Input: green gear
Output: orange gear that rotates faster that the input.
The tube is cut off half for easy understanding.
The mechanism is used to couple the vertical shaft in the tube, with another drivetrain having a horizontal shaft to share torque. This is used in an integrated axes wind turbine concept for torque transmission at high wind speeds (US patent 14992022-developed by Bal Govind and Vignesh Gurumurthy).