Automatic aircraft throttle control apparatus

Claim 1

IN AN AIRCRAFT HAVING A DEVICE FOR GENERATING AN ERROR SIGNAL WHEN THE AIRCRAFT DEVIATES FROM A REFERENCED AIR SPEED, APPARATUS RESPONSIVE TO THE ERROR SIGNAL FOR AUTOMATICALLY CONTROLLING THE THROTTLE OF AN ENGINE OF THE AIRCRAFT TO MAINTAIN THE AIRCRAFT AT THE REFERENCED AIR SPEED, SAID APPARATUS COMPRISING; A SERVOMOTOR HAVING AN ELECTRICAL CONTROL INPUT AND A ROTATABLE OUTPUT SHAFT; MOTOR DRIVE MEANS RESPONSIVE TO SAID ERROR SIGNAL FOR PROVIDING A CONTROL SIGNAL TO OPERATE SAID SERVOMOTOR, SAID DRIVE MEANS HAVING AN INPUT CONNECTION ADAPTED FOR COUPLING WITH THE OUTPUT OF SAID DEVICE AND AN OUTPUT CONNECTION FOR DELIVERING SAID CONTROL SIGNAL; MEANS COUPLING SAID ELECTRICAL CONTROL INPUT OF THE SERVOMOTOR WITH THE OUTPUT CONNECTION OF SAID DRIVE MEANS, SAID SERVOMOTOR INCLUDING STRUCTURE FOR CONVERTING THE CONTROL SIGNAL FROM SAID DRIVE MEANS INTO DEGREES OF ROTATION OF SAID SHAFT; A RATE GENERATOR OPERABLY COUPLED WITH SAID SHAFT; CIRCUIT MEANS COUPLING THE OUTPUT OF SAID RATE GENERATOR WITH SAID DRIVE MEANS FOR PROVIDING NEGATIVE FEED-