IMPROVEMENTS IN CASE AMMUNITION to be as follows:-
Year: 1885

page_text: I, THORSTEN NORDENFELT of 53 Parliament Street in the City of Westminster,
Civil Engineer do hereby declare the nature of my invention for "IMPROVEMENTS
IN CASE AMMUNITION to be as follows:-
"
This invention has for its object improvements in case ammunition. .
I make case ammunition with the powder charge and the case shot combined in
one cartridge.
The shell which receives the bullets is of brass lined with iron segments to keep
it in form and prevent the brass being driven by the bullets into the grooves of
the gun. The iron segments are stamped or otherwise reduced to form and their
front ends are curved to follow the more or less pointed form of the fore part of
the shell. The segments thus support the fore part of the shell and protect it
from injury. An annular groove is formed around the shell in the outer brass
coating as well as in the inner segments, and in advance of the groove an annular
ridge is also formed on the outer coating. The powder case is of metal and it
receives the shell containing the projectiles within it as far as the ridge already
mentioned permits it to enter. The two parts are secured the one to the other by
indenting the powder case so as to form around it a ring corresponding with the
ring groove in the shell containing the projectiles and so that the metal of the
powder case is nipped into the corresponding groove in the shell
Dated this 6th date of Ian 100K
CARPMAEL & Co.,
Agents for the Applicant.

page_text: I THORSTEN NORDENFELT of 53 Parliament Street in the City of Westminster
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 has for its object improvements in case ammunition.
I make case ammunition with the powder charge and the case shot combined in
one cartridge.
The shell which receives the bullets is of brass lined with iron segments to keep
it in form and prevent the brass being driven by the bullets into the grooves of
the gun. The iron segments are stamped or otherwise reduced to form and their
front ends are curved to follow the more or less pointed form of the fore part of
the shell. The segments thus support the fore part of the shell and protect it
from injury.. An annular groove is formed around the shell in the outer brass
coating as well as in the inner segments and in advance of the groove an annular
ridge is also formed on the outer coating. The powder case is of metal and it
receives the shell containing the projectiles within it as far as the ridge already
mentioned permits it to enter. The two parts are secured the one to the other by
indenting the powder case so as to form around it a ring corresponding with the
ring groove in the shell containing the projectiles and so that the metal of the
powder case is nipped into the corresponding groove in the shell.
In order that my said invention may be most fully understood and readily
carried into effect I will proceed to described the drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a longitudinal section of a case shot constructed according to my
invention.
Figures 2 show one of the segments of the lining.
Figure 3 is a longitudinal section of the completed case cartridge.
'
The shot case a I prefer to make of brass solid drawn but it may be of other
metal which will not injure the grooving of the gun.
At a an annular groove is formed around the case a on the outside and a
corresponding ridge within.
At a is another groove but on the inner side of the case and the ridge is on
the exterior.
b. b. are the segments with which I line the interior of the case a.
The case
contains three such segments, they fit closely together. I prefer to make these
segments of sheet iron or steel stamped to the form shown.
At b¹ a groove is formed on the exterior of each segment and there is a
corresponding ridge on inner side.
c. c. are the bullets. d is a base, it may be of wood.
The segments 6 when inserted within the case a interlock with it the ridge a¹
entering the grooves b. The base d is inserted until it abuts upon the ends of the

page_text: segments and it is retained by closing in upon it the open end of the case as is
represented in Figure 3. The case shot is then complete."
The powder case e in Figure 3 is such as has heretofore been employed in
connection with solid projectiles in cartridges for machine guns; the case shot is
inserted into its open end over the powder charge until the end of the case e comes
to abut upon the ridge a upon the exterior of the shell a. The case e is then
secured to the exterior of the case a by indenting the former into the groove a¹ in
the latter thus producing a corresponding groove e¹ around the exterior of the
case e and a like ridge on the interior of the same.
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
(1.) Case ammunition having a metal shot case enclosing the bullets and a metal
powder case containing the powder charge; the said parts being combined by
inserting the rear end of the shot case into the mouth of the powder case sub-
stantially as described.
(2.) Case shot having a shot case of brass or other metal which will not injure
the grooving of the gun, and segments of iron or other metal preventing the metal
of the shot case being driven by the bullets into the grooves of the gun sub-
stantially as described.
(3.) Case ammunition substantially as described and shown by the drawings
with the shot case enclosing the bullets secured to the metal powder case
containing the charge by interlocking annular grooves and projections sub-
stantially as described.