Automatic timing arrangement for automotive turn signalling system

Claim 1

AN AUTOMOTIVE VEHICLE TURN SIGNALLING SYSTEM COMPRISING, IN COMBINATION, A SOURCE OF D.C. POTENTIAL; LEFT AND RIGHT TURN SIGNAL LAMPS EACH HAVING ONE TERMINAL CONNECTED TO ONE TERMINAL OF SAID SOURCE; A CYCLICALLY OPERABLE CIRCUIT INTERRUPTER HAVING AN INPUT TERMINAL CONNECTED TO THE OPPOSITE TERMINAL OF SAID SOURCE; A TURN SIGNAL SWITCH SELECTIVELY OPERABLE BETWEEN A NEUTRAL POSITION AND EITHER OF A PAIR OF OPERATED POSITIONS TO CONNECT THE OTHER TERMINALS OF EITHER THE LEFT OR RIGHT SIGNAL LAMPS TO AN OUTPUT TERMINAL OF SAID CIRCUIT INTERRUPTER TO SELECTIVELY FLASH THE THUS CONNECTED SIGNAL LAMPS; ELECTRIC CURRENT RESPONSIVE TIME DETERMINING MEANS OPERABLE TO SIGNAL THE TERMINATION OF A PREDETERMINED SIGNALLING TIME INTERVAL; A TRANSISTOR ELECTRICALLY CONNECTED TO SAID SOURCE AND SAID TIME DETERMINING MEANS AND CONTROLLING CURRENT FLOW TO THE LATTER; TIMING MEANS CONNECTED TO SAID SOURCE AND SAID TRANSISTOR AND CONTROLLING THE BIAS OF THE LATTER, SAID TIMING MEANS BEING EFFECTIVE, AFTER A PREDETERMINED PERIOD OF ACTIVATION, TO ADJUST THE BIAS APPLIED TO SAID TRANSISTOR TO A VALUE SUCH THAT THE CURRENT FLOW TO SAID TIME DETERMINING MEANS WILL EFFECT OPERATION THEREOF TO SIGNAL THE TERMINATION OF THE PREDETERMINED SIGNALLING TIME INTERVAL; MEANS OPERATIVELY INTERCONNECTING SAID TURN SIGNAL SWITCH, SAID SOURCE AND SAID TIMING MEANS AND OPERABLE, UPON OPERATION OF SAID TURN SIGNAL SWITCH TO EITHER OF ITS OPERATED POSITIONS, TO INITIATE ACTIVITY OF SAID TIMING MEANS; AND OVERRIDE MEANS CONNECTED TO SAID SOURCE AND TO SAID TIMING MEANS AND OPERABLE, RESPONSIVE TO A SELECTED OPERATED POSITION OF AN INSTRUMENTALITY CONTROLLING THE MOTION OF THE VEHICLE, TO RENDER INEFFECTIVE THE CONTROL OF SAID TIMING MEANS ON SAID TRANSISTOR.