Improvements in Cartridge Cases.
Year: 1893

page_text: Date of Application, 1st Feb., 1893
Complete Specification Left, 29th Sept., 1883-Accepted, 4th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in Cartridge Cases.
I, HEINRIOH MARTIN, of III Thongasse, No. 4, Vienna, Member of the Civil
Service, do hereby declare the nature of this invention to be as follows :—
This invention relates to that class of cartridge cases in which the body and the
base are formed of separate parts, so that the body can be made out of cardboard
or of a cheap light metal, while the base is made of strong resisting metal such as
iron, steel, or brass.
According to my invention tho body, that is, the part which contains the
explosive charge, is made of a single piece which is closed at bottom, and which,
as described below, is formed at bottom with a projecting ring.
On the accompanying drawings
Figs. 1 and 2 shew part longitudinal sections of two modes of constructing the
cartridge body A or A. It consists firstly of the cylindrical part a for receiving
the charge, which is closed at the lower end by a bottom b secured closely thereon,
without joint; secondly of an annular flange or rim o projeoting downwards, which
serves for the attachment of the metal base D.
The flange o may constitute a continuation of the part a as at Fig. 1, or it may
be of smaller diameter, arranged concentrically thereto as at Fig. 2.
The connection of the body A or A' with the base D may be effected by simply
pressing the one part into the other, as shewn at Figs. 4 to 7, or by screwing as at
Fig. 3 if the base is of one piece, and is surrounded by the flange c, as shewn
in Figs. 3 to 7., The base D can however be of one piece and be made to embrace
the flange e by means of a circular groove as at Figs. 8 and 11, the connection being
effected either by pressing alone, as at Fig. 8, or by both pressing and screwing as
at Fig. 11.
The base D can also be formed of two concentric parts D D' as shewn at Figs. 9,
10, 12, of which the inner one D' (Fig. 9) or the outer one D (Fig. 12) is screwed
on to the flange c while the other one is pressed on.
The base rim of the cartridge can be formed on the base D as at Figs. 3, 4
and 7 to 12, or on the lower edge of the flange c only, as at Fig. 5, or it may be
formed both on this lower edge and on the base D, as at Fig. 6.
The base rim may project beyond the cylindrical cartridge body, as at Figs. 8 to 6
and 8 to 10, or the cartridge can be of reduced diameter at bottom, so that the base
rim, while affording the requisite hold for the extractor, does not project beyond
the cylindrical part.
The flange e may be made with a dovetail or wedge shaped section, for stronger
attachment to the base D, as at Figs. 2 and 10, or it may be bent outwards at its
lower edge as at Fig. 8, or inwards as at Fig. 7.
The middle part of the base 6 D is formed to correspond with the form of anvil
required, and is provided with the usual holes for the penetration of the flame from
the percussion cap priming.
Dated this 1st day of February 1893.
ABEL & IMRAY,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Cartridge Cases.
1, HEINRICH MARTIN, of 111 Thongasse No. 4 Vienna, Member of the Civil
Service, 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 that class of cartridge cases in which the body and the
base are formed of separate parts, so that the body can be made out of cardboard
or of a cheap light metal, while the base is made of strong resisting metal such as
iron, steel, or brass.
According to my invention the body, that is, the part which contains the
explosive charge, is made of a single piece which is closed at bottom, and which, as
described below, is formed at bottom with a projecting ring.
On the drawings accompanying my Provisional Specification,
Figs. 1 and 2 show part longitudinal sections of two modes of constructing the
cartridge body A or A¹. It consists firstly of the cylindrical part a for receiving
the charge, which is closed at the lower end by a bottom b secured closely thereon,
without joint; secondly of an annular flange or rim c projecting downwards, which
serves for the attachment of the metal base D.
The flange e may constitute a continuation of the part a as at Fig. 1, or it may be
of smaller diameter, arranged concentrically thereto as at Fig. 2.
The connection of the body A or A' with the base D may be effected by simply
pressing the one part into the other, as shewn at Figs. 4 to 7, or by screwing as at
Fig. 3 if the base is of one piece, and is surrounded by the flange c, as shown
in Figs. 8 to 7. The base D can however be of one piece and be made to embrace
the flango e by means of a circular groove as at Figs. 8 and 11, the connection being
effected either by pressing alone, as at Fig. 8, or by both pressing and screwing
as at Fig. 11.
The base D can also be formod of two concentric parts D D' as shown at Figs. 9,
10, 12 of which the innor one D' (Fig. 9) or the outer one D (Fig. 12) is screwed
on to the flange while the other one is pressed on.
The base rim of the cartridge can be formed on the base D as at Figs. 3, 4
and 7 to 12, or on the lower edge of the flange c only, as at Fig. 5, or it may be
formed both on this lower edge and on the base D, as at Fig. 6.
•
The base rim may project beyond the cylindrical cartridge body, as at Figs. 3 to 6
and 8 to 10, or the cartridge can be of reduced diameter at bottom, so that the base
rim, while affording the requisite hold for the extractor, does not project beyond
the cylindrical part.
The flange & may be made with a dovetail or wedge shaped section, for stronger
attachment to the base D, as at Figs. 2 and 10, or it may be bent outwards at its
lower edge as at Fig. 8, or inwards as at Fig 7.
The middle part of the base b D is formed to correspond with the form of anvil
required, and is provided with the usual holes for the penetration of the flame from
the percussion cap priming.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A cartridge case in which the body a closed at the lower end by a bottom b
without joint, aud serving to receive the charge, is made of comparatively weak
material and is provided at bottom with a projecting ring or flange o of the same
material to which is secured the base D of strong material, substantially as
described.
2. The modification A shown at Fig. 2 wherein the projecting ring o is not

page_text: formed as a continuation of the part a but is made concentric therewith,
substantially as described.
3. In the construction of cartridge cases referred to in the preceding claims, the
various modes of fixing the body & with the base D and of forming the base rim
berein described with reference to Figs. 3 to 12 of the drawings.
Dated this 29th day of September 1893.
ABEL & IMRAY,
Agents for the Applicant.