Improvements in Cartridges for Ordnance.
Year: 1888

page_text: PROVISIONAL SPECIFICATION.
•
Improvements in Cartridges for Ordnance.
1, JOSIAH VAVASSEUR, of the London Ordnance Works, Bear Lane, Southwark, in
the County of Surrey, Engineer, do hereby declare the nature of this invention to be
as follows:
Heretofore cartridges for ordnance have been solid drawn in one piece, which
renders the manufacture difficult and expensive. According to this invention I make
the cartridges in two pieces, a tube and a base-the base is made of a cup-like form
similar to a solid drawn cartridge but shorter; this I join in various ways to the
tube which fits over it, but it is essential that the two should be firmly joined together.
I provide the cartridge with a flange, for extraction. Preferably I form both the tube
and the base with flanges which lie one in front of the other, being joined by rubbing
over the edges or by soldering or screwing. The flange of the tube may however be
dispensed with, in which case its rear end is joined to the cup, being pressed into a
recess in it and secured by a hoop or band.

page_text: COMPLETE SPECIFICATION.
Improvements in Cartridges for Ordnance,
I, JOSIAH VAVASSEUR, of the London Ordnance Works, Bear Lane, Southwark, in
the County of Surrey, 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 :-
Heretofore cartridges for ordnance have been solid drawn in one piece which
renders the manufacture difficult and expensive. According to this invention I make
the cartridges in two pieces, a tube and a base the base is made of a cup like form
similar to a solid drawn cartridge but shorter; this I join in various ways to the tube
which fits on it either inside or outside, but it is essential that the two should be
firmly joined together. I provide the cartridge with a flange for extraction.
Preferably I form both the tube and the base with flanges which lie one in front of
the other, being joined by rubbing over the edges or by soldering or screwing. The
flange of the tube may however be dispensed with, in which case its rear end is joined
to the cup being pressed into a recess in it and secured by a hoop or band.
DESCRIPTION OF THE DRAWINGS.
Figures 1 to 6 show cartridge cases constructed according to my invention.
Figure shows part of the case Figure 3 to a larger scale and Figure 5 shows the
same in-process of manufacture. a is the base and the tube. In Figures 1 and 2
the tube is outside the base. In Figure 1 the tube and base are soldered together.
In Figure 2 the end of the tube is pressed into a recess in the base and is secured
by the ring c. In Figure 3 the tube is inside the base. The parts of this case are
put together as shown in Figure 5 and the tube is then rubbed or pressed to make it
enter the grooves in the base as shown in Figure 4. In Figure 6 the base is provided
with internal grooves as in figures 3-5. After the tube has been pressed or rubbed
into these it is secured by the ring d which is pressed into the dovetail recess left
between the tube and the head.
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. A cartridge case consisting of a tube and a base of a cup like form the tube
fitting inside or outside the base and the two being secured together.
2. The cartridge cases shown in Figures 1, 2, 3-5 and 6 of the drawings.
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