Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 211
mental in appearance, and at thesame time substantial and of light weight. In order to guide the car, two guide rails usually and preferably ofiron are mounted vertically in the elevator shaft, and over these railsfit guide shoes that are fastened to the car. These guides are usuallyplaced on… … PlG. 4,128.—Typical modern passenger car. Wood or other combustible material is practicallyeliminated, and with the exception of the floor boards, the construction is all metal. Sheetmetal is employed around the lower part and open metal grill work around the upperportion giving a well ventilated…
Electrical engineering
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