IMPROVEMENTS IN CARTRIDGES FOR ELECTRIC FIRE ARMS
Year: 1884

page_text: I, THOMAS PAGE WOOD of 35, Nicholas Street, City of Bristol, Gunmaker, do
hereby declare the nature of said invention for "IMPROVEMENTS IN CARTRIDGES
FOR ELECTRIC FIRE ARMS "to be as follows :-
This invention relates to the construction of cartridges to be discharged in the
manner aforesaid by electricity in fire arms or otherwise and such Cartridges may
with advantage be used in guns such as referred to in the Provisional Specification
of my application for Letters Patent No 4786 bearing even date herewith
(i.e. 12th March 1884). Embedded in a wad of insulating material at the base of
the case are the wires whereby the path of the current is continued from the wires
in the gun. One of the wires is centrally placed and the other at a distance
therefrom to correspond with the position of the wires in the gun. This latter
wire is continued round and through a portion of the insulating wad in the form
of a ring, so that the cartridge when placed in the gun may be always in position
for connection with the wires in the gun.
Instead of fixing to the wires in the cartridge the platinum or other substance
by which the powder of the charge is ignited, it may be dropped into or deposited
in a recess formed in the insulating wad around the inner ends of the wires.
Under this arrangement charging and re-charging of the case may be moro
expeditiously effected. The portion of the case embracing the insulating wad and
the wires may be adapted to be screwed to the body of the case.
In applying cartridges, constructed in accordance with this invention, for
blasting purposes, the wires in the insulating wad may be extended back to form
eyes or loops for the attachment of the wires from the battery.
W. LLOYD WISE,
Per F. J. Brougham,
Applicant's Agent.

page_text: I, THOMAS PAGE WOOD, of 35, Nicholas Street, City of Bristol, Gunmaker, do
hereby declare the nature of my invention for "IMPROVEMENTS IN CARTRIDGES
FOR ELECTRIC FIRE-ARMS," and in what manner the saine is to be performed,
to be particularly described and ascertained in and by the following statement:—
This invention relates to the construction of cartridges to be discharged in the
manner aforesaid by electricity in fire-arms or otherwise and such cartridges may
with advantage be used in guns such as referred to in the Provisional Specification
of my application for Letters Patent, No 4786, bearing even date herewith
(i.c. 12th, March, 1884).
Embedded in a wad of insulating material at the base of the case are the wires
whereby the path of the current is continued from the wires in the gun. One of
the wires is centrally placed and the other at a distance therefrom to correspond
with the position of the wires in the gun.
This latter wire is continued round and through a portion of the insulating wad
in the form of a ring, so that the cartridge when placed in the gun may be always
in position for connection with the wires in the gun.
Instead of fixing to the wires in the cartridge the platinum or other substance
by which the powder of the charge is ignited, it may be dropped into or deposited
in a recess formed in the insulating wad around the inner ends of the wires.
Under this arrangement charging and recharging of the case may be more
expeditiously effected.
•
The portion of the case embracing the insulating wad and the wires may be
adapted to be screwed to the body of the case.
In applying cartridges, constructed in accordance with this invention, for
blasting purposes, the wires in the insulating wad may be extended back to form
eyes or loops for the attachment of the wires from the battery.
And in order that my said invention may be properly understood, I now proceed
more particularly to describe the same with reference to the accompanying sheet
of illustrative drawings and the figures and letters marked thereon.
Figs. 1 and 2 on the accompanying sheet of drawings represent respectively a
longitudinal section and an end view of a cartridge case constructed in accordance
with one method comprised in my invention.
One of the wires, N, is centrally placed in the base c of insulating material.
The other wire, P, is placed at a distance therefrom to correspond with the
position of the wires in the fire-arm.
The wire P is continued round and through the base c in the form of a ring so
that the cartridge when placed in the fire-arm may be always in position for
electrical connection with the wires in the arm.
At a desired point in the case the wires N and P are connected by a link or
strip of platinum wire or other substance o which fuses or becomes incandescent at
the passage of the current consequent on the completion of the circuit through
actuation of the trigger of the arm as described in the Provisional and Completo
Specifications of my application for Letters Patent, No 4786, aforesaid.
At Figs. 3 and 4 is illustrated a modified form of cartridge caso.
Under this modification a V-shaped recess a is formed in the insulating material
of the base c. The wires N and P extend forwards to the bottom of this recess.
The case before being charged is vertically placed and the platinum wire o is
dropped into the recess and connects the wires. Under this arrangement, charging
and recharging of the case may be more expeditiously effected.

page_text: The base c may be dished or made concave and the recess a be formed in the
bottom of the concavity to further ensure the deposit of the platinum wire in the
recess.
D
In applying cartridges constructed in accordance with this invention, for
blasting purposes, the wires in the insulating wad may be extended back to form
eyes or loops for the attachment of the wires from the battery.
Having now particularly described and ascertained the nature of my invention
and the manner in which the same is to be performed, I declare that what
I claim is
1st The arrangement of wires in cartridges for electric fire-arms, one being
centrally placed and the other extending through the base in the form of a ring so
that the cartridge shall when placed in a gun be always in position for proper
electrical connection with the wires of the gun, substantially as herein before
described with reference to Figs 1 and 2 of the accompanying sheet of drawings.
2nd Providing a recess in the base of the cartridge to receive the platinum link
or other electrically analogous substance for the connection of the wires and the
ignition of the powder of the charge, whereby greater convenience in charging and
recharging of the case is obtained, as hereinbefore described and illustrated at
Figs 3 and 4 of the drawings.
Dated this 9th day of December 1884