Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 962
withdrawn by aid of the bull-wheel and shaft.The sediment and battered rock are removed bymeans of a sand-pump, Fig. 4280, which is aheavy metal tube, slightly smaller than the well-bore, and about 6 ft. long, with the lower endclosed by a simple valve opening upward; this islowered and withdrawn… … 4287. informed of the progress and prospects of hiswork. The pump is used after each drilling of6 to 12 in. Fig. 4281 represents the working ofthe boring tools in the Pennsylvania oil region.The tubing of a well consists of a heavy ironpipe lowered in sections, the joints of which areflush both…
Mechanical engineering -- Dictionaries
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