Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)
Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 198
711. MULTIPLE BRUSH COM-MUTATOR.—The brushes are adjust-able on the pivots of the handle bar, andare given an even pressure on the com* mutator by springs. 712. Front view. ELECTRIC POWER AND CONSTRUCTION. igj … 713. BIPOLAR SHUNT GEN-ERATOR, showing the shunt wind-ing on both fields and its connectionto the brushes, with interveningrheostat controller.
Mechanical movements
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