I have made it in many sizes and
shapes, to give flames from 1/2 inch wide by 5 feet long to large square
or oblong blocks. By applying a blast of air at the ordinary gas jets,
and supplying the gas by a separate pipe, or series of pipes, below
the open end of the burner, this can be converted into a furnace of
extraordinary power. It is quite possible to burn as much as 2,000 cubic
feet of gas per hour per square foot of burner surface, producing a heat
sufficient to fuse any ordinary crucible. You see its power when I place
a bundle of iron wire in the flame; it is, in fact, a concentration of
hundreds or thousands of powerful blowpipe flames in one mass. It has
also this advantage, that with a blast of air it will burn and work
equally well any side up, and the flames can therefore be directed
straight on their work without loss. It is, in one form or another,
almost a universal burner, as it can be readily adapted to almost any
purpose, from tempering a row of needles to making steam for a 200 horse
power steam engine.
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