Improvements in Cartridge Cases.
Year: 1892

page_text: Date of Application, 19th Nov., 1892
Complete Specification Left, 18th Sept., 1893-Accepted, 28th Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Cartridge Cases.
I, GEORGE HOOKHAM, of Nos. 7 and 8 New Bartholomew Street, in the City
of Birmingham, Manufacturer, do hereby declare the nature of this invention to be
as follows:-
My invention relates to metallic cartridge cases in which a paper lining is
adopted to reduce the powder chamber and to protect the charge of powder from
contact with metal, and my object is to introduce the said paper lining after the
cartridge has been necked.
In carrying my invention into effect I coil a strip of paper of the required
breadth to a diameter less than that of the neck and I slip the coil into the interior
of the case through the necked part. I then expand the coil in position within the
powder chamber of the cartridge by inserting a suitable tool and cause it to fit the
walls of the said chamber. I may paste the paper coil or introduce an expanding
tool which pastes the paper to the cartridge case while expanding it, and with this
end in view I sometimes perforate the paper to allow the paste to pass through.
Instead of introducing a coil through the neck I sometimes pass through it two
or more opposing strips overlapping each other and then expand or expand and
paste the said strips or pieces within the larger powder chamber.
In this way I am enabled to pass a paper lining through the narrow neck and
securely hold it within the powder chamber by the neck.
Dated this 18th day of November 1892.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Cartridge Cases.
I, GEORGE HOOкнAм, of Nos. 7 and 8 New Bartholomew Street, in the City
of Birmingham, Manufacturer, 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 :-
My invention relates to metallic cartridge cases in which a paper lining is
adopted to reduce the powder chamber and to protect the charge of powder from
contact with metal, and my object is to introduce the said paper lining after the
cartridge has been necked.
Referring to the accompanying sheet of drawings-
Figure 1 is a plan showing a coil of paper ready to be inserted.
Figure 2 is a vertical section corresponding to Figure 1.
Figure 3 is a vertical section similar to Figure 2 but indicating holes or
perforations in the coil.
.
Figure 4 is a vertical section through a cartridge case showing the insertion of
the coil in the neck.
Figure 5 is similar to Figure 4 but the coil has been pushed into the case.
Figure 6 is a section similar to Figures 4 and 5 but having the coil expanded to
fit the case.
Figure 7 is a plan of a modification of my coil consisting of opposing curved
strips of paper ready for insertion.
Figure 8 is an external elevation corresponding to Figure 7.
Pil

page_text: In carrying my invention into effect I coil a strip of paper of the required
breadth to a diameter less than that of the neck as shown at A, Figures 1 and 2,
and I slip the coil Ar into the interior of the case through the necked part B as
shown at Figures 4 and 5. At Figure 4 the coil is shown as entering the necked
part B of the case and at Figure 5 the coil A is shown as within the larger part of
the case ready for expanding.
I then expand the coil-A in-position-within the powder chamber of the cartridge
by inserting a suitable tool and cause it to fit the walls of the said chamber. The
coil expanded to its proper position is shown at A Figure 6. I may paste the
paper coil A or introduce an expanding tool or brush which pastes the paper to
the cartridge case while expanding it, and with this end in view I sometimes
perforate the paper to allow the paste to pass through. A coil A' so perforated is
indicated at Figure 3.
Instead of introducing a coil through the neck I sometimes pass through the said
neck two or more opposing strips over-lapping each other and then expand or
expand and paste the said strips or pieces within the larger powder chamber. Such
opposing strips are shown in plan and elevation respectively at A' A³ Figures 7
and 8. The strips may be perforated as shown for the coil at Figure 3 if desired.
In this way I am enabled to pass a paper lining through the narrow neck and
securely hold it within the powder chamber by the neck.
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. The method of lining with paper a necked cartridge case by forming a paper
coil, passing it through the neck and expanding the said coil to fit the interior,
substantially as and for the purposes herein before described.
2. The method of lining with paper a necked cartridge case by forming opposing
strips, passing the said strips through the neck and expanding the said strips to fit
the interior, substantially as and for the purposes herein before described.
Dated this 16th day of August 1893.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.