Steering brake and clutch control

A steering brake and clutch control, comprising:

• first and second primary control levers respectively pivotally mounted for movement about first and second parallel axes between respective brake-release and brake-engage positions;
• first and second clutch control levers respectively pivotally mounted for movement about third and fourth parallel axes between respective clutch-engage and clutch-release positions;
• first and second valve means respectively operatively associated with the first and second clutch control levers and controlled by the latter so as to be respectively conditioned for routing pressure fluid for effecting clutch-engagement when the first and second clutch control levers are in their clutch-engage positions for draining clutch-engagement pressure when the first and second clutch control levers are in their clutch-release positions and for partially draining clutch-engagement pressure to establish partial clutch-disengagement when the first and second control levers are in intermediate positions between their clutch-engage and clutch-release positions;
• interlocking means interconnecting the first and second clutch control levers for preventing simultaneous rotation of the latter from their respective clutch-engage to their respective clutch-release positions while permitting the first and second clutch control levers to be individually rotated;
• first and second yieldable connection means respectively interconnecting the first primary control lever and the first clutch control lever, and interconnecting the second primary control lever and the second clutch control lever;
• said first and second yieldable connection means being respectively located for causing the first and second clutch control levers to move toward their respective clutch-disengage positions when the first and second primary control levers are moved toward their respective brake-engage positions.