Cyclic electric time switch means

Cyclic electric time switch means comprising in combination a housing, an electrical clock in said housing, said electrical clock having a toothed drive gear, and trip contact means, said trip contact means comprising a toothed gear wheel coupled to said toothed drive gear of said electrical clock to be rotated thereby, a disc mounted coaxial with said toothed gear wheel, angularly adjustable with respect to said toothed gear wheel and mounting an electrical switch, a further settable disc, said electrical switch having contact terminals slidingly engaged with conductive tracks of said further settable disc, connection means whereby a device to be supplied with electrical power under the control of said electric time switch means can be connected to said further settable disc, a trip arm on said toothed gear wheel effective, in one position of rotation of said toothed gear wheel determined by the angular setting of said electrical switch, to operate said electrical switch, a manually settable control knob, said settable disc being rotatable with respect to said toothed gear wheel, for setting the desired instant of trip, by said manually settable control knob, a delay circuit and electromagnetic means energised through said delay circuit, following operation of the electrical switch, and effective, at the end of a delay period set by said delay circuit, to restore said electrical switch for repetition of said operation by said trip arm when said toothed gear wheel again attains said one position of rotation.