IMPROVEMENTS IN GENERATING ANHYDROUS STEAM, AND IN APPARATUSES, EMPLOYED THEREIN AND CONNECTED THEREWITH
Year: 1859

page_text: PROVISIONAL SPECIFICATION left by Richard Archibald Brooman at.
the Office of the Commissioners of Patents, with his Petition, on the
17th June 1859.-A communication from abroad by Claudius Marcius
Chaney Duplay, of Firminy, Loire, France.
I, RICHARD ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of
London, E.C., Patent Agent, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN GENERATING ANHYDROUS STEAM, AND IN APPARATUSES,
EMPLOYED THEREIN AND CONNECTED THEREWITH," (communicated to me from
abroad by Claudius Marcius Chaney Duplay, of Firminy, Loire, France,) to
be as follows:-
The main object of the present Invention is the obtaining of steam perfectly,
anhydrous. It consists in vaporizing a thin sheet of liquid supplied regularly
and continuously in manner hereafter stated, and in bringing the steam
generated in contact with molten metal, and then with the sides of the main
boiler or vessel heated by the heat escaping from the furnace through flues
carried round the outside thereof before its exit from the boiler, to be applied
as may be required. The Invention also consists in the particular arrangement
of apparatuses for carrying the above into effect, also in a condenser and liquid
supply regulator to be employed therewith.
The generating apparatus consists of an outer vessel formed with bottom,
sides, and top; the bottom is placed immediately over the furnace, and is filled
to a certain height with a readily fusible metal; resting upon and entering into

page_text: this metal is the vessel into which the liquid is admitted to be vaporized; its
sides are carried up sufficiently high to prevent any of the metal boiling over
into it; it is open at top; a cap is fixed over the vaporizing vessel, the sides of
which are kept apart from the sides of that vessel, so as to leave a space
between them. The lower edge of the cap does not extend down to the fusible
metal. To ascertain the state of fusion of the metal, a bent iron rod is carried
down through the cover of the outer vessel; attached to the top of the rod is a
handle for turning it about. A pyrometer, in the form of an iron rod, carried
down to the bottom of a closed pipe, which extends below the bottom of the
vaporizing vessel, and contains metal fusible at some degree above that of the
regular working temperature, is attached to a weighted lever connected to a
steam whistle. When the heat is getting too great, the metal becoming
fusible in the pyrometer tube releases the iron rod, and signals through the
whistle to the attendant to keep down the temperature. The liquid supply
regulator consists of a cylinder, in which is a weighted piston. As soon as the
supply to the cylinder has raised the piston to the top of its course, the supply
is shut off, and again turned on when the piston has descended to a certain
point, the object being a regular feed to the vaporizing vessel before named:
The feed pipe is carried into a box forming the upper part of the condenser,
and coming in contact with pipes, through which the steam to be condensed is
led, the feed water becomes heated; the feed pipe is curved upwards at its
outlet in the vaporizing chamber.
The condenser consists of two parts; the upper part, the box before
mentioned, is intended chiefly for heating the feed water; the steam, after
passing through the tubes in that box, enters another set of tubes in a second
box or case, through which a supply of condensing water is kept flowing
while the condensed steam is received in a vessel into which the steam pipes
open, and from which it may be drawn to supply the vaporizing chamber, as
before; safety valves are fitted to the boiler and to the liquid feed regulator.