. Cassier's magazine . suddenpeak loads only by surrendering partof its stored energy to the part mak-ing the demand. It can give up thisenergy only by reducing its greater the mass the less will bethe reduction in speed called for tosupply a given demand, but an in-creased mass means only a greatervolume of shafting and , while we increase the mo-mentum to help out, we also increasethe number of machines to be af-fected. The eye and ear cannot de-tect a speed variation of plus andminus 5 per cent, from the normal,which is of only a few seconds dura-tion, and until r
. Cassier's magazine . suddenpeak loads only by surrendering partof its stored energy to the part mak-ing the demand. It can give up thisenergy only by reducing its greater the mass the less will bethe reduction in speed called for tosupply a given demand, but an in-creased mass means only a greatervolume of shafting and , while we increase the mo-mentum to help out, we also increasethe number of machines to be af-fected. The eye and ear cannot de-tect a speed variation of plus andminus 5 per cent, from the normal,which is of only a few seconds dura-tion, and until recently this fluctua-tion was not known to exist. Theelaborate tests of Mr. William Wood-house in English cotton mills with aspecially devised and very sensi-tive speed-recording instrument haveshown that double this variation issuffered manv times in a period offive seconds in an engine-driven mill.(Westinghouse Electric & Manufac-turing Company, Textile MotorTalk No. 10.) This fluctuation is ELECTRIC DRIVING 631. FIG. 1. OUTLINE SKETCH OF END VIEW OF MULE Showing relative positions of creel, rolls, carriage and faller wires end (dotted lines) of run out. at beginning (solid lines) and
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