Actuation attachment for electrical controlling and signalling devices, particularly for emergency circuit breakers

Abstract From the Canadian patent

A actuation attachment includes a central slider formed at one end with a push button and at the opposite end with a holding piece for an actuator. The slider is inserted in a cylindrical sleeve so as to be movable in axial direction relative to the latter but engaging it for joint rotation. The sleeve is inserted in a cylindrical bore of a housing to move in axial direction and to rotate about its central axis. The slider is formed with an axially directed slot accommodating two locking elements in the form of hollow pins which project into corresponding holes formed in the sleeve. The locking pins are urged one from the other by a biasing spring. The cylindrical bore of the housing is …