Show the costly elevator elevator or vertical travel tor for the average multistory factory floor to floor Is seldom over 15 feet yet in trav traversing that abai dl dle tance stance together with starting stopping and with the same loading and unloading time we can travel in the same time an equivalent distance of oc feet horizontally ono factory manager of an inquiring turn of mind estimated in his particular plant th that atthe the cost ot of elevator service wages of operator power repairs and time consumed by men using the elevators amounted to about 2 pe per r cent of his payroll engineering rink magazine |