Tuner with single knob clutchable to either turret or individual channel verniers

Claim 1

IN A TURNER FOR A TELEVISION RECEIVER HAVING CHANNEL SELECTING MEANS AND A PLURALITY OF CAM SCREWS FOR PRESETTING A FINE TUNING ELEMENT, THE COMBINATION OF A ROTATABLE SLEEVE AND A SLEEVE GEAR MOUNTED THEREON, A FIRST ROTATABLE MEMBER ENGAGEABLE WITH THE CAM SCREWS FOR ADJUSTMENT THEREOF, A SECOND ROTATABLE MEMBER OPERATING THE CHANNEL SELECTING MEANS, SAID ROTATABLE SLEEVE AND SLEEVE GEAR BEING MOUNTED CONCENTRICALLY WITH SAID FIRST ROTATABLE MEMBER, A CLUTCH LOCATED ON THE INTERIOR END OF SAID SLEEVE TO MUTUALLY ENGAGE SAID SLEEVE AND FIRST MEMBER, A DRIVE GEAR MOUNTED ON SAID SECOND ROTATABLE MEMBER AND IN ENGAGEMENT WITH SAID SLEEVE GEAR, A SPRING BIASING SAID CLUTCH IN ENGAGEMENT, AND S SINGLE KNOB ON SAID FIRST ROTATABLE MEMBER AND OPERABLE FROM WITHOUT THE RECEIVER TO IMPART TORQUE BY SAID FIRST ROTATABLE MEMBER TO SAID ROTATABLE SLEEVE AND SAID SECOND ROTATABLE MEMBER, SAID KNOB BEING DEPRESSIBLE AGAINST SAID SPRING TO DISENGAGE SAID CLUTCH, SAID FIRST ROTATABLE MEMBER FURTHER BEING AXIALLY OPERABLE BY SAID KNOB SO THAT WHEN SAID KNOB IS DEPRESSED TO DISENGAGE SAID CLUTCH, SAID FIRST ROTATABLE MEMBER WILL BE CAUSED TO POSITIVELY ENGAGE A CAM SCREW TO PROVIDE ADJUSTMENT THEREOF WHILE SAID SECOND ROTATABLE MEMBER REMAINS STATIONARY.