. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . osed. To 65break the connections,the lamp is raised; butthere is no danger of igniting inflammablegases, since the connections are made andbroken under water. It is evident that thedevice could be constructed so that one con- 7anection only would be separable, the connec-tion being made with mercur5T, above whichwould be a superimposed body of water. What I claim is— 1. The combination, with the electrodes of 75an incandescing electric lamp, of two water-tubes having connections whereby the two con-nections with the
. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . osed. To 65break the connections,the lamp is raised; butthere is no danger of igniting inflammablegases, since the connections are made andbroken under water. It is evident that thedevice could be constructed so that one con- 7anection only would be separable, the connec-tion being made with mercur5T, above whichwould be a superimposed body of water. What I claim is— 1. The combination, with the electrodes of 75an incandescing electric lamp, of two water-tubes having connections whereby the two con-nections with the lamps are separately madeand broken under water, substantially as setforth. 8c 2. The combination, with an electric lampprovided with a base from which extend metalrods connected with the leading-in wires ofthe lamp, of tubes containing mercury andwater, and circuit-wires running from themer- 85cury of the tubes, substantially as set forth. This specification signed and witnessed this7th day of July, 1882. THOMAS A. EDISON. Witnesses: Riohd. N. Dyer,Edward H. Pyatt. -A \. (No Model.) T. A. EDISON. INCANDESCENT ELECTRIC LAMP. No. 264,657. Patented Sept. 19, 1882.
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Keywords: ., boo, bookcentury1800, booksubjectinventions, booksubjecttelephone
