one end of spring transmitting movement to the contact member when the other end is moved by the operating part

Full Title

Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement > Energy stored by deformation of elastic members (by deformation of bimetallic element in thermally-actuated switches H01H37/54) > by compression or extension of coil springs > one end of spring transmitting movement to the contact member when the other end is moved by the operating part