IMPROVE- MENTS IN APPARATUS FOR HEATING AND DISTILLING WATER FOR BOILER AND OTHER PURPOSES
Year: 1869

page_text: PROVISIONAL SPECIFICATION left by Clinton Edgcumbe Brooman
at the Office of the Commissioners of Patents, with his Petition,
on the 6th July 1869.-A communication from abroad by Cyprien
Marie Tessié du Motay, Jean Baptiste Frédureau, and Henri Paul
de Chavannes, all of 23, Boulevard de Strasbourg, Paris, France.
I, CLINTON EDGCUMBE BROOMAN, of the Firm of Robertson, Brooman,.
and Company, of 166, Fleet Street, in the City of London, Patent.
Agents, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN APPARATUS FOR HEATING AND DISTILLING WATER FOR BOILER AND OTHER
PURPOSES," to be as follows:-
By this Invention it is proposed to solve the following problem': -
To feed constantly marine and land boilers with distilled water; to.
employ the steam escaping from engines and the production of a
quantity of distilled water beyond the wants of this feed; to produce at
the same time when necessary a vacum behind the piston of a cylinder,
as made by an ordinary condenser, all by means of the apparatus
as hereafter described. The steam escaping from an engine of any
kind is directed into an apparatus formed of a cylindrical metal case.
In the interior of the case are placed a series of tubes. There are a

page_text: number of these casings, communicating one with the other by suitable
pipes of large diameters disposed as most convenient for the proper
working. Each of the apparatus is furnished with a tube for the steam
to enter, and another for its escape leading to an ordinary air pump.
Man-holes are provided by which the apparatus may be cleaned with
facility. When three apparatus are employed they are so placed that
while two of them are in operation the third one may be shut off for
cleaning or repairs, so as not to stop the supply of water and the
general working of the apparatus. The steam enters preferably at the
upper part of the casing, and passes down the tubes into the chamber
or outlet leading to the pump. The casing is divided by partitions,
and the space between the partitions being filled with water, and a
relative vacuum being formed, this water enters into a state of ebullition
at a temperature dependent upon the degree of vacuum, but always
below 100 degrees Centigrade. The steam which traverses the tubes
will give its heat to this water, and will transform it into steam, at the
same time it is itself condensed by the sides of the tubes. The water
formed by this condensation passes out by an exit provided for it into
a reservoir, according as the engine works with or without condensation.
It is well understood that in the first case the vacuum made in the
apparatus should be more complete than that made by the air pumps.
On the other hand the steam produced in one apparatus is conducted
to another of the same construction; but an air pump makes a vacuum
still more complete than in the first, so that the phenomena there
produced may be absolutely identical, and new quantities of con-
densed water and of steam are obtained; this last quantity of steam
is then itself condensed in a serpentine or other kind of apparatus
between the last distilling apparatus and the air pump, which there
maintains the vacuum. From this there are gathered, 1st, water resulting
from the direct condensation of the steam; 2nd, water coming from
the condensation of the steam which is formed in the first apparatus;
3rd, water coming from the condensation of the steam which is formed in
the second apparatus. Experience proves that a double quantity of water
is produced from that first employed in the boiler. One sees by this
that two of the apparatus suffice for working; the third is an apparatus
in aid to admit of the others being cleaned. Feed water of the distilling
reservoir is furnished to these apparatus at the lower part in a con-
tinuous manner, so that its heating is methodic and progressive, and so
that as it rises in temperature the steam which traverses these tubes

page_text: becomes colder, and condenses itself also in a methodic progressive
manner. It is that which has induced the Inventors to employ apparatus
of vertical form and of moderate height. The air pumps employed are
of very small size, and require very little power to work them. Above
all in engines of high pressure and without condensation these pumps
have only to extract the condensed water, and the quantity of air
dissolved in the water, which is very slight.
In consequence of what has been said it will be understood that the
chief features of the Invention are,-
1. The employment of recuperative apparatus for free and latent
heat of the steam, as above described, caloric capable of spreading itself
in new quantities of water and new quantities of steam under the lowest
possible pressure.
2. The employment of the apparatus to produce at the same time
in the engine a condensation analagous to that obtained by the ordinary
condenser.