. The universal assistant, and complete mechanic : containing over one million industrial facts, calculations, receipts, processes, trade secrets, rules, business forms, legal items, etc., in every occupation, from the household to the manufactory. Fig. 13—iroKSE Whim. The next illustration, Fig. 14. an ingenious miners hoistingtt)wer constructed by Reynolds, Ris & Co., of San Francisco, who claim th*5 950 hoistin-g MACHnraUT. it will do the work of a steam engine at one-tenth the expense, as one hontcan easily hoist by it 1000 Iba. at a depth of 500 Fig. 14.—MnraiRs Hoisting
. The universal assistant, and complete mechanic : containing over one million industrial facts, calculations, receipts, processes, trade secrets, rules, business forms, legal items, etc., in every occupation, from the household to the manufactory. Fig. 13—iroKSE Whim. The next illustration, Fig. 14. an ingenious miners hoistingtt)wer constructed by Reynolds, Ris & Co., of San Francisco, who claim th*5 950 hoistin-g MACHnraUT. it will do the work of a steam engine at one-tenth the expense, as one hontcan easily hoist by it 1000 Iba. at a depth of 500 Fig. 14.—MnraiRs Hoisting potver; For deep mines the horse whim is generally superseded by reversiblewinding engines, Fig. 15, in which the chain or wire-rope passes around ahorizontal drum, which is driven witli great rapidity by steam-power, butthis costly machinery is seldom applied to mines unless it is settled beyond• doubt that they will become of permanent value.
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Keywords: ., bookcentury1800, bookdecade1870, booksubje, booksubjecttechnology
