Improved Manufacture of Cartridge Cases.
Year: 1892

page_text: being date of first Foreign Application (in 22nd Oct., 1891
France),
Date of Application (in United Kingdom), 16th Apr., 1892
Complete Specification Left, 1st June, 1892-Accepted, 9th July, 1892
PROVISIONAL SPECIFICATION.
Improved Manufacture of Cartridge Cases.
I, EUGENE BERGERAT of 15 Ruc des Halles, Paris, France, Gunsmith, do
hereby declare the nature of this invention to be as follows:-
This invention has reference to the application and use of celluloid in the
manufacture or formation of the body of cartridge cases two forms of which are
illustrated by way of example in central section in Figs. 1 and 2 of the accompanying
drawings.
These cases are each shown as formed of a single piece of celluloid which is
made into the desired shape in any suitable manner as for example by moulding or
casting.
Cartridge cases thus made are each formed at the base with a hole designed to
receive the cap, which may be of any suitable kind.
Cartridge cases made of celluloid as described possess many important practical
advantages:-
They are only about one half of the weight of brass cartridge cases of the same
calibre, and are not liable to oxidise by contact with the powder within them, they
therefore allow of being easily transported and safely stored. Their strength is
equal to that of brass cartridge cases, and they possess greater elasticity than such
cases which enables them to resist deformation during firing, and also allows of
their easy and certain extraction. They may thus be employed several times in
succession by providing them each time with new igniting caps.
The cartridge cases can be made in several pieces united together in any suitable
manner instead of being each made in one piece of celluloid, the several pieces
being either all of celluloid, or some of them being of celluloid, and the remainder
of other suitable material.
Cartridge cases constructed wholly or partly of celluloid as described, can
be used in the manufacture of cartridges of various kinds for military and other
fire arms.
Dated this 16th day of April 1892.
EUGENE BERGERAT,
By L. W., per F. B.
COMPLETE SPECIFICATION.
Improved Manufacture of Cartridge Cases.
I, EUGENE BERGERAT, of 15 Rue des Halles, Paris, 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 :—
This invention has reference to the application and use of celluloid in the
manufacture or formation of the body of cartridge cases two forms of which are
illustrated by way of example in central section in Figs. 1 and 2 of the drawings
filed with my Provisional Specification.

page_text: These cases are each shewn as formed of a single piece of celluloid which is
made into the desired shape in any suitable manner as for example by moulding or
casting.
Cartridge cases thus made are each formed at the base with a hole designed to
receive the cap, which may be of any suitable kind.
Cartridge cases made of celluloid as described possess many important practical
advantages
They are only about one half the weight of brass cartridge cases of the same
calibre, and are not liable to oxidize by contact with the powder within them, they
therefore allow of being easily transported and safely stored. Their strength is equal
to that of brass cartridge cases, and they possess greater elasticity than such cases,
which enables them to resist deformation during firing, and also allows of their
easy and certain extraction. They may thus be employed several times in succession
by providing them each time with new igniting caps.
The cartridge cases can be made in several pieces united together in suitable
any
manner, as for example by welding or by means of metallic ferrules or otherwise,
instead of being each made of one piece of celluloid, the several pieces being either
all of celluloid, or some of them being of celluloid, and the remainder of other
suitable material such as brass or cardboard.
Cartridge cases constructed wholly or partly of celluloid as described, can
be used in the manufacture of cartridges of various kinds for militiary and other
.fire.arms.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what I
claim is-
The manufacture of cartridge cases wholly or partly of celluloid substantially as
described.