Cutting Machines.
Year: 1887

page_text: Date of Application, 31st Mar., 1887
Complete Left, 29th Dec., 1887
Complete Accepted, 3rd Feb., 1888
Cutting Machines.
We, HERBERT JAMES SALMON, of Blackfriars Bridge, Manchester, in the County
of Lancaster, Printer's Machinist, JOHN CAPPER, and WILLIAM HENRY DUFFETT, of
the same place, Printer's Machinists, do hereby declare the nature of the said
invention to be as follows :-
In paper cutting machines, as hitherto constructed, the guage at the back has been
moved to and fro by a screw rotated by hand.
This takes time and is laborious work, especially in large machines, and our
invention consists (where the machines are driven by power) in gearing by wheels
and shafts, or ropes, belts, pulleys and shafts, the screw shaft for the guage at the
back, with a pulley or part constantly rotated from the motive power employed for
driving the machine, the gearing by friction clutches, or other suitable mechanism,
being arranged so that it can be readily brought into and out of action, and so as
to rotate the screw and move the guage in either direction, and so as to stop by
selfacting means at either extreme of the guages movement.
Our invention also relates to arrangements for showing more conveniently than
hitherto to a workman in front of the machine, the distance, say in inches and
fractions, the face of the back guage is from the cutting knife, and this part of our
invention consists in arranging an endless thin steel band, or jointed chain, or endless
tape on one side of the machine passing over suitable pulleys, one pulley in bearings
at the front and the other at the back of the machine.
One side of this endless band, tape, or chain, is connected with the guage so as to
move to and fro with it.
The face of this band, tape or chain, is marked in inches or fractions, or to any
other required divisions, and there is a pointer at the front of the machine which
shows clearly to the operative at what distance the guage is from the knife. The
tape, band or chain, need not be endless but may have one end attached to the guage,
and may then be brought over a pulley at the front of the machine, and be kept
stretched by a weight or weight pulley attached to or suspended upon it.

page_text: Our invention also relates to arrangements for keeping the paper being cut against
the face of the guage when it is moving back from the knife as well as when moving
towards it, and consists in arranging two or more endless bands or tapes on pulleys,
one set at the back of the table and the other on the table near the knife, the upper
side of the endless bands resting upon and moving over the surface of the table.
The paper to be cut is placed over these endless bands, which being connected with
the guage move therewith and keep the paper close against the guage.
In some cases the bands or tapes or other equivalents, such as reciprocating bars or
plates, have or may have motion imparted to them tending to carry or feed the paper
to be operated upon against the guage.
Dated this Thistinth day of March 1887
PETER J. LIVSEY,
Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in or Applicable to Paper and Mill Board
Cutting Machines.
We HERBERT JAMES SALMON of Blackfriars Bridge, Manchester, in the County
of Lancaster, Printers Machinist, JOHN CAPPER, and WILLIAM HENRY DUFFETT, of
the same place, Printers Machinists, 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:—
In paper cutting machines as hitherto constructed the guage at the back has been
moved to and fro by a screw rotated by hand.
This takes time and is laborious work especially in large machines and our invention
consists (where the machines are driven by power) in gearing by wheels and shafts or
ropes, belts pulleys and shafts the screw shaft for the guage at the back with a pulley
or part constantly rotated from the motive power employed for driving the machine
when to be worked; the gearing, by friction clutches or other suitable mechanism,
being arranged so that it can be readily brought into and out of action and so as to
rotate the screw and move the guage in either direction and so as to stop by selfacting
means, at either extreme of the guages movement.
Our invention also relates to arrangements for showing more conveniently than
hitherto to a workman in front of the machine the distance say in inches and fractions
the face of the back guage is from the cutting knife and this part of our invention
consists in arranging an endless thin steel band or jointed chain or endless tape on
one side of the machine passing over suitable pulleys, one pulley in bearings at the
front and the other at the back of the machine.
One side of this endless band, tape or chain is connected with the guage so as to
inove to and fro with it.
The face of this band, tape or chain is marked in inches or fractions, or to any
other required divisions, and there is a pointer at the front of the machine which
shows clearly to the operative at what distance the guage is from the knife. The tape,
band or chain, need not be endless but may have one end attached to the guage and
may then be brought over a pulley at the front of the machine and be kept stretched
by a weight attached to or suspended upon it or the weight pulley.
Our invention also relates to arrangements for keeping the paper being cut against
the face of the guage when it is moving back from the knife as well as when moving
towards it, and consists in arranging two or more endless bands or tapes on pulleys,
one set at the back of the table and the other on the table near the knife, the upper
side of the endless bands resting upon, and moving over the surface of the table.
The paper to be cut is placed over these endless bands which being connected with
the guage move therewith and keep the paper close against the guage.
In some cases the bands or tapes or other equivalents have or may have motion
imparted to them tending to carry or feed the paper to be operated upon; against
the guage.
Fig. 1 represents in perspective a front view of most of the important, parts

page_text: of a paper and mill-board cutting machine illustrating the mode of applying our
improvements.
Fig. 2 is a plan section above the table on an enlarged scale.
Fig. 3 is a partial side elevation.
Fig. 4 is a section of the driving pulleys and connected parts in the lengthway of
the driving shaft.
Fig. 5 is an inside view of one of the driving pulleys, with the driving plate
removed.
In fig. 1, a are the side frames; b the table, c the guage on the table, d the cutting
knife beam, and d¹ the knife, e the main driving shaft, and the driving belt
pulleys, g the fly wheel, fly brake, and handle wheel, c' is the shaft for the screw
actuating the guage c.
In fig. 2, a is part of the framing and 6 the table partly broken away to show the
mechanism below, c is the guage, c the shaft and screw for actuating it, fand f¹ are
the pulleys for the driving belt.
In fig. 3, a is part of the side framing, the table, c the guage, c' the screw shaft
for guage, e the main driving shaft, and h the brake pulley and handle wheel.
The front end of the screw shaft c has a pinion upon it which
with a
carrier pinion on a stud in a bracket a', and a pinion on the boss of a hand wheel c³
rotating on a stud in the bracket a secured to the underside of the table b..
gears
By this hand wheel c³ the guage c is adjusted or moved to and from the knife d¹.
Upon the shaft c¹ two bevel wheels et are placed to slide and rotate with the shaft
and slide to and fro on a fixed key, the two bevel wheels being connected by a boss
(so as to move together) having a groove in it for a fork in one arm co of a bell crank
lever having its fulcrum c on a stud secured in the underside of the table b.
To the forked arm c of the bell crank lever one end of a rod i is jointed, the other
end sliding freely through a hole in a bracket at the back end of the table b.
Upon the rod i two fingers and 2 are secured by set screws.
When the guage c comes to one end of its movement in either direction the
projection or bracket ex from the underside of the guage c which carries the screw
nut through which the screw c¹ works comes against one of the fingers or and
moves the forked lever c and this will cause one or the other of the two bevel wheels c
to be moved out of gear with the driving bevel, should one of them be in gear with it
when the guage carrives at either extreme of its movement.
The long arm c' of the bell crank lever comes to the front of the machine, and it is
held between the ends of two bolts c sliding in holes in studs secured in the under-
side of the table-Each bolt 8 has a helical spring upon it as shown to force the head
of the sliding bolt against the side of the arm c and they so operate that when the
lever c is free, their joint action is to hold the two bevels in a middle position out of
gear with the driving bevel, therefore the screw shaft is only actuated by the driving
power when the arm c' is held on one or the other side of its central position.
The driving bevel j is on the end of a cross shaft j in suitable bearings, on the side
framing at one end, and on a bracket under the table at the other end.
The outer end of the cross shaft has a spur wheel upon it that gears with one;
on the side of a pulley upon which the driving belt works when the machine is to be
driven by power, this pulley has a long boss loose on the main driving shaft e upon
which long boss the fly wheel g is secured.
There is another pulley loose on the long boss of the pulley f, which loose
pulley is that upon which the driving belt works, when the machine is not to be
.driven by power.
On the side of the pulley a cylindrical cavity is formed to fit a ring f' with a
space to receive the fulcrum ends of two half ring formed levers as shown:
in fig. 5.
On a disc plate fast on the main driving shaft e there is a projection f³ which
comes between two projections f" on the ring so that the latter and the half ring
levers are connected and will rotate together or remain stationary with the
disc f

page_text: The ring does not fit close to the cylindrical cavity when the parts are in the
position shown by fig. 4, consequently the pulley can be rotated without carrying
the ring round with it, but when a pink carried in a collar k¹ which can slide to
and fro on the main shaft e is forced in through a hole in the disc" to come between
and separate the two ends of the half ring levers they then act upon each other to ex-
pand the ring until its exterior comes and binds against the interior of the cylindrical
cavity on the pulley and the frictional adhesion thus obtained carries the main
shaft e round with the pulley . The collar on the main shafte has a groove for
one end of a forked lever having its fulcrum ³ on a bracket secured to the
framing, the other end of the lever has a slot that is connected by a pin with a
rod sliding in suitable bearings on the side framing and under the table b.
rod has a spring & connected with it, which when allowed moves the rod
the ring into frictional contact with the pulley when the machine is to be driven by
power.
This
to bring
When this rod is moved to stop the driving it is held against the action of the
spring by a part & sliding vertically in guides on the framing, which part ke is
actuated by a lever handle k having its fulcrum on a stud in the framing at ka.
The part sliding in guides when lowered (the lever handle k² being pulled
down by a spring) comes in the way of a projection on the end of the rod k and
prevents it from being moved by the spring k until liberated by depressing the
handle 7.
'
There is a handle k in front of the machine and connecting shaft having an arm
to act upon the rod * when the cut of the machine is to he stopped and this rod k* is
also acted upon by a cam and connected lever which is a known arrangement for
stopping the movement of the knife when it has arrived at its highest position after
each cut.
To the end of a stud projecting from the end of the guage c one end of a thin
flexible steel band is secured, which passes along side the machine and over a
pulley on a stud in the edge of the table b at the front of the machine, then
backwards, the other end of the band being secured to the periphery of a pulley 1³
free on a stud in the side of the framing.
The pulley
13 has a small grooved pulley secured to or formed with it to which
one end of a rope or chain is secured, the other end having a weight * attached. to
keep the band stretched tight as it moves to and fro by every change in the position
of the guage c.
The upper face of this thin steel ribbon is divided into inches and parts of an
inch or other divisions indicating measures of length. When the guage c is at its
nearest position to the knife say three inches, then the pointer le (fig. 2) secured to
the edge of the table b, points and is opposite the division representing three inches
and so on for each position in which the guago c is placed.
When the guage is in its nearest position to the knife (say three inches from it)
the first or zero division will be three inches from the pointer 16 between the zero
division of the band and the stud 1, the ribbon ¹ need not be divided.
An endless band may be used working over a pulley 13 in front and one upon a
stud in a slide or on the arm of a bell crank lever having its fulcrum on the
framing the slide or horizontal arm of the bell crank having a spring or weight
acting to keep the endless band stretched.
One side of this endless band is attached to a stud from the guage similar to the
stud to cause it to move one side of the endless band to and fro with the guage.
Another of our improvements is illustrated by figs. 2 and 3.
One end of a tape m is secured to the back of the guage c and then passes over a
pulley m² on a rod or shaft in bearings at the back of the table b it then passes under
the table to a pulley m² in bearings in a slot in the table then over the surface of the
table, the other end of the tape being secured to the under side of the guage c
consequently when the latter moves the tape m² moves with it, and the paper to be
cut which is placed on the table, rests upon the tape and is moved to and fro and kept

page_text: in contact with the guage c. Two or more tapes m² (two are shown in fig. 2) arranged
as above described are or may be used.
In some cases, the tapes m² are or may be endless and are in this case detached
from the guage c and pass in slight grooves in the underside of it which grooves
allow them to pass freely.
The shaft having the pulleys for the tapes at the back of the table b is arranged
to be rotated by an endless driving band working say on a grooved pulley on the
shaft and another on the end of the shaft at the back of the table in such direction
as to move the tapes on the upper side of the table towards the guage c thus tending
also to move the paper placed over the tapes against the guage.
The tapes will be held by the pressure put upon the paper when being cut and at
that time the driving band will slip upon the grooved pulleys.
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed we declare that what we claim is.
1. The driving of the guage screw shaft in either direction by connecting it with
the mechanism, driving the machine by power, substantially as herein before described
and illustrated by the drawings.
2. The combination and arrangement of mechanism for rotating the guage screw
shaft in either direction substantially as hereinbefore described and illustrated by the
drawings.
3. The arrangement of a steel ribbon or its equivalent for showing, at the front of
the machine, the space between the cutting knife (d) and the face of the guage (c)
substantially as hereinbefore described and illustrated by the drawings.
4. The combination and arrangement of mechanism with the guage (c), for
showing at the front of the machine, the distance of the guage from the knife (d)
substantially as hereinbefore described and illustrated by the drawings.
5. The combination of tapes (m) with the guage (c), or so as to propel the paper
towards the guage (c), substantially, as and for the purpose hereinbefore described
and illustrated by the drawings.
Dated this 28th day of December 1887.