US357965A - Fourths to franklin e - Google Patents

Description

(No Model.) 2 Shet sSheet 1.

H. 1-. NESMITH.

MACHINE FOR SCORING AND CUTTING PASTEBOARD.

Patented Feb. 15. 1887.

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, N. PETERS. Phowl-ilhugnpher. Washington. v.04

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H IQNESMITH.

MACHINE FOR SOORING AND CUTTING PASTEBOARD. I $10,357,965 Patented Feb 16,-1887.

UNITED STATES PATENT OFFICE.

HENRY I. NESMITH, OF ROCKLAND, MASSACHUSETTS, ASSIGNOR OF THREE FOURTHS TO FRANKLIN E. NESMITH, OF SAME PLACE.

MACHINE FOR SCORING AND CUTTING PASTEBOARD.

SPECIFICATION forming part of Letters Pate'nt-No.357,965, dated February 15, 1887.

Application filed March 8, 1886. Serial No. 194,399.

To all whom it may concern.-

Be it known that I, HENRY I. NEsMITH, of Rockland, in the county of Plymouth, State of Massachusetts, have invented certain new and useful Improvements in Machines for Scoring and Cutting Pasteboard and Similar Material, of which the following is aspecification, taken in connection with the drawings accompanying and forming a part hereof, in

which Figure 1 is a front elevation of a scoring and cutting machine provided with my improvement. Fig. 2 is a longitudinal sectional View of the same. Fig. 3 is an enlarged View [5 showing the relative positions of the scoring disk, cutter, andlarge roll. Figs. 4, 5, 6, and 7 are plans and edge views of various forms of cutters.

The object of my present invention is to provide a simple and easy means by which a sheet of pasteboard may be severed at .practically the same time as when it is scored without injury to the machine; and it consists in a cuttingknife of the kind hereinafter shown and described mounted in such relation to the scoring-disk as to follow it closely and sever the board along the line of score, as will be hereinafter more particularly set forth.

The greater part of the machine shown is old and well known, and willnot therefore require a detailed description, but only such as may be necessary to show clearly the application of my improvement, which is simple and easily understood.

A is the frame of the machine, which is of suitable shape to support the metal cylinder or rollerB, as also the oross-beam G, mounted above the roller B, and a feed-table, D, over which the board passes when it is fed into the machine to be scored or cut. A table, E, is provided in front of the machine to receive the board after it has been scored or out. The shaft of roll 13 is provided with a drivingpulley, by which power may be applied. The cross-beam C carries on its under side the triangularly-shaped heads a, in the lower part of each of which is loosely mounted a scoringdisk, 11, which is provided with a cutting edge. The heads a are so mounted relatively to the (No model.)

roll B that when a piece of pasteboard is fed onto the roll and under the disks b, the disks will revolve and score or cut into the surface of the board to a sufficient depth to enable it to be bent easily at that point; but the disks are not set closely enough to the roll (see Fig. 3) 5 5 to touch it and thus out the board in two. A piece of board might be cut in two by the use of the disks 6 alone without my attachment; but if the disks were set down sufficiently upon the roll to effect this the surface of the roll would be cut and very soon be spoiled.

In order to cut the board,when desired,without danger of spoiling the roll, I provide an arm, d, secured to the side of cross-beam C, and of such shape as to project downward in front of the disks Z), and provide it at its lower end with a knife, 1, of the shape shown, Figs.

3, 4, 5, and 6. The lower end of the arm (1 may be made adjustable, so that the position of the knife may be readily changed, if desired, and the upper end of the arm may be secured in any suitable manner to the crossbeam 0 to permit of its being moved from point to point on the beam, as may be desired. The point of the knifef is so set as to project close to the surface of the roll B and immediately in front of and near to the scoring-disk,

as shown, Figs. 2 and 3. The lower edge, k,

of the knifefis not sharpened, but is left flat, and so may touch the roll B without cutting or damaging it. The upper edge, m, of the knife toward the disk I) is sharpened to a cutting-edge, and is directly in front of and in the same plane with the edge of diskb. The board after passing the disk is forced onto the knife 8 and severed along the line of score made by the disk.

The precise form of the knifef is not material, so long as it is so constructed as to project well in toward the disk and near to or 0 upon the roller B, in order to receive the board and sever it without mar-ring or damaging the roller. When the edge of a sheet of board is to be trimmed, I prefer to use a right or left hand knife of the form shown, Fig. 5 or 6, 5 provided with a wing or flange, h, set at right angles to the shank'portion. This wing is set close to the surface of the roll B, and serves to hold the board slightly up from the roll and against the cuttingedge, and it also acts to throw off the marginal strip which is severed from the sheets. A knife of this kind may also be used mid-way of a knife of the form shown at f; but in such case it would be of the shape of an inverted T, (see Fig. 7,)that is, would be provided with a wing on either side. For some kinds of material it might be preferable to use this form of knife instead of the form shown, Fig. 4, as the wings or side projections serve to hold the material slightly up from the roll 13 as it is forced onto the knife, and thus prevent all liability of its passing under and clear of the knife in case the knife does not touch the roll B.

As will be obvious, the arm 01 may be mounted on an independent supporting beam or bar instead of on beam 0; but the precise method of supporting the arm is .not material.

The rolls 1" 0" shown, Fig. 2, are pressingrolls to keep the stock smooth as it enters between the large roll B and the scoring-disks.

Hitherto I have spoken only of placing the v cutting-knife in front of andin the same plane with the scoi'ingdisk; but in certain cases it may be desirable to first run the sheet of board through the machine, scoring it in certain places, but not cutting it, and then run it through a second time,scoring it in new places, and at the same timecutting it in some or all of the places Where it was formerly scored. In such case the knife will not be set directly in front of the scoringdisk and in the same plane I proceeding in this Way arises in one case, for

example, when it is desired to cut a sheet closer to a line of score than the thickness of 0 the heads a will permit the disks b to be set. The bearings of these disks prevent one of them being set nearer to another than the width from the center to center of their combined bearings, and when it is desired to sever 5 the sheet at an intermediate point it must first be scored at that point, and then when it is again passed through the machine it may be cut on this line of score, and at the same time scored as near to the line of cut as may be desired, the cutting-knife having been set and the scoring-disks changed in position in the meantime, as required.

What I claim is 1. In a machine for scoring and cutting pasteboard, the combination, with the roll B and the cross-beam O, of the scoring-disks supported by the said beam, the stationary cutting-knives, and the arms by which the said knives are supported in front of the said scor- 6o ing-disks, substantially as set forth.

2. The combination, with the roll Band the cross-beam O, of the scoring-disks supported by said cross-beam, and the stationary cuttingknives having projecting points extending to- 55 ward said disks, substantially as set forth.

3. A cutting-knife for a scoring and cutting machine, having at its base one or more wings or flanges extending at right angles to the shank orbody of the knife, substantially as set forth.

HENRY I. NESMITH.

\Vitnesses:

WM. AQll/IAOLEOD, F. E. NESMITH.

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