IMPROVEMENTS IN THE MANUFACTURE OF CARTRIDGE CASES."
Year: 1868

page_text: LETTERS PATENT to Frederic Thomas Baker, of Fleet Street, in the
City of London, Gun Maker, for the Invention of "IMPROVEMENTS
IN THE MANUFACTURE OF CARTRIDGE CASES."
PROVISIONAL SPECIFICATION left by the said Frederic Thomas Baker
at the Office of the Commissioners of Patents, with his Petition,
on the 5th March 1868.
I, FREDERIC THOMAS BAKER, of Fleet Street, in the City of London,
Gun Maker, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF CARTRIDGE CASES," to be as
follows:-
My Invention consists in employing tinfoil in the manufacture of
cartridge cases in combination with paper. For this purpose I roll on
the paper which constitutes the cartridge case or tube a layer of tinfoil,
and I then apply the ordinary brass or other base, when such is used,
the base fitting over the tinfoil in the same way as over an ordinary
paper case or tube. Or I roll or interpose a layer of tinfoil between the
rolls or layers of paper which constitute the cartridge case or tube, the
base being applied as usual. Or I roll a layer of tinfoil over the paper

page_text: case, as in the first mode, but so as to extend only to the edge of the base;
I then apply a layer of Brunswick black or analogous material at the
joint. In each of the modes the tinfoil is fixed securely at all points to
the paper by an adhesive matter. For sporting cartridges I also cover
the wad which closes the cartridge with tinfoil, so that when the cart-
ridge is turned or closed down as usual the whole of the exterior, except
when the foil is inside, is metallic and waterproof. Cartridge cases made
according to my Invention can be refilled after their charge has been
exploded and used again.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Frederic Thomas Baker in the Great Seal Patent
Office on the 5th September 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FREDERIC
THOMAS BAKER, of Fleet Street, in the City of London, Gun Maker,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of March, in the year of our
Lord One thousand eight hundred and sixty-eight, in the thirty-first year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said Frederic Thomas Baker, Her special licence that I, the
said Frederic Thomas Baker, my executors, administrators, and assigns,
or such others as I, the said Frederic Thomas Baker, 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 THE MANU-
FACTURE OF CARTRIDGE CASES," upon the condition (amongst others) that
I, the said Frederic Thomas Baker, 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.

page_text: NOW KNOW YE, that I, the said Frederic Thomas Baker, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement thereof, reference being had to the Drawings
hereunto annexed, that is to say :-
My Invention consists in employing tinfoil in the manufacture of
cartridge cases in combination with paper. For this purpose I roll on
the paper which constitutes the cartridge case or tube a layer of tinfoil,
and I then apply the ordinary brass or other base, when such is used,
the base fitting over the tinfoil in the same way as over an ordinary
paper case or tube.
The accompanying Drawing represents a cartridge case in section.
a is the paper which constitutes the cartridge case or tube; is the layer
of tinfoil rolled upon the paper a; c is the ordinary base. Or I roll or
interpose a layer of tinfoil between the rolls or layers of paper which
constitute the cartridge case or tube, tho base being applied as usual.
Or I roll a layer of tinfoil over the paper case, as in the first mode, but
so as to extend only to the edge of the base, that is to say, to the point
marked d in the Figure; I then apply a layer of Brunswick black or
analogous material at the joint d. In each of the modes the tinfoil is
fixed securely at all points to the paper by an adhesive matter. For
sporting cartridges I also cover the wad which closes the cartridge with
tinfoil, so that when the cartridge is turned or closed down as usual the
whole of the exterior, except when the foil is inside, is metallic and
waterproof. Cartridge cases made according to my Invention can be
refilled after their charge has been exploded and used again.
And having now described the nature of my said Invention, and in
what manner the same is to be performed, I declare that I claim the
employment of tinfoil in combination with paper in the manufacture of
cartridge cases, substantially as herein-before described.
In witness whereof, I, the said Frederic Thomas Baker, have
hereunto set my hand and seal, this Fourth day of September,
One thousand eight hundred and sixty-eight.
FREDERIC T. BAKER. (L.S.)