US255358A - Cutting-machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. A. WARTH.

CUTTING MACHINE. No. 255,358. Patented Mar. 21.18.82.

(No Modem. Y 5 2 sheets-sheet, 2.'

A. WARTH. CUTTING MACHINE. No. 255,358, y y Patented MaLZLlSB-Z.

N. PETERS. Phnm-Limugmpher. wnshngmn, D. t:A

UNITED STATES PATENT OFFICE.

yALBIN VARTH, OF STAPLETON, NEV YORK.

CUTTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 255,358, dated March 21, 188,2.

Application filc(ll `cbruaryl0,1882. (No model.)

1'0 all whom it may concern:

.Beit known that I, ALBIN WARTH, a cilizen of the United States, residing at Stapleton, in the county of Richmond and State of New York, have invented new and useful Improvementsin Cutting-Machines, of which the following is a specification.

This invention relates to the class ofcuttingmachines which embody a vertically-reciprocating knif'e whose cutting-edge is adapted to cnt in an upward direction. In this class of machines the material to be cut has hitherto been entirely supported by the upper ends of vertical elastic pins or wires forming an open or penetrable bed; but this contrivance is objectionable because the material is liable to be caughtby thepins, and especially the cut edges thereof, which interferes with the progress ot' the knife in following the pattern; also, because the pins have a tendency to prevent a movement of the material toward and past the knife, which movementis necessary in cutting small pieces of material; also, because when, asis usual, the pins arc applied toV a wooden base the bed formed thereby is liable to loseI its true level by the warping of the wood.

To overcome these objections is the primary object of my invention, which consists in certain novel combinations of parts, hereinafter fully set forth, whereby while the greater part of the material is supported by pins a solid support is afforded to the portion ofthe material which is at or near the point at which it is cut.

This invention is illustrated in the accompanying drawings, in which Figure l represents a side view, partly in section. Fig. 2 is a horizontal section on the line .fr x, Fig. 1. Fig. 3 is a vertical cross section on the line y y, Fig. 1. Fig. .4 shows the knife detached. Fig. 5 illustrates a modification of the knife. Fig. 6 is a perspective view showing the driving mechanism.

' Similar letters indicate corresponding parts.

The lezterA designates the cloth-supporting bed, consisting of upright pins or projections s, rising from a suitable base, such pins being preferably made of an elastic materialsuch as tempered steel. Upon this bed rests, when in use, the base B of my machine, commonly termed a clothplate,7 which is preferably made circular, and from which rises a standard, C, in or upon which is arranged the knife or cutter D. This knit'e D is xed to a bar, F, (see Fig. 3,) connecting with an eccentric wrist-pin, e, upon a revolving disk, G, whence the knife receives a vertically-reciprocating motion. The disk Gis xed to a shaft,

Gf, having its bearings in an arm, Gr2,swiveled its mouth downward', in such a manner as to receive in it the cutting-edge o of the knife, this socket being applied to the standardG, and having at least one approximately sharp edge, and" preferably two, adapting it to cooperate with the knife-edge. The socket moreover, is arranged at a sufficient distance above the base or cloth plate B to leave a space between the two forthe passage of the material, and to permit of varying such space the socket is made adjustable relatively to the base, as hereinafter explained. The motion of the knife D is so gaged relatively to the position of its cuttingedge o thereon that on the upward stroke of the knife such edge rises from a point below the sutface'of the base or cloth plate B above it a sufficient distance to pass through and out the material and enter the socket 1'., while on the downward stroke of the knife it passes below the upper surface of the base.

When the material is to be cut the edge of the hase B is entered between the upper ends of the pins of the bed A and the material, so that the material passes over the base to the knife or cutter, whichcuts it as the machine is shoved along over the pins. Hence, it will be seen, the material is furnished with a solid support at or near the point at which it is cut, while the knife l1 as the proper motion to act on IOO the material in the required upward direction. The movement ot' the knife D below the base B is permitted by t-he openings or spaces due to the construction ot'the bed of the pins or wires s, such openings receiving theknife, and this construction ofthe bed, moreover, permits a movement of the cutter and its connections in any direction; but a solid bed or platform also can be used, the same being provided with a suitable opening for thedescentof theknit'e, the material being in that event. moved toward the knife in cutting.

Vhen the maehineis used upon the wil e bed A the base B is prel'crably beveled upon its edge or edges, both in an upper and lower direction, to an approximately sharp edge, l, in order to facilitate the movement of the base beneath the material.

For the purpose of making the k nife-recciving` socket t' adjustable, it is secured to a vertical rod, i', (see Figs. 1 and 3,) arranged to slide in or upon the cutter-standard C, and the latter is provided with a set-screw, i2, adapted to engage. tllc slide-rod; but other means can be readily devised and used to effect this purpose.

'lhe cutting operation is facilitated upon the wire bed A by relieving the bed of the weight ofthe machine, or, in other words, by arranging the base or cloth plateB to im pinge against the upper ends of the wire s without bearing hard thereon, and this object. is ei'ected inthe following manner: The swivel-arm G2 is jointed to a secondary arm, G3, (see Fig. 6,) which swings in a horizontal plane upon a vertical pivot, n, and rests intermediate of ite ends upon a track, H, of segmental form, by meansof antifriction rollers r, so that the weight of the secondary arm, together with the swivel-arm and the base B and its connections, is practically borne by the track. A vertical shaft, J, forms the joint between the arms Gr2 G3, and such shalt is geared with the shaft G by means of bevel-wheels II, while it is also geared or connected with a main shaft, Q, by means of a belt, U, passing over a pnlley,f, upon the vertical shaft, a pulley.]", upon the main shaft, and two pulleys,f2, upon the pivot u of the secondary arm, the whole constituting a driving mechanism for the shaft G', adapted to permit the progressive movement of the cuttingmechanismin cutting. Suchdrivingmeehauism, however, can be modified as circumstances or the views of the constructor may render expedient.

The inclination of the edge of the cutter to the upright line in which the cutter moves may be varied, and the edge may even be horizontal, provided it points upward, so as to cut while moving upward. The inclination of the cutting-edge shown in the drawings is, however, in my opinion the best for general use.

In Fig. 5 I have shown the knife D as heilig provided with two cutting-edges, o o', whereby it is adapted to cut both in an upward and downward direction.

What I claim as new, and desire to secure by Letters Patent, is-

l. The combination, substantially as before set forth, ofthe base of the machine, the cutter-standard, the cutter having an inclined cutting-edge arranged to out in an upward direction, and the knife-receiving socket ar ranged above said base, with a space between the two for the passage of cloth.

2. rIhe combination, substantially as before set forth, of the base of the machine, the eutterstandard, the cutter having an inclined cutting-edge arranged to cut in an upward direction, the knife-receiving socket, arranged with its mouth downward above said base, and the means cf adjusting the relative position ot said base and said knitereceiving socket.

3. The combination, substantially as hereinbefore set forth, ofthe base, the vertically-reciprocating knife, the kuifereeeiving socket, arranged with its mouth downward and above the cloth-plate to co-operate with the cuttingedge of the knife, and a bed for supporting the cloth-plate, having an opening to allow the movement of the knife.

4. The combination, substantially as hereinbeforc set forth, of the bed composed of npright elastic projections, the base movable on such bed beneath the material to be cut, the standard risingfrom the base and following the cut produced in the material, the vertically-reciprocating knife having an inclined edge arranged to cut on its upward stroke, and the knife-receiving socket, arranged mouth downward above the base to co-operatewith the cutting-edge of the knife.

5. The combination, subslantiallyas hereinbefore set forth, ofthe base er cloth plate, the cutter-statalard, the knife having an inclined cutting-edge adapted to out in an upward direction, the knife-receiving socket, arranged above the base with its mouth downward, and

the swivel-arm.

(i. The combination, substantially as before set forth, ofthe base, the cutter-standard, the knife having an inclined cutting-edge adapted to cut in an upward direction, the knife-receiving socket, arranged above the base with its mouth downward, the swivel-arm, the secondary arm jointed to the swivel-arm, the track supporting the secondary arm, and the driving mechanism of the cutter.

In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.

All 31N WARTII. [L. S.]

Witnesses:

W. HAU'FF, CHAS. WAHLERS.

TOO

IIC

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