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 359
rtain. Reliable designers of this type ofmotor strike a happy medium between these two, and the commer-cial result is that in most cases these motors can be safely operatedon intermittent loads where the maximum load is twice the ratedload. A large reduction in speed giving a stable motor, is an… … a graphic recording ammeter will be used for this purpose. Therecord was taken on a lathe driven with a direct-current, adjustable-speed motor. The cycle of operations when turning the shaft.Fig. II, is as follows: Calculated r.m.s.(Amp.) 2 X time 1089 X180 = 196,020 900X140 = 126,000 oXri2= o…
Machine design
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