Year: 1899

page_text: Date of Application, 7th Mar., 1899
Complete Specification Left, 21st Nov., 1899-Accepted, 7th Mar., 1900
A communication from CHARLES ADOLPHE ROSIER, of 3, Rue Salneuve, Paris,
in the Republic of France, Engineer.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,.
Chartered Patent Agent, do hereby declare the nature of this invention to be as
follows:-
This invention relates to a steam generating apparatus of the class of multi-
tubular and capillary generators, the apparatus being capable of generating
instantaneously, dry steam at a high pressure, and a furnace burning hydro-
carbons forming its sole source of heat in order to obtain in the smallest pos-
sible space a storage of very considerable dynamic power for the purpose of
either a stationary motor, or of a traction motor on rails or roads, on rivers,
lakes or the sea, the apparatus being easily adaptible for all such purposes.
The apparatus therefore, consists of two principal parts: the generator of dry
steam, and the furnace for burning hydrocarbon.
The object of the apparatus is to rapidly produce dry steam under very high
pressure. The apparatus may be provided with an expansion chamber, or act.
directly, without any intermediate chamber, in which case the apparatus is free
from any danger of explosion: inasmuch as the quantity of steam generated is
in proportion to the quantity of water injected into the multitubular and capil-
lary system of the apparatus, which is subject to the intense heat produced by
the burners of the hydrocarbon furnace which produce white, expanding, bril-
liant flames in the middle of the furnace. The flames, as already stated, are
white and dazzling and not blue, the latter not being at all adaptable where an
intense and radiating heat is required. The combustion being perfect, the
apparatus is a smoke consuming furnace, such as, as far as we know, does not
exist.
The apparatus comprises a multitubular and capillary steam generator heated
by a hydrocarbon furnace provided with adjustable burners. The generator
consists of two concentric tubes of unequal length preferably conveniently in-
clined, the ends being united two and two, by special fitting devices forming:-
1. An exterior heating surface;
2. An interior heating surface:
3. An annular, capillary space between the two tubes, for the purpose of the
instantaneous production of dry steam without danger of explosion. These
tubes are mounted in separate batteries, vertically, or horizontally as required,
and being provided with taps at the lower ends for the admission of water, and
at the upper ends for the emission of the dry steam generated, so that it is
possible in case of an accident arising from any cause, to shut off any battery
of steam generating elements, that may have been partially or totally destroyed
or rendered useless by said accident.
The steam generator is heated by a furnace burning hydrocarbons, or heavy
oils of such special construction, that the flames produced are white, bright,

page_text: and spreading for the purpose of obtaining a source of intense and durable heat
necessary, for the rapid production of dry steam. The apparatus works instan-
taneously, and can be rapidly stopped in case of necessity arising from any
cause, and can be set to work again as rapidly, because of the use of hydro-
carbon burners in or as the furnace.
Total thin 7th day of Van 1900
A
BOULT & WADE,
Agents" for the Applicant.
COMPLETE SPECIFICATION.
nottimo A
Improvements in or relating to Steam Generators.
A. communication- from CHARLES ADOLPHE ROSIER,, of 3, Rue Salneuve, Paris,
in the Republic of France, Engineer.
I.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, 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 an instantaneous steam generator with circulation in
one direction only. The generator is provided with multitubular and capillary
tubular sets, composed of compound heating tubes and water tubes, to which
heat is supplied in any suitable manner.
2
Figure 1 represents a vertical section of the generator and a set of superposed
túbular elements, the lower tubes of which are shown in section. The furnace
is placed below.
Figure 2 represents an end or side view of the generator partly in section com-.
prising, in all, three sets of tubes shown in end view.
Figure 3 shows a vertical section of the generator on a large scale illustrating
clearly the connection of the parts of the tubular elements and Figure 4 is...a
section on the line a, b, c, d, e, f, of Figure 3.
r ..
3
The multitubular and capillary generator is composed of the following con-
stituent parts. Two concentric tubes, the inner one A, being smaller in dia,
meter, but longer than the outer tube B. An annular space lies between these;
two tubes A and B; the distance between the outer surface of the one and the
inner surface of the other, and therefore the depth or thickness of the water
film, being from three to five millimetres at the most, in order to obtain an
instantaneous vapourisation of the water. The ends of these tubes are con-
nected to hollow blocks or plates C provided with internal and external screw.
threads, which receive screw caps D D serving to secure the block to the corre-
sponding ends of the tubes A and B. The blocks C are provided with pas-
sages E serving to connect the annular space formed by the tubes A. and B.to
the spaces of the adjacent set of tubes, which is necessary for the vapourisation
of the water upwards through all the united sets of elements. The blocks C
are covered with caps fitted with winged-flanges for the reception of securing:
bolts. The lower caps F1 meet together at their bases in a chamber G set in
the refractory masonry of the furnace and forming an internal air-shaft for the
heat. The upper caps F2 are independent of one another and act as heat dis
charge-pipes. In point of fact the internal heating surface is formed by, the
interior of the caps F1 FF2 and the internal surface of the fire tubes A... On
the other hand the external heating surface is formed by the external surfaces
of the water tubes B, and by their connecting caps or conduits. -
Ff.. to ali

page_text: Internal passages H at the bottom of the lower blocks C permit of the intro-
duction of feed water, under pressure into each tubular set. All these orifices
are connected with a pressure conduit provided with cocks, this connection being
effected by suitable pipes.
Upper conduits I permit of the passage of the steam through branch tubes,
adapted to the sets of tubes, to the collectors K which are preferably of cylin-
drical shape.
The steam collector or dome K has a steam outlet provided with a cock L
with pressure gauge and a spring actuated valve. Moreover a blow-off cock M,
or an automatic discharge cock, is placed below the cock L and at the bottom
of the collector K, to permit of ascertaining the degree of dryness of the steam
in the collector or dome K, there being no water level.
At the lower part of the apparatus a perforated plate N is arranged forming
the grate surface or base. Below this plate another plate O, also perforated, is
adapted to slide, so that the admission of the outer air can be regulated or
entirely stopped. A chimney P on the top. of the apparatus enables the hot
gases, produced, to be discharged.
The action of the generator is stopped in the following manner:-The feed
water. to the pumps is cut off and the steam blow-off cock of the collector is
opened. Then there remains neither steam nor heat. Finally the door and the
upper cover are closed, whereupon immediately the whole apparatus cools down ·
completely.
Having now particularly described and ascertained the nature of the said
invention, as communicated to me by my foreign correspondent, and in what
manner the same is to be performed, I declare that what I claim is:-
•
1. A steam generator comprising a series of double tubes one within the
other, caps connecting the ends of adjacent inner tubes and perforated blocks
forming a. communication between the water space of adjacent sets of double
tubes; a steam collector in communication with said series of double tubes, in
combination with a heating device, substantially as described.
2. In a steam generator consisting of series of double tubes, one within the
other, means for connecting the ends of adjacent sets of tubes comprising a
perforated block connected by screwing to the ends of the outer tubes and a
hollow cap into which the ends of the inner tubes are screwed, substantially as
described.
3. The complete steam generator substantially as described or illustrated in
the accompanying drawings.
Dated this 21st day of November 1899.
BOULT, WADE & KILBURN,
Agents for the Applicant.