At the base of the cone is a sludge-valve
_G_. The gas passes from the generator through the pipe _H_
into the washer _B_, and after bubbling through the water therein
goes by way of the pipe _K_ into the gasholder _C_. The syphon-
pot _E_ is provided for the reception of condensed moisture, which
is removed from time to time by the pump _M_. From the gasholder the
gas flows through the valve _R_ to the purifier _D_, whence it
passes to the service-pipes. The purifier is charged with material
supplied under the proprietary name of "Standard."
[Illustration: FIG. 60.--CARBIDE-TO-WATER GENERATING PLANT OF THE STANDARD
ACETYLENE CO.]
(2) Automatic; water-to-carbide; contact, superposed trays.
This plant comprises the generators _A_, the washer _B_, the
equalising gasholder _C_, the purifier _D_, and the water-tank
_E_. The carbide is arranged on a series of wire trays in each
generator, to which water is supplied from the water-tank _E_
through the pipe _Y_ and the control-tap _U_. The gas passes
through the pipes _H_ to the washer _B_ and thence to the
holder _C_. The supply of water to the generators is controlled by
the tap _U_ which is actuated by the rise and fall of the gasholder
bell through the rod _F_.
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