US129939A - Improvement in cloth-cutting machines - Google Patents

Description

S. M. EUISEMAN.

Cloth-Cutting Machines.

No. 129,939. Patented July 3o, 1872.

SOLOMON M. EisnMAN, or New Yom?, N. Y.

IMPROVEMENT IN CLOTH-CUTTING MACHINES.

Specification forming part of Letters Patent No. 129,939, dated July 30, 1872.

Specification describing a new and useful Improvement inGloth-Outting Machines, iu-

vented` by SOLOMON MAYER EIsEMAN, of the city, county, and State of New York.

Figure l is a rear view of my improved machine, part being broken away to show the construction. Fig. 2 is a side view of the same, partly in section, through the line x a', Fig. l. Fig. 3 is a top view oi' the knife-plate. Fig. 4 is a face view of the knife-plate.

Similar letters of reference indicate corresponding parts. i

My invention has for its object to furnish an improved machine for cutting cloth, paper, woven or felted fabrics, metals, and substances of all kinds formed in sheets, into any desired form. The cutting-knives are operated by means of a gravitating cutter-head so arranged and constructed that, by the fall of the cutter-head and knives, several thicknesses or sheets of the material may be simultaneously cut.

The construction and arrangement of the parts ordevices composing the machine and constituting vthe novelty claimed are as follows: A are uprights, two or more of which may be used, and which are connected at their lower end by a platform, B, to which the bedf plate C is attached. At their upper ends the uprights are connected by the cross-bar D. E is the cutter-head or drop-plate, whichy is attached to the slides F that move up and down in ways upon the inner sides of the posts or nprights A. 'To the center of the drop-plate E is attached one end of the rope G, which passes up through a holte in the center of the cross-bar D, over the .pulley H, and down into such a position that it maybe conveniently operated by the operator with his -hand or foot or by other power. The pulleyvH is pivoted to and between two bracketsfor studs, I, attached to the cross-"bar D in such position that the face of the pulley upon one side may be di# rectly over the hole in thecross-bar D through which the rope G passes. To. the lower face of the plate E may be secured, by screws or bolts, a plate, J, which is slotted in the manner shown in Figs. 3 and 4.,. to receive the screws or bolts K, and the upper side of which f is recessed, as shown in Fig. 3, to furnish space for the heads of the said bolts K. `Lare studs,

the bases of' which are slotted to receive the 1 bolts K, by which they are secured to the plate J, and their projecting ends are slotted to receive the knives or cutters M, which may be secured invplace by set-screws or other conveniently-detachable means. The knives or cutters M are made of spring-steel or other elastic material, so that they may take any de sired curve.

In using the machine the pattern of the piece to be cut is drawn upon the face of the plate, or is attached temporarily to said plate. Knives of the proper length are then adjusted to the pattern by adjusting the studs L and bolts K, as many studs L being used as may be required to bring the knives M to and hold them in the proper shape. The plate J and its at! tached knives are then securedto the plate E, a plate of rubber being interposed between the. said plates J and E, and the drop is raised by means of the rope Gr or other suitable means, and secured by a hook, N, or other suitable device. The desired number of sheets of cloth, paper, or other material, according to the weight of the drop, are then arranged upon the plate C. The plate J and its attached knives, instead of being secured to the plate E, may be laid upon the material to be cut. The` drop may then be allowed to fall, cutting all the thicknesses of the material.

rllhis machine is particularly useful for tail- Ors in cutting out clothes, as it permits the cutting of many thicknesses of cloth at a time with the utmost exactness. My improvement may also be used with equal facility and ad` vantage for paper-cutting, metal-cutting, and various other purposes.

In the foregoing description Ihave described the use of a gravitating cutter head or drop, to which the iiexible knives are attached; but it will be readily understood that, instead of a drop, the power necessaryto force the knives through the material maybe obtained by using screws or levers suitably applied upon the back of the plate to which the flexible knives are attached. I, however, prefer the use of the drop, as set forth.

I do not limit or confine myself to the exact form or arrangement of any ofthe parts herein described, as that may be varied in many ways without departing from my improvement Having thus described my invent-ion, I claim as new and desire to secure by Letters Putentl. The slotted studs Lund bolts K, in coinbnaition with the knives M and slotted plate J, all constructed as shown sind described, to permit of adjustment in the manner specified.

2. In combination with flexible knives, I Claim the slotted plates J, upon which the said knives are set and held, substantially :is herein described.

3. The combination of the frame A B D, bed-plate O, drop-plete E, slide F, knife-plate J, bolts K, studs L, and knives M with each other, substantially' as herein shown and de scribed, and for the purpose set forth.

SOLOMON MAYER EISEMAN.

l/Vitnesses:

LoUIs J. SELIG, LoUIs WATERMAN.

Images