Improvements in Guillotine Paper Cutting Machines.
Year: 1885

page_text: Improvements in Guillotine Paper Cutting Machines.
HENRY PATTMAN TRUEMAN and JOHN GEORGE NEW of 78 Parade Birmingham
in the county of Warwick, Engineers and Machinists, do hereby declare the nature
of our invention for IMPROVEMENTS IN GUILLOTINE PAPER CUTTING MACHINES
to be as follows:-
These improvements consist first of an arrangement for operating both the
cutting and clamping arrangements, by means of a single vertical screw and nut,
instead of using two seperate devices as heretofore. This vertical screw is mounted
to revolve freely in the centre portion of the framing and immediately behind the
knife bar, end way motion is prevented by means of collars on the screw itself.
A parallel cross bar extending across the framework from side to side is provided
with a nut, which engages with the aforesaid vertical screw in such a manner
that the cross bar can be moved up and down by reversing the motion of the
vertical screw. The knife bar is placed between vertical guides immediately in
front of this cross bar and screw, and motion is communicated to the knife bar
by means of projecting pieces extending from the said knife bar and which pieces
engage with the cross bar and its screw nut. The clamping arrangement consists
of a horizontal plate extending from side to side of the frame-work and placed
immediately underneath the aforesaid cross bar and screw nut, from the ends of
this plate depend two rods, at the lower end of which rods are spiral springs, or
weights, The said rods are extended upwards and by means of collars engage
with the cross-bar and nut on its upward movement, but the plate is free to remain
at rest on the top of the material to be cut, while the cross bar with its nut and
connections to the knife bar and knife continue their descent and complete the
operation.
"
The second point in these improvements is the adoption of means by which the
aforesaid horizontal clamping plate can be rigidly connected to the horizontal bar
and nut, and so made to partake of the motion of the same. This is effected by
providing two nuts on the aforesaid rods, which are placed imediately under the
said horizontal bar and nut, so that the aforesaid collars above the bar and the nuts
below, form a rigid connection as herein described.

page_text: The third point in these improvements is the construction of the frame-work as
follows: The vertical uprights of the frame are formed of flat plates of wrought
iron, the said plates are arranged in pairs, and kept at the proper distance apart by
means of distance pieces, The knife bar is fitted to slide between these uprights,
The frame-work is completed by bolts, a cast iron cross-head at the top and suitable
cast iron legs at the bottom. By this means we effect a considerable saving in
material and lessen the cost of construction. The vertical screw may be dispensed
with in some cases, and the knife bar actuated by any ordinary means, the other
parts of the apparatus remaining as described.

page_text: Improvements in Guillotine Paper Cutting Machines.
7
HENRY PATTMAN TRUEMAN and JOHN GEORGE NEW of 78 Parade Birmingham
in the county of Warwick, Engineers and Machinists do hereby declare the nature
of our invention for IMPROVEMENTS IN GUILLOTINE PAPER CUTTING MACHINES
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:―
These improvements consist first of an arrangement for operating both the
cutting and clamping arrangements, by means of a single vertical screw and nut
instead of using two separate devices as heretofore. This vertical screw is mounted
to revolve freely in the centre portion of the framing and immediately behind the
knife bar, end way motion is prevented by means of collars on the screw itself.
A parallel cross bar extending across the framework from side to side is provided
with a nut, which engages with the aforesaid vertical screw in such a manner
that the cross bar can be moved up and down by reversing the motion of the
vertical screw. The knife bar is placed between vertical guides immediately in
front of this cross bar and screw, and motion is communicated to the knife bar by
means of projecting pieces extending from the said knife bar and which pieces
engage with the cross bar and its screw nut. The clamping arrangement consists
of a horizontal plate extending from side to side of the framework, and placed
immediately underneath the aforesaid cross bar and screw nut, from the ends of
this plate depend two rods, at the lower end of which rods are spiral springs or
weights. The said rods are extended upwards, and by means of collars engage
with the cross bar and nut on its upward movement, but the plate is free to remain
at rest on the top of the material to be cut, while the cross bar with its nut and
connections to the knife bar and knife continue their descent and complete the
operation.
The second point in these improvements is the adoption of means by which the
aforesaid horizontal clamping plate can be rigidly connected to the horizontal bar
and nut, and so made to partake of the motion of the same. This is effected by
providing two nuts on the aforesaid rods, which are placed immediately under the
said horizontal bar and nut so that the aforesaid collars above the bar and the nuts
below form a rigid connection as herein described.
The third point in these improvements is the construction of the frame work as
follows:-The vertical uprights of the frame are formed of flat plates of wrought
iron, the said plates are arranged in pairs and kept at the proper distance apart by
means of distance pieces. The knife bar is fitted to slide between these uprights.
The frame work is completed by bolting a cast iron head at the top, and suitable
cast iron legs at the bottom. By these means we effect a considerable saving in
material and lessen the cost of construction. The vertical screw may be dispensed
with in some cases, and the knife bar actuated by any ordinary means, the other
parts of the apparatus remaining as described. That our invention may be fully
understood and carried into operation we will describe the accompanying sheet of
drawings made to a scale of about 1 inch to a foot and marked with letters of
reference.

page_text: Fig. 1 is an end elevation (partly in section) and Fig. 2 a back elevation of so
much of our cutting machine as is required to shew our improvements, similar
letters indicate the same parts on Fig. 1. and Fig. 2.
A. is the vertical screw. B. the nut, working on A. C the knife bar. D the
cross bar. 1. 2. 3. 4. the projecting pins carrying rollers engaging with cross bar D.
E the clamping bar F. F. the vertical rods carrying the springs G. G. H. H. are
the two nuts for rigidly connecting the bars D and E. I. I. the flat plates forming
the frame work of the machine. The working of the machine is as follows:-
A pile of material to be cut being placed under the clamp E. the hand wheel
connected to the screw A is revolved so as to cause the nut B and cross bar D to
descend. The clamp E also descends and continues to do so till it rests upon the
pile of material at which moment the pressure of the springs G. G. is communicated
to the pile by means of the rods F. F. to which E is rigidly connected. The cross
bar D however continues to descend in a vertical line, the ends of D sliding on the
aforesaid rods F. F. The knife bar C is also caused to move isochronously with D.
in a vertical plane by means of the pins and rollers 1. 2. 3. 4. The knife bar C is
also caused to move diagonally by means of rollers J. J..working in the slots K. K.
of the knife bar C. When the knife has passed through the material to be cut,
the motion of the hand wheel and screw is reversed and C is made to ascend.
D engages with the upper collars on the rods F. F. and E is lifted from the pile of
paper, the pressure caused by the compression of the springs G. G. is also taken
up and sustained by the cross bar D. through the medium of the upper collars on
the rods F. F.
When it is desired to use the machine for pressing on punches for cutting labels
and such like purposes, the clamp E is rigidly connected to the cross bar D. by
raising the loose collars H. H on the rods F. F. and screwing them up under the
cross bar D.
In some cases we use a rigid bar to connect D and E in others a slot
and key is used under the collar instead of the screw thread. When D and E are
thus connected E is moved up and down in a vertical line by the screw A and
nut B. and enables the machine to be used for pressing or punching vertically.
The construction of the frame work is clearly shewn in the drawings, where I. I
are the flat plates. L. the feet M the crosshead and N the distance pieces.
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 :-
First. Operating the cutting and clamping arrangements of cutting machines by
means of a single vertical screw and nut, instead of using separate devices as
heretofore.
Second. Connecting the clamping bar rigidly to the knife bar of cutting machines
as and for the purpose described.
Third. The use of flat plates of wrought iron in combination with cast iron
crosshead, feet, and distance pieces, forming the framework of a cutting machine,
as and for the purpose described.
HENRY PATTMAN TRUEMAN.
JOHN GEORGE NEW.