US431521A - Cloth cutting machine - Google Patents

Description

(No Model'.)

No. 4s1,521.

- M. KUHN. CLOTH CUTTING MACHINE.

Patented July 1, 1890.

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UNITED STATES PATENT OFFICE..

i MORRIS KOHN, OF CHICAGO, ILLINOISQ'ASSIGNOR TO THE PEERLESS CLOTH CUTTING MACHINE COMPANY, OF SAME PLACE.

CLOTHCUTTING MACHINE.

SPECIFICATION 'forming part of Letters Patent No. 431,521, dated July 1, 1890.

Application led April 25, 1889. Serial No. 308.590. (No model.)

.To a/ZZ whom it may concern.-

Be it known that I, Hormis KOEN, a citizen of Austria-I-Iungary, who have declared my intention to become a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Cloth-Cutting Machines, of which the following is a specification.

This invention has a two-fold object in view-first, to enable the cutting of a very much greater number of thicknesses of cloth at one operation than has heretofore been possible, and, second, to obviate the necessity which now exists of the operatortaking hold of and raising the cloth when cutting at the angles. The construction which I prefer,whereby to attain the iirstof these results, embodies several sharp-edged rotating knives arranged one above the other and in line with each other, each knife being adapted to cut independently, and the lower one being adapted to be buried in the cloth. By means 0fY this feature the depth to which the cut maybe carried'is multiplied two or three times, so that with the marking out of one pattern two or three times the present number of thicknesses may be cut at one operation, with resultant saving not only in the outlining of the pattern, but also in the number of cutting-operations.

The second feature I obtain by providing the foot, which usually passes under the cloth, with a hinged slotted piece extending along the side of and to the front of the under cutter, and connected at its rear end to a lever extending to within easy reach of the operator', such lever being adapted, when pressed upon, to elevate the forward end of the slotted piece and lift the cloth, so that the under layers shall be raised nearly to the level of the axis of the lower cutter and thus be cut to the same extent and in the same line with the upper layers.

These and other details of my invention will be fully understood from the accompanying drawings, wherein- Figure l is an elevation of the cutter and its supporting and operating mechanism. Fig. 2 is an enlarged side elevation. Fig. 3 is a similar rear elevation of the cutter. Fig. 4 is a vertical section upon the line 4 4 of Fig. 2.

In said drawings, A A represent a pair of hinged supporting-arms, one being attached to a suitable standard B.

y C C are driving-belts carrying motion from the vertical shaft c, located at the standard B to the pulley D, driving the shaft d, passing through the sleeve E, and carrying a bevelpinion e.. This pinion meshes with a similar pinion f, upon a horizontal shaft F, in the enlargement G at the lower end of sleeve E. This shaft E carries and actuates a cutter H. Upon the shaft F, and just outside the cutter H, is a pinion h, meshing with a larger pinvion i, which in turn drives the pinion j, and with the latter a second cutter J, whiclris placed parallel to and below the cutter H, with the edges of the two cutters lapping, as

clearly indicated, the two cutters being placed Y furnishing both with power from the same horizontal shaft F, the depth of the body of cloth may be very much increased, as it will be noticed that there is no obstacle to the passage of the two cutters through the cloth below the bottom of the enlargement G, and which is at a much greater remove above the surface upon which the cloth rests than in any previous machines. I prefer to bevel the cutting-edges of the two cutters upon Opposite sides, as clearly indicated in Fig. 4, as thereby the cutting-edges of the two cutters are brought practically into the'same vertical plane. The plate K incloses the gears 'L' and j, so that the cloth cannot' get in between them.

M is the Vusual foot, which passes under the cloth an'd lifts it slightly from the table. In this foot I place a slotted piece N, and hinge it at n. This piece extends along either side of the cutter J and a short distance in advance of it. Extending from the heel of the piece N and upward to a point within easy reach of the operator is a rod O, and by depressing this rod the operator lifts the forward end of the piece N, as shown by broken IOO lines in Fig. 2. The spring o lifts the rod to its normalposition after each operation. By means of this piece N and its operating-rod the operator is enabled to lift the cloth as he approaches an angle in the line to be cut, so that all the layers of it will be severed in a uniform manner and without touching the cloth with his hands. The foot N is adjustably supported by a standard m, as indicated.

The operating-handle, by which-the operator guides the cutter, is shown at P. As a good deal of the work done by this machine is in a class of cloth containing a considerable amount of dust I find it desirable to place upon the inside of the cutters 'i and j a plate R, which will aid in excluding the dust given off during the cutting-operations from such cutters.

It will be noticed that both the rotating cutters rotate in the same direction; also that' the axis of the lower cutter is short, and that the same is true of the axis of the commu-nicating-gears, so that the lower disk, together with its support and actuating devices, may be made compact and nearly flat, the whole device being thus rendered thin, so as to enable such lower cutter to be easily passed through the cloth and be buried below the upper layers thereof.

I claimp l. The combination, in a cloth-cutting machine, with the enlargement G, carrying the shaft F, of the cutter H and pinionV h, both mounted upon said shaft, with the pinions 1l andy', cutter J, and the plate K, substantially as set forth.

2. The combination, with the cutter and foot of a cloth-cutting machine, of a slotted piece hinged to the foot and extending to a point in front of the cutter, and means for lifting the forward end of said slotted piece at will, whereby the clothis lifted in advance of the cutter to a point on a level with the forward edge thereof, substantially as set forth.

3. A movable cloth-cutter, the cutting-edge whereof is composed of several sharp-edged disks lapping by each other and provided with means for rotating them in the same direction, and being arranged in line with each other, so as to cut in the same plane, substantially as specified.

4. A movable cloth-cutter, the cutting-edge whereof is composed of several sharp-edged rotary disks lapping by each other and arranged in the line of the cut being made,A

whereby a greaterthickness of cloth may be cut, the axle and supports for the lower cutting instrumentality being made short and fiat, so that the said cutting instrumentality may be buried in the cloth, substantially as set forth.

5. In a cloth-cutting machine, a head and power mechanism mounted therein, combined with a support or arm depending from said head and carrying a rotating knife J, and power-transmitting devices connecting said knife with the said power mechanism, whereby the knife may be buried in the cloth, substantially as set forth.

MORRIS KOHN. lV\itnesses:

EDw. S. EvARTs, H. M. MUNDAY.

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