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
GB21438/21A
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Individual
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Individual
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Publication of GB170825ApublicationCriticalpatent/GB170825A/en
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
Landscapes
Business, Economics & Management
(AREA)
Emergency Management
(AREA)
Engineering & Computer Science
(AREA)
Power Engineering
(AREA)
Switches That Are Operated By Magnetic Or Electric Fields
(AREA)
Abstract
170,825. Das, P. Oct. 28, 1920, [Convention date]. Addition to 162,587, [Class 38 (iv), Electric supply and transmission systems &c.]. Locking, electromagnetic.-The movable contacts 15, 6 of a double-pole switch are connected by an insulating bar 19 provided with a notch 18 into which the core 17 of an electromagnet 14 drops when the contacts 15, 6 are in their intermediate positions and the circuit of the electromagnet 14 is out of order.
GB21438/21A1920-10-281921-08-12Improvements in and relating to electric-emergency lighting installations
ExpiredGB170825A
(en)
Contact spring for the composition of contact games for electric relays, switches or the like. (Machine-translation by Google Translate, not legally binding)