Improvements in Guillotine Paper Cutting Machines.
Year: 1890

page_text: Date of Application, 17th Oct., 1890.
Complete Specification Left, 13th July, 1891-Accepted, 15th Aug., .1891
PROVISIONAL SPECIFICATION.
Improvements in Guillotine Paper Cutting Machines.
We, HORTON HARRILD Junior of the firm of Harrild and Sons of Fleet Works
Farringdon Street in the City of London Printing Machine Manufacturers & JOHN
FREDERICK BUCKLAND of the same place, Engineer, do hereby declare the nature
of this invention to be as follows:-
:-
This invention has reference to guillotine paper cutting machines of the kind in
which the work is fed from that side of the machine which faces the flat or cutting
edge of the knife and in which the paper or material to be cut is pressed against a
back stop or gauge, that is to say a stop or gauge situated at the opposite side of
the knife.. In cutting or trimming the edges of folded magazines and the like in
which the width of the cut is automatically varied by varying the position of the
stop or gauge so as to make the requisite differentiation in successively cutting the
tail, the fore-edge, and the head of the pile respectively, it sometimes happens that
the operator omits to feed the pile prior to a descent of the knife and the knife
therefore descends without cutting the pile, the result of which is that unless the
operator has noticed the omission and waits until the time for the corresponding
descent comes round, he feeds the wrong edge of the pile for the next descent and
all the magazines in that pile are incorrectly cut or trimmed.
Now the object of this invention is to provide the machine with means and
appliances whereby the operator always has before him an indication of the cut
which is next to take place, whether tail, fore-edge, or head, as the case may be.
With this object we fit in front of the operator in a suitable position to catch his
eye, a plate or wheel carrying at different points of its periphery labels or tickets
bearing the words "tail," "fore-edge" and "head" respectively and we give this
plate or wheel an intermittent motion in unison with the arrangement for bringing
successively into the operative position the stops which vary the width of cut, so
that the particular label for the time being facing the operator shall always
correspond with the next cut to be made.
We effect this preferably by repeating that part of the mechanism which actuates.
the piece on which are fixed the adjustable stops, substituting for this piece the
plate or wheel above mentioned, and connecting, together the two pieces of
mechanism, by a connecting rod, so placed as to give exactly. the same movement
to both. When the intermittent motion of the adjustable stop piece is obtained by
means of a lever working on a cam on one of the rotating shafts of the machine and
connected to a shape fixed at one end, which actuates a lever rotating on a stud in
the side of the machine, which lever, by means of a pawl fixed to it rotates a
ratchet; to which is attached the adjustable stop piece, the amount of rotation
being regulated by means of a quadrant on same stud, it will be readily seen
that the amount of rotation of the adjustable stop piece depends on the movement
of the lever carrying the pawl, so that if this lever be connected to a similar lever
and so place this lever as to repeat the same movement and to rotate the plate or
wheel by means of a similar pawl and ratchet, we shall, on affixing the labels or
tickets in the positions corresponding with the adjustable stops,.be enabled to ensure
the correct visual indication of every cut about to be made.
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Guillotine Paper Cutting Machines.
We, HORTON HARRILD Junior, of the firm of Harrild and Sons of Fleet Works,
Farringdon Street, in the City of London, Printing Machine Manufacturers and
JOHN FREDERICK BUCKLAND of the same place Engineer, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
The invention has reference to guillotine paper cutting machines of the kind in
which the work is fed from that side of the machine which faces the flat or cutting
edge of the knife and in which the paper or material to be cut is pressed against a
stop or gauge. In cutting or trimming the edges of folded magazines and the like
in which the width of the cut is automatically varied by varying the position of
the stop or gauge so as to make the requisite differentiation in successively cutting
the tail, the fore-edge and the head of the pile respectively, it sometimes happens
that the operator omits to feed the pile prior to a descent of the knife and the knife
therefore descends without cutting the pile the result of which is that, unless the
operator has noticed the omission and waits until the time for the corresponding
descent comes round, he feeds the wrong edge of the pile for the next descent and
all the magazines in that pile are incorrectly cut or trimmed.
Now the object of this invention is to provide the machine with means and
appliances whereby the operator always has before him an indication of the cut
which is next to take place, whether tail, fore-edge, or head as the case may be.
With this object we fit in front of the operator, in a suitable position to catch his
eye, a plate or wheel carrying at different points of its periphery, labels or tickets
bearing the words "tail" "fore-edge" and "head" respectively, and we give this
plate or wheel an intermittent motion in unison with the arrangement for bringing
successively into the operative position, the stops which vary the width of cut so
that the particular label for the time being facing the operator shall always
correspond with the next cut to be made.
We effect this preferably by repeating that part of the mechanism which actuates
the piece on which are fixed the adjustable stops, but using in place of this piece
the plate or wheel above mentioned and connecting together the two pieces of
mechanism by a connecting rod so arranged as to give exactly the same movement
to both.
Figure 1 of the accompanying drawings is a front elevation (with part of the
frame broken away) and Figure 2 a section on the line ay of Figure 1 showing so
much of a guillotine paper cutting machine as is necessary to illustrate the manner
in which the invention can be carried into effect.
a is a plate or wheel carrying at different points of its periphery labels or
tickets b, b, b, b, in number equal to the adjustable stops which vary the width of
cut in the manner understood, that is to say, there will be three labels, where three
varying cuts are required for tail, fore-edge, and head respectively, or four labels
where only two cuts for tail and fore-edge respectively are required, the plate a in
this case carrying a repeat of the tail and fore-edge labels. Attached to the plate a
is a ratchet wheel c with which gears a pawl d carried by a lever or arme which
has an intermittent rocking motion imparted to it by a rod f. At each of its
motions in the one direction the lever e by means of the pawl d gives a partial
rotation to the ratchet wheel c and plate a carrying the labels, so that the next
following label is brought into the position of the label marked "head" in Figure 1.
The rod is connected with the mechanism that brings into the operative positions
the stops which vary the width of cut so that the same movement that is given to
this mechanism is also given to the plate a and the labels. is the piece carrying
the adjustable stops h, h, h, h, the number and position of which will correspond
with those of the labels 6, 6, 6, b. Attached to the stop piece g is a ratchet wheel i

page_text: having the same number of teeth as the ratchet wheel c. Engaging with the
ratchet wheel i is a pawl k carried by a lever or arm l. This lever turns on a
stud m in the side of the machine and receives an intermittent rocking motion
from a shape n centred at p and caused to rock by a rod q connected to a lever r
which is worked by a cam's on one of the rotat.ng shafts of the machine. The
rocking motion thus given to the lever imparts an intermittent rotary motion to
the ratchet wheel i and stop piece g bringing the next stop into the operative
position while exactly the same movement is transmitted by the connecting rod f,
lever e, and pawl d to the ratchet wheel c and plate a so that the corresponding
label bis brought into view. The amount of rotation, whether for four or other
number of stops on the periphery of the stop piece g, is regulated, in a manner
understood by means of a slotted quadrant t adjustable by means of a screw and
nut u so as to shorten or lengthen the play of the lever 1.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In guillotine paper cutting machines of the kind herein referred to, an
arrangement substantially as hereinbefore described, comprising a wheel or
equivalent device, bearing labels or indications of the various cuts, the said wheel
or device being caused to move intermittently in unison with the parts that bring
successively into the operative position the stops that vary the width of cut, so that
the particular label or indication which for the time being faces the operator shall
always correspond with the next cut to be made, as set forth.
2. Constructing guillotine paper cutting machines as herein before described and
represented in the accompanying drawings.
Dated this 10th day of July 1891
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.