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 513
d dried in boxwood sawdust, or with clean softrags. Other kinds of sawdust are liable to discolor the metal. Tripoli is used mixed with tallow and beeswax, melted togetherand run into moulds of convenient size. If made in the shop, care shouldbe taken to avoid the use of an excess of either tallow… … Fig. 4,576.—The lacquer room. When possible, a separate room should be used for lacquering,or a portion of the shop may be partitioned off for the purpose in order to avoid all dustor moisture. If the room be heated by steam pipes, it is advisable to have the regulatingvalves outside. The lacquer…
Electrical engineering
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