US1021086A

US1021086A - Lasting-machine.

Info

Publication number: US1021086A
Application number: US59845110A
Authority: US
Inventors: Arthur Bates
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1910-12-20
Filing date: 1910-12-20
Publication date: 1912-03-26
Anticipated expiration: 1929-03-26

Description

A. BATES.

LASTING MACHINE.

APPLIOATION FILED APB.3, 19oz RENEWED D110. 20, 1910.

1,021,086. Patented Mar. 26, 1912.

2 BKEBTB-BHEET 1.

A. BATES.

LASTING MACHINE.

APPLICATION FILED Anna, 1902. nzmzwnn no. 20, 1910.

1,021,086. Patented Mar. 26, 1912.

2 SHEETS-SHEET 2.

m fnenrev Mzz/ COLUMBIA PLANMRAPH :0" WASHINGTON- D. C.

UNTTED STATES PATENT OFFICE.

ARTHUR BATES, 0F LEICESTER, ENGLAND, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, 013 BOSTON, MASSACHUSETTS, A CORPORATION OF NEW JERSEY.

LASTING-MACHINE.

Application filed April 3, 1962, Serial No. 101,190.

To all whom it may concern:

Be it known that I, An'rnun BATES, a sub ject of the King of England, and resident of 21 Doncaster road, Leicester, in the county of Leicester, England. have invented certain Improvements in Lasting-Machines, of which the following is a specification.

This invention relates to machines for lastingshoes and particularly to the pincersactuating mechanism of lasting machines in which an upper is worked over a last by means of pincers.

The invention is herein shown as applied to a machine of the type known as the hand method lasting machine, but it is applicable to other types of lasting machines in which pincers are employed.

The object of the invention is to provide improved means for actuating the pincers wherel'iy they may he made to move in different paths according to the different kinds of shoes being operated upon. Tn approaching their gripping position the pincers should move in a plane conforming to the position of the stock to be gripped. In McKay shoes an unlasted portion of upper material adjacent to a tack which has been driven to secure a lasted. portion of upper to the innersole lies quite close to the face of the innersole. This position of the stock which is to be gripped makes it necessary for the pincers to approach their gripping position in a path forming a small angle with the face of the inncrsole in order that the lower pincer-member may pass under the upper material without striking the lining and pushing it outward. The face of a McKay innersole is plane or uninterrupted so that no obstruction is presented to such a movement. It is also desirable that the pincers continue their movement of approach to a point quite close to the edge of the innersole so that they may get an extended grip on the upper material. In welted or Goodyear shoes the conditions under which the pincers work are quite different from those found in McKay shoes. The innersole has a lip or rib on its upper face at a. short distance from its edge and in the lasting operation the upper is pressed against the outer side of this lip and secured in the angle of union between the lip and the marginal portion of the innersole. This causes the unlasted portion of upper material adjacent to the lasted portion to stand Specification of Letters Patent.

Patented War. 26, 1912.

Renewed December 20, 1910. Serial No. 598,451.

outside the lip and nearly perpendicular to the surface of the inner-sole. These conditions make it necessary that the pincers shall approach the upper material to be gripped by a movement in a path which is high enough above the surface of the innersole to pass over the lip without striking it and which abruptly descends close to the edge of the shoe to cause the pincers to inclose the approximately upright edge of the upper material and to position the lower pincer-member between the lip and said upper material. It will now be apparent that the pincers must follow a distinctly different path in approaching the work when lasting Goodyear shoes from that which gives the best results when lasting McKay shoes. The downward movement of the pincers in these paths is controlled, in machines of the type referred to, by a cam and it has heretofore been necessary to employ a different cam for Goodyear work from that which is employed for McKay work.

One of the purposes of this invention is to adapt a machine to last either Goodyear or McKay shoes without removing one cam and substituting another, and a very important feature of the invention consists in providing a lasting machine with means for varying the path followed by the pincers. In the embodiment of the invention herein shown a machine is provided with means for actuating the pincers at one time in a path appropriate for McKay work and with means for actuating the pincers at another time in a different path suitable for Goodyear work. Preferably means is provided which may be adjusted by the operator for causing the pincers to be actuated in one or the other of said paths and this constitutes an important feature of this invention. It will be understood that the movement of the pincers in approaching their gripping position is a combined inward and downward movement and the path followed by the pincers may be varied by changing either the inward or the downward movement. Tn the illustrated embodiment of the invention the variations in the path of the pincers are produced by modifying the time and extent of the downward movement of the pincers, while the inward movement is produced by mechanism which may have a constant throw and the specific construction of which forms no part of this invention. It will of course be understood that the invention is not limited to a machine in which the movement of the pincers toward gripping position is modified by varying the downward component of the movement. As shown the pincers are suspended from the front end of a horizontal lever which may be the usual updraw lever of machines of this type and which at its rear end is acted upon by a cam that may be the updraw cam usually employed for McKay work. The connection between the cam and the rear end of the lever is constructed to transmit upward movement unyieldingly from the cam to the lever, a spring in said connection being arranged to transmit downward movement from the cam for depressing the rear end of the lever yieldingly to uplift the pincers when a low part of the cam becomes operative. In accordance with this invention an auxiliary updraw cam is provided. This auxiliary cam is herein shown as a cam surface formed on the edge of the regular McKay cam block. The updraw lever is provided with an adjustable member adapted to be positioned in the path of the auxiliary cam whereby Said cam, which is higher than the corresponding part of the regular McKay cam, may give to the lever and pincers a downward movement properly timed with relation to the inward movement of the pincers to cause the pincers to follow the path required in approaching their position to grip the upper materials in lasting Goodyear shoes.

It will of course be apparent that because the high part of the auxiliary cam is higher than the corresponding part of the regular McKay cam, the amplitude of the oscillations given to the pincers will be greater when the auxiliary cam is actuated and the pincers will be moved downwardly through a greater distance. It is, however, not desirable that the pincers be moved to a lower level for gripping Goodyear work than for gripping McKay work, and another important feature of this invention relates to mechanism which is herein shown as employed for determining the level to 'which the pincers shall be moved downwardly, but which may be employed for other purposes, as will be readily understood. In carrying out this feature of the invention the updraw lever is adj ustably mounted upon its fulcrum pin by means of an eccentric sleeve which is located between. the lever and its fulcrum and arranged to be adjusted with relation to the lever for vertically moving the lever non-rotatively relatively to its fulcrum. By this means the pincers are adjusted upwardly so that they start in their descent from a higher level, but move to the same level when actuated by the auxiliary cam as when actuated by the regular cam. Preferably the pincers.

means is provided under control of the operator by which the adjusting device may be actuated described to determine the level to which the pincers shall be moved, and, as herein shown, this means is the same a djusting means through which the auxiliary cam is renderd operative or inoperative.

It is found in practice that in McKay work it is desirable for the pincers to move nearer the edge of the sole than in Goodyear work when approaching their gripping position in order that they may get a better grip upon the upper material. One reason for this is that when Goodyear shoes are being lasted on the machine herein shown a reciprocating presser is usually employed for forcing the upper into the angle between the lip and the margin of the innersole and this presser assists the pincers materially in working the upper materials over the last. In lasting McKay shoes the reciprocating presser referred to is not employed and more work, therefore, devolves upon vention herein shown this difference in the position to which the pincers are moved with relation to the edge of the last is provided by adjusting the updraw lever longitudinally. This adjustment varies the initial position of the pincers with relation to the edge of the work and thereafter when they are actuated they will. move inwardly and outwardly between different limits. This longitudinal adjustment of said lever is effected by means of the same eccentric by which the lever is adjusted vertically as above described, the eccentric being so arranged with relation to the fulcrum pin and the updraw lever that the lever is moved longitudinally and also vertically to the desired relative extents by the adjustment of the eccentric. It will now be apparent that the range of the movements of the pincers both downwardly toward the work and inwardly toward the machine may be varied in accordance with this invention and that this variation in the range of move ment of the pincers may be accompanied by a variation in the extent of the movement as in the case of the downward movement described, or it may be made without materially affecting the length of the movement, as in the example of the inward movement, which is preferably substantially constant in extent for both McKay and Goodyear work. The eccentric arranged as described forms a convenient means for varying the range of the movements of the pincers, but the invention is of course not llII1- ited to the means employed for effecting the result.

The described arrangement of the grippers actuating mechanism enables the grippers to be moved in different predetermined paths which are in approximately the same In the embodiment of the in plane and the operator may by suitable adjustments determine the path to be Followed by the grippers in accordance with the shoes to be lasted. In the use of machines of this type the machine, of course, will be stopped with the grippers open so that the shoe may be removed and a new piece of work presented in position to be gripped. This stopping position might be obtained by a special form of clutch, but in practice it has been customary to depend upon the skill of the operator to stop the machine at the right point in its cycle. The arrangement provided by the present invention may be employed for adjusting the grippers to position them for gripping in accordance with the requirements of the particular portion of the shoe to be lasted as well as according to the kind of shoe to be lasted, as has been previously explained. If, for example, the upper of a given portion of a shoe is short the grippers can be lowered or otherwise moved. by the said controlling lever and eccentric sleeve to the desired gripping position for that portion of the shoe.

It is a feature of this invention to provide, in a machine having automatically operated grippers, means for manually adjusting the position of the grippers preliminarily to the automatically eli'ected closing to grip the upper. In the illustrated construction a single adjusting device controls both the operativeness of the auxiliary cam and the position of the eccentric fulcrum sleeve. This arrangement has many advantages, but the invention is of course not limited to a single controlling device for these two parts, nor, obviously, to the presence of both of said parts in the same machine, for the auxiliary cam as well as the eccentric fulcrum sleeve is capable of effecting a useful function when used without the other one of said new parts.

These and other features of the invention will be fully explained in the following description and pointed out in the claims.

In the drawings :Figure 1 is a side ele vat-ion of the upper portion of a lasting machine with my improvements applied thereto, the machine being adjusted for lasting McKay shoes; Fig. 2 is a side elevation of a portion of the pincers-actuating mechanism of the lasting machine, the mechanism being adjusted "For lasting Goodyear shoes; Fig. 3 is a plan view of parts shown in Fig. 2; Fig. 4 is a sectional view taken through the line (L-(L of Fig. 92' Fig. is an end elevation looking at the rear of Fig. 2; Fig. 6 is a central vertical sectional view on the broken line through Fig. 5; F '7 is a perspective view of a part ot a. Goodyear shoe partially lasted. tle portion of upper material next to be gripped by the pincers being shown in section; Fig. 8 is a similar view of a McKay shoe; Fig. 9 is a view of the pincers and a portion of: a Goodyear shoe, the approximate path followed by the pincers in moving from position of rest to position for gripping the upper of such a shoe being indicated in dotted lines; Fig. 10 is a view similar to Fig. 9, showing a. Mc- Kay shoe and the approximate path followed by the pincers in moving to position for gripping the upper of such a shoe; Fig. 1t is a detail view showing the position of the updraw lever with relation to its fulcrum when it. is adjusted for Goodyear work, said figure illustrating in dotted lines the different position of the updraw lever when adjusted for McKay work; Fig. 12 shows the relative positions of the updraw lever and eccentric when adjusted for McKay work.

The pincers, which comprise the lower member or jaw 14 and the relatively movable upper membcr or jaw 16, may be of any usual specific construction and have shanks which extend upwardly through a block 47 that is pivoted by a horizontal pin 52 to the front end of a longitudinally movable bar 50 hearing a roll 55 in position to be engaged by a cam on the main shaft E of the machine. The bar 50 is moved to the right to carry the pincers horizontally toward their gripping position by the cam 5ft. and is moved in the opposite direction to cause the pincers to draw the gripped upper over the innersole by a spring acting through an arm 51. The shanks of the pincers above the block t? are supported by the front end of a lever A by which the pincers are lifted tt'or updrawing the upper and lowered, in time relation with the movement of the overdraw cam 54, into their gripping posi tion. .The updraw lever A is ttulcrumed by a pin F to the frame (it the machine and at its rear end is connected to a cam block I),

having a cam groove E and mounted on the main shaft E The (jOlllKCtlUIl between the lever and the -am block comprises a rod D secured to a slide l) which carries a roll D running in the cam groove E, as shown most clearly in Fig. 6. A block C is mounted to slide freely on the rod 1) and is connected by screws B to the 'lorked rear end of the updraw lever A, as shown in Fig. 3. A. spring I)" is coiled about the rod D and held under compression between the blocks 0 and a nut I). This arrangement provides that movement shall be transmitted unyieldingly from the cam F1 to the updraw lever for raising the rear end of the lever and lowering the pineers while the movement for drawing down the rear end of the lever to uplift the pinccrs is transmitted through the spring D. As has been before suggested, the positively effected downward movement of the pincers toward their gripping position is effected in time relation with the movement of the pincers inwardly or toward the right in Fig 1 so that the path followed by the pincers in approaching their gripping position is determined by the timing of the two cams 54 and E and by the shape of these cams.

The machine as thus far specifically described is substantially as shown and de scribed in United States Letters Patent No. 584,744, June 15, 1897, to which reference may be had for details not mentioned herein.

When the machine is equipped for lasting McKay shoes, in which the innersole has a plane face to which the upper is tacked far enough from the edge to give room for a row of stitches between the tacks and the edge, a cam block E will be employed in which the groove E is shaped to cause the pincers to descend in a path lying quite close to the face of the innersole, substantially as indicated in Fig. 10. This path is made necessary by reason of the position of the portion of upper material to be gripped. As will be seen by referring to Fig. 8, the portion of upper to be seized by the pincers is held in a plane inclined at a small angle to the face of the innersole by the tack which secures the previously lasted portion. The pincers mu st, therefore, approach the upper to be seized in a low path that will carry the lower pincer member 14 under the stock without striking the lining and pushing it back toward the edge of the shoe. For lasting Goodyear shoes a dilferent path for the pincers is required by the fact that the innersole has on its upper surface a lip, as shown in Figs. 7 and 9, and that the upper material is secured to the innersole in the angle of union between the lip and the margin of the inner-sole so that the free edge of the lasted upper material stands approximately perpendicular to the face of the innersole instead of lying nearly parallel with said face as in McKay shoes. This posi tion of the lasted upper material causes the adjacent portion of unlasted material which the pincers next seize to stand nearly upright, as shown in Fig. 7. The pincers are, therefore, required to approach their gripping position in a path which is high enough above the face of the innersole to pass over the lip and which then descends abruptly to position the lower pincer member between the lip and the material to be gripped.

From the above statement of the differences between McKay and Goodyear work it is apparent that the two paths of the pincers required for the two classes of work 1 cannot be obtained from the same cam groove E. Instead, however, of removing the cam block E and replacing it with one that will give a different path for the pincers, as has heretofore been the custom, the present invention contemplates the use, in

addition to the usual cam E, of an auxiliary cam which may be put into operative control of the pincers when desired, the cam E being employed to give the required movements to the pincers when one class of workas, for example, ll lcKay work-is being lasted and the auxiliary cam being employed to give the desired movements to the pincers when the other class of work is being done. The auxiliary cam may be arranged and operatively connected with the pincers in any suitable way. As herein shown, the auxiliary cam is providedby forming upon the cam block E a peripheral cam surface shown as a removable cam plate 6 attached to the block E by screws 6 and pin 6. In this embodiment of the invention the auxiliary cam e is continuously actuated and the updraw lever A is provided with a cooperating member which is movable into and out of position to be acted upon by said auxiliary cam for causing the updraw lever to be actuated in accordance with the shape of the auxiliary cam. To this end a yokeshaped member K embraces by its ends the screws B, B carried by the updraw lever A and is held in place by nuts Z), Z) on said screws with freedom to turn. The yoke has an arm K to which is secured a plate L by bolt m. The bolt has an eccentric portion m which is embraced by the plate L and serves to adjust said plate vertically when the bolt is rotated. The plate carries a roller N which is supported on a pin L extending roarwardly from the plate and having a head standing in a slot in the lower part of the arm K to prevent the plate from turning about the bolt m. A sleeved washer L held in place on the pin L by a nut M, permits the roller N to turn freely about the axis of the pin L. The yoke is adapted to be moved about the pins B, B from the position shown in Fig. 1 into the position shown in F 2 and 6, where it stands in the path of the auxiliary cam e to render said auxiliary cam operative for actuating the updraw lever to move the pincers to ward their gripping position. It will, of course, be understood that the auxiliary cam 6 assumes control of the updraw lever for effecting the downward movement ofthe pincers because said auxiliary cam, acting directly upon the lever, raises its rear end higher than the throw of the cam groove E raises it. This higher movement is rendered possible because of the movable connection which is formed by the plate D, rod D, spring D", and block C between the cam groove E and the lever A. This connection permits the auxiliary cam to raise the lever and block 0 with relation to the plate D and rod D, as shown clearly in Fig. 6.

' For the purpose of moving the yoke K and roller N into and out of operative relation to the auxiliary cam e the yoke is provided withv an arm K to which a rod 0 is connected at O. The rod is in turn connected to the hand lever P, which is pivoted to an extension Q on the fulcrum pin F before mentioned. By moving the hand lever from the position shown in Fig. it to the full-line position shown in Fi 2 the roller N is moved into operative relation to the auxiliary cam 6, after which the pincers will be actuated downwardly toward gripping position by said auxiliary cam, which, in the illustrated embodiment of the invention, is shaped to give the pincer-s the movement desired in lasting Goodyear shoes.

It has already been noted that the auxiliary cam ,2 assumes control of the updraw lever when the roller N is in bearing therewith because it is is formed to raise the rear end of the lever higher than the cam E raises it. It will of course be apparent that this arrangement will normally cause the pincers to be moved downwardly farther than when the cam E is operative for depressing the pincers. This greater downward movement is in excess of that which in practice is desirable and the machine is, therefore, provided with means for compensating for or offsetting the additional move ment produced by the auxiliary cam e. In the embodiment of the invention herein shown this means comprises provision for adjusting the updraw lever vertically with relation to its fulcrum. The direction and extent of this adjustment may, of course, be that required to cause the pincers to be moved downwardly to the same level by the auxiliary cam e as by the cam E, or to a difl'erent level. the lever is herein shown as an eccentric interposed between the lever and its fulcrum pin I. The eccentric is shown in the form of a sleeve surrounding the fulcrum pin and provided with an arm F by which it may be turned to raise or lower the lever.

It will be readily understood that it is advantageous to turn the eccentric for adjusting the lever A at the same time that the roller N is moved toward or from operative relation with the auxiliary cam c. A connection is, therefore, provided in the form of a rod H, which is pivoted at G to an arm F on the eccentric sleeve and at J to an arm K on the yoke K which carries the roller N. By means of this connection the eccentric and roller are adjusted by a single movement of the hand lever I. The extent of the adjustment of the eccentric should in practice bear a definite relation to the throw of the auxiliary cam c, and for facilitating the accurate adjustment of the eccentric and securing the parts in adjusted position means is provided to limit the throw of the hand lever and to hold it at each end of its movement. This means is shown as comprising a bar R having a The means for adjusting forked end B pivoted at R to a projection O 011 the rod 0. The bar extends forwardly at the lower side of the lever stud Q before mentioned and at its front is 0011- nected by a spring S to rod 0. The rod and bar have opposed notches O, R which embrace the stud Q, or sleeve 1) on the stud, and securely hold the parts in the adjusted position shown in Fig. 1 with the roller N in contact with the auxiliary cam e and the eccentric adjusted to raise the lever A. The rod 0 has another notch O to engage the sleeve D and hold the parts in the position shown in Fig. 1 with the roller out of operative relation to the auxiliary cam c and the eccentric adjusted to position the updraw lever for McKay work. It may be here noted that the upward movement of the pinccrs by depressing the rear end of the updraw lever is effected by the inner face of the cam groove E which is operative for this purpose in all adjustments of the machine. WVhen the lever is adjusted upwardly with relation to its fulcrum pin F'-, the auxiliary cam being then operative, the upper limit of the upward movement of the pincers is, of course, raised. The movement of the pincers for updrawing the stock is, therefore, greater when the auxiliary cam e is operative for Goodyear work than when said cam is inoperative and the cam E is operative for depressing the pincers to last McKay shoes.

It will be understood that the adjustment of the eccentric sleeve F moves the lever A non-rotativcly with relation to its fulcrum both vertically, or transversely of its length, and also longitudinally more or less according to the position of the eccentric with relation to the lever and fulcrum pin.

In Figs. 11 and 12 are illustrated on an enlarged scale the different positions of the lever and eccentric with relation to the fulcrum pin F 2 when the parts are adjusted for Goodyear and for McKay work respectively. In Fig. 11 the position of the lever for Me- Kay work is shown in dotted lines and in full lines is shown the altered position occupied by the lever when it is adjusted for Goodyear work. It will be seen from this view that the lever is adjusted longitudinally forward as well as upward when the eccent ic is shifted from position for Me Kay work to position for Goodyear work. This longitudinal adjustment of the lever A turns the shanks of the pincers, and the guide block 457 through which they move, about the horizontal pivot 52, and swings the pincer jaws themselves toward the left in Fig. 1. When the eccentric F and lever A are reversely adjusted for McKay work the pincers are swung toward the right in Fig. 1. This longitudinal adjustment of the updraw lever, therefore, causes the pincers to approach the edge of the shoe more closely in McKay work than they do in Goodyear work. This is advantageous because in Goodyear work auxiliary pressers, indicated at 35, are employed to assist in pressing the upper materials into lasted position, as is explained in the Letters Patent before mentioned, while in McKay work the auxiliary pressers are not used and it is therefore desirable that the pincers obtain a more extended grip upon the upper material.

It will be observed that the different paths followed by the grippers in approaching the work lie in the same vertical plane and that the adjustments effected by the hand lever P change the movements of the grippers and determine what path they are to follow.

It is to be noted that the adjustment of the lever A longitudinally varies the range of inward movement of the pincers, for it changes the extreme positions or limits from and to which the pincers move inwardly, although not necessarily changing the extent of the inward movement. The adjustment of the lever A transversely of its length varies the range of the downward movement of the pincers for it changes the limits between which the pincers are moved by the cam E or the cam e.

In the operation of the mahine when it is desired to last Goodyear shoes after the machine has been used for lasting McKay shoes the hand lever P will be moved from the position shown in Fig. 1 to the position shown in Fig. 2, whereby the roller N is put into operative relation to the auxiliary cam 6 so that said cam takes control of the downward movement of the pincers. The same adjustment of the hand lever also turns the eccentric sleeve F from the position shown in Fig. 12 to the position shown in full lines in Fig. 11, whereupon the updraw lever A is adjusted upwardly a distance to compensate for or offset the additional downward movement which will be effected by the auxiliary cam e as compared with the came E. This movementof the eccentric sleeve F also adjusts the updraw lever longitudinally toward the rear end of the machine and so positions the pincers at a slightly greater distance from the edge of the shoe so that in moving to their gripping position they will not approach as near the edge of the shoe as they approached when lasting McKay shoes. The spring S causes the rod 0 and bar R to embrace the sleeve P snugly, said sleeve being received in the notches O and R whereby the parts are retained in their adjusted position. The presser 35 will also be rendered operative, whereupon the several parts of the machine may be actuated for lasting Goodyear shoes, as described in the Letters Patent above mentioned, the pincers following in their downward movement substantially the path inclicated in Fig. 9. The upward movement of the pincers will, of course, be effected by the inner face of the cam groove E acting through the spring D and, because the I updraw lever occupies a higher position than when lasting McKay shoes, this upward movement of the front end of the lever and the pincers will be slightly greater than the corresponding movement when the machine is adjusted for lasting McKay shoes. Then it is desired to resume the lasting of McKay shoes the several parts will be restored to the positions shown in Fig. 1. It is to be noted that the hand lever P may be manipulated at any time during the operation of the machine for effecting the appropriate adjustment of the parts for McKay or Goodyear work.

It will be obvious that the movement of the pincers inwardly and downwardly toward gripping position may be varied to cause the pincers to follow the desired paths by modifying either the inward or the downward movement, and although I have herein shown means for changing the path by modifying the downward movement, it will be understood that the invention is not limited to this way of changing the path of the pincers. If in lasting any particular shoe or any particular portion of a shoe the upper is unusually short so that it is difiicult for the pincers in their normal position to obtain a satisfactory grip upon it, the pincers may be lower and moved toward the edge of the last by means of the hand lever P operating through the eccentric fulcrum sleeve to lower and move forwardly the front end of the updraw lever. This move ment of course not only lowers the pincers, but rocks the pincer rods about their fulcrum in the block l? to swing their lower ends toward the body of the machine. It will also be understood that while I have herein shown means for rendering operative or inoperative a pincer-actuating cam and connected means for adjusting the updraw lever with relation to its fulcrum, it is clearly not essential to the invention that said two means be connected or that they be used together.

Having explained the nature of the invention and fully described one form of mechanism embodying the same, I claim as new and desire to secure by Letters Patent of the United States 1. In a lasting machine having'pincers for holding the upper, a cam having connection with the pincers to impart a downward movement thereto, an auxiliary cam, and means for rendering said auxiliary cam operative at times to impart downward movement to the pincers, substantially as described.

2. In a lasting machine having pincers for holding the upper, a dual cam comprising an internal cam having connection with the pincers to impart a downwardmovement thereto and an auxiliary peripheral cam arranged to have connection with the pincers to impart a different movement thereto substantially as described.

3. In a lasting machine having pincers for holding the upper, a dual cam comprising a peripheral cam surface and an internal cam surface, and connections therefrom for actuating the pincers, in combination with means for rendering one of the cam surfaces inoperative, substantially as described.

4. In a lasting machine, pincers for engaging the upper and actuating mechanism for the pincers including a dual cam comprising an internal cam surface for i1nparting a downward movement to the pincers, and a peripheral cam surface, combined with means for rendering the latter cam surface operative or inoperative for imparting movement to the pincers.

5. In a lasting machine having pincers for holding the upper, and a lever for actuating the pincers the combination of an cecentrically bored sleeve ournaled in the pincers actuating lever, a fixed pivot pin passing through the bore of said sleeve, and means for adjusting said sleeve whereby the position of the lever with relation to the fulcrum, may be varied for changing the movement imparted by the lever to the pincers.

(3. In a lasting machine, pincers for pulling an upper over a last, a lever with which the pincers are connected, and means for actuating said lever, in combination with means for shifting said lever non-rotatively with relation to its fulcrum.

7. In a lasting machine, pincers for pulling an upper over a last, a lever with which the pincers are connected, and means for actuating said lever, in combination with means under the control of the workman and arranged to be operated while the machine is running for shifting said lever nonrotatively with relation to its fulcrum.

8. In a lasting machine, pincers for pulling an upper over a last, a lever with which the pincers are connected, and means for actuating said lever, in combination with means for adjusting said lever in the direction of its length.

9. In a lasting machine, pincers for pulling an upper over a last, a lever with which the pincers are connected, and means for actuating said lever, in combination with means for moving said lever as a whole in a direction transverse to its length.

10. In a machine of the class described, pincers, means for actuating said pincers to effect a normal, predetermined movement thereof toward gripping position, and means under the control of the workman for varying the direction of said movement without changing substantially the plane in which the movement takes place.

' 11. In a lasting machine, pincers for working an upper over a last, a lever to which the pincers are connected, means for actuating said lever with a normal, predetermined stroke, and means under the control of the workman for varying said normal stroke of the lever to change the lower limit of movell'lGIlt of the grippers without changing substantially the plane in which the movement of the pincers takes place.

12. .In a. lasting machine, pincers for gripping an upper and pulling it over a last, a lever with which the pincers are connected, means for actuating the lever to move the pincers to and position to grip the upper, and means adapted to be rendered operative or inoperative for imparting a different positioning movement to the pincers.

13. In a lasting machine, pincers for gripping an upper and pulling it over a last, an actuator with which said pincers are connected, means for moving said actuator unyieldingly to put the pincers in position to grip the upper, and means under the con:

trol of the workman for varying said movement, whereby the pincers may be operated in dttferen t paths.

let. In a lasting machine, the combination with pincers for gripping and pulling an upper, of actuating means for moving the pincers in a prescribed plane into gripping position, and means arranged to be rendered operative at times for changing within substantially said plane the path normally followed by the pincers in moving into gripping position,

15. In a lasting machine, the combination with pincers for gripping and pulling an upper, of actuating mechanism having provision for moving the pincers in diili'erent paths within substantially the same plane toward position for gripping the upper, and means under control of the operator for detel-mining the path in which the pincers shall move.

1(3. In a lasting machine, pincers for pull- .ing an upper over a last, means for support ing the pincers, two means either of which is adapted to actuate the pincers, and means for remlering one of said actuating means operati ve or inoperative.

17. In a lasting machine, pincers for pulling an upper over a last, means for supporting the pincers. two cams arranged to be used alternatively for moving the pincers dtm'nwardly into their gripping position,

and means forrendering either cam opcra-,

live as desired.

18. In a lasting machine, pincers for pull ing an upper over a last, a lever by which said pincers are sumported, a cam having a surface for rocking said lever in one direction, and two differently shaped cam surfaces arranged to be used alternatively for rocking the lever in the opposite direction.

19. In a lasting machine, pincers for pulling an upper over a last, means for moving said pincers inwardly and means for moving said pincers downwardly toward gripping position, combined with means for varying one of said movements to change the path of the pincers.

20. In a lasting machine, pincers for pulling an upper over a last, means for moving said pincers inwardly and means for moving said pincers downwardly toward gripping position, one of said means comprising cams arranged to be used alternatively, for effecting and determining the extent of the final movement of the pincers in one of said directions, and means for rendering one or the other of said alternative cams operative.

21. In a lasting machine, pincers for pulling an upper over a last, a lever, a cam, a device adapted to connect the lever operatively with the cam, whereby rotative movement of the lever about its fulcrum may be effected, and a device for adjusting the lever non-rotatively with relation to its fulcrum,

combined with means for shifting said connecting and said adjusting devices together, and means for relatively adjusting said two devices.

22. In a lasting machine, the combination with pincers, of means for actuating the pincers toward and from position to grip the upper, said actuating mechanism comprising two cam surfaces to be used alternatively for causing the pincers to follow different paths when approaching their gripping position.

23. In a lasting machine, pincers for pulling an upper over a last, and automatic actuating mechanism therefor comprising means for moving the pincers inwardly toward position for gripping the upper, combined with means for varying the range of said movement of the pincers.

24. In a lasting machine, pincers for pulling an upper over a last, means for positively moving the pincers downwardly toward position for gripping the upper, and means under control of the operator for definitely changing the range of said movement of the pincers.

25. In a lasting machine, pincers for pulling an upper over a last, devices for moving the pincers downwardly and inwardly toward position for gripping the upper, and means for varying the range of said movement of the pincers.

26. In a. lasting machine, the combination with grippers and means arranged to be used alternately for operating the grippers in different predetermined paths in approximately the same plane, and means under control of the operator for determining which path the grippers shall follow.

27. In a lasting machine having pincers for gripping an upper and pulling it over a last, means for actuating the pincers in a predetermined plane downwardly and outwardly toward gripping position at the edge of the shoe, and means under control of the operator for changing within substantially the said plane the path of the movement toward gripping position.

28. A machine for lasting either McKay or Goodyear shoes having, in combination, grippers and mechanism for actuating the grippers to grip the upper and pull it over a last, said machine having provision for changing the position reached and the path followed by the grippers in approaching their gripping position according as the work is a McKay or a Goodyear shoe.

29. A machine for lasting either McKay or Goodyear shoes having, in combination, grippers and mechanism for actuating the grippers to grip the upper and pull it over a last, and means under control. of the operator for changing the path of the grippers in approaching the shoe and the position for gripping the upper according as a McKay or a Goodyear shoe is to be lasted.

30 A machine for lasting either McKay or Goodyear shoes having, in combination, grippers and mechanism for actuating the grippers in a curved path toward position to grip the upper and then reversely actuating them to pull it over a last, and means under control of the workman for changing the direction of the curvature of the path of the grippers to embody motions characteristic of McKay work or characteristic of Good- I year work.

31. A lasting machine having, in combination, grippers, automatically actuated means for operating them to pull an upper, and manually controlled means arranged to be used while the automatically actuated means is continuously running for chang ing the gripping position of the grippers in the direction of their pulling movement.

32. A lasting machine having, in combination, means for positioning a shoe, grippers, automatically actuated means for operating them to grip and pull an upper, and manually controlled means arranged to be used while the automatically actuated means is continuously running for lowering or raising the grippers to adapt them to the length of the portion of upper to be gripped.

33. A machine of the class described having, in combination, means for positioning a shoe, grippers, automatically actuated means for operating them to work an upper over a last, and means adapted to be employed by the operator, while the automatically actuated means is running without interruption, for positioning the grippers with relation to the edge of the last and the plane of the last bottom for the purpose described.

34. A lasting machine having, in combination, grippers for working an upper over a last, manually controlled means to change the gripping position of said grippers, and automatically operating mechanism for repeatedly actuating the grippers during continuous operation of the machine to work the upper over the last, said means for changing the gripping position being adapted for manipulation during said continuous operation of the machine.

35. Alasting machine having, in combination, means for positioning a shoe, grippers for working the upper over the last, means for adjusting the gripping position of the grippers, and automatically operating mechanism for repeatedly actuating the grippers during continuous operation of the machine,

said adjusting means being arranged for manipulation While the machine is running to cause the upper to be gripped at difi'erent partsof the shoe more or less near to the edge of the last.

36. A lasting machine having, in combination, means for positioning a shoe, grippers guided in a pivot block for movement toward and from the last bottom, means for adjusting the grippers obliquely downwardly and inwardly toward the edge of the last to adapt them to grip short uppers, and power driven means for actuating the grippers to work the upper over the last.

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

ARTHUR BATES.

Witnesses:

ARTHUR E. JERRAM, T. S. SI-IONLES.

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