. 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 Fig. 14.—MnraiRs Hoisting potver; For deep mines the horse whim is generally superseded by reversiblewinding engines, Fig. 15, in which the chain or wire-rope passes around ahorizontal drum, which is driven witli great rapidity by steam-power,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 becom
. 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 Fig. 14.—MnraiRs Hoisting potver; For deep mines the horse whim is generally superseded by reversiblewinding engines, Fig. 15, in which the chain or wire-rope passes around ahorizontal drum, which is driven witli great rapidity by steam-power,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 Fig. 15.—The Gkiffith & Wedge Winding Enginb. Water-power, if available, can also be used to good advantage for lower-ing into the mine timbers, tools, supplies, &c., and for elevating ore, pump-ing, &c. HOISTIIfG MACiiTKERT. 951 ^f; IG represents a kibble, or large iron bucket used in raising theore : it will hold a ton, more or less. Fig. 17, at a, represents a contrivancerunning on wheels (on rails or guides nf wood or nietil) called a skip ■*bb, represents the guide, cc, timbers of the shaft, dd, rock through which
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Keywords: ., bookcentury1800, bookdecade1870, booksubje, booksubjecttechnology
