US1844299A - Stitch cutter - Google Patents

Description

Feb. 9, 1932. 3, Ross 1,844,299

STITCH CUTTER Filed April 16, 1930 2 sheets-sheet 1 Allomey Inventor Feb. 9, 1932.

D. ROSS] s'rmcn ZCUTTER Filed April 16, 1930 2 Sheets-Sheet 2 Inventor pom in z'cZJPO'yy z Patented Feb. 9, 1932 mazes DOMINICK ROSSI, OF ALBANY, NEW YORK STITCH CUTTER Application filed A an is, 1930, Serial K54 1 1333.

This invention relates to new and useful improvements in stitch cutting machines and more particularly to devices of this character which are especially adapted for use in cutting the stitches which secure the soles A to the welts of shoes, but it is to be understood that a machine in accordance with this invention may be utilized for any purpose for which the same is found adapted and dcsirable.

A primary object of the invention is to provide, in a manner as hereinafter set forth, a stitch cutter of the aforementioned character embodying a construction and arrange 1511'16I1t whereby the stitches will be severed without injury to the welt or adjacent portion of the shoe upper, and which embodies means whereby the same is adapted to op- .erate on shoes having welts of any width, 29' such as ladies and mens shoes.

Another important object of the invention is to provide a stitch cutter of the character set forth embodying spring controlled means for pressing the shoe into engagement with the cutter, said means adapted to function upon shoes having soles thereon of any thickness.

Other objects of the invention are to pro- .vide, in a manner as hereinafter set forth, a

stitch cutter of the above mentioned character which will be simple in construction, strong, durable, eflicient in its use and which may be manufactured at low cost.

All of the foregoing and still further ohjects and advantages of the invention may become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein ralike characters of reference designate corresponding parts throughout the several views, and wherein Figure 1 is a view in side elevation of a stitch cutter constructed in accordance with this invention, the upper portions only of the device being shown.

Figure 2 is a detail view in elevation of one of the cutters.

V Figure 3 is a detail view in section through one of the cutters.

Figure 4 is a view in top plan of the device.

Referring to the drawings in detail, the reference numeral 1 designates a pair of spaced standards having the horizontally aligned integral bearings 2 on the upper ends thereof through which is journaled a shaft 3, said shaft terminating in spaced relation to the outer sides of the bearings 52 as clearly illustrated in Figure 1 of the drawings. A pulley f is fixed on the shaft 3 intermediate the bearings 2 and trained over said pulley 4; is an endless drive belt 5 which is driven from any suitable source ofpower (not shown). Asubstantially inverted U- shaped guard 6 extends over the pulley 4 and the belt 5 and is supported, at its opposite end, on the upper sides of the bearings 2, as also seen in Figure 1. V i i At its opposite ends, the shaft 8 terminates in reduced threaded shanks 7 upon which are secured, through the medium of the nuts 8, the annular stitch cutters designated generally by the reference character 9. As illustrated to advantage in Figures 2 and 3 of the drawings, the cutters 9 are provided with a centrally disposed opening 10 for the reception of the shaft and projecting tangen tially from the periphery of each of said cutters are the integral teeth 11, the free ends of which are inclined inwardly as indicated at 12. Thus it will be seen that the cutting teeth are of substantially hook-shape and are each provided with a cutting, edge which is beveled. The usual guard disk 10 is associated with each cutter and engages the outer face of the cutter and is held thereagainst by the nuts 8. j i 7 Brackets 13 are mounted on the outer sides of the standards 1 adjacent the bearings 2' through the medium of the anchoring bolts l4 and mounted for swinging movementin a horizontal plane on said brackets is a pair of arms 15, the pivotal mounting for said arms being indicated at 16. The arms 15' extend adjacent the inner sides of the cutters 9 and have j ournaled thereon at a point in opposed relation .to said cutters the pressure rolls 17 which. are horizontally disposed. Each of, the arms 15 has formed integrally thereon a hook 18 with which is engaged one end of a spring 19 which has its opposite end connected to a protuberance 20 projecting from the adjacent standard 1 and, as will be obll vious, the function of the springs 19 is to yieldingly urge the respective arms 15 and pressure rolls 1? toward the cutters 9. It will further be seen that the pivoted end of each of the arms 15 has formed integrally thereon a stop finger 20 which is engageable witha stop pin 21 projecting upwardly from each of the brackets 13 in a manner to arrest the swinging movement of the arms 15 and the pressure rolls 17 at a predetermined point with respect to the cutters 9. The free end portion of each of the arms 15 is further provided with an integral'actuating handle portion 22 by meansof which an operator is enabled to manually swing the arms and pressure rolls away from the cutters 9 against the tension of the springs 19.

In use, the shaft 3 is set in motion when power is applied thereto by the belt 5 and the marginal portion of the sole 23 of a shoe 24 is interposed between one of the pressure rolls 17 and the adjacent cutter 9. It will thus be seen that the sole is maintained in yielding engagement against the cutter through the medium of the coil spring 19. In this position. the cutters 9 will sever the stitches without injury or damage to the welt of the shoe and it will also be seen that a shoe haviug a welt of any width and also a sole. of any thickness may be operated on.

The shoe is held in a position, not quite perpendicular so that the beveled ends of the teeth will engage the stitching in the welt and thus cut and remove the stitching from the welt. As is well known the welt is very flexible so that the shoe can be held in a position to place the upper face of the welt against the beveled part of the cutter with the roller 17 engaging the bottom face of the welt slightly spaced from the outer edge thereof, so that the beveled edge of the cutter can be pressed against the top face of the welt to cut the threads therefrom. v j V This position of the cutter relative to the shoe with the guard 10 prevents the cutter from injuring the upper of the shoe.

It is believed that the many advantages of a stitch cutter constructed in accordance with this invention will be readily understood, and although the preferred embodiment of the invention is as illustrated and described, it

is to be understood that changes in the details of construction may be had which will fall within the scope of the invention as claimed.

hat is claimed is A cutter of the character described for cut ting and removing stitches from the welt of the shoe comprising a standard, a bearing on the standard, a shaft mounted for rotation through the bearing, a toothed cutter fixed on the shaft for rotation therewith in spaced relation to the bearing, each tooth of the cutter being of substantially hook shape with its end beveled for engaging the stitches in the Welt, a bracket mounted on the standard, an arm mounted for swinging movement in a horizontal plane on the bracket, a horizontally disposed pressure roll rotatably mounted on the arm, an integral handle projecting from the free end of the arm, a coiled spring operatively engaged with the arm in amanner to swing the same and the pressure roll toward the cutter, and co-acting means carried by the arm and the bracket for arresting the swinging movement of said arm toward the cutter at a predetermined point.

In testimony whereof I afiix my signature.

' DOMINICK ROSSI.

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