Year: 1885

page_text: I JACQUES PHILLIPPE PIERI of St. Margarets Mansions, Victoria Street, West-
minster, Middlesex, Gentleman, do hereby declare the nature of this invention to
be as follows:-
;
}
The object of this invention is certain improvements in cartridges for cannon or
machine guns.
:
The cartridge case is of steel and preferably in one piece with a greater thickness
of metal near the base than at the open end, the taper being on the inner side. The
steel case thus made is heated to any desired degree and immersed in fluid, tin
which fills any interstices or pores that may be in the surface or surfaces and
leaves them perfectly clean and smooth. The case is then immersed in oil heated
to the desired degree so as to temper the steel and make it of a springy yielding
and rebounding character so that it may be recharged and used again and again or
as often as desired, the case not being in any way damaged by the successive
firings to which it may be subjected, the case being always intact.
In connection with said case I use an internal conical perforated or meshed cup
into which I place very fine and quickly burning powder or other highly explosive
agent. The cup thus charged, is placed in the centre of the cartridge case with its
base close to the percussion, so that the conical part projects or has a position well
within the body of the ordinary powder which surrounds it.
The shot or projectile which forms part of this cartridge is provided with fillet
rings of soft metal or other suitable material projecting from its body, said rings
being of varying diameters so that the larger diameter first impinges upon the wall
of a plain portion of the barrel of the gun and becomes gradually compressed or
reduced in diameter in its travel through a conical portion of the barrel previous
to entering the rifled portion such as that, described in my Patent Application
N° 14548 of 1885.
The base of the shot or projectile is provided with a gas disc which may be
recessed or cup shaped and contain a portion of compressed powder or other
explosive agent for obtaining when fired an accelerating action upon the projectile
while moving through the gun, a cushion of any desirable material being between
the projectile and the gas check.

page_text: I JACQUES PHILLIPPE PIERI of St Margarets Mansions, Victoria Street, West-
minster, Middlesex, Gentleman 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:-
The object of this invention is certain improvements in Cartridges for cannon or
machine guns.
The cartridge case is of steel and preferably in one piece with a greater thickness
of metal near the base than at the open end the taper being on the inner side. The
steel case thus made is heated to any desired degree and immersed in fluid tin
which fills any interstices or pores that may be in the surface or surfaces and leaves
them perfectly clean and smooth. The case is then immersed in oil heated to the
desired degree so as to temper the steel and make it of a springy yielding and
rebounding character so that it may be recharged and used again and again or as
often as desired the case not being in any way damaged by the successive firings
to which it may be subjected, the case being always intact.
In connection with said case I use an internal conical perforated or meshed cup
into which I place very fine and quickly burning powder or other highly explosive
agent. The cup thus charged is placed in the centre of the cartridge case with its
base close to the percussion so that the conical part projects or has a position well
within the body of the ordinary powder which surrounds it.
The shot or projectile which forms part of this cartridge is provided with fillet
rings of soft metal or other suitable material projecting from its body, said rings
being of varying diameters so that the larger diameter first impinges upon the wall
of a plain portion of the barrel of the gun and becomes gradually compressed or
reduced in diameter in its travel through a conical portion of the barrel previous to
entering the rifled portion such as that described in my Patent Application of
same date.
The base of the shot or projectile is provided with a gas disc which may be
recessed or cup shaped and contain a portion of compressed powder or other
explosive agent for obtaining when fired an accelerating action upon the projectile
while moving through the gun, a cushion of any desirable material being between
the projectile and the gas check.
My invention is shown on the annexed drawing. A is the steel tube tapered
internally and treated or prepared in the manner herein before described. B is an
internal conical meshed cup of zinc or other soft metal. C is the quick firing
powder or highly explosive agent. D is the ordinary powder surrounding it. E is
the bullet or shot and F, F, the fillet rings of different diameters for engaging

page_text: within and being compressed by the grooves of the rifling. G is the gas disc and
H the cushion.
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 Cartridge in its entirety herein before described and illustrated in the
annexed drawings.