Improvements in Tripping Devices for Electric Switches and the like.
Номер патента: GB191328111A
Опубликовано: 07-12-1914
Автор(ы): John Grice Statter
Принадлежит: Individual
Опубликовано: 07-12-1914
Автор(ы): John Grice Statter
Принадлежит: Individual
Реферат: 28,111. Statter, J. G. Dec. 6. Drawings to Specification. Transformers.-The Provisional Specification describes a transformer for use in tripping electric switches &c. The transformer has three primary windings on a common core, the three windings being respectively excited by the three phases of a three-phase supply, one of the three being reversely connected, and a secondary winding connected to a trip magnet &c.
Improvements in cord or cable gripping devices for use with electrical sockets and plugs and the like
Номер патента: GB267602A. Автор: . Владелец: WALSALL HARDWARE Manufacturing Co L. Дата публикации: 1927-03-17.