. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . eheat, the circuits of the resistance being madeand broken upon such water-pipe, substan-tially as set forth. 4. The combination, with an electrical cir-cuit, of a series of exposed carbon rods serv-ing as resistances, means for throwing suchrods into and out of circuit, and a water-pipefor conducting off the heat, the circuits of the 70 75 90 95 105 ird- 120 125 130 287,525 3 carbon rods being made and broken uponsuch water-pipe, substantially as set forth. 5. The combination, with an opened elec-trical circuit, of
. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . eheat, the circuits of the resistance being madeand broken upon such water-pipe, substan-tially as set forth. 4. The combination, with an electrical cir-cuit, of a series of exposed carbon rods serv-ing as resistances, means for throwing suchrods into and out of circuit, and a water-pipefor conducting off the heat, the circuits of the 70 75 90 95 105 ird- 120 125 130 287,525 3 carbon rods being made and broken uponsuch water-pipe, substantially as set forth. 5. The combination, with an opened elec-trical circuit, of metallic water-pipes form-5 ing the terminals of the circuit, resistances inmultiple arc between such water-pipes, andmeans for throwing the resistances into of circuit, substantially as set forth. This specification signed and witnessed this4th day of October, 1882. THOS. A. EDISOKCHAS. L. CLAEKE. Witnesses: H. W. Seely,E. H. Pyatt. (No Model.) 2 Sheets—Sheet 1. T. A. EDISON. REGULATOR FOR DYNAMO OR MAGNETO EEECTRIO MACHINES. No. 288,318. Patented Nov. 13,
Size: 1341px × 1864px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectinventions, booksubjecttelephone
