. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . n is of course equally applica-ble to dynamo or to magneto electric machines. What I claim is— 1. The method of regulating the generativecapacity of magneto or dynamo electric ma- 65chines, consisting in reversing the polarity ofthe current in a greater or less portion of thecoils of their field-magnets, substantially as setforth. 2. The combination, with a field-magnet of 70a dynamo or magneto electric machine, ofmeans for reversing the polarity of the current in a greater or less portion of the coils of themagnet,
. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . n is of course equally applica-ble to dynamo or to magneto electric machines. What I claim is— 1. The method of regulating the generativecapacity of magneto or dynamo electric ma- 65chines, consisting in reversing the polarity ofthe current in a greater or less portion of thecoils of their field-magnets, substantially as setforth. 2. The combination, with a field-magnet of 70a dynamo or magneto electric machine, ofmeans for reversing the polarity of the current in a greater or less portion of the coils of themagnet, substantially as set forth. 3. A dynamo or magneto electric machine 75having one or both of the limbs of its field-magnet wound in separate sections of wire,each section including a circuit-reverser, sub-stantially as set forth. This specification signed and witnessed this 803d day of November, 1881. THOS. A. EDISON. Witnesses: H. W. Seely,Rtchd. N. Dyer. (Model.) 2 Sheets—Sheet 1. T. A. EDISON. ELECTRIC LAMP AND HOLDER FOR THE SAME. No, 265,311. Patented Oct. 3, (Model.) 2 Sheets—Sheet 2. T. A. EDISON. ELECTRIC LAMP AND HOLDER FOR THE SAME. No. 265,311. Patented Oct. 3,
Size: 1038px × 2407px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectinventions, booksubjecttelephone
