Limit stop control for synchro system

Claim 1

IN AN ELECTRIC SERVOMOTOR SYSTEM, A TRANSMITTER SYNCHRO HAVING ROTOR, A RECEIVER SYNCHRO ELECTRICALLY CONNECTED TO THE TRANSMITTER SYNCHRO AND HAVING A ROTOR WITH AN OUTPUT WINDING IN WHICH A REVERSIBLE POLARITY VOLTAGE IS INDUCED, A REVERSIBLE SERVOMOTOR CONNECTED TO DRIVE THE RECEIVER SYNCHRO ROTOR, POLARITY-SENSITIVE ELECTRORESPONSIVE MEANS CONTROLLING THE DIRECTION OF ROTATION OF THE SERVOMOTOR, MEANS CONNECTING THE RECEIVER SYNCHRO OUTPUT WINDING TO SAID ELECTRORESPONSIVE MEANS SO THAT SAID SERVOMOTOR NORMALLY DRIVES THE RECEIVER SYNCHRO ROTOR TO A POSITION CORRESPONDING TO THE POSITION OF THE TRANSMITTER SYNCHRO ROTOR BETWEEN FORWARD AND REVERSE LINITS OF TRAVEL DISPLACED MORE THAN 180* BUT LESS THAN 360* OF ROTARY MOVEMENT OF THE RECEIVER SYNCHRO, AN OVERRIDE SIGNAL GENERATOR HAVING AN OUTPUT VOLTAGE, MEANS INCLUDING A RESET SWITCH HAVING FORWARD, NEUTRAL AND REVERSE POSITIONS CONNECTING THE OVERRIDE SIGNAL GENERATOR TO THE ELECTRORESPONSIVE MEANS WITH A POLARITY TO CAUSE THE SERVOMOTOR TO DRIVE THE RECEIVER SYNCHRO ROTOR IN FORWARD AND REVERSE DIRECTIONS WHEN THE RESET SWITCH IS IN THE FORWARD AND REVERSE POSITIONS, RESPECTIVELY, SID OVERRIDE SIGNAL GENERATOR BEING DISCONNECTED WHEN SAID RESSET SWITCH IS IN THE NEUTRAL POSITION, AN ACTUATOR COUPLED TO ROTATE WITH THE RECEIVER SYNCHRO ROTOR ARRANGED TO ENGAGE AND ACTUATE THE RESET SWITCH PROGRESSIVELY TO THE NEUTRAL AND REVERSE POSITION, AND TO THE NEUTRAL AND FORWARD POSTIONS AS THE RECEIVER SYNCHRO APPROACHES, RESPECTIVELY, SAID FORWARD AND REVERSE LIMITS OF TRAVEL, AND POSITIONING MEANS MAINTAINING SAID RESET SWITCH IN SAID FORWARD, NEUTRAL, AND REVERSE POSITIONS UNTIL ACTUATED TO A DIFFERENT POSITION BY SAID ACTUATOR WHEN IT APPROACHES SAID FORWARD AND REVERSE LIMITS OF TRAVEL.