The contents of this compartment are thereby discharged
through the shoot _C_ into the generating tank _B_. The gas
evolved passes through the cock _R_ and the pipe _T_ into the
gasholder, the rise of the bell of which takes the pull off the chain and
allows the weight at its other end to draw it up until it is arrested by
the stop _f_. The arm _d_ is thereby brought into position to
liberate the catch of the next carbide receptacle. The generating tank is
enlarged at its base to form a sludge receptacle _E_, which is
provided with a sludge draw-off cock _S_ and a hand-hole _P_.
Between the generating tank proper and the sludge receptacle is a grid,
which is cleaned by means of a rake with handle _L_. The gas passes
from the gasholder through a purifier _H_ charged with puratylene,
to the service-pipe.
[Illustration: FIG. 34.--"PHOTOLITHE" GENERATING PLANT.]
The same firm also makes a portable generating apparatus in which the
carbide is placed in a basket in the crown of the bell of the gasholder.
This apparatus is supplied on a trolley for use in autogenous soldering
or welding.
FRANCE.
_Maker_: LA SOC. DES APPLICATIONS DE L'ACETYLENE, 26 RUE CADET,
PARIS.
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