International Library of Technology · Scranton, International Textbook Co. · leaf 510
is, therefore, a portion of the main drum,between power position 12 and brake position 6, not touchedby the fingers at all. This untraversed space is dictatedby the width of the lug on the controller top; when the con-troller handle gets to the full multiple position, the twelfthposition, one side… … § 25 ELECTRIC RAILWAYS. 71 90. Auxiliary Fingers.—In the center of the spacethat the drawing devotes to the power part of the maindrum are four fingers R^, R^, D R, and <?^. These fingersbeing independent of the main-drum fingers proper and notbeing in line with them vertically, but being in…
Electrical engineering
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