Improvements in connection with Incandescence Electric Lamps
461. Stearn, C. H., and Topham, C. F. Jan. 8. Grant of Patent refused. Incandescent lamps.-A U-shaped filament 3 is kept in place by a steel or other spring 2, flattened in a plane at right-angles to that of the filament and provided with a hook or loop 4. The spring is attached to a stem 1 of glass...
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| Zusammenfassung: | 461. Stearn, C. H., and Topham, C. F. Jan. 8. Grant of Patent refused. Incandescent lamps.-A U-shaped filament 3 is kept in place by a steel or other spring 2, flattened in a plane at right-angles to that of the filament and provided with a hook or loop 4. The spring is attached to a stem 1 of glass or other material, and several filaments may be supported on one stem. |
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