Improvements in Plated Structures, as Navigable Vessels, Pontoons and other Vessels.
Year: 1894

page_text: Date of Application, 13th Apr., 1894
Complete Specification Left, 15th Aug., 1894-Accepted, 6th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in Plated Structures, as Navigable Vessels, Pontoons
and other Vessels.
We, WILLIAM STEWART, of 39 Arnold Street, Liverpool, in the County of
Lancaster, Ship Draughtsman, and GEORGE ALEXANDER HEPBURN, of 11 Redcross
Street, Liverpool, in the County of Lancaster, Consulting Engineer, do hereby
declare the nature of this invention to be as follows
:-
This invention has reference to structures comprising metallic frames and plates,
rivetted or bolted to said frames, and together. For instance, it relates to plated
structures, as ships' hulls, decks, deck-houses, bulkheads, tanks, and so forth;
pontoons caissons, liquid and gas holders or containers wherein plating is secured
to frames; and other like or analogous structures wherein plates of iron or steel or
other metal are employed in connection with frames or framework, and fastened to
them as well as together.
The invention has mainly for its object to provide improvements in plated
structures by which the weight of such structures, and also the cost of same, is
diminished.
The invention will be described, for convenience, as applied to ships' hulls.
According to this invention, the use of filling strips, usually employed between
some of the platings or strakes, of the hull and the frames, is obviated, and
without alteration of the ordinary form or construction of such frames, all the
plates being by it caused to come in contact with or against the frames. The
horizontal meeting edges of the plates which overlap each other, are turned the one
in and the other out, and the parts of the inwardly turned edges of the plate
where they come in contact with the frames, are cut away at the inside in such a
manner that the inside surface of the plate lies evenly on the frame throughout.
The plates may be rivetted or fastened together and to the frames in the usual or
any suitable way.
The invention may be applied to ships having the plating or strakes arranged
according to the "clinker "mode of building, or to the ordinary mode.
The above description of the invention as applied to the hull of a ship is suitable to
other plated parts of ships, and other plated structures having the characteristics
above referred to.
D
$1200
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicants' Patent Agents.
Improvements in Plated Structures, as Navigable Vessels, Pontoons,
and other Vessels.
We, WILLIAM STEWART, of 39. Arnold Street, Liverpool, in the County of
Lancaster, Ship Draughtsman, and GEORGE ALEXANDER HEPBURN, of 11 Redcross
Street, Liverpool, in the County of Lancaster, Consulting Engineer, do hereby
O 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 reference to structures comprising metallic frames and plates,

page_text: rivetted or bolted to said frames, and together. For instance, it relates to plated
structures, as ships' bulls, decks, deckhouses, bulkheads, tanks, and so forth;
pontoons, caissons, liquid and gas holders or containers wherein plating is secured
to frames; and other like or analogous structures wherein plates of iron or steel or
other metal are employed in connection with frames or framework, and fastened to
them as well as together.
The invention has mainly for its object to provide improvements in plated
structures by which the weight of such structures, and also the cost of same, is
diminished.
The invention will be described, for convenience, as applied to ships' hulls.
According to this invention, the use of filling strips, usually employed between
some of the platings or strakes, of the hull and the frames, is obviated, and
without alteration of the ordinary form or construction of such frames, all the
plates being by it caused to come in contact with or against the frames. The
horizontal meeting edges of the plates which overlap each other, are turned the one
in and the other out, and the parts of the inwardly turned edges of the plate where
they come in contact with the frames, are cut away at the inside in such a manner
that the inside surface of the plate lies evenly on the frame throughout. The
plates may be rivetted or fastened together and to the frames in the usual or any
Buitable way.
The invention may be applied to ships having the plating or strakes arranged
according to the "clincher" mode of building, or to the ordinary mode.
The above description of the invention as applied to the hull of a ship is suitable
to other plated parts of ships, and other plated structures, having the characteristics
above referred to.
In the drawings illustrating this invention, we shew the invention applied to an
iron or steel ship. In these drawings, Figure 1 is a cross section shewing
the invention applied to the side plating of the ship, and also to a deck, the
plating of the ship's side being of the "clincher" type. Figure is a cross
section, Figure 3 an inside elevation, and Figure 4 a sectional plan at A A
Figure 2, shewing the invention applied to a ship having plating of the usual
type or kind; Figure 5 shews the inside of plate alone, i.e, without the frames in
position.
Referring to the drawings, a are the ship's side plates, and bare the frames,
which are of ordinary construction being straight or even on their outer surface.
The plates, with longitudinal joints, as will be seen by the drawings, at their
-meeting edges overlap each other, and are turned, the one inwards, and the other
out, the parts of the inwardly turned edges where they come opposite to and in
contact with the frames are cut away, making channels c in the edges of the plates,
the channels being so cut that the surface of the plate from edge to edge at these
parts (that is, when they come opposite the frames) are even throughout and lie
evenly on the frames b; and, at the same time, admit of the inner surface of the
adjacent plate lying on the frame bar evenly from the edge of the cut away plate
to the next joint. A section of the plate taken through the cut away parts, that
is, channels c, is illustrated by the dotted lines in Figure 5. Thus, the whole set of
strakes or plates in the ship, constructed as shewn, throughout the length of the
frame come in contact with the plates; and the effects above stated are thereby
obtained.
In a clincher" built vessel, as shewn in Figure 1, each plate will have one edge
bent inwards and the other. outwards, the inwardly turned edge having the cut
away portion or channels provided in it; whilst in a vessel with the ordinary
arrangement or form of plating shewn in Figures 2, 3, 4, and 5, the different rows
of plating are differently formed and constructed; namely, the alternate straking
or rows of plating have both their edges turned outwardly and inwardly respectively,
thus these pates alone having the inwardly turned edges are provided with the cut
away portions or channels c.
The deck plating and structure is precisely similar to the side plating. The

page_text: plates in this case-
e-Figure 1-are designated d, and the deck beam e, the edges of
the plates at the joint being bent inwardly and outwardly as shewn, and the
inwardly turned edges being cut away in exactly the same manner as set forth with
reference to the side plating.
Having fully described and shewn by drawings our invention as applied to
ships, its application to other plated structures, such as those hereinbefore
specified, will be understood to be those connected with the construction of plated
structures without further description. What is claimed in respect of this
invention is:-
1. In plated structures as navigable vessels, pontoons, and other vessels, wherein
sides or other plated parts of such vessels are composed of rows or strakes of
plating connected together by lap joints, and frames or beams running at right
angles thereto, the construction wherein the overlapping edges of the plates are
bent, the one inwards and the other outwards, with the parts where the frames or
beams come cut away from the inwardly turned edge, and the side or face of the
frames or beams to which they are connected being even: substantially as and for
the purposes described.
2. The ships' construction (or the construction of other plated structures such as
specified) particularly as set forth with reference to and shewn in Figure 1, and
Figures 2, 3, 4, and 5 of the drawings.
1004
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicants' Patent Agents.