Annual report of the City Engineer . lOS^/io- (?> J^ /•-? « r. lin-fn^aafe**..-*-. i * -Ov?, -. ) Engineering Department. 55 lower level than those for the engines, the pump chambersbeing tied to the engine bed plate by horizontal girders, aswell as by the pump cross-head guides, which are inclined30 degrees from the horizontal. This peculiar arrangementof inclined pumps was found necessary to suit existing con-ditions of engine-house, pump-well, etc. The pump bases, or suction chambers, six in number, onefor each end of each pump, are connected together, and thebases of each pump are
Annual report of the City Engineer . lOS^/io- (?> J^ /•-? « r. lin-fn^aafe**..-*-. i * -Ov?, -. ) Engineering Department. 55 lower level than those for the engines, the pump chambersbeing tied to the engine bed plate by horizontal girders, aswell as by the pump cross-head guides, which are inclined30 degrees from the horizontal. This peculiar arrangementof inclined pumps was found necessary to suit existing con-ditions of engine-house, pump-well, etc. The pump bases, or suction chambers, six in number, onefor each end of each pump, are connected together, and thebases of each pump are connected b}^ a separate suction-pipe. The lower or working pump chamliers are surrounded byannular spaces throughout their height, forming vacuumchaml)ers. The upper pump chaml)ers contain the delivery nozzles,and above these are the air chambers, all six of the latterbeing connected by pipes. Each end of each pump has onesuction and one delivery valve, consisting of a number ofrigidly connected rings covering annular openings in thevalve seats. The speed necessary for the required dutycapaci
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Keywords: ., bookauth, bookcentury1800, bookdecade1860, booksubjectpublicworks
