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 108
Fig. 25.—Planetary back gearing, Gear Ratios for Motor Drives Gear ratios for motor drives as pointed out by W. OwEN {Amer^Mack., March 28, 1907) are frequently arranged to advance in multi-ples of the total speed ratio of the motor—a method which results inthe highest speed with each gear in,… … that gear out and in reducing the total range. These results areshown in Fig. 26, in which the motor ratio is three to one. Werethe speeds made to advance as the gears are thrown out the result would be that shown in Fig. 27, which gives a total range of —5-^ = ol 1.51 times that of Fig. 26. The…
Machine design
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