the purifying liquor is con- the'two hoppers is a "dropping slide "ex- hollow iron box of any required shape, hav- tained, and having an opening in the centre. upon which it is washed or scrubbed. tending entirely across the frame, and which ing the top and bottom, which are made pur- has a… … tached vertical rods, which alternately serve perforated to admit air to the inside, and the The annexed engravings show several im- iron, which act as partitions, and the other to to force a seed from the hopper into the drop- lamp may be made to BWing loose or kept provements in Steam Boilers,…
Patents · Plow · Carbonic · Mole · Secured · Carbonic acid · San Francisco · San Diego · Scientific American · Pure silver · Acid gas · Smoothing iron · Perspective view · Water spaces · Rotten stone
Internet Archive · Public domain (published before 1931). Free to use for anything.
