05-20-2015, 11:17 AM
Usually those are leaf spring contacts. Sometimes the case is in fact the rotor as the stator is inside tbe case insulated with fiber washers, and the rotor shaft is connected to the case via bearings and springs, which case is in turn bolted to the chassis (Philco 20).
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.