Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 663
lancepistons with the corresponding stages. Fig. 278 shows a sectional veiw of the Parsons^ turbinewith the AUis-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. 270 THE ALLIS-CHALMERS STEAM TURBINE Allis-Chalmers Steam Turbine 651 pressure at Y. A^alve 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…
