TRAME

A Trame clutch, also known as a cam clutch or freewheel, is a one-way clutch that allows rotation in one direction while blocking it in the other. It is designed to engage and transmit torque when rotated in the driving direction, and to freewheel when rotated in the opposite direction.
These clutches are commonly used in applications where reciprocating motion needs to be converted into one-directional motion, such as in indexing mechanisms or automatic transmissions.