MENTS IN THE CONSTRUCTION OF STEAM-SHIPS AND SAILING VESSELS
Year: 1884

page_text: I, WILLIAM BRUCE THOMPSON, of Dundee in the County of Forfar, North
Britain, Engineer do hereby declare the nature of the said Invention for "IMPROVE
MENTS IN THE CONSTRUCTION OF STEAM-SHIPS AND SAILING VESSELS" to be as
follows:-
This Invention which relates to improvements in the construction of Steam
Ships has for its object to cool the engine and boiler rooms of such ships as well
as the holds and bunkers which surround the same. This object is effected by
constructing the bulkheads at the ends of the Engine and boiler rooms as a double
casing or double bulkhead, that is to say, enclosing a space between the two casings
or bulkheads. The sides of the Engine and boiler rooms are also similarly formed,
so that cold sea water is circulated, by means of a pump driven by the Engine,
through the water spaces thus formed around the engine and boiler rooms and
which cold sea water by absorbing the radiated heat therefrom lowers the tem-
perature of the said engine and boiler rooms, holds, bunkers and cabins whilst such
double casings may also be continued in one or more longitudinal divisions length-
wise or a series of these may be employed transversely throughout the ship so as to
have a general cooling effect of the entire ship's interior.-Besides having the
cooling effect herein-before described, the aforesaid spaces provide for their being
used for water ballasting a ship, and the double bulkheads or casings furthermore
stiffen the vessel.-When the improvements aforesaid are applied to fishing ships
or steam trawlers they have the effect of preserving the dead fish longer fresh.
When the said improvements are applied to sailing vessels, a special engine
boiler and circulating pump or pumps is or are employed, or the engine of fresh
water making apparatus now commonly used on board Sailing Ships may be used
to drive the said circulating pump or pumps.
11 1 1001
J. H. JOHNSON, DAY & JOHNSON,
Petitioner's Agents,
115, St. Vincent Street, Glasgow.

page_text: "
COMPLETE SPECIFICATION.
I, WILLIAM BRUCE THOMPSON, of Dundee, in the County of Forfar, North
Britain, Engineer, do hereby declare the nature of my said invention for IMPROVE-
MENTS IN THE CONSTRUCTION OF STEAM-SHIPS AND SAILING VESSELS and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
My Invention, which relates to improvements in the construction of steam-ships
has for its object to cool the engine and boiler rooms of such ships, as well as the
holds and bunkers which surround the same.-This object is effected by con-
structing the bulkheads at the ends of the engine and boiler rooms each as a
double casing or double bulkhead, that is to say, enclosing a space between the
two- casings or bulkheads.-The sides of the Engine and boiler rooms are also
similarly formed, so that cold sea water is circulated, by means of a pump driven
by the Engine, through the water spaces thus formed around the engine and boiler
rooms, and which cold sea water by absorbing the radiated heat from the said
engine and boiler rooms lowers the temperature thereof, and of the holds, bunkers
and cabins, whilst such double casings may also be continued in one or more
longitudinal divisions lengthwise or a series of these may be employed transversely
throughout the ship so as to have a general cooling effect of the entire ship's
interior. Besides having the cooling effect hereinbefore described, the aforesaid
spaces provide for their being used for water ballasting a ship, and the double
bulkheads or casings furthermore stiffen the vessel.-When the improvements
aforesaid are applied to fishing ships or steam trawlers they have the effect of
preserving the dead fish longer fresh.
When the said improvements are applied to sailing vessels, a special engine,
boiler and circulating pump or pumps is or are employed, or the engine of fresh
water making apparatus now commonly used on board sailing ships may be used
to drive the said circulating pump or pumps.
In order that my said Invention may be most fully understood and readily
carried into effect, I will proceed to describe the drawings hereunto annexed.
Figure 1, is a longitudinal section through the engine and boiler rooms of a
steam vessel provided with cooling apparatus constructed according to and con-
stituting my present Invention.
Figure 2, (Sheet 2) is a transverse section through the same.
Figure 3, (Sheet 1,) and Figure 4, (Sheet 2,) are respectively horizontal sections
through the longitudinal and transverse bulkheads or water casings constructed
according to and constituting my present Invention.
Figure 5, is a longitudinal section through a Steam Trawler representing the
engine and boiler rooms thereof as provided with the transverse cooling bulk-
heads or water casings constructed according to and constituting my present
Invention.
In carrying out my present Improvements, I construct the bulkheads at the ends
of the engine and boiler rooms as shewn at Figure 5, as applied to a steam Trawler,
each as a double bulkhead or water casing. As represented on an enlarged scale
at Figures 1, and 4, of the annexed drawings, the plates or sides a, of these water
containing bulkheads, are secured by angle irons b, or by other equivalent means
to the deck c, the kelson d, or a part adjacent thereto, and to the sides e, (Figures 2,

page_text: and 4,) of the vessel. The plates or sides a, are practically secured against
alteration of form and are otherwise rigidly stayed by the plates f, which are
secured between the same by angle irons g, or their equivalents, and the said
plates are further strengthened by the angle bars o, vertically secured thereto (see
Figure 4.) These plates f, admit of the free circulation of water through the
orifices h, formed therein and through the openings or spaces i, formed between
their edges and the upper and lower sides of the bulkheads.
The longitudinal bulkheads or water casings represented in elevation, transverse
section, and horizontal section respectively at Figures 1, 2, and 3, are those
which constitute the sides of the engine and boiler room, and are formed by
the plates, which are secured by angle irons b, to the underside of the deck c,
and to the flooring of the said engine and boiler rooms or to any other con-
venient part or parts. The edges of these longitudinal bulkheads or water casings
are preferably closed by the bars k, rivetted or otherwise secured between the
plates j, and the said bulkheads or water casings are further strengthened by
angle irons o, and bars l, the latter of which are secured between the plates j,
by rivets or their equivalents.-These bars l, as shewn more particularly in dotted
lines at Figure 1, allow the water to pass through openings or spaces at the respec-
tively opposite ends thereof, and thereby cause the water pumped or otherwise
drawn from the sea into and through the inlet m, to flow in the direction or
directions indicated by the arrows, until it leaves the bulkhead through the
outlet n, from which it is returned through pipes (not represented upon the
annexed drawings) into the sea, or other surrounding water.-The transverse
water-containing-bulkheads are supplied with water in a manner analogous to that
herein last described, the same being pumped from the sea or other surrounding
water into the said bulkheads and returned after having passed therethrough.
At Figure 2, is indicated the position of the boiler relatively with that of tho
longitudinal bulkheads or water casings, the boiler end there being represented
at A, and the said bulkheads at B, and the spaces C, are those which constitute tho
coal bunkers.
Water-containing bulkheads such as I have herein before described and shewn
upon the annexed drawings, may be distributed about steam or sailing vessels in
such manner as to have a general cooling effect upon the entire ships' interiors, or
any particular parts, such as holds, bunkers or cabins, independent of other such
parts thereof may be so cooled, and when applied to sailing vessels a special engine,
boiler and circulating pump or pumps, may be employed for pumping water
through the water-containing bulkheads, or the engine now commonly used for
fresh-water-making may be employed to operate a pump or pumps for this
purpose.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is
The improvements in the construction of steam ships and sailing vessels whereby
the interiors of such vessels either wholly or in parts collectively or independently
are cooled all operating substantially in the manner hereinbefore set forth with
reference to the annexed drawings, that is to say, by surrounding the parts from
which heat has to be absorbed with hollow longitudinal and transverse bulkheads
or either or both of such bulkheads, through which water is circulated.
.:ניר
LL
IL 1
1007
J. H. JOHNSON, DAY & JOHNSON,
Applicant's Agents.