US1353052A - Electrical cloth-cutter - Google Patents

Description

F. M. LASERSON. ELECTRICAL CLOTH CUTTER.

- APPLICATION FILED JUNE 30.1919. v 1,353,052.. PatentedSept. 14, 1920.

2 SHEETS-SHEET I.

I 0 m 7 ATTORNEY F. M. LASERSON.

ELECTRICAL CLOTH CUTTER.

" APPLICATION FILED JUNE 30. 1919. 1,353,052. Patentedsept. 14,1920.

2 SHEETS-SHEET 2 BY viz/m4 1,

UNITED stares FREDERICK M. LASERSON, on NE YORK, N. Y.

' p ELECTRICAL CLOTH-CUTTER.

This invention relates to electrical cloth cutters and the object of the invention is to provide a machine of small and compact design and construction adapted to be manufactured at a relatively low cost and particu-' larly designed to be used to out a comparatively few layers of cloth, though not expressly limitedthereto.v

One object of the invention s to provide a machine comprising but a few parts, rigidly and well assembled and well adapted, because of its size and compact construction, to delicate or fine work. V

Another object of the invention is to provide a generally improved electric cloth cutter. Still another object is to provide mproved sharpening means for the knife. lVith these and other ancillary ob ects 1n view my invention is embodied in acutting machine arranged and constructed as hereinafter set forth and as illustrated in the accompanying drawings, in which' Figure 1 is a front view of the machine with parts omitted and looking in the direction of arrow 1 in Fig. 2;

Fig. 2 is a side view looking in the direction of arrow 2 in Fig. 1;

Fig. 3 is a sectional view taken on line 33 ofFig.2;

Fig. 4 is an end view looking in the direction of arrow 4 in Fig. 2; and

Fig. 5 is a detail view of the sharpening means.

The reference numeral 1 denotes a fiat base having the finished flange 2 so that it.w1 ll slide easily over the table. The base is rounded at the edges as at 3, 3 to enable ity an aperture or cut out portion in the wall 5. The bracket 4 is provided with a foot 15 and is secured to the base by screws 16, 16, see

Fig. 4. 17 is a foot to facilitate the entering of themachine in the'layers of cloth to be cut and'to gather up, as it were, the layers of cloth against the knife 13. l

The bracket 4 has an upstanding lug 18 to which is secured "the operating handle 19 and a 'fiber vplug 20 for connection with an ordinary plug from a lamp socket. To the v front of the machine the plug 20 carriesa lamp-23 for illuminating the work as will be understood. H

,The motor 24 for operating the knife 13 25. The motor shaft26 extends from the hub 27 of the motor and the hub 27 enters the recess 11 aforesaid in'the boss 9 to accus rately center the motor and support it. The motor carries a pinion 30 located iii the recess 7 aforesaid'and which drives a gear 31 located in the recess 8. The gear 31 runs on a bearing 32 on the fixed stud 33. The knife 13 is secured to the gear 31 by a screw Cap 34.

The foot 17 is slit as at 35, Fig. 3, to permit passage of the knife and the base is cut out at 36 for the same purpose. 37 is a lint hole to permit the floss or lint caused by the cutting to pass away from the knife as will be understood. I It will be understood without further de scription or illustration that suitable electrical connections are provided leading from the plug 20 to the motor to supply the latter with current. In F igs'. 1 and 2 a snap switch 37 is shown so that the operator may start and stop the motor.

In order to sharpen the knife there is secured to the bracket wall 5 a small bracket 40 to which is pivoted at 41 an arm 42 which carries two rotatably mounted abrasive wheels 43, 43. The wheels are held in the position shown in Fig. 3 across the knife 13 by a spring 45 which pulls the arm 42 against a stop 46. The bracket 40 extends into the cut out portion 14 in the bracket 4 and the arm 42 is mounted transversely in said out out portion or opening 14.

When the operator desires to sharpen the knife, he takes hold of the handle 48 which is on the outside wheel 43 and pulls said handle toward the knife thereby bringing ear-ear oFE CB Specification of Letters Patent. Patented Sept, 14, 1920. I 1 Application filed a e so, 1919. Sara No. 07,672.

e 10 is secured to the bracket 4 by three screws apart for repairs and the like. The sharp-' ening means may be made as a unit as shown in Fig. 5 and thereafter attached to the ma chine, which, as seen, is'compact and comprises but a few parts. The knife is protected by running in a recess 50 in the bracket and no special knife guard required.

While I have illustrated my invention in its preferred form it will be understood that I donot wish to be limited to the precise details shown but that changes may be made without departing from the principle of the invention and the scope of the appended claim.

I claim:

In a cloth cutting machine the combination of a base, an upright bracket secured thereto, 7 a semi circular flange portion formed integral with the said bracket and extending to the one side thereof overhanging the said base, a motor having a hub supported in said'upright bracketfmeans for securing the said motor to and underneath the said semi-circular flange, which latter serves as a means for partially protecting the said motor and its"'said" support in the said bracket, a knife mounted on the latter on the side opposite the motor, means for driving said knife from the motor, sharpening wheels for the knife, sharpening wheels supporting means secured'to, the said upright bracket unoerneath the said protecting flange, said supporting means projecting through an aperture in said upright bracket to support the said sharpening Wheels in position to contact with the knife, and means on the outside of said bracket for operating said sharpening wheels into contact with the said knife.

Signed at New York, in the county of New York and State of New York, this 28th day of June, A; D. 1919. p

FREDERICK M. LASERSON.

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