Improvements in Blank Cartridges.
Year: 1890

page_text: Date of Application, 15th May, 1890
Complete Specification Left, 2nd Mar., 1891-Accepted, 4th Apr., 1891
PROVISIONAL SPECIFICATION.
..Improvements in Blank Cartridges.
We, LOUIS BACHMANN, of Etterbeck Lez-Bruxelles, Belgium, and HENRY
PIEPER, of 12, Rue des Bayards, Liege, Belgium, Manufacturers, do hereby declare:
the nature of this invention to be as follows:-
The object of our invention is to produce a blank cartridge in which there is-
neither any wadding nor any piece serving as substitute for the projectile, such as
is otherwise required in blank cartridges for magazine fire-arms in view of causing:
the magazine to operate properly.
For this purpose we construct the shell of the cartridge with a prolongation
having the size and form of the projectile, and we close the front end of this
prolongation either by pressing the same together in folds, or by making slits into
it and bending the parts thus formed over each other, so that in either case a.
bottom, preferably of bulbed shape, is obtained, which, when the cartridge is fired.
off, will fly open without separation of any parts of the cartridge.
Preferably the shell is made of an inner tube having the length of the whole.
cartridge and the diameter of the projectile, an outer tube possessing the form of the.
cartridge-chamber of the fire-arms, and a cap fitting with its rim on the outer tube
and having a recessed bottom extending into the inner tube. The said outer tube
is bent down with its front edge upon the inner tube, while subsequent to the
charging of the cartridge the tubes are united at their rear end with each other and
with the cap by pressing the latter and the tube-ends radially against the inwardly-
projecting bottom of the cap. The space between the two tubes may be filled with
a tube of card-board, paper, or other suitable material.
Dated the 15th day of May 1890
J. H. JOHNSON & Co.,
Agents.
COMPLETE SPECIFICATION.
Improvements in Blank Cartridges.
We, LOUIS BACHMANN, of Etterbeck Lez-Bruxelles, Belgium, and HENRY
PIEPER, of 12, Rue des Bayards, Liege, Belgium, Manufacturers, do hereby
declare the nature of this invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
The object of our invention is to produce a blank cartridge in which there is
neither any wadding nor any separate piece serving as substitute for the projectile,
such as has heretofore been employed in blank cartridges for magazine fire-arms in
view of causing the magazine to operate properly.
For this purpose the shell of our improved cartridge is constructed with a
prolongation having the form of the projectile and the front end whereof is closed
either by pressing the same together in folds, or by making slits into it and bending
the parts thus formed over each other, so that in either case a bottom, preferably
of bulbed shape, is obtained, which, when the cartridge is fired off, will fly open
without separation of any parts of the cartridge.
In the annexed drawing a cartridge carried out according to our invention
is shown by Fig. 1 in outside view and by Fig. 2 in longitudinal section. Figs. 3
to 6 represent the separate constituent parts in their original state. This cartridge

page_text: is composed of an inner tube a, designed to receive the charge of powder, and an
outer tube b, both of sheet iron, sheet copper or other suitable material, and a cap c
The tube a has a length equal to that of the ball-cartridge, or any other desired
length, and a diameter corresponding to the bore of the gun with which the cartridge
is to be used; the tube b possesses the form of the cartridge-chamber of the gun,
while the cap c fits with its rim on the contracted end of tube band has a recessed
bottom, extending into the tube a and adapted to receive the priming-cap d. The
tube is bent inward at its front end so as to fit on tube a, while both tubes are
united at their rear ends with each other and with the cap c in any known manner.
The space between the two tubes is, by preference, filled out with a cylinder e of
card-board, paper or other convenient material. The tubes a and b may be formed
by rolling spirally together strips of sheet-metal or by drawing them on a tube-
drawing bench.
In gun-practice during manoeuvres these cartridges present the advantage that
they may be fired off without any danger to the opposite party.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. A blank cartridge having a shell, the fore portion whereof possesses the form
of the projectile of a ball-cartridge, and which portion is closed by pressing its rim
together in folds or by slitting the same and bending the parts together, substantially
as described.
2. In a blank cartridge the combination of an inner tube a for receiving the
charge of powder, an outer tube shorter than tube a, and a cap c whereby the
tubes a and b are united at their rear ends, the front end of tube a being closed by
pressing the same together in folds or by slitting it and bending the parts together,
substantially as specified.
Deted the And don
1 1001
J. H. JOHNSON & Co.,
Agents.