Fittings are now being specially made for
acetylene, which is a step in the right direction, because, in addition
to superior taps and joints being essential, smaller bore piping and
smaller through-ways to the taps than are required for coal-gas serve for
acetylene. It is perhaps advisable to add that wherever a rigid bracket
or fitting will answer as well as a jointed one, the latter should on no
account be used; also water-slide pendants should never be employed, as
they are fruitful of accidents, and their apparent advantages are for the
most part illusory. Ball-sockets also should be avoided if possible; if
it is absolutely necessary to have a fitting with a ball-socket, the
latter should have a sleeve made of a short length of sound rubber-tubing
of a size to give a close fit, slipped over so as to join the ball
portion to the socket portion. This sleeve should be inspected once a
quarter at least, and renewed immediately it shows signs of cracking.
Generally speaking all the fittings used should be characterised by
structural simplicity; any ornamental or decorative effects desired may
be secured by proper design without sacrifice of the simplicity which
should always mark the essential and operative parts of the fitting.
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