US1087196A

US1087196A - Die.

Info

Publication number: US1087196A
Authority: US
Inventors: John C Smith
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1910-06-06
Filing date: 1910-06-06
Publication date: 1914-02-17
Anticipated expiration: 1931-02-17

Description

J. 0. SMITH.

DIE. APPLICATION FILED JUNBG, 1910.

1,087,196. I Patented Feb. 17,1914.

W/T/VESSESL 1 //vv/\/ mm m QM UNITED STATES PATENT @FFIQE.

JOHN C. SMITH, OF LYNN, MASSACHUSETTS, ASSIGNOB, TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

DIE.

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Specification of Letters Patent.

?atented Feb. 1?, 1914.

To all whom it may concern Be it known that I, JOHN C. SMITH, a citizen of the United States, residing at Lynn, in the county of Essex and State of lvI-assachusetts, have invented certain Improvements in Dies, of which the following description, in oonnectionwvith the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to dies which are used for dieing out blanks of sheet material such as upper leather for boots and shoes. 7

More particularly the invention relates to the class of dies used with clicking presses and contemplates a novel construction of die and supplementary cutting, ornamenting or marking. member for dieing out a blank and simultaneously performing a secondary operation thereon.

The preferred type of clicking press die comprises an open frame having oppositely disposed pressure receiving and cutting edges. Such a die covers little of the blank about to be died out and so affords the cutter an unobstructed view of the stock, enabling him to inspect it critically and place the die so as to avoid imperfections or weak places therein. 7

It is, accordingly, an important object of the present invention to provide novel means for mounting in a die of this type a supplementary member for performing a secondary operation on the blanks died out thereby.

Another object of the invention is to provide a mounting for a supplementary member such that the latter may be detached easily and quickly from the die with which it is to be used, in order that unmarked or unperforated blanks may he died out or another supplementary member of different design may be substituted in changing from cutting blanks for one style of shoe to another.

In this connection, an important feature of the invention consists in so arranging the members which connect the die and supplementary member that, on the removal of the latter, the center of the die is left substantially open and unobstructed. In addition to afl'ording the cutter opportunity to inspect the stock this construction permits wide variation in the shape and size of the supplementary members which may be used interchangeablyv with one die or with different dies. Preferably the connecting members may extend, wholly or in part, flush with the pressure receiving surface of the die, thus supplying additional area for receiving the pressure necessary to force the die through the stock.

Another feature of the invention relates more particularly to the construction of the die itself and consists in forming slit-ting blades within the outline thereof which may be arranged in such relation to the supplementary member as to cooperate therewith in forming an ornamental or other design on or in the blank. This feature of the invention may be embodied to a good advantage in a novel die for cutting sandal Vamps.

I-Ieretofore it has been the practice to die out the marginal edges of Vamps for sandals, then out the desired ornamental perforations and the tongue by hand and afterward sew the tongue to the vamp. In accordance with the present invention, however, it is proposed to construct a die having its cutting edges shaped to die out not only the marginal edges of a vamp but also the throat and tongue thereof. The slitting blades above referred to may be arranged to operate on the tongue portion of the blank and a supplementary perforating member giay be mounted in the toe portion of the The invention is herein shown as embodied in the combination of a die and a supplementary member for cutting an ornamental design in the blank died out, although it will be apparent that the invention contemplates other forms of supplementary member, for example, a member for embossing or creasing a design on the blanks or for forming lines of perforations therein. The invention, however, will be best understood and appreciated from the following description in connection with the accompanying drawings in which Figure 1 is a viewin perspective of a die in an inverted position, for cutting sandal Vamps with a supplementary member for forming an ornamental design therein. Fig. 2 is a sectional View on the plane 22 of Fig. 1. Fig. 3 is a view in perspective of a supplementary die of a difierent design from that shown in Fig. 1. Fig. 4: is a View in perspective of a portion of a clicking press showing the die in position on a skin.

The die shown in Fig. 1 is intended for dieing out vamps having an integrally formed tongue and an ornamental perforated design cut in the toe portion. I-Ieretofore it has been the practice to stitch a tongue to the inner transverse edge of the throat of the vamp. By the use of the die herein shown, however, the operations of cutting and stitching the tongue are obviated and the complete blank is formed at a single operation. To this end the die comprises an open frame 12 corresponding in shape with the marginal contour of a vamp and having one edge 18 sharpened to form a continuous cutting edge and the other flattened to form a pressure receiving surface 1 1. This die has a reentrant portion 15 for cutting the throat of the vamp, having a cutting edge extending continuously with the cutting edge of the marginal portions and a loop-shaped connecting portion 16, which, for convenience, may be termed counter-reentrant, for cutting the tongue of the sandal.

The tongue cutting portion 16 extends back toward the rear of the die and rigidly secured between its sides at suitable points are blocks 18 on which are formed, or otherwise rigidly mounted, parallel slitting blades 19. The blades 19 serve to cut parallel slits in the tongue through which cross straps may extend in the finished shoe. The reentrant portions 15 which cut out the edges of the throat are provided at oppositely disposed points with offset portions 17 which form projecting ears on the sides of the throat to which the cross straps may be attached.

The die herein illustrated is shown as provided with a supplementary member for forming ornamental perforations in the toe portion of the vamp simultaneously with the dieing-out operation. In this embodiment of the invention the supplementary member may comprise a plate 20 in which are inserted the small dies 22 with their cutting edges substantially in the plane of the cutting edge of the main die as will be clearly seen in 1. Transversely extending lugs 24 are rigidly attached to the plate 20 and are provided with sockets to engage dowel pins 26 which project vertically from lugs 28 extending from the inner sides of the die. It will be seen that the supplementary member may be detached from the die simply by lifting the lugs 24 out of engagement with the dowel pins 26, the center of the die then being unobstructed except for the lugs 28 which will cover a very inconsiderable part of the stock. The plate 20 is perforated to permit the passage of the punchings out out by the dies 22 and the construction is such that when the supplementary die is in operative position, as shown in Figs. 1 and 2, the upper surface of the plate 20 lies in the plane of the pressure receiving edge 14 of the die and thus forms an independent pressure receiving surface for the supplementary die. Other supplementary mem bers of various designs may be inserted in place of that illustrated in Fig. 1, it being necessary only that such members should be provided with sockets which will register with the pins 26. A supplementary member adapted to cut a different ornamental de sign is shown in Fig. 3, in which the plate 30 is perforated to receive five small dies 32 and is provided with transverse lugs'S-iin which are formed sockets for the reception of the pins 26. The small dies 22 may be constructed in any preferred manner, as for example, by being out out of a solid block or they may be constructed of strip material, being bent into shape and welded.

The die hereinabove described may be e1nployed advantageously in a clicking press of the type described in Letters Patent of the United States No. 921,503 granted to Arthur Bates May 11, 1909, parts of which are shown in Fig. 4. In that machine there is provided a cutting block 42 above which is mounted an arm 4: 1 which may be swung over a die after the latter has been properly located on a skin placed on the cutting block. After the arm 44 has been brought to a po sition vertically over the die a depression of the handle 46 by the operator causes the arm to descend upon the pressure receiving surfaces of the die and supplementary die and force them through the skin thus forming a complete blank at a single operation.

It will be seen that by employing dies constructed in accordance with the present invention one or two supplementary dies will serve for a complete set of vamp dies and thus the expense of constructing a large number of dies of intricate design is avoided.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. A die comprising an open frame having one edge sharpened for cutting and an oppositely disposed pressure receiving edge, in combination with a supplementary member for operating on the blank cut by the die, intermediate connecting members extending from points on the sides of the die to points on opposite sides of said supplementary member, and a separable connection in each of said connecting members.

2. A die for cutting sheet material, having an outer cutting port-ion shaped to correspond with the marginal edges of a vamp, and a reentrant throat cutting portion having offsets formed in its cutting edge at oppositely disposed points to form projecting ears on the blank for cross straps.

3. A die for cutting sheet material, having a cutting edge shaped to cut the outer marginal edges of a vamp, a reentrant cute ting portion for cutting the throat of the vamp, and a counter-rentrant cutting portion being disposed between the sides of the rentrant portion and for forming a tongue integral with the vamp, said latter portion having mounted therein blades for slitting the tongue.

4:. A die for cutting and ornamenting sandal Vamps having an outer marginal cutting edge, a reentrant portion having a cutting edge continuous therewith, a counter-reentrant portion having a cutting edge continuous with the edge of said reentrant portion, slitting blades mounted in said counter-reentrant portion and a supplementary perforating member maintained in rigid relation therewith.

5. A die for Vamps having portions shaped to cut the marginal edges of a vamp, cutting portions extending continuously therewith for cutting a tongue as an integral part of the vamp, and means for slitting the tongue simultaneously with therdieing out operation.

6. A die for cutting sheet material having intermediate members projecting toward each other leaving a space between adjacent faces thereof, in combination with a blank ornamenting die having a pressure receiving surface independent of the first mentioned die, and means for removably mounting said ornamenting die in the space between said intermediate members.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.-

JOHN C. SMITH.

Witnesses:

HERBERT W. KENWAY, FREDERICK L. EDMANDS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

It is hereby certified that in Letters Patent No. 1,087,196, granted February 17, 1914, upon the application of John C. Smith, of Lynn, Massachusetts, for an improvement in Dies, errors appear in the printed specification requiring correction as follows: Page 3, lines 3- 1, strike out the words being disposed between the sides of the rentrant portion and; same page, line 5, as now numbered, after the word portion insert the words being disposed between the sides of the reentrant portion and; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 9th day of June, A. D., 1914.

J. T. NEWTON, Acting Commissioner of Patents.

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