Improvements in or relating to Cartridges for Sporting Guns.
Year: 1896

page_text: Date of Application, 9th June, 1896
Complete Specification Left, 6th Mar., 1897-Accepted, 22nd May, 1897
PROVISIONAL SPECIFICATION.
Improvements in or relating to Cartridges for Sporting Guns.
I, CLEMENTINE TROSSY, femme Granetias, of 17, Avenue de la République,
Clermont-Ferrand, in the Republic of France, do hereby declare the nature of
this invention to be as follows:-
My invention has for its object a system of cartridge characterised by the
combination of a certain number of small rifled or smooth barrels united together by
simple assemblage of the parts or better in actual practice by being formed in a single
block of metal, the whole forming an arrangement of tube that can be lodged in
the chamber of a gun which is charged at the breech. The rear of the tube has a
single opening serving to receive the base of the cartridge designed to effect the
ignition of each of the cartridges one after another forming the charge of each of the
tubes. This cartridge which, in accordance with its constitution, I will call
the mitrailleuse cartouche because it permits of the production of a mitrailleuse
effect, is essentially designed to permit transformation of the sporting gun, which
is an arm of relatively feeble carrying power, into an arm of great carrying power
(where the small barrels are rifled) in those cases where if out shooting, more
important but more distant game comes into view of the hunter, it being possible
to replace the cartridge already in the barrel of the gun by the mitrailleuse
cartouche almost instantaneously.
The mitrailleuse cartouche consists of a metallic tube formed in the manner of
tubes of this nature, that is to say, that it has round its rear extremity a bead
which lodges in a corresponding groove in the breech of the barrel; an enlarge-
ment which is placed in the chamber of the breech; and a part of smaller cross
section which is extended into the barrel. In the said tube a certain number of
barrels are bored which can be smooth or rifled and the number of which can vary
according to their respective diameter and the calibre of the gun. Each of these
barrels presents at its extremity nearest to the breech a chamber in which is lodged a
projectile by preference conical cylindrical, at the back of which is placed the
powder which forms the main body in the socket of the cartouche arranged after
the ordinary manner, with this single difference, that this socket does not carry
priming but is hollowed out or perforated at its posterior part. Lastly the tube
terminates at its posterior part as a chamber in which is placed an end of the
cartouche arranged in the ordinary mauner with the sole difference that between
the cardboard which forms the base and the socket properly so called is constructed
a vacant space which is designed to permit the gaseous products of ignition to
enable the socket to fit exactly on the tube in such manner as to prevent leakage
or spitting. The cap is arranged in the ordinary manner. It will be well
understood that the firing may be by a needle or by central percussion according
to the case. The base of the cartouche ought not to occupy all the space of the
chamber at the rear of the tube, but a space should be left between it and the
cartridge to permit of the priming of the single percussion producing a simultaneous
ignition of the different cartridges or of charges of powder which may replace
them.

page_text: improvements in or relating to Cartridges for Sporting Guns.
I, CLEMENTINE TROSSY, femme Granetias, of 17, Avenue de la République,
Clermont-Ferrand, in the Republic of France, 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 :-
My invention has for its object a system of cartridge characterised by the
combination of a certain number of small rifled or smooth barrels united together
by simple assemblage of the parts or better in actual practice by being formed in
a single block of metal, the whole forming an arrangement of tube that can be
lodged in the chamber of a gun which is charged at the breech. The rear of the
tube has a single opening serving to receive the base of the cartridge designed to
effect the ignition of each of the cartridges one after another forming the charge
of each of the tubes. This cartridge which, in accordance with its constitution,
I will call the mitraillense cartouche, because it permits of the production of a
mitrailleuse effect, is essentially designed to permit transformation of the sporting
gun, which is an arm of relatively feeble carrying power, into an arm of great
carrying power (where the small barrels are rifled) in those cases where, if out
shooting, more important but more distant game comes into view of the hunter, it
being possible to replace the cartridge already in the barrel of the gun by the
mitrailleuse cartouche almost instantaneously.
I will now refer to the accompanying drawing in which as an example
Figure 1 is a longitudinal sectional elevation of a mitrailleuse cartouche on my
system on an enlarged scale and with rifled barrels.
Figure 2 is a transverse sectional elevation of the same made on the line 1-2 of
Figure 1.
The mitrailleuse cartouche shown in the drawing consists of a metallic tube A
formed in the manner of tubes of this nature, that is to say, that it has, round its
rear extremity, a bead a which lodges in a corresponding groove in the breech of
the harrel; an enlargement a' which is placed in the chamber of the breech; and
a part a² of smaller cross section which is extended into the barrel. In the said
tube A, a certain number of barrels B are bored which can be smooth or rifled (in
the drawing they are the latter) and the number of which can vary according to
their respective diameter and the calibre of the gun. Each of these barrels B
presents at its extremity nearest to the breech a chamber B' in which is lodged a
projectile C by preference conical cylindrical, at the back of which is placed the
powder which forms the main body in the socket C' of the cartouche arranged
after the ordinary manner, with this single difference, that this socket does not
carry priming but is hollowed out or perforated at its posterior part c. In order
to specialise or restrict the action of the powder contained in each of these sockets
or cartridges, that is to say, to prevent their expansive force acting indifferently on
one or other of the projectiles it is well to cover each of the perforations c with a
little concave star-shaped piece of thin tinfoil which permits the explosion and
prevents nevertheless the action just mentioned, because under the action of the
pressure of the gases arising from the explosion, the little tinfoil cover fits over
the communication opening c¹ and thus prevents any possibility of the ignited gases
returning backwards. Lastly, the tube A terminates at its posterior part D as a
chamber in which is placed an end E of the cartouche arranged in the ordinary
manner with the sole difference that between the cardboard which forms the base
and the socket properly so called is constructed a vacant space G which is designed
to permit the gaseous products of ignition to press the socket exactly on the tube
in such manner as to prevent leakage or spitting. The cap F is arranged in the

page_text: ordinary manner. It will be well understood that the firing may be by a neelle or
by central percussion according to the case. The base of the cartouche ought not.
to occupy all the space of the chamber D at the rear of the tube, but a space
should be left between it and the cartridges C¹ to permit the single priming cap F
producing a simultaneous ignition of the different cartridges C or of charges of
powder which may replace them.
The right is reserved of varying the dimensions, proportions and accessory parts.
and in employing in their construction such materials as I may deem suitable."
Having now particularly described and ascertained the nature of my said inven-.
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A cartridge for sporting guns, characterised by the combination with a single-
breech piece for pin fire or with a central cap placed in a chamber arranged at the
rear, of a series of barrels, rifled or otherwise, connected together or preferably
bored in the same tube, each of said barrels being adapted to receive a projectile.
and its charge of powder, or better still a small cartridge comprising a single-
projectile and its charge, such cartridge having at the rear a perforation preferably
covered internally with a little concave star-shaped cover, in order to allow of the
ignition of the cartridge by a cap in the breech, the whole substantially as herein.
before described and shown as an example in the accompanying drawing.
Dated this 5th day of March 1897.
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Birmingham, and London, Patent Agents..