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 280
distance of about 2 feet above the worm or coil. Each ket-tle is thus connected with the pump by the iron pipes, which havevalves placed upon them on the outside (of the kettle), so thatthe contents of any one of the kettles may be readily pumped offand framed without disturbing the others. The… … arrow, the outlet marked S is the suction ; when rotated in theopposite direction, the opposite outlet becomes the suction. Thisis an important feature, as it enables the discharge-pipes to beemptied of their contents in stopping, by giving a few revolutionsby hand in the opposite direction. Fig.…
Soap · Candles · Decorative arts
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