Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 380
er rods ; without wishing to slight vised and constructed for the occasion, are in the least the valuable pumps of various too numerous to be included in this paper. The cable used is a 6 in. untarred manilla rope, only heavier than formerly, to meet the increased weight of the tools. The wire rope… … The sand pump shown in Fig. 10 com- kinds that are in use, the majority of wells- bines two advantages, — first, the valve with are at present pumped with plain working.;
Engineering
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