US2323346A - Machine for use in the manufacture of shoes - Google Patents

Description

y 1943- A. R. MORRILL' 2,323,346

MACHINE FOR USE IN THE MANUFACTURE OF SHOES Filed Nov. 28, 1940 I 4 Sheets-Sheet l A. MORRILL 4 Sheets-Sheet 2 MACHINE FOR USE IN THE {MANUFACTURE OF SHOES Filed NOV. 28, 1940 July 6, 1943.

. 0 \J J o T 2 \n u o v 3 NH 1 MY 5 Q A W M m o L L o 6 O. 0 w 6 v J IV, 1. Mr y 4 0 www a Wffzze's' JWW July 6, 1943. A, R. MORRILL MACHINE FOR USE IN THE MANUFACTURE OF SHOES 4 She ets-Sheet 5 Filed Nov. 28, 1940 a o -my 1943- A. R. MORRILL 2,323,346

MACHINE FOR USE IN THE MANUFACTURE OF SHOES Filed Nov. 28, 1940 4 Sheets-Sheet 4 Patented July 6, 1943 MEACHINE FOR USE IN THE MANUFACTURE OF SHOES Alfred E. Merrill, Beverly, Mass., assignor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application November 28, 1940, Serial No. 367,587

36 Claims.

' The present invention relates to machines for use in the manufacture of shoes and is designed primarily as an improvement in the shoe supporting, shoe feeding and controlling means of automatic machines of the type illustrated in the patent to Topham and the present applicant No. 1,616,714, dated Februaiy 8, 19257, and in applicants prior Patent No. 1,952,770, dated March 27, 1934.

Certain features of the means for supporting the lasted shoe and of clamping it in position are capable of advantageous use in the shoe supporting jacks of other types of shoe making machines.

In machines of the type illustrated and described in the patents above referred to, a lasted shoe is supported in the machine by means of a jack comprising a frame provided with suitable shoe supporting devices and this jack is controlled by automatic mechanism during the operation of devices acting along the sole margin of the supported shoe in such a manner as to present the shoe properly to the operating means and to feed the sole margin of the sho past the operating means. The shoe feeding devices of this'automatic mechanism comprise a pattern cam and lever and link connections between the cam and the jack frame, a link being provided in the connections having a pivotal connection at one end with the jack frame adjacent the point on the 3 jack at which the toe of the lasted shoe is supported. This construction and arrangement of parts has been found to be satisfactory in performing operations on a shoe extending along the shank and around the forepart of the shoe from one end of the heel breast line to the other. This construction and arrangement of parts, however, does not permit an operation along the margin of the shoe completely around the shoe as, for instance, the operation of sewing a welt to an insole and upper around the heel portion of a shoe, as well as around the forepart and along the shank. Accordingly, an object of the present invention is to provide a shoe supporting jack and actuating and controlling mechanism therefor for use in a machine of the type disclosed in the patents above referred to which will permit a rotation of the jack in excess of a complete rotation of 360 so that an operation on a shoe may be performed in machines of this type extending completely around the sole margin of the shoe.

Other objects of the invention are to provide a shoe supporting jack for use in machines of the type disclosed in the patents above referred to or in shoe making machines of other types having a simplified and improved construction and arrangement of parts to facilitate the location of a lasted shoe on the jack in proper position, regardless of its size, the clamping of the shoe securely in position, and the unclamping of the shoe after completion of the-operation on the shoe.

With the above objects in view, a feature of the present invention contemplates the provision in a machine of the type disclosed in the patents above referred to of a member in the jack feeding mechanism connected to the jack frame in such a manner as to permit a rotation of the jack in excess of 360 and located outside of the path of movement of the shoe supporting means during such rotation. In the embodiment of this feature of the invention hereinafter described, the connection between this member and the jack frame is in the form of a bearing surrounding a portion of the jack frame in which bearing the jack frame may rotate. As in the machines of the patents above referred to, the frame of the jack hereinafter described is mounted at its lower end, which is the end remote from the means for operating on the margin of a shoe, upon a support so as to be capable of rotating about an axis perpendicular to the sole surface of a shoe on the jack and also of swinging laterally, and in order to permit a free rotation of the jack in excess of 360, the bearing above referred to is located on the frame between the shoe supporting means and the support for the frame. In the illustrated construction, the member which is located outside of the path of movement of the shoe supporting means, and which is providedwith a bearing in which the jack frame may rotate, takes the place of the jack connecting link of the machine of the patents referred to, and like those links, connects the jack with the pattern cam actuated lever of the jack feeding mechanism.

The features of the present invention relating to the means for supporting the lasted shoe and for clamping it in position on the jack contemplate a simplified and improved construction and arrangement of adjustable heel and toe supports and simple and efficient means actuatedfrom a jacking lever for clamping the shoe on the jack, for locking the various parts of the shoe supporting and clamping means in position and, upon a subsequent movement of the jacking lever, for releasing said various parts, all as hereinafter described and defined in various degrees of breadth in the claims.-

The several features of the present invention,

and the advantages secured thereby, will be readily understood by those skilled in the art from the following description taken in connection with the accompanying drawings in which is illustrated a shoe supporting jack structure and jack actuating mechanism, together with so much of an automatic shoe machine as is necessary to show the connection of the several features of the invention therewith.

Referring to the drawings, Fig. l is a view in front elevation of the complete automatic shoe machine with the shoe supporting jack and jack actuating mechanism of the present invention; Fig. 2 is a view in side elevation of the machine illustrated in Fig. 1, with a portion of the base of the machine broken away to show underlying parts; Fig. 3 is a detail plan View of the shoe supporting jack; Fig. 4 is a detail longitudinal sectional view of the shoe support of the j ack, the upper end of the jack frame and a portion of thejack connecting link of the jack feed ng mechanism; Fig. 5 is an underneath plan view of the parts illustrated in Figs. 3 and 4; Fig. 6 is a detail cross-sectional view on a plane indicated by the line 6-5 of Fig. 4; Fig. '7 is a view similar to Fig. 4, but illustrating a lasted shoe in clamped position on the jack; Fig. 8 is a detail sectional View illustrating the principal parts shown in Fig. 7, but on a larger scale; Fig. 9 is a detail cross-sectional view taken on the plane indicated by the line 9-9 of Fig. 8; and Fig. 10 is a detail sectional view taken on the plane indicated by the line I0l0 of Fig. 8.

With the exception of the jack frame with its shoe supporting means and the jack connecting link of the jack feeding mechanism, the machine illustrated in Figs. 1 and 2 is the same in the construction, arrangement and mode of operation of its various parts as the machine disclosed in applicants prior application Serial No. 364,223, filed November 4, 1940. The jack frame is indicated at l2 and is supported at its lower end remote from the point of operation so as to be capable of rotating and swinging laterally upon a horizontally extending arm l4 of the jack supporting structure. The arm I4 is mounted at its rear end to swing vertically upon a lever or frame Hi. The frame It is mounted to swing about a substantially vertical axis upon a lever or frame I8, which in turn is pivotally mounted at its lower end in the base of the machine so as to be capable of swinging about a horizontal axis. As in the machine of the application above referred to, these parts are so arranged as to permit free rotational and swinging movements of the jack, and to permit forward and back, or roll tipping movements, and longitudinal, or pitch tipping movements, to be imparted to the jack.

Longitudinal pitch tipping movements, forward and back, or roll tipping movements, rotating movements, and feeding movements are imparted to the jack during the operation on a shoe by connections actuated from cams on a pattern cam shaft indicated at 20. The longitudinal pitch, the roll, the jack rotating and the jack feeding cams are indicated respectively at 22, 24, 26 and 28, the connections from the cam 22 consisting of a cam lever 35] and connecting rod 32, the connections from the cam 24 consisting of a camlever 34 and connecting rod 36, the connections from the cam 26 consisting of the cam lever 38, a pulley 39 actuated from the cam lever by a gear segment and pinion, and a cord 46 which is secured at one end to the pulley 39 and after passing over suitable pulleys and around a pulley at the lower end of the pack frame, is connected at its other end to a weight 42, and the connections from the cam 28 including a feed lever 44 and a link 46 connecting the forward end of the feed lever with the jack frame, as hereinafter described.

During the operation on the shoe, the jack is yieldingly supported through connections which include a vertically arranged supporting rod 48 pivotally connected at its upper end to the under side of the arm I4 and at its lower end to a horizontally arranged lever 59 which is acted upon by springs, one of which is indicated at 52, to force the jack yieldingly upwardly against the work. A tension spring 54 is connected between the upper end of the rod 48 and a downward extension of the jack frame below the supporting arm l4 and tends to swing the upper end of the jack outwardly to maintain the shoe in the proper lateral position with relation to the devices which act along the shoe margin. For moving the jack into the out of operating position, there is provided a toggle connection comprising pivotally connected arms 56 and 58, one of which arms is pivotally mounted on the lever 50 and the other on the base of t e machine. Mechanism, not herein illustrated, but f 1y disclosed in the application above referred to, breaks the toggle connection to permit the jack to be moved upwardly upon jacking the shoe, a d upon stopping the machine, acts to straigh en the toggle and thereby move the shoe d nwardly and cause it to be moved outwardly away from operating devices.

Coming now to the constructions which embody the several features of the present invention, the jack frame I2 is provided at its upper end with a shoe supporting portion 60 which is rigidly mounted on the frame to rotate with the frame. To secure the shoe supporting portion 60 to the upper end of the jack frame I2, the shoe supporting portion 60 adjacent the end which supports the toe of the shoe is provided with a downwardly extending stud 62 which is received in a vertical bore in the upper end of the frame l2 and is secured therein by cross pins 64. The shoe supporting portion 60 extends laterally from the upper toe supporting end of the frame I2 and the frame is curved to one side near its upper end so that the vertical axis about which the frame rotates on the supporting arm l4 passes through the shoe supporting portion 60 and through a shoe supported on the jack approximately midway between the heel and toe of the shoe. To permit the jack, with its shoe supporting portion, to rotate freely in excess of 360, the jack frame is provided with the ball portion 66 of a ball and socket joint by means of which the jack is connected to the link 46 extending from the jack to the feed lever 44. The ball portion 66 of the ball and socket joint is conveniently formed by the two halves of a ring surrounding the stud 62 of the shoe supporting portion of the jack and rigidly secured to the stud by the screws 68 (see Fig. This portion of the joint connecting the jack with the link 46 is thus located between the shoe supporting portion of the jack and the arm l4 in which the lower end of the jack frame is rotatably mounted. The cooperating socket in the link 46 forms a bearing in which the jack frame may rotate and complete rotation of the jack is permitted by reason of the location of the point of connection of the link with the frame between the shoe supporting portion of the jack and the support l4 and by reason of the fact that the link 46 is shaped to extend downwardly and pass below the shoe supporting portion 60 of the jack and be out of the path of movement of this portion of the jack during the complete rotation of the jack frame. By reason of this construction and arrangement of the connections for imparting feeding movements to the jack, the shoe can be moved and rotated so as to cause the point of operation of the devices operating on the shoe to pass into the curves at the shank portion of the shoe and completely around both the toe and heel portions of the shoe.

The means for supporting the shoe on the jack comprises a toe rest and a heel support, the toe rest being mounted on the jack frame so as to be capable of a vertical movement only heightwise of the shoe and the heel support being movable towards and from the toe rest to accommodate shoes of different sizes.

The toe rest is indicated at Ill and comprises a block mounted at its forward end on the portion 60 of the jack frame to swing about a horizontal pivot I2. The body portion of the block is provided with a convexly curved padded surface upon which the toe of the shoe rests and is guided during its up and down movements by the side walls of a recess 14 in the portion 50 of the jack frame and by a longitudinal rib I6 projecting downwardly from the blockinto a slot formed in the bottom of the recess I4. The means for vertically adjusting the toe rest to accommodate shoes of different sizes will be hereinafter de scribed.

To locate the shoe in predetermined longitudinal position on the jack, a fixed toe gage 1B is 9 provided consisting of a block secured to and extending upwardly from the portion 6%] of the jack frame and provided with a slot through which a forward portion from the block of the toe rest projects.

In the jack illustrated, the toe portion of the shoe is also located and held in proper position on the jack by means of toe grips or clamps,

which toe grips are arranged to move towards and from each other and to engage opposite sides of the toe portion of a shoe. Each toe grip consists of a substantially vertically arranged plate 80 provided with 9. depending stud fitted to rotate in a block 82 which in turn is pivotally mounted on the portion of the jack frame to swing about a substantially horizontal axis indicated at 84. Each plate 80 is acted upon by a spring 86 which is secured at its lower end. to the portion 60 of the jack frame and at its upper end engages the plate 89 at the rear of its pivot stud l 82. When no shoe is on th jack, the toegrips are held yieldingly pressed towards each other by means to be hereinafter described and when in this position, as indicated in Fig. 3, the plates BI] are held by the springs 86 with their forward edges swung towards each other. To yieldingly press the toe grips towards each other and to connect the grips so that they move together, each block 82 is acted upon by a plunger 88 which is pressed upwardly by a spring 9!! and which is provided with rack teeth engaging a pinion shaft 92 extending horizontally across the portion 60 of the jack frame and held against longitudinal movement while being permitted to rotate by a cross pin 94 engaging a circumferential groove in the inion shaft. When a shoe is placed on the jack and moved forwardly to bring the end of the toe of the shoe against the toe gage I8, the plates Bil of the toe grips by contact with the shoe are swung about the pivot studs 82 so as to fit against the sides of the toe of the shoe and. the toe grips are moved bodily away from each other. The toe grips are thereafter forced firmly against the shoe and locked in position by mechanism operated from the packing lever, as will be hereinafter described.

The heel support comprises a slide 96 mounted to move towards and from the toe rest in guideways formed on the under side of and in rearwardly projecting side rails of the shoe supporting portion 60 of the jack frame. Upon the slide 96 is pivotally mounted a last pin carrier 38 provided with an upwardly projecting last pin to en ter the last pin hole of a shoe last. The last pin carrier 88 is fitted into a vertical slot formed in the rear end of the slide 96 (see Fig, 9) and is mounted upon a horizontal pin I00 so as to be capable of a tilting movement to press the toe of a shoe downwardly against the toe rest. The lower portion of the last pin carrier 98 is slotted to receive an actuating arm I62 which is pivotally supported at its upper end upon the pin I 00. At one side of the arm IN, the last pin carrier at its lower end is provided with ratchet teeth, indicated at I04, arranged to be engaged by an actuating pawl I66 pivotally mounted upon the arm I82. A spring I61 interposed between the downwardly projecting arm of the pawl and the bottom of the slot in which the last pin carrier is located tends to hold th pawl I06 in engagement with the ratchet I04 and a swinging movement of the arm I 02 in a clockwise direction tilts the last pin carrier in a direction to force the toe of the shoe against the toe rest. After being so tilted, the last pin carrier is locked in position by means of a holding pawl I 08 pivotally mounted on the slide 96 and arranged to engage ratchet teeth on the lower end of the last pin carrier on the opposite side of the arm I212 from the ratchet teeth Hid. A spring Iii interposed between the downwardly projecting arm of the pawl I08 and the bottom of th slot in the slide 96 tends to hold the pawl !08 in engagement with its coopcrating ratchet. A pin H2 projects from the arm 82 near its lower end in position to engage the downwardly projecting arm of the pawl I08 when the arm I 92 is swung in a counterclockwise direction and lift the pawl I 68 from its cooperatingratchet. A counterclockwise movement of the arm 362 also serves to bring an upwardly and forwardly projecting arm of the pawl I06 into engagement with the bottom of the slot in the slide 96 and lifts the pawl I from the ratchet I04. A movement of the arm I (22 in a counterclockwise direction, if of sufficient extent, can thus be utilized to release the last pin carrier and leave it free to tilt. The actuating pawl I06 tilts the last pin carrier in a clockwise direction. To tilt the last pin carrier in a counterclockwise direction, while unengaged by the actuating and holding pawls, a plunger H4 is mounted in the slide 96 and'is pressed upwardly by means of a spring Ht: into engagement with a shoulder on the last pin carrier 88. When no shoe is on the jack, this spring-pressed plunger l It holds the last pin in a position to permit the ready application of a shoe to the jack, as illustrated in Fig. 4.

After a lasted shoe is placed upon the last pin carrier 98, the heel supporting slide 96 is moved towards the toe rest to bring the toe of the shoe into engagement with the toe gage 18, as illustrated in Fig. 7. To lock the heel supporting slide against movement away from the toe rest, a member I I5 provided with ratchet teeth is mounted on the under surfac of the shoe supporting portion 68 of the jack frame and a locking pawl II 3 to cooperate with the ratchet teeth of the member I I6 is pivotally mounted in the forward end of the heel supporting slide. The pawl is acted upon by a spring [20 which tends to hold the pawl in engagement with the member I I6. The pawl is moved out of engagement with the member H6 so as to release the slide, in unjacking the shoe, by means of a jacking lever I 22 pivotally mounted upon a pivot pin I24 in the forward end of the heel supporting slide 96. To cause the pawl to be actuated by the lever, the pawl is pivotally mounted upon the hub of the lever and is provided with a downwardly projecting lug I26 arranged to be engaged by a pin l28 projecting from the side of the jacking lever I22. The pin I28 also serves as a convenient means for supporting the spring I20 which is coiled around the pin and has one end in engagement with the pawl II 8 and the other end anchored in the jacking lever.

The locking pawl H8 and ratchet toothed member IIE are also utilized to force the toe grips firmly against the side of the shoe and lock them in position. To this end, the member III; is in the form of a slide mounted to move in a guideway formed in the shoe supporting portion 60 of the jack frame and is provided at its forward end and on its upper surface with a rack I30 arranged to mesh with the pinion shaft 92 which is connected with the toe grips, as hereinbefore described. Movement of the toe grips away from each other when a. shoe is placed on the jack imparts a forward movement to the slide I I 6, which movement is permitted by reason of the fact that at this time the pawl H8 is out of engagement with the ratchet teeth of the slide IIS, as indicated in Fig. 4. To move the pawl II8 into engagement with the ratchet teeth of slide H6 and impart a rearward movement to the slide so as to press the toe grips firmly against the shoe and lock them in position, the hub of the jacking lever I22 is provided at each end with an eccentric portion and the pawl H8 is formed in two parts held together by a screw I32 (see Fig. 10) and each part is provided with a bearing fitting an eccentric on the hub of the jacking lever. As will be apparent from an inspection of Figs. 4, '7 and 8, a movement of the jacking lever in a counterclockwise direction will cause the pin I23 to engage the lug I26 of the pawl and move the pawl out of engagement with the slide II 6 while a return movement of the jacking lever in a clockwise direction will move the pin I28 away from the lug I26 and permit the spring I20 to move the pawl into engagement with the ratchet teeth of the slide II6 and thereafter the eccentric hub portions of the jacking lever will cause the pawl to impart a rearward movement to the slide. A pin I34 (see Figs. 3 and projecting from the shoe supporting portion 60 of the jack frame into a slot in one side of the slide II6 serves to limit the movement of the slide in both directions.

In addition to moving the locking pawl II 8 into and out of locking position to lock and release both the heel supporting slide and the toe grips, the jacking lever I22 is also utilized to tilt the last pin carrier so as to force the toe of the shoe into clamped condition against the toe rest during continued movement of the lever after looking the heel supporting slide andupon a subsequent movement in the reverse direction, to release the last pin carrier. To enable the jacking lever to perform these operations, it is connected by a link I30 to the lower end of the actuating arm I02 hereinbefore described, the arrangement being such that the link I36 and jacking lever I22 form a toggle which, when straightened, as indicated in Figs. '7 and 8, imparts a clockwise movement to the arm I02 and when broken, as indicated in Fig. 4, imparts a counterclockwise movement to the arm. When the parts of the jack are in open position to receive a shoe, the heel supporting slide 96 has been moved away from the toe rest, as indicated in Fig. 4, and the jacking lever has been given a sufficient movement in a counterclockwise direction to move the locking pawl H8 out of engagement with the slide H6 and to move the arm I02 a sufficient distance to disengage both pawls I06 and I08 from the last pin carrier. A pin I38 (see Fig. 5) projecting from the portion 50 of the jack frame into the path of the heel supporting slide serves to limit the movement of the slide away from the toerest. After the heel supporting slide has been moved forwardly a sufficient distance to bring the toe of the shoe into engagement with the toe gage 18, a movement of the jacking lever #22 in a clockwise direction actuates the locking pawl I i8, as hereinbefore described, and also releases the pawl I98 for engagement with the last pin carrier and actuates the pawl I65 to tilt the carrier so as to force the toe of the shoe against the toe rest. If desired, short additional back and forth movements may be imparted to the jacking lever to tilt the last pin carrier still further, the last pin carrier being held in its advanced positions by the holding pawl I53. To permit a movement of the jacking lever to a position in which the toggle formed by the lever and by the link A35 is fully straightened, the link I36 has a pin and slot connection with the lower end of the actuating arm I92, 3, pin I09 projecting from the lever through a slot in the link and a comparatively heavy spring I42 being located in a recess in the link and arranged to bear against the pin.

As has been stated, the toe rest I0 is vertically adjustable to accommodate shoes of different sizes. To enable this vertical adjustment to be made automatically as the shoe is placed position, a connection between the toe rest and the heel supporting slide is provided, which connection, as illustrated, consists of a sliding member I44 pivotally connected at its rear end to the rear portion of the heel supporting slide 96 and having its forward end somewhat enlarged and rounded and resting on a straight surface extending beneath the rib 76 of the toe rest. The lower surface of the rib I6 is slightly convex, and with this surface the rounded forward end of the slide I44 cooperates as a wedge to raise the toe rest as the heel support is moved towards the toe rest to bring the toe of the shoe into engagement with the toe gage l8. As will be apparent from an inspection of Figs. 4 and "I, the height to which the toe rest is raised will depend upon the distance to which the heel supporting slide is moved in bringing the toe of the shoe against the toe gage l8, which distance obviously depends upon the size of the shoe being operated upon.

The nature and scope of the present invention having been indicated and constructions embodying the several features of the invention having been specifically described, what is claimed is:

1. A machine for use in the manufacture of shoes having, in combination, means operating along the bottom margin of a shoe, a jack comprising a frame, a shoe support rigid with the frame, a frame support on which the frame is mounted to rotate around an axis substantially perpendicular to the sole surface of a shoe supported on the jack, and mechanism for moving the jack frame to feed the shoe past the operating means comprising an actuating member located outside of the path of movement of the shoe support, and a connection between the member and the jack frame permitting a rotation of the jack in excess of 360.

2. A machine for use in the manufacture of shoes having, in combination, means operating along the bottom margin of a shoe, a jack cornprising a frame, a shoe support rigid with the frame, a frame support on which the frame is mounted to rotate around an axis substantially perpendicular to the sole surface of a shoe supported on the jack, and mechanism for moving the jack frame to feed the shoe past the operating means while permitting a rotation of the jack in excess of 360 comprising an actuating member provided with a bearing for a portion of the frame between the shoe support and the support for the frame in which bearing the frame may rotate.

3. A machine for use in the manufacture of shoes having, in combination, means operating along the bottom margin of a shoe, a jack comprising a frame, a shoe support rigid with the frame, a frame support on which the frame is mounted to rotate around an axis substantially perpendicular to the sole surface of a shoe supported on the jack, and mechanism for moving the jack frame to feed the shoe past the operating means while permitting a rotation of the jack in excess of 360 comprising an actuating member located outside of the path of movement of the shoe support and provided with a bearing for a portion of the frame in which bearing the frame may rotate.

4. A machine for use in the manufacture of shoes having, in combination, means for operating along the bottom margin of a shoe, a jack comprising a frame, a shoe support rigid with the frame, a frame support on which the frame is mounted at its end remote from the point of operation of the operating means to swing laterally of the frame and to rotate about an axis substantially perpendicular to the sole surface of the shoe supported on the jack, and mechanism for moving the jack frame to feed the shoe past the operating means while permitting a rotation of the jack in excess of 360 comprising an actuating member located outside of the path of movement of the shoe support and provided with a bearing for the portion of the frame in which bearing the frame may rotate.

5. A machine for use in the manufacture of shoes having, in combination, means for operating along the bottom margin of a shoe, a jack comprising a frame, a shoe support rigid with the frame, a frame support on which the frame is mounted to rotate about an axis substantially perpendicular to the sole surface of a shoe supported on the jack, and mechanism for moving the jack frame to feed the shoe past the operating means while permitting a rotation of the jack in excess of 360 comprising a pattern cam, and connections between the cam and frame including a link located outside of the path of movement of the shoe support and provided with a bearing for a portion of the frame in which bearing the frame may rotate.

6. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of a shoe supported on the jack, a last pin, a last pin carrier mounted to tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, a jacking lever, a locking device actuated by a movement of the jacking lever to lock the heel support against movement away from the toe rest and by a subsequent movement to release the heel support, and connections from the jacking lever for tilting the last pin carrier to clamp the shoe on the jack.

7. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of a. shoe supported on the jack, a last pin, a last pin carrier mounted to tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, a jacking lever, a locking device to lock the heel support against movement away from the toe rest, and connections from the jacking lever for moving the locking device from an inoperative to locking position and for tilting the last pin carrier to clamp the shoe on the jack.

8. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of a shoe supported on the jack, a

last pin, a last pin carrier mounted to tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, a locking device for locking the heel support against movement away from the toe rest, a jacking lever, and connections actuated by a movement of the jacking lever to tilt the last pin carrier to-clamp the shoe on the jack and by a subsequent movement of the jacking lever to actuate the locking device to release the heel support.

9. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame to move heightwise of a lasted shoe on the jack, a heel support movable on the frame towards and from the toe rest lengthwise of a shoe supported on the jack while the position of the toe rest remains relatively fixed in a direction lengthwise of the shoe on the frame, and a connection between the heel support and the toe rest for adjusting the heightwise position of the toe rest relatively to the heel support during the movement of the heel support towards the toe rest to raise the toe rest for small sized shoes.

10. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame to move heightwise of a lasted shoe on the jack, a heel support movable towards and from the toe rest lengthwise of a shoe supported on the jack, and a connection from the heel support for adjusting the heightwise position of the toe rest during the movement of the heel support towards the toe rest comprising an adjusting member provided with a wedging surface engaging a cooperatingsurface on the toe rest.

11. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest pivotally mounted on the frame to move heightwise of a lasted shoe on the jack, the heel support movable towards and from the toe rest lengthwise of a shoe supported on the jack, and a connection from the heel support for adjusting the heightwise position of the toe rest during the movement of the heel support towards the toe rest comprising a slide provided with a Wedging surface engaging a cooperating surface on the toe rest.

12. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, a jacking lever, connections actuated by the jacking lever to clamp the shoe on the jack, and a locking device actuated by a continued movement of the jacking lever to lock the heel support against movement away from the toe rest and by a subsequent reverse movement to release the heel support.

13. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, a jacking lever, connections actuated by the jacking lever to clamp the shoe on the jack, a. looking device to lock the heel support against movement away from the toe rest, and other connections from the jacking lever for moving the locking device from an inoperative to locking position before movement of the connections to clamp the shoe.

14; In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, toe

centering grips arranged to engage opposite sides of the toe portion of the shoe, means for yieldingly urging the grips towards each other into contact with a shoe placed on the jack, :1 jacking lever, and connections actuated by the jacking lever to clamp the shoe on the jack and to increase the pressure of the grips against the shoe.

15. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, toe centering grips arranged to engage opposite sides of the toe portion of the shoe, means for yieldingly urging the grips towards each other into contact with a shoe placed on the jack, a jacking lever, and connections actuated by the jacking lever to clamp the shoe on the jack and to lock the grips in position.

16. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, toe centering grips arranged to engage opposite sides of the toe portion of the shoe, means for yieldingly urging the grips towards each other into contact with a shoe placed on the jack, a jacking lever, and connections actuated by the jacking lever to .clamp the shoe on the jack and to increase the pressure of the grips against the shoe and lock the grips in position.

17. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, a locking device for locking the heel support against movement away from the toe rest, a jacking lever, and connections actuated by a all) movement of the jacking lever to clamp the shoe on the jack and by a subsequent movement to actuate the locking device to release the heel support.

18. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, a locking device for locking the heel support against movement away from the toe rest, a jacking lever, and connections actuated by a movement of the jacking lever to clamp the shoe on the jack and by a subsequent movement, to unclamp the shoe and actuate the locking device to release the heel support.

19. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, a locking device for locking the heel support away from the toe rest, a jacking lever, and connections actuated by a movement of the jacking lever to clamp the shoe on the jack and to actuate the locking device to lock the heel support against movement and by a subsequent movement, to unclamp the shoe and actuate the locking device to release the heel support.

20. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of a shoe supported on the jack, a last pin, a last pin carrier mounted to tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, a locking device to hold the last pin carrier in tilted position, a jacking lever, and connections actuated by a movement of the jacking lever to tilt the last pin carrier to clamp the shoe on the jack and by a subsequent movement to actuate the locking device to release the last pin carrier.

21. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of a shoe supported on the jack, a last pin, a last pin carrier mounted to tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, means comprising a ratchet and a cooperating holding pawl for holding the last pin carrier in tilted position, a jacking lever, connections from the jacking lever for tilting the last pin carrier to clamp the shoe on the jack comprising a ratchet and pawl, and means actuated by said connections for actuating said holding pawl to release the last pin carrier.

22. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of a shoe supported on the jack, a last pin, a last pin carrier mounted to tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, a jacking lever, and connections from the jacking lever for tilting the last pin carrier to clamp the shoe on the jack comprising a ratchet on the last pin carrier, an arm pivotally mounted on the heel support, a pawl mounted on the arm and arranged to engage the ratchet, and a toggle connected to the arm acting when straightened to tilt the last pin carrier.

23. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of a shoe supported on the jack, a last pin, a last pin carrier mounted to tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, means comprising a ratchet anda cooperating holding pawl for holding the last pin carrier in tilted position, a jacking lever, connections from the jacking lever for tilting the last pin carrier to clamp the shoe on the jack comprising a ratchet on the last pin carrier, an arm pivotally mounted on the heel support, a pawl mounted on the arm and arranged to engage the ratchet, actuating connections between the arm and the jackingv lever for imparting to the arm a movement to tilt the last pin carrier, and means carried by the arm for lifting the holding pawl from its ratchet during a return movement of the arm. i

24. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of a shoe supported on the jack, a last pin, a last pin carriermounted to tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, means comprising a ratchetand a cooperating holding pawl for holding the lastpin carrier in tilted position, a jacking lever, connections from the jacking lever for tilting the last pin carrier to clamp the shoe on the jack comprising a ratchet on the last pin carrier, an arm pivotally mounted on the heel support, a pawl mounted on the arm and arranged to engage the ratchet, actuating connections between the arm and the jacking lever forimparting to the arm a movement to tilt the last pin carrier, and means acting during a return movement of the arm to lift both pawls from their ratchets.

25. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, toe centering grips arranged to engage opposite sides of the toe portion of the shoe, a locking device to lock the toe grips against movement away from the shoe, a jacking lever, and connections actuated by a movement of the jacking lever to, clamp. the shoe on the jack and by a subsequent movement, to actuate the locking device to release the toe grips.

26. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, toe centering grips arranged to engage opposite sides of the toe portion of the shoe, a jacking lever, and

connections actuated by the jacking lever to clamp the shoe on the jack and to press the toe grips against the shoe and lock them against movement away from the shoe.

27. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, toe centering grips arranged to engage opposite sides of the toe portion of the shoe, a jacking lever, connections actuated by a movement of the jacking lever to clamp the shoe on the jack and press the toe grips against the shoeand lock them against movement away from the shoe andby'a subsequent movement, release the toe grips.

28. In a machine for use in the manufacture of shoes, the combination of a pack comprising a frame, a toe rest mounted on the frame, aheel support movable towards and from the, toe'rest lengthwise of the shoe supported on the jack, toe centering grips movable towards and from each other arranged to engage opposite sides of the toe portion of the shoe, a jacking lever, a locking device to lock the heel support against movement. away from the toe rest and to lock the toe grips in engagement with the shoe, and connec-. tions from the jacking lever for moving the locking device from an inoperative to locking position.

29. In a machine for use in'the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, toe centering grips movable towards and from each other arranged to engage opposite sides of the toe portion of the shoe, a member provided with a ratchet and connected to move with the toe grips, and a pawl actuated by the jacking lever to move the ratchet to press the toe grips against the shoe.

30. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support movable towards and from the toe rest lengthwise of the shoe supported on the jack, toe centering grips movable towards and from each other arranged to engage opposite sides of the toe portion of the shoe, a member provided with a ratchet and connected to move with the toe grips, a jacking lever, and a locking pawl moved by the jacking lever into and out of engagement with the ratchet to lock the toe grips'against the shoe and to release the toe grips.

31. In a machine for use in the manufacture of shoes, the combination of a jack comprisin a frame, a toe rest mounted on the frame, a heel support mounted on the frame to slide lengthwise of a shoe supported on'the jack towards and from the toe rest, a last pin, a last pin carrier mounted to .tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, a locking pawl for the heel support mounted on the heel support, a cooperating ratchet mounted on the frame, a jacking lever, and connections actuated by a movement of the jacking lever to tilt the last pin carrier to clamp the shoe against the toe rest and also actuated by said movement of the jacking lever to engage the locking pawl with the ratchet and lock the heel support against movement away from the toe rest.

32. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel jacking lever to tilt the last pin carrier to clamp the shoe against the toe rest and also actuated by said movement of the jacking lever to engage the locking pawl with the ratchet and lock the heel support against movement away from the toe rest and actuated by a subsequent movement of the jacking lever to disengage the pawl from the ratchet and also actuated by said subsequent movement of the jacking lever to release the last pin carrier.

33. In a machine for use in the'manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support mounted on the frame to slide lengthwise of a shoe supported on the jack towards and from the toe rest, a last pin, a last pin carrier mounted to tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, toe centering grips movable towards and from each other arranged to engage opposite sides of the toe portion of the shoe, a member provided with a ratchet mounted on the frame and connected to move with the toe grips, a pawl mounted on the heel support, a jacking lever, and connections actuated by movement of the jacking lever to tilt the last pin carrier to clamp the shoe against the toe rest and also actuated by said movement of the jacking lever to engage the pawl with the ratchet and lock the heel support against movement away from the toe rest and lock the toe grips against the shoe.

34. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support mounted on the frame to slide lengthwise of a shoe supported on the jack towards and from the toe rest, a last pin, a last pin carrier mounted to tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, toe centering grips movable towards and from each other arranged to engage opposite sides of the toe portion of the shoe, a member provided with a ratchet mounted on the frame and connected to move with the toe grips, a pawl mounted on the heel support, a jacking lever, and connections actuated by movement of the jacking lever to tilt the last pin carrier to clamp the shoe against the toe rest and also actuated by said movement of the jacking lever to engage the pawl with the ratchet and lock the heel support against movement away from the toe rest and lock the toe grips against the shoe, and actuated by a subsequent movement of the jacking lever to disengage the pawl from the ratchet and also release the last pin carrier.

35. In a machine for use in the manufacture of shoes, the combination of a jack comprising atframe, a toe rest mounted on the frame, a heel support mounted on the frame to slide lengthwise of a shoe supported on the jack towards and from the toe rest, a last pin, a last pin carrier mounted to tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, a jacking lever pivotally mounted on the heel support, connections from the jacking lever for tilting the last pin carrier to clamp the shoe on the jack comprising a ratchet on the last pin carrier, an arm pivotally mounted on the heel support, a pawl mounted on the arm and arranged to engage the ratchet, and a link connecting the arm and jacking lever forming with the jackin lever a toggle, a ratchet mounted on the frame, and a pawl mounted on the jacking lever and connected to be moved by the jacking lever into and out of engagement with the ratchet to lock the heel support against movement away from the toe rest and to release the heel support.

36. In a machine for use in the manufacture of shoes, the combination of a jack comprising a frame, a toe rest mounted on the frame, a heel support mounted on the frame to slide lengthwise of a shoe supported on the jack towards and from the toe rest, a last pin, a last pin carrier mounted to tilt on the heel support and press the toe of a lasted shoe placed on the jack against the toe rest, toe centering grips movable towards and from each other arranged to engage opposite sides of the toe portion of the shoe, a member provided with a ratchet mounted on the frame and connected to move with the toe grips, a jacking lever pivotally mounted on the heel support, connections from the jacking lever for tilting the last pin carrier to clamp the shoe on the jack comprising a ratchet on the last pin carrier, an arm pivotally mounted on the heel support, a pawl mounted on the arm and arranged to engage the ratchet, and a link connecting the arm and jacking lever and forming with the jacking lever a toggle, a locking pawl pivotally mounted on the jacking lever and arranged to be moved bythe jacking lever into engagement with said first-mentioned ratchet to lock the heel support against movement away from the toe rest, and thereafter to move the ratchet to force the toe grips against the shoe.

ALFRED R. MORRILL.

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