US2254369A - Machine for shaping uppers over lasts - Google Patents

Description

p 1941- B. JORGENSEN I MACHINE FOR SHAPING UPPERS OVER LASTS 2 Sheets- Sheet 1 fiwavmq Filed May 7, 1940 fiav i w y4 I m 5% Patented Sept. 2, 1941 rice MACHINE FOR SHAPING UPPERS OVER LAST Bernhardt Jorgensen, Marblehead, Mass, assignor to United Shoe Machinery Corporation, Boroughof Flemington, N. J a corporation of New Jersey Application May 7, 1940, Serial No. 333,792

30 Claims.

the insole close to the bottom of the last, especially along the shank portion of the insole, so that the upper will be properly lasted over them. In various novel aspects, however, the invention is not limited to means for, controlling the shank portion of an insole, nor is it limited to machines of the particular type to which it is herein illustrated as applied.

A machine constructed as disclosed in the above-mentioned Letters Patent is provided with opposite side-lasting mechanisms which receive positioning movements towardeach last and shoe widthwise thereof prior to the starting of the power operation of the machine, so that they assume operating positions determined by. the shoe, the mechanisms including fingers which act thereafter through flexible straps to lay the margin of the upper inwardly over theinsole. After thus operating on the upper at the shank portion of the shoe, the side-lasting mechanisms are moved lengthwise of the shoe toward its toe end and then operate a second time at the ball portion of the shoe. It is desirable especially at the shank portion of the shoe to press the side marginal portions of the insole against the bottom of the last preparatory to the lasting of the upper inwardly over them, and accordingly there has been provided heretofore a shank-holddown device which is supported independently of the side-lasting mechanisms and is swung downwardly into engagement with the insole about an I axis extending widthwise of the shoe shortly after the starting of the power operation of the machine, as disclosed in the above-mentioned Letters Patent.

An object of the present invention is to provide improved holddown means adapted to operate on shoes of different sizes and shapes in such manner as to produce the most satisfactory results in the lasting of each shoe. For the purposes in View, the construction herein shown comprises holddowns which are supported respectively by the opposite side-lasting mechanisms themselves and areso controlled as to act in the most efiective manner on the portions of the margin of the insole over which the margin of the upper is laid. by these mechanisms. In order that there may be ample room for the presentation of the shoe in position to be operated upon, provisionisafiorded for spacing the holddowns. initially well, apart widthwise of the shoe and for impartingto them additional positioning movements widthwise of the shoe relatively to the side-lasting mechanisms when these mechanisms receive .their positioning movements toward the sidesof, the shoe. In this manner the holddowns are carried. to positions. accurately determined with. reference to the side marginal portions of the insole, provisionbeing afiorded for adjustments to vary the positions which they thus assume. Thereafter, shortly after the beginning of the power operation of the; machine, the holddowns are moved heightwise of the shoe into engagement with the insole, the

construction herein shown comprising for thisQ purpose devices which are carried by the sidelasting mechanisms and are operated by compressed air. In proper time relation to the laying of the margin of the upper inwardly over the insole theseidevices are so controlled as to releasethe holddowns, whereupon the latter are withdrawn from the paths of movement of the overlaying members. The movement of the holddowns intoengagement with the insole thus occurs only in the operation of the side-lasting mechanisms at the shank portion of theshoe,

the devices which are operated by compressed air remaining idle during the second operation of these mechanisms at the ball portion of the shoe where there is no special need for controlling the margin of the insole. While compressed air is thus used in the machine herein shown for operating the holddowns, the invention is not limited to the use of operating fluid of that particular character. 1

In accordance with a further feature, the invention provides a holddown of novel construction such as to insure that the portion of the margin of an insole controlled thereby will be held throughout its len th in proper relation to the last. For the purpose in View, flexible resilient them, both the wire and the springs being flexibly yieldable heightwise of the last to conform to the contour of the last and insole and the holddown being pressed upon the insole by force applied thereto between the two springs.

The above and other features of the invention, including variou novel details of construction and combinations of parts, will now be more particularly described with reference to the accompanying drawings and thereafter pointed out in the claims.

In the drawings,

Fig. 1 is a view partly in vertical section from front to rear and partly in elevation of portions of a machine of the illustrated type with the present invention embodied therein, th parts being shown in the positions which they occupy shortly after the starting of the power operation of the machine;

Fig. 2 is a view for the most part similar to a portion of Fig. 1, but showing the parts as they 7 'appearimmediately prior to the starting of the machine;

Fig. 3 is a view similar to a portion of Fig. 2,

but showing the parts as they appear before'the side-lasting mechanisms have received their positioning movements toward the sides of the shoe;

Fig. 4 is a view partly in plan and partly in section on the line IVIV of Fig. 2; and

Fig. 5 is a section substantially on the line V-V of Fig. 2.

As fully disclosed in the previously mentioned Letters Patent, a machine of the illustrated type is provided with shoe-supporting means, not herein shown, which is moved a short distance downwardly with the shoe early in the power operation of the machine by members, also not herein shown, which engage the bottom of the shoe; For lasting the sidesof the shoe between its toe and heel-end portions such a machine is provided with opposite side-lasting mechanisms which in the construction herein shown are for the most part substantially like the mechanisms disclosed in the above-mentioned Letters Patent, although differing therefrom in certain respects as will be hereinafter explained. Each of these side-lasting mechanisms comprises a casing 2 mounted to swing toward and from the side of the shoeon a rod 4 which is movable to carry the casing and other parts of the mechanism lengthwise of the shoe toward its toe end preparatory'to a second operation of the mechanism on the shoe after it has operated on the upper at the shank portion of the shoe. Mounted to swing about each rod 4 within the casing 2 is an arm 6 arranged to control a plurality of lasting fingers 8 and a plurality of flexible lasting straps [0 extending over the ends of the fingers. In the construction herein shown the fingers 8 of each side-lasting mechanism are mounted between their inner and outer ends for swinging movements heightwise of the shoe about a rod 12 supported in two upwardly extheir'other ends the straps H) are fastened to blocks 24 pivotally mounted at 26 on arms 28 which are pivoted at 30 on the casing 2 for swinging movements laterally of the shoe, some of the arms being controlled by spring-pressed plungers 32 and others by springs 34 against the resistance of which the arms may yield laterally of the shoe in response to pressure of the shoe on the straps and the blocks 24. Underlying the fingers 8 are spring-pressed plungers 36 which tend to swing the inner end portions of the fingers upwardly and thus assist in holding the straps H1 in a taut condition, the plungers being mounted in the bracket 16. Initially th casings 2 and the arms 6 of the side-lasting mechanisms are held in retracted positions with the straps I0 and the blocks 24 spaced from the shoe, as illustrated in Fig. 3 with reference to one of the mechanisms, and prior to the starting of the power operation of the machine, under control of means hereinafter described, the arms and the casings'are swung inwardly to carry the straps into engagement with the sides of the shoe as illustrated in Fig. 2. Early in the power operation of the machine the shoe is forced downwardly to cause the straps to wipe the upper heightwise of the last, and thereafter, by further swinging movements ofthe arms 6, the fingers 8 are forced inwardly over the shoe bottom to cause them to act through the straps M to lay the'margin of the upper inwardly over the insole into position to adhere to the insole.

The casings "2 are connected together by a spring 38 which tends to swing them inwardly tends through a slot 42 in the casing 2 andinitially engages the casing at the outer end of the slot. For controlling and operating the arms 6 there are provided toggle links 44 which are connected to pins 46 on the arms and are pivotally and slidingly mounted at their inner ends -on a rod 48. This rod is supported on the upper end of a depending link 50 which is pivotally connected atits lower end to a lever 52 mounted to swing about a rod 54 on the frame. The lever 521s connected by a link 56 to another lever 58 mounted to swing about a shaft 60 with which the machine is provided. The lever 58 carries a roll 62 arranged to be engaged by a path cam 64 formed in a cam wheel 56 fast on a poweroperated cam shaft 68. Initially the side-lasting mechanisms are held retracted from the shoe as illustrated in Fig. 3 by a latch lever 10 which'by engaging the end of the lever 52 underneath holds this lever uplifted with the toggle 44 in a substantially straightened condition. A plunger 12 against which the operator pushes prior to the starting of the power operation of the machine is arranged to act through a rod 14 onthe leverlll to swing this lever out from under the lever 52, thus releasing the side-lasting mechanisms and permitting them to be swung inwardly by the spring 38 to apply the straps II] to the sides of the shoe in'the manner illustrated in Fig. 2. The path cam 64 is enlarged at 16 to permit such positioning movements of the mechanisms. Shortly after the beginning of the power operation of the machine the shoe is forced downwardly to cause the straps I0 to wipe the upper heightwise of the last,-the shoe thus assuming the position illustrated in Fig. 1. Thereafter the cam 64 acts on the lever 58 to swing the arms 6 farther inwardly and thus cause the fingers 8 to act through the straps ID to lay the margin of the upper over the insole. The cam is so formed as to impart such inward movements to the arms twice in each cycle of operations of the machine and to swing the arms and the casings 2 outwardly away from the shoe between the two inward movements of the arms to permit the side-lasting mechanisms to be advanced lengthwise of the shoe by the rods 4 from their first operating positions at the shank portion of the shoe to their second operating positions at the ball portion of the shoe.

When the lasting fingers 8 are forced inwardly over the bottom of the shoe as above'described, the straps I controlled by the springs 20 tend to swing the inner end portions of the fingers downwardly toward the shoe bottom by their pressure on the fingers. The machine is further provided with means arranged to act on the outer end portions of the fingers to assist in swinging their inner ends downwardly and thus insure that adequate downward pressure will be applied -to the margin of the upper. For this purpose each of the toggle links 44 is provided with an arm I8 extending outwardly beyond the pin 46 and pivotally connected to a sleeve member 80 slidingly mounted on an upwardly extending rod 82. Each rod 82 has fast on its upper end a holder 84 guided between a pair of lugs 86 on the arm 6, only one of each pair of lugs being visible in the drawings. Pins 88, only one of which is shown, extend inwardly from the lugs 86 over portions of the holder 84 and thus confine the holder to the space between the lugs while permitting it to move upward or downward relatively to the arm 0. Supported on each holder 84, in the manner fully illustrated in the previously mentioned Letters Patent, are members 00 arranged respectively to underlie the outer ends of the several fingers 8 associated therewith and thus to swing these ends of the fingers upwardly to impart corresponding downward movements to their inner ends in response to upward movement of the holder. Such upward movement is imparted to the holder 84 through a spring 92 mounted on the rod 82 between the holder and the sleeve member 80. Initially the members 90 are spaced below the fingers 8, as illustrated in Fig. 3, and, accordingly, when the side-lasting mechanisms are moved inwardly toward the shoe by the spring 38 upon their release by the movement of the plunger I2, the members 90 are moved upwardly toward the fingers without acting on ,the fingers. When further swinging movements are thereafter imparted to the toggle links 44 in the power operation of the machine to cause the arms 6 to force the fingers 8 inwardly over the insole, the upward swinging movements imparted to the arms I8 by the swinging of the toggle links serve to raise the holders 80 still farther and thus to cause the members 90 to swing the fingers 8 in the directions to apply downward pressure to the margin of the upper over the insole.

As thus far described the construction herein shown, except as noted, is substantially as disclosed in the previously mentioned Letters Patent. For purposes of this invention the machine is provided with two holddowns 94 arranged to engage the opposite side marginal portions of the insole along the shank portion of the shoe bottom to insure that the insole will be close to the bottom of the last as the margin of the upper is laid inwardly over it by the fingers 3 and the straps I0. Each holddown 94 comprises a pair of coil springs 96 in alinement with each other and surrounding a resilient wire 98 of smaller diameter than the openings in the springs. The wire is supported midway between its opposite ends, in a location between the springs, by a holder I00 which is fast on a plate I02. The inner ends of the two springs are mounted on studs I04 projecting from the holder I00 and of greater diameter than the wire 98, and their outer ends are mounted on studs I00, also of greater diameter than the wire, which are fast on the wire and are provided with headsto hold the springs in place. It will be evident, therefore, that when the holddown is applied to the insole the springs 96 and the wire 98 are together flexibly yieldable heightwise of the shoe to conform to the contour of the last and insole, portions of the wire and of the springs being also relatively yieldable.

Each plate I02 is curved so that the end portion thereof to which the holddown is attached extends downwardly toward the shoe and its other end portion extends outward laterally of the shoe. The outer end portion of the plate is fastened to a block I04, and extending outwardly from this block in fixed relation thereto are two bars I06 spaced a short distance apart. Fast in the block I04 is a rod I08 the opposite ends of which extend into slots IIO formed in the side portions I4 of the bracket I S. It will thus be seen that the block I04 and the plate I 02 serve as one arm of a lever III of which the two bars I06 serve as the other arm, the lever being mounted for swinging movement heightwise of the shoe about the axis of the rod I08. Extending into slots II2 provided in the bars I06 are studs II4 which are formed on a plate II6 fasened by means of a screw I I8 in a slot in the upper end of a piston I20 which is movable upwardly and downwardly in a cylinder I22 fast on the casing 2. When the piston is moved upwardly, therefore, the holddown 94 is swung downwardly toward the shoe, and when the piston is lowered the holddown is lifted from the shoe.

Pivotally mounted on each rod I00 are two links I24 which extend outwardly from the rod and are pivotally connected at their outer ends to downwardly extending arms I 20 (Fig. 5) of bell-crank levers I28 mounted to swing about a rod I30 which is supported in the sides I4 of the bracket IS. The bell-crank levers I28 have other arms I32 which are pivotally connected to a yoke member I34, and through an opening in this yoke member extends a rod I 36 which is threaded at its lower end in the previously mentioned holder 84. Between this yoke member and a collar I30 fast on the rod I36 is a spring I40, and between the yoke member and a hand wheel I 42 fast on the upper end of the rod I30 is a spring I44. It will thus be seen that through the springs I40 and I44 swinging movements are imparted to the bell-crank levers I28 in response to upward and downward movements of the rod I30 resulting from the upward and downward movements of the holder 84 to which the rod is fastened. Accordingly, when the holder 84 of each of the opposite side-lasting mechanisms is moved upwardly toward the fingers 8 as these mechanisms are moved inwardly toward the shoe by the spring 38 prior to the starting of the power operation of the machine, the corresponding upward movement of each rod I30 serves through the bell-crank levers I28 and the links I24 to move the rod I08 inwardly along the slots H0 and thus by bodily movement of the lever II I to move the holddown 94 from an initial retracted venting the valve from turning on the tube.

position in which it is substantially in engagement with the straps I as illustrated in Fig. 3, to a position substantially over the marginal portion of the insole, as illustrated in Fig. 2. As the holddown is thus moved inwardly, the bars I06 slide along the studs II4 of the plate I I6 which is fast on thepiston I20. The position to which each holddown isthus carried may be varied by turning the corresponding rod I36by means of the hand wheel I42 thereon.

Each piston I20 is held normally in its lowest position in the cylinder I22'by a spring I46 connected at its lower end to the cylinder and at its upper end to an arm I48 fastened to the piston by the screw II8. Accordingly, the holddowns 94 are held upraised when they are in their initial positions and as they are moved inwardly to positions over the insole as illustrated in'Fig; 2. Shortly after the starting of the power operation of the machine the two' pistons I20 are forced upwardly by compressed air admitted .to the cylinders I22 to move the holddowns into engagement with the insole as illustrated in Fig. 1. For this purpose the two cylinders communicate through pipes I50-with a pipe II leading to a chamber I52 (Fig. 2) formed partly in a plate I54 and partly in a tube I56 fastened tightly between the plate and a bracket I58 by bolts I60 which secure the plate to the bracket. The bracket I58 is supported in a fixed position on a rod I62 (Fig. 1) with which the machine is provided. The chamber I52 in the tube I56 is separated from another chamber I64 formed partly inthe tube and partly in the bracket I58 by a web I66 in the tube. The chamber I64 communicates through a pipe I68 with any suitable source of compressed air which may be an accumulator fed by a pump on the machine or may be a source of factory supply. Mounted on the tube I56 is a sleeve valve I provided with an annular chamber I12 arranged to communicate with ports I14 extending through the tube I56 into the chamber I64 and wardly over the insole, whereupon the cam I92 passes beyond the roll I90 and the valve'is returned to its lowest position by the spring I88 to stop the delivery of compressed air to the cylinders l22and to permit the exhaust of the air in thecylinders through the port I18. This permits the holddowns to be, moved upwardly away from the insole by the springs I46.

The manner of operation of the machine, inso far asvit is of interest with reference to the present invention, will now be briefly summarized. As more fully disclosed in the previously mentioned Letters Patent, the operator moves the plunger '12 to release the opposite side-lasting mechanisms before starting the power operation of the machine. A machine of this type is commonly used for lasting tennis shoes or the like the uppers and insoles of which are loosely assembled on the lasts, and when the operator thus releases the side-lasting mechanisms he is'accustomed to control the upper with his fingers until it is clamped against the sides of the last by these mechanisms the inward movements of which are effected by the action of the spring 38 on the casings 2. As illustrated in Fig. 2, the upper is thus clamped by the several arms 28 acting through the blocks 24 and the straps I0, the plungers 32 and the springs 34 which control these arms yielding more or less until their rewith ports I16 extending through the tube into the chamber I52. When the sleeve valve I10 is in its lowest position against the bracket I58, as illustrated in Fig. 2, communication between the ports I14 and the ports I16 through the annular chamber I12 is interrupted, and one of the ports I16 registers with an exhaust port I18 in the valve, so-that the pistons I20 are maintained by the springs I46 in their lowest positions. The valve I 10 is controlled by a lever I80 the outer end of which is forked and carries pins I82 extending into' an annular groove I84 in the valve. Suitable. means, not shown, is provided for pre- The lever I80 is pivoted at I86 on the bracket I58 and is controlled by a spring I88 which tends to hold the valve in its lowest position. Mounted on the inner end of the lever is a roll I90 arranged to be engaged by a cam I92 on the cam shaft 68. This cam is so arranged that shortly after the starting of the power operation of the machine, substantially at the time when the shoe is moved downward relatively to the straps I0 as hereinbefore described, the valve I10 is moved upwardly by the lever I80 to establish communication between the ports I14 and I16 and thus to admit compressed air into the cylinders I22 to move the pistons I20 upwardly and thereby to move the holddowns 94 into their operative positions. The valve I10 is held in this position until the fingers 8 have started to lay the margin of the upper'insistance balances the force of the spring 38. By reason of the swinging of the toggle links 44 as the side-lasting mechanisms are thus moved inwardly toward the shoe, the holders 84 are moved upwardly toward the outer end portions of the lasting fingers 8 and by their upward movements cause the rods I36 mounted thereon to swing the bell-crank levers I28 and thereby to move the holddowns 94 relatively to the side-lasting mechanisms from the positions illustrated in Fig. 3 to the positions illustrated in Fig. 2 where they are over the bottom face of the last ready to'engage the side marginal portions of the insole when they are thereafter swung downwardly.. While holding the insole in place with his fingers the operator then starts the power operation of the machine. Immediately after the starting of the machine the last and shoe are moved downwardly from the position illustrated in Fig. 2 to that illustrated in, Fig. 1, causing the straps I0 to wipe the sides of the upper heightwise of the last toward the edges of the shank portion of the insole. At substantially the same time the valve :I10 is operated by the cam I92 to admit compressed air to the cylinders I22, so that the pistons I20 are forced upwardly and move the holddowns 94 into positions to press the side marginal portions of the insole against the last, as illustrated in Fig. 1. Thereafter the cam 64 swings the inner ends of the toggle links 44 farther downwardly to swing the arms 6 inwardly toward the shoe relatively to the casings 2 and thereby to cause the fingers 8, acting through the straps I0, to lay the marginal portions of the upper inwardly over the insole. As the fingers are thus moved inwardly their inner end portions are swung downwardly by further upward movements of the holders 84 to cause them to press the upper down on the insole. In such further upward movements of the holders 84 the rods I36 act on the springs I40 with a tendency to move the holddowns inwardly over the insole, but the holddowns remain close enough to the straps I0 to press the marginal portions of the upper'against the straps and thus insure that the upper will be lasted tightly over the edges of the insole. Just after the fingers 8 begin to lay the margin of the upper inwardly over the insole the cam I 92 releases the valve I10, whereupon the valve is returned to its initial position and the air in the cylinders I22 is exhausted through the port I18 of the valve. The holddowns 94 are, accordingly, lifted by the springs Hi6 away from the insole out of the paths of movement of the fingers 8 and the straps l0. Thereafter, in the continued operation of the machine, the side-lasting mechanisms are moved outwardly away from the shoe, are moved lengthwise of the shoe toward its toe end, and are again operated to last the ball portion of the shoe, as disclosed in the previously mentioned Letters Patent. During these operations the holddowns 94 are maintained idly in their upraised positions, although moving outward and inward widthwise of the shoe, since the valve I10 remains in its exhaust position. It will be understood that at the end of the cycle of operations of the machine the holddowns are again positioned as illustrated in Fig. 3.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for shaping uppers over lasts, the combination with lasting mechanism having means for laying the margin of an upper inwardly over an insole on a last, and means for imparting to said lasting mechanism positioning movement toward each last and shoe prior to its operation on the upper, of a holddown carried by said mechanism for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, and automatic means for imparting to said holddown in addition to positioning movement received from said lasting mechanism a further movement relatively to said mechanism in substantially the same direction as the positioning movement of said mechanism to position it in proper relation to the margin of the insole.

2. In a machine for shaping uppers over lasts, the combination with lasting mechanism having means for laying the margin of an upper inwardly over an insole on a last, and means for im parting to said lasting mechanism positioning movement toward each last and shoe prior to its operation on the upper, of a holddown carried by said mechanism for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, and means also carried by said lasting mechanism for moving the holddown relatively to said mechanism to a position opposite the bottom face of the last in the course of the positioning movement of said mechanism.

3. In a machine for shaping uppers over lasts, the combination with lastingmechanism having means for laying the margin of an upper inwardly over an insole on a last, and means for imparting to said lasting mechanism positioning movement toward each last and shoe prior to its operation on the upper, of a holddown carried by said mechanism for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, automatic means for imparting to said holddown in addition to positioning movement received from said lasting mechanism a further movement relatively to said mechanism to a position opposite the bottom face of the last, and additional means for moving the holddown heightwise of the last into engagement with the insole.

4. In a machine for shaping uppers over lasts, the combination with lasting mechanism having means for laying the margin of an upper inwardly over an insole on a last, and means for imparting to said lasting mechanism positioning movement toward each last and shoe prior to its operation on the upper, of a holddown carried by said mechanism for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, means also carried by said lasting mechanism for automatically moving the holddown relatively to said mechanism to a position opposite the bottom face of the last in the course of the positioning movement of said mechanism, and additional means carried by said lasting mechanism for thereafter moving the holddown heightwise of the last into engagement with the insole.

5. In a machine for shaping uppers over lasts, the combination with lasting mechanism having means for laying the margin of an upper inwardly over an insole on a last, and means for imparting to said lasting mechanism positioning movement toward each last and shoe prior toits operation on the upper, of a holddown for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, a lever supported on said lasting mechanism and on which said holddown is mounted, means for imparting to said lever bodily movement relatively to said lasting mechanism to carry the holddown to a position opposite the bottom face of the last in the course of the positioning movement of said mechanism, and means carried by said lasting mechanism for thereafter swinging said lever heightwise of the last to move the holddown into engagement with the insole.

6. In a machine for shaping uppers over lasts, the combination with lasting mechanism having means for laying the margin of an upper inwardly over an insole on a last, and means for imparting to said lasting mechanism positioning movement toward each last and shoe prior to its operation on the upper, of a holddown carried by said mechanism for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, means for imparting to said holddown in addition to positioning movement received from said lasting mechanism a further movement relatively to said mechanism to a position opposite the bottom face of the last, and fluid-operated means carried by said lasting mechanism for thereafter moving the holddown heightwise of the last into engagement with the insole.

7. In a machine for shaping uppers over lasts, the combination with lasting mechanism having means for laying the margin of an upper inwardly over an insole on a last, and means for imparting to said lasting mechanism positioning movement toward each last and shoe prior to its operation on the upper, of a holddown carried by said mechanism for engaging the marginal portion of the insole and pressing it against the lon'the margin of u per.

bottom of the last before the margin of the upper islaid inwardly over it, means also carried by said lasting mechanism for moving the holddown relatively to said mechanism to a position opposite the bottom face of the last in the course of the positioning movement of said mechanism, and a cylinder-and-piston device carried by said lasting mechanism for thereafter moving the holddown heightwise of the last into engagement with the insole by fluid pressure.

' 8. In a machine for shaping uppers over lasts, the combination with lasting mechanism having means for laying the margin of an upper inwardly over an insole on a last, and means for imparting to said lasting mechanism positioning movement toward each last and shoe prior to its operation on the upper, of a holddown carried by said lasting mechanism for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, and means for moving said holddown heightwise of the last into engagement with the marginal portion of the insole after the positioning movement of said lasting mechanism.

9. In a machine for shaping uppers over lasts, the combinationwith lasting mechanism having means for laying the margin of an upper inwardly over ran-insole on a last, and means for imparting to said lasting mechanism positioning movement toward each last and shoe prior to its operation onthe upper, of a holddown carried by said lasting mechanism for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper. is laid inwardly over it, and fluid-operated means also carried by said lasting mechanism for moving said holddown into engagement with the insole.

' 10. In a machine for shaping uppers over lasts, the combination with lasting mechanism having means for laying the margin of an upper inwardly over an insole on a last, and means for imparting to said lasting mechanism positioning movement toward each last and shoe prior to its 12. In a machine for shaping uppers over lasts, the combination with means for laying the margin of an upper inwardly over an insole on a last, of a holddown for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, a lever supporting said holddown andmounted for swinging movement heightwise of the last to carry the holddown into engagement with the insole, and a cylinder-andpiston device for thus swinging said lever by fluid pressure, said lever being bodily movable relatively to said cylinder-and-piston device to carry the holddown to a position substantially opposite the bottom face of the margin of the insole.

13. In a machine for shaping uppers over lasts, the combination with means for laying the margin of an upper inwardly over an insole on a last, of a holddown for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, a device movable by pressure of operating fluid thereon for moving said holddown into' engagement with the marginal portion of the insole and for holding it in such engagement, a spring against the resistance of which said device is thus movable, and automatic means for releasing the operating fluid from said device at a predetermined time in the operation of the overlaying means on the margin of the upper-to permit the holddown to be withdrawn from the insole by said spring.

14. In a machine for shaping uppers over lasts, the combination with opposite side-lasting mechanisms each having means for laying the margin of an upper inwardly overan insole on a last,

, and means for moving said lasting mechanisms operation on the upper, of a holddown for engaging the marginal portion of the insole and pressing it against the bottom of the last before the' margin of the upper is laid inwardly over it, "a lever carried by said lasting mechanism and on which said holddown is mounted, and a cylinder-and-piston device also carried by said lasting mechanism for swinging said lever heightwise of the last by fluid pressure to move the holddown into engagement with the. insole.

11. In a machine for shaping uppers over lasts, the combination with lasting mechanism having means for laying the margin of an upper inwardly over an insole on a last, and means for imparting to said lasting mechanism positioning movement toward each last and shoe prior to itsoperation on the upper, of a holddown carried by said lasting mechanism for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, a device also carried by said lasting mechanism and movable by the pressure of operating fluid thereon for moving said holddown into engagement with the insole, and automatic means for admitting operating fluid to said device after the positioning movement of said mechanism and for releasing the fluid from" said device at a predetermined in the operation "of said foverlaying means inwardly toward the sides of each last and shoe prior-to their operation on the upper, of holddowns carried by said mechanisms for pressing the opposite side marginal portions of the insole against the bottom of the last before the upper is laid inwardly over the insole, means for imparting to said holddowns inward movements relatively to said lasting mechanisms to positions opposite the bottom face of the last, and additional means for moving the holddowns heightwise of the last into engagement with the insole.

. 15. In a machine for shaping uppers over lasts, the combination with opposite side-lasting mechanisms each having means for laying the margin of an upper inwardly over an insole on a last, and means for moving said lasting mechanisms inwardly toward the sides of eachlast and shoe prior to their operation on the upper, of hold- .downs carried by said mechanisms for pressing the oppositeside marginal portions of the insole against the bottom of the last before the upper is laid inwardly over the insole, automatic means for imparting to said holddowns inward movements relatively to said lasting mechanisms to positions opposite the bottom face of the last in the course of the inward movements of said mechanisms, and additional .means carried by said mechanisms for thereafter moving the holddowns (heightwiseof the last into engagement with the insole. f c i 16. In a machine for shaping uppers over lasts, the combination with opposite side-lasting mechanisms each having means for laying the margin of anupper inwardly over an insole on a last, and meansfor moving said lasting mechanisms inwardlytoward-the sides of eachlast and shoe Pee is iheiw ere n o th upper, of holdjdowns carried by .said mechanisms for pressing the opposite side marginal-portions of the insole against the bottom of the last-before the-upper is laid inwardly over the insole, means for imparting to said holddowns inward'movements relatively to said lasting mechanisms to positions opposite thebottom face of thelast,and fluidoperated devices carried by said mechanisms for thereafter moving the holddowns heightwise'of the last into engagement with--the insole.

17. In a machine for shaping uppers over lasts, the combination with opposite-side-lasting mechanisms each having means for laying the margin of an upper inwardly over an insole'on a last,

and means formoving said lasting mechanisms inwardly toward the sides of each last'and shoe prior to their operation on the upper, of bolddowns for pressing the oppositeside marginal portions of the insole against the bottom of the last before the upper is laid inwardly over the insole, levers supported on said lasting mechanisms for swinging 'movements heightwise of the last and on which said holddowns are mounted, means for moving said levers bodily widthwise of the last relatively to said mechanisms to'carry the holddowns to positions opposite the bottom face of the last, and means for thereafter swinging said levers to move the holddowns into engagement with the insole.

18. In a machine for shaping uppers over lasts, the combination with opposite side-lasting mechanisms each having means for'laying the margin of an upper inwardly over an insole on a last, and means for moving said lasting mechanisms inwardly toward the sides of each last "and shoe prior to their operation on the upper, of holddowns for pressing the opposite side marginal portions of the insole against the bottom of the last before the upper is laid inwardly over the insole, levers supported on said lasting mechanisms for swinging movements heightwise of the last and on which said holddowns are mounted, means for moving said levers bodily widthwise of the last relatively to said mechanisms to carry the holddowns to positions opposite the'bottom face of the last, and cylinder-'and-piston' devices carried by said mechanisms for thereafter operating said levers by fluidpressure to move the holddowns into' engagement with the insole.

19. In a machine for shaping'uppers over lasts,

opposite side-lasting mechanisms each provided with a plurality of fingers for laying the margin of an upper inwardly over an insole on a last and each including also a member movable heightwise of the last to impart to said fingers swinging movements to press the margin of the upper on the insole, means for moving said lasting mechanisms inwardly toward the sides of each last and shoe prior to their operation on the upper, holddowns carried by said mechanisms for pressing the opposite side marginal portions of the insole against the bottom of the last before the upper is laid inwardly over the insole, devices arranged to be operated by movements of the finger-operating members heightwise of the last in the course of the inward movements of said lasting mechanisms toward the sides of the last to impart to said holddowns inward movements relatively to said mechanisms, and additional means for moving said holddowns heightwise or" the last into engagement with the insole.

20. In a machine for shaping uppers over lasts, the combination with opposite side-lasting mechanisms each having means for laying the margin of an upper inwardly over an insoleonalast,

inwardly towardthe sides of eachlast and shoe prior to their operation on the upper, of holddowns carried by said mechanisms for pressing the opposite side'marginalportionsof the insole against the bottom of the last beforetheupper is laid inwardly over the insole, and means carried by said lasting mechanisms for moving said holddowns into'engagement with'the insole after said mechanisms have thus been 'moved inwardly toward the sides of the last.

21. In a machine forshaping uppersover lasts, the combination with opposite side-lasting mechanisms each having means for laying the margin of an upper inwardly over an insole on a'last, and means for moving said lasting mechanisms inwardly towardthe sides of each last and shoe prior to their operation on the upper, of holddowns carried by said mechanisms for pressing the opposite side marginal portions of the insole against the bottom of'the last before the upper is laid inwardly over-the insole, fluid-operated devices carried by said lasting mechanisms for moving said holddownsinto engagement with the insole, and means for admitting operating 'fiuid to said devices after said lasting mechaposite side marginal portions of the insole against the bottom of the last before the upper is laid inwardly over the insole, fluid-operated devices carried by said mechanisms for moving said holddowns into engagement with the insole, and means for admitting operating fluid to said devices after the starting of eration ofthe machine. 7

23. In a machine for shaping uppers over lasts, the combination with means for laying the margm of anoupper inwardly over an insole on a last along the shank portion of the insole, of a holddown for engaging the marginal portion of the insole and pressing it against the bottom of the last in that location before the margin of the upper is laid inwardly over it, said holddown comprising a resilient metal member arranged to extend along the margin of the insole and flexibly yieldable heightwise of the last to conform to the contour of the diiferent portions of the last and insole along which it extends.

24. In a machine for shaping uppers over lasts, the combination with means for laying the margin of an upper inwardly over an insole on a last, of a holddown for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, said holddown comprising a coil spring 7 arranged to extend lengthwise along the margin of the insole in pressure-applying relation thereto and flexibly conformable to the contour of the last 'and insole.

25. In a machine for shaping uppers over lasts, the combination with means forilaying the margin of an upper inwardly over an insole on a last, of a holddown for engaging the marginal the power opportion of the insole and pressing it against the bottom, of the last before the margin of the upper is laid inwardly over it, said holddown comprising a coil spring arranged to extend lengthwise along the margin of the insole in pressure-applying relation thereto, and a resilient member extending into the opening in said spring to support the spring, said member and spring being both flexibly yieldable heightwise of the last to conform to the contour of the last and insole.

26. In a machine for shaping uppers over lasts, the combination with means for laying the margin of an upper inwardly over an insole on a last, of a holddown for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, said holddown comprising a coil spring arranged to extend lengthwise along the margin of the insole .in pressure-applying relation thereto, and a resilient member extending into the opening insaid spring to support the spring, said member being generally smaller than the diameter of the opening in the spring but having thereon larger means in said opening supporting the ends of the spring while leaving the intermediate portion of the spring normally spaced from the member. a V I 27. In a machine for shaping uppers over lasts, the combination with means for laying the margin of an upper inwardly over an insole on a last'along the shank portion of the insole, of a holddown for engaging the marginal portion of the insole and pressing it against the bottom of'the last before the margin of the upper is laid inwardly over it, said holddown comprising resilient means arranged to extend along the margin of the insole in pressure-applying relation thereto and flexibly yieldable heightwise of the last to conform to the 'contour of the last and insole, and means for. pressing said holddown upon the insole' by engaging it in a location substantially midway of its extent along the margin of the insole;

lasts, the combination with means for laying the margin of an upper inwardly over an insole on laid inwardly over it, said holddown comprising a pair of coil springs arranged to extend lengthwise along the margin of the insole substantially in alinement with each other and in pressureapplying relation to the insole, and means for supporting the holddown in a location between the two springs.

29. In a machine for shaping uppers over lasts, the combination with means for laying the margin of an upper inwardly over an insole on a last along the shank portion of the insole, of a holddown for engaging the marginal portion of the insole and pressing it against the bottom of the last before the margin of the upper is laid inwardly over it, said holddown comprising a pair of coil springs arranged to extend lengthwise along the margin of the insole substantially in alinement with each other and in pressureapplying relation to the insole, resilient means extending into the openings in said springs for supporting the springs and flexibly yieldable heightwise of the last with the springs to conform to the contour of the last and insole, and a support for said resilient means between the springs.

30. In a machine for shaping uppers over lasts, the combination with means for laying the margin of an upper inwardly over an insole on a last along the shank portion of the insole, of a holddown for engaging the marginal portion of the insole and pressing it against the bottom ofrthe' last before the margin of the upper is V V 28. In a machine for shaping uppers over" laid inwardly over it, said holddown comprising a pairof coil springs arranged to extend lengthwise along the margin of the insole substantially in alinement with each other and in pressureapplying relation to the insole, a flexible resilient wire extending into the openings in said springs and of smaller diameter than said openings, said wire having on its ends members of largerrdiameter located in the openings in the springs to support the springs, and a support for said wire located between the two springs, said support being provided with members of greater diameter than the wire extending into the adjacent ends of the openings in the springs.

BERNHARDT JORGENSEN.

Images