Iм- PROVEMENTS IN MACHINERY OR APPARATUS FOR CUTTING OR DIVIDING METAL OR OTHER SHEETS OR PLATES
Year: 1861

page_text: LETTERS PATENT to Thomas Coradine, of Glasgow, in the County of
Lanark, North Britain, Iron Plate Roller, for the Invention of "Iм-
PROVEMENTS IN MACHINERY OR APPARATUS FOR CUTTING OR DIVIDING METAL
OR OTHER SHEETS OR PLATES."
Sealed the 12th November 1861, and dated the 1st June 1861.
PROVISIONAL SPECIFICATION left by the said Thomas Coradine at the
Office of the Commissioners of Patents, with his Petition, on the 1st.
June 1861.
I, THOMAS CORADINE, of Glasgow, in the County of Lanark, North Britain,
Iron Plate Roller, do hereby declare the nature of the said Invention of
"IMPROVEMENTS IN MACHINERY OR APPARATUS FOR CUTTING, OR DIVIDING, METAL
OR OTHER SHEETS OR PLATES," to be as follows, that is to say:-
This Invention has for object the cutting or dividing of metal. or other
sheets or plates into parallel strips or narrow portions, such as are required in
many manufacturing operations, and comprises means for cutting two or
more strips at once, and for altering or adjusting the parts so as to give
different widths. ...
A machine embodying one modification of the improvements comprises a
pair of massive upright standards firmly connected together, and containing

page_text: bearings for a pair of horizontal shafts arranged slightly apart vertically.
The shafts are provided with two or more pairs of steel cutting or shearing
rings, which are adjusted or held in position by screw nuts fitted upon the
shafts screwed to receive them. The shafts are geared together, and are
driven in any convenient way, their action being to draw in between them
the sheet or plate presented to them, whilst the latter is divided by the cutting
rings as it passes through. The cutting rings are keyed to the shafts by
tongues entering keyways cut longitudinally through the screw threads of
the shafts, and which do not interfere with the longitudinal adjustment of the
nuts. A lateral guide is provided, against which one side edge of the sheet or
plate is laid, and which defines the width of the first cut, the widths of the
other cuts being determined by the distances apart of the respective pairs of
cutting rings.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Coradine in the Great Seal, Patent Office on the
29th November 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
CORADINE, of Glasgow, in the County of Lanark, North Britain, Iron Plate
Roller, send greeting.
T
WHEREAS Her most Excellent Majesty Queen Victoria, by Iler Letters
Patent, bearing date the First day of June, in the year of our Lord One
thousand eight hundred and sixty-one, in the twenty-fourth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Thomas Coradine, Her special licence that I, the said Thomas Coradine,
my executors, administrators, and assigns, or such others as I, the said
Thomas Coradine, my executors, administrators,' and assigns, should at any
time agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR CUTTING OR DIVIDING METAL OR OTHER SHEETS,"
upon the condition (amongst others) that I, the said Thomas Coradinė,
my executors or administrators, by an instrument in writing under my, ότ
their, or one of their bands and seals, should particularly describe and ascer-
tain the nature of the said Invention, and in what mauner the same was to
be performed, and cause the same to be filed in the Great Seal Patent

page_text: Office within six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said Thomas Coradine, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement in writing, reference being had to the accompanying Drawings, and
to the letters and figures marked thereon, that is to say :-
My said Invention has for object the cutting or dividing of metal or other
sheets or plates into parallel strips or narrow portions, such as are required in
many manufacturing operations, and comprises means for cutting two or more
strips at once, and for altering or adjusting the parts so as to give different
widths.
-
And in order that my said Invention may be properly understood and
carried into effect, I have hereunto appended a Sheet of explanatory Drawings,
upon which is represented a machine for dividing metal sheets and embodying
a modification of my improvements.
Figure 1 is a side elevation of the machine, partly in section; Figure 2 is
a transverse vertical section; and Figure 3 is a face view of one of the cutting
rings detached.
The framing of the machine consists of a pair of massive upright standards
or housings A, firmly connected together by tie rods B, and shaped to receive
bearings C, for a pair of horizontal shafts D, arranged slightly apart vertically.
The shafts D are provided with two or more pairs of cutting or shearing
rings E, which are adjusted and held in position on the shafts by screw nuts F
fitted upon the shafts, which are formed with screw threads to receive them.
The shafts D are geared together by means of the toothed wheels G, and are
driven in any convenient way. The cutting rings E, which may be en-
tirely of steel, or of iron with a steel or hardened cutting edge or rim,
are keyed to the shafts D by tongues e (Figure 3), which enter keyways d,
cut longitudinally through the screw threads of the shafts, and which do not
interfere with the longitudinal adjustment of the nuts F. This contrivance
prevents the cutting rings E from tending to unscrew the nuts F; but in
order that these nuts may not be shaken loose by vibration or jarring, they are
held in position by pinching screws f, tapped radially through them. The
other holes shown in the nuts are for inserting levers or turning instruments to
adjust the nuts by. The cutting rings E are by preference formed with
square or nearly square cutting edges as shown, and they are so disposed.in
the machine as to slightly pass cach others edges, the overlapping parts being
in as close contact as possible. When the shafts D are revolving together, and

page_text: the edge of a sheet is presented between the cutting rings E, the action of these
is to draw the sheet through, cutting or splitting it up as it proceeds. At each
cut one ring forces one edge of the cut upwards, whilst the other ring forces the
other edge of the cut downwards; and it is important to observe that in order to
prevent twisting of the strips, the pairs of cutting rings must be arranged alter-
nately on opposite sides of each other as shown, this causing the sides of each
strip to be pressed either both upwards or both downwards. If a metal or other
sheet is to be cut into parallel strips, it is necessary to cut one of its edges
straight in the ordinary way, and the sheet is entered into the machine
with this straight edge against a guide H fixed against one of the standards or
housings A. In addition to this edge guide II, horizontal guides I are carried
by rods J, extending from one standard or housing to the other, and are
applied at each pair of cutting rings E for the purpose of directing the sheet hori-
zontally in between the shafts, and to prevent the strips from bending or curling
round the shafts on the delivery side after being cut. At the end of the machine
at which the edge guide H is fixed there are fixed on the shafts D a pair of
stepped rings K, which serve as stops in adjusting the nearest pair of cutting
rings; but when two or more pairs of cutting rings are adjusted in alter-
nately reversed positions as described, they act as stops to each other. The
_machine_is_represented as fitted with three pairs of cutting rings, whereby..
a sheet can be simultaneously cut_up_into_three_separate_strips.;_the_num-
ber of pairs of cutting rings may, however, obviously be modified to suit
requirements, and similar or dissimilar widths may be cut at the same time,
the cutting rings being casily adjusted to the sizes wanted.
Metal sheets of various thicknesses may be cut by this machine, and being
made by it very equal in width and with very uniform square edges, the
stripes are peculiarly suitable for various purposes, such as the manufacture of
metal tubes. A lighter modification of the machine may also be used with
advantage for cutting card, pasteboard, and such like materials into narrow
strips for jacquard cards, or for tickets, for example.
Having thus particularly described my said Invention, and the manner in
which the same is or may by used or carried into effect, I have to state that I
do not restrict myself to the precise details herein described and delineated, "
and that I do not claim to have invented every separate detail herein
described and delineated, but, that what I consider to be novel and original, and s
claim as the Invention secured to me by the herein-before in part recited
Letters Patent is,
First, generally the constructing of machinery or apparatus for cutting
or dividing nietal or other sheets or plates substantially as herein-before described.