US2332651A

US2332651A - Machine for use in the manufacture of shoes

Info

Publication number: US2332651A
Application number: US427316A
Authority: US
Inventors: Robert H Lawson
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1942-01-19
Filing date: 1942-01-19
Publication date: 1943-10-26
Anticipated expiration: 1960-10-26

Description

0a. 26, 1943. R. H. LAWSON 2,332,651

MACHINE FOR USE IN THE MANUFACTURE OF SHOES Filed Jan. 19, 1942 5 Sheets-Sheet 1 Oct. 26, 1943. R. H. LAWSON 2,332,651

MACHINE F OR USE IN THE'MANUFACTURE OF SHOES lfiled Jan. 19, 1942 5 Sheets-Sheet R. H. LAWSON Oct. 26, 1943.

MACHINE FOR USE IN THE MANUFACTURE OF SHOES 5 Sheets-Sheet 3 Filed Jan. 19, 1942 Oct. 26, 1943. R. H. LAWSON MACHINE FOR USE-IN THE MANUFACTURE OF SHOES 5 Sheets-Sheet 4 Filed Jan. 19, 1942 Patented 0st. 25, 1943 anger.

UsE IN THE MANUrAcTpRE .j or snons MACHINE FOR Robert H. Lawson, Beverly, Mass 'assignornto United Shoe Machinery Corporation, Flemington, N. 3., a corporation of New Jersey Application January 19, 1942, Serial No. 427,316 Y 42 Claims.

The present invention relates to a machine for use in the manufacture of boots and shoes of the general type which comprises devices for per" forming an operation along the upturned bot-. tom of a knee length boot or high-cut shoe and to aboot or high-cut shoe supporting jack, the position of which with relation to the operating devices is changed as the point of operation of said devices is transferred along such footwear, further reference to shoes, unless otherwise specified, being intended as inclusive of knee length and other forms of boots. The several features of the invention are herein disclosed in-an automatic side lasting machine and are intended primarily as improvements in the construction of the jack and of the mechanism, for changing the position of the jack in the machine of in ventors U. S. Letters Patent No. 2,201,866 of May 21, 1940. It is to be understood, however, thatv certain features of the present invention are not limited to use in the particular machine of.

the patent above referredto or to those of the general type to which this machine belongs, but are advantageous when used with other types of machines for manufacturing or processing shoes.

In the machine of inventors patent referred to, the jack comprises a toe restand a relatively movable heel post mounted on a slide for clamping a shoe by movement towards the toe 3 rest. The length of the heel post and its mounting on the slide is such that in order to clamp a shoe having a high-cut upper, it is necessary to roll back the upper and to take special precautions in guarding it from contact with the moving slide and other operating parts of the jack. With a riding boot having a full knee of a jack constructed to receive the leg in fully extended condition.

One object of the present invention is to pm vide in amachine for operating uponiull length riding boots and high-cut shoes, a novel and improved form of jack which will enable such footwear to be applied to the heelpost on the jack without rolling back the leg or otherwise flexing it from its natural shape. Another object of the invention is to improve the construction of a shoe supporting jack having a pivotal mounting on a jack supporting frame, the axis of which mounting extends lengthwise of and in close proximity to thebottom of the shoe on the jack so that shoes having relatively high-cut uppers may be applied to the jackand operated upon successfully without'in'terfering with the movements of the jack about its pivotal mounting on the jack frame or-requiring complete re-design of the machine with which it is to be employed as a result of a change of dimensions in the jack. 1

In addition to connection on the frame being located substanlength leg portion, it is extremely dilficult to roll back the leg sufficiently to clear the heel,

post supporting slide on the jack of the patent.

.Rolling back the leg of a boot also has unclesirable results in wrinkling the material subiecting it to strain or other damage.

To enable both margins along the upturned:

bottom of a lasted shoe to be pressed against'two separate sets of lasting devices at the same time,

the jack of the patented machine has a pivotal mounting on a jack supporting frame, the axis of which mounting extends in close proximity to the bottom of a shoe being operated upon be-.

tween the sets of lasting devices lengthwise of the shoe. A leg of a riding boot is of such length as to require a'substantial increase of length in the heel post, as well as an entire re arrangement of this lengthwise pivotal mounting ther object an improvement in general con struction and arrangement for a jack frame and properly to the operating devices. ented construction, the transverse pivotal con- "tiallybelow the shoe. During operation on a shoe, the angular position of the jack frame is changed about its transverse pivotal connection with the supporting structure to present the shoe In. the pat nection between the jack frame and supporting structure is located directly beneath and in close proximity to the shoe to enable the requisite angular positioning movements to be imparted to the jack frame and the shoe thereon. The leg of a full length riding boot extends sufficiently be low a last on which it is mounted, as compared to the distance between the heel post and the transverse pivotal connection on the frame of the patented jack, to overlap the location of the pivotal connection, as well as other moving portions of the jack supporting structure. As a result, further substantial departures from the general construction and arrangement'of the patented jack frame and supporting structure are necessary to clear the space surrounding the downwardly extending leg of a boot on the jack.

The present invention, therefore, has for a fur;

l the pivotal mounting extending lengthwise of a shoe, thejack frame of inventors patent is pivotally connected to a base included acsaeci located on the frame sufficiently to one side and above the lowermost leg receiving portions of a last pin and heel post constructed to support a full length riding boot that the leg portion of the boot will not be subject to damage nor the boot be restricted in its positioningmovementsin any respect. In order to provide a frame and supporting structure for a jack capable of accommodating a full length ridingboot with the leg extended, which jack may be employed interchangeably with the jack of the patented machine, the frame supporting structure of the jack, according to this feature of the invention, is so arranged that full swinging movements in the jack frame are obtained about its pivotal con- I nection with the supporting structure to present the shoe properly to the operatingdevices without objectionable strains in the supportingstructure or the necessity for application of excessively heavy forces in the power drivenjack actuating mechanism. These results are obtained in spite of rearrangement in the lengthwise pivotal mounting, and the change inlocation of the pivotal connection between the frame and the supporting structure, the same overall height of the jack and supporting structure as in the patented machine being retained.

With the same overall height in the jack, it is possible to employ a power driven mechanism for actuating the jack frame about its point of transverse'pivotal connection on'the supporting'structure which is substantially the same as employed in the patented machine. The supporting-structure for the jack frame accordingto this feature of the invention itself causes the frame automatically to be maintained in the same angular relation about the transverse pivotal connection to the base regardless of the movem'entof'the jack lengthwise of a shoe as the operation progresses. By such construction, certain pattern cams in the actuating mechanism of the prior machin aresimplified, particularly those for imparting the feeding movements to the shoe, and for changing the angular position of the jack about its point of transverse pivotal connection, each of these cams in the present machine having shapes for imparting particular movements without reference to the movements imparted by the other. In the machine of the patent, each of these cams must be modified to compensate for movements imparted by the other.

The means for enabling the jack frame to be held in substantially the same angular relation to the supporting structure about the point of transverse pivotal connection as the operationon the. shoe progresses comprises, in its illustrated form, a pair of interconnected links disposed at an angle to eachother between the frameand base, an upward force being exerted on one of the links to press the shoe bottom against the operating devices and a lever for imparting a.

feeding movement to the shoe being connected to move the other of said links. The angular relation about the point of transverse pivotal connection is maintained automatically between the jack frame and base according to this feature by connecting rods extending between the frame and base and acting with the links to impart similar angular movements of the frame whenever the angle of the base is changed. With the base held stationary and the feed lever moved,

the frame moves bodily as guided through e11 gagement of the shoe bottom by the operating devices, one of the links swinging about the transverse pivotal connection on the frame and the other link acting to exert an upward pressure on the-jack to hold the shoe against the operating devices.

In the patented-machine, the pivotal mounting for the jack consists of bearing members connected with the jack and supports it at both the toe rest and heel post ends. Preferably the I lengthwisepivotal mounting between the jack frameand the jack of the present machine connects the toe rest end only of the jack with the frame so that the heel post end of the jack is free from obstruction during all the positioning movements of the shoe. In' the jackhereinafter described, a thrust member is provided on the toe end of the jack acting against a similar member on the frame to exert. an upward pressure onthe heel end of the jack in all positions of thejacl: relative to its lengthwise pivotal mounting on the frame and lengthwise retaining members also are provided between the thrustmembers and the lengthwise pivotal mounting for preventing separation of the jack from the frame. Thus, thenecessity for a separate pivotal mountingat the-heel end of the jack is avoided. I

Other features. of the invention consist in'certain devices, combinations and arrangements, of parts hereinafter described andclaimed includ ing improved shoe clamping devices in the jack andnovel mechanisms for releasing the shoe and resetting the clamping devices, the advantages of which will be. obvious from the following description taken in connection with the accompanying drawings, in which Fig. 1- is a view in right side elevation of an automatic side lasting machine and jack embodying the severalfeatures of the invention; Fig. 2 is a sectional detail view on av somewhat enlarged scale taken through the plane of th jack illustrating the construction'of the supporting structure; and the arrangement of the power driven actuating mechanism for the ack; Fig. 3 is a sectional detail View on a still further enlarged scale of a portion of the jack illustrated in Fig; 2, showing the positions of the parts with an unlasted high-cut riding boot clamped in operating position; Fig. 4 is a sectional view taken along the line IV-IV of Fig. 3; Fig. 5 is a fragmentary view of the lowermost downwardly extending portions of the toe rest and heel post, as viewed from the line VV Of' Fig. 2; Fig. 6 is a sectional detail view on an enlarged scale of the from the line VIVI of Fig. 2; Fig. 7 is a. further sectional view of the jack actuating shaft taken along the line VII-VII of Fig. 2; Fig. 8 is a detail sectional view of a pulley and cord clamp on the jack actuating shaft; Fig. 9 is a detail w'ew on an enlarged scale of a slide and guide- Way included in the mechanism connected with the ack actuating shaft; Fig. 10 is an enlarged separated perspective view of a cable clamp illustrated in Fig. 8; Fig. 11 is asectionalidetail view jack actuating shaft, as viewed of the heel post and last receiving pin thereon; Fig. 12 is a further enlarged plan view of the last pin; Fig. 13 is a plan view, partly in section, of an unlasted shoe supported on the jack; Fig. 1l is a perspective view of a resetting lever for the jack; and Fig. 15 is a perspective view'of a toe supporting chute on the toe rest of the jack.

Except as hereinafter described, the machine illustrated in the drawings is the same in all essential particulars as themachine disclosed in inventors Patent No. 2,201,866 above referred to.

The two lasting units of the machine include insole guiding presser feet 2 and upper tensioning and securing devices 4 operated from ,a power driven cam shaft 5 and arranged as in the machine of inventors prior Patent No. 1,963,170 of June 19, 1934. The lasting units and cam shaft are mounted in a main frame 8 within the base of which are carried suitable power driven pattern shafts, one of which is indicated in Fig. 2 at ill. Outside the main frame is a shoe supporting jack, the position of which is changed by cams on the pattern shaft during operation on a shoe to present the upturned bottom surface of the shoe properly to the lasting units.

The jack of the prior machines comprises a toe rest and a heel post supported in a cradle mounted for pivotal movement about an axis extending lengthwise of a shoe on the jack close to the bottom of the shoe. The cradle has a hooked or shouldered toe end gage pivotally mounted on the jack similar to the gage indicated at it? in the accompanying drawings, and to clamp the shoe in position on the jack cradlathe heel post carries a last receiving pin projecting from a slide mounted in the cradle for movement towards and from the to rest. cradle engage both the toe and heel ends of the cradle and are mounted in a U-shaped jack frame having supporting structure in the form of a substantially horizontally extending link and a vertical pivoted base. The arrangement is such that an upward force is exerted to press the bottom of a shoe against the two presser feet 2 of the lasting devices operating simultaneously along opposite sides of the upturned shoe bottom and suitable positioning movements are imparted to the shoe by changing the positions of the base and jack frame relatively to each other as the operation progresses. A pivotal connection between the jack frame and the horizontal link in the supporting structure enables the jack to swing about an axis substantially below the jack cradle extending transversely to the length of the shoe.

The length of the last pin and the shape of the cradle in the prior machines are such that when a high-cut shoe is applied to the jack, the downwardly extending leg portion of the upper 53 must be folded back over itself to clear the cradleand jack frame. Even if folded back, the bulk of a high-cut shoe upper presents a serious obstacle, the operations on such classes of footwear being limited to this extent.

To enable satisfactory operations on a relatively high-cut boot, the leg portion of which extends substantially beyond a supporting last M, the toe rest of the jack in the present machine consists of a reversely bent arm is, extending downwardly sufficiently to clear the leg of the largest sized riding or other type of boot to be operated upon and the heel post, indicated, at E5, is of substantially the same length, being hingedly joined by a pin it to the lower end of .the toe restarm.

The jack, insteadof beingin cradle forrnypiv-j The pivots for supporting the axis of the transverse shaft 28.

' pressure.

otally supported on both the toe rest and heel post ends, as in the patented machines, is, in the machine of the present invention, supported to swing on a single pivot 2% having a roll 22 engaging a curved horizontal slot formed in a mounting block 24 fastened to the upper end of the toe rest arm 15. The axis of the pivot 29 extends lengthwise of the shoe in the jack and coincides substantially with the plane of the shoe bottom or extends in close proximity thereto, as described more particularly in inventors Patent No. 1,999,298 of April 30, 1935. To provide a clear space for the downwardly extending portions of the toe rest and heel post while swinging about the axis of the mounting pivot 26, the jack frame, indicated at 25, is substantially smaller than the U-shaped frame of the machines in the patents, being of sufiicient size and strength to support the jack at the toe rest end only and to provide bearing members for exerting an upward thrust on the heel post end of a shoe supported onv the jack.

The supporting structure of the jack frame 26 for enabling the present jack to swing about an axis extending transversely to the length of the shoe includes a shaft 23 rotatably mounted in the jack frame to form a pivotal connection between the frame and the supporting structure at a point substantially above the lowermost portions of the toe rest and heel post. To avoid the necessity of employing a lengthwise pivotal mounting at the heel post end of the jack, the thrust bearing members of the jack frame 25 in the present machine comprise roll 38 (see Figs. 2 and 3), rotatable on a vertical stud 32 threaded into a lug on the frame and a horizontally disposed plate 3 on the jack. The roll it is located on the frame at a point between the lengthwise pivot 29 and the transverse pivotal connection of the supporting structure formed by theshaft 28, the arrangement being such that it is unnecessary to extend the jack frame downwardly to any substantial distance below the The roll 36 is spaced as far as convenient from the lengthwise pivot 2'5 on the frame to provide suitable support against downward pressure exerted on the roll through the shoe on the jack by the presser feet 2 of the lasting devices.

To retain the toe rest on the frame and prevent its separation from the roll 22 as a result of donward pressure of the presser feet 2, the upper end of the heel post between the thrust members and the pivot Ed has secured to it a flat cross bar 36 (see Fig. l), the projecting portions of which are engaged by balls 35 located within recesses-at the upper ends of a pair of braces 4E! secured to side arms on the jack frame 26. In supporting the heel post end of the jack and preventing separation of the jack frame from the roll 22, the balls 38 and bar 36 act together with the roll 30 and the thrust plate M to form a pressure resisting mechanical couple arranged in opposition to the forces exerted bythe downward As a means to insure proper movement of the shoe along the presser feet as the jack. is moved towards the right, the pivot Ell adjacent the roll 22 has a vertical pin projecting upwardly and carrying a second roll 42 which acts against a horizontal face on the mounting guide block 23.

The supporting structure for the jack frame in the machine of Patent No. 2,201,866 comprises a basesimilar to that indicated at it provided with an upwardly extending arm 46 and a horizontally extending link similar to that indicated at 38 in the present drawings. In the jack supporting structure of this patent, the jack frame is directly and pivotally connected to the right end of the link corresponding to the link it so that in tipping the ends of the shoe about the presser feet 2 of the lasting devices to change the position of the shoe properly while being presented to the lasting devices, it is necessary to move the point of pivotal connection between the jack frame and the supporting structure. With the toe rest arm is and heel post It extending downwardly to provide space for the leg portion of a high-cut boot or shoe, as in the present jack, the weight of the parts, together with the weight of a supporting structure designed after the patented construction would be substantially greater than that of the patented jack. Furthermore, because of the extra space required by the downwardly extending heel post in a high-cut boot receiving jack, there is no available room for a jack base and arm of sufficient height to provide the requisite space for movements as the point of operation is transferred lengthwise of the shoe where the jack frame and base are connected by a single link.

The supporting structure for the jack frame according to an important feature of the present invention, is so arranged that the frame always assumes the same angular position as the jack base when the point of operation is transferred lengthwise of a shoe on the jack even though the arm at on the base is substantially shorter than the arm on .the base of the jack in Patent No. 2,201,866. The present supporting structure, in addition to the link 455, includes a vertical link 56 disposed at an angle to the link 38 and connected at its lower end by a shaft 52 to the link 58 and at its upper end by the transverse pivotal connecticn shaft 255 to the jack frame 23. Also connected between the base 44 and the jack frame 26 are suitable connections for holding the frame and base in the same angular relation to each other, rgardless of the movement of the jack lengthwise of the boot or shoe thereon. These connections consist of a horizontal rod 54 mounted at one end on a shaft 56 in the arm it and at the other end pivotally connected with a lever 58 rotatably supported on the shaft 52. The lever 53 also is pivotally connected with a substantially vertical rod 65, the upper end of which is rotatable on a shaft 62 mounted in the jack frame 25. The connecting rods and lever form with the pair of links 43 and 5d two sets of parallel linkages between the base and jack frame. When the jack frame is moved in a direction lengthwise of the boot or shoe as the operation is transferred along the shoe, the link swings about the shaft 52 and supports th jack frame by an upward force imparted by the link so that fore-shortening of the link as a result of movement of the jack lengthwise of the boot or shoe is compensated for by slight upward movements of the shaft 52 together with the right end of the link 4353, the connecting rods {it and Gil maintaining the upper end of the jack frame 25 in substantially parallel relation to the base and arm E5 at all times. For purposes of strength and lightness in the jack frame, the toe rest, the heel post, the links, the connecting rods and the lever 53 are in the form of hollow channel members with parallel flanges.

The power driven mechanism for pressing the jack frame upwardly to force the boot or shoe against the presser feet of the lasting units is similar to that disclosed in Patent Nol 2,201,866.

This mechanism is actuated from a cam on one of the pattern cam shafts inside the base of the machine. The upward pressure is transferred to the jack supporting structure through a cord 62, the outer end of which is fastened to a pin 64 on the connecting rod 54 and extends upwardly over a pulley 68 rotatable on a shaft (i8 forming a pivotal connection between and passing through the flanges of the arm d e and the link 28. From the pulley 66, the cord 62 passes downwardly beneath a pulley 1G rotatable on a shaft 72. From the pulley H3, the cord 62 passes axi-; ally through the pivotalconnection of the jack base 44 and the main machine frame 3, being connected to the operating parts within the base in a manner more clearly disclosed in Patent No. 2,201,866.

Before a shoe is applied to the jack, the toe rest and the heel post are in the positions indicated in 'Fig. 2 with the heel post separated sufficiently from the toe rest to accommodate the largest size of shoe capable of being operated upon in the machine' At the upper end of the heel post is a last pin M (see Fig. 11), having a hollow shank slidably mounted in the heel post and normally spring-pressed into its highest.

raised position, a suitablet fixed stoppin 16 passing through a slot in the last pin to limit the upward movement of the last pin. When a shoe is applied to the last pin, downward pressure on the last pin trips the jack, as hereinafter described. Tripping the jack causes the heel post to be moved yieldingly towardsthe toe restand the toe end of the shoe to be urged yieldingly against an arcuate chute l8 on the toe rest similar to the chute of inventors Patent No. 2,252,325 of August 12, 1941. The chute l8 acts to guide the toe of the shoe against the shoulder on the. toe end gage 82, as in the patent just referred to, but in the present jack, no separate toe clamps are provided for raising the shoe against the shoulder or gripping it. To clamp the toe of a shoe in the present jack, the chuteitself is raised. On the under side of the chute is a circular pad 79 arranged to be engaged by a block 88 having a tubular shank slidably mountedin the toe rest arm I 5 and acted upon by one'end of a coil spring 82 surrounding a pivot Mon the toe rest arm for the chute F8. The block is nor-, mally held depressed against the spring by, one end of a double acting'pivoted dog 85 having a notch within which a tooth on the lower end of gage I2 is received. When engaged by the shoe,

the gage causes the dog to release the block momentarily and again to lock the block after the chute raises the shoe against the shoulder on the end gage.

To urge the heel post l6 yieldingly towardsthe toe rest arm 15, the downwardly extending channel shaped portion of the toe rest arm carries a tension spring 85 stretched between a cross shaft 88 in the toe rest and a pin 9Q on a vertical jack opening bar 92movably supported between the flanges of the toe rest. Near its upper'end, the bar 92 is pivotally mounted on an arm 94 rotatable on the shaft 88 and at its lower end the bar is pivotally connected to a'triangular lever 96 fulcrumed on a shaft98 in the toe rest. Between the lever 98 and a shaft IDB located on the heel post between its flanges andspaced somewhat. 1

from the pivot l8 between the heel post and toe rest arm is a curved link IE2 extending around the boot leg receiving space formed by the downwardly extending portions of the heel'post and the toe rest. The link IM and one arm of the lever .lii act together as a toggle to multiply the force exerted by the spring 86 in drawing the heel post towards the toe rest. During separation of the heel post from the toe rest, the link and lever arm move close to but do not quite reach posoitions in which their points of pivotal connection become aligned. Just before the positions of alignment are reached, the lever 96 engages the central flange of the downwardly extending channel portion in the toe rest arm, thus limiting the separation. The arrangement is such that the force applied by the spring $6 to the heel post is increased with a large-sized shoe over that with a small-sized shoe. With a small-sized shoe, the force required to clamp the shoe in place is less than with a larger one because the position at which the presser feet of the lasting units apply their pressures is nearer to the toe rest of the jack on a small shoe and as a result, the components of forces tending to displace the shoe are less. With relatively large displacement of the heel post from the toe rest with large-sized shoes, the forces exerted by the presser feet on the shoe bottom have a greater tendency to separate the heel post from the toe rest and are accordingly resisted to increased advantage by the toggle connections 96, [82.

At the end of the lasting operation on a shoe, the heel post is separated from the toe rest to enable a new shoe to be substituted for the old one. Mechanism is provided for automatically separating the heel post from the toe rest comprising power operated devices acting on the jack opening bar 92 in the toe rest arm l5. Above the jack opening bar in the. toe rest arm, there is a lever lll i mounted on a pin m6 between the flanges of the toe rest arm having pivotally connected to one arm a downwardly extending pawl Hi8. Surrounding the point of pivotal connection between the pawl and the lever I64 is a coil spring Hi3 tending toswing the pawl away from the upper end of the jack opening bar into a position indicated in Fig. 3. The pawl is formed with a substantially vertical cam surface arranged to be engaged by a U-shaped arm of a jack actuating lever H2 fulcrumed on a pair of studs H4 in the jack frame. When first engaged by the jack actuating lever, the cam surface on the pawl causes the pawl to move towards the jack opening bar until it reaches a position of substantial alignment with the bar. Further movement of the jack actuating lever presses a ledge on the pawl downwardly to move the pawl bodily against the upper end of the bar, causing it to be depressed and the jack to be opened. As the bar is depressed, it rocks'the lever 95 and moves the link IE2 downwardly to swing the heel post away from the toe rest against the tension of spring 36 (see Fig. 2). .When held in this position, the jack actuating lever holds the heel post in readiness to receive a new shoe.

Upon the application of downward pressure of a shoe against the last pin M, the pawl M38 is disengaged from the jack actuating lever 1 l2 and the jack opening bar is allowed to rise. Thus, the jack is tripped and the shoe clamped in operating position. The lower'end of the last pin 14 is connected by a link 1 iii to a lever I it fulcrumed on the shaft iilfl between the flanges of the heel post. The lever H3 also is connected through a link lid to a tripping arm I22 having an up-v wardly extending finger located to contact a pin its in the pawl I88 when the pawl is in jack opening position. Downward pressure on the last pin M causes the ledge on the pawl to be moved out of engagement with the U"-shaped arm of the jack actuating lever and to become disconnected therefrom. As soon as this occurs, the jack opening bar 92 immediately is moved upwardly by the spring 86, and causes the jack to clamp the shoe.

To cause the chute l8to be reset whenever the jack is opened, the lever 184 on which the pawl "38 is mounted is connected by a link 26 to a chute resetting lever I28 acting in a manner similar to a corresponding lever for resetting the toe grips in the machines of the patents referred to. The chute resetting lever has a lug entering a recess in the shank of the block beneath the spring 82. I

To move the jack actuating lever l l2 after each lasting operation has been completed, the lever is pivotally connected through a link 13b to one corner of a slide box I32 fulcrumed at a second corner on a pivot I34 between the flanges of the jack frame 26. rolls I35 (Fig. 9) spaced to fit a sliding pitman rod I36 connected to a crank-arm I38 extending from the hub of a pulley Mil rotatable about the shaft 28, the rodbeing rotatable on a crank pin l ll passing through the crank arm and the pulley. When the pitman is actuatedfit rocks the slide box I32 about its pivot I33 and actuates link I30 and lever H2.

Keyed to the hub of the pulley i i-ii is a sleeve 9-32 (see Fig. 6) also surrounding ie shaft 28 and forming a journal for hearings in the jack frame and supporting link Ell. The pulley is rotated by a cord Mil extending downwardly b tween the flanges of the link 5!), around a pair of pulleys it on the shaft 52, a second pair of pulleys I 38 on the shaft 68 and a third pair of pulleys E58 on the shaft 12. From the pulleys -3, the ends of the cord extend axially of the pivotal mounting inside the jack base on the main frame of the machine and to suitable cam actuated drums inside the main frame, as disclosed in the prior patents referred to. The shaft 23 also supports a cam N12 for shifting the jack relatively to the lengthwise mounting pivot 23 on the jack frame, as in the patents referred to.

For moving the jack to transfer the point of operation along the boot or shoe bottom, the jack frame 25 is pivotally connected through a feed link i5 2 to a feed lever Hill fulcrumed on the machine frame and actuated by size adjustable mechanisms, as in inventors patents, from a cam I58 on the pattern cam shaft ii). To swing the ends of the shoe about a transverse axis passing through the point of operation of the lasting devices, the jack base 44 has a horizontally extending arm engaging a cam ltd on the pattern car-n shaft iii. In the machine of inventors patents above identified, the two cams which correspond to those indicated at l58 and its are readily replaceable when the style of the shoe operated upon is changed. The mechanism actuated by these cams is such that whenever one of the cams is replaced, the other must also be replaced, since the cam Hit, commonly called the pitch cam, must be cut with suitable compensation for the movements imparted by the.

feed cam 953. With the present jack supporting structure, it is unnecessary to replace both of these cams with every change in style of shoe since the angular position of the jack base controls the angular position of the jack frame, regardless of the operating position lengthwise of a boot or shoe. Accordingly, it is unnecessary to cut the cam Hill with any character which is The slide box is provided with in compensation for the shape-of the H8 and either of the cams may be selectedas to shape independently of the other.

To increase the space for swinging movement of the downwardly extending portions of the toe rest, arm and heel post, the link so is cut away along the edges of its side flanges and that portion of the cord M l nearest the toe rest is defiected towards the other stretch of cord extending downwardly from the pulley Mil. Between the flanges of the link 59 there are arranged three cord deflecting guide pulleys I652 about which. the cord passes. These pulleys are moun ed near the lower end of the link 50 and since they move with the link cause no change in the lengthwise position of the cord as the

linksv #

18 and 50 move with relation to each other. To direct the cord [it in accurate alignment with one of the pulleys I50 at the left, a small idler pulley I53 is mounted on the shaft 56.

In the jack of the prior patents, the jack actuating pulley in the jack frame for rotating the cam, corresponding to the present cam I52, has secured to it a split block fitting a slot in the pulley carried by the actuating shaft. To clamp the halves of the split block against the cord, in the patented jack, a screw is inserted in the block axially of the pulley with its head accessible from one side of the pulley. Due to the arrangement and construction of the jack frame and supporting structure in the present jack, it is difiicult to employ a split block in which the cord is clamped by a screw so located. Accordingly, in the present illustrated jack, a cord clamping block I6 3, illustrated in Fig. 1%, is employed. This block is formed in a single piece with end notches, one of which fits a rib on the hub of the pulley Mil to hold the block on the pulley by the tension on the cord and the other of which receives the cord [44. The cord receiving notch is enlarged to form a circular opening and threaded for a cord clamping set screw m6, the slotted driver engaging end of which faces radially from the axis of the actuating cam, thus rendering the set screw easily accessible between the flanges of the jack frame for clamping and unclamping the cord. To prevent the set screw 56 from cutting the cable, an I-shaped clamp bar IE7 is interposed between the end of the set screw and the cable, the under surface of the clamp bar being grooved to fit the cable. The enlarged ends of the clamp bar extend outside the notch in the clamping block Hi l to prevent lengthwise displacement of the bar in the notch.

The chute T8 in the present jack for guiding and clamping the shoe in place on the toe rest instead of being formed at its toe engaging end with cut-out portions to clear a pair of toe clamps as in the jack of the Patent No. 2,252,325, above referred to, is in the form of a rectangular plate bent into an arcuate trough shape extending lengthwise of the shoe on the jack with a transverse curvature less than the transverse curvature of the largest size of shoe intended to be operated upon. The operation of the lasting devices in the present machine is such that a shoe in which the upper is temporarily attached at the toe by means of three tacks I80 (see Fig. 13) may be applied to the trough without the use of any special toe clamping devices. One of the tacks I89 is inserted at the tip of the shoe toe and two others are driven at either side of the toe approximately in line with the toe cap. Shoes are commonly prepared for lasting in this way and the arrangement of the, tacksfcauses the upper to bulge between; the tacks with projecting ears m2, Theears' of the upper, when. the, toe

of the shoe is applied to the shoe, engagethe plate are bent downwardly somewhat; to avoid 1 injury of the upper, particularly when the operation on the, shoe .is completed and the shoe is. withdrawn.

To steady the heel end of the. shoe against rocking movement about its lengthwise. axis, the last pin M of the present. jack is formed with a transverse diameterto fit closely within a stand ard sized ferrule forming the last pin hole. of the last i l, as indicated in;Fig. 13. Since the. last pin is. arranged to. slide. only in a vertical direc i n on the heel post, it would be impossible to raise or lower the toe of the shoe into proper relation to thev toe end gage if the last pin 16 was of uniform diameter fitting the last pin hole in the last.

To enable the toe of the shoe tov be raised or lowered about a transverse axis, while still preventing rocking movement about a lengthwise aXis, the surfaces of the last pin facing theme and heel ends of the last are flattened and undercut along opposite sides in line with the lengthwise dimensions of the last and particularly as indicated at I82 on the upper end at the heel side; of the last pin and as at I84. onthe lower end at the toe side of the last pin. These undercutportions enable the toe of the shoe to be raised or lowered a suflicient amount to bring the toe of the shoe against the shoulder on the end gagev without obstruction as the heel post approaches the toe rest during the shoe clamping action of the jack; When thus shaped, the uncut portions of the last pin secure the last without. substantial freedom of rocking movement transversely to'the lengthwise dimensionof, the; shoe or about its lengthwise aXis.

The nature and scope of the invention having been indicated and a particular embodiment,

thereof having been described, what is claimedisr 1. In a machinefor manufacturing shoes hav-' ing devices for performing an operation progressively along the uptu'rned bottom of a shoe one last, in which theupper leg of the shoe extendsdownwardly substantially below the last, the combination with a jack having a toe rest and A a'heel post formed with downwardly extending portions spaced to, provide an opening for the leg and acting to clamp theshoe in position by relativemovement of the heel post towards thetoe rest. a frame. on which the jack is mounted for rocking movement-about. an axis extending the shoe; bottom lengthwise of the shoe:-

close to; as the operation is transferred along the shoe,- a supporting structure for thejack frame, and a pivotal connection between the; frame and'sup porting structure at a point on the frame substantially above the; lowermost spaced portions of the toe rest and-heel post to enable theshoe to swing about an axisextending transversely'to the length of the shoe.

2. In a machine for manufacturing shoes hav mg devices for performing an, operation progres-J sively. along the upturned bottom of a shoefon a: last, in which the upper leg ofthe shoe extends; downwardly. substantially below the last, the.

combination with a jackhaving; a toerest andl a heel post formed with downwardly extending portions spaced to provide an opening for the leg and acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a frame on which the jack is mounted for rocking movement about an axis extending close to the shoe bottom lengthwise of the shoe as the operation is transferred along the shoe, a supporting structure for the jack frame comprising a base and a pivotal connection between the frame and supporting structure extending transversely of the shoe at a point on the frame substantially above the lowermost spaced portions of the toe rest and heel post, and means for causing the frame to swing about its point of transverse pivotal connection with the supporting structure as the position of the frame lengthwise of the shoe is changed with the base held stationary.

3. In a machine for manufacturing shoes hav-- ing devices for performing an operation progressively along the upturned bottom of a shoe on a last, in which the upper leg of the shoe extends downwardly substantially below the last, the combination with a jack having a toe rest and a heel post formed with downwardly extending portions spaced to provide an opening for the leg and acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a frame on which the jack is mounted for rocking movement about an axis extending close to the shoe bottom lengthwise of the shoe as the operation is transferred along the shoe, 9. supportingstructure for the jack frame comprising a base and a pivotal connection between the frame and supporting structure extending transversely of the shoe at a point on the frame substantially above the lowermost spaced portions of the toe rest and heel post, and means for moving the frame on its transverse pivotal connection to hold it substantially in the same angular relation to the base as the shoeis moved lengthwise as the operation on the shoe progresses.

4. In a machine for manufacturing shoes having devices for erforming an operation progressively along the upturned bottom of a shoe on a last, in which the upper leg of the shoe extends downwardly substantially below the last, the combination with a jack having a toe rest and a heel post formed with downwardly extending portions spaced to provide an opening for the leg and acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a frame on which the jack is mounted for rocking movement about an axis extending close to the shoe bottom lengthwise of the shoe as the operation is transferred along the shoe, a supporting structure for the jack frame comprising a pair of interconnected links disposed at an an le to each other between the frame and base, means acting on one of said links to exert an upward pressure on the jack, and a feed lever connected to the frame to cause the other of said links to move in the direction of feed as the operation on the shoe progresses.

5. In a machine for manufacturing shoes having devices for performing an operation progressively along the upturned bottom of a shoe on a last, in which the upper leg of the shoe extends downwardly substantially below the last, the combination with a jack having a toe rest and a heel post, formed with downwardly extending portions spaced to provide an opening for the leg and acting to clamp the shoe in position by relative movement. of the heel post towards the toe rest,'a frame on whichtlie jack is mounted for rocking movement about an axis extending close to the shoe bottom lengthwise of the shoe as the-operation is transferred along the shoe, a supporting structure for the jack frame comprising a pair of interconnected links disposed at an angle to each other between the frame and base, means acting on one of said links to exert an upward pressure on the jack, a feed lever connected to the frame to cause the other of said links to move in the direction of feed as the operation on the shoe progresses, and means for holding the frame in substantially the same angular relation to the base in all positions of the feed lever.

6. In a machine for manufacturing shoes having devices for performing an operation progres sively along the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a supporting frame for the jack, a pivot on the frame for the toe rest end of the jack having its axis close to the shoe bottom and extending lengthwise of the shoe. and means on the toe restv and on the jack frame spaced from the pivot for exerting an upward pressure on the heel post end of the jack and for preventing separation of .the jack from the frame.

In a machine for manufacturing shoes having devices for performing an operation progressively along the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a supporting frame for the jack, a pivot on the frame for the toe rest end of the jack having its axis close to the shoe bottom and extending lengthwise of the shoe, a mounting on the jack along which the pivot is movable transversely to the pivot, thrust means on the frame and the toe rest end of the jack spaced from the pivot for exerting an upward pressure on the heel post end of the jack in positions of the jack relative to the frame, and

retaining means between the thrust means and pivot for preventing separation of the jack from the frame.

8. In a machine for manufacturing shoes hav nected to the jack frame, a pivot for the jaclr on the frame having its axis close to the shoe bottom extending lengthwise of the boot or shoe, means for shifting the position of the jack transversely with relation to said lengthwise axis, and a rotatable shaft mounted concentrically to pivotal connection between the jack frame and link for actuating said shifting means.

9. In a machine for manufacturing shoes having devices for performing an operation progressively along the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a supporting frame for the jack, a supporting link pivotally connected to the jack frame, a pivot for the jack on the frame having its axis close to the shoe bottom extending lengthwise of the boot or shoe, a supporting member pivotally connected to the supporting link to enable the link to move about axis transverse to the length of the shoe and substantially parallel to the shoe bottom thereof while the operation is being transferred along the bottom, a cam mounted to rotate concentrically of the point of pivotal connection of the jack frame and link for shifting the position of the jack on the frame transversely of the length of the shoe, a pulley mounted concentrically to the point of pivotal connection of the link and supporting member, and a cord extending over said pulley for rotating said cam,

10. In a machine for manufacturing shoes having devices for performing an operation progreseively along the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a supporting frame for the jack, a supporting link pivotally connected to the jack frame, a pivot for the jack on the frame having its axis close to the shoe bottom extending lengthwise of the boot or shoe, asecond supporting link pivotally connected to the first-mentioned supporting link to enable the first-men tioned link to move about an axis transverse to the length of the shoe and substantially parallel to the shoe bottom while the operation is being transferred along the bottom, a jack base to which the second-mentioned link is pivotally connected and movable about an axis parallel to the axis of the pivotal connection between the is, a rotatable shaft concentric to the pivotal 'connection between the first-mentioned link and the jack frame to actuate the jack, pulleys mounted concentrically with all of said parallel axes, and a cord extending over said pulleys for rotating said shaft.

11. In a machine for manufacturing shoes having devices for performing an operation on the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a jack supporting frame on which the jack is movable, mechanism acting when thrown into operation to clamp a shoe on the toe rest F and heel post, and mechanism for resetting the shoe clamping mechanism comprising a jack opening bar on the jack, a pawl on the jack mounted to swing towards and from the jack opening bar, a jack actuating lever on the frame,

connections on the frame for actuating the lever to cause the pawl to move against the jack opening bar, and a releasing member for disengaging the pawl from the bar and actuating lever.

12. In a machine for manufacturing shoes having devices for performing an operation on the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a jack supporting frame on which the jack is movable, mechanism acting when thrown into operation to clamp a shoe on the toe rest and heel post, and mechanism for resetting the shoe clamping mechanism comprising a jack opening bar on the jack for separating the toe'rest from the heel post, a pawl on the jack mounted to swing towards and from the jack opening bar and to move bodily against the bar to open the jack, a

on the frame for actuating the lever against the bar, and an arm on the jack for disengaging the pawl from the lever to release thev jack opening bar.

13. In a machine for manufacturing shoes hav ing devices for performing an operation on the upturned bottom of a shoe on a last, the combinag tion with a jack provided with a toe rest and aheel post acting to clamp the shoe in position by relative movement of the heel post towardst'ne toe rest, a jack supporting frame on which the jack is movable, mechanism acting when thrown into operation to clamp a shoe on the toe rest and heel post, and mechanism for resetting the shoe clamping mechanism comprising a jack opening bar on the jack for separating the toe rest from the heel post, a pawl on the jack mounted to swing towards and from the jack opening bar and to move bodily against the bar to open the jack, a jack actuating lever on the frame, connections on the frame for actuating the lever against the bar, an arm on the jack for i by relative movement of the heel post towards the toe rest, yielding means tending to move the heel post towards the toe rest, and connections in addition to the yielding means between'the heel post and the toe rest for increasing the force exerted by the yielding means as they are separated from each other.

15. In a machine for manufacturing shoes hav ing devices for performing an operation on the upturned bottom of a shoe on a last in which the upper leg of the shoe extends downwardly substantially below the last, the combination with a jack having a toe rest and a heel post formed with downwardly extending portions spaced to provide an opening for the leg and hingedly joined together along their lower portions to clamp the shoe in position by relative movement f of the heel post towards the toe rest, a link pivotally connected to the heel post adjacent the joint of the hinge between the heel post and toe rest, a lever on the toe rest having a pivotal connection with the link and acting with the link as a toggle to separate the heel post from the toe rest when moved towards aligned position, and a spring connected with the lever for swinging the lever in a direction to draw the heel post towards the toe rest.

16. In a, machine for manufacturing shoes having devices for performing an operation progressively along the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a shaft for actuating the jack, a pulley having a radially disposed notch on the shaft, a cord for rotating the pulley,. a clamp block on the cord shaped to fit the notch in the pulley, and a set the cord.

17. In a machine for manufacturing shoes hav- Q ing devices for performing an operation progresjack actuating lever on the frame, connections 75 sively along the upturned bottom of a shoe on a boot or shoe 7 screw disposed in the block I radially of the pulley for securing the block to last, the combination with a jack provided with a toe rest and a heel postacting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a shaft for actuating the jack, a crank on the shaft, a pitman on the crank,

a pivoted guideway for the pitman, and operative connections between the guideway and the jack for actuating the jack.

18. In a machine for manufacturing shoes having devices for performing an operation progressively along the upturned bottom of a shoe on a last, in which the upper leg of the shoe extends downwardly substantially below the last, the combination with a jack having a toe rest and a heel post formed with downwardly extending portions spaced to provide an opening for-the leg and acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a frame on which the jack is mounted for rocking movement about an axis extending close to the shoe bottom lengthwise of the shoe as the operation is transferred along the shoe, a sup porting structure for the jack frame comprising a base and a pair of interconnected links disposed at an angle to each other between the jack frame and the base, a rotatable shaft in the frame for actuating the jack, a cord extending parallel with both said links to rotate the shaft, and guide pulleyson one of the links for deflecting the cord to provide space for rocking movement of the jack on the frame.

19. In a machine for manufacturing shoes having devices for performing an operation progressively along the upturned bottom of a shoe on a last, the combination with a jack, a supporting frame for the jack and a supporting structure for the jack frame comprising a jack base and a pair of interconnected links disposed at an angle to each other between the frame and the base, connecting rods extending between the frame and base to hold the frame and base in the same angular relation with each other, means acting on one of the links to exert an upward pressure on the jack, and a feed lever connected to the frame to cause the frame to move in the direction of feed as the operation on the shoe progresses.

20. In a machine for manufacturing shoes having devices for performing an operation progressively along the upturned bottom of a shoe on a last, the combination with a jack, a supporting frame for the jack and a supporting structure for the jack frame comprising a lack base and a pair of interconnected links disposed at an angle to each other between the frame and the base, connecting rods extending between the frame and base to hold the frame and base in the same angular relation with each other, means acting on one of the links to exert an upward pressure on the jack, a feed lever connected to the frame to cause the frame to move in the direction of feed as the operation on the shoe progresses, and means for changing the angular position of the base as the operation progresses to present the shoe properly to the operating devices.

21. In a machine for manufacturing shoes having devices for performing an operation progressively along the upturned bottom of a shoe on a last, the combination with a jack, a supporting frame for the jack and a supporting structure for the jack frame comprising a jack base, a link connected to the frame and a rod pivotally connected with the frame at a distance from the link the jack through said link, a feed leverconnected to the frameto cause the frame to move in the direction of feed, and means for changing the angular position of the base as the operation progresses to present theshoe properly to the operating devices.

extending parallel to said link to hold the frame and base in the same angular relation with each other, means for exerting an upward pressure on .22. A machine for use in the manufacture of shoes having, in combination, devices for performing an operation progressively along the upturned bottom of a shoe on a last, a shoe supporting jack, aframe on which the jack is movable about a pivotal axis transverse to the length of and substantially parallel to the bottom surface of a shoe on the jack, a jack base and a pair of jack frame su porting links one of which is pivoted to swing on the base with a common pivot between the links, the axis of which is parallel to a pivot between the other of said links on the frame, and means for maintaining the frame and the base in the same angular relation to each other as the position of the frame is changed as the operation on the shoe progresses.

23. A machine for use in the manufacture of shoes'having, in combination, devices for performing an operation progressively along the upturned bottom of a shoe on a last, a shoe supporting jack, a frame on which the jack is movable about a pivotal axis transverse to the length of and substantially parallel to the bottom surface of a shoe on the jack, a jack base and a pair of jack frame supporting links one of which is pivoted to swing on the base with a common pivot between the links, the axis of which is parallel to a pivot between the other of said links on the frame, and connections between the base and frame comprising connecting rods and a lever fulcrumed concentrically to the common pivot between the supporting links.

In a jack having a toe rest and a relatively movable heel post for a shoe on a last, in which the upper or leg portion extends substantially beyond the last, acting to secure the shoe by movement of the heel post towards the toe rest and to locate the toe of the shoe in predetermined relation to the toe rest, the combination with a hinge between the toe rest arm and the eel post at the lowermost portions of the toe rest and heel post and a link curving around the space between the toe rest and heel post for drawing the heel post towards the toe rest with a shoe clamping pressure.

25. In a machine for manufacturing shoes having devices for performing an operation on the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a jack supporting frame on which the jack is movable, mechanism acting when thrown into operation to clamp a shoe on the toe rest and heel post, and mechanism for resettin the shoe clamping mechanism comprising a jack opening bar on the jack for separating, the toe rest from the heel post, a jack actuating lever on the frame, a pawl formed with a cam surface and a ledge on one end, and a lever on the jack for pivotally supporting the pawl in a position with relation to the jack actuating lever to cause the jack actuating lever first to engage the cam surface on the pawl to swing the pawl about its pivot on its supporting lever and then to engage the ledge and move the pawl bodily against the jack opening bar.

26. In a machine for manufacturing shoes having devices for performing an operation on prising a jack opening bar on the jack for separating the toe rest, from the heel post, a jack actuating lever on the frame, a pawl formed with resetting the shoe clamping mechanism coma cam surface and a ledge on one end, a lever on the jack for pivotally supporting the pawl in a position with relation to the jack actuating lever to cause the jack actuating lever first to engage the cam surface on the pawl to swing the pawl about its pivot on its supporting lever and then to engage the ledge and move the pawl bodily against the jack opening bar, a toe supporting and clamping chute on the toe rest, and connections between the pawl supporting lever and the toe clamping chute for retracting the chute when the pawl is moved bodily againstthe jack opening bar.

'27. In a machine for manufacturing shoes having devices for performing an operation progressively along the upturned bottom of a shoe on a last in which theupper leg of the shoe extends downwardly substantially below the last, the combination with a jack having a toerest and a heel post formed with downwardly eX- tending portions spaced to provide an opening for the shoe leg and acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a supporting frame on which the jack is mounted for rocking movement about, an axis extending close to the shoe bottom lengthwise of the shoe as the operation is transferred along the shoe bottom and a supporting structure for the jack frame comprising a base, a pair of interconnected links disposed at an angle to each other between the frame and base, a rotatable shaft in the frame for actuating the jack, a pulley mounted for rotation concentric with the point of interconnection between the links, a cord extending from the rotatable shaft and surrounding the pulley, and guide pulleys between the shaft and the first-mentioned pulley for'deflecting the cord to provide space for swinging movement of the jack about its pivot on the frame.

28. In a. machine for manufacturing shoes having devices for performing an operation on the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a shouldered toe end gage on the toe rest for locating the shoe lengthwise and heightwise on the jack. and a chute on the toe rest arranged to guide the shoe against the shoulder on the end gage and to secure the toe of the shoe against lateral movement on the toe rest when the heel post and toe rest are moved towards each other with a shoe clamping force.

29. In a machine for manufacturing shoes having devices for performing an operation on the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a shouldered toe end gage 'on the toe vrest for locating the shoe lengthwise andheightwise on the jacln'an arcuate chute, the trough of which extends lengthwise of the shoe to bring the last supported shoe upper against the end gage,'and means for actuating the chute yieldingly against the upper to bring the tread surface of the shoe against the shoulder on the end gage. Y i- 1 30. In a machine for manufacturing shoes having devices for performing an operation on the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and.

a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a shouldered toe end'gage on'the toe rest for locating the shoe lengthwise and height wise on the jack, an arcuate chute; the trough of which extends lengthwise of the shoe to bring the last supported shoe upper against the end gage,

means for actuating the chute yieldingly against the upper to bring the shoe against the shoulder on the end gage, andmea'ns for locking the chute against the upper during clamping action of the jack.-

ing devices for performing an operation on the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in posi- I tion by relative movement of the heel post t0- wards the toe rest, a chute on the toe rest arran ed to engage the last supported shoe upper, a toe endgage on the toe rest for locating the tread surface of the shoe heightwise of the shoe, and means for raising the chute to bring the tread surface of the shoe against thetoe gaged uring lengthwise of the shoe, yielding means for'raising the chute to bring the tread surface of the shoe against the toe gage, and means actuated by lengthwise movement of the shoe against the toe gage to unlock the chute duringclampingaction' of the jack and to lock the chute in raised positionfas a result of pressure on the toe rest exerted in clamping the shoe.

33. In a machine for manufacturing shoes having lasting devices acting on the upturned bottom of a shoe, the upper of which is'loosely sup-- ported on a last and temporarily secured thereto by at least three fastenings, one of which is inserted at the tip of the toe and two of which are inserted at either side of the toe to form the upper into a pair of projecting ears at either side of the shoe toe tip, the combination withfa jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, and anine clined chute on the toe rest arranged'for engagement with the projecting ears of the upper to cause the last supported upper to be aligned with the trough of the chute as the heel post and toe rest are moved towards eachother during clamping action of the jack. 7

34. In a machine for manufacturing shoes hav'-' ing lasting devices acting on the upturned bottom of a shoe, the upper of which is loosely supported 31. In a machine formanufacturingshoes havon a last and temporarily secured thereto by at least three fastenings, one of which is inserted at the tip of the toe and two of which are inserted at either side of the toe to form the upper into a pair of projecting ears at either side of the shoe toe tip, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relativ movement of the heel post towards the toe rest, and an inclined arcuate chute, the trough of which extends lengthwise of the shoe, with a transverse curvature less than the transverse curvature of the largest size of shoe operated upon for engaging the projecting ears of the upper to guide the toe of the shoe into the central trough of the chute during clamping action of the jack.

35. In a machine for manufacturing shoes having lasting devices acting on the upturned bottom of a shoe, the upper of which is loosely supported on a last and temporarily secured thereto by at least three fastenings, one of which is inserted at the tip of the toe and two of which are inserted at either side of the toe to form the upper into a pair of projecting ears at either side of the shoe toe tip, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, an inclined chute on the toe rest arranged for engagement with the projecting ears of the u per to cause the last supported upper to be aligned with the trough of the chute as the heel post and toe rest are moved towards each other during clamping action of the jack, and a last pin on the heel post constructed to enable the toe of the shoe to move he ghtwise of the last while holding the shoe against substantial rotation about its lengthwise axis.

36. In a machine for manufacturing shoes having devices for performing an operation on the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, and a last pin having a dimension transverse to the last length of a size to fit closely within the pin hole of the last and a dimension lengthwise of the last substantially less than the transverse dimension to enable the shoe to rock about a transverse axis while being located on the jack while holding the shoe against substantial rotation about a lengthwise axis.

37. A shoe supporting jack having, in combination, a toe rest and a heel post acting to clamp a shoe in position by relative movement of the heel post towards the toe rest, and a last pin secured to the heel post having undercut portions to cause the pin to grip the last within the last pin hole with substantial pressures against those sides of the pin hole nearest the sides of a last and to clear those sides of the pin hole in alignment with the lengthwise dimension of the last.

38. In a machine for manufacturing shoes having devices for performing an operation on the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel post towards the toe rest, a chute on the toe rest, means for actuating the chute against the upper of the shoe to secure the toe of the shoe against lateral movement on the toe rest when the heel post and toe rest are moved towards each other with a clamping force, and mechanism for retracting the chute from its actuated position.

39. In a machine for manufacturing shoes having devices for performing an operation on the upturned bottom of a shoe on a last, the combination with a jack provided with a toe rest and a heel post acting to clamp th shoe in position by relative movement of the heel post towards the toe rest, a chute on the toe rest arranged to engage the last supported shoe upper, a toe end gage on the toe rest for locating the tread surface of the shoe heightwise of the shoe, means for raising the chute to bring the tread surface of the shoe against the toe gage during clamping action, and a last pin on the heel post formed with a diameter transverse to the shoe length to fit a circular pin hole in the last and provided with a cutaway surface to enable the toe of the shoe to be raised and lowered with the chute while holding the shoe against substantial rocking movement about an axis extending lengthwise of the shoe.

40. In a machine for manufacturing shoes having devices for performing an operation on the upturned bottom of a shoe mounted on the last, the combination with a jack provided with a toe rest and a heel post acting to clamp the shoe in position by relative movement of the heel Dost towards the toe rest, and a last pin on the heel post formed with a diameter transverse to the shoe length to fit a circular pin hole in the last and provided with an undercut portion to enable the toe of the shoe to be raised and lowered while holding the shoe against substantial rocking movement about an axis extending lengthwise of the shoe.

41. In a machine for manufacturing shoes having devices for performing an operation on a shoe, the combination with a shoe supporting jack and mechanism for actuating the jack comprising a cord, a slotted pulley about which the cord passes, a removable cord clamping block secured within the slot of the pulley by the tension of th cord, and a set screw for clamping the cord in the block arranged radially of the pulley when the block is in the slot.

42. In a machine for manufacturing shoes having devices for performing an operation on a shoe, the combination with a shoe supporting jack and mechanism for actuating thejack comprising a cord, a slotted pulley about which the cord passes, a notched cord clamping block removably secured within the slot of the pulley by the tension of the cord, 2. set screw arranged radially of the pulley when the block is in the slot and an I- shaped clamp bar for the cord in the notch of the block with the ends of the I outside the notch acting on the bar to prevent lengthwise displacement in the notch.

ROBERT H. LAWSON.