US1030629A - Lasting-machine. - Google Patents

Description

E. E. WINKLEY. LASTING MACHINE.

APPLICATION I'II ED OUT. 24, 1910. RENEWED MAY 18, 1912. 1,030,629. Patented June 25, 1912.

5 SHEETS-SHEET 1.,

E. E. WINKLEY.

- LASTING MACHINE.

APPLICATION FILED 001224, 1910. RENEWED MAY 1a, 1912.

1,030,629, Patented June 25, 1912.

I 5 SHEETS-SHEET 2.

flwzzgw' & W MWJ m%gza 1 f m E. E. WINKLEY.

LASTING MACHINE.

APPLIOATION FILED 00124, 1910. RENEWED MAY 1a, 1912.

Patented June 25, 1912.

5 SHEETS-SHEET 3.

E. E. WINKLEY.

LASTING MACHINE. APPLICATION FILED OCT. 24, 1910. RENEWED MAY 18, 1912.

1,030,629. Patented June 25, 1912.

. I V 5 SHEETS-SHEET 4.

we /29 r COLUMBIA PLANJGRAP c E. E. WINKLEY LASTING MACHINE. v APPLIOATION'IILB'D 00124, 1910. RENEWED MAY 18, 1912.

1,030,629. E Patented June 25, 1912.

' 5 SHEETS-SHEET 5. 25?: 19.

Zdfimess e5 ERASTUS E. WINKLEY, 0F LYNN, MASSACHUSETTS.

LAsTINe-MAonmE.

Specification of Letters Patent.

Patented June 25, 1912.

Application filed October 24, 1910, Serial No. 588,628. Renewed May 18, 1912. Serial No. 698,323.

To aZZ whom it may concern:

Be it knownthat- I, Erasmus E. WINKLEY, a citizen of the United States, residing at Lynn, in the county of Essex and State of lvjlass'achusetts, have invented certain new and useful Improvements in Lasting-Machines; and I do hereby declare the follow ing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to lasting machines and more particularly to lasting machines of the type commonly known as hand method lasting machines. In machines of this type a shoe, having had its upper previously pulled-over, has the upper drawn to the last and secured in position by a succession of operations of a single pair of mechanicallyoperated pincers and a suitable tacking mechanism, the shoe being fed and guided past the pincers by the operator so that. the lasting operation proceeds progressively as different portions of the shoe are being operated upon.

In lasting machines of the hand-method type several distinct movements are imparted to the pincers. The principal movements are those by which the upper is stretched tightly against the last and then laid over the insole in position to receive the tack. At certain portions of the shoe, however, particularly at the toe, the fullness of the upper materials is such as to require two additional movements of the pincers, namely, a lateral side-reaching movement and a turning or wringing movement by which the fulled materials are arranged snugly over the insole in folds or plait-s.

A well-known example of a hand-method lasting machine in which the pincers have the several movements just described is the machine disclosed in the United States patent to Ladd and McFeely, No. 58d,7 l{l, dated June 15, 1897. In the Ladd and McFeely machine, mechanism is provided for imparting both the lateral movement and the turning movement to the pincers, and this mechanism is so constructed that, by means of a device under the control of the operator, it may be thrown into or out of operation during the operation of the machine. In that machine the controlling device has the further function of adjusting the mechanism in question so as to simultaneously vary the amplitude of the lateral. and turning movements of the pincers. In using the Ladd and McFeely machine the operator, when operating about the toe of the last, throws into operation the means for imparting the lateral movement and the turning movement to the pincers using the maximum movements. As the work progresses away from the center of the toe, however, the operator gradually adjusts the mechanism to reduce the lateral and turning movements, until finally the pincers work with pulling movements only, that is, the up-draw and overdraw.

On most shoes the line along the periphcry of the last bottom from the center of the toe to the inside of the shoe is of different curvature from the line from the center of the toe to the outside. Therefore, it is necessary for the operator to continue the lateral and the turning movements ,of the pincers for a greater distance on one side than on the other and, on many styles of shoes, one side will require greater amplitude of these movements than the other. The adjusting operation performed by the operator, as above described, requires skill and close attention and does not produce absolutely uniform results.

The object of the present invention is to provide means to automatically adjust the mechanism above described, thereby enabling an operator to produce shoes on which the fulled upper at the toe will be properly lasted and with exact uniformity on each shoe of a pair. Itis believed that this is the first machine in the art for performing this object and that all the features of the invention hereinafter described and claimed are broadly new.

In accordance with this object, one feature of the invention comprises automatic adjusting devices, preferably so arranged that in starting the lasting operation at the center of the toe of the shoe the full lateral and turning movements are imparted to the pincers, but diminishing the amplitude of these movements at each successive operation of the pincers. After a suflicient number of steps, in accordance with the size of shoe being operated upon, the pincer operation is reduced automatically to the required simple pulling movements. In this connection it is proposed further to so arrange the mechanism that the automatic deest vices control the lateral movements and the turning movements of the pincers independently. In accordance with this feature of the invention means is provided whereby one movement may be reduced or adjusted at a different rate from the other, or entirely independent thereof.

Another feature of the invent-ion comprises mechanism which will automatically adjust the amplitude of the lateral and the turning movements to properly operate upon the toe of a shoe in the. customary manner, that is, first one side of the toe starting from the center and then upon the other side. In connection with this feature, a selecting device is provided by which the automatic adjusting devices may be set to operate first upon either the inside or out side of the toe of either a right or left shoe. It is further proposed to so arrange the automatic adjusting mechanism that it may be thrown into operation manually, and that, when it is out of operation, the lateral and turning movements of the pincers may be adjusted, if desired, wholly by the operator.

To the accomplishment of these objects and such others as may hereinafter appear, the invention comprises the features and combinations of parts hereinafter described and more particularly pointed out in the appended claims.

The preferred form of the invention is illustrated in the accompanying drawings, in which Figure 1 is a side elevation of the upper portion of a lasting machine embodying the present invention; Fig. 2 is a front elevation of the lasting machine of Fig. 1, showing also the knee-controlled mechanism for operating the adjusting mechanism; Fig. 3 is a vertical section on the line 33 in Fig. i

. 1, looking from front to rear; Fig. 4 is a vertical section taken near the plane of the line 33, and looking from front to rear, showing parts of the adjusting mechanism in a diiferent position from Fig. 3; Fig. 5 is a side elevation of one of the connecting members of the adjusting mechanism, on an. enlarged scale; Fig. 6 is a perspective view, on an enlarged scale, of another detail of the adjusting mechanism; Figs. 7 and 8 are diagrammatic views of a right and a left shoe or last, respectively; Fig. 9 is an enlarged side elevation, partly in section, of the clutches and the cam mechanisms of the adjusting means; Fig. 10 is a diagrammatic front elevation of the adjusting cams; Fig. 11 is a section on the line 1111 in Fig. 9, looking rearwardly; Fig. 12 is a section on the line 12-12 in Fig. 2, showing the setting device for the ad'usting means; and Fig. 13 is a vertical e evation, on a larger scale, on the line 13-13 in Fig. 12.

. The invention is illustrated as embodiedin. a machine of which the construction and operation are, in general, the same as in the Ladd and McFeely machine, and the machine is, therefore, illustrated and particularly described only in so far as is necessary for an understanding of the improvements comprised in the present invention.

Referring to Fig. 1, the machine has work-rests 16 and 17 and pincers 18. The construction and operation of the pincers are somewhat different from the Ladd and McFeely machine, being in accordance with an invention disclosed by a pending application of the present applicant, filed Oct. 21, 1909, Serial No. 523,770. In so far as the present invention is concerned, however, this is immaterial. The lateral movements of the pincers are controlled, as in the case of the Ladd and McFeely machine, by a slide 19 (Fig. 2) connected with the pincer supporting devices and sliding transversely in a yoke 21 at the forward end of a rod 22. This rod is moved longitudinally to give the forward and backward movements to the pincers, by mechanism having no bearing on the present invention. The slide 19 is moved longitudinally, to give the lateral movements to the pincers, by means of a connecting rod 23, this rod being attached by a universal joint 21 to a slide 25 having curved tongues engaging correspondingly formed guides in a rocking shoe 26. The shoe 26 is fixed on the forward end of a hollow shaft 27 (Fig.

The construction just described is all the same as in the Ladd andMcFeely machine, and the means for moving the slide 25 in the shoe 26 comprise, as in that machine, a I shaft journaled within the shaft 27, a rack and pinion connection between this shaft and the slide and means for rotating the shaft including a longitudinally movable member 28 (Fig. 1). With the exception of the latter element these parts are not illustrated in the present drawings. As shown in Figs. 1 and 3, the member 28 is grooved peripherally to receive pins in the ends of a yoke 29 pivoted at 31 on the frame of the machine and this yoke has a forwardly extending arm 32 pivoted to the upper end of a link 33. The lower end of the link is pivoted to a sleeve 34 clamped upon a rod 35 which slides vertically in I controlling means or with the automatic adjusting mechanism.

In the illustrated machine the pincers are carried by an inclined shaft 36 which is connected by a universal joint 37 with a vertical rock-shaft 38 which turns in bearings in a frame-member 39. This frame-member is suspended by means of a ball and socket joint 41, shown in dotted lines in Figs. 1 and 2, this joint corresponding to the similar universal joint by which the pincers are suspended in the Ladd and Mc- Feely machine.

To impart turning movements to the pincers, a pinion 43 is fixed on the rock-shaft 38 and this pinion engages a rack 44 sliding horizontally in guides 45 on the framemember 39. One end of the rack is connected (Fig. 2) by a link 46 with the lower end of a lever 47 pivoted on a bracket 48 projecting from the frame-end of a lever 47 pivoted on a bracket 48 projecting from the frame-member 39. The upper end of the lever is connected, by a universal joint 49, with one end of a connecting-rod 51. This connecting-rod is arranged close to the universal joint 41, so that the turning movements of the pincers are not substantially affected by the swinging movements of the pincers. The other end of the rod 51 is pivoted, at 52, to a slide 53 having a tongue and groove connection with a curved shoe 54 similar in its operation to the shoe 26. The shoe 54 is carried by an arm 55 (Fig. 1) which is mounted on a rock-shaft journaled at 57 on the frame of the machine. In the position of the parts shown in Fig. 2 the pivotal center 52 is coincident with the axis of rotation of the rock-shaft and, therefore, oscillating movements imparted to the shoe 54 will have no effect upon the connecting rod. This is the normal condition of the machine when no turning movement is required in the pincers. When it is desired to turn the pincers, however, the slide is moved toward one or the other end of the shoe, according to the direction in which the pincers are to be turned, and an oscillating movement imparted to the shoe will, at such a time, cause the slide to actuate the connecting rod through the mechanism described, and turn the pincers to a greater or less degree during each operation upon the shoe-upper.

Both the shoe 26 and the shoe 54 are constantly oscillated during the operation of the machine. The means for oscillating the shoe 26 are similar to those in the Ladd and McFeely machine and comprise a pinion 66 fixed on the shaft 27, a cam-lever 63 pivoted on the frame of the machine, and a segmental gear 65, on the end of the camlever, engaging the pinion 66. These parts are shown in dotted lines in Fig. 2. The cam-lever is actuated by a connection with a cam (not shown) as in the Ladd and Mc- Feely machine.

The shoe 54 is oscillated.

by connections with the cam-levers 63. An adjustable connecting-rod 61 is pivoted at 62 on the cam-lever and the upper end of this connecting rod is pivoted at 59 on an arm 58 extending from the arm 55.

The mechanism by which the adjusting means may be controlled by the operator, comprise a fork 67 (Fig. 2) adapted to embrace the knee of the operator in the usual manner. This fork is mounted on a lever 68, pivoted on a vertical pin mounted in lugs 69 on the standard 71 of the machine. The lever 68 carries a cam 72 having an inclined slot engaged by a cam-roll 73. This cam-roll is journaled on a rod 74 which slides vertically in a bearing at its lower end. The upper end of the rod 74 is pivoted to an arm 75 (Figs. 1 and 6.) This arm is fixed at its lower end on a rock-shaft 76 journaled in a sleeve 77 on the frame of the machine. At its outer end the arm 75 is provided with a socket 78 and the socket constitutes means for connecting the arm with a coupling member, which coupling member is connected with the mechanism abovedescribed for varying the position of the slide 25 in the shoe 26.

The coupling member just referred to, which is illustrated particularly in Fig. 5 and is designated generally by the reference number 81, comprises two plates 82 of gen erally triangular form, which are connected at their outer angles by a cross-pin 83. At their lower angles the plates are connected by a pin 84 upon which they are loosely pivoted. This pin is fixed in the upper end of the rod 35, before mentioned. A coiled spring 85, fixed at oneend to the pin 84, engages at its other end a pin 86 on the coupling member and tends constantly to swing the member outwardly into such position that a pin 79, projecting laterally from one of the plates82, as shown in Fig. 5, will enter the socket 78 on the arm 75. With the parts in the position last described, if the knee-fork 67 be swung to the right or left, the rod 74 will be raised or lowered accordingly, thereby raising or lowering the arm 75 and, through the operation of the socket 78 and pin 79, the coupling member 81 will be raised or lowered, carrying with it the slide-rod 35. This latter member, through the connections before described, comprising the link 33, arm 32, etc., will thus act to shift the slide 25 in the shoe 26. Thus by varying the distance of the universal joint 24 from the axis of the shaft 27, the amplitude of lateral movement imparted to the pincers is adjusted.

In order that the turning movement of the pincers, as well as the lateral movement, may be under the control of the knee-fork 67, the rock-shaft 76 has fixed to its forward end an arm 87 similar to the arm 75 and having a socket similar to the socket 78.

This socket is adapted to, engage a pin 88 (see dotted lines Figs. 2 and 3) projecting from one of the side members of a coupling member 89. This coupling member is similar in construction to the member 81, and is provided at its outer corner with a cross pin 91 and, at its lower angle, with a pin 92. The pin 92 is fixed in the inner end of an arm 94 and a spring 95 surrounding the pin 92 throws the coupling member 89 normally outward, so as to cause the pin 88 to engage the socket in the arm 87.

The arm 94, just referred to, is integral with a sleeve 96, which is loosely journaled on a shaft 97. The forward end of the sleeve 96 has a second arm 98 (Fig. 2) which projects inwardly and is pivoted at 99 to the lower end of a link 101, of which the upper end is pivoted to the slide 53. The upper pin 99 has a rearwardly projecting end which is guided by a curved groove in a cam 102 mounted on the frame of the machine. Owing to the use of the cam 102, it is necessary to make provision for a slight lateral movement of the shaft 97, and for this purpose the shaft is mounted in arms 103 projecting upwardly from a sleeve 104 loosely j ournaled on a shaft- 105 mounted on the frame of the machine. When the kneefork is moved and the rod 74 raised or lowered, as above described, the couplingmember 89 is raised or lowered simultaneously with-the coupling member 81 and it operates to swing the arm 94, the sleeve 96, and thus, through the link 101, to move the slide 53 and vary its distance above or below the axis of the rock-shaft 57, thereby varying the amplitude of the turning movement of the pincers. When the lateral and turning movements of the pincers are to be controlled automatically, the coupling mem bers 81 and 89 are thrown out of engagement with the arms 7 5 and 87 and into engagement with cam controlled actuating mechanism, which will now be described Upon the main drive shaft 108 of the machine is mounted an eccentric 109 embraced by an eccentric strap on the lower end of a rod 111. The upper end of this rod is pivoted by a pin 112 to an upward projection 113 from a slotted arm 114. This arm, as shown in Figs. 1 and 3, is integral with a yoke 115, of which the ends are provided with stems 116 and 117 journaled respec tively in sleeves 118 and 119 on the frame of the machine. The yoke 115 is provided with a second slotted arm 121 similar to the arm 114.

A link 123 is adjustably secured, by bolts 122, to each of the slotted arms 114 and 121. The lower ends of these links are pivoted on the arms125 of two Horton clutches 133 and 233 (Figs. 1 and 9). A sectional view of the clutch 133 is shown in Fig. 11, the clutch 233 being similar in construction The arms 125 are integral with the sleeves 126 which are adapted to be oscillated by the motion produced by the eccentric 109. Each clutch has an inner member 127 provided with suitable seats for spring pressed rolls 128. Flanges 131 and plates 132 secured to the member 127 embrace the sleeves 126. These clutches are well known devices to change a reciprocating motion to an intermittent motion in one direction and no further description is necessary. The member 127 of the clutch 133 is keyed to a hollow shaft 129 having bearings in the frame of the machine and the like member of the clutch 233 is secured to a shaft 136 inside the hollow shaft 129. The shafts 129 and 136, when actuated by the clutches in the direction of the arrows, actuate the caminechanism by which the movements of the pincers are adjusted. Since this cam-mechanism is not operated at all times, however, means are provided for throwing the clutches into and out of operation. To this end the inner clutchanembers are provided with radially-extending arms 137 upon each of which is pivoted a dog in the form of a bell-crank lever having two arms 139 and 141. By means of a spring 142 each dog is normally held with the arm 139 against the outer surface of the clutch-sleeve and the arm 141 projecting outwardly as in Fig. 11.-

From the adjacent surfaces of the clutcharms 125 project lugs 143 which are "adapted to engage the ends of the arms 139 of the dogs. In the normal position of the apparatus, as in Fig. 11, at each downward oscillation of the arm 125, the clutch-member 127 is rotated a short distance, thereby carrying downwardly the dog which is directly above the lug 143. Upon the return movement of the arm 125, however, the lug 143 engages the arm 139 and thereby rotates the clutch-sleeve back again to its original position, and thus no continued rotation is imparted to the shaft 129 or 136. When the cam-shafts are to be rotated, however, the clutches are thrown into operation by means of a trip-arm 145, of which the end lies above the arms 141 of the two uppermost dogs, as shown in Figs. 1 and 11. This triparm (Fig. 4) is fixed to a rock-shaft 146 journaled in the frame of the machine, and from this rock-shaft a second arm 147 extends upwardly, in line with the adjacent side-plates of the two coupling members 81 and 89. When, therefore, either of these coupling members is thrown inwardly, as will be presently described, the arm 147 is thrown inwardly and the trip-arm 145 is depressed to the position of Fig. 4. In this position the trip-arm engages and depresses the arms 141 of the two dogs beneath it, thereby allowing the dog-arms 139 to pass over the lugs 143. As soon as this has occurred, these lugs no longer throw the dogs and the clutch-sleeves backwardly and the clutches, therefore, .produee by intermittent steps quarter rotations of the cam-shafts, this rotation being finally arrested when the next pair of dogs has been brought into 0perative relation with the lugs 1 13.

The cam-mechanism comprises a cam 148 fixed on the forward end of the shaft 129 and engaging a cam-roll 1 19 which is pivoted in a link 151. This link has a slotted lower portion 152 which embraces and is guided by the shaft 129. The upper end of the link is connected by a pivot-pin 153 with the inner end of a coupling-lever 154. This lever has a forked outer end 155 provided at its center with notch 156. This forked end lies partly between the sideplates of the coupling-member 81 and the notch is adapted to receive the cross-pin 83 when the coupling-member is thrown inward, the cross-pin being guided into the notch by the inclined surfaces of the fork, whatever the relative positions of the parts may happen to be. When the parts are engaged as just described, the cam-mechanism is thrown into operation by the trip-arm 14.5, as above described, and the cam-mechanism then operates to raise or lower the coupling-member 81 and thus to vary the lateral movement of the pincers automatically and independently of the knee-fork.

Manually-operable means are provided for throwing the cam-mechanism into operation in the manner just described. To this end ahand-lever 157 is pivoted, at its lower end, on the shaft 105, and this lever is provided with projections 158 adapted to engage the ,coupling-member 81 when the hand-lever is thrown inwardly. To retain the coupling-member 81 in engagement with the coupling-lever 154, a latch 159 is employed which, when the pin 83 enters the notch 156, falls behind the pin and prevents its withdrawal.

A cam 161, for controlling the turning movement of the pincers, is fixed on the cam-shaft 136 (Fig. 9) and engages a camroll 168 journaled in a link 163 similar to the link 151. This link is pivoted tothe rear end of a coupling-lever 165 having a forked outer end 166 and a notch 167 adapted to engage the pin 91 in the coupling-member 89. A tension-spring 181, connecting the lever 165 with the frame of the machine, tends to raise the lever so as to maintain the cam-roll 162 in engagement with the cam 161. The latter couplingmember is controlled by a second hand-lever 168 pivoted on the shaft 105 and provided with a handle 191 at its upper end. This handle is arranged at right angles to the handle on the lever 157 in order that either lever may be conveniently grasped and operated independent of the other, if desired. In order that both levers may be operated as one, however, the handle 191 is pivotally mounted on the lever 168 so that it may be turnedand it carries a lug 192 adapted to be thrown into position to engage the lever 157. "When this lug is so used both levers may be thrown inward together by a single manual operation, so as to cause the simultaneous operation of the two adjusting mechanisms. The pin 91 is retained in the notch 167 by a latch 169 similar to the latch 159. 'Both these latches are in the form of hooked arms loosely pivoted on the shaft 76 and they are both connected with automatic mechanisms by which they may be actuated to release the coupling-members when necessary. To release the latch 169, a depending arm 174 (Fig. at) thereon is pivoted to one end of a link 173 having a slotted end guided on the cam-shaft 136. This link carries a cam-roll 172 engaging a cam 171 fixed on the shaft.. This cam has four high points so located that in the middle of each quarter revolution of the camshaft the cam-roll and the link are thrown outwardly so as to raise the latch and release the pin 91, and as soon as this occurs the coupling-member 89 is swung outwardly by its spring 95 so as to disconnect the cammechanism from the slide 53 and throw the adjusting mechanism controlled by the operator into operation. The latch 159 is controlled by a similar mechanism comprising an arm 177 depending therefrom, a link 176 pivoted to the arm, and a cam- 175 engaging the cam-roll (not shown) on the link. The

cam 17 5 is fixed to the hollow cam shaft 129.

By the means before described, either cam-mechanism may be thrown into opera tion separately or both cam-mechanisms may be thrown into operation simultaneously. Even in the latter case, however, since each cam-mechanism is disconnected automatically, after the )erformance of its function by an indepen entlatch-controlling cam, as just described, the two cammechanisms do not necessarily operate during the same number of operations of the pincers, but they may be so adjusted as to control the appropriate functions of the pincers through different number of pincer operations. The cam-mechanisms are adjusted in this respect by varying the positions of the pivot bolts in the slots in the arms 114 and 121. In the position of the parts shown in Fig. 3, for example, the pivot bolt is at the end of the arm 121 so that the arm imparts the maximum movement to the link 123, and thus to the corresponding clutch and to the cam-mechanism actuated thereby. l/Vith the parts so adjusted the cam 148 will perform its allotted quarter rotation in a minimum number of steps. By moving the pivot-bolt 122 nearer the axis 116 of the arm 121, the stroke of the clutch is correspondingly re duced, so that a greater number of strokes are required to turn the cam through a quarter rotation, and thus the cam-mechanism performs its function more gradually and a greater number of pincer operations occurs before the cam mechanism comes to rest and the latch mechanism operates to release the cou'plingmembers. The cams are arranged to move in four steps or quarter rotations for the reason that four distinct operations of each cam are usually required in lasting a pair of shoes. As shown diagrammatically in Figs. 7 and 8, the machine may be used first to last the inside A of the right shoe, and then the outside 13 of the same shoe, then the inside C of the left shoe, and finally the outside D of the same shoe. The series in which the parts of the shoe are to be operated uponmay be varied to suit the operator by providing different cams, the order herein given being the most common. For each of these operations the cam-mechanism must operate difierently, as the amount of turning movement and the lateral movement required in the pincers may not be the same for the inside and the outside of a shoe and also these movements must be in opposite directions according to the direction in which the machine is operating upon the shoe. The general form of the cams to produce the required result is illustrated diagrammatically in Fig. 10, which shows the cam 161 superposed on the cam 148.

- The cams rotate as indicated by the arrow 1 in Fig. 10, and in the initial position of the cams the cam-roll engages the cam 161 at the point a and the cam 148 at the point 12. While the cams turn until the cam-rolls engage the points 0 of the two cams, that is, through one-eighthof a rotation, the cammechanisms operate to move the slides in the two oscillating shoes from their extreme positions at the ends of the shoes to their jneutral positions at the pivotal axes of the 7 shoes, thereby gradually reducing both the not-hing.

lateral movement and the turning movement of the pincers from a maximum to When this point is reached the latch-cams operate to release the latches and disconnect the cam-mechanisms from the pincer-actuating mechanisms, but during the remainder of the quarter rotation of the adjusting-cams the movements of the cam-rolls above described are continued until the rolls are engaged by the points cl and e on the cams. At these points the mechanisms assume such positions that the forked coupling-levers are in their extreme positions opposite to those which they first held, that is to say, they are in such posi-. tions that when the coupling-members are again thrown into engagement with them,

the coupling-members, as their pins ride on the inclined surfaces of the forks, are

moved so'as to throw the slides tothe opposite extremities of the oscillating shoes, so that when the lasting operation is recommenced at the toe of the shoe just operated on, but on the opposite side from that first lasted, the lateral and turning movements of the pincers shall occur in the opposite direction and with full amplitude and shall then gradually diminishv again, when the cams are thrown into operation, during the next one-eighth rotation of the cams. It is evident that a great variety in the control of these movements may be obtained by providing cams of suitable form. For example, it is sometimes desirable that a small number of lasting operations be employed, with the turning and the lateral movements, upon the inside of the shoe while on the outside a larger number of these operations is required. For such a result, the links 123 would be adjusted to give the greater number of impulses to the cam in one-quarter of a revolution. Then the cam controlling the inside of the toe would be so formed that the pincers would be returned to their normal position in less than one-eighth of a revolution.

In beginning the operation of the lasting machine, or when a lasting operation imperfectly performed must be repeated, it is a slot in the cam-shaft 136 and is adapted to engage a not-ch 185 in the end of the camshaft 129. The rod is provided, at its outer end, with a disk-shaped handle 190 by which it may be turned and pressed. A spring 186, engaging the inner end of the rod, holds it normally in outward position, out of engagement with the notch 185, but by pressing and turning the handle the pin 184 may be engaged w1th the notch, so as to lock the two shaftsv together in proper relative position, and the handle may then be turned until the cams are brought into the position corresponding to the lasting operation to be performed. To assist the operator in setting the cam in this manner,

161 are designed to impart movements to the adjusting slides of the amplitude necessary for the style of shoe to be lasted and the cam-mechanisms are then setto complete these adjusting movements in a greater or less number of pincer movements. In lasting the upper atthe toe the operator first presents the tip of the toe to the machine this point is reached the cam-mechanism is disconnected automatically and the pincers have thereafter only the updraw and overdraw movements. After one side of the toe has been lasted as has just been described,

V the operator again begins at the tip of the toeand again throws the automatic adjusting mechanism into operation, and then the lasting operation proceeds as before toward the heel of the shoe. It the next shoe to be lasted is the mat-e of the one just lasted, the operations at the toe as just described are repeated without change. If it should be desired, however, to last two right shoes or two left shoes in succession, it is necessary for the operator, after lasting the first shoe, to reset the cam-mechanisms by means of the handle 190, to the original position. When, in lasting the sides of the upper, the operator reaches a point such, for example, as the end of the ball line on the inner edge of the last, he may, it the fullness of the upper requires it, throw the side-pull and turning mechanism momentarily into operation by means of the knee-torl: as in the Ladd and McFeely machine. By a proper adjustment of the links 123 the side draw may be employed for a greater number oft operations of the pincers than that during which the turning of the pincers is employed.

Nothing herein contained is to be interpreted as limiting this invention in the scope of its application to use in connection with the particular machine, or the particular mode of operation, or both, selected for purposes of illustration and explanation. While the particulars of construction herein set forth are well suited to one mechanical form of the invention, it is not to be understood that these particulars are essential since they may be variously modified within the skill of the artisan without departing from the true scope of the actual invention as defined in the following claims.

What is claimed as new, is

' 1. A. lasting machine, having, in combination, pincers, means for imparting pulling movements and lateral movements to the pincers, and mechanism operating automatically to vary the amplitude of said lateral movements at successive operations of the pincers, substantially as described.

2. A lasting machine, having, in combina tion, pincers, means for imparting pulling movements and turning movements to the pincers, and mechanism operating automatically to vary the amplitude of said turning movements at'successiv-e operations of the pincers, substantially as described.

A lasting machine, having, in combination, pincers, means for imparting pulling, turning and lateral movements to the pincers, and mechanism operating automatically to vary, independently, the amplitude of the turning movements and the amplitude of the lateral. movements, at successive operations of the pincers, substantially as described.

4. A lasting machine, having, in combination, pincers, means for imparting pulling movements and lateral movements to the pincers, adjusting mechanism operating antomatically to vary the amplitude of the lateral movements at successive operations oi? the pincers, and manually-operable means for throwing the adjusting mechanism into operation, substantially as described.

5. A lasting machine, having, in combination, pincers, means for imparting pulling movements and turning movements to the pincers, adjusting mechanism operating antomatically to vary the amplitude of the turning movements at successive operations of the pincers, and mannally-operabl-emeans for throwing the adjusting mechanism into operation, substantially as described.

6. A lasting machine, having, in combi nation, pincers, means for imparting pulling, turning and lateral movements to the pincers, adjusting mechanism operating automatically to vary, independently, the amplitude of the turning movements and the amplitude of the lateral movements at successive operations of the pincers, and manually-operable means for throwing the adjusting mechanism into operation, substantially as described.

7 lasting machine, having, in combination, pincers, means for imparting pulling movements and lateral movements to the pincers, and mechanism operating automatically to vary the amplitude of the lateral movements from a maximum to zero at successive operations of the pincers, substantially as described.

'8. A lasting machine, having, in combination, pincers, means for imparting pulling movements and turning movements to the pincers, and mechanism operating antomatically to vary the amplitude of the turning movements from a maximum to zero at successive operations of the pincers, substantially as described.

9. A lasting machine, having, in combination, pincers, means for imparting pulling movements and lateral movements to the pincers, and adjusting mechanism oper-.

ating automatically to vary the amplitude of the lateral movements at successive operations of the pincers, said mechanism being adjustable to vary the number of operations of the pincers during which itis effective, substantially as described.

10. A lasting machine, having, in combination, pincers, means for imparting pulling movements and turning movements to the pincers, and adjusting mechanism operating automatically to vary the amplitude of the turning movements at successive operations ot' the pincers, said mechanism being adjustable to vary the number of operations of the pincers during which it is eftective, substantially as described.

11. A lasting machine, having, in combination, pincers, means for imparting pulling movements to the pincers, means for imparting lateral movements to the pincers, means for imparting turning movements to the pincers, adjusting mechanism operating automatically to vary the amplitude of the lateral movements at successive operations of the pincers, and adjusting mechanism operating automatically to vary the amplitude of the turning movements at successive operations of the pincers, said mechanisms being adjustable to vary independently the number of successive operations of the pincers during which the adjusting mechanisms are effective to vary the movements controlled thereby between predetermined limits, substantially as described.

12. A lasting machine, having, in combination, pincers, means for imparting pulling, turning and lateral movements to the pincers, and mechanism operating automatically to produce a plurality of series of variations in the amplitude of the turning and "the lateral movements, each series of variamovements, and automatic means for providing proper variation in these movements to last the inside and outside curves of the toe on a right and left shoe, substantially as described.

14. A lasting machine, having, in combination, pincers, means for imparting a pulling movement to the pincers, means under the control of the operator for imparting automatically-varied turning and lateral movements to the pincers, and automatic means for discontinuing the turning and lateral movements after a predetermined number of operations of the pincers, substantially as described.

15. A last-ing machine, having, in combination, pincers, means for imparting pulling, turning and lateral movements to the pincers, mechanism operating automatically to produce a plurality of series of variations in the amplitude of the turning and the lateral movements, each series of variations being adapted to last the upper about one particular portion of a last, and means controlled by the operator to select the series of variations adapted to operate upon any one portion of a last, substantially as described.

ERASTUS E. WINKLEY.

Witnesses ANNIE C. RICHARDSON, WARREN G. OGDEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of I'atents. Washington, D. C.

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