The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting (1894)
Martin, Thomas Commerford, 1856-1924, Tesla, Nikola, 1856-1943 · New York : The Electrical Engineer · leaf 230
o r r { Iii;-. !...•), each (d which compri>e>a sphericalmiddle portion ///with an extension » lielow which i> merely usedto fa>tentln piece in a lathe when polisliiiii: up the ilischaririnir HIGH FREQUENCT AND HIGH POTENTIAL CURRENTS. 211 surface—and a column above, which consists of a… … Fig. 135. wire, and also for turning it in any ])ositi()n when it becomesnecessaiv to present a fresh discharging surface. Two stoutstrips of hard rubber r k, with planed grooves g g (Fig. 136) to fitthe middle ])orti()ii of the pieces c c, serve to clamp the latterand hold them flrndy in position…
Electric currents, Alternating · Electrical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
