of Cartridge Cases and for other like Purposes.
Year: 1885

page_text: of Cartridge Cases, and for other like Purposes.
I ALFRED JULLIEN of No 10, Rue de la Fidélité, Paris, in the Republic of
France, Civil Engineer, do hereby declare the nature of the said invention for
" IMPROVEMENTS IN THE MANUFACTURE OF BLANKS TO FORM THE BOTTOMS OF
» to be as follows:-
CARTRIDGE CASES AND FOR OTHER LIKE PURPOSES
My invention relates to an economical and rapid process of manufacturing blanks
to form the bottoms of cartridge cases and for other like purposes.
In carrying out my invention I cast cylindrical bars of suitable metal of a
smaller diameter than that of the required blanks; I then cut the said bars into
small cylinders of the weight of the required blanks. These small cylinders of
cast metal are then brought to the required thickness and diameter by hammering,
stamping or otherwise so as to, increase the density of the metal and thereby prevent
the defects produced by the existing process of manufacturing the blanks' from
rolled sheet uietal.

page_text: of Cartridge Cases, and for other like Purposes.
I 'ALFRED JULLIEN of No 10, Rue de la Fidélité, Paris, in the Republic of
France, Civil Engineer, 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 relates to improvements in the manufacture of blanks for the
bottoms of cartridge cases and for other like purposes.
Hitherto in the manufacture of cartridge cases the blanks for forming the
bottoms thereof have been cut out from flat strips of the various metals or alloys
which were employed such as copper, brass, bronze, German silver and the like
and it has been found that for one hundred kilogrammes of metal placed in the
crucible only about 30 kilogrammes of bottoms fit for making cartridge cases were
eventually obtained, the remaining seventy kilogrammes being returned to the
foundry in the course of the rolling and cutting operations.
By my invention I manufacture the said bottoms with great economy by
increasing the hardness and consequently the resistance of the metal or alloy
employed.
My improved process consists in running into a plaster mould or sand mould or
by other suitable process, with or without pressure other than that of the dead
head, with or without the employment of known means of pressure, bars which
I submit to several rolling, drawing, or hammering operations. I then cut the
blanks from the said bars by saws or other suitable means the sawn or cut faces
of which blanks I strike or hammer so as to compress the grain of the metal and
increase its density, bringing the blanks at the same time to the required form
and dimensions. In this manner a much greater quantity of metal is utilized as
blanks and denser cartridge bottoms are obtained at a smaller cost.
Another advantage of my process is the economy and the facility afforded for
covering the blanks with another metal if required. For this purpose only a simple
setting is necessary of the blank in the surface of the metal which it is intended
to apply thereto.
My process is applicable to all metals whether precious or other metals and to
metallic alloys such as silver, copper, iron nickel, aluminium, tin, zinc, and the like
and their alloys such as bronze, brass, German silver, and the like for manufacturing
all kinds of blanks for bottoms for the purpose of making sewing thimbles, drinking
cups, watch cases, saucepans, ferrules, penholders, cartridges, cannon cartridges etc;
it is also applicable for blanks having impressions or not for coins and medals and
for other similar purposes.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
The herein described process of manufacture for obtaining blanks for the bottoms
of cartridges and other like purposes which consists in casting a metal bar or
cylinder, cutting it into discs perpendicularly to the axis of the bar or cylinder,
and then hammering the blanks on their cut faces substantially as hereinbefore
described.