[Illustration: FIG. 51.--GENERATING PLANT OF THE MANCHESTER ACETYLENE GAS
CO., LTD.]
_Maker:_ R,. J. MOSS AND SONS, 98 SNOW HILL, BIRMINGHAM.
_Type:_ (1) Automatic; water-to-carbide; superposed trays.
The "Moss" generator, "Type A," made by this firm comprises an equalising
gasholder, four, three, or two generating chambers, and an intermediate
water-controlling chamber. Each generating chamber consists of a frame in
which are arranged about a central tube trays half filled with carbide,
having water inlet-holes at several different levels, and each divided
into two compartments. Over this frame is put a bell-shaped cover or cap,
and the whole is placed in an outer tank or bucket, in the upper part of
which is a water inlet-orifice. The water entering by this orifice passes
down the outside of the bell, forming a water-seal, and rises within the
bell to the perforations in the carbide trays from the lowest upwards,
and so reaches the carbide in successive layers until the whole has been
exhausted. The gas evolved passes through the central tube to a water-
seal and condensing tank, through which it escapes to the controlling
chamber, which consists of a small water displacement chamber, the gas
outlet of which is connected to the equalising gasholder.
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