Improvements in Cartridge Cases
Year: 1892

page_text: Date of Application, 16th Feb., 1892
Complete Specification Left, 16th Nov., 1892-Accepted, 4th Feb., 1893
PROVISIONAL DEVIFICATION.
Improvements in Cartridge Cases,
_MARTYN NOEL RIDLEY, and ARTHUR SPENCE Moss, 28 Victoria Street,
Westminster, Civil Engineers, do hereby declare the nature of this invention to be
as follows:-
To provide metal & other cartridges that will be perfectly waterproof under any
circumstances so long as the casing is intact.
At the lower end of the cartridge a screw cap is provided somewhat smaller than
the casing so that when screwed on the cap & casing shall be flush externally.
The casing to receive the cap shall be contracted so as to allow the cap to go over
it flush, as mentioned above, & shall be of stiffer or thicker material to prevent
distortion, care being taken that there shall be no angle or corner at the commence-
ment of the contraction. The detonator end of the cartridge shall be provided with
an inner sheath to exactly fit the detonator, so that the latter shall be placed in
position without coming into direct contact with the explosive or without removing
any portion of the casing. This inner sheath shall be placed flush with the top of
the cartridge so as to save space in packing & charging, or it may be so placed as
to project beyond the top of the cartridge, a screw cap, plug, or other cover may be
placed on or in this sheath to prevent any dirt or other material from getting into
it, & to preserve its form whilst the cartridge is being filled. Instead of this inner
sheath the top or knob of the cartridge may be fitted with a screw or other cap to
be removed when it is required to insert the detonator. The detonator to have a
screw or other cap forming a part of it, which, in inserting the detonator, can be
screwed or otherwise secured to the knob of the cartridge so that the whole is made
perfectly watertight.
Where non-metallic cartridges are used, the detonator-sheath above described
shall form part of, or be connected to, a metal cap forming the head of the cartridge
into which metallic cap or head the non-metallic cylinder of the cartridge shall be
fitted.
In place of the lower screw cap the cartridge may be closed or sealed by inserting
into the case above the explosive a shallow dish-shaped stopper made to fit exactly
the cartridge case. The upper edge of this stopper being placed flush with the
edge of the cartridge case when the latter is full, the two thicknesses of material
shall be turned over together after the manner of sporting cartridges, with or
without the insertion of any cementing or waterproofing material between them.
Dated this 16th day of February 1892.
M. NOEL RIDLEY.
A. SPENCE MOSS.

page_text: Improvements in Cartridge Cases.
MARTYN NOEL RIDLEY, and Arthur Spence Moss-BLUNDELL (formerly
known as Arthur Spence Moss) 28 Victoria Street, Westminster Civil Engineers
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:-
To provide metal and other cartridges that will be perfectly waterproof under
any circumstances so long as the cartridge casing is intact.
At the open end of the cartridge a screw cap is provided somewhat smaller than
the casing so that when screwed on the cap & casing shall be flush externally. The
casing to receive the rap shall be contracted so as to allow the cap to go over it
flush, as mentioned above, & shall be of stiffer or thicker material to prevent
distortion, care being taken that there shall be no angle or corner at the commence-
ment of the contraction.
In place of the screw cap the cartridge may be closed or sealed by inserting into
the case above the explosive a shallow dish-shaped stopper (B in figs.) slightly
tapered & made to fit exactly the cartridge case. The upper edge of this stopper
being placed flush with the edge of the cartridge case when the latter is full, the
two thicknesses of material shall be turned over together in one or more folds, after
the manner of sporting cartridges, with or without the insertion of any cementing,
sealing or water-proofing material between them.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. The reduction of air cushioning in loading several cartridges end to end in one
blasting hole.
2. The reduction of waste space in packing.
3. A joint at the filling end of such a description that the cartridge tube cannot
be pressed away from the stopper, or the stopper from the cartridge tube.
4. A joint at the filling end that can be closed by hand, by an unskilled labourer;
& which, when once closed at the factory, cannot be tampered with afterwards.
Dated this 15th day of November 1892.
M. NOEL RIDLEY.
A. S. MOSS-BLUNDELL.