Dual intensity light system having double vane flasher operable at a constant flashing rate

Claim 1

FOR USE IN A VEHICLE HAVING SIGNAL LAMP, A SELECTOR SWITCH, A SOURCE OF OPERATING POTENTAIL, AND FLASHER ALL CONNECTED TO EACH OTHER IN AN ELECTRICAL CIRCUIT FOR FLASHING SAID SIGNAL LAMP ON AND OFF WHEN SAID SELECTOR SWITCH IS CLOSED BY THE OPERATOR, AND ALSO HAVING A MANUALLY OPERABLE LAMP SWITCH FOR ENERGIZING LAMPS FOR NIGHT OPERATION AND DEENERGIZING THE LATTER LAMPS FOR DAY OPERATION; A DROPPING RESISTOR CONNECTED IN SERIES WITH THE SIGNAL LAMP FOR REDUCING THE BRILLIANCY THEREOF DURING NIGHT OPERATION AND A BLEEDER RESISTOR ELECTRICALLY CONNECTED TO THE FLASHER FOR INCREASING THE LOAD UNDER WHICH IT OPERATES, A FIRST SWITCH SHUNTING SAID DROPPING RESISTOR WHEN SAID FIRST SWITCH IS CLOSED AND A SECOND SWITCH ELECTRICALLY CONNECTED WITH SAID BLEEDER RESISTOR FOR DISCONNECTING THE LATTER FROM THE CIRCUIT WHEN SAID SECOND SWITCH IS OPEN AND CONNECTING SAID BLEEDER RESISTOR INTO THE CIRCUIT ONLY WHEN SAID SECOND SWITCH IS CLOSED, SAID FIRST SWITCH BEING OPERATIVELY CONNECTED TO SAID LAMP SWITCH TO BE OPENED WHEN SAID LAMP SWITCH IS SET FOR NIGHT OPERATION AND TO BE CLOSED WHEN SAID LAMP SWITCH IS SET FOR DAY OPERATION, SO THAT DURING DAY OPERATION SAID DROPPING RESISTOR IS SHUNTED BY SAID FIRST SWITCH, AND MEANS RESPONDING AUTOMATICALLY TO OPENING OF SAID FIRST SWITCH FOR AUTOMATICALLY OPENING SAID SECOND SWITCH TO DISCONNECT SAID BLEEDER RESISTOR FROM THE FLASHER WHEN SAID FIRST SWITCH IS OPENED TO PLACE SAID DROPPING RESISTOR EFFECTIVELY IN THE CIRCUIT OF SAID SIGNAL LAMP, WHEREBY THE BLEEDER PLACED ON THE FLASHER BY SAID LOAD RESISTOR THROUGH SAID SECOND SWITCH IS REMOVED THEREFROM BY THE OPENING OF SAID SECOND SWITCH WHEN SAID DROPPING RESISTOR IS MADE EFFECTIVE IN THE CIRCUIT BY THE OPENING OF SAID FIRST SWITCH, THE RESISTANCE PROVIDED BY SAID DROPPING RESISTOR AS COMPARED TO THE RESISTANCE PROVIDED BY SAID BLEEDER RESISTOR BEING EFFECTIVE TO MAINTAIN THE LOAD ON SAID FLASHER SUBSTANTIALLY CONSTANT.