US1288441A

US1288441A - Lasting-machine.

Info

Publication number: US1288441A
Application number: US82254214A
Authority: US
Inventors: Charles F Pym
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1914-03-04
Filing date: 1914-03-04
Publication date: 1918-12-17
Anticipated expiration: 1935-12-17

Description

C. F. PYM.

LASTING MACHINE.

APPLICATION FILED MAR. 4, 1914.

Patented Dec. 17, 1918.

3 SHEETSSHEET 1- C. F. 'PYM.

LASTING MACHINE. APPLICATION FILED mm. 4. 1914.

Patented Dec. 17 1918.

' 3'SHEETS- SHEET 2 c.- F. P YM.

LAS'TING MACHINE.

APPLICATION HLED MAR. 4. I914.

1,288,41 Patented Dec. 17, 1918.

3 SHEETS-SHEET 3- ray? //7 m I 58 n1: "GEES mu: 1. mu'muma. WASHIIIGIDI.

LQSSJAI. I j

CHARLES E. rYM, F nssEx'oNramo, CA ADA, ASSIGNOR, BY MESNE ASSIGNMENTS,

. T0 UNITED SHOE MacEINEEY conroRA'rIoN, 0E PATERSON, NEW JERSEY, .a con- PORATION OF NEW JERSEY.

To all wit 0m iii ma z (307L067'7'l Be it known that I, CHARLES F. PYM, a subject of the King of Great Britain." and resident of Essex, in the county of Essex,

Ontario, Dommlon of Canada, have invented an Improvement in Lasting-Machines, of

' which the following description, in connection with the accompanying drawings, a

specification, like letters on the drawings 10.

representing like parts.

My present inventlon relates to lasting machines, and its'object is to improve and I perfectithe lasting operation on boots or shoes. In working the upper leather overthe sole or insole of'a boot or shoe, particuabout the heel and toe.

larly at the toe and heel portion, ithas always been very difficult to draw'and stretch the upper leather so that all the wrinkles I will be smoothed 'out and the leather itself stretched evenly, smoothly and satisfactorily always been present, either in lasting by I hand or by any machine, and it has been frequently necessary to re-last shoes around the toe repeatedly to obtain proper results. A further difficulty with both the hand lasting and machine lasting hasbeen-that when pin-- cers were employed the leather was apt to be a torn and unduly stretched, while when wiper plates were utilized, the leatherwas not always worked over into lasted position to an extent suflicient to remove all the stretch,

. thus loose places, wrinkles, etc., were left.

smoothed, and stretched in a manner to eliminate all wrinkles and to take 'the stretch fully out of it. I

a pair of such side wipers, to pull, strain.

prefer to utilize and wipe the upper leather toward the point at which the main lasting mechanism is pulling one wiper being arranged at either side of said main mechanism. Furthermore such side wipers may actually tend to fold or plait the upper, asit were, toward the point of pulling. By actuating these side wiping J Specification bf Letters mm. Application filed March 4, 1914. Serial No. 822,542.

This difficulty has.

the lasting tacks.

LAs'rING-MAoHINE.

Patented Dec. 17, 1918 mechanisms repeatedly, I am enabled to work or progressively stretch the leather with but relatively slight pulling strain, so that the most delicate and highly finished patent leather and upper leather will not be damaged.

I prefer to embody the present invention in a lasting machine of the general type shown in my copending application Serial No. 790.003 filed Sept. 16, 1913, wherein a novel form of means to secure a wiping-grip on the upper is shown. It will be understood, however, that the side wiping mechanism above explained, may be advantageously employed in any lasting machine which acts to pull the upper leather at substantially a single point at a time, while said upper is being worked over the edge of the last. Furthermore I prefer to embody the ,present invention in a machine where the lasting tacks may be driven at will, permitting a plurality of side wiping, stretching and progressive leather working actions to occur until the stretch of the leather is fully taken out, and then to drive The effect of these side wiping mechanisms is to work all the full ness or surplus leather into the best position to be acted on by the main lasting device, so

that when the lasting ,tack is driven, the leather will have been stretched to its utmost. Also this 'side wiping action and working of the leather may be performed repeatedly before the lasting tack is driven, as these tacks are put in at the will of the operator. Also I may vary the speed, tension and'wiping action of the side wipers, as may be best suited for the particular work in hand. heavy upper leather on mens work for example, requiring more strain and tension than light kid for womens work. My side wipers. particularly in a lasting machine of the type of mv said copending application. enable me to last a large variety of stock with equal facility and without any danger of tearing the same, not only light or heavy upper leathers, but canvas or cloth for shoes may also be lasted, satisfactorily. In a lasting machine using a wiper I prefer to arrange the side smoothing or wiping mechanisms to be actuated by the wiper bar itself and simultaneously therewith, serving bar and the side wiping mechanisms; and

. thereon. The frame 3 is formed with an Fig. 1;

'ing application;

Figs. 2 and 3 beingv detailed views of-the work rest, the latter figure on line 3-3 of Fig. 4 is an enlarged view, partly in cross section, of the means for operating a part of the gripper mechanism;

Fig. 5 being an enlarged side view of the ratchet therefor;

Fig. 6 is a planview of the main wiper Fig. 7 is a perspective view of the front of the machine.

A lasting -machine of the general type.

ingat the rightf viewing Fig. 1, standards so 4 having suitab e journal bearingsfor the shafts 5 and6 and the respective cam wheels overhanging head 7 terminating in a vertically arranged boss 8 adapted to receive the vertically rejciprocable spindle 9 of the tack driving mechanism. A side bracket 10 approximately at right angles to the frame3 is also; provided to support the tackhopper and raceway 121. Formed on spring tension to actuate the lever 13 in its downward or driving action, and therefore form a hub 16 on the pivot pin 12, and coil the spring 17 about said hub, with the outer end of the spring engaging the lever 13, the other end 18 of said spring being held by a pin 19 on the arm 20, which arm is pivoted on the'pin 12, and may be secured to the hub 16 in variety of adjustable positions by a bolt 21 passing through the arm and engaging with holes 22 in said hub 16. This construction enables an adjustable tension to be secured on the spring 17. The arrangement of cams on the shaft 6 is generally similar to that of my copending application, the roll 15 being actuated by a cam to oscillate the lever 13, lift the tack driving spindle 9, and whenthe cam-23 releases 6110101115, the spring 17 acts to drive the tack. A pulle 24 is carried by theshaft 6 and said sha t is preferably arranged with a clutch controlling the cam 23 and permitting but a single revolution of the cam and, therefore, onetack driving operation to be carried out oneachdepression of a foot treadle by "the operator, in a usual manner. I

At the side of "the frame 3 is a plate 25 acting as a lateral guide for a hori zontally reciprocating wiper bar 26, which bar is given-a to and fro reciprocation by an eccentric 27 on the shaft 5 and an encircling strap 28, the latter having a socket '29 to which the bar 26 is connected at 30'. The forward portion (if the bar 26 is pivoted to a. supporting link .31, :at 32', the lower end ofsaid link being pivotedat .33to a forwardly extending bracket .34 of the-frame Preferably I emp'loyduplicate links 31; the pivot pin 32 assing through asuitah'lebearing in the bar 26 and through both of the links which are similarly mounted :on the lower pin 33. To the forward end of the wiper bar 26 is attached :by a bolt 34, a wiper 35 having its ends forked at 36 and 37 110 straddle the pincer and presseri3-8 and tack nozzle 39, this construction being generally "similar to that of the machine in myfisai'd copending application. The to and fro reciprocation of the wiper bar26 caused-by the action of the eccentric rocks the bar 26 on-the link 31 and manipulates the wiper prongs 36. and 37 to engage and Wipe, rub, push, and smooth the up er leather offa shoe over the edge of a last, so that a tack may be driven through the nozzle '39 to secure the leather so lasted and held by the presser 38 in its extreme worked over position. To embody my present invention of side wiping mechanisms which will aid in working over the leather and will 'actto strain, stretch and work the'leather from either side of the wiper prongs toward the point at which the tack may be or is to be driven, I attach to the forward end, of the wiper bar 26 a cross bar 40 by a bolt or screw 41, said cross bar having each end slotted, as shown in Fig. 1, to receivethe side wiping bars 42 and 43 which are pivotally held by bolts 44 and 45, respectively, see Fig. 6. These bars are provided with cam slots 46 and 47 respectively, said cam slots being adapted to receive pins 48 and 49, each carried by a plate 50, one of which is secured to each side of the frame 3 by screws 51. The inclination of the cam slots 46 and 47 is at an angle suflicient to throw the outer ends of the

side wipers

42 and 43 inwardly, when the bar 26 moves forwardly, as shown in dotted lines in Fig. 6, so that they will push and strain the leather engaged thereby u nearly to the point where the lasting tac is driven. The result is that when the lasting tack is driven it will hold leather in a- "la'sited' position, which leather has been Zthe lasting device, whether such device is grippers, wipers, or my lmproved form of wiper-gripper, is substantially perpendicular to the edge portion of the last being presented. Straining the leather in this direction, especially at the toe necessarily leaves more or less looseness at either side of the working point, where the curvature of the last permits this looseness to accumulate; but by means of my side wiping devices, this looseness is stretched and strained out of the stock and 'direitlyup to the point at which the lasting tack is driven. I prefer to form the forward wiping ends of the wiper prongs 36 and 37 with beveled faces 52 see Fig. 1) the extreme end portions of each of the wiper prongs bemg downturned to form these beveled faces 52 and to provide recesses behind said downturned ends which the ends of the side wiper bars 42, 43 may enteras they approach each other, the wiper "prongs being then advanced over the shoe bottom to permit this. fWhile the ends of t-he wipers l3 are in the recessesthey form continuations of the lower wiping faces of the wiper prongs 36, 37.

' "In embodying my present invention in a type of lasting machine employing wipergrippers, as herein shown, I prefer to mount on the boss 8 of the fixed frame portion of the machine, a block having a pair {of vertical grooves 55 and 56 formed at either side of said block in position to re-.

ceive arms

57 and 58, carrying

gripping devices

59 and 60 respectively, which are adapted to cooperate with the wiping prongs 3G and 37 respectively to constitute the wiping-grippers of the machine, the member 59 and wiper prong 37, for example, are adapted to cooperate in gripping the upper leather engaged between them and last the same. I prefer to pivot the arms '57 and 53 at the upper portion of the block 1n the respectivegrooves therefor, approximately as shown at 61 in Fig.1. The

' lower part of each

arm

57 and 58 is provided with an offset 62 slotted to receive the shank of one of the

gripper members

59, 60 which is held in ad usted position by the aid of a set screw 63 bearing thereon, as

7 clearly shown in Fig. 4C. These arms 57 and with the respective wiper prongs adapted to 58 are each held in position to cooperate engage therewith by springs 64 wrapped the pivot pm 451 at.

aid the euter'l end each arm,'as a fulcrum and with the upper end of said spring arranged for adjustable tension by engagement with a screw 65 that is threaded through the flange of a bracket 66 held to the block 54. by a bolt 67 (see Fig. 1). In theoperation of the machine the reciprocation of the wiper bar 26 acts to force or wipe the leather of the shoe over the edge-0f the last until the underside of the upper is engaged by one of the cooperating

gripper members

59 or 60, when the con tinued wiping movement ofthe wiper bar carries the cooperating gripper with it, increasing the gripping strain on the upper leather through the force of the spring 64 acting on the gripper member until the completion of the wiping action and the retraction of the wiper bar 26. in lasting shoes it is desirable to work over the upper in advance of the tacking mechanism, and

therefore in working down one side of a shoe, the gripper 60 is employed, to cooperate with its respective wiper prong 36 and pull over the upper leather just in advance of the tack driving nozzle, 39, while in lasting the other side of the toe the gripper 60 is preferably thrown out and the gripper 59 is utilized in cooperating with its wiper prong 37 to pull over the upper just in advance of the tack nozzle 39. These

grippers

59 and 60 may be adapted to be thrown out of or into operative position by any suitable means. In the present machine, however, I prefer to employ automatic mechanism which will throw out a gripperat the end of a predetermined number of tacking actions, while the wiping movements continue. This tack driving mechanism is always under the control of a treadle, and may be thrown into operation after the completion of the desired number of wiping actions, the automatic throwing out of the gripper taking place after a predetermined number of tacks have been driven. T have found that it is feasible to permit the wiper gripping operations to be continuously performed, especially when acting in conjunction with my side wiper mechanism, when lasting one side of the toe of a shoe, until a suitable number of tacks have been driven and then to throw out the gripper which has been working on that side of the shoe,

and throw in the cooperating gripper for the other side to work down the toe of the shoe on the opposite side thereof in a similar manner.

Accordingly, I have employed in the present machine automatic mechanism for accomplishing this, result. The mechanism for automatically affecting; one gripper, 60, for example, is identical with that affecting the other gripper, 59., and the detailed description of one applies to the other also.

On the side of the frame 7 adjacent the gripper 6G horizontal bat-r68 pivoted att69 to the arm 58, which arm carries the end engaged by the bar 70, a cam7 1. The axlej73 is extended suliiciently on the side ofthelmachine illustrated in Fig. 1, to constitute a'hub 75 (Fig. 4:) having a ratchet wheel 76 vkeyed thereto or formed integrally therewith. The hub portion 75 carries a sleeve 77 on which sleeve a cam 78, similar to the foam 74; is positioned, and a ratchet wheel 79 similar to the ratchet 76 is secured to said cam by a screw 80. Also mounted n the sleeve 77 is a lever 81 carrying a pawl 82 pivoted to said lever at 83 and adapted to be pressed by a spring 84 into engagement with the teeth on the ratchet 79. The outer end of the lever 81 is forked to receive a rod 85 connected with a foottreadle (not shown). A similar lever 86 is mounted on the hub 75 outside the ratchet 76, and a pawl 87 having a spring .89to force the .end of said pawl into engagement with the" teeth of the ratchet 76. is provided, a rod- 90 being pivoted to this lever at 91, and connected with another foot treadle, not shown. The rod 90 carries a collar 92 and slides through a guide plate 93, a second collar 94 being affixed to the rod underneath the guide plate 93 and an eXpansible spring 95 is coiled about the rod 90 between the guide plate 93 and the upper collar 92, as'shown in Fig. 1; a similar arrangement is also provided for the rod 85, so that these rods are normally held in an upward position, or are returned to upward position upon either being depressed by its foot treadle, to the limit permitted by the lower collar 94: on the rod 90, as will be readily understood. Mounted on the hub 75 is a lever 96 carrying on each side a pawl 97, each pawl having a spring 98 adapted to hold its pawl normally in a predetermined position with relation to a stop 99, this lever being arranged to swing freely on the hub 75 and one of said pawls 97 being arranged to engage the ratchet 76 and the other the ratchet 79, the lever 96 being mounted between these two ratchet wheels as clearly shown in Fig. 4. The lever 96 is oscillated bv a link 100 pivoted at 101 to a reciprocating; bar 102, the pivot 101 engaging a $l0t in the bar 107 to prevent vertical movement of the pivot. The bar 102 receives its' reciprocation from an eccentric on the cam shaft 6, being actuated whenever a tack is driven. Each of the ratchet wheels 76,. 79 is provided with series. of different teeth, one series of teeth being depre d o shor ened (see Fig. 5)

: as at 103 below the limit of engagement of the pawl 97 on the lever 96, the stop 99 hold ing said pawl above the series of shorter teeth. The series of longer teeth indicated at 104 is adapted to be engaged by said pawl until interrupted at the series of .shorter teeth 103. The pawls 82 and 87 however on the levers attached to the foot treadles. will swing-freely sufficiently to engage the series of shorter teeth 103.. The @pawls '97 therefore,.will automatically act to rotate both ratchet wheels 76 and 79 until they reach the shorter "teeth 103 in each when said ratchet wheels will stop. Either foot treadle, however, when depressed, will cause the respective ratchet wheel actuated therecam rolls 105 and 106 in position "to be engaged respectively by the cams '78 and 74,

and the said cams are angularly positioned relatively with their respective ratchet ,wheelsso that the

rods

68 and 70 are thrown forwardly and-the grippers 59 andv 60 are thrown out of operative position when a pawl 97 has reached a series of short teeth 103 in either ratchet. Thus when the pawls 97 cease to act, the grippers 59"and 60 are thrown and held out of operative position at the end of as many tack driving actions as there are teeth in one of the series 104 of long teeth in the ratchet wheels 76, 79. The tracker can always be used independently of the wiper gripping movements whenever the operator desires and on the completion of apredetermined number of tacking operations (shown as 10) the grip per (59 or 60) then in use will be thrown out of operation. The operator is then able to employ the continuously operating wipers alone in connection with the tacking mechanism, operable at will.

A presser and pincer 38 is carried on a reciprocatingbar 107 which slides between the frame 3 and one of the plates 50 at the front of the machine and beneath a plate 108 at the rear of the frame 3, being actuated by a bell crank lever pivoted at 109, having one arm 110 engaging a stud 111 on the bar 107, and the other arm 112 carrying a cam roll 113 in position to be rocked by a cam on the shaft 6. A spring 114. holds the roll 113 in engagement with the cam on the shaft 6. The reciprocating presser 38 assists in holding the leather in position is about to be driven.

I also provide a pincer jaw 115 adjustably mounted on one arm 116 of a rock shaft 150 mounted in a holder 117 formed as a branch or part of the bar 107. The other arm 152 of the rock shaft 150 carries a block 153 pivoted there to, through which extends loosely a rod 154. The rod 154 is connected at its rear end to the pivot 101 for actuation by the bar 102 and carries two adjustable collars 155, 156. On the rod 154 between the collar 156 and the block 153 is a spring 157. When the rod 154 is reciprocated the collar 155 acts positively to move the pincer jaw 115 outwardly away from the pincer member 38 and the collar 1 56 acts yieldingly through the spring 157 to move the jaw 115 in wardly coincidently with the forward movement of the pincer member and presser 38, so that prior to each tack driving operation the stock already worked over by the wiper prongs 36, 37, with or without the cooperating action of one or both of the

gripper jaws

59, 60, will be seized between the advancing presser 38 and the jaw 115 and will be further pulled and wiped upon the sole in position to receive a tack then about t be driven. A work rest or guide 118 is adjustably secured in a block 119 carried by a bracket 120, which bracket in turn is mounted on the raceway 121 attached to the part 10 of the frame carrying the tack hopper 122, as shown in Fig. 7.

I find it desirable to utilize a freely rotating guide Wheel as an edge rest for the shoe when working around the toe and a straight guide rest when working on the side and shank and therefore I provide means which will permit of either of these rests being thrown into or out of operative position. Referring to Figs. 1, 2 and 3, a rotatable wheel 1 23 is mounted on a stud 124 at the end of one arm 125, a similar arm 126 substantially at right angles thereto being formed with its end 127 as a rest to contact with the work and both these arms are rigidly mounted on a spindle or post 128 perpendicular to the same and adapted to fit within a sleeve 129 having a supporting stem 130 held in a bearing 131 provided therefor in the bracket 34, a set screw 132 holding the same in adjusted position. The upper part of the sleeve 129 is recessed at 133 and a pin 134 secured to the post 128 limits the rotative movement of the

arms

125 and 126 as said pin traverses the recess 133. When the pin 134 is at either end of said recess an

arm

125 or 126 is in proper position to engage the work. To hold and lock either arm in operative position as desired, I attach rigidly to the bottom of the post 128 a nut 135 carrying a lug 136 to which is pivoted a lever 137. Near the other end of said lever is pivotally attached a pin 138 adapted to slide through a recess provided therefor in the nut 135 and to engage one of two recesses 139 (Fig. 3) in a flange 140 on the adjacent end portion of the sleeve 129 to lock the post 128 in desired position. These holes 139 are in proper relative position so that the post and consequently the

arms

125 and 126 are locked in the extreme position to which said arms and post may be swung, as permitted by the pin 134 and its recess 133 already described. T actuate the lever 137 to force the pin 138 into engagement with either of the recesses 139 when the same are in position to register I arrange a spring 141 anchored within a bored recess 142 in the post 128, as clearly shown in Fig. 1. The operator may thus quickly present either the wheel 123 or the face 127 of the work rest by depressing the end of the lever 137, so as to release the locking pin 138 from its engagement in the recess in the flame 140, and swinging the

arms

125, 126 with the post 128.

In the operation of the machine, the shaft 5 is continuously rotated so that the wiper bar 26 and, therefore, the wiper forks 36 and 37 together with the

side wipers

42 and 43 are uninterruptedly reciprocated. The pulley 24 is actuated continuously preferably at a less speed than the shaft 5 is rotated. The tack driving cam 23 is fixed to a shaft 6 which is adapted to be clutched to the pulley 24 and thento be released after a single tack driving operation, by any of the well known types of one revolution clutch and brake mechanism. I have not shown this mechanism in detail as it forms no part of my present invention and is an ordinary and well known mechanism in use in this type of machine arranged to be actuated by a foot treadle so that a tack may be driven at the will of the operator. In lasting the toe of a shoe, the operator usually works from the center of the toe along one side, then returns to the center of the toe and works along the other side, using first one of the

grippers

59 or 60 and then the other, as has been explained. In lasting that side of the toe of a shoe where the shoe is fed from right to left viewing Figs. 1 and 6, for example, the operator positions the shoe as roughly designated by dotted lines in Fig. 1, holding the shoe against the bottom rest 118, and resting the side of the shoe against the idler 123, he then depresses the foot treadle connected with the rod 85 to move the ratchet wheel 79 and cam 78 beyond the position where said cam holds the arm 58 and gripper 60 out of operative position and also beyond the short teeth 103. The spring 64 then yieldingly forces the gripper 60 into position inside the leather and lining and adjacent to the pincer jaw 115, where it may coiiperate with the prong 36 of the wiper and constitute a wipinggripper during the lasting of the toe portion. The constant reciprocation of the wiper-bar 26 acts to engage and last the shoe as the operator feeds it along and the

wide bars

42 and 43 further wipe, strain and work the leather toward the point of the upper being pulled by .the wiping gripper, pushing the fullness away from the edge and into the best position for being held by the lasting tack when driven, this continuous lasting action being kept up and tacks driven at intervals until a predetermined number of tacks has been driven and the lever 96 has rotated the ratchet 79 and its attached cam wheel 78 a predetermined distance, as fixed by the number of teeth in a series 104, and again brought the cam into position to engage the roll 105 on the rod (58, and throw the gripper'fiO outwardly. The gripper is then maintained in outward position as the short teeth 103 cannot be reached by the pawl on the lever 96. A sufficient number of lasting tacks has now been driven, each by actuation of the foot treadle to clutch on the cam 23, to finish one side of the shoe toe. If, however, under certain conditions further lasting of that side of the toe is required, the reciprocating pronged wiper 36, 37 and side wipers 4:2, 13 may be employed further to treat that side of the toe, and as many additional tacks may be inserted as are needed properly to fasten that side of the toe. Furthermore, if desired, the gripper may be again thrown in by operation of its associated treadle, and the predetermined number of operations of the tacker required before the gripper is again thrown out may be lessened to any desired degree by operation of the treadle; in fact, such lessening of the predetermined number may be eifected in this way at any time, the number of teeth in a series 104, shown as 10, being selected as probably the maximum required for one side of any toe, The operator then swings the shoe around topresent the other side of the toe, positions it as before with relation to the rest 118 and actuates the foot treadle connected with the rod 90 to rotate the cam 74 and release the gripper 59 and also to actuate the ratchet wheel 76 to carry its short teeth 103 beyond the other pawl 97 and bring a series of long teeth 104 into position for engagement by that pawl 97 on the lever 96. After a predetermined number of tacks has been driven on that side of the toe, the gripper 59 is automatically thrown out, as will be 38 and pincer 115 to last the upper. During I the lasting of the sides of the shank, the edge rest 123 may be shifted and the face 127 of the work rest brought into use. will be understood that in conjunction with the tacking operation the presser 38 moves forwardly as actuated by the arms 1 10, 112

and the pincer 115 is actuated to seize and hold the upper inthe position to which it tinuously, until the full stretch of the leather has been drawn out, and then a lasting tack driven. At any moment the operator may swing into use either of the

grippers

59 or 60, if desired, and is thus enabled to last entirely around the shoe, utilizing the most advantageous instrumentalities at both the toe and heel portions, as well as at the sides and shank of the shoe, to operate on those particular parts by an instantaneous change at will.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a machine of the class described, mechanism to work a' shoe upper over the edge of the sole or insole, comprising gripper means to engage and last the upper at one point, and wiper means to work the upper toward said gripper means, in combination with devices to drive a lasting tack at will. r

2. In a machine of the class described, mechanism to work a shoe upper over the edge of the sole or insole, comprising a wiper and a plurality of leather engaging devices adapted to work the leather from points at opposite sides of the wiper into the field of action of the wiper.

3. In a machine of the class described, mechanism to work a shoe upper over the edge of the sole or insole including leather gripping and leather wiping means, said wiping means comprising a plurality of leather engaging devices adapted to work the leather from a plurality of directions toward the tack driving point, incombinzr tion with means to drive a lasting tack at the completion of any forward lasting operation of said work-engaging devices.

4:. In a machine of the class described, mechanism to work a shoe upper over the edge of the sole or insole, means to drive a tack at the will of the'operato r, lasting mechanism, comprising'means-to engage and pull the upper leather toward the tack driving point, in combination with means to supplement said lasting means by leather engaging wipers each movable in a path converging toward said lasting means.

5. In a machine of the class described, mechanism to work a shoe upper over the edge of the sole or insole, means to drive a tack at the will of the operator, lasting mechanism, comprising means to engage and pull the upper leather toward the tack driving point, in combination with means to supplement said lasting means by leather engaging wipers movable in converging paths from either side toward said lasting means.

6. In a machine of the class described, mechanism to work a shoe upper over the edge of the sole or insole, means to drive a tack, means to last the upper, comprising a plurality of lasting wipers, and means to actuate said wipers a predetermined number of times before a lasting tack is driven, in combination with means to engage and hold the upper during each retractive movement of said wipers.

7. In a machine of the class described, mechanism to work a shoe upper over the edge of the sole or insole, means to drive a tack, means to last the upper, comprising a plurality of lasting wipers moving in a converging direction, and means to actuate said wipers a predetermined number or" times before a lasting tack is driven, in combination with means to engage and hold the upper during each retractive movement of said wipers.

S. In a machine of the class described, mechanism to work a shoe upper over the edge of the sole or insole, comprising a forked wiper, coiiperating grippers adapted to act with each fork of said wiper, and means to throw a gripper into or out of cooperative position with its respective wiper fork during the continuous operation of said wiper.

9. In a machine of the class described, mechanism to work a shoe upper over the edge of the sole or insole, comprising wipergripper mechanism, in combination with a plurality of side wipers to engage and work the shoe upper toward the point engaged by the wiper-gripper, during the forward moving action of said wiper-gripper, in combination with means to drive a tack at will at the completion of the lasting operation of all said upper working devices.

10. In a machine of the class described, mechanism to work a shoe upper over the edge of the sole or insole, comprising lasting mechanism including a reciprocating wiper, side wiping means, and mechanism to actuate said side wipers obliquely with relation to the reciprocating wiper in converging paths so disposed as to work the upper into the field of action of the reciprocating wiper.

11. In. a machine of the class described, mechanism to work a shoe upper over the edge of the sole or insole, comprising lasting mechanism including a reciprocating wiper, side wipers actuated to move forwardly with said wiper, and mechanism to actuate said side wipers in converging paths.

12. In a machine of the class described, mechanism to last a shoe, having means to engage and pull the upper at one point, in combination with means to engage and stretch the upper from either side of said point into the field of action of said upper engaging means during the pulling opera tion of said upper engaging means.

13. In a machine for progressively lasting an upper, the combination with tacking mechanism operable at will, of continuousl driven wiper mechanism operating at each side of the tacking mechanism, and a pincer mechanism located between the wipers and operating in conjunction with the tacking mechanism to pull the wiped upper prior to each tack driving operation.

14. In a machine for progressively lasting shoes, the combination of a wiper having a smooth rounded end, means for reciprocat-- ing the wiper over the shoe bottom in a substantially straight line constructed and arranged to give an upward component oi movement to the wiper at the advance end of its reciprocation, yieldingly mounted means to reach under the margin of the upper material having a curved face against which the wiper grips the upper to draw it as the wiper advances and along which the upper may slip during the upward component of movement or the wiper.

15. In a step by step lasting machine devices arranged to rub over the edge of shoe bottom at more than two closely adjacent points while gathering from one side of an intermediate one of the rubbing devices into the field of action or said intermediate device.

16. In a step by step lasting machine two closely adjacent rubbing fingers and operating mechanism organized to advance one finger in a right line across the edge of the last and to advance the adjacent finger obliquely with relation to that line and in a path to work the upper into the field oi action of the right line moving finger.

17 In a step by step lasting machine two closely adjacent rubbing fingers and operating mechanism organized to advance the fingers together with one finger traveling in a right line and simultaneously to swing the work rubbing portion of the other finger toward the right line moving finger.

18. In a step by step lasting machine, a wiper having a downturned work rubbing end and a recess behind said end, an auxiliary wiper located laterally adjacent to said wiper and having its work rubbing portion arranged to advance obliquely to the first Wiper and enter said recess, and mechanlsm for operating said wipers.

19. In a step by step lasting machine,

render the gripping means inoperative after a predetermined number of tack driving operations and while the wiping means continues operative.

21. In a step by step lasting machine, wiping means, gripping means, and operating mechanism for said means combined with controlling means arranged to be operated progressively and to throw the gripping means out of action at the end of a predetermined number of operations of the controlling means.

22.'In a step by step lasting machine upper pulling means and upper rubbing means, upper tacking means and operating mechanism for the tacking means arranged to enable a tack to be driven at the option of the operator while the pulling and rubbing means continue uninterruptedly in operation.

23. In a machine of the class described, mechanism to work a shoe upper over the edge of the sole or insole, including leather gripping and leather wiping means, said wiping means comprising a plurality of leather engaging devices adapted to work the leather in different directions from a plurality of points toward the point at which a tack is to be driven, in combination with means under the control of the operator to drive a tack at any time during the operation of said leather engaging devices.

24. In a step by step lasting machine, the combination with a wiper having an orbital path of movement carrying it over the shoe bottom in Wiping contact with the shoe upper and thence upwardly and backwardly, of a yieldingly mounted member located in the path of the wiper having a smooth surface arranged to engage the inner side of the stock while the wiper engages the outside of the stock'and moves upwardly relatively to the member while holding the upper against it.

25. In a machine of the class described, mechanism to Work a shoe upper over the edge of the sole or insole and secure it, comprising means to drive a'tack, means to last the upper comprising a plurality of reciprocating wipers moving in converging directions, and means to actuate said wipers repeatedly before a tack is driven, in com bination with means to engage and hold the upper durlng that retracting movement of ed and arranged for repeated operation upon a given portion of the upper and comprising a central member and members operating in converging paths toward the central member, and means acting in advance of the tacking means for pressing and holding the wiped over upper to the last for the tacking operation.

28. In a machine of the class described, tack driving means, wiping means constructed for repeated operation upon a given portion of the upper and comprising members operating in converging paths toward a point between them at which the tack is to be driven, and means comprising a pincer jaw and a presser which cooperate to seize the wiped over upper and draw it over the last and press it upon the last while the wiping means continues in operation and just prior to the tack driving operation.

29. In a machine of the class described, mechanism to work a shoe upper over the edge of a sole or insole comprising a Wiper, a tacker arranged to insert a tack in front of said wiper, grippers adapted to cooperate with the wiper one at each lateral side of the tacker, and means controlled by the tacking mechanism for rendering either gripper inoperative after a predetermined number of tacks has been driven.

30. In a machine of the class described, mechanism to work the shoe upper over the edge of a sole or insole comprising a wiper, a tacker arranged to insert a tack in front of'said wiper, a gripper adapted to co6per- 31. In a machine of the class described,

mechanism to work the shoe upper over-the edge of a sole or insole comprisinga wiper, a tacker arranged to insert a tack in front of said Wiper, a gripper adapted to cooperate with thewiper, means controlled by the tacking mechanism for rendering the gripper inoperative after a predetermined number of tacks has been driven, and means under manual control while the machine is in operation for varying the number of tacking operations permitted before the gripper is rendered inoperative.

In a machine of the class described, mechanism to work the shoe upper over the edge 01 a sole or insole comprising a wiper, a tacker arranged to insert a tack in front of said wiper, a gripper adapted to cooperate with the wiper, means controlled by the tacking mechanism for rendering the grip per inoperative after a predetermined number of tacks has been driven, and means under manual control while the machine is in operation for diminishing to any desired extent the number of tacking operations permitted before the gripper is rendered inoperative.

33. In a machine of the class described, a gripper mechanism operating continuously, a pincer mechanism under manual control, and means for rendering the gripper mechanism inoperative after a predetermined number of operations of the pincer mechanism.

34. In a machine of the class described, a continuously operated wiper-gripper mechanism comprising gripping and wiping elements, an auxiliary mechanism under manual control for seizing and working over the shoe bottom stock that has been treated by the wiper-gripper mechanism, and means for rendering the gripping element inoperative after a predetermined number of operations of the auxiliary mechanism without afiecting the operation of the wiping element.

35. In a machine of the class described, tacking mechanism, gripping mechanism constructed and arranged to operate repeatedly on one part of the upper and located one at each side of the tacking mechanism in close proximity thereto, and a gripping mechanism located between the two first gripping mechanisms and adjacent to the tacking mechanism.

36. In a step by step lasting machine, the combination of tacking mechanism, wiping and gripping mechanisms operating at each side of the tacking mechanism in close proximity thereto, and a wiping and gripping mechanism located between the two first wiping and gripping mechanisms and adj acent to the tacking mechanism.

37. In a machine of the class described; tacking mechanism operable at will, continuously driven wiping and gripping mechanisms operating at each side of the tacking mechanism, and a third gripper mechanism located between the wiping and gripping mechanisms and operating in conjunction with the tacking mechanism to pull the upper prior to the tack driving operation.

38. In a step by step lasting machine, the combination with a wiper having an orbital path of movement carrying it over the shoe bottom in wiping contact with the upper and thence upwardly and backwardly, of a yieldingly mounted member located in the path of the wiper and arranged to engage one side of the stock, said member being curved toward the wiper and extending below the plane of the wiper on the inner side of the stock, the wiper engaging the outer side of the stock and moving along the shoe bottom and upwardly along the curved portion of the member to pull the stock over the last and upwardly.

39. In a machine for progressively lasting a shoe upper, the combination of tacking mechanism operable at will, continuously driven wiping mechanism operating at each side of the tacking mechanism, and a pincer gripping mechanism located between the wiping portions of the wiping mechanism and operating in conjunction with the tacking mechanism to pull the upper prior to each tack driving operation.

40. In a machine for working an upper progressively over a last bottom, the combination of a reciprocating wiper, a tacker arranged to insert tacks in advance of the wiper, and wiper-grippers located one at each side of the wiper and adapted to cooperate with said wiper in working the upper into lasted position.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

CHARLES F. PYM.

Witnesses E. O. KREUTLER, M. E. ZIMMERMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0."