US1844856A

US1844856A - Pulling-over machine

Info

Publication number: US1844856A
Application number: US500558A
Authority: US
Inventors: Jorgensen Bernhardt
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1930-12-06
Filing date: 1930-12-06
Publication date: 1932-02-09
Anticipated expiration: 1949-02-09

Description

Feb. 9, 1932. E. JORGENSEN PULLING-OVER MACHINE 3 Sheeis-Sheet Filed Deo. 6, 1930 n IIIII Ill Illnllllillllll Feb. 9, 1932.

B. JORGENSEN PULLIANG-OVER MACHINE Filed Dec. 6, 1930 3 Sheets-Sheet 2 /NVE/v TUR gpm Feb. `9, 1932.

B. JORGENSEN PULLING- OVER MACHINE Filed DSC. 6, 1930 3 Sheets-Sheet 5 rla'tented Fel). 9, 1932 .UNiTED STATES PATENT oFFlcE BER-NHARDKL" JOBGENSEN, OF BEVERLY, MASSACHUSTTS, ASSIGNOR TO NITED SHOE MACHINERY GOREGRATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY PULLING-OVER IVIAGHINE This invention relates to machines for use in the manufacture of boots and sho-es for pulling uppers over lasts, and has more particular reference to the control'of the grip- J pers with which machines of that lind are provided for pulling the upper. The inventionis herein illustrated as applied to a pulling-over machine of a well-known type many of the characteristic features yof which are illustrated and described in detail in Letters "i the purpose of such adjustment usually being to position the tip line in proper angular relation to the last and at the proper distance from the toe end face of the last. An object of the present invention is to provide im proved means for thus controlling the side grippers, and especially to facilitate' such movements ofthe grippers as to produce eX-Y actly the results desired in operating on the uppermatedals. A further object is to insure that the grippers will remain in any positions to which they are moved by the controlling means. For the purposes in view the gripper-controlling mechanism herein shown com rises a pair of hand levers connected respectively to the opposite side grippers and both located atthe same side of the machine, so that the operator by the same hand may conveniently adjust the different grippers in dependently of each other while his 1 other hand is free to relax the force of the pull of the side grippers on the upper or to move the' toe gripper either to increase or to relax the strain on' the upper at the end of the toe. Novel means is also provided for connecting' thetwo hand levers together at the will of the operator, so that by use of one of them the opposite side grippers may be adjusted simultaneously, if desired. To insure that the grippers, after adjustment, will remain as long as required in any positions rto which they' are moved,.the machine herein shown is further provided with simple and effective friction brake mechanism arranged to control thegripper-adjusting devices. Included also in the illustrated organization is a novel construction and arrangement of means for returning the side grippers to their initial positions lengthwise of the last.

As a further'feature, the machine herein shown is provided with improved means for djusting the grip )ers for shoes of different sizes, objects being to render it easier than heretofore for the operator to etl'ect the adjustment and also to secure a high degree of precision in the adjustment.

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

In the drawings,

Fig. l is a view, partly in front elevation and partly in section, showing a portion of the novel means provided for adjusting the side grippers lengthwise of the last; K

Fig; 2 shows a portion of the same means inright-hand side elevation, with parts bro-V lren away;

Fig. 3 is a section on the line III-III of Fig. 2; n

Fig. Il is a View partly in plan and partly in section, illustrating how the side grippers are connected to their adjusting devices;

Fig. 5 is aperspective View of the means for adjusting the several grippers for shoes of different sizes;

Fig. 6 is a sectional'view of a portion of the mechanism shown in Fig. 5;

. Fig. 7 is a section on the line VII- VII of Fig. 6, and

Fig. 8 is an inverted plan view of a portion ofthe machine located near the toe gripper, with parts including the toe gripper shown in section.

In view of the disclosure in the previously mentioned Letters Patent and in others hereinafter referred to relating to various features of the well-known type of machine to which the invention is herein shown as applied, only such parts of the machine as it is necessary to refer to for an understanding of the novel features of the invention are herein illustrated and described in detail. It will be understood that the machine includes in its organization grippers for pulling the upper at the opposite sides of the forepart of the last and a gripper for pulling it at the toe end of the last. Each of the opposite side grippers comprises a gripper' bar 10 (Fig. 5) associated with a gripper casing l2 (Fig. 4) which carries the gripper jaws. Similarly, the toe gripper comprises a bar 14 and a casing 16 (Figs. 5 and 8). Details of the gripper construction are more fully shown and described in Letters Patent No. 1,030,522, granted June 25, 1912, upon an application of R. F. McFeely. It will be understood that the grippers are operated by power-driven means to pull the upper height- Wise of the last, and that the machine comes automatically to a stop with the upper' held under tension to permit inspection of the Work and to afford opportunity for any necessary adjustment of the upper on the last, for example, to position the tip line of the upper in proper angular relation to the last and at the proper distance from the toe end face of the last. Such adjustment of the upper to position the tip line in proper relation to the last is ell'ected mainly by movements of the side grippers lengthwise of the last, movement also being sometimes imparted to the toe gripper through its operating lever to increase or relax its strain on the upper and thus to assist in adjustment of the upper.

For the purpose of adjustment of the side grippers lengthwise of the last, each side gripper casing 12 is connected to a rack bar 18 which is slidingly movable in a bearing in the frame of the machine (Figs. 1 and 4), the connection between the gripper casing and the rack bar comprising a member 20 mounted in a guideway in the casing and relatively to which the gripper is movable heightwise of the last, and a member' 22 connected to the member 20 and movable in a guideway formed in the front end of the rack bar 18 to permit the necessary movements of the g i per in directions widthwise of the last. ne of the rack bars 18 is engaged by a pinion 24 fast on a shaft 2G mounted in bearings in the frame of the machine, and the other rack bar is engaged by a pinion 28 formed on a sleeve 30 which is mounted on the shaft 26. The rack bars are arranged respectively at opposite sides of the shaft 26, so that the side grippers are moved respectively in opposite directions lengthwise of the last by movements of the

pinions

24 and 28 in the same direction, and are moved in the same direction, either forwardly or rearwardly, by movements of the pinions in opposite directions respectively.

For purposes of this invention the shaft 26 and the sleeve 30 extend both to the same side of the machine, as illustrated the righthand side, and are provided respectively, at that side of the machine, with handles or hand levers 32 and 34 for turning them and thus for adjusting the different grippers. The hand lever 32 is mounted on a sleeve 36, and both the lever' and the sleeve are secured to the shaft 26 by a set screw 38 (Fig. 1) which extends through the sleeve and engages the shaft in a recess 40 (Fig. 3) formed therein. The hand lever 34 is mounted on an annular member 42 which is secured to the sleeve 30 by a set screw 44. The different hand levers are thus permanently connected respectively to the shaft 2G and the sleeve 30, s0 that each lever may be used independently of the other to impart either forward 0r rearward movement to the side gripper connected therewith. Since the two hand levers are located at the same side of the machine, the operator is enabled to manipulate either of them conveniently with the same hand while his other hand is free for other uses, such as to relax the force of the pull of the side grippers on the upper by the use of means rovided for that purpose in machines of the illustrated type, or to vary the strain with which the toe end of the upper is held by the toe gripper, and thus to assist in properly adjusting the upper.

There is also provided means whereby the two hand levers 32, 34 may be connected t0- gether for movements in unison, if desired, so that the opposite side grippers may be moved simultaneously, one forwardly and the other rearwardly, by use of the same lever. This means comprises a pin 46 slidingly movable in the annular member 42 and arranged to enter a recess 48 provided in an extension of the sleeve 36. The pin 46 is controlled by the hand lever 34 which for that purpose is pivotally mounted on a pin 50 in the member 42 to swing in directions at right angles to the plane of its gripper-adjusting movement. An arm of the lever 34 which ext-ends beyond the pin 50 carries a pin 52 projecting through a slot in the member 42 and lying in a recess formed in the pin 46. A spring-controlled plunger54 mounted in the lever 34 and bearing on the member 42 maintains the lever 34 normally in a position in which the pin 46 is Withdrawn from the recess 48, as illustrated in Fig. 3. If it is desired to connect both gripper-adjusting devices together, the operator swings the lever 34 to the left, thus forcing the pin 46 into the recess 48, and the lever 34 may then be used to turn both the shaft 26 and the sleeve 30 in the same direction, whereby movements in Opposite directions are imparted to the rack bars 18 and the grippers connected therewith. This may be done at the beginning of the gripper-adjustin operation, in case it is observed that one si e gripper' should be moved forwardly and the other rearwardly. Thereafter the two other and used independently :to effect additional adjustments of the opposite side grippers in any manner that may be necessary in order to position the tip line in exactly the right relation to the last.

The machine is further provided with simple and effective means associated with the above-described side-gripper-adjusting mechanism for maintaining the opposite side grippers in any positions towhich they are moved by the hand levers 32, 34. This means is in the nature of a friction brake, comprising

opposed brake surfaces

56 and 58 provided respectively on enlarged portions of the member andthe member 36, and a cooperating bralre shoe 6() arranged to engage these brake surfaces. It will be observed that the

opposed surfaces

56 and 58 are arranged in divergent relation and that the brake shoe 60 is correspondingly formed to act as a wedge between themand thus to apply very effective pressure on the two surfaces when it is moved inwardly toward the shaft 26. The brake shoe 60 is formed as a curved segment extending partly around the axis of the shaft 26 and is pivotally mounted on a pin 62 carried by a lever arm 64 (Fig. 2) which is fast on a rock shaft 66 mounted in bearings in a bracket member 68. This bracket member is secured to another member 70 which is fast on the headof the machine, 'bese Vtwo members serving in part `as supports for the shaft 26 and the sleeve 30. Also fast on the rock shaft 66 is a lever arm 72 connected to controlling means whereby the brake shoe 60 Ais forced into firm frictional engagement with the

brake surfaces

56 and 58 and is released therefrom at` different times in the cycle of operations of the machine. For the purpose of such control there is utilized, as herein illustrated, a lever 7 el., a portion only of which is shown in Fig. 2, this lever being a portion of thefmeans characteristic of machines of the illustrated type for controlling swinging movements of the grippers and the upper-fasteningv devices inwardly over the bottom ofthe shoe and their subsequent 'outward return movements, as fully illustratedrand described in the previously-mentioned Letters Patent No. 1,029,887. lt is sufficient for an understanding' of the operation of the parts herein 'shown to state that initially the lever 7 4 occupies aposition at the right-hand limitof its movement-as the parts are viewed in Fig. 2, and that it maintains this positon until after the machine has come to astop with thegrippers holding the upper under tension to` permit the adjustments hereinbefore described. 1When the machine is again started the lever 74 is moved toward the left' to cause the grippers and the upper-fastening devices to move inwardly over the bottomv of the shoe, and

after theupper has been released by the grippers and khas been fastened in pulled-over position,` a returnmovement of the lever toward'the right serves to move the grippers `and the fastening devices outwardly to their Y starting positions. To render the lever 74 effective to control the brake shoe 60, it is `lconnected to the lever arm 72 by a link comprising a rod 76 pivotally connected to the arm 72 and a tubular member 78 which encircles a portion of the rod and is provided at one end with a slot 80 into which projects a pin 82 carried by the lever7-l. rThreaded in the other end of the member 78 is a nipple 84 which is slidingly movable on the rod 76 and acts as an abutmentfor one end of a spring 86 conlined at its other end by a nut 88 on the rod 76. It will thus be seen that kwhen the lever 7 l is at theright-hand limit ofits movement, with the pin 82 at the outer end of the slot 8O as shown in F ig. '2, it acts through the spring 86 'to hold the brake shoe 60 pressed yieldingly inward against the brake surfaces 56and 58. Under these conditions the brake shoeis effective to maintain each ofthe opposite side grippers in any position to which it is moved by its adjusting lever32 or 34 at that time in the operation of the machine when the adjustment is effected. Vhen the'lever 74k is `moved toward the left in the second stage of the cycle of operations of the machine, it serves to relax the V'pressure of thc'brake shoe 60 on the co-operating brake surfaces, and finally by positive engagement of a portion of the member 78 with the end ofthe rod 76 to retract the brake shoe from its operative position, the pin 82 then koccupying a position at the left-hand end of the slot 80. This permits the side grippers, afterthey have released the upper, to be returnedV to their starting positions lengthwise of the last by the action of means hereinafter described. Before the machine completes its cycle, the return movement of the lever 74 toward the right serves to apply the brake shoe 60 again in eifective'engagement with the co-operating brake surfaces preparatory k,to the operation of the machine upon the next shoe.

For returningy the opposite side grippers to their starting positions lengthwise of the last the machine is provided with centralizing means which acts onthe shaft 26 and the sleeve 30 at the same side of the-machine as the hand levers 82 and 84., This means comprises rods 90- and 92 pivotally'connected respectively to ears formed on the sleeve member 36 and the annular'member 42, the two rods projecting through openings in vthe bracket 68 and each rod having thereon two

springs

94 and 96 located respectively at opposite ksides `of that portion ofthe bracket through which the rod extends. The spring 94 bears `at one end upon an enlargement .of the rod on which it is mounted, and the spring 96 is confined at its outer end by nuts 98 on the rod. It will thus be seen that the bracket 68 and the

springs

94 and 96 serve to determine the normal position of each of the opposite side grippers with respect to movements lengthwise of the last and to return each gripper to that position when permitted by the brake shoe 60, the springs being so arranged as to permit either forward or rearward movement of each gripper in the gripperadjusting operation.

The means hcreinbefore referred to as under control of the lever 7 4 for effecting or controlling inward and outward swinging movements of the several grippers in the course of the operation of the machine includes a longitudinally movable bar 100 (Fig. 5) which carries a roll 102 engaging the rear face of the toe-gripper bar 14 and also carries a wedge block 104 controlling the opposite side gripper bars 10. The wedge block 104 is connected to the bar 100 by mechanism through the use of which it may be adjusted relatively to the bar to vary the normal distance between the opposite side grippers for shoes of different widths. This mechanism is shown in Fig. 5, but need not be described herein, since it is fully described in Letters Patent No. 1,430,559, granted upon an earlier application of mine on October 3, 1922. It will be understood that the wedge block moves with the bar 100 in the operation of the machine. and that movement of these parts in one direction permits the toe and side grippers to be swung inwardly over the shoe bottom by the overdraw springs and by the inwardly-moving upper-fastening mechanisms in the manner characteristic of machines of the illustrated type. The overdraw springs associated with the toe gripper are shown at 106 in Fig. 8, and it will be understood that similar springs are associated with each of the side grippers. lVhen the bar 100 and the wedge block 104 are moved in the opposite direction, the toe and side grippers are swung outwardly a gain to their starting positions.

The means whereby the lever 74 is rendered effective to control the movements of the bar 100 and .its wedge block 104 is fully disclosed in Letters Patent No. 1,029,387. For an understanding of the present invention it is suflicient to state that such control is effected by engagement with a lug 108 formed on a rack bar 110 which is movable in guideways in the bar 100, this rack bar engaging a pinion 112 fast on a rock shaft 114. The shaft 114 is normally connected, as hereinafter described, to another pinion 116 in engagement with rack teeth 118 formed on a portion of the bar 100, so that the bar 100 is moved by the bar 110, the connections` however, being such as to permit manual turning movement of the pinion 116 independently to vary the normal position of the i bnr 100 and its wedge block 104 and thus to effect a simultaneous adjustment of the toe and side grippers for shoes of different sizes. For purposes of this invention, these connections are so constructed as to permit the adjustment to be effected with greater facility and precision than heretofore. By reference to Fig. 6 it will be seen that the )inion 116 is so mounted as to ermit it to turned about the shaft 114, ut is held against lengthwise movement by a pin 118 which is mounted in the pinion and lies in an annular groove 120 formed in the shaft. Mounted also on the shaft 114 for both rectilinear movement lengthwise of the shaft and for turning movement thereon is a sleeve 122 which is slidingly connected with the pinion 116 by fingers 124 projecting from the pinion into recesses 126 in the sleeve. Mounted in the shaft 114 is a pin 128 which projects into a spiral slot 130 in the sleeve 122, so that any movement of the sleeve lengthwise of the shaft is necessarily' accompanied by a turning movement of the sleeve, whereby the pinion 116 is also turned. For moving the sleeve 122 lengthwise of the shaft there is provided a rotatable adjusting member 132 having a screw-thread connection with the sleeve. Secured to the member 132 is a handle 134 for turning it, this handle encircling the axis of the shaft 114. The adjusting member 132 and its handle 134 are held against movement lengthwise of the shaft by means including a sleeve 136 which is mounted on a reduced portion of the shaft and is fastened to the shaft by a key 138. At the outer end of the sleeve 136 is a ball bearing including a washer 140 which confines the handle 134 against movement in one direction lengthwise of the shaft 114, the handle being held from movement in the opposite direction by a shoulder on the sleeve 136. It will thus be seen that when the member 132 is turned by its handle 134, the sleeve 122 is moved along the shaft 114 by its screw-thread connection with member 132, and in this movement the pin and

slotconnection

128, 130 between the sleeve and the shaft causes the sleeve to turn and thus to turn the pinion 116 to effect the required adjusting movement of the bar 100. It will be evident that the sleeve 122 is turned at a much slower speed than the adjusting member 132, so that the adjustment may be very easily effected, this arrangement also facilitating a very precise adjustment of the grippers. On the lower face of a portion of the head of the machine, as illustrated in Fig. 8, there is provided a scale 142 which is located adjacent to the toe gripper and is of assistance in determining when the grippers are properly adjusted for shoes of different i sizes.

For holding the parts above described in adjusted relation to one another with the pinion 116 in fixed relation to the pinion 112,

there is mounted in the member 132 a. pin 144 I the inner end of which is provided with a tooth 146 arranged to enter one or another of a series of recesses 148 provided in the pev 132 when it is desired to effect an adjustment ot the grippers, there is provided a finger 152 which is pivotally mounted on a pin 154 in the handle 134 and projects outwardlyV through an opening in the handle, the finger having at its inner end a projection which extends into a recessin one side ot the pin. It will be evident that the finger 152 thus arranged to be forcedinwardly toward the axis ot the handle 134 by pressure ot the operators hand thereon affords -conv venient andeasily-operated means for controlling the looking pin 144.

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

1. In a pulling-over machine, the combination with grippers for pulling an uppery respectively at the opposite sides of alast, of means comprisi-nga pair of handles for imparting respectively to said opposite sidev grippers `movements lengthwise of the last, said handles being located aty the same side of the machine to enable the operator conveniently to manipulate eitherot' them withthe same hand. l

2. In a pulling-over' machine, the combi-v nation with grippers for pulling an upper respectively at the opposite sides of a last, of means comprising two handles permanently connected respectively tov said opposite side grippers Jfor imparting to said grippersm'ove-` ments forwardly cr rearwardly lengthwise 0f' the last each independently of the other, said handles being located at the same side of the machine to enable the operator conveniently to manipulate either of them with the same hand.v j

3. In a pulling-over machine, the combination with4 grippers for pulling an upper respectively atthe opposite sides of a. last,

of devices connected respectively to said opj y to connect said members together for moveposite side grippers and mountedV for turning movements to adjust said grippers lengthwise of the last, and a pair oli' hand levers located both at the saine side of the machine for iinparting turning movements respectively to said different devices. j n j,

4. In a pulling-over machine, the combination with grippers for pulling` an upper respectively at the opposite sides oa last,I

of a shaft anda sleeve arranged in coaxial relation and connected respectively to said opposite side grippers for adjusting` them lengthwise ot' the last, said shaft and sleeve extending both to theV same side lof the inanation with grippers for pulling an upper chine, and a pair of handles located at that side of the machine for turning said shaft and sleeve respectively. i

. 5. In a pulling-over machine, the combination with' grippers forpulling an upper to permit them to bemoved independently of each other.

6. In a pnlling-overmachine, the combivnation with grippers for pulling ran upper respectively at the opposite sides of a last, of members connected respectively to said opposite side grippers and mounted for turning movements to adj ust said grippers lengthwise of the last, a pair of hand levers con-i nected respectively to said different members for turning them, and mechanism Vfor either connecting said members togetherV to turn' in unison or for disconnecting them to permit them to be turned by the hand levers independently of each other. f

7. In a pulling-over machine,.the combination with grippeis for pullingk an`- upper.v

respectively at the opposite/sides offa last, of members connected respectively to said opposite side grippers and mounted'for turning movements to adj ust ysaid grippers lengthwise of the last, handles connected respectively to said diierent members `for turningthem, and a device ymovable by one of said handles either into or out of position to connect the two members together.

v8.- In a pulling-over machine, the combi- I nation with grippers for pulling an upper respectively at the opposite sides of a last.

ot members connected respectively to said opposite side grippers and mounted for turning movements to adj ust said grippers lengthwise of the last, hand levers connected respectively to said different members for turning f them, one of said hand levers being mounted for swinging movementsv in directions transverse to the plane of its gripper-adjusting movement, and adevice arranged to be Operated by such swinging movements of the lever side grippers ymovements lengthwise ofthe l last, and mechanism for either connecting said handles together to cause one to be moved by the other or for disconnecting themv to permit each to be moved independently.

10. Ina pulling-over machine, the combirespectively at the opposite sides of a last, of a pair of rotatable members arranged to act. by turning movements in the same direction t impart to the different side grippers movements respectively in opposite direc- 11 bers from each other and thus permit `them to be operated independently by the different handles.

11. In a pulling-over machine, the combination with grippers for pulling an upper 2m respectively at the opposite sides of a last,

of members connected respectively to said oppoafte side grippers and mounted for turning mvements to adjust said grippers lelgtbwise of the last while the upper is held under tension, said members extending both tothe same side of the machine, and means arranged to act frictionally at that side of the machine to maintain said members in any positions to which they are moved in adjusting the grippers.

12 In n pulling-over machine, the combination with grippers for pulling an upper respectively at the opposite sides of a last. of members connected respectively to said opposite side grippers and mounted for turning movements to adjust said grippers lengthwise of the last while the upper is held under tension, handles located both at the same side of the machine for imparting turning movements respectively.' to the different members, and friction brake mechanism located at the same side of the machine for maintaining the members in an;v positions to which they are moved in adjusting the grippers. c

13. In a pulling-over machine. the combination with grippe-rs for pulling an upper respectively at the opposite sides of a last. 0f members connected respectively to said opposite side grippers and mounted for turning movements to adjust said grippcrs lengthwise of the-lastwhile the upper is held under'tension, manually operated means for turning said members, and a brake shoe arranged to engage both members frictionally to maintain them in any positions to which they are moved in adjusting the grippers.

14. In a pulling-over machine, the combi. nation with grippers for pulling an upper respectively at'the opposite sides of a inst, of members connected respectively to said opposits side grippers and mounted for turning movements to adjustsaid gripper-s lengthwise of the last While the upper is held under tension. said members having brake surfaces facing each other at one side of the machine, and a brake shoe arranged to engage said oppite brake surfaces to maintain the members in any positions to which they are moved in adjusting the grip- 15. In a pulling-over machine, the combination with grippers for pulling an upper respectively at the opposite sides of a last, of members connected respectively to said opposite side grippers and mounted for turning movements to adjust said grippers lengthwise of the last while the upper is held under tension, said members having divergent brake surfaces facing each other, and a brake shoe constructed and arranged to act as a wedge between said surfaces to maintain the members in any positions to which they are moved in adjusting the grippers.

16. In a pulling-over machine, the combination with grippers for pulling an upper respectively at the opposite sides of a last, of members connected respectively to said opposite side grippers and mounted for turning movements to adjust said grippers lengthwise of the last while the upper is held under tension, manually operated means for Y turning said members, ay brake shoe arranged to act on both members frictionally to maintain them in any positions to which they are moved in adjusting the grippers, a lever carrying said brake shoe, and automatic means for operating said lever to render the brake shoe eifective and thereafter to lender it ineffective a-nd thus to permit the return of the grippers to their starting positions.

17. In a pulling-over machine, pullingover means including a gripper for pulling an upper at the side of the last, a. member connected to said gripper and mounted for turning movement to adjust the gripper lengthwise of the last while the upper is held under tension, manually operated means for turning said member, a brake shoe arranged to act frictionally to maintain said member in any position to which it is moved in adjusting the gripper, a lever carrying said bra-ke shoe. and automatic means for operating said lever to render the brake shoe effective and thereafter to render it ineffective and thus to ermit the return of the gripper to its starting position.

18. In a pulling-over machine. the combination with grippers for pulling an upper respectively at the opposite sides of a last, of members connected respectively to said opposite side grippers and mounted for turning movements to adjust said grippers lengthwise of the last while the upper is held under tension. manually operated means for turning said members, and spring means located at one side of the machine for controllinqv both said members to return the opposite side grippers to their initial positions lengthwise of the last.

19. In a pulling-over machine, the combination with grippers for pulling an upper respectively at the opposite sides of a last, of members connected respectively to said opposite side grippers and mounted for turning movements to adjust said grippers lengthwise ot the last while the upper is held under tension, handles located at one side of the machin-e for imparting turning movements respectively to said different members independently of each other, and separate springs located also at that side of the machine for operating said members to return the opposite side grippers to their initial positions lengthwise of the last.

20. In a pulling-over machine, the combination with grippers for pulling an upper respectively at the opposite sides ot a last, of members connected respectively to said opposite side grippers and mounted tor turning movements to adjust said grippers lengthwise of the last while the upper is held under tension, manually operated means for turning each of said members in either directionv independently of the other member, a rod connected to each of said members, a pair of springs on each rod, and an abutment arranged to cooperate with each pair of springs to determine a normal position of the gripper associated therewith while permitting it to be moved in either direction from that position againstthe resistance of one or the other of the springs.

2l. In a pulling-over machine, thecombination with a plurality of grippers for pulling an upper over a last, of means for adjustably varying the positions of said grippers Vfor shoes for different sizes, said means comprising a member mounted at one side ot the machine tor turning movement about an axis extending laterally of the machine and having a handle encircling its axis, and a device for locking said member in adjusted position, said locking device including a part located adjacent to the handle and movable in a direction transverse to said axis by pressure ot the operaters hand thereon to release the member and permit it to be turned.

In a pulling-over machine, the combin ati on with a plurality of grippers for pulling an upper over a last`v of means for adjusta ly varying the positions ot said grippers for shoes of diii'erent sizes, said means comprising a member mounted for turning movement and having a handle encircling its axis, and a device tor lockingv said member in at justed position, said locking device including a part located adjacent to said handle and arranged to be pressed inwardly toward said axis by the operators hand to release the member and permit it to be turned.

23. In a pulling-over machine, the conibination with a plurality ot grippers for pulling upper over a last, ot means for adjustably varying the positions of said circling its axis, a. pin slidingly movable in f said memberinto or out of position toflock the member against turning movement, and a pivoted linger connected to said pin and vprojecting through. an opening in said handle into position to be pressed inwardly by the opeiators hand to release the member and permit it to be turned.

24. In a. pulling-over machine, the combination with a plurality of grippers tor pulling an upper over a last, of means Jfor adjustably varying the lpositions ot said grippers for shoes ot different sizes, said means comprising an adjusting member mounted :torv turning movement, another member movable in a rectilinear path in response to the turning of said usting member, and means arranged to act in response to the rectilinear movementof said other member to turn it at aslower speed than the adjusting member.

25. In a pulling-over machine, the comb-ination with a. plurality ot grippers for pulling an upper overy a last, ot means for adjustably varying the positions of said grippers for shoes of diderent sizes, said means comprising an adjusting member mounted for turning movement, another member mounted to turn about the same axis as the adjusting member and movable also lengthwise ot said axis, a screw-thread connection between said members for moving said other mem er lengthwise of its axis by the turning of the adjusting member, and means arranged to act in response to the lengthwise movement of said other member to turn it at a slower speed than the adjusting member.

26. In a pulling-over machine, the combination with a plurality ot grippers for pulling an upper over al last, of means for adjustably varying the positionsy of said grippers for shoes of different sizes, said means comprising an adjusting member mounted for turningr movement, another member mounted tor both rectilinear movement and turning movement, a screw-thread connectionrtor imparting to said other member rectilinear movement in response to the turning movement of the adjusting member, and means having a pin and slot connection with said other member for turning it at a slower speed than the adjusting member in response to its rectilinear movement.

27. In a pulling-over machine, the combination with a plurality of grippers for pulling an upper over a. last, of rmeans for adjustably varying the positions of said grippers for shoes of different sizes, said means comprising a pinion, a shaft supporting said pinion, a sleeve movable lengthwise of said shaft and having a. sliding connection with the pinion, a rotatable member threaded on said sleeve for moving the sleeve lengthwise by the turning of said member, the sleeve having n spiral slot therein, and a pin project-ing from the shaft into said slot for turning the sieeve in response to its lengthwise movement.

In testimony whereof I have signed my name to this specification.

BERNHARDT J ORGENSEN.