. Electric railway journal . nstocks are connected to the intakesthrough valves of a type which represent a compara-tively new development in hydraulic practice. Theyoperate under a head of nearly 154 ft. The valveused is the invention of R. D. Johnson. It was builtby the Wellman-Seaver Morgan Company. The valveis shown herewith in diagrammatic section. Theprinciple of operation is that a plunger, C, slidesin a cylinder, B, enclosed in the shell, A, being closedthrough a two-way valve by penstock pressure throughthe left-hand horizontal pipe and vertical pipe 2. Thevalve seat is furnished by t
. Electric railway journal . nstocks are connected to the intakesthrough valves of a type which represent a compara-tively new development in hydraulic practice. Theyoperate under a head of nearly 154 ft. The valveused is the invention of R. D. Johnson. It was builtby the Wellman-Seaver Morgan Company. The valveis shown herewith in diagrammatic section. Theprinciple of operation is that a plunger, C, slidesin a cylinder, B, enclosed in the shell, A, being closedthrough a two-way valve by penstock pressure throughthe left-hand horizontal pipe and vertical pipe 2. Thevalve seat is furnished by the bronze rings E, E. Thevalve opens when pipe 2 is connected to the drain. Below the valve houses are the four 8-ft. penstocks,anchored above and below in heavy concrete blocks, andlaid in trenches and entirely back-filled. The steelplates vary in thickness from V2 in. on the upper hori-zontal portion of the penstocks to % in- at the lowerend where they enter the power house. The four turbines are of the Francis horizontal,.
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
