Improvements in and in connection with Cartridges.
Year: 1893

page_text: Date of Application, 11th Apr., 1893
Complete Specification Left, 22nd Jan., 1894-Accepted, 24th Feb., 1894
Improvements in and in connection with Cartridges.
A communication by GEORGES THORBECKE, of Moscow, in the Empire of Russia,
Cartridge Manufacturer.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for
Foreign Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street,
Manchester, both in the County of Lancaster, and 323, High Holborn, in the
County of Middlesex, Civil Engineer, do hereby declare the nature of this invention
to be as follows:-
Cartridges generally possess the following inconveniences→
1. The powder, which is too much compressed by the wadding, causes the
recoil:
2. A part of the charge is driven out whilst yet unburnt, and burns only when it
is out from the mouth of the barrel and after the shot has dispersed, a loss of
strength results, and the shot becoming scattered renders it more difficult to reach
the mark.
These inconveniences are done away with by this system of cartridge, the
cartridge is formed with a circular surface, the bottom of which projects somewhat,
and is of a maximum diameter which permits the cartridges to be easily pulled out
from the chamber.
In the middle of the bottom of the cartridge, there is a cylindrical hollow to
receive the cap, and, at the centre of the cap, is a projection, in the middle of
which exists an opening of a spherical form. This latter opening and two small
openings, opposite one another and between the projection and the inner sides of
the hollow, conduct the fire from the cap to the powder.
The exterior of the cartridge is concentric and a little conical, the interior is also
concentric.
The part of the cartridge reserved for the charge of powder is of a smaller
diameter than the rest of the cartridge. At the point where the wadding is to be
placed, the interior of the cartridge has a row of rings with slanting sides. These
rings thereby form points of attachments on which the wadding is fixed.
A sufficient space should be left between the wadding and powder so that this
latter should not be compressed.
The powder will burn also completely in the barrel without any loss of power
and with the best result.
The cartridges may be of various dimensions and the wadding made of light
cardboard with a coat of oil of wax, etcetera, or be made of felt, the whole may be
covered with sheet lead or with waxed or vulcanised paper. The wads may also
be made with olive oil, tallow, soft soap and talc, etcetera.
The make of these waddings allows of them being placed easily in the rings on
the interior of the cartridge shell without the powder or the shot being disturbed.
These waddings give a stronger resistance to the powder and on leaving the
barrel the shot is not so liable to scatter.
These waddings though specially constructed for this new kind of cartridge may
also be used with advantage for ordinary kinds of cartridge shells especially for
smokeless powder.
T
The advantages of this system of cartridge are-
That the whole of the powder explodes at the same time, that is to say the

page_text: charge immediately takes fire all over without any loss whatever, the charge being
entirely burnt in the barrel.
2. To considerably diminish the recoil.
3. To prevent deviation of the shot from the point to which it is directed.
A communication by GEORGES THORBECKE, of Moscow, in the Empire of Russia,
Cartridge Manufacturer.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool and 6, Bank Street,
Manchester, both in the County of Lancaster and 323 High Holborn in the
County of Middlesex 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 :—
Cartridges generally possess the following inconveniences―
1. The powder, which is too much compressed by the wadding, causes the
recoil:
2. A part of the charge is driven out whilst yet unburnt, and burns only when
it is out from the mouth of the barrel and after the shot has dispersed, a loss of
strength results, and the shot becoming scattered renders it more difficult to reach
the mark.
These inconveniences are done away with by this improved cartridge which is
shown on the accompanying drawing,
Figure 1 being a longitudinal section ;
Figure 2 an end view and
Figure 3 a view of the wadding.
The cartridge is formed with a circular surface, the bottom C of which projects
somewhat, and is of a maximum diameter which permits the cartridges to be easily
pulled out from the chamber.
In the middle of the bottom of the cartridge, there is a cylindrical hollow D to
receive the cap, and, at the centre of the cap, is a projection, in the middle of
which exists an opening of a spherical form. This latter opening and two small
openings, opposite one another and between the projection and the inner sides of
the hollow, conduct the fire from the cap to the powder.
The exterior of the cartridge is concentric and slightly conical, the interior is
also concentric.
The part CE of the cartridge between the breech and the serrations e reserved
for the charge of powder is of a smaller internal diameter than the rest of the
cartridge. At the point E where the wadding A is to be placed, the interior of
the cartridge has serrations e which form points of attachments on which the
wadding is fixed.
A sufficient space should be left between the wadding and powder so that this
latter should not be compressed.
The powder will burn also completely in the barrel without any loss of power
and with the best result.
The cartridges may be of various dimensions and the wadding made of light
cardboard with a coat of oil, wax, etcetera, or be made of felt, the whole may be
covered with sheet lead or with waxed or vulcanised paper. The wads may also be
made with olive oil, tallow, soft soap and talc, etcetera.

page_text: The make of these waddings allows of them being easily placed in the rings on
the interior of the cartridge shell without the powder or the shot being disturbed.
These waddings give a stronger resistance to the powder and on leaving the barrel
the shot is not so liable to scatter.
These waddings though specially constructed for this new kind of cartridge may
also be used with advantage for ordinary kinds of cartridge shells especially for
smokeless powder.
The advantages of this improved cartridge are-
1. That the whole of the powder explodes at the same time, that is to say the
charge immediately takes fire all over without any loss whatever, the charge being
entirely burnt in the barrel.
2. To considerably diminish the recoil.
3. To prevent deviation of the shot from the point to which it is directed.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is :-
An improved cartridge in which the diameter of the part enclosing the powder
is smaller than that of the rest of the cartridge, and in which serrations are formed
at the point of juncture of the two diameters for the object of holding the wad, or
composition which replaces it, substantially as hereinbefore described and shown on.
the accompanying drawing.
Dated this 19th day of January 1894.
WM. P. THOMPSON & Co.,
Agents for the Applicant.