Improved Schrapnel-projectile
Year: 1899

page_text: Date of Application, 13th Dec., 1899-Accepted, 13th Jan., 1900
COMPLETE SPECIFICATION.
Improved Schrapnel-projectile,
I, GEORGES ROTH, Ammunition Manufacturer, of No. 50, Rennweg, Vienna,
Austria, do hereby declare the nature of my said invention and in what manner
the same is to be performed to be particularly described and ascertained in
and by the following statement:-
The casing of schrapnel-projectiles is, as is well known, made strong enough,
at the part containing the bursting charge, to withstand the explosion so that
this part of the casing remains unbroken when the explosion takes place.
The manufacture of these thick walled casings presents many difficulties
whilst the material of such thick walls cannot be improved by drawing to the
same extent as it is in the case of thin walls.
According to the present invention, the required thickness of the casing at
the part of the projectile containing the bursting charge is attained by fitting
a series of shells, one within the other, at this part and thus producing a com-
posite wall. The material of the thin walled shells thus employed, is greatly
improved and rendered more tough and elastic by drawing, so that the quality
of the whole composite shell is much superior to what it would be if a single
wall were employed.
In order to render the present specification easily intelligible reference is had
to the accompanying drawing which represents a part sectional elevation of the
part of a schrapnel showing the chamber for the bursting charge.
The projectile is provided with the ordinary guide band F and the thickness
of the walls of the chamber containing the bursting charge which is equal
to A B is attained by arranging a series of shells b and c within the exterior
shell a.
K indicates the chamber containing the bursting charge.
The materials of which the shells a b and c are made may be of equal strength
or they may vary in strength.
It is advantageous to allow a space to remain between the various shells
which should be large enough to allow the shells to stretch or expand and thus
close up one against the other when the shell explodes, without however bursting.
Any suitable number of shells may be fitted one within the other, the number
being regulated by the strength and thickness of the single shells.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what
I claim is:-
1: A schrapnel-projectile, having one or more shells fitted one within the
other to attain the necessary strength for the chamber containing the bursting
charge substantially as described.
2: A schrapnel-projectile having one or more shells fitted one within the other

page_text: to form the walls of the chamber containing the bursting charge and having
spaces (z z) left between the walls of the exterior shell and the interior shells
substantially as described.
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and
23, Cross Street, Manchester, Agents.
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and
23, Cross Street, Manchester, Agents.