Improvements in System of Electric Lighting.
Номер патента: GB190317601A
Опубликовано: 13-08-1904
Автор(ы): Henry Leitner, Richard Norman Lucas
Принадлежит: Individual
Опубликовано: 13-08-1904
Автор(ы): Henry Leitner, Richard Norman Lucas
Принадлежит: Individual
Реферат: 17,601. Leitner, H., and Lucas, R. N. Aug. 14. Armatures ; dynamos, regulating; field magnets.- In a train-lighting system of the kind described in Specification No. 23,066, A.D. 1902, means are provided for facilitating the excitation of the main dynamo when started and for diminishing its output when the storage battery is fully charged. These means consist of a compound-wound electromagnet w adapted to actuate two spring-controlled switch armatures z, z<1>. The low-resistance winding of the magnet is in the main dynamo circuit, and the high-resistance winding is connected to points x. One of the armatures z is arranged to shortcircuit the iron resistance i and the differential winding c until the dynamo is excited sufficiently, when the armature is attracted and the circuits are opened. The armature may be arranged to perform only one of these functions. The other armature z<1> is only attracted when the voltage of the battery becomes excessive, and serves to insert a resistance q between the resistance i and the winding d of the subsidiary dynamo. It may also serve to introduce a resistance r between the resistance i and the short winding a. These armatures may be replaced by breaks. The armature may also short-circuit the resistance h, and so increase the current through the winding of the subsidiary dynamo.
Improvements in or relating to shade carriers for electric lighting fittings
Номер патента: GB645884A. Автор: . Владелец: SYDNEY HUBBOLD. Дата публикации: 1950-11-08.