A practical treatise on foundations, explaining fully the principles involved : with descriptions of all of the most recent structures, accompanied by numerous drawings ... (1893)
Patton, William Macfarland, 1845-1905 · New York : John Wiley · leaf 328
the material to the pipe to prevent its choking up. A dense fog al¬ ways sets up when the pressure is lowered, and often water rises in the caisson, and much air is used, taxing the air compressors greatly. Notwithstanding these objections it is largely used. 41. The mud pump and sand pump do not… … passes upward through the annular space, for Removing Material from Working Chambers of Pneu¬ and upward in the discharge pipe, dk. matic Caissons. This creates a partial vacuum at the end of the supply pipe. The sand, mud, and water are thus drawn up into the discharge pipe, and are discharged at…
Foundations
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
