Electric switching mechanism

Claim 1

A PUSH BUTTON SWITCH MECHANISM HAVING, IN COMBINATION, A HOUSING, A PAIR OF PUSH BUTTONS GUIDED IN SAID HOUSING FOR MOVEMENT INWARDLY AND OUTWARDLY ALONG GENERALLY PARALLEL PATHS, GUIDE RODS ADAPTED FOR CONNECTION TO CONTACT ELEMENTS AND GUIDED IN SAID HOUSING FOR ENDWISE MOVEMENT ALONG SAID PATHS, EACH OF SAID GUIDE RODS HAVING DETENT RECESSES SPACED ALONG THE ROD AND OPENING TOWARD THE OTHER ROD, SAID HOUSING HAVING A GUIDEWAY EXTENDING TRANSVERSELY BETWEEN SAID GUIDE RODS AND OPENING AT OPPOSITE ENDS ADJACENT SAID RECESSES, DETENTS MOVABLE IN OPPOSITE ENDS OF SAID GUIDEWAY AND YIELDABLY URGED AWAY FROM EACH OTHER AND INTO SAID DETENT RECESSES FOR HOLDING THE RESPECTIVE PUSH BUTTONS YIELDABLY IN EACH OF AN INNER POSITION AND AN OUTER POSITION, MAIN PUSH BUTTON SPRINGS EACH ACTING BETWEEN A DIFFERENT ONE OF SAID PUSH BUTTONS AND SAID HOUSING TO URGE THE BUTTON OUTWARDLY, EACH OF SAID BUTTONS HAVING AN INWARDLY OPENING RECESS RECEIVING THE OUTER END PORTION OF THE ASSOCIATED GUIDE ROD AND SUCH PORTION HAVING AN ELONGATED SLOT THEREIN, TWO PINS EACH EXTENDING TRANSVERSELY THROUGH A DIFFERENT ONE OF SAID BUTTONS AND SAID SLOT IN THE ASSOCIATED GUIDE ROD, SECOND PUSH BUTTON SPRINGS EACH EXTENDING ALONG A DIFFERENT ONE OF SAID GUIDE RODS IN SAID SLOT THEREOF AND ACTING AT OPPOSITE ENDS AGAINST THE ASSOCIATED PIN AND THE OUTER END OF THE SLOT TO URGE THE ASSOCIATED PUSH BUTTON OUTWARDLY, AND INTERLOCKING MECHANISM HAVING PARTS MOVABLE WITH EACH OF SAID GUIDE RODS AND INTERENGAGEABLE TO PREVENT MOVEMENT OF EITHER OF SAID PUSH BUTTONS INTO SAID INNER POSITION THEREOF WHEN THE OTHER PUSH BUTTON IS IN ITS INNER POSITION.