Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2887637A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NURNBERGER SCHRAUBENFABRIK und
Original Assignee
NURNBERGER SCHRAUBENFABRIK und
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Filing date
Publication date
Application filed by NURNBERGER SCHRAUBENFABRIK undfiledCriticalNURNBERGER SCHRAUBENFABRIK und
Priority to GB2887637ApriorityCriticalpatent/GB488779A/en
Publication of GB488779ApublicationCriticalpatent/GB488779A/en
H01H51/34—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts
Landscapes
Physics & Mathematics
(AREA)
Electromagnetism
(AREA)
Lining Or Joining Of Plastics Or The Like
(AREA)
Abstract
488,779. Electromagnetic interrupters. BRITISH N. S. F. CO., Ltd. (Nurnberger Schraubenfabrik und Facondreherei) Oct. 22, 1937, No. 28876. [Class 38 (v)] An electric vibrator 1 is mounted in a sealed container filled with a gas such as hydrogen or nitrogen or with a liquid so as to prevent oxidation of the contacts. The vibrator is suspended by springs 3 from a frame 2 clamped at 6 to the foot tube of the glass container and blocks of cork 8 prevent vibration of the frame. If the gas is at low pressure the device is still more silent.
GB2887637A1937-10-221937-10-22Improvements in electromagnetic interruptors
ExpiredGB488779A
(en)