US402375A - Leather-cutting tool - Google Patents

Description

H. W. WINTER. LEATHER GUTTING TOOL. I

Patented Apr. 30, 1889.

(No Model.)

I UNITED STATES PATENT OFFICE.

HENRY \V. \VINTER, OF BOSTON, ASSIGNOR TO JAMES IV. BROOKS, TRUSTEE,

OF CAMBRIDGE, MASSACHUSETTS.

LEATHER-CUTTING TOOL.

SPECIFICATION forming part of Letters Patent No. 402,375, dated April 30, 1889.

Application filed July 16 1888. Serial No. 280,057. (No model.)

To all whom it mag concern.-

Be it known that I, HENRY W. WINTER, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Leather-Cutting Tools, of which the following description, in connection with the accompany1n g drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object the production of a novel rotary cutter for cutting leather.

My invention in cutters consists, essentially, in a disk to which is attached a series of hollow cutters having throats, as will be described.

Figure 1 in edge view shows a cutter embodying my invention; Fig. 2, a section in the line as, Fig. 1, looking to the left, the dotted lines showing the register with the plate '0 applied to it as when the cutters are to be fixed in position; Fig. 3, a section in the line m, Fig. 2, the screws being in elevation; Fig. 4, a face View of the register used to set the cutters, and Fig. 5 a perspective view of one of the cutters.

The shaft a has a flange or shoulder, b, against which is placed the plate 0, which carries the cutters (1. Each cutter d, made hol low and slotted at its side, as at 2, (see Fig. 5,) to leave a cutting-edge, 3, has a shoulder, 4., against which, as shown in Figs. 3 and 5, acts the under side of the head of the screw 6, which fixes the cutter on the disk, the said cutter surrounding a boss, 0', of the plate 0, so as to avoid lateral strain on the screw e. Each cutter is shaped externally to correspond with the particular configuration it is desired to give to the article to be trimmed or cut to shape, whether it be a sole or heel. The end of the shaft 0. is screw-threaded to receive a ing it pressedat its rear end against the plate 0.

To enable the article being acted upon to be trimmed or shaped smoothly or uniformly, all the cutters cZ must be so placed and fixed to the plate 0 that their cutting-edges are presented in succession to the material to be out just alike; so I have provided to go with the cutter a register composed of a block, h, having a pin, it, for each cutter and a pin, 71 The pin it enters a hole, 71/ in the plate 0,

(see dotted lines, Figs. 1 and 2,) which insures proper position for the said plate It and its pins h, so that each pin it comes opposite each cutter and occupies just the proper position to act as a registering-pin, against which Will be placed the throat of the cutter before the screws e are set up to fix the cutters to the plate 0. The register is used after the cutters have been ground, thus enabling them to bereadily adjusted into working position notwithstanding their varying shape due to grinding.

The tool herein shown and described is very efficient and durable and clears itself from chips through the cutters with great ease.

The plate 0 is recessed where the base or 0 for the reception of the large ends of the.

cutters d substantially fit the outer portion of the base of each cutter, and at the same time the hole made through the cutter at its large end is of a size to substantially fit the boss 0, so that either the walls of the said recesses or the said boss, or it may be both, act to position the centers of the said cutters with relation to the center of a disk or plate, 0.

I have herein shown the register as composed of a plate provided with pins, said plates and pins forming a means for registering the position of the acting edge of the cutter; but I do not desire to limit my invention to the exact construction of registering device shown,

as I may employ any other usual or equivalent device.

I claim 1. The herein-described cutting-tool, composed, essentially, of a plate or hub, a, one or more hollow cutters slotted to forn1 throats, and the guard g at the outer end of the cutter, and having a thin edge, g, to enter the rand-crease, to operate substantially as described.

'2. The plate or hub a, recessed to receive the cylindrical ends of several cutters, and the plate 9, combined with a series of cutters oylindrical in cross-section, each slotted to form an open threat for the discharge of the material, and screws to fix the cutters to the plate 0, and with the register having pins to insure the correct position for the edges of the cutters, substantially as described.

3. The plate or hub 0, provided with a boss,

HENRY W. WINTER.

W itnesses:

G. W. GREGORY, B. DEWAR.

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