(57) An electric switch comprises a housing (6) of plastics material, provided with an open-topped recess (8). Slots (10) extends through side walls (8a, 8b) of the housing and open into the recess (8), within each of which slots a contact (12) is located, so that the two contacts extend generally towards the centre of the recess (8), with a degree of separation. Located in the housing is a bridging device (16), afforded by a single length of wire coiled to form a resilient part (20), in the form of a helical spring, and a bridging part (18) afforded by a diametrically enlarged end section of the spring. The resilient part (20) has a diameter which is less than the separation between the contacts (12), whilst the bridging part (18) has a diameter greater than said separation.
The resilient part (20) urges the bridging part (18) away from the contacts, and into engagement with an actuator afforded by a cover member (22), the cover member being guided by the housing for linear movement between rest and operative positions. By depressions of the cover member (22) the bridging part (18) will be moved against the action of the resilient part (20) into engagement with the contacts (12), to close the circuit in which the contacts are connected.