. 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. 12.—WlKDLASfl. of the ore may be effected by of a windlass, as shown in Fig. 12 ; a wiiize from level to level, but not penetrating to the surface,the same means are used, hut in deeper excavations it is usual to raise thoore by what is styled a whim, worked by horsc-oower, as shown in , in which the cable which elevates
. 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. 12.—WlKDLASfl. of the ore may be effected by of a windlass, as shown in Fig. 12 ; a wiiize from level to level, but not penetrating to the surface,the same means are used, hut in deeper excavations it is usual to raise thoore by what is styled a whim, worked by horsc-oower, as shown in , in which the cable which elevates the ore is wound around a vertical drum. =3. 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 ft.
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Keywords: ., bookcentury1800, bookdecade1870, booksubje, booksubjecttechnology
