GB190502980A - Electric Light Maximum Demand Alarm Relay. - Google Patents

Electric Light Maximum Demand Alarm Relay.

Info

Publication number
GB190502980A
GB190502980A GB190502980DA GB190502980A GB 190502980 A GB190502980 A GB 190502980A GB 190502980D A GB190502980D A GB 190502980DA GB 190502980 A GB190502980 A GB 190502980A
Authority
GB
United Kingdom
Prior art keywords
electric light
maximum demand
alarm relay
light maximum
demand alarm
Prior art date
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
Inventor
George Octavius Wills
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB190502980A publication Critical patent/GB190502980A/en
Expired legal-status Critical Current

Links

Landscapes

  • Emergency Alarm Devices (AREA)

Abstract

2980. Wills, G. O. Feb. 13. Switches.-A device for closing an alarm circuit when the current in a lighting-circuit exceeds a certain amount consists of an electro-magnet wound with independent coils and an armature controlled by an adjustable spring and moving between adjustable stops a, b. The coils are connected to suit the maximum current required, and may be short-circuited by a plug switch d.
GB190502980D 1905-02-13 1905-02-13 Electric Light Maximum Demand Alarm Relay. Expired GB190502980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190502980T 1905-02-13

Publications (1)

Publication Number Publication Date
GB190502980A true GB190502980A (en) 1905-09-07

Family

ID=32193839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190502980D Expired GB190502980A (en) 1905-02-13 1905-02-13 Electric Light Maximum Demand Alarm Relay.

Country Status (1)

Country Link
GB (1) GB190502980A (en)

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