US1571566A - Stitch-down lasting machine - Google Patents

Description

STITCH DOWN LASTING MACHINE Filed Dec. l5, 1922 WITNESSES INVENTOR .ATTORNEY Patented Feb. 2, 1926.

UNITED STATES SYLVESTER A. WEYENBERG, OF MILWAUKEE, WISCONSIN.

STITCH-DOWN LA ETTING MACHINE.

Application led December 15, V1922.

To all whom t may concern.'

Be it known that I, SrLvns'rnR A. l/VEYEN- nunc, a citizen of the United States of America, and a resident of the city of Milwaukee, Milwaukee County, I'Visconsin, have invented certain new and useful Improvements in Stitch-Down Lasting Machines, of which the following is a specification.

The invention relates to shoe machinery and more particularly to a machine used in the process of manufacturing stitch down shoes.

Heretofore it has been customary to use staples to secure the upper to the adjacent sole, which may be an inner sole or outsole of a stitch down shoe, but I have found this may be simplified and cheapened by gluing the upper to the adjacent sole. In using a gluing process it is necessary to exert pressure upon the parts being glued to press them into intimate contact with each other and to bring the upper closely against the last. To facilitate the gluing operation I have provided a machine having one or more cooperative sets of dies for pressing` the glued surfaces together.

The invention further consists in the several features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

In the drawings: Fig. 1 is a side elevation of a machine embodying the invention; Fig. 2 is a detail front elevation, parts being broken away and parts being shown in section; Fig. 3 is a detail view partly in section of the die-carrying heads; Fig. 4: is a bottom view of the upper turret and dies.

In the drawings the numeral 5 designates a standard to which a plate 6, having arms 7, 8 and 9 and a shelf 10 projecting therefrom, is secured.

A hollow tube or rod 11 is slidably mounted for vertical reciprocation in bosses at the ends of the arms 8 and 9 and is operatively connected at its lower end by a pin 12 to one end of a lever 13 pivotally mounted intermediate its ends on a pin 14 carried by the arm 9 and pivotally connected at its other end by a pin 15 to a treadle link 16 which is connected intermediate the ends of a foot treadle 17, said treadle being pivotally connected at one end to the standard 5. A collar 18 is secured by a set screw 19 to the rod 11 above the arm 8 to limit the downward movement vof said felial No. 607,068.

rod. A collar 20 is secured by a set screw 21 to the rod 11 below the arm 8 and a spring 22 is interposed between said collar 18 and arm 8 to normally move said rod downwardly 'and to be compressed by the upward movement of the rod 11 on the downward swing of the treadle 17 under foot pressure.

A die 23 has its shank mounted in the upper end of thetube 11 and is secured thereto in any suitable manner, as by a pin 24. `The die 23 may be termed an anvil upon which the bottom of the sole 25, to be glued to the upper 26, abuts.

The arm 7 has a plato 27 secured thereto and a turret 28 isrotatably mounted upon a pivot bolt 29 carried by said plate 27 and abuts against said plate. This turret 28 has openings therein to receive the shanks of a plurality of pressing dies or irons 30, 31, 32 and 33, the shanks being clamped in each instance by means of a set screw 34k. B turning the turret any one of the pressing' irons may be brought into cooperative relation with the anvil 23. VTWhen any one of these pressing dies are so positioned a spring-pressed ball 35, carried in the turret with its spring 36 and holding screw 37, is adapted to engage in one of the recesses 38 in the plate 27 to hold the turret against rotation. The turret may be turned by hand to bring the desired pressing iron into operative position.

The irons and 32 are especially designed to act upon the shank portions of the shoe, the iron 3l upon the toe portion I and the iron 33 for pressing upon the fiat part 2G of the upper that projects out from the body of the shoe upon the extended part of the sole. A gas jet 39 may be brought into operation to heat the irons, more particularly the iron 33.

'With the construction above described, the parts of the upper and sole which have previously received a coat 0f glue are pressed together between the anvil 23 and any one of the dies 30 to 33, inclusive, to secure the upper to the adjacent sole, and the various dies 30 to 33 are brought into cooperative relation with the anvil 23 to perform this work, the upward movement of the anvil 23 bringing the selected die into pressing engagement with the shoe. The dies 30 to 33, inclusive, are so formed as to permit their working surfaces being moved into the seam or crease 110 that is formed as the upper is shaped to or Worked over the last 4l and secured to the sole 25, the o'- sets or notches 80', 31', 32 and 33 permitting this action.

l/Vhile a lsingle die, such as the die 30, cooperating With the anvil 23 could be used for the entire pressing operation, by proper manipulation of the shoe, I lind that the pressing operation is facilitated and bettered by the use of the other dies in conjunction with the die 30.

The shoe shown may also be provided with a lining 2 which is turned inwardly at its edges 43 and is initially secured to the inner sole 4A on the bottom of the last and glued to the sole 25 prior to gluing the upper to the sole.

7hat l Claim as my invention is:

l.' In a machine forA making stitch down "shoes Whereinthe upper is glued to the adjacent sole, the combination of a soleengaging die, a plurality of upperengaging dies, said upper-engaging dies being movable into cooperative relation, one at a time, with said sole-engaging die, and means for moving the cooperative dies relatively to each other to press the glued portion of the upper and sole into contact.

2. In a machine for making stitch down shoes wherein the upper is glued to the adjacent sole, the combination with a support, of a turretJ mounted to turn thereon, a plurality of pressing dies carried by the turret, and a die reciprocating toward and away from the turret and cooperating with the dies on the turret, one at a time, for pressing the glued upper and sole into contact.

3. In a machine for making stitch down shoes wherein the upper is glued to the adjacent sole, the combination with a support, of a turret mounted to turn thereon, a plurality of pressing dies on the turret, means for releasably holding theturret in dierent adjusted positions, and a die reciprocating toward and away from the turret, and cooperating with the dies on the turret, one at a time, for pressing the glued parts of the upper and sole against each other.

sYLvnsTER A. WEYENBERG.

Images