Improvements in or relating to the Construction of Ships.
Year: 1894

page_text: Date of Application, 13th Nov., 1894
Complete Specification Left, 13th Sept., 1895-Accepted, 26th Oct., 1895
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Construction of Ships.
We, RICHARD ROPER, and LEOPOLD ROPER, both of Palace Chambers,
9 Bridge Street, Westminster, in the County of London, Marine Contractors and
Engineers, do hereby declare the nature of this invention to be as follows:-
This invention has for its object improvements in the construction of ships, the
nature of which is such as to give greater stability and lightness in construction
without the use of angle iron or the like as heretofore usually the case and an
improved manner of applying armour to war ships.
In constructing a ship according to our invention we
single or a double bottom, the plates being arranged in
manner as that described in Patent No. 8612 granted to
28th day of April 1893.
provide it with either a
either case in a similar
Richard Roper on the
The longitudinal air tight divisions thus formed where the vessel is provided
with a double bottom we divide by carrying the ships bulkhead through them and
by a number of transverse division plates the edges of which are flanged so that the
flanged portion may be used in the place of angle iron to enable them to be riveted
in position.
The plate used in the construction of the sides, the bulkheads, decks, and other
portions of the ship we also flange so that the flanged portions of said plates may
be riveted together in such a manner that they stand beyond the surfaces of the
plates thus forming a stiffening, obviating the use of angle iron.
In applying armour to war vessels according to our invention we arrange this
and the backing so that said armour presents an outer concave surface.
CAT
1924
CASTLE SMITH,
Invention" Office, 54 Fleet Street, London, E.C.,
Agent for the Applicants.
CASTLE SMITH,
"Invention" Office, 54 Fleet Street, London, E.C.,
Agent for the Applicants.
Improvements in or relating to the Construction of Ships.
We, RICHARD ROPER, and LEOPOLD ROPER, both of Palace Chambers,
9 Bridge Street, Westminster, in the County of London, Marine Contractors and
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 :-
This invention has for its object such improvements in the construction of ships,
that greater stability and lightness in construction may be obtained without the
use of angle iron or the like, than has heretofore usually been the case where the
latter have been employed.
In constructing a ship according to our invention we provide it with either a
single or double bottom, the plates being arranged in either case in a similar manner
to that described in Patent No. 8612 granted to Richard Roper on the 28th day
of April 1893.
The longitudinal air space thus formed, where the vessel is provided with a

page_text: double bottom, we divide by carrying the ship's bulkhead through them and by a
number of transverse division plates, the edges of which are flanged, so that the
flanged portion may be used in the place of angle iron to enable them to be riveted
in position.
The plates used in the construction of the ship's bulkheads, decks, and other
portions, including the hull behind the armour plates in war vessels, we also flange,
so that the flanged portions of said plates may be riveted together in such manner
that they stand beyond the surfaces of the plates, thus forming a stiffening obviating
the use of angle iron.
And in order that our invention may be more fully understood and carried into
practice we will now proceed to describe the same with reference to the accom-
panying drawings, of which Fig. 1 is a transverse section; Fig. 2 a part
longitudinal section, and Fig. 3 a part plan of the inner bottom of a ship con-
structed according to our invention.
The ship has a double bottom, the plates being arranged in a similar manner to
that described in Patent No. 8612 granted to Richard Roper on the 28th day of
April 1893, so that a number of keels a are formed, and the plates 6 between each
pair of these keels, present concave outer surfaces.
The longitudinal air space c formed between the two bottoms of the vessel is
divided by carrying the longitudinal bulkheads d through the upper bottom, as
shown in Fig. 1 and by a number of transverse division plates e Fig. 2, all or a
number of which may form continuations of transverse bulkheads, or they may form
independent structures.
The plates b used in the construction of the bulkheads, decks, bottom and other
portions of the ship are flanged, as shown in Figs. 1 and 3, so that the flanged
portions may be riveted together in such a manner that they stand beyond the
surfaces of the plates, and thus form a stiffening, obviating the use of angle iron,
and permitting of the whole of the riveting being done from the outside.
Where
found desirable the bulkheads may be strengthened by the use of brackets g Fig. 2
or the like.
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.) In ships having double bottoms so constructed that a number of keels are
formed and the plates between each pair of these keels present concave outer
surfaces, the division of the air space between the two bottoms substantially as
described and illustrated in the accompanying drawings.
(2.) The construction of ships' bulkheads, decks, and other parts of plates so
flanged that the flanged portion may be riveted together in such a manner that
they will project from the surfaces of the plates substantially as and for the purpose
described and illustrated in the accompanying drawings Figs. 2 and 3.
(3.) In the construction of ships the combination with double or single bottoms
Bo constructed that a number of keels are formed and the plates between each pair
of these keels present concave outer surfaces of bulkheads, decks, and other parts
formed of plates so flanged that the flanged portions may be riveted together in
such a manner that they stand beyond the surfaces of the plates substantially as
described.
(4.) The improvements in the construction of ships substantially as described
and illustrated in the accompanying drawings.
Dated this 12th dox of Santambon 1005
"
CASTLE SMITH,
Invention" Office, 54 Fleet Street, London, E.C.,
Agent for the Applicants.