Improvements in and connected with Steam Generators or Boilers.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in and connected with Steam Generators or Boilers.
We, FRANCIS IGNATIUS RICARDE-SEAVER, of 16, Grafton Street, Bond Street,
London, F.R.S.Edin., and EMILE GUITTON, of 97, Shaftesbury Avenue, London,
Civil Engineer, do hereby declare the nature of this invention to be as
follows:
This invention relates to the construction and operation of steam generators
and their connected parts, the invention being particularly well adapted for use
upon motor cars, launches or in other places where a ready and rapid means
for generating power is desired.
According to this invention it is proposed that the water to be converted into
steam should be supplied to the heating or vapourizing surface in the form of
fine jets or sprays which will be converted into steam practically as rapidly as
it is fed. To secure this end it is proposed that a pump capable of being worked
by hand but after being started operated by the motor, should deliver to a series
of spraying valves the required quantity of water, the valves being placed in
the lower ends of generating tubes opening into a steam drum at the top and
into a water drum or ring at the bottom while around such tubes the heat and
flame passes part of it being also imparted to the steam drum or chest. The
generating tubes are of very small sectional area or are provided with an internal
concentric plug or tube closed at the bottom the object being to compel the
water to come into contact with the heated surface of the tube.
The pump is preferably provided with a safety or return valve in order that
should an excess of water be forced by the pump such excess will return at once
to the reservoir to which also the steam or water of condensation may also be
conducted from the motor either direct or through a suitable condenser. It is
judged that an advantageous method of assembling the parts will be to have
the pump supply water to an annular water ring from which rise the generating
tubes each being fitted with a ball or other spraying valve at the bottom and
opening at the top into a steam drum or chest the space between the tubes at
the top being slightly recessed or dished so as to catch a small quantity of water
due to the condensation of the steam in the chest when the heat is cut off such
water being rapidly converted into steam when heat is applied and being
sufficient to start the pump.
The tubes and drum are preferably surrounded by a suitable casing to prevent
undue radiation of heat and to supply a suitable uptake for the gases of com-
bustion. The heat or flame may be supplied by a gas or oil burner or by direct
firing as may be desired.

page_text: Improvements in and connected with Steam Generators or Boilers,
We, FRANCIS IGNATIUS RICARDE-SEAVER, of 16, Grafton Street, Bond Street,
London, F.R.S.Edin., and EMILE GUITTON, of 97, Shaftesbury Avenue, London,
Civil 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 construction and operation of steam generators
and their connected parts, the invention being particularly well adapted for use
upon motor cars, launches or in other places where a ready and rapid micans
for generating power is desired.
According to this invention it is proposed that the water to be converted into
steam should be supplied to the heating or vapourizing surface in the form of
fine jets or sprays which will be converted into steam practically as rapidly as
it is fed. To secure this end it is proposed that a pump capable of being worked
by hand but after being started operated by the motor, should deliver to a series
of spraying valves the required quantity of water, the valves being placed in
the lower ends of generating tubes opening into a steam drum or chest at the
top and into a water drum or ring at the bottom while around such tubes the
heat and flame passes part of it being also imparted to the steam drum or chest.
The generating tubes are of very small sectional area or are provided with an
internal concentric plug or tube closed at the bottom the object being to compel
the water to come into contact with the heated surface of the tube.
The pump is preferably provided with a safety or return valve in order that
should an excess of water be forced by the pump such excess will return at once
to the reservoir to which also the steam or water of condensation may be
conducted from the motor either direct or through a suitable condenser. It is
judged that an advantageous method of assembling the parts will be to have
the pump supply water to an annular water ring from which rise the generating
tubes each being fitted with a ball or other spraving valve at the bottom and
opening at the top into a steam drum or chest the space between the tubes at
the top being slightly recessed or dished so as to catch a small quantity of water
due to the condensation of the steam in the chest when the heat is cut off such
water being rapidly converted into steam when heat is applied and being
sufficient to start the pump.
The tubes and drum are preferably surrounded by a suitable casing to prevent
undue radiation of heat and to supply a suitable uptake for the gases of com-
bustion. The heat or flame may be supplied by a gas or oil burner or by direct
firing as may be desired.
In order that the invention may be fully understood reference is made to the
accompanying drawings in which
Fig. 1 is a side elevation partly in section showing the generator and some of
the connected parts.
Fig. 2 is a plan view also partly in section, and
Fig. 3 is a sectional elevation on a larger scale of the water reservoir, pump
and some of the connected parts.
As the result of experiment it has been found that with a small size generator
it is at times easier to get the water delivered in the desired spray form if a
certain amount of air be also injected into the generator with such water and as
this construction of apparatus has a few additional parts not required when water
only is injected, the additional air feeding and delivery pipes are shown in the

page_text: drawings it being understood that they may be entirely omitted when water only
is sprayed into the generator.
As shown in the drawings the water supply is contained in tank 1 into which
extends pipe 2 supplied with a suitable check valve 3. The water is drawn up
from tank 1 by pump piston 4 which on its down stroke forces such water past
check valve 5 through safety chamber 6 and pipe 7 to mixing or combining
chamber 8 where it meets the air entering from air pump 9 by pipe 10 after
which the combined air and water passes through check valve 11 to pipe 12 into
the annular space 13 and passes thence through nozzle 14 out under ball valve 15
into the space 16 between the outer tube 17 and the inner closed tube or plug 18
and is converted into steam or combined steam and expanded air owing to the
heat imparted to the tubes 17 by the flame and gases of combustion here shown
as generated by an atmospheric burner 19. The steam and air hereinafter called
steam pass up space 16 to steam chest 20 and thence by outlet 21 to the motor
or other point as desired. Three or more points 22 on the bottom of tube or
plug 18 are shown as bent outwards so as to hold such tube or plug central,
while the top may be similarly supplied or be dished outwards so as to form a
loose fit in top of tubes 17 in which case the steam pressure between the tubes
will increase beyond that in the steam chest 20 and cause the plugs to rise
slightly until the pressure is equalized.
The products of combustion pass around and between the tubes 17 into the
jacket 23 and thence to the uptake 24.
Any condensation of the steam in chest 20 will collect in the recess 25 at
bottom of same or in tube 18 or between it and tube 17 and this will generally
be sufficient to generate enough steam to start the working of the pumps which
would be effected in any of the usual ways.
Cocks or valves 26 and 27 are placed upon the water and air supply pipes so
that the proportions supplied may be regulated while if a substantial excess of
water should be for any reason pumped it will raise valve 28 in chamber 6 and
pass back to tank 1 by pipe 29.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
-
1. In steam generators supplying the water to the vapourizing surface in the
form of fine jets or sprays substantially as set forth.
2. In steam generators the combination of spraying valves for the delivery
of the water with a water ring or chamber, generating tubes and a steam chest,
all substantially as described.
3. In combination with steam generators a supply pump and safety or return
chamber so arranged that any excess of water pumped will be returned to the
reservoir substantially as described.
4. The improved steam generator and supply pump for same constructed sub-
stantially as hereinbefore described and as illustrated in the accompanying
drawings.
PHILIP M. JUSTICE,
55, Chancery Lane, London, Chartered Patent Agent.