Encased electrical time switch having externally operable setting means

Claim 1

IN N ENCASED ELECTRIC TIME SWITCH INCLUDING A TIME PIECE, A SWITCH MEMBER, A TIME DIAL, A FIXED TAPPET FOR OPERATING THE SWITCH MEMBER IN ONE SENSE WHICH MAY BE SET AND LOCKED AT ANY DESIRED POSITION ON THE TIME DIAL, A STOP WHICH MAY BE SET AND LOCKED AT ANY OTHER DESIRED POSITION ON THE TIME DIAL, THE FIXED TAPPET AND STOP DEFINING A MAXIMUM TIME PERIOD DURING WHICH THE SWITCH MEMBER MAY BE CLOSED, AN EXTERNALLY OPERABLE SETTING MEANS COMPRISING AN ADJUSTABLE TAPPET ROTATABLE WITH RESPECT TO SAID TIME DIAL TO ANY DESIRED POSITION BETWEEN SAID FIXED TAPPET AND STOP FOR OPERATING THE SWITCH MEMBER IN THE OTHER SENSE, INFINITELY VARIABLE SELFLOCKING MEANS PROTRUDING THROUGH THE ENCASED TIME SWITCH FOR ROTATING SAID ADJUSTABLE TAPPET, AND COACTING MEANS ON SAID STOP AND FIXED TAPPET AND SAID ADJUSTABLE TAPPET WHICH PREVENT SAID ADJUSTABLE TAPPET FROM BEING SET TO A POSITION OUTSIDE SAID TIME PERIOD, WHEREBY THE ACTUAL TIME PERIOD DURING WHICH SAID SWITCH IS CLOSED MAY BE VARIED WITHIN SAID MAXIMUM TIME PERIOD BY THE SETTING OF SAID ADJUSTABLE TAPPET.