Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 320
secure just double the effect of thefaulty balance when the turntable is turned180 deg. This is indicated in the above formula by the factor \. Final balancing of the turbine disks or sections is obtained bydrilling at the points found by this method and in accordance withTable i giving the depths… … Fig. II.—The Riddell balancing machine. The horizontal position of the turntable is determined by thepointer A and scale B, Fig. 3, the pointer being made to oscillateequally on each side of the zero point in the manner common withdelicate chemical balances, thus eliminating even the small…
Machine design
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