US802943A - Cloth-cutter. - Google Patents

Description

PATENTED 001:. 24. 1905.

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CARL SCHNEIDER, OF JERSEY CITY, NEW JERSEY, ASSIGNOR TO SOLOMON R. JACOBS, OF NEW YORK, N. Y.

CLOTH-CUTTER.

Specification of Letters Patent.

Patented Oct. 24:, 1905.

Application filed February 9, 1905. Serial No. 244,837.

To all whom it may concern:

Be it known that I, CARL SCHNEIDER, a citizen of the United States, and a resident of J ersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Improvement in Cloth-Cutters, of which the following is a specification.

This invention relates to cloth-cutters in which a reciprocating knife is driven at high speed by suitable power, in the present instance by electricity, with the object in view of providing counterbalanced means for reciprocating the knife whereby the knife may be operated much more evenly than has heretofore been possible. This present object is a very important one in this particular art, where the knife is subjected to great resistance, because of the character of the material in connection with which it is used.

In the accompanying drawings, Figure 1 is a view of the cutter in side elevation, partly in section. Fig. 2 is a front view of the cutter with the presser-foot mechanism and the front of the gear-casing removed. Fig. 3 is a detail view of the geared connection between the motor-shaft and the knife-driving shaft. Fig. 4 is a horizontal detail section in the plane of the line A Aof Fig. 1. and Fig. 5 is a similar detail section in the plane of the line B B of Fig. 1.

The base of the cutter is denoted by 1, the standard by'2, within which the knife 3 is mounted to reciprocate vertically. The standard 2 is surmounted by a gear-casing 4, to which is attached the motor-casing 5. The handle of the cutter, which is attached to the motor-casing, is denoted by 6. Front and back plates 7 and 8 are fitted to slide vertically in engagement with each other and are retained in position by upper and lower bearings 9 and 10. The front plate 7 has fixed thereto a bar 11, which extends downwardly through the lower bearing 10in the gear-casing into position to be secured to the knife 3, as at 12.

The motor-shaft is denoted by 13, and it has fixed thereto a spur-gear 14 within the gear-casing 4. This gear 14 intermeshes with an internal gear 15, fixed to a shaft 16, the rear end of which shaft is rotatably mounted in the back Wall and its front end rotatably mounted in the front Wall of the gear-casing 4. This shaft 16 extends through vertical elongated slots 1718 in the front and back plates 7 and 8, so as to permit the said plates to reciprocate freeiy in a vertical direction.

The front plate 7 is reciprocated vertically by a cam 19, fixed to the shaft 16, which cam engages upper and lower transverse shoulders 20 21 on the front face of the said plate. The back plate 8 is reciprocated vertically by a cam 22, fixed to the shaft 16, which cam engages upper and lower transverse shoulders 23 24 on the rear face of the said plate. These cams in the present instance are shown as eccentrics and are arranged exactly opposite to each other, so that the knife-driving shaft 16 is counterbalanced, the front and back plates 7 and 8 being reciprocated in opposite directions. This counterbalancing of the shaft 16 by the oppositely-arranged cams and plates serves to produce a very steady movement of the knife 3 even though the knife be driven at high speed. This steady movement of the knife produces a much superior cut through the cloth, and thereby enhances the value of the cutter.

What I claim as my invention is- 1. In a cloth-cutter, a motor-shaft, a knifedriving shaft geared thereto, front and back plates, a knife carried by one of the plates and oppositely arranged cams carried by the knife-driving shaft fitted to reciprocate the plates vertically and simultaneously in opposite directions for counterbalancing the knifedriving shaft and steadying the movement of the knife.

2. In a cloth-cutter, a motor-shaft, a knifedriving shaft geared thereto, front and back plates, bearings for the said plates above and below the knife-driving shaft, a knife carried by one of the plates and oppositely-arranged cams carried by the knife-d riving shaft fitted to simultaneously reciprocate the plates vertically in opposite directions for counterbal ancing the knife-driving shaft and steadying the movement of the knife.

3. In a cloth-cutter, a motor-casing, a gearcasing, a motor-shaft, a knife-driving shaft mounted in the front and back walls of the gear-casing, a geared connection between the two shafts, front and back plates, a knife carried by one of the plates and oppositely-arranged cams carried by the knife-driving shaft fitted to simultaneously reciprocate the plates vertically in opposite directions for counterbalancing thelr'nife-driving"shaft'and steadycarried by one of the said plates and oppositely-arranged cams carried by the knife- 1 driving shaft for simultaneously reciproeat ing the iolate's in opposite directions.

lnt'estiinony that I claim the foregoing as invention I have signed my name, in presenee-of two witnesses, this 10th day of December', 1904.

CARL SCHNEIDER.

Witnesses:

FREDK. HAYNES, HENRY THIEME.

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