A practical treatise on the manufacture of soap and candles .. (1888)
Brannt, William T. (William Theodore), b. 1844, Deite, C. (Carl), 1838-1921, Engelhardt, Alwin, Schaedler, Karl, 1843-1891 · Philadelphia, H. C. Baird & co.; [etc., etc.] · leaf 263
of the kettleand from there are conducted upward and around the kettle, andfinally into the chimney flue. With the high temperature of theheating gases formed by the combustion of the coal, the bottomof the kettle suffers considerably if placed immediately over thegrate, and scorching of the soap… … Fiff. 30. The characteristic feature of this arrangement is aprotecting arch placed between the bottom of the kettle and thegrate, so that the flame, before it reaches the bottom of the kettle,yields up its strongest heat by passing under this arch. The heating gases developed upon the grate a,…
Soap · Candles · Decorative arts
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