US255102A - Sandor danheim - Google Patents

Description

(ModeL) S. DANHEIM. CUTTING MECHANISM.

Patented Mar. '21, 1882.

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' 'INYENTOR:

ATTORNEYS.

UNrTen STATES PATENT OFFICE.

'SANDOR DANHEIM, OF NEW YORK, N. Y., ASSIGNOR OF ONE-FOURTH TO JOHN s. nnnvsou,

OF SAME PLACE.

CUTTING MECHANISM."

SPECIFICATION forming part of Letters'Patent No. 25 5,l02, dated March 21, 1882.

Application filed July 22, 1881.

To all whom it may concern: I

Be it known that I, SANDOR DANHEIM, of the city, county, and State of New York. have invented a new and Improved Cutting Mechanism, of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved mechanism for cutting paper, cloth, leather, sheet metal, 850., very rapidly and with clean sharp edges.

The invention consists in a'handle-frame with a triangular knife at the lower end, to which frame two overlapping cutting-disks are pivoted, the frame being provided with a short pointed nose between the two disks,trom which nose opposite shoulders extend across the frame, the out parts of the material passing over and under these shoulders.

The invention further consists in a lever loosely mounted on the journal of the upper cutting-disk and provided with a spring-pawl catching in radial recesses in the side of the upper cuttingclisk, so that this cutting-disk can be rotated by operating the lever.

In the accompanying drawings, Figure lis a longitudinal elevation of my improved cutting device. Fig. 2 is a cross sectional elevation of the same on the line .r as, Fig. 1. Fig. 3 is a horizontal sectional view of the same on the line y y, Fig. 1.

Similar letters of reference indicate corresponding parts.

The metal frame A is provided at one end with a handle-loop, B, and atthe opposite lower end with a triangular sharp-edged knife, 0, from the end of which the edge of theframe is gently curved backward and upward. Two sharp-cdged eutting-disks,D and E, are mounted on the journals D and E of the frame A and secured on thesejournals by nuts D and E or can be pivoted to the frame in some other suitable manner. However, in all cases the cutting-disks must overlap each other slightly, as shown, and must almost be in contact. The lower wheel or disk,E, must not project beyond the lower edge of the frame A, so as not to deface the table upon which the material to be cut rests, and at the same time to prevent the edge of this disk from being blunted or injured. The frame is provided with a short nose or projection, F, the point of which is in line with theinner crossing of the peripheries of the disks (ModeL) D and E. The frame is provided with a rectangular bend extending l'rom the nose F transversely across the frame, and forming the opposite shoulders, G and H, on opposite sides of the frame; or the frame may be provided on each side with a groove, the upper edge of one groove and the lower edge of the opposite groove forming the above'described shoulders. A lever, J, is loosely mounted on the journal of the disk D, and is provided with a springpawl, K, which catches in notches or recesses L in the side of the upper cutting-disk.

The operation is as follows: The instrument is seized by the handle B and pushed forward, the edge of the material that is to becutsliding up theprojection orknife 0 upon the edge of the wheel E, and is cut by the disks D and E. The noseF guides the mater-ialon one side of the out upon the shoulder G, over which it passes as the instrument moves forward, and the material on the other side of the cutis guided slightly downward to pass along the shoulder H as the instrument is moved forward. Ifthe material tobe cut affords too much resistance to permit moving the instrumentforward, the upper disk, D, is rotated by means of the lever J. If this lever is raised, the end of the spring K catches in one of the notches L, and thus rotates the disk D, as indicated by the arrow. As soon as the lever J is released it drops by its own weight, and is then again raised, and so on. The handle B and the lever Joan both be seized at the same time, and the instrument can be pushed forward while operating the lever. The cutting-disks can be surrounded by a casing provided with slots corresponding to the shoulders Gr and H. 1

If desired, the handle and lever can be ar ranged at the opposite end of the instrument, so that the instrument can be drawn instead of pushed. If the cut is to begin in the middle of the piece of material, the material is pierced by means of the knife 0, and the cutting device is gradually introduced.

- If desired,aflexiblepower-transmitting shaft can be attached to the upper disk, D, to operate the same.

Having thus described my invention, Iclaim as new and desire to secure by Letters Patent-- 1. A frame for a cutting mechanism, constructed, substantially as herein'shown and de scribed ,with depressions or grooves in the sides,

forming shoulders G and H, to prevent an undue spreading, bending, and buckling of the material, as Well as prevent undue friction on the frame, as set forth.

2. In a cutting mechanism, the combination, with the frame A, provided with shoulders G and H on the sides thereof, otthe disks D and E and the knife C at the lower end of the frame, substantially. as herein shown and described, and for the purpose set forth.

3. In a cutting mechanism, the combination, with the frame A, provided with shoulders G and H on the sides, of the disks D and E, the knife 0 at the lower end of the frame, and of the projection F, substantially as herein shown and described, and for the purpose set forth.

4. In a cutting mechanism, the combination,

with the frame A, of the cutting-disk E, the cutting disk D, provided with notches or recesses L, the lever J, and the spring-pawl K, substantially as herein shown and described, and for the purpose set forth.

5. In aoutting mechanism, the combination, with the frame A, of the handle B, the point C, the projection F, the cutting-disk E, the cutting-disk D, provided with notches or recesses L, the lever J, and the spring-pawl K, substantially as herein shown and described, and for the purpose set forth.

SANDOR DANHEIM.

Witn esses:

OSCAR F. GUNZ, C. SEDGWICK.

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