. American engineer and railroad journal . ich tendsto separate the disks B from the crowns C. In the last in-stance the inventor has produced a motor (figs. 3 and 4) whichreminds one of the eolipyle of Heron. The steam (fig. 3) admitted to B enters the first arm Asthrough the holes f and C, whence it escapes through thetangential openings a a into the first chamber D- : thence itpasses from this chamber by the annular opening cut aroundthe shaft C into the second arm Ai, and so on to the last cham-ber D, whence it escapes through F either directly or afterhaving exhausted its force on the tur
. American engineer and railroad journal . ich tendsto separate the disks B from the crowns C. In the last in-stance the inventor has produced a motor (figs. 3 and 4) whichreminds one of the eolipyle of Heron. The steam (fig. 3) admitted to B enters the first arm Asthrough the holes f and C, whence it escapes through thetangential openings a a into the first chamber D- : thence itpasses from this chamber by the annular opening cut aroundthe shaft C into the second arm Ai, and so on to the last cham-ber D, whence it escapes through F either directly or afterhaving exhausted its force on the turbine K (fig. 4). Leakages 406 THE AMERICAN ENGINEER [September, 1*95. of steam around the shaft C are avoided by the grooves B E,,and the water of condensation from tlieclianil>ers D, D-,, whichaccumulates in the pockets 0 through the holes //. The strain close the openings i and open i. A greater amount of steamwill then pass through this side of the system, and tints draw it back into Its normal position. It is a centrifugal Fig. 5.—PARSONS TURBINE ELECTRIC GENERATOR. thus expands from the arm A to the next, and through the suc-cessive chambers D D,. : . .Fig. 5 represents a Parsons turbo-electric generator. DUMOULIN TURBINE (1886). In figs. 0 and 7 the casing B is keyed to the shaft 0, whichturns around the disk indicated by double-hatched lines in fig. EDWARDS TURBINE (1892). This turbine, which is shown in figs. 10 and 11, is composedof a movable disk, 30, between two fixed plates 14 and 15, andturning the shaft by means of the plate 31. Steam is ad-mitted at 10, 11, 12 and 21, between the movable disk and thetwo fixed disks, and escapes through 33 after having expand-
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
