International Library of Technology · Scranton, International Textbook Co. · leaf 461
back of the shell and connect to eachof the rings by being screwed into one of the spokes asshown. These studs are heavily insulated throughouttheir length by tubes made of mica or hard rubber. Afterthe terminals of the armature winding have been attachedto the studs, all exposed parts should be… … CURRENT APPARATUS. 2827 4193. The dimensions of the rings are determinedquite as much by mechanical considerations as by thecurrent which they are to collect. The surface of the ringsshould be wide enough to present sufficient collectingsurface, and they should be thick enough to allow for…
Electrical engineering
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