Transmission and constant speed accessory drive

A constant speed accessory drive system comprising:

• a transmission comprising;
• input and output drive members;
• radially inner and outer races,
• planetary members in rolling contact with said radially inner and outer races,
• said inner race and said outer race each comprising two axially spaced parts connected for rotation together and relatively axially moveable,
• means for selectively varying the axial separation of said two axially spaced parts of one of said races and thus the radial position of the planetary members in rolling contact therewith comprising an adjustment member and helical interengagement means interconnecting said adjustment member such that relative turning motion of said adjustment member results in relative axial displacement of the adjustment member,
• torque sensitive means sensitive to the torque applied between two drive-transmitting members of the transmission, said torque sensitive means acting both to determine the compensating variation in the separation of the parts of the other race and thus the transmission ratio of the transmission and to vary the forces exchanged between the planetary members and the races normal to the interface between them;
• a drive motor engaged with a self locking drive comprising a worm gear engaged with the adjustment member and a frictional member engaged with the worm gear;
• the self locking drive preventing turning movement of the adjustment member when the drive motor is not energized;
• a first endless member connecting a driver and the input drive member;
• a first accessory directly connected to a first end of the output drive member;
• and
• a second accessory driven by a second endless member engaged with the output drive member.