. Machinery and processes of the industrial arts, and apparatus of the exact sciences. Neut & Dumonts Centrifugal Pump—vertical section. The tunnel seen in the vertical section, surmounting the pump, isdesigned to fill it with water before the commencement of motion. There Fig. Neut & Dumonts Centrifugal Pump—horizontal section. is, of course, presumed to be a valve at the bottom of the tube of aspiralion, opening upward. CENTRIFUGAL PUMPS —COIGN ARD & CO. S. 185 COIGNARD & CENTRIFUGAL PUMP. In the pump of Messrs. Ooignard & Co., of Paris, there is a muchlarger departure from the ori
. Machinery and processes of the industrial arts, and apparatus of the exact sciences. Neut & Dumonts Centrifugal Pump—vertical section. The tunnel seen in the vertical section, surmounting the pump, isdesigned to fill it with water before the commencement of motion. There Fig. Neut & Dumonts Centrifugal Pump—horizontal section. is, of course, presumed to be a valve at the bottom of the tube of aspiralion, opening upward. CENTRIFUGAL PUMPS —COIGN ARD & CO. S. 185 COIGNARD & CENTRIFUGAL PUMP. In the pump of Messrs. Ooignard & Co., of Paris, there is a muchlarger departure from the ori- Fig. 49. ginal model. A vertical sec-tion across the axis of one ofthese pumps is shown in , and another section, alsovertical, through the axis, inFig. 50. Here, there are tworevolving drums G A G, bothattached to the same axis revolve, as before, inwater-tight boxes, but the entrance of the water takes placefrom the space O I, betweenthe drums; the openings foradmission being at F. Thedischarge takes place through an annular lateral space e e e e, into anannular cavity M M, which conducts it to the rising tube K The tube
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