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 80
The top of the cell is closed with pitch to preventleakage and evaporation. A binding post for holding the wireconnections is attached to each electrode and each cell is placedin a paper box to protect the zincs of adjacent cells from cominginto contact with each other when finally connected…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
