Rotary wing aircraft tail assembly and controls

Claim 2

IN ROTARY WING AIRCRAFT OF THE TYPE HAVING A FUSELAGE AND A SHAFT DRIVEN SINGLE ROTOR MOUNTED OVER THE FUSELAGE, MEANS TO CORRECT ROTOR TORQUE COMPRISING, A VARIABLE PITCH PROPELLER MOUNTED AT THE TAIL OF THE FUSELAGE FOR ROTATION ABOUT AN AXIS EXTENDING LONGITUDINALLY OF THE AIRCRAFT, MEANS TO DRIVE THE PROPELLER, A SHROUD ENCIRCLING THE PROPELLER DEFINING A LONGITUDINALLY EXTENDING AIR DUCT IN WHICH THE PROPELLER ROTATES AND CONCENTRIC TO THE PROPELLER AXIS, A VERTICAL RUDDER PIVOTALLY MOUNTED AT THE REAR OF THE SHROUD FOR HORIZONTAL DEFLECTION IN THE PROPELLER SLIPSTREAM, A CONTROL ROD CONNECTED TO THE RUDDER, A CONTROL ROD CONNECTED TO THE PROPELLER TO EFFECT PROPELLER PITCH CHANGES, A RUDDER BAR, MEANS INTERCONNECTING THE RUDDER BAR AND THE RUDDER AND PROPELLER CONTROL RODS SO THAT MOVEMENT OF THE RUDDER BAR WILL CAUSE MOVEMENT OF THE CONTROL RODS, A FUNCTION LEVER, AND MEANS INTERCONNECTING THE FUNCTION LEVER AND THE MEANS INTERCONNECTING THE RUDDER BAR AND CONTROL RODS TO VARY THE RELATIVE AMOUNTS OF CONTROL MOVEMENT GIVEN THE RESPECTIVE CONTROL RODS UPON RUDDER BAR MOVEMENT IN ACCORDANCE WITH PRE-SELECTED POSITIONS OF THE FUNCTION LEVER.

Claim 3

MECHANISM FOR CONTROLLING TWO SEPARATE INSTRUMENTALITIES IN VARYING RATIOS AS REQUIRED FOR PRE-SELECTED CONDITIONS COMPRISING, A FUNCTION LEVER, A MIXING UNIT INCLUDING A PAIR OF CENTER-PIVOTED LEVERS HAVING FLOATING PIVOTS WITH ONE ARM OF EACH LEVER BEING CONNECTED TO AN INSTRUMENTALITY TO BE CONTROLLED AND THE OTHER ARM OF EACH LEVER BEING CONNECTED TO THE FUNCTION LEVER BY A CONNECTION WHICH WILL IMPART MOVEMENT TO ONE MIXING UNIT LEVER WHEN THE FUNCTION LEVER IS MOVED IN ONE DIRECTION AND TO THE OTHER MIXING UNIT LEVER WHEN THE FUNCTION LEVER IS MOVED IN AN OPPOSITE DIRECTION, A DISCRIMINATOR UNIT INCLUDING A PAIR OF CENTER-PIVOTED LEVERS, RATIO RODS CONNECTED EACH TO ONE MIXING UNIT LEVER AT A MID-POINT ON THE MIXING UNIT LEVER FOR BODILY MOVEMENT OF THE MIXING UNIT LEVER AND TO ONE ARM OF ONE DISCRIMINATOR UNIT LEVER, MEANS INTERCONNECTING THE OTHER ARMS OF THE DISCRIMINATOR UNIT LEVERS TOGETHER FOR SIMULTANEOUS MOVEMENT, THE CONNECTIONS BETWEEN THE RATIO RODS AND THE SAID ONE ARMS OF THE DISCRIMINATOR UNIT LEVERS BEING SLIDABLE ALONG THE SAID ONE ARMS TO PLACE THE RATIO RODS CONNECTIONS AT VARYING DISTANCES FROM THE CENTER PIVOTS OF THE DISCRIMINATOR UNIT LEVERS, AND MEANS INTERCONNECTING THE FUNCTION LEVER AND RATIO RODS TO MOVE THE RESPECTIVE RATIO RODS IN OPPOSITE DIRECTIONS ALONG THEIR RESPECTIVE DISCRIMINATOR UNIT LEVER ARMS UPON MOVEMENT OF THE FUNCTION LEVER.

Claim 4

MECHANISM FOR CONTROLLING TWO SEPARATE INSTRUMENTALITIES IN VARYING RATIOS AS REQUIRED FOR PRE-SELECTED CONDITIONS COMPRISING, A FUNCTION LEVER, A MIXING UNIT INCLUDING A PAIR OF CENTER-PIVOTED LEVERS HAVING FLOATING PIVOTS WITH ONE ARM OF EACH LEVER BEING CONNECTED TO AN INSTRUMENTALITY TO BE CONTROLLED AND THE OTHER ARM OF EACH LEVER BEING CONNECTED TO THE FUNCTION LEVER BY A CONNECTION WHICH WILL IMPART MOVEMENT TO ONE MIXING UNIT LEVER WHEN THE FUNCTION LEVER IS MOVED IN ONE DIRECTION AND TO THE OTHER MIXING UNIT LEVER WHEN THE FUNCTION LEVER IS MOVED IN AN OPPOSITE DIRECTION, A DISCRIMINATOR UNIT INCLUDING A PAIR OF CENTER-PIVOTED LEVERS, RATIO RODS CONNECTED EACH TO ONE MIXING UNIT LEVER AT A MID-POINT ON THE MIXING UNIT LEVER FOR BODILY MOVEMENT OF THE MIXING UNIT LEVER AND TO ONE ARM OF ONE DISCRIMINATOR UNIT LEVER, MEANS INTERCONNECTING THE OTHER ARMS OF THE DISCRIMINATOR UNIT LEVERS TOGETHER FOR SIMULTANEOUS MOVEMENT, THE CONNECTIONS BETWEEN THE RATIO RODS AND THE SAID ONE ARMS OF THE DISCRIMINATOR UNIT LEVERS BEING SLIDABLE ALONG THE SAID ONE ARMS TO PLACE THE RATIO RODS CONNECTIONS AT VARYING DISTANCES FROM THE CENTER PIVOTS OF THE DISCRIMINATOR UNIT LEVERS, AND MEANS INTERCONNECTING THE FUNCTION LEVER AND RATIO RODS TO MOVE THE RESPECTIVE RATIO RODS IN OPPOSITE DIRECTIONS ALONG THEIR RESPECTIVE DISCRIMINATOR UNIT LEVER ARMS UPON MOVEMENT OF THE FUNCTION LEVER.