Year: 1888

page_text: Date of Application, 5th Mar., 1888
Complete Specification Left, 5th Dec., 1888
Complete Specification Accepted, 15th Jan., 1889
We, GRAYDON POORE, of 49, Queen Victoria Street, in the City of London, Civil
Engineer, and WILLIAM CAMPER STOREY, of 13, Regent Street, in the County of
Middlesex, Naval Architect, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to provide a large store of energy for use when a
vessel is submerged without having to subject the receiver containing it to a high
pressure such as obtains when employing heated water in a manner in which it has
heretofore been proposed to employ it in the propulsion of submarine vessels by
means of steam engines.
For this purpose according to the present invention whilst the vessel is afloat on
the water, fuel of any suitable kind is employed to generate steam, and also to highly
heat a liquid of any suitable kind having at atmospheric pressure a boiling point con-
siderably higher than that of water, and the apparatus is so constructed that when the
vessel is submerged and combustion of fuel in the furnace has ceased, heat stored
in the liquid above referred to can be utilised to generate steam for the propulsion
of the vessel.
From the foregoing description it will be understood that a vessel according to our
invention is constructed with apparatus comprising a chamber or chambers to contain
water and steam, and a chamber or chambers to contain some liquid having at atmo-
spheric pressure a boiling point considerably higher than that of water: for example,
glycerine or a suitable oil; the relative arrangement being such that when the
temperature of the oil is higher than that of the water, it may be communicated to the
latter from the former. The furnace may be of any suitable construction and designed
for the combustion of either solid or liquid fuel, the construction being such as to admit
of ready extinction of fire or flame and of submersion of the vessel.

page_text: According to one arrangement, the liquid in which heat is stored for transmission to
the water can be caused to circulate through tubes in the water space, but it may be
otherwise caused to part with its heat to generate steam. This steam may be used to
propel the vessel whilst submerged by any ordinary or suitable means.
Dated this 5th day of Marah 1948
GRAYDON POORE.
W C. STOREY.
W. Lloyd Wise,
, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in or Pertaining to Vessels Constructed to Travel
under Water.
We, GRAYDON POORE of 49 Queen Victoria Street in the City of London Civil
Engineer and WILLIAM CAMPER STOREY of 13 Regent Street in the County of
Middlesex, Naval Architect 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:-
The object of this invention is to provide a large store of energy for use when a
vessel is submerged without having to subject the receiver containing it to a high
pressure such as obtains when employing heated water in a manner in which it has
heretofore been proposed to employ it in the propulsion of submarine vessels by
means of steam engines.
For this purpose according to the present invention whilst the vessel is afloat on
the water fuel of any suitable kind is employed to generate steam and also to
highly heat a liquid of any suitable kind having at atmospheric pressure a boiling
point considerably higher than that of water and the apparatus is so constructed
that when the vessel is submerged and combustion of fuel in the furnace has ceased,
heat stored in the liquid above referred to can be utilized to generate steam for the
propulsion of the vessel.
From the foregoing description it will be understood that a vessel according to
our invention is constructed with apparatus comprising a chamber or chambers to
contain water and steam and a chamber or chambers to contain some liquid having
at atmospheric pressure a boiling point considerably higher than that of water:

page_text: for example, glycerine or a suitable oil; the relative arrangement being such that
when the temperature of the oil is higher than that of the water, heat may be com-
municated to the latter from the former.
The furnace may be of any suitable construction and designed for the combustion of
either solid or liquid fuel the construction being such as to admit of ready extinction of
fire or flame and of submersion of the vessel.
According to one arrangement the liquid in which heat is stored for transmission
to the water can be caused to circulate through tubes in the water space but it may
be otherwise caused to part with the heat to generate steam. This steam may be used
to propel the vessel whilst submerged by any ordinary or suitable means.
In the accompanying sheet of drawings there is illustrated a suitable arrange-
ment, according to this invention, for providing a store of energy for use in a
submerged boat.
A is a steam boiler of any ordinary or suitable description. It is designed to
supply steam to the engine through the pipe J when the boat is moving over the
surface of the water. When the boat is about to be submerged the valve K is closed,
and communication between the boiler and the engine is cut off. At the same time
entry of the Sea to the fire box, and through the fire box to the interior of the boat
is prevented by closing of the funnel valve A' from the exterior of the boat.
When the boat is submerged steam to work the engine is generated in the heater E,
by the circulation therethrough of the heated liquid contained in the vessel C. This
liquid is heated, previous to the submergence of the vessel, by means of steam from
the boiler A. This steam is first superheated in the coil B in the smoke box, and is
then made to circulate through the coil D in the vessel C, and is finally discharged
into the condenser or overboard. In this way the liquid in the vessel is raised to a
high temperature, and becomes a reservoir of heat which is available for generating
steam. When it is required for this purpose it is circulated by the pump F through
the tubes of the vessel E, which contains water, and the steam produced is conducted
by the pipe J to the engine, the valve L being first opened.
There are many liquids and solutions which are suitable for storing heat
according to this invention in a vessel constructed to travel under water: among
these oil, and a solution of chloride of lime in glycerine are favorable examples.
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 is
claimed in or pertaining to vessels constructed to travel under water, is :—
1. Storing heat in liquid the boiling point of which at atmospheric pressure is con-
siderably above that of water and afterwards utilising the heat as stored substantially
in the manner described to raise steam during the time the vessel is under water.
2. The use in the manner and for the purpose specified of super heated steam in
conjunction with a liquid the boiling point of which at atmospheric pressure is con-
siderably above that of water.
3. The combination of the steam boiler A, the superheating coil B, the vessel C
containing a liquid having a boiling point at atmospheric pressure considerably above
that of water, the coil D and the evaporating vessel E, substantially as described for
the purpose specified.
Dated this 5th day of December 1888.
GRAYDON POORE.
WILLIAM CAMPER STOREY.
W. Lloyd Wise,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicants.