Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 168
HYDRAULIC POWER AND DEVICES. 157 … 583. STONEWARE FILTER for household use.The lower jar for storage of filtered water. Theupper jar has a hole filled with sponge that filtersthe dirt out; beneath, a bed of charcoal on a porousstone or earthen plate.
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
