Manufactured by Evered & Co. of Birmingham, England starting in the 1950s, the Wilkinson Fire Alarm was a standalone mechanical device driven by clockwork and activated by a fusible link designed to melt in the heat of a fire.

SOURCES

https://www.gracesguide.co.uk/Evered_...

https://www.oldcopper.org/makers/ever...

https://patents.google.com/patent/GB7...

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https://patents.google.com/patent/GB7...

https://worldwide.espacenet.com/publi...

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