Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 233
§ … Fig. 247. Self-Oiling Bearing for Commutator End 203 194 DIRECT-CURRENT DYNAMOS tors between them. The separators contain felt phigs which incident-ally store up lubricant to guard the bearings for a time against neglect. An advantage that attends the use of these bearings is that thefeature of…
Electrical engineering
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