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Full text of "Metallurgy Of Cast Iron"

PHYSIC AT,   TESTS   FOR   THE   BLAST-FURNACE,    ETC.     509
quickly, as it does, strike the under part of this cup, an explosion could occur, making the iron fly in all directions. By the plan devised such accidents are prevented.
FIG. Iig.—PLAN   OF  MOULD   BOARD.
FIG. 12O,—CLAMP,   CHILL   AND MICROMETER.
FIG. 121.—SECTION   OF MOULD.
In cases where the fluidity and chill tests are not desired, and a plain round test bar only is wanted (which, for general purposes, will serve many ends), a plain round pattern, as at L, Fig.n8, page 507, which in the be easily done .t two minutes.