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 522
heavy oak tanned leather.They may be used on any work requiring a hard, firm wheel, and theymay be set up in any grade of coarse or fine emery. When the emery begins to wear off, they should be washed in a wheelwasher, or the old emery and glue may be removed by means of anemery stick or buff… … FlG. 4,594.—Walrus or sea horse leather. Walrus leather has a peculiarly tough grain makingit especially adapted for polishing wheels. It is extensively used for polishing iron, steel,brass, cutlery, silverware, etc., where a fine polish is required. It can be used with emery,crocus, rouge, or…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
