Year: 1887

page_text: Date of Application, 29th Aug., 1887
Complete Left, 4th May, 1888
Complete Accepted, 8th June, 1888
I, PHILIP THAINE Secretary of the Nordenfelt Guns and Ammunition Company
Limited of 53 Parliament Street in the City of Westminster (a communication to me
from abroad by Thorsten Nordenfelt of Marstrand in the Kingdom of Sweden Civil
Engineer) do hereby declare the nature of this invention to be as follows :-
The object of my invention is to make such cartridges in such manner that they
will work right in rifles and especially in machine guns without inconvenience and
without danger.
The usual way with blank ammunition has been up to the present to fire the powder
from the drawn cartridge case without bullet but such cartridge cases without bullets
1st on account of their shape 2nd on account of their light weight, do not work well
in machine guns. For use in these guns some special cartridge cases have been used,
drawn so long and of such a shape as to represent complete cartridges. But these
had the fault that having a large capacity, it was necessary to use very large charges
of powder in order to fill these cases, so causing a greater expense than was necessary
and too much smoke. If instead these cases were only filled half way up there was
the risk of hang fires and sometimes the powder getting loose came out especially if
the cases were not properly wadded, this being a source of great danger.
We now propose making this blank ammunition as shown in the drawing.
The cartridge cases are drawn longer than usual, and before they are made of the
proper shape, namely when they are still in the cylindrical shape, a piece of tube of
lead or iron or other suitable material, cut of the proper length is put into the cases
which are then choked over this into their proper final shape. Or a mandril being
5 Drinn Q77

page_text: put into the cases, lead or other suitable metal can be cast into them so as to fit all
round.
In this way we increase the weight of these blank cartridges, and we diminish their
capacity so as to contain only the required quantity of powder."
In this way the cases are made serviceable and perfectly safe for rifles and machine
guns.
CARPMAEL & Co.,
Agents for the Applicant.
J, Philip ThainE, Secretary of the Nordenfelt Guns and Ammunition Company
Limited of 53 Parliament Street, in the City of Westminster (a communication to me
from abroad by Thorsten Nordenfelt, of Marstrand, in the Kingdom of Sweden, 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 :-
The object of my invention is to make such cartridges in such manner that they will
work right in rifles and especially in machine guns without inconvenience and without
danger.
The usual way with blank ammunitition has been up to the present to fire the
powder from the drawn cartridge case without a bullet, but such cartridge cases
without bullets 1st on account of their shape 2nd on account of their light weight do
not work well in machine guns. For use in these guns some special cartridge cases
have been used, drawn so long and of such a shape as to represent complete cartridges.
But these had the fault that having a large capacity, it was necessary to use very
large charges of powder in order to fill these cases, so causing a greater expense
than was necessary and too much smoke. If instead these cases were only filled
half way up there was the risk of hang fires and sometimes the powder getting
loose came out especially if the cases were not properly wadded, this being a source
of great danger.
I now propose making this blank ammunition as shown in the drawing left with
the Provisional Specification.
The cartridge cases are drawn longer than usual, and before they are made of the

page_text: proper shape, namely when they are still in the cylindrical shape, a piece of tube of
lead or iron or other suitable material, cut of the proper length is put into the cases
which are then choked over this into their proper final shape. Or a mandril being
put into the cases, lead or other suitable metal can be cast into them so as to fit all
round.
In this way I increase the weight of these blank cartridges, and I diminish their
capacity so as to contain only the required quantity of powder.
In this way the cases are made serviceable and perfectly safe for rifles and machine
guns.
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:-
1. Blank ammunition having a drawn metallic case and within the case a tubular
metallic lining substantially as described.
2. Blank ammunition in which the cavity of the case is partially filled with a tubular
lining so that thereby the charge chamber is considerably reduced in dimensions and
the weight of the cartridge suitably increased substantially as described.
3. Blank ammunition substantially as described and represented by the annexed
drawing.