33 kilos, of lead accumulator with arc
lamps, or to 4 kilos. of accumulator with glow lamps; and moreover the
acetylene cylinder can be charged and discharged, broadly speaking, as
quickly or as slowly as may be desired; while, it may be added, the same
cylinder will serve one or more self-luminous jets, one or more
incandescent burners, any number and variety of heating apparatus,
simultaneously or consecutively, at any pressure which may be required.
From the aspect of space occupied, dissolved acetylene is not so
concentrated a source of artificial light as calcium carbide; for 1
volume of granulated carbide is capable of omitting as much light as 4
volumes of compressed gas; although, in practice, to the 1 volume of
carbide must be added that of the apparatus in which it is decomposed.
LIQUEFIED ACETYLENE.--In most civilised countries the importation,
manufacture, storage, and use of liquefied acetylene, or of the gas
compressed to more than a fraction of one effective atmosphere, is quite
properly prohibited by law. In Great Britain this has been done by an
Order in Council dated November 26, 1897, which specifies 100 inches of
water column as the maximum to which compression may be pushed.
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