IMPROVEMENTS IN STAMPING OR EMBOSSING PRESSES USED FOR EMBOSSING, COINING, OR STAMPING OF DEVICES OF ANY KIND ON METAL, PARCHMENT, PAPER, OR FABRICS OF ANY
Year: 1866

page_text: LETTERS PATENT to John Pinches, of No. 27, Oxenden Street, in the
Parish of Saint Martin-in-the-Fields, in the City of Westminster, and
County of Middlesex, Medalist, for the Invention of "IMPROVEMENTS IN
STAMPING OR EMBOSSING PRESSES USED FOR EMBOSSING, COINING, OR STAMPING
OF DEVICES OF ANY KIND ON METAL, PARCHMENT, PAPER, OR FABRICS OF ANY
"
Sealed the 7th August 1866, and dated the 10th February 1866.
PROVISIONAL SPECIFICATION left by the said John Pinches at the
Office of the Commissioners of Patents, with his Petition, on the 10th
February 1866.
I, JOHN PINCHES, of No. 27,. Oxenden Street, in the. Parish of Saint
Martin-in-the-Fields, in the City of Westminster, and County of Middlesex,
Medalist, do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN STAMPING OR EMBOSSING PRESSES USED FOR EMBOSSING, COINING, OR STAMPING OF
DEVICES OF ANY KIND ON METAL, PARCHMENT, PAPER, OR FABRICS OF ANY KIND,"
to be as follows:-
This Invention relates to the construction and arrangement of machines for
striking up metal or any other material in relief, or in the stamping out of
what are technically termed "blanks" from metal or other material.

page_text: The peculiar arrangement of my press will be readily understood by reference
to the accompanying Diagram, where A, A, A, A, is the base and frame of the
machine; B, a lever of the first order, commonly known as a bell-crank lever,
working on a fulcrum C, and actuated by the eccentric cam piece D, which is
affixed on to the axis E, on which axis is also the fly wheel F. The die G is
affixed to the lower end of the bent lever, and the converse H is fastened to
the base of the press in the ordinary way. The novelty in the construction
of this press is that I obtain a great power and rapid percussive motion by
the power or initial force being applied to the periphery of the fly wheel F,
which actuates the tappet eccentric cam piece D, which works and impinges
its force against the jaws J as it revolves, which force is communicated by the
lever B working in the fulcrum pin C, a rectangular motion being conveyed
to the die G. The inertia of the fly wheel making a more rapid movement
the force is conveyed to the tappet or eccentric cam piece D, which gradually
in its revolution impinges its force against the jaw J from the minimum to
the maximum throw of the eccentric block, producing the same effect as a
toggle joint lever, this increased force being conveyed to the lever B, as
described, produces not only a rapid percussive force on the die G, but lifts
the die from the matrix H instantly by the cam piece D actuating on the
opposite jaw piece J. I may further add that the same rectangular lever
may be brought into contact (on the lower limb) with a vertical slide or
plunger working in guides to which the die is attached, as the same principle
will obtain in both cases, the novelty of this Invention being in the combined
action of the fly wheel, cam block, and rectangular lever, as described, as
adapted to presses of the description herein set forth.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Pinches in the Great Seal Patent Office on the 9th
August 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, Jonn
PINCHES, of Number 27, Oxenden Street, in the Parish of Saint Martin-in-the-
Fields, in the City of Westminster, and County of Middlesex, Medalist, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Tenth day of February, in the year of our Lord
One thousand eight hundred and sixty-six, in the twenty-ninth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,"

page_text: the said John Pinches, Her special licence that I, the said John Pinches;
my executors, administrators, and assigns, or such others as I, the said
John Pinches, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after 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 "IMPROVE-
MENTS IN STAMPING OR EMBOSSING PRESSES USED FOR EMBOSSING, COINING, OR
STAMPING OF DEVICES OF ANY KIND ON METAL, PARCHMENT, PAPER, OR FABRICS
OF ANY KIND," upon the condition (amongst others) that I, the said John
Pinches, 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 John Pinches, 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, reference being had to the Drawings hereunto annexed, that is to
say
My Invention consists in the construction and arrangement of machines
for striking up metal or any material in relief, or in the stamping out of what
are techanically termed "blanks" from metal or other material.
The peculiar arrangement of my press will be readily understood by reference
to the accompanying Drawings, where A, A, is the base and frame of the
machine; B, a lever of the first order, commonly known as a bell-crank lever,
working on a fulcrum C, and actuated by the eccentric cam piece D, which is
affixed on to the axis E, on which axis is also the fly wheel F. The die G is
affixed to the lower end of the bent lever, and the converse H is fastened to the
base of the press in the ordinary way. The novelty in the construction of this
press is that I obtain a great power and rapid percussive motion by the power
or initial force being applied to the periphery of the fly wheel F, which actuates
the tappet eccentric cam piece D, which works and impinges its force against
the jaws J as it revolves, which force is communicated by the lever B working
in the fulcrum pin C, a rectangular motion being conveyed to the die G.
The inertia of the fly wheel making a more rapid movement, and the force
being conveyed to the tappet eccentric cam piece D, which gradually in its
revolution impinges its face against the jaw J from the minimum to the

page_text: maximum throw of the eccentric cam piece D, produces the same effect as a
toggle joint lever, this increased force being conveyed to the lever B, as
described, produces not only a rapid percussive force on the die G, but lifts
the die from the matrix H instantly by the cam piece D actuating on the
opposite jaw J. I may further add that the same rectangular lever may be
brought into contact (on the lower limb) with a vertical slide or plunger
working in guides to which the die is attached, as the same principle will
obtain in both cases.
Having now fully described and ascertained the nature of this my said
Invention, and the manner in which I believe the same can best be carried
into practical effect, I declare that I do not confine myself to the precise
details of construction herein-before described, as the same may be considerably.
varied in form and arrangement, without, however, departing from the nature
and purport of my Invention; but what I claim as of my Invention is the
combination of the fly wheel, tappet, eccentric cam piece, and rectangular lever
in combination as herein set forth and shewn in the Drawings, all of which
are acting substantially in the manner and for the purposes herein set forth.
In witness whereof, I, the said John Pinches, have hereunto set my
hand and seal, this Seventh day of August, in the year of our Lord
..One thousand eight hundred and sixty-six.
Witness,
GEORGE SEATON.
JOHN PINCHES. (Ls.)