Input: pink crank rotating continuously.
Output: yellow ratchet wheel rotating interruptedly.
Six-bar linkage (pink crank, blue conrod, yellow and violet levers, orange pawl and green rocker) makes the green rocker oscillate.
Two red stoppers are mounted on the green rocker.
Measure to create some breaking force for the green rocker is not shown.
The mechanism is quiet because when the rocker goes back, the pawl does not contact the wheel.