IMPROVEMENTS IN MACHINERY FOR PUNCHING, CUTTING, AND PRESSING METALS AND OTHER MATERIALS
Year: 1862

page_text: LETTERS PATENT to Thomas Cook, of Coburg Road, Old Kent Road, in
the County of Surrey, Machinist, for the Invention of "IMPROVEMENTS IN
MACHINERY FOR PUNCHING, CUTTING, AND PRESSING METALS AND OTHER
MATERIALS."
Sealed the 18th July 1862, and dated the 1st February 1862.
PROVISIONAL SPECIFICATION left by the said Thomas Cook at the Office
of the Commissioners of Patents, with his Petition, on the 1st February
1862.
I, THOMAS COOK, of Coburg Road, Old Kent Road, in the. County
of Surrey, Machinist, do hereby declare the nature of the Invention for
"IMPROVEMENTS IN MACHINERY FOR PUNCHING, CUTTING, AND PRESSING METALS
AND OTHER MATERIALS," to be as follows:-
This Invention has for its object improvements in machinery for punching,
cutting, and pressing metals and other materials. The frame of the machine,
so far as it is made with two jaws, the one carrying the hollow or bed die, and
the other the punch or forcer, is similar to those heretofore employed, and the
improvements consist in constructing and combining the parts for actuating
the punch or forcing die in the following manner:-The stem or holder of the
punch or forcing die moves up and down, and is properly guided in its move-

page_text: ment; to the upper end of the stem or holder a sector or segment of a circle
or of an eccentric is connected by a pivot or axis on which the segment can
move freely; above this segment there is a similar sector or segment of a
circle or of an eccentric, which moves on an axis or pivot carried by the
framing. In order to actuate the punch or forcing die a screw is used to force
a wedge between the two sectors when the contiguous surfaces of the two
sectors are concentric with their axes, or a parallel bar when the two contiguous
surfaces of the sectors are eccentric to their axes. Provision is made for
bringing back the punch or forcing die after it has been caused to act.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Cook in the Great Seal Patent Office on the 1st
August 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
Cook, of Coburg Road, Old Kent Road, in the County of Surrey, Machinist,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the First day of February, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Thomas Cook, Her special licence that I, the said Thomas Cook, my
executors, administrators, and assigns, or such others as I, the said Thomas
Cook, 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 FOR PUNCHING, CUTTING, AND PRESSING METALS AND OTHER MATERIALS,"
upon the condition (amongst others) that I, the said Thomas Cook, my
executors or administrators, by an instrument.in writing under my, or their,
or one of their hands and seals, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was to
be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date of
the said Letters Patent.
NOW KNOW YE, that I, the said Thomas Cook, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-

page_text: formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say :-
This Invention has for its object improvements in machinery for punching,
cutting, and pressing metals and other materials. The frame of the machine
so far as it is made with two jaws, the one carrying the hollow or bed die and
the other the punch or forcer, is similar to those heretofore employed, and
the improvements consist in constructing and combining the parts for actuating
the punch or forcing die in the following manner :-The stem or holder of the
punch or forcing die moves up and down, and is properly guided in its move-
ment; to the upper end of the stem or holder a sector or segment of a circle
or of an excentric is connected by a pivot or axis on which the segment can
move freely; above this segment there is a similar sector or segment of a circle
or of an excentric which moves on an axis or pivot carried by the framing.
In order to actuate the punch or forcing die a screw is used to force a wedge
between the two sectors when the contiguous surfaces of the two sectors are
concentric with their axes, or a parallel bar when the two contiguous surfaces
of the sectors are excentric to their axes. Provision is made for bringing back
the punch or forcing die after it has been caused to act.
Having thus stated the nature of my said Invention, I will proceed more
fully to describe the manner of performing the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a side elevation partly in section of a machine constructed
or combined according to my Invention, and Figure 2 shows a front elevation
thereof, partly in section. a, a, is the frame of the machine, having two jaws
a¹ and a³. The jaw a¹ carries the hollow or bed die 6, and the jaw a³ carries
the punch or cutting die c. The die c is attached to the lower end of the stem
or holder d, which is guided in its upward and downward motion. The upper
end of the stem or holder d is attached by an axis e¹ to the sector or segment e.
Above the sector or segment e is another sector or segment f, which turns on
an axis f¹. These sectors or segments move freely between the front and back
plates of the framing, and are guided thereby; 9 is a bar (with parallel
surfaces at the top and bottom), which works between the two excentric sectors
or segments e and f. I would, however, remark that if the sectors e and f
are segments of circles in place of the excentrics e and f, then in place of a
bar g with two parallel surfaces a wedge is employed. The bar g has con-
nected to it a screw g¹ and cross bar g³, as shewn in the Drawings. h is a
tube, having at its outer end a square h¹ formed thereon, and at its inner end
there is formed a nut or female screw h³. The tube h works through a hollow

page_text: bearing i, which turns on necks or pivots in the bearings at the ends of two
straps or plates j, one on each side of the screw 9¹. The inner ends of the
plates are attached to the framing of the machine. It will be readily under-
stood that by turning the tube h motion will be given to the bar g and to the
punch or die c, which will be raised, or lowered according to the direction in
which the tube h is turned. The sectors or segments e, f, are connected by
means of two rods k, the ends of which work in grooves k¹ formed in the back
and front surfaces of the sectors or segments e and f; hence when the punch
or die c has made its cut and is required to be moved back, the rods k will, as
the bar g is moved back, cause the segment or sector e to be raised, and with
it the punch c. The axis of the upper sector or segment f is raised or lowered
by the screw 7, which turns freely on
axis fis attached. The upper end
to receive a key or handle. In the arrangement shewn the sectors or
segments e, f, are arranged to move on axes which are at right angles to the
front and back plates a, a, of the framing of the machine, which is, in
consequence of the barg and screw g¹ being applied on one side of the machine,
but in some cases it is found desirable that the bar or wedge g should be
arranged to move in a direction from and to the front of the machine, and to
have the screw g₁ at the back of the machine, in which cases in place of the
framing a being made with a front and back plate, as shewn in the Drawings,
the framing is made with two side plates between which the sectors are
arranged to move, in place of between a back and front plate, as shewn in the
Drawings. n, n, are two stops for preventing the metal which is being
punched or cut rising with the punch or die c.
the stem m, to which the bearing of the
of the screw 7 is formed with a square
Having thus described the nature of my Invention, and the manner of
performing the same, I would have it understood that I make no claim to any
of the mechanical parts separately; but what I claim is the combined
mechanism herein described.
In witness whereof, I, the said Thomas Cook, have hereunto set my
hand and seal, this Twenty-sixth day of July, in the year of our
Lord One thousand eight hundred and sixty-two.
THOS. COOK. (L.S.)