Keep's test for cast-iron : a description of the routine to be pursued by those using this method of testing (1893)
W[illiam] J[ohn] Keep · leaf 24
infrom twenty-five to fortyminutes. It is well to coverthe crucible with the bottomof an old one. If the fur-nace is to be run all dayit is best to draw the gratebars and clean out the cin-ders and ashes at noon. Sixor eight heats can be madein a day, and a crucible willstand forty heats or… … Wig.31 ■Jl KEEP S I ES I F( >l< < VST [RON. the crucible in our testing room * A good chimney flue must be con-nected with furnace just under the cover. The work is so severe thatboth furnace and chimney must be securely clamped. The furnacelining will seldom last more than four or five…
Building materials · Metals · Cast Iron
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