Bimetallic strip
part · 1759 · Early modern era
Two strips of metal that bend when heated (Harrison).
Principles and materials it uses
- Thermal expansion — uses. Metals expand differently.
- Brass — is made of. A brass–steel pair.
Where it is used
- Circuit breaker — is used in. The thermal trip is a bimetal strip.
- Thermostat — is part of. A classic thermostat is bimetallic.
- Marine chronometer — is part of. Harrison invented the bimetal strip to compensate for temperature.
- Electric kettle — is part of. Automatic switch-off when the water boils.
- Toaster — is part of. The timer of many toasters is bimetallic.