US1865399A - Roll paper cutter - Google Patents

Description

Jufic 28,1932. J. w, MCCLINTOCK 1,865,399

ROLL PAPER CUTTER Fild April 22, 1929 l 2% F 7 f6 1 25.

Patented June 28, 1932 UNlTE-D STATES PATENT QFFICE JAMES W. MCCLINTOCK, OF LOS ANGELES, CALIFORNIA, ASSIGNOB 'IO E-Z REACH PAPER CUTTER CORPORATION, LTD., OF LDS ANGELES, CALIFORNIA, A CORPORATION 0F CALIFORNIA ROLL PAPER CUTTER- Application filed April 22,

My invention relates to a roll paper cutter and has for its principal object, the provision of a relatively simple, inexpensive and convenient device that receives and supports the web portion of the paper as it is unwound from a roll, and said device being provided with an adjustable plate that functions as a straight edge against which the web of paper may be engaged and-torn 0E.

Further objects of my invention are, to provide a roll paper cutter having a spring held roller, over which the web of paper passes before it reaches the straight edge, and, to combine with said roller a gravity member that functions to move the end of the web of paper downwardly away from the straight edge, against which said web is torn, thereby moving the end of the web into position where it may be conveniently grasped between the thumb and fingers when a subsequent portion of the roll of paper is to be unwound and torn off.

My present invention is an improvement upon the roll paper cutters forming the subj ect matter of my co-pending patent applications filed March 22nd, 1928, Serial No. 263,637, and Serial No. 284,423, filed June 11th, 1928.

With the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement of parts that will hereinafter be more fully described and claimed and illustrated in the accompanying drawing, in which:

Fig. l is a top plane view of a roll paper cutter embodying the principles of my invention.

Fig. 2 is a cross section taken on the line 22 of Fig. 1.

Fig. 3 is an end elevational view of the roll paper cutter.

Fig. 4 is a cross section taken on the line 4.-4 of Fig. 2.

Referring by numerals to the accompanying drawing, which illustrate, a practical em- 1929. Serial No. 357,113.

bodiment of my invention, 10 designates a metal plate having its end portions bent at right angles to form outwardly projecting horizontally disposed end plates 11.

Formed in the rear portions of these end plates are slots 12 that are inclined approximately fifteen or twenty degrees relative to a vertical plane and loosely arranged in said slots are trunnions 13 that project from the end of a small roller 14, which latter is prefeliilbly formed of wood, hard rubber or the li e.

Arranged on the outer face of the end plates 11 in front of the slots 12 are springs 14 that are secured to said plates in any suitable manner and the free rear ends of said springs are bent into up-turned hooks 15 that engage beneath the trunnions 18 and thus said trunnions are yieldingly held at the upper ends of slots 12.

A small wire rod 16 occupies a position in front of and parallel with the roller 14 and the end portions of this wire rod are bent rearwardly at right angles to form short arms 17, the rear portions of which are adapted to rest on the end portions of the periphery of roller 14 and the terminal portions 18 of these arms are journaled in apertures that are formed in end plates 11 above the slots 12.

Formed in the front portions of the plates 11 are short vertically disposed slots 19, and passing through said slots are threaded pins 20 that are secured in any suitable manner to the end portions of a metal plate 21, which latter extends from one end plate to the other.

Located on the outer portion of each threaded pin is a washer 22 that bears against the outer face of the corresponding end plate 11 and bearing against said washer is a winged nut 23.

Formed integral. with the ends of plate 21 and projecting at right angles therefrom and preferably on opposite sides of the pins 20 are ears 24 which normally bear against the inner faces of the end plates.

One of the longitudinal edges of plate 21 is provided with a beveled edge 25 and the opposite longitudinal edge is serrated, as desig nated at 26.

The material in the longitudinal center of plate 21 is pressed outwardly on one side to form a centrally arranged reenforcing rib 27.

By providing the ends of plate 21 with the threaded pins that project through the slots 19 and mounting the winged nuts on the outer ends of said threaded pins, the plate 21, which functions as a straight edge against which web of paper is torn, may be easily and conveniently adjusted so as to occupy different angular positions and owing to the length of the slots 19 the plate may be ad justed vertically for a limited distance.

My improved roll paper cutter is secured to a suitable support such as a counter or show case above a roll of wrapping paper and the web of paper from said roll is brought upwardly behind the roller 14, thence over said roller and the end of said web projects forwardly and downwardly from the top of the roller with the end of said web positioned a short distance below the plate 21 where said end may be readily grasped between the thumb and fingers.

The weight of the wire rod 16 resting on the web of paper at the point where it passes over the ends of roller 14 holds the web of paper on said roller and the intermediate portion of the wire rod 16 forces the end of the web of paper downwardly away from the plate 21, as illustrated in Fig. 2.

To unwind and tear off a portion of the web of paper the end of the web that projects downwardly and forwardly from the rod 16 is engaged between the thumb and fingers and the web of paper is drawn outwardly until the desired amount has been unrolled and during this unwinding operation the web of paper passes readily over the roller 14 and which latter is yieldingly supported by the springs 14.

Plate 21 is held in fixed position by the winged nuts 23 that are tightened on the threaded rods 20 and to tear off the withdrawn portion of the paper, the latter is drawn upward with a quick movement so that it engages the outer edge of the plate 21 and thus the web of paper is torn off along the straight tearing edge of the plate. Plate 21 may be adjusted vertically by raising or lowering the threaded pins 20 in the slots 19 and said plat-e may be shifted into various angular positions inasmuch as the threaded pins 20 function as trunnions and after proper adjustment, the plate is locked by tightening the winged nuts 23 and which action clamps the end walls 11 between the washers 22 and the ears 24 that project at ri ht angles from the ends of plate 21.

he tearing plate may be adjusted so as to present the beveled tearing edge 25 or the serrated tearing edge 26.

Thus it will be seen that I have provided a roll paper cutter that is relatively simple in construction, inexpensive of manufacture and very effective in performing the functions for which it is intended.

It will be understood that minor changes in the size, form and construction of the various parts of my improved roll paper cutter may be made and substituted for those herein shown and described without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

I claim as my invention:

1. In a roll paper cutter, a horizontally disposed U-shaped frame provided in its ends with slots, a roller, trunnions projecting from the ends thereof through said slots, springs mounted on the ends of said frame for normally holding the trunnions at the upper ends of said slots, a paper engaging rod arranged between the ends of said frame in front of said roller, crank arms on the ends of said rod, the upper rear ends of which crank arms are journaled in the ends of the frame above the bearings for the trunnions therein, the rear portions of which crank arms bear on the upper surfaces of the ends of said roller and that portion of the rod between the crank arms occupying a position in front of and parallel with said roller.

2. In a roll paper cutter, a horizontally disposed U-shaped frame provided in its ends with slots, a roller, trunnions projecting from the ends thereof through said slots, springs mounted on the ends of said frame for normally holding the trunnions at the upper ends of said slots, a paper engaging rod arranged between the ends of said frame in front of said roller, crank arms on the ends of said rod, the upper rear ends of which crank arms are j ournaled in the ends of the frame above the bearings for the trunnions therein, the rear portion of which crank arms bear on the upper portions of the ends of said roller, that portion of the rod between said crank arms occupying a position in front of and parallel with said roller, and a tearing plate adjustably and reversibly mounted on the ends of the frame and occupying a position above and in front of said roller and rod.

3. In a roll paper cutter, a horizontally disposed frame comprising a rear plate and a pair of parallel end plates, there being inclined slots formed in the rear portions of the end plates, a paper supporting roller, trunnions projecting from the ends of said roller through said slots, springs arranged on the outer faces of said end plates for normallyretaining said trunnions at the upper ends of said slots, the forward portions of said end plates being rovided with slots, a tearing plate arranged between the front portions of said end plates and occupying a position above and in front of said roller, said plate being provided with one straight sharp tearing edge and with a serrated tearing edge, threaded pins projecting from the ends of said tearing plate through the slots in the front portions of said end plates, nuts located on said threaded pins outside said end plates and ears projecting from the ends of said tearing plate and bearing against the inner faces of the end plates of the frame.

In testimony whereof I afiix my signature.

JAMES W. MGGLINTOCK.

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