Machine for determining amounts and positions of weights required to balance turbine rotors, marine propellers, etc. System of collars with plunger pins passing through them is applied to rotor in such a way that extent to which pins are, after running, found to have been pushed in or out indicates position of out-of-balance weight. Paper gives vibration diagrams of S. S. Niagara, 525 ft. by 66 1/4 ft. by 34 1/2 ft., 13,415 tons gross, obtained both before and after dynamically balancing center propeller. Paper read before Instn. Naval Architects. (See also Eng vol. 109, no. 2832, Apr. 9 1920 pp. 491-494, 14 figs)
Balancing of turbines and propellers
Engr
Engineer ; 129 , n 3354
1920
3 pages
4 Figs.
Aufsatz (Zeitschrift)
Englisch
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