Improvements in or relating to Cartridge Cases for Quick Firing and other Guns.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Cartridge Cases for Quick Firing and
other Guns.
1, WILLIAM FREDERICK BAYLISS of 61, Wordsworth Road Small Heath, near
Birmingham, in the County of Warwick, Machinist, do hereby declare the nature
of this Invention to be as follows:-
Hitherto, the lid that is placed in the mouth of the Cartridge fully charged,
has been held in place by three or more "Notched Tongues," cut at equal distances
apart, round the mouth of the Cartridge Case, and then turned down on the lid.
By this method, the metal at the base of the Notched Tongues so turned down,
considerably distorts the outside of the Cartridge Case, and causes escape of Gas.
My improvements prevent the aforesaid distortion; and I accomplish the same
in the following manner:-
I make the Notched Tongues in the usual way, but instead of allowing the base
of the Notched Tongue to retain its full thickness, I form an Indent or Groove,
at, or near the base of said Tongue; which reduces the thickness of Metal at that
point. It follows that the Metal where Indented or Grooved being so much thinner
than the walls of the Cartridge Case, will admit of the Tongue being turned down
without causing any distortion or bending of the Cartridge Case, and so prevents
escape of Gas.
Dotad this 11th day of November 189
EDWD. J. PAYNE & SON.
Warwick Chambers, 104 Colmore Row, Birmingham,
Patent Agents for the Applicant.
Improvements in or relating to Cartridge Cases for Quick Firing and
other Guns.
!, WILLIAM FREDERICK BAYLISS of 61, Wordsworth Road, Small Heath near
Birmingham in the County of Warwick, Machinist, 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, reference being had
to the Drawings accompanying this Specification and to the several Figures and
Letters marked thereon:-
Figure 1. Represents in Plan an End view of a Cartridge Case shewing part of
the cover only (for better illustration) in position in said case.
Figure 2. Represents a part vertical Section of same.

page_text: Figure 3. Represents Sections of the circumference of the metal case shewing
notched tongue upon the edge of same.
Figure 4. Represents a Section of the case shewing side view of same.
Figure 5. Represents Sectional details shewing notched tongue.
Figures 6, 7 and 8 are similar views shewing a modification of the notched
tongue.
Figures 9, 10 and 11 shew Sections of a metal Cartridge Case according to the
old method of forming the Tongues.
Hitherto the lid or cover usually containing a lubricant that is placed in the
mouth of the Cartridge Case has been secured in position by means of three or
more "notched Tongues" as at A. Figures 9, 10 and 11 cut at equal distances
apart round the edge of the mouth of the cartridge case B. The lid being placed
in the said mouth of the Cartridge Case and the notched Tongues A bent down into
corresponding notches, or spaces. formed in the lid. This bending down of the
said notched Tongues" causes considerable distortion of the metal at the mouth
of the case as seen at B' by reason of the Tongues being of the same thickness of
metal at the point where they are bent over as the Case so that when the Cartridge
is fired the gas is allowed to escape and get between the body or walls of the
Cartridge Case and the chamber of the gun.
Now to obviate this defect my improvements are designed which prevents the
distortion of the metal at the mouth of the case and I accomplish this result in
the following manner.
I form the "notched Tongues" A round mouth of the Cartridge Case B at
equal distances apart in the circumferential edge of same, in precisely the same
manner as hitherto but instead of allowing the said notched Tongues A to retain
their full thickness of metal, particularly at the base of same I considerably reduce
the thickness of metal at that point by either indenting, grooving, cuttering or
otherwise as at C in the direction of the circumference of the mouth of the case,
laterally. Either upon the inside or outside of same.
The mouth of the Cartridge Case is annealed at this stage, which renders the
"notched Tongues" particularly pliable for the bending over process. I then
place the said case in suitable tools which slightly hardens the metal at and
immediately round the base of the notched Tongues A.
It follows that the notched Tongues A being thinner than the body or walls of
the Cartridge Case B and somewhat softer than the metal at and immediately
round the base of the notched Tongues will admit of their being turned or bent
down on to the lid D with comparative ease and without bending or distorting the
metal of the Cartridge Case at the base of the notched Tongue as aforesaid. This
method prevents escape of gas caused through distortion.
Figures 1 to 8 shew two methods of forming the notched Tongues according to
my Invention, the result being practically the same in either case, a slight devia-
tion will be seen in the notching or thinning of the Tongue A.
Having now particularly described and ascertained the object and nature of this
my Invention and in what manner the same is to be performed I declare that what
I claim is:
Firstly. The herein described improvements in or relating to Cartridge Cases
for quick firing and other guns consisting of the method of forming the notched
Tongues at the mouth of said Cartridge Case by indenting, grooving, cuttering
or otherwise forming the base of said Tongues inside or outside of same to admit
cf their being easily turned or bent over in order to secure the cover in the mouth
of said Cartridge Case as set forth and illustrated in the Drawings.
Secondly. In Cartridge Cases for quick firing and other guns, the method of
forming the notched Tongues at the mouth of said Cartridge Cases, by indenting,
grooving, cuttering or otherwise forming the base of said Tongues inside or out-
side so as to reduce the thickness of metal at that point or by reducing said Tongues
to a thinner gauge of metal than that composing the body or walls of said Cartridge

page_text: Case in combination with the method of annealing the mouth of said Case to render
pliable said Tongues and the method of hardening the metal at and immediately
round the base of said tongues in manner as described and illustrated in the
Drawings.
Dated L 101 1
100%
EDWD. J. PAYNE & SON.
Warwick Chambers, 104 Colmore Row, Birmingham,
Patent Agents for the Applicant.