Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 663
ncepistons with the corresponding stages. Fig. 278 shows a sectional veiw of the Parsons turbinewith the Allis-Chalmers modifications. L and M are thetwo balance pistons at the high pressure end. Z is a smallerbalance piston placed in the low pressure end, yet havingthe same effective area as did… … Fig. 270the allis-chalmers steam turbine Alhs-Clialmers Steam Turbine 651 pressure at Y. Valve V is a by-pass valve to allow of livesteam being admitted to the second stage of the cylinderin case of a sudden overload. This by-pass valve is theequivalent of the by-pass valve used to admit live steam…
