US407861A - Pcterj - Google Patents

Description

(No Model.) v 2 Sheets-Sheet 1.

J. E. HAMILTON. CUTTING STICK FOR .PAPER CUTTING MACHINES.

Patented. July 30, 1889-.

(No Model.) 2 Sheets-Sheet 2..-

, J. E. HAMILTON.

CUTTING STIGK FOR PAPER CUTTING MACHINES.

-No. 407,861. Patented July 30, 188 9.

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JAMES EDIVARI) I HAMILTON, OF Tl/VO RIVERS, IVISOONSIN, ASSIGNOR TO THE HAMILTON MANUFACTURING COMPANY OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 407,861, dated uly 30, 1889.

Application filed April 2, 1886. Serial No. 197,493. (No model.)

To all whom it may concern:

- Be it known that I, JAMES EDWARD HAM- ILTON, of Two Rivers, in the county of Mauitowoc, and in the State of Wisconsin, have invented certain new and useful Improvements in Cutting-Sticks for Paper-Cutting Machines and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to cutting-sticks for paper-cutting machines; and it consists in certain peculiarities of construction whereby such sticks can be furnished at a saving in cost with a great increase in durability, this construction being hereinafter described with reference to the accompanying drawings, in which Figure 1 represents a perspective view of the preferred form of my invention; Fig. 2, a transverse section of Fig. 1. Fig. 3 is a longitudinal vertical section of. a machine with my cutting-stick located therein.

I-Ieretofore the cutting-sticks for papercutting machines have been made of solid pieces of suitable hard wood generally square in cross-section. Each of these sticks, as one face thereof became worn out by the action of the knife, would be turned so as to present a surface, and so on until the entire stick became worthless, though only worn at such places as had been acted upon by the knife-edge.

It has been usual to accompany each paper-cutting machine with a number of cutting-sticks,and in such machines required for continuous work these sticks are quickly rendered useless, thereby requiring new ones at short intervals and materially adding to the expense of operating of such machines, owing to the cost of said' sticks. In my invention but one cutting-stick is designed to accompany a machine, said stick being of the usual size, but provided with a removable section or strip-that is arranged to come in contact with the edge of the knife. This removable section of the cutting-stick is designed to have its successive faces brought in position under the knife as fast as worn out, and when all these faces are rendered worthless said section can be readily replaced by another at a trifling expense.

Referring by letter to the drawings, A represents a cutting-stick for a paper-cutting machine, said stick beingof the usual dimensions as to length and width. That portion of the stick designed to come in contact with the knife is recessed to receive a removable section or strip B.

In Fig. 1 I show the removable section B retained in position by a plate 0, preferably of metal, that is flush with the main body of the cutting-stick and secured thereto by a series of screw-bolts D, having their heads a and nuts I) necessarilycountersunk. To further aid in securing and tightening the plate 0 to the mainstick, so as to bind the removable section B in place, I employ a series of screws E, also having their heads countersunk.

By loosening the screw-bolts D the section B may be either turned over to presentanew face to the knife or entirely removed when worn out and replaced by a new one, it being intended to accompany each cutting-stick with a series of these sections or strips and to put the latter up in suitable lots to furnish to the trade.

The preferred form of the device is that shown in Fig. 1, as the metal plate 0 prevents the stick A from warping, and this is a great advantage; but many minor changes may be made without departing from the nature and principle of my invention.

Though I prefer to make my main bodypiece of wood, I may employ metal or any other suitable material therefor, if desired.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, isj 1. In a paper-cutting machine, the combi nation, with a cutting-stick having a recess formed in its upper'face, of a removable see tion fitted in said recess, and a clampingplate secured directly to the side of the said stick for retaining said removable sect-ion in place, substantially as described.

2. In a paper-cutting machine, the combihave hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of Wis- I0 consin, in the presence of two Witnesses.

JAMES EDWARD HAMILTON.

WVitnesses:

H. G. UNDERWOOD, N. E. OLIPHANT.

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