Paper cutter assembly

A paper cutter assembly for use in combination with a supported roll of paper. The assembly, comprises a displaceable stationary single-strand cutter wire member that is positioned under and across the width of the paper roll, and a movable paper-cutting assisting subassembly that includes a pulley member disposed on the cutter wire member, and a handle member that is removably connected to the pulley member. When the pulley member is pulled by the operator toward himself and across the width of the unrolled paper with the use of the handle member, the cutter wire member is displaced toward the operator, the unrolled paper is cut in a straight and clean condition across its width, and is severed from the rest of the roll of paper in a quick and safe manner by the movement of the displaced wire member.

BACKGROUND OF THE INVENTION 
This invention relates to the paper cutter art and, more particularly, to a 
paper cutter assembly for use in combination with a roll of paper and also 
in combination with a means for supporting and unrolling the paper from 
the roll. 
Paper cutters per se are old, as is the use of wire cutting element(s) of a 
paper cutter. Nevertheless, wire paper cutters are being used even 
presently as attachments in modern, recent-technology devices. 
One recent and current application of a wire paper cutter is as an 
attachment to an "Ozalid" print reproduction machine that is commonly 
referred to as the "Bruning 860" (i.e., Model 860, manufactured by, and 
commercially available from, the Bruning Division of Addressograph 
Multigraph Corporation, 1834 Walden Office Square, Schaumburg, Ill. 
60172). As will be shown and more fully described later herein, the 
reproduction paper for the "Bruning 860" is on a roll, is unrolled for 
use, and is cut the necessary length (across its width) with a 
multiple-strand cutter wire that is used in combination with a 
hand-graspable movable member. Unfortunately, the use of this wire paper 
cutter results in the shredding and fraying of some of the constituent 
wire elements of the multiple-strand cutter wire, and a rough and 
sometimes crooked edge tear of the unrolled paper, and also danger to the 
operator because of puncture or cutting (by the frayed cutter wire) of the 
operator's hand which is grasping and is moving the movable member of the 
paper cutter. 
I have invented a wire paper cutter assembly that is useable with the 
"Bruning 860" without any of the inherent disadvantages of the wire paper 
cutter presently used. I have, therefore, significantly advanced the 
state-of-the-art. 
SUMMARY OF THE INVENTION 
The invention is a wire paper cutter assembly which, in combination with a 
roll of paper and also in combination with a means for supporting and 
unrolling the paper from the roll, permits a straight and clean cut of the 
unrolled paper and severance of the paper from the rest of the roll, is 
simple and quick to operate, can be attached to, for use with, a "Bruning 
860" and other similar devices, and, most importantly, presents no danger 
whatsoever to the operator. 
The principal object, therefore, is to teach the structure of such a unique 
wire paper cutter assembly, as illustrated by a preferred embodiment 
thereof. 
This principal object, as well as related objects, of this invention will 
become readily apparent after a consideration of the description of the 
invention, together with reference to the Figures of the drawings.

DESCRIPTION OF THE PREFERRED EMBODIMENT 
As a preliminary matter, reference is made to the prior art, as shown in 
FIGS. 1-3, inclusive. In FIG. 1 is shown the "Bruning 860" copying machine 
100, together with: a roll 200 of paper 210 having a width "W"; and, 
means, generally designated 300, for supporting and unrolling the paper 
210 from the roll 200. Also shown in FIG. 1, and not prior art, is the 
preferred embodiment, generally designated 10, of my inventive paper 
cutter assembly. In FIG. 2 is shown, enlarged and in detail, the prior art 
paper cutter assembly, generally designated 400, that is presently used 
with the "Bruning 860" copying machine 100, FIG. 1. That cutter assembly 
400 is shown in use, with the resultant: shredding and fraying of some of 
the constituent wire elements 411 of the multiple-strand cutter wire 410; 
rough and crooked edge tear 211 of the unrolled paper 210; and, danger to 
the operator 500, because of the puncture or cutting (by the shredded and 
frayed multiple-strand cutter 410) of the operator's hand 510, which is 
grasping and is moving the movable member 450 of the prior art paper 
cutter assembly 400. It is to be noted that the prior art movable member 
450, FIG. 2, includes an eye bolt 460, FIGS. 2 and 3, which surrounds the 
prior art multiple-strand wire 410, FIG. 2; and, in turn, the shredded and 
frayed wires 411 of the multiple-strand wire 410 cut into and severely 
damage the eye bolt 460, as is shown by the designation 460 A, FIG. 3. 
With each sweeping movement of the movable member 450, FIG. 2, to cut the 
unrolled paper 210, the condition of the multiple-strand cutter wire 410 
and of the eye bolt 460 becomes worse, with resultant poorer cutting 
characteristics and more danger to the operator's hand 510. 
Now, with reference to my unique paper cutter assembly 10, FIGS. 1 and 4-6, 
inclusive, it is to be remembered that the assembly 10 is to be used, as 
shown in FIG. 1, in combination with the roll 200 of paper 210 having a 
width "W", and with the means 300 for supporting and unrolling the paper 
210 from the roll 200. 
In the most basic and generic structural form, my paper cutter assembly 10, 
FIGS. 1 and 4-6, inclusive, includes (as can best be seen in FIGS. 1 and 
4) a displaceable stationary single-strand cutter wire member 20 that is 
disposed across the width "W" of the roll 200 of paper, and simultaneously 
is disposed so as to be adjacent to (i.e., under and along) the paper 210 
when it is unrolled; and, means (cooperatively useable with the cutter 
wire member 10), generally designated 30, for assisting in cutting paper 
210 that is unrolled from the roll 200 and that is adjacent to (i.e., on 
and along) the displaceable stationary single-strand cutter wire member 20 
(as shown in FIG. 1), wherein this paper-cutting assisting means 30 is 
movable along the stationary single-strand cutter wire member 20. 
More specifically, and with reference particularly to FIGS. 4 and 1, the 
stationary single-strand cutter wire 20, has a first end 21A that is 
fixedly positioned and a second end 21B that is releasably connected to a 
biasing means 70, such as a spring, FIGS. 4 and 1. The paper-cutting 
assisting means 30 includes means 32 for securing the fixedly positioned 
first end 21A of the cutter wire member 20, and means 34 for securing the 
second end 21B of the cutter wire member 20 to the biasing means 70. As a 
matter of preference and not of limitation, these two securing means 32 
and 34 each include a similarly structural member, e.g., a split side 
sinker. A first split side sinker member 33 of securing means 32 is 
preferably made of lead, and is press-fitted over the first end 21A of the 
cutter wire member 20 which is looped and coiled (e.g., "knotted"). 
Similarly, a second split side sinker member 35 of securing means 34 also 
is preferably made of lead, and is press-fitted over the second end 21B of 
the cutter wire member 20 which also is looped and coiled (e.g., 
"knotted"). 
With reference to FIGS. 1 and 4-6, inclusive, the movable paper-cutting 
assisting means 30 further includes: (a) a frame member 40 (best seen in 
FIG. 5) which comprises a first portion 41 in the shape of an inverted "U" 
and a second portion 42 connected to the first portion 41 in a transverse 
position, with the second portion 42 having a hole 43 therein; (b) a 
pulley member 50 (best seen in FIG. 5) that is connected to, and is 
rotatable within, the first portion 41 of the frame member 40, with this 
pulley member 50 having a grooved rim 51; and, (c) a handle member 60 
(best seen in FIG. 6) that is connected to the transverse second portion 
42 of the frame member 40 by, and at, the hole 43 therein, as is shown in 
FIGS. 4 and 1. 
As a matter of preference and not of limitation, the stationary 
single-strand cutter wire member 20 has a diameter of 0.031 of an inch and 
is made of cold rolled steel; the frame member 40 and the pulley member 50 
of the movable paper-cutting assisting means 30 are made of metal; and, 
the handle member 60 of the movable paper-cutting assisting means 30 is 
made of round brass wire and has a hand heel rest 61. 
MANNER OF OPERATION AND OF USE OF THE PREFERRED EMBODIMENT 
The manner of operation and of use of the preferred embodiment 10 of my 
inventive paper cutter assembly can be easily ascertained by any person of 
ordinary skill in the art from the foregoing description, coupled with 
reference to the Figures of the drawings. 
For others, it is sufficient to say in explanation that, when paper 210 is 
unrolled from the paper roll 200 and is positioned adjacent to (i.e., on 
and along), the displaceable stationary single-strand cutter wire member 
20 as shown in FIG. 1, and that when thereafter the paper-cutting 
assisting means 30 is pulled toward the operator 500 and is moved along 
the displaceable stationary cutter wire member 20 (by grasping the handle 
member 60 with the hand) across the width "W" of the unrolled paper 212, 
then the unrolled paper 212 is cut straightly, cleanly, quickly, and 
safely (i.e., without danger to the operator) from the rest of the roll 
200 of paper by the movement of the displaced wire member 20. 
CONCLUSION 
It is abundantly clear from all of the foregoing, and from the Figures of 
the drawings, that the stated and desired principal object of this 
invention, and related objects thereof, have been achieved. 
It is to be noted that, although there have been described and shown the 
fundamental and unique features of my invention as applied to a preferred 
embodiment thereof, various other embodiments, variations, adaptations, 
substitutions, additions, omissions, and the like may occur to, and can be 
made by, those of ordinary skill in the art, without departing from the 
spirit of my invention.