US408193A - Paper - Google Patents

Description

(No Model.)

0. T. RIDGELY. TOOL FOR CUTTING PAPER, TRIMMING SHADES, &c.

No. 408,193. Patented July 30, 1889.

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UNITED STATES PATENT OFFICE.

CHARLES T. RIDGELY, OF SPRINGFIELD, OHIO, ASSIGNOR OF ONE-HALF TO MARK A. SMITH, OF SAME PLACE.

TOOL FOR CUTTING PAPER, TRIMMING SHADES, &C.

SPECIFICATION forming part of Letters Patent No. 408,193, dated July 30, 1889. Application filed S ptember 6, 1888. Serial No. 284,714. (No model.)

To (all whom, it may concern:

Be it known that I, CHARLES T. RIDGELY, a citizen of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and use ful Improvements in Tools for Cutting Paper, Trimming Shades, 850., of which the following is a specification, reference being had therein to the accompanying drawings. This invention relates to a tool for cutting paper, trimming window-shades, and the like work; and it consists in the construction and arrangement of the parts, as more fully here-- inafter described, and pointed out in the claims.

The present tool is an improvement upon the tool forming the subject of a patent granted to me on September 25, 1888, and numbered 389,901.

In the accompanying drawings, forming a part of this specification, and on which like reference-letters indicate corresponding features, Figure 1 represents a side elevation of my improved cutting-tool; Fig. 2, a vertical sectional view on the line at x of Fig. 1 and an end view of a gage-strip; Fig. 3, a longitudinal sectional view 011 line y y of Fig. 1, showing the gage in plan; and Fig. 4, a detail view of the tool-head, looking into the re- 0 ceding face thereof.

Letter A designates the handle of my improved tool, and the letter B the head thereof, being preferably constructed of a single casting of iron or brass, and the handle having 3 5 such relation to the head as to render the manipulation of the tool easy. This head has a receding face C, in which the blade is placed, leaving the outer raised portion D of the head to form surfaces which may run 0 along against the edge of the gage-strip C, together with the blade, and prevent the blade from injuring the edge of the strip. The head is provided with a hole about the center of the receding face, which hole is screwthreaded a portion of its length, and extends through the boss F on the outside thereof. The head is also recessed round the inner end of said hole to receive an india-rubber or other washer G, which extends slightly above or beyond the receding face and receives the blade I-I, consisting of a disk of steel with a sharp edge or periphery to out the paper, (210. The disk is centrally bored to form an arborhole, which hole is constructed with a seat I.

This bore receives the head of an arbor J,

G sufficiently hard to properly hold the blade.

A jam-nut K is then screwed upon the arbor to prevent it from working loose. By this construction the blade may be held against the washer more or less firmly, so as to regulate the freedom of its rotation. Some users prefer the blade to run perfectly free, while others prefer that it should turn with less freedom. By this construction the blade is also kept parallel with the edge of the guidestrip.

The letter M refers to another part of the tool-head, which is made in one piece with the head proper or separately, and secured thereto by solder or otherwise. A gage 0 ex tends across the head, and is guided at the free end by contact with the surface D, and is provided with two lips P, which enter the groove in the guide-strip and stand against one side thereof, and is also provided with a lateral flange Q, which rides upon the upper surface of the strip and prevents the tool from being tipped toward the strip and with a tendency to raise the blade from the material being cut. This gage is constructed with a shank R, which is slidingly mounted in a channel in the portion M of the head, and is shouldered to receive one end of the spiral spring T, whose function is to normally press the gage toward the cutting side of the blade. This spring at its other end bears against an interior shoulder in the channel. The upper end of the shank is screw-threaded thereto to receive a nut S, by which the gage may be limited in its screw descent. By this arrange- 5 mentand construction the tool is accurately guided with respect to the strip, the surface D and the blade running 011 the edge of the strip, as already suggested. The gage yielding in a vertical direction allows the blade to Ice be pressed down more or less to agree with the thickness of the materal, without having to adjust the gage for the various thicknesses cut oftentimes in quick succession.

The small orifice U admits oil to the arbor. The opening V in the head facilitates in drawing the casting from the mold.

It will be noticed from Figs. 1 and 4 that the head is cut away at B. This is done for two purposesfirst, to give access to the blade so as to sharpen it without removing it from the head, if desired, and, secondly, to prevent the head from interfering with the work of the blade when the blade has become much worn and reduced in diameter. This latter object is also accomplished by cutting off the lower part of the head instead of continuing it round in the form of a full circle.

Having thus fully described my invention, what I claim as new, and desire to claim, is

1. In a paper-cutting tool, the combination, With a head having a receding face at one side. thereof to receive the blade,whereby surfaces are left at each side of the blade to act against the guide-strip, and a fixed arbor mounted in the head and projecting into the said recess, of a disk-blade mounted upon said arbor and within the said recess, a gage extending across the head and having a vertical shank, a channel in the head in which said shank is slidingly mounted, and a spring fitted to press the gage normally downward, and a device to prevent the spring from forcing the shank out of the channel.

2. In a paper-cutting tool, the combination, with a head having a shouldered channel in and is mounted in said head and provided with dependent lips, and a flange extending laterally beyond the said lips.

4. In a paper-cutting tool, the combination, with a head, of a disk-blade havinga central bore constructed With a seat, and an arbor fitted to said bore and secured to the toolhead and extending beyond the outside thereof, and a jam-nut screwed on the said projecting end of the arbor.

5. In a paper-cutting tool, the combination, with a head having a screw-threaded arborhole, a recess round said hole, and a Washer fitted to said recess and extending beyond the adjacent surface of the head, of a diskblade having a central bore and fitted upon said washer, and an arbor fitted to said bore in the blade and secured in the head and provided with a jam-nut.

In testimony whereof I affix my signature in presence of two witnesses.

CHAS. T. RIDGELY.

\Vitnesses:

E. S. WALLAcE, WARREN HULL.

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