Electricians' operating and testing manual; a hand book for men in charge of electrical apparatus, repair men, trouble men, lamp trimmers, and electricians generally (1916)
Horstmann, Henry Charles, Tousley, Victor Hugo, 1875- joint author · Chicago, F.J. Drake & co · leaf 107
Figure 71 upper side and increases the arc of contact, as illus-trated in Figure 70, whereas a belt operating as that … Figure 72 sho^ra in Figure 71, by its slack decreases its arc ofcontact with the pulleys. Whenever it is necessary toarrange belting as in Fignre 72, it becomes necessary 104 Operating and TesUng to keep the belts very tight. This is apt to result inhot bearings and also increases the amount of…
Electrical engineering · Electric testing
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