IMPROVEMENTS IN DIES FOR CUTTING AND CUPPING OR DRAWING METALS AND OTHER MATERIALS
Year: 1873

page_text: ETTERS PATENT to William Edward Newton, of the Office for
Patents, 66, Chancery Lane, in the County of Middlesex, Civil
Engineer, for the Invention of "IMPROVEMENTS IN DIES FOR CUTTING
AND CUPPING OR DRAWING METALS AND OTHER MATERIALS."-A commu-
nication from abroad by Charles Franklin Wilson, of Northbridge,
in the State of Massachusetts, and Sam Houston Miller, and
Jesse Edward Folk, both of Brooklyn, in the State of New York,
United States of America.
PROVISIONAL SPECIFICATION left by the said William Edward
Newton at the Office of the Commissioners of Patents, with his
Petition, on the 1st January 1873.
I, WILLIAM EDWARD NEWTON, of the Office for Patents, 66, Chancery
Lane, in the County of Middlesex, Civil Engineer, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN DIES FOR CUTTING
AND CUPPING OR DRAWING METALS OR OTHER MATERIALS," to be as follows:-

page_text: material in the sheet, and afterwards giving it a cup shape by indenting
and drawing out such blank. Ordinarily or when a deeply cupped
article is required it is usual to first stamp out the blank into circular
form by one pair of dics, and subsequently to give it the required cupped
shape by another pair of dics of different construction or shape from the
first pair of dies.
To cup the blank even by two sets of dies operating independently of
each other and successively as above described, it is extremely difficult
or impossible without making incisions in the margin of the blank, to
avoid puckering the material at such part owing to the necessary and
unequal contraction of the material in a circular direction to give the
blank a cup shape and to the expansion of the material at other parts.
This not only adds to the labor of drawing out the blank but affects the
smooth or regular finish of the cupped article. Especially is this true
of articles made from sheet metal. This Invention has for its object
the production of various cupped articles from the sheet by one pair of
dies and at one operation. It has also for its object the cupping of the
blank, whether formed at the same time and by the same, operation, or
previously without making incisions in the margin of the blank.
The Invention consists in a combination of a combined male cutting
and female cupping dic with a combined female cutting and male
cupping die, constructed to cut out the blank and to cup it as required
without removal from the dies.
The Invention also consists in a combination with a male cupping dic
and a female cupping one of a clamping ring or follower supported by:
a spring and arranged around the male cupping dic, and between which
and the female cupping die the marginal portion of the blank is clamped
during the operation of cupping, and is gradually drawn out from
between such clamping portions as the blank is drawn to form the cup
without risk of puckering. These two leading features or parts are also
used in combination.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Edward Newton in the Great Seal Patent
Office on the 26th June 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
EDWARD NEWTON, of the Office for Patents, 66, Chancery Lane, in the
County of Middlesex, Civil Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the First day of January, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Edward Newton, Her special
licence that I, the said William Edward Newton, my executors, admini-
strators, and assigns, or such others as I, the said William Edward Newton,
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, exer-
cise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS
IN DIES FOR CUTTING AND CUPPING OR DRAWING METALS AND OTHER MATERIALS,"
being a communication to me from abroad by Charles Franklin Wilson,
of Northbridge, in the State of Massachusetts, and Sam Houston Miller,
and Jesse Edward Folk, both of Brooklyn, in the State of New York,
United States of America, upon the condition (amongst others) that
I, the said William Edward Newton, 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 William Edward Newton, do
hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement, reference being had to the Drawing
hereunto annexed, and to the letters and figures marked thereon (that is
to say):

page_text: This Invention relates to the manufacture of various cupped articles
by cutting and stamping out a blank from metal, pasteboard, or other
material in the sheet, and afterwards giving it a cup shape by indenting
and drawing out the blank.
The Invention consists in certain arrangements of dies with a
clamping ring or follower and a spring for operating the follower.
By means of this Invention a stout or deeply cupped article may be
very effectually produced (without puckering) not only by the same dies
used to cut out the blank and at the same operation, but so that a single
die action or motion (such as is obtainable from a single reciprocating
plunger of an ordinary power or other suitable press) will answer to com-
plete the work.
In the accompanying Drawing Figure 1 represents a longitudinal
section of a pair of dies with a spring borne clamping ring or follower
combined, all constructed in accordance with the Invention, and shewn as
having cut a blank from the sheet and as commencing to cut the same;
Fig. 2 is a similar view to Fig. 1, but shewing the parts as about com-
pleting the cupping operation; Fig. 3 is a face view of the blank as cut
or stamped from the sheet; and Fig. 4 is a partly broken side view of
the cupped article as produced by the dies.
A is a combined male cutting and female cupping dic, and B a female
cutting die, and d a male cupping one; the two latter which may be
connected or combined so as to form one structure, having a clamping
ring or follower C between them. These several dies are represented
as having a vertical position, with the die A uppermost, but the
position of the dies A, B, d, may be changed or reversed at pleasure,
and either the die A or the combined dies B, d, may be made to move,
It will
or both the die A and dies B, d, have motion given them.
suffice here however to refer to the upper die A as being the operating
one and the dies B, d, as stationary. The sheet that is being operated
on is of metal.
The devices for holding and actuating the dies are not here shewn,
inasmuch as they may be varied, but a screw or power press will answer
every purpose.
D in Fig. 1 is the metal sheet which is being operated on to which
end it is slidden or placed over the lower dies B, d, while the upper die

page_text: The combined male cutting and female cupping die A is of hollow
cylindrical construction, its outer lower margin forming its male cutting
edge or portion, and its interior which is fitted with a spring borne
plunger that bears down on the centre portion of the blank being the
female cupping part of the die.
The combined female cutting die B and the male cupping die d leave
an annular space, the outer upper margin of which is the cutting edge of
the female cutting die B and in close contact with which the outer
cutting edge of the male cutting and cupping die A works as the
latter passes down within the annular cavity of the lower dic. The
male cupping die d receives the female cupping portion of the die A
loosely over it so as to give room for the cupping of the blank.
The clamping ring or follower C is arranged to freely fit the annular
space which separates the dies B and d and is borne upwards or
outwards towards the upper die A by a stout spring h and suitable con-
nections. At the commencement of the down stroke of the upper die A
the blank is first cut or stamped out from the sheet D and subsequently
by a continuation of the down stroke of the upper die is drawn out and
cupped as required without puckering of its margin. This is effected
by the action of the several dies relatively with each other, which
clamp or hold the marginal portion of the blank (during the act of
cupping) between the ring C and the lower end of the upper die. The
marginal portion of the blank thus held is gradually drawn out from
between the ring and the upper die against an increasing resistance
of the spring h, and is formed or worked up into the sides of the
cupped article free from all irregularity and blemish of finish. After
the cupped article has been thus produced it is expelled from the lower
die by the clamping ring C upon the working die A being moved
upwards to admit of it.
By the combination and arrangements of parts shewn and described,
it will be observed that not only may deeply cupped articles be pro-
duced (without puckering) by the same dies used to cut out the blank
and at the same operation, but that a single die action or motion such
as is obtainable from a single reciprocating plunger of an ordinary power
press is sufficient to complete the work, thus dispensing with a second
or auxiliary plunger action which involves complicated mechanism.
Moreover by the spring / being arranged on the outside of or beyond

page_text: the dies (as represented in the Drawing) for action by plungers and
rods or any suitable intermediate devices, on the clamping ring or
follower C a much stouter spring can be employed than could possibly
be used if arranged within the dies or the space which separates
the dies B and d, so that by means of the dies deeper cupped articles
and of stouter material, or in other words, articles totally different (as
regards their uses) can be produced than if the spring were arranged
within the dies.
Having now described the Invention which has been communicated
to me by my foreign correspondent, I claim as the Invention secured to
me by Letters Patent as aforesaid,—
First. The combination (with the female cutting die B) of the male
cupping died and the female cupping die A. (which also forms a male
cutter) together with the spring borne clamping ring or follower C as
and for the purpose herein set forth.
Second. The arrangement of spring / externally to the dies and to the
device supported by such spring, and which supports the follower C
within the die as described and shewn, whether such device be posts or
any equivalents thereof.
In witness whereof, I, the said William Edward Newton, have 2
hereunto set my hand and seal, the Twenty-sixth day of June, in
the year of our Lord One thousand eight hundred and seventy-
three.