An Improved Valve for Water-gas Generating Apparatus.
Year: 1899

page_text: Date of Application, 11th Apr., 1899--Accepted, 10th June, 1899
COMPLETE SPECIFICATION.
An Improved Valve for Water-gas Generating Apparatus.
We, MORIZ EISSLER, President of the Société Internationale du Gaz d'Eau,
BREVETS STRACHE (Société Anonyme) établie à Bruxelles, of 2, Ebendorferstrasse,
Vienna I, and DR. HUGO STRACHE, General Manager of the said Société, of
14, Feldgasse, Vienna VIII, both in the Empire of Austria, do hereby
the nature of this invention and in what manner the same is to be per-
formed to be particularly described and ascertained in and by the following
statement:-
In apparatus for generating water-gas (generators and regenerators) it is of
especial importance to be able to conveniently and securely close perfectly gas-
tight, all openings, pipes or conduits leading to and away from the said
generators and regenerators and serving for the entrance of air and the exit of
gases, in order to be able to completely avoid the escape of steam or gas as well
as the passage of gas into the air-pipes or inversely.
For closing the said openings and pipes or conduits there are at present employed
slide and other valves of various forms of construction, which, however, one and
all, have joint-forming surfaces which are often ground away and made leaky
by flying ashes and the like in such a manner that the desired object is not
perfectly attained and losses of steam or gas and explosions are caused by reason
of the passage of gas over into the air-pipe or inversely.
According to our said invention, a completely gas-tight and certain closure is,
however, obtained by employing hydraulic seals and for this purpose, disc-valves
with a hydraulic seal are more especially suitable, wherein mercury is preferably
employed as a sealing liquid on account of the high pressure in the water-gas
apparatus and the high temperature of the gases as they are drawn off. In
order to prevent evaporation of the sealing liquid, it is preferably cooled_by_a
jacket or casing surrounding the valve and in which there is a cooling liquid. "In
valves which are designed for the passage through them of gases carrying flying
ashes (such, for example, as exhaust-gas-valves), there is, at the same time,
provided a space for the deposition of the flying ashes as well as an opening capable
of being closed and serving for the convenient cleansing of the surface of the
sealing liquid.
Figure shows in vertical section, by way of example, one form of our
improved exhaust-gas valve for water-gas generators.
E is the inlet; F F are baffle-plates or catch-plates for arresting flying ashes.
S is the chamber for collecting the flying ashes, which chamber can be emptied
through an opening O capable of being closed. V is the body of the valve; W the
cup or annular trough for the sealing liquid. A is the outlet for the gases. P is
the cleaning opening which is capable of being closed and serves for cleaning the
surface of the sealing liquid. K is the cooling vessel.
Figure 2 shows, by way of example, a'form of secondary air-blast valve, wherein
the above-mentioned reference letters are retained. The cooling vessel K is only
required when hot air is to be blown through the valve.

page_text: 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. The improved valve for use in water-gas-generating apparatus, wherein
the edge of the valve-disc dips into a sealing liquid for the purpose of making a
tight closure, substantially as described.
2. The modification of our improved valve wherein a vessel or jacket for holding
a cooling liquid is arranged around the cup or annular trough for receiving
the sealing liquid, substantially as described.
3. The modification of our improved valve wherein catch-plates or.
.baffle-plates
are provided for arresting flying ashes, these plates being so arranged that the
combustion-gases have to pass the same as they enter the exhaust gas-valve,
substantially as described.
4. The improved valve constructed substantially as described with reference
to Figure 1 of the drawing for the purposes specified.
D. YOUNG & Co.,
11 and 12, Southampton Buildings, London, W.C.,
Agents for the Applicants.