Improvements in the Method of Casting and Constructing Ordnance, applicable also to other Articles.
Year: 1889

page_text: Date of Application, 5th Dec., 1889
Complete Specification Left, 22nd Aug., 1890-Accepted, 29th Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in the Method of Casting and Constructing Ordnance,
applicable also to other Articles.
I, JOSEPH ELTON BOTT, of Eyam, in the County of Derby, Metallurgist, do
hereby declare the nature of this invention to be as follows:-
My invention relates to the manufacture of articles having a tube or bush or other
part of one kind or quality of metal or alloy, onto which is cast a jacket or exterior
or other part of another kind or quality of metal or alloy.
In the manufacture of ordnance, my invention consists in providing a barrel or
tube of steel of suitable temper, and after plating the exterior of the said barrel or
tube with nickel or aluminium or other slowly oxidizable material, to use the said
plated barrel or tube as a core, and then cast a jacket of mild tough steel or aluminium
bronze or other suitable metal round the said tube or barrel, so as to gain the
longitudinal strength of the tube in conjunction with the resisting power of a
suitable cast metal jacket and by thus casting on the jacket over the whole of the
tube, the rate of cooling is regulated and even, according to the proportional
thickness of the cast jacket, thus preventing the dangerous strains incidental to the
ordinary method of shrinking on the tubes, as is the practice with built
in addition to which the cast jacket becomes intimately combined, connected or welded
ordnance
up
on to the core.
This method is also applicable to casting (the almost unworkable) manganese steel
onto soft metal bushes, which can thus be bored for shafting, whereby the full
advantages of manganese steel can be obtained, especially in such articles as gear
and other wheels, and articles requiring boring, etc. and to casting on the nose to the
wrought iron or steel shells of torpedoes and for other like purposes.
Dated December 5th 1889
JOSEPH ELTON BOTT.
By Harris & Mills,
23, Southampton Buildings, London, Agents.
COMPLETE SPECIFICATION.
Improvements in the Method of Casting and Constructing Ordnance,
applicable also to other Articles.
I, JOSEPH ELTON BOTT of Eyam, in the County of Derby, Metallurgist, 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 the manufacture of articles having a tube or bush or other
part, of one kind or quality of metal or alloy, on to which is cast a jacket or
exterior or other part of another kind or quality of metal or alloy.
In the manufacture of ordnance according to my invention, I provide a barrel or
tube of steel of suitable temper, and after cleaning or pickling the same, I plate or
coat the exterior of the said barrel or tube, by electricity or otherwise, with nickel
or aluminium, or other slowly oxidizable metal or alloy, and use the said plated
barrel or tube as a core, which, after having preferably been heated to a welding
heat but which may be used at other temperatures, is placed in a suitable mould and
a jacket of mild tough steel, or aiuminium bronze, or other suitable metal or alloy is
cast round the said barrel or tube, so as to gain the longitudinal strength of the tube
in conjunction with the resisting power of a suitable cast metal jacket. By thus
casting on the jacket over the whole of the tube the rate of cooling is regulated and
[Price 8d.]

page_text: even, according to the proportional thickness of the cast jacket, thus preventing the
dangerous strains incidental to the ordinary method of shrinking on the tubes, as is
the practice in the manufacture of some classes of built up ordnance, in addition to
which, in consequence of applying a coating of nickel or other slowly oxidizable
metal or alloy to the internal tube or core; the latter when heated to a welding heat,
is protected against oxidization, and the cast jacket becomes consequently intimately
combined with, or welded on to the core.
This method of working is also applicable to casting (the almost unworkable)
manganese steel on to soft metal bushes, which can thus be bored for shafting,
whereby the full advantages of manganese steel can be obtained, especially in such
articles as gear and other wheels, and articles requiring boring &c.
The invention is also applicable to casting on the nose to the wrought iron or steel
shells of torpedoes, and for other purposes when it is desirable to make a casting on'
to an already formed metal portion so as to secure the weld or join being firm and
strong.
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 manufacture of ordnance and other articles, by, 1st, preparing a tube, bush,
or other part, of one kind or quality of metal or alloy, 2nd coating or plating the
same, by electricity or other means, with nickel, aluminium, or other slowly oxidizable]
metal or alloy, 3rd heating the same to a welding heat and 4th casting thereon a
jacket, exterior, or other part, of another kind or quality of metal substantially as
herein described.
2. The manufacture of ordnance and other articles by 1st preparing a tube, bush,
or other part, of one kind or quality of metal or alloy, 2nd coating or plating the
same by electricity or other means, with nickel, aluminium, or other slowly oxidizable
metal or alloy, 3rd casting thereon a jacket, exterior or other part, of another kind
or quality of metal substantially as herein described.
Dated Angust 00nd 1900
Dated Augus
naust 99nd 1800
J. ELTON BOTT.
By Harris & Mills,
23, Southampton Buildings, London, Agents.