Antenna nutation mechanism with polarization control

Claim 1

MECHANISM FOR NUTATING A WAVEGUIDE FEED HORN ADAPTED TO PROPAGATE ELECTROMAGNETIC WAVES COMPRISING AN OUTER HOUSING, AN INNER HOUSING DISPOSED WITHIN AND HAVING A FORWARD PORTION PROJECTING OUTWARDLY FROM ONE END OF THE OUTER HOUSING, ANTIFRICTION BEARINGS BETWEEN SAID HOUSINGS FOR SUPPORTING THE INNER HOUSING FOR ROTATION ABOUT A FIRST AXIS RELATIVE TO THE OUTER HOUSING, A MOTOR OPERATIVELY CONNECTED TO THE INNER HOUSING FOR ROTATING THE LATTER ABOUT SAID FIRST AXIS, SAID FEED HORN BEING DISPOSED WITHIN AND HAVING A FORWARD PORTION EXTENDING OUTWARDLY FROM THE FORWARD PORTION OF THE INNER HOUSING, ANTIFRICTION BEARINGS BETWEEN SAID FEED HORN AND INNER HOUSING FOR SUPPORTING THE HORN FOR ROTATION ABOUT A SECOND AXIS RELATIVE TO THE INNER HOUSING, SAID AXES BEING ANGULARLY RELATED AND INTERSECTING AT A POINT ADJACENT TO THE END OF THE HORN OPPOSITE FROM THE FORWARD PORTION THEREOF, COUNTERWEIGHT MEANS CONNECTED TO SAID INNER HOUSING ON THE SIDE OF SAID FIRST AXIS DIAMETRICALLY OPPOSITE FROM THE SECOND AXIS, TUBULAR MEANS CONNECTED TO THE REAR END OF THE FEED HORN AND EXTENDING REARWARDLY THEREFROM COMPRISING A FLEXIBLE SLEEVE AND A RIGID SLEEVE INTERCONNECTED TO THE FLEXIBLE SLEEVE, A FLEXIBLE COAXIAL LINE CONNECTED TO SAID FEED HORN AND EXTENDING THROUGH SAID TUBULAR MEANS, AND A POLARIZATION CONTROL MOTOR OPERATIVELY CONNECTED TO SAID RIGID SLEEVE AND ADAPTED TO ROTATE SAME THROUGH A SELECTED ANGLE WHEREBY TO CORRESPONDINGLY ROTATE SAID FEED HORN RELATIVE TO THE OUTER HOUSING.