Practical applied electricity; a book in plain English, for the practical man. Theory, practical applications and examples (1911)
Moreton, David Penn, 1882- · Chicago, The Reilly & Britton co · leaf 235
Fig. 191 The rockers supporting the brush-holder arms are mounted on the front bearing in small machines, and on projecting arms from the magnetic framein large machines. The rockersare always so arranged that theycan be moved by a lever or aspecially arranged hand wheel,which affords a means of…
Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
