Improvements in Electric Arc Lamps.
Номер патента: GB189800143A
Опубликовано: 03-01-1899
Автор(ы): George Thomas-Davies, William James Davy
Принадлежит: Individual
Опубликовано: 03-01-1899
Автор(ы): George Thomas-Davies, William James Davy
Принадлежит: Individual
Реферат: 143. Davy, W. J., and Thomas-Davies, G. Jan. 3. Drawings to Specification. Cut-outs for arc lamps. A horse-shoe electromagnet is situated above a pivoted armature. The magnet core is connected electrically through the coil upon it with one terminal of the lamp, and the armature is connected with the other terminal. The lamp has regulating-solenoids acting differentially on cores arranged so that the action of the shunt solenoid may lift the cut-out armature into contact with its electromagnet, which then maintains this contact, short-circuiting the lamp.
Improvements in high-pressure metal vapour arc lamps
Номер патента: GB397680A. Автор: . Владелец: Siemens and Halske AG. Дата публикации: 1933-08-31.