Pulse train generator employing triggered self-recirculating pulse-circuit and counter producing synchronizable but independent output pulsetrain of selectable length

Claim 1

APPARATUS FOR GENERATING A TRAIN OF PULSES, COMPRISING A SOURCE OF SIGNAL PULSES, A GATE CIRCUIT, FIRST AND SECOND BISTABLE MULTIVIBRATORS, SAID GATE CIRCUIT BEING ENABLED BY SAID FIRST BISTABLE MULTIVIBRATOR TO ALLOW A SINGLE SOURCE PULSE TO PASS THROUGH AND SWITCH SAID FIRST BISTABLE MULTIVIBRATOR, DISABLING SAID GATE CIRCUIT, AND CAUSING SAID FIRST BISTABLE MULTIVIBRATOR TO SWITCH TO A COINCIDENT STATE WITH SAID SECOND BISTABLE MULTIVIBRATOR, MEANS FOR DERIVING A PULSE FROM THE COINCIDENT OUTPUT OF SAID BISTABLE MULTIVIBRATORS TO SWITCH SAID SECOND BISTABLE MULTIVIBRATOR FROM THE COINCIDENT STATE, MEANS FOR DELAYING SAID PULSE AND APPLYING THE DELAYED PULSE TO AGAIN SWITCH SAID SECOND BISTABLE MULTIVIBRATOR INTO COINCIDENCE WITH SAID FIRST BISTABLE MULTIVIBRATOR THEREBY GENERATING A SERIES OF PULSES AT THE OUTPUT OF SAID DELAY CIRCUIT EQUALLY SPACED AT A PREDETERMINED INTERVAL, AND MEANS FOR COUNTING SAID DELAYED PULSES TO PROVIDE A PULSE OUTPUT AFTER A PREDETERMINED COUNT TO SWITCH SAID FIRST BISTABLE MULTIVIBRATOR TO ITS INITIAL STATE AND STOPPING THE PULSE GENERATING ACTION.