US1177005A - Trimming device. - Google Patents

Description

H. ZIMMERMAN.

THIMMING DEVICE.

APPLICATION FILED AUG-23, I910.

1,177,005. Patented Mar. 28, 1516.

TED @TATES PATENT @FFlfiEw HARRY ZIMMER-MAN, OF FREMONT, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE COSHOGTON GLOVE (10., OF GOSI-IOGTON, OHIO, A CORPORATION OF OHIO.

TRIMMING DEVICE.

Specification of Letters Patent.

Patented Mar. 28, 1916.

To all whom it may concern:

Be it known that I, HARRY ZIMMERMAN, a citizen of the United States, residing at F remont, Sandusky county, Ohio, have 1nvented new and useful Trimming .Dpevmes, of which the following is a specification.

This invention relates to trimming of material, applying more particularly to the severing of the waste portions in blank cutting from strips.

This invention has utility when adapted for use in connection with dies, especially those dies designed for cutting through a plurality of thicknesses of material.

eferring to the drawings: Flgure 1 1s a plan view, with parts broken away, showlng a grouping of dies, with the trimmer devlce in combination therewith; Fig. 2 1s a section through one of the terminal dies adj acent the trimmer; and Fig. 3 is a fragmentary bottom plan of a trimmer and ad acent portion of normal die blank cutter.

Loosely mounted in the grouping frame 1 are the dies 2, 3, disposed transversely over the plurality of thicknesses of strip material 4. The varied contour of the dies 1s frequently such that their abutting walls may effect a complete severing of the material from the line of the strips within the width of the die grouping. However, especially in the flexible grouping of the dies, it

is not practical to set the terminal dies clear to both edges, or even to one edge, and produce cuts which will pass inspection. For the sake of economy, it is desirable to minimize the extent of this lateral strip or waste as much as possible. After the dies have been driven or pressed through the stock, removal of the dies permits of ready removal of the cuts, leaving the side waste portions still hanging to the main uncut portion of the material, with more or less intermediate waste stock hanging thereto.

In order that the blank cutting action of the dies may perform a complete operation so far as the full transverse extent of the strip of material is concerned, and in addition to the normal die both in extent and operation, protruding trimmers 5 are provided. These integral cutting portions 5, connected to the dies proper, result in the combined lateral extension of the cutters exceeding the maximum width of the strip, so that in regular die blank cutting, a severing of stock for the full width of the material is eiiected, and all in the single operation. So out, the material may be as rapidly removed and blanks and waste cuts assorted, as the blanks alone under other conditions. This results in a material saving in time due to the rapidity with which successive operations may occur, while it avoids any twisting or distorting of the uncut material due to pulling or manual cutting in seeking to be rid of the waste. As the die is forced into the stock or material, this material curls up or rises in the intermediate regions shown in Fig. 2. In the overlaying of bolts or unwound portions of bolts of material exercise of considerable care in laying them up still leaves slight irregularities in the longitudinal edges, as shown at the left in Fig. 2, and these irregularities mount up in the cutting of forty-eight thicknesses of material for twenty-four pairs of say convas gloves at each drive of the die.

What is claimed and it is desired to secure by Letters Patent is:

The'combination with a multiple fabric endless wall die about the inner and outer sides of which wall the material being cut may rise in normal operation, said die adapted to cut blanks and having a top pressure abutting face and opposite thereto a cutting edge in a plane of blank contour form, of a trimmer, device independent of the blank contour form of the die and extending from the blank contour form of the die laterally to complete the cutting of the material to various extents independent of the die contour, said trimmer having its cutting edge in the plane of the cutting edge of the die to operate simultaneously with the die to sever the material adjacent the die from the stock material with the cutting by the die.

In testimony whereof I hereunto set my hand in the presence of two witnesses.

HARRY ZIMMERMAN.

Witnesses:

KATHERINE DICK, E. L. Boson.

Copies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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