

74. A pulling-over machine having, in Combination, a gripper and its actu-ating.

iechanism, said parts comprising a pair of jaws, a jaw carrier. an actuator between which and the carrier there is provision for relative movement and yielding operating means for the actuator, and a buer ar- :ranged to act directly upon the carrier to delay the final updraw movement.

75. A pullingover machine having, in combination, a gripper and closing and uplifting mechanism arranged to permit the jaws to slip over the upper after an initial tension has been applied and to tighten the jaws on the upper at a predeterminedy point in their pulling movement.

76. A pulling-over machine having, in combination, a gripper and closing and uplifting mechanism arranged to permit the jaws to slip over the upper after an initial tension' has been applied and to arrest the slipping at a selected point which can be varied.

77. A pulling-over machine having in combination, a gripper and closing and uplifting mechanism arranged to permit the jaws to slip over the upper after an initial tension has been applied and abruptly to tighten the jaws on the upper at a predetermined distance from`V the end of the uplifting movement.

78. A pulling-over' machine having, in combination, a gripper and closing and uplifting mechanism arranged to permit the jaws to slip over the upper after an initial tension has been applied and abruptly to tighten the jaws on the upper at a prede termined distance from the end of the uplifting movement, and means for adjustably limiting the pulling movement.

79. pullingpver machine. having, in combination, a gripper comprising two pairs of jaws, means for initially closing said pairs of jaws, means for uplifting the jaws, and means for applying additional closing force to said pairs of jaws separately and in predetermined order.

80. A pulling-over machine having. in combination, a gripper comprising two pairs of jaws, means for initiallyT closing said pairs of jaws lightly, means for uplifting the jaws, said mechanism being adapted to allow the stock to slip after a predetermined tension has been applied in the uplifting movement, and means for applying additional closing pressure to said pairs of jaws in predetermined order.

81. A pulling-over machine having, in combination, a gripper comprising two pairs of jaws arranged relatively to engage the upper stock at and in the rear of the toe tip, and means for closing the pairs of jaws capable of adj ustmentto vary the stock seizing force of the two-pairs relatively.

82. A pulling-over -machine having, in combination. a gripper comprising two pairs of jaws arranged relatively to engage the upper stock at and in the rear of the toe' tip, means for closing theipairs of jaws, and means for applying additional closing force to the pairs of jaws in a predetermined order which can -be varied. i

83. A pulling-over machine having, in combination, a gripper comprising two pairs of jaws arranged relatively to engage the upper stock at and. in the rear of the toe tip, means for closing the pairs of jaws adapted to permit the stock to slip between either pair of jaws after a light tension has been applied, and means for applying additional jaw closing force to stop the slipping from the two pairs of'jaws in a predetermined order which can be varied adjustably. 84. A piilling-over machine, having, in

combination, adjacent pairs of jaws adapted to engage the upper and the lining of a shoe separately, and means to apply dierent jaw closing forces to thev two pairs of jaws for the purpose described.

85. A pulling-over machine having, inv

combination, adjacent pairs of jaws adapted to engage the upper and the lining of a shoe separately, and means operating automatically vto apply a greatei' jaw closing force to the upper holding jaws than to thel lining holding jaws. l

8G. A pulling-over machine having, in combination', adjacent pairs of jaws adapted to engage the upper and vthe lining of a shoe separately, and means to apply an ini` tial closing force to both pairs of jaws .and an additional closing' force to the upper holding .pair of jaws.

87. A pulling-over machine having, in combination, two grippers arranged toengage a shoe on opposite sides of a last, connections therefrom to adjacent treadles, a cover plate by which said two treadles .and the two grippeis connected thereto can be actuated together, and treadle extensions by which additional independent movement can be given to either gripper.

88. A pulling-over machine having, in

combination, grippers arranged on opposite sides Aof a last, actuating mechanism therefor including levers, the .fulcrum i'od 9 havl ing the eccentric bearings 50 for the levers, and the ti'ead'le and connections for permitting simultaneous orindependent adjustment-oi' the eccentrics.

89. A pulling-over machine having, in

combination, grippers arranged to engage an upper at opposite sides of a last, means for opei'ating the grippers to effect initial tensioning of the iippei', and additionalmeans constructed and arranged to move said side grippers for further tensioning the upper and locking them to hold the tension. 90. -A pulling-over machine having, in combination, grippei's arranged to engage an upper at opposite sides of a last, mechanisin foi' yieldingly moving the grippei's and the last relatively to tension the upper', and additional means constructed and arranged for use to move the side grippers relatively for chang-'ing the tension on the upper or position the upper on the 'last and adapted tt retain the side grippers in the relative positions to `which they are moved.

91. A"pullingover machine ,ha-ving, in combination, a gripper, and'actuating mechanism therefor including devices to close the. gripper lightly, move it through a portion of its stroke, then close it firmly and completeits stroke.

92. A pulling-over machine having, in

combination, two pairs of gripper jaws and operating means therefor including devices to close the jaws lightly, raise them through a portion of their. pulling movement, then close one pair of jawsmore firmly than the other pair and complete thepulling movement .of the jaws.

93. A pulling-over machine having, in

`combination, two pairs of gripper jaws and operating means therefor including devices t0 closeV one pair of jaws lightly and to close the other pair' of jaws firmly and toi'aise the jaws to effect an upper stretching movement by the firmly closed jawsand a lining pulling movement by the'lightly closed jaws.

94. A pulling-over machine having, in combination, two pairs of side'gripper jaws for engaging respectively the upper and the lining of a shoe at points located one behind the other lengthwise of the shoe, and operating means for closing and raising the said gripper jaws including means for effecting light initial closing-of the jaws and devices adapted to coperate with said' ini- 1 tial closing means to cause a firmer closing ot the jawsatselected points during the up-A draw movement, said devices including i'elatively adjustable stops 99. by which the uppei' pulling jaws can be made to pull the upper more than the other jaws pull the lining.

95. A pulling-over machine having, in combination. two pairs of side gripper jaws for-engaging respectively the upper and the lining of a shoe at points located one behind theother lengthwise of the shoe, and operating ineans for closing and raising the said gripper jaws constructed and arranged to cause relatively different lengths of etfeo.

tive pulling movements by the upper engaging and the lining engaging jaws.

9G; A piilling-over machine having. in

, combination, two pairs of side gripper jaws for engaging respectivelyl the upper and the lining of a shoe at points located one behind the other lengthwise of the shoe, the lining engaging jaws being oifset relatively to the uppeileiigaging jaws to locate them' at a different distance from the adjacent side of the last, and operating mechanism to effect a light pull by the lining engaging j aws and a stronger pull upon the upper b v Y other pair of jaws.A

coml'iination, a gripper, actuating mechanism therefor including devices to close the gripper lightly, move it through a portion of its stroke, then close it firmly,'and continue its stroke through a predetermined distance, and means to limit, adjustably, said distance.

DS. A piilling-ovei' machine having, in combination, a gripper and automatic actuating means for operating it to act on the upper in successive steps in the following order: namely, t6 seize the upper lightly, and initially tension it, then let the upper slip between the jaws, then firmly seize the upper and finallj7 stretch it through a measured distance.

90. A pulling-over machine having, in combination, a gripper, and actuating mechanisin therefor including a jaw carrier, a bar movable relatively thereto to close the jaws and then lift them and their carrier in the direction of the jaw closing movement, and means for applying resistance to the carrier at a predetermined point in such movement to effect additional closing of the jaws.

100. A pulling-over machine having, in combination, ,a gripper,,andactuating mechanisin thereforincluding a jaw carrier, a bar movable relatively thereto to close the jaws and then lift them and their carrier in the direction of the jaw closingvmovement, and buffers arranged to act on the jaw carriers to tighten the jaws upon the stock and insure a gradual final stock pulling movement.

101. A pulling-over machine having, in combination, a gripper, and actuating mechanism tliei'efor including the jaw carrier 95, the actuating bar connected with the jaws to close and then uplift them, the

pneumatic piston 88, and the piston rod 90 Y arranged in the path of the jaw carrier.

102. A pulling-over machine having, in

combination. a gripper and actuating iiiechanisin therefor including two jaw carriers, a common actuating bar 'T5 connected With the jaws to close and then uplift them and Athe carriers, the pneumatic piston SS and the relatively adjustable stops 92 arranged further to close the two jaw carriers in pi'edetermined order.

103. )i pulling-over machine having, in combinatii'in, a gripper and actuating mechanism therefor including a treadle 36, the locking pawl 5l connected to the treadle, and the pivoted ratchet bar 52 cooperating with the paivl to lock the treadle and having the ratchet teeth in a groove and presenting a smooth face to the operators foot.

104. A pulling-over machine having` in combination. a gripper and actuatingmeehanisni therefor, including means to close the jaws, means to lift them to pull the upper, and means to close them further, said inachine having provision for retarding the pulling movement at the time of further closing the jaws.

105. In a pulling-over machine grippers to seize and stretch an upper over a last including grippers arranged at opposite sides of the ball of the last, and operating mechanism to raise the grippers constructed and arranged to move the gripper that is located on the outer side of the last to straighten up the upper on that side of the last prior to moving the gripper that is on the opposite side of the last for straightening up the upper on the inner side of the last.

10G. In a pulling-over machine grippers to seize and stretch an upper over a last including grippers arranged at opposite sides of the ball of the last, and actuating mechanisin therefor including the updraw levers from which the side grippers are lifted, the separate eccentric fulcriiins 50 for said levers and the treadles 86 tocontrol said eccentrics.

10T. In a pulling-over'machine grippers to seize and stretch an upper over a last including grippers arranged at opposite sides of the ball of the last, and actuating mechanisin therefor including treadle controlled means to cause the gripper on one side of the shoe to stretch the upper more than the gripper on the other side.

108. In a pulling-over machine grippers to seize and stretch an upper over a last including grippers arranged at opposite sides of the ball of the last, and automatic actuating mechanism for the grippers, said machine having provision under control of the operator while the machine is running for causing the gi'ippers on opposite sides of the ball to be moved through relatively' different distances b v said mechanism for pulliiig-over right and left slices.

100. A pulling-over machine having in combination, a plurality7 of grippers for seizing an upper, power driven mechanism for actuating the grippers to stretch the upper, said mechanism including means bv which the movement is )f'ieldingly transmitted to the grippers, a manual control connecting with said mechanism between the grippers and said `vielding means and by which the operatoncan govern the rate at which the power movement is transmitted from the vielding means to the grippers, and means for securing the grippers--at an)T point in their normal stroke against further movement. i

110. A pulling-over machine having in combination, a pluralityY of gripper-s for seizing an upper` power driven mechanism for actuating the grippers to stretch the upper7 said mechanism including means by. which the movement is vieldingly transmitted to the grippers, and levers through which the Amovement is so transmitted and which have handles for individual adjustment manually -after the power operation, and a manual oontrol common to a plurality ofisaid grippers by which the operator can govern the rate and extent of movement transmitted by the springs from the power mechanism to the grippers, and having provision for locking the grippers at any point in their updrawing movement against further stretching action on the upper.

111. In a pulling-over machine the combination with oppositely disposed. side grip-` pers and power mechanism for operating them, of yielding connections between theA grippers and said mechanism, a treadle and connections by which the movement of the grippers can be delayed while the power beco es stored'in the yielding connections to be'released at the will of the workman for continuing the movement of the grippers, and means for securing the grippers at any point in their normal -stroke against further movement. I

112. In a pulling over machine, mecha- Anism for pulling an upper including toe gripping means, an operating leverv from which the toe-gripping means is suspended, power operated mechanism for said lever, and an additional manually operated device havingconnection with the toe gripping means between said lever and the upper to move said means forwardly.

113. A pulling-over machine having, lin

combination, two grippeis arranged to eii.-

gage an upper at opposite sides of a last, said grippers being free for independent movements and having means by which said movements may be effected to adjust `the upper, automatic means for actuating said side grippers to pull the upper and hold it under tension, and mechanism including equalizing means operatively connected with bothV side grippers for causing movement of said grippers togethei to lrelax and then renew thetension on the upper.

' 114. A pulling-.over machine having, in combination, two grippers arranged to engage an upper at opposite sides of a last,

automatic means for actuating said 'side r l ""arranged to be controlled by the oilierator while the pulling movement is taking place to determine the extent to which the upper shall'be pulled.

116. In a pulling-'over machine the combination' with oppositely disposed side grippers, and power vmechanism and yielding' connections for operating them, of a single actuator and connections extending to the two side grippers and including equalizing means through which force is transmitted to the two side grippers, said actuator and its connections .beingarranged to be c ontroll'ed by the operator while the pulling movement is taking place and permitting him to govern the progress of the pulling movement and arrest it at any desired point within the stroke of the grippers normally effected bythe power mechanism.

117. -A pulling-over machine having, in

1 combination, two grippers arranged to engage an upper at opposite sides of a last, automatic means for operating said side Agrippers to pull the upper and hold it under tension, and means constructed and located for convenient actuation by one E the operators limbs for causing simultaneous movement of the grippers to increase the tension on the upper.

l118. A pulling-over machine having,- in combination, two grippers arranged to engage an upper at opposite sides ot a last; automatic means for operating said side gri'ppei's to pull the upper and then come to rest holding the upper under'-tension, said means includinglevers for the grippers, an

' actuator and connections between the levers and the actuator; a treadle and connections between the treadle and said levers for turther raising tlie grippers independently of the automatic operation of the machine.

119. A pulling-over machine having, in comliination, two grip'pers arranged to engage an upper at opposite sides of a last', and two adjacent foot treadles connected with said grippers and so constructed and located relatively that both treadles can be conveniently depressed by one of the oper-4 ators feet for effecting simultaneous movement of the opposite side grippers and that one treadle can he further depressed by the operators yfoot Jor effecting additional movement o't' the gripper connected therewith rindependently of the other treadle and gripper.

1,20. A l)idling-over machine havin inv combination, two grippers arranged to eugage a shoe at opposite sides of a last, and twoadjaccnt treadles each of which connected with one oi' said grippers and which are so arranged` that said two treadles and thertwo grippers connected thereto can be' moved together bythe same i'oot oi the operator and that additional independent movement can .be given to either gripper.

121. vA pulling-over machine having, inl