Improvements in or relating to the Generation of Steam on Ships and the like.
Year: 1894

page_text: Date of Application, 30th Jan., 1894
Complete Specification Left. 17th May, 1894-Accepted, 23rd June, 1894
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Generation of Steam on Ships
and the like.
I, WILLIAM WAGSTAFF, of 1 Hauberk Road, Battersea, Surrey, Marine
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to the generation of steam on ship-board from sea-water
for the subsequent production, by condensation, of fresh water which may be used
for drinking purposes or for making up the loss in the main boilers of steam ships,
or the steam in an uncondensed form may be used for heating the saloons or other
parts of the vessel and may then be returned to the condenser to be subsequently
used for drinking or other desired purpose.
The invention consists in arranging in the funnel, as near as practicable to its
base, one or more either horizontal or approximately horizontal tubes each closed
at one end by a removable manhole door and open to the condenser or circulating
system at the other end.
This tube constitutes in reality a small boiler and extends from one side to the
other or right across the funnel and at the end by which it is connected with the
condenser or circulating system it is at the outside of the funnel provided with a
steam dome and the usual water and steam gauges, safety valve, stop valve, and
blow-down cock; it is also provided at this same end with a removable manhole
door for scaling or cleaning purposes.
The before described apparatus may either be supplied with water by a small
donkey-pump or, when it is connected directly with the condenser, it may be
automatically supplied by means of the vacuum.
The various valves and cocks may be manipulated from the engine room by
means of suitable connections also water and steam gauges connected with the
apparatus may be provided in the engine room.
The steam from this apparatus may be introduced into the system of the engines
by supplying it to one of the valve chests or receivers say of the low-pressure
engine thus giving the advantage of supplying additional steam to that cylinder as
well as making up the loss by leakage &c.
The apparatus may be worked at pressures above or below that of the
atmosphere.
Dated this 30th day of January 1894.
COMPLETE SPECIFICATION.
Improvements in or relating to the Generation of Steam on Ships
and the like.
I, WILLIAM WAGSTAFF, of 1 Hauberk Road, Battersea Rise, Surrey, Marine
Engineer, 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 relates to the generation of steam on ship-board from sea-water
for the subsequent production, by condensation, of fresh water which may be used
for drinking purposes, or for making up the loss in the main boilers of steam-ships,
or the steam in an uncondensed form may be used for heating the saloons or other
parts of the vessel and may then be returned to the condenser to be subsequently
used for drinking or other desired purpose.

page_text: The invention as shown in the accompanying drawing consists in arranging in
the funnel A, as near as practicable to its base, one or more either horizontal or
approximately horizontal tubes B, each closed at one end B' by a removable
manhole door B and open to the condenser or circulating system at the other
end B³.
The boilers B could be set vertically in the funnel but as it is desired to obtain
the most efficient heating surface while impeding as little as possible the passage
of the heated gases up the funnel, and as the vertical arrangement would necessitate
the boilers being of considerably increased diameter to enable them to present a
sufficient heating surface, the horizontal arrangement is preferred.
This tube constitutes in reality a small boiler and extends from one side to the
other or right across the funnel A and at the end by which it is connected with the
condenser or circulating system it is at the outside of the funnel provided with a
steam dome C and the usual water gauge D, steam gauge (not shown in the
drawing) safety valve E, stop valve F, and other necessary fittings; it is also
provided at this same end with a removable manhole door H for scaling or cleaning
purposes.
The before described apparatus may be supplied with water by a small
donkey-pump or other suitable means.
The various valves and cocks as exemplified by the arrangement of the valve F
shown in the drawing may be manipulated from the engine room by means of
suitable connections also water and steam gauges as shown with regard to the
former (D) connected with the apparatus may be provided in the engine-room of
which in the drawing 1 indicates the bulkhead, to which said gauges may
conveniently be attached.
I prefer to incline the tube B in the manner shown so that the brine or sediment
may fall to the end remote from C and be blown off from time to time by opening
the cock J. A by-pass constantly open may be used to maintain the water at a
constant density.
The steam from this apparatus may be introduced into the system of the main
engines by supplying it to one of the valve chests or receivers, say that of the low-
pressure engine, thus giving the advantage of supplying additional live steam to
that cylinder as well as making up the loss by leakage &c.
The apparatus may be worked at pressures above or below that of the
atmosphere.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is;
1. The combination with the funnel of a steam boiler of one or more tubes or
boilers located therein substantially as and for the purpose described.
2. The combination with a funnel appertaining to one or more main steam
boilers of an auxiliary steam generating apparatus comprising a tube such as B
located within the funnel and a steam dome or chamber such as C located outside
the funnel substantially as described and illustrated in the accompanying
drawing.
3. The combination and arrangement of parts constituting the complete steam-
generating apparatus for application to a funnel substantially as described and
illustrated in the accompanying drawing.
4. Introducing steam from an auxiliary supply into the system of the main
engines by applying it to one of the valve chests or receivers.
1
1004
WILLIAM WAGSTAFF.
W. P. Thompson & Boult,
Agents for the Applicant.