0 a strip, used in a thermostat (= device to control temperature), made from two different metals which grow by different amounts when heated, causing it to bend and switch the thermostat on or off -- bimetal
Harrison also invented the bimetallic strip and the rolling bearing, without which most vehicles could not move.
A bimetallic strip is also used in a recording thermometer.
Within the device, the very small electric heating element, mentioned above, heats up a bimetallic strip.
Consequently, it takes longer for the bimetallic strip to warp sufficiently to trigger the electric cut-out described above.
A good example of a bimetallic material would be a bimetallic strip which is used in some kinds of thermometers.
A bi-metal mechanical thermometer uses a bimetallic strip and bends due to the differing thermal expansion of the two metals.
There are normally two types of metal on the bimetallic strip.
Tiny movement of the bimetallic strip causes much larger movement of the free end of the lever and the pen.
