Another modified Geneva Wheel or Maltese Cross. In this one, the length of the actuator pin changes, following a slot on the base. This reduces the maximum speed of the cross by 40%. It also makes the movement more linear. This mechanism works in both directions.
Modeled with Solidworks 2015.
Rendered with Simlab Composer 6 Mechanical Edition.
Video at https://youtu.be/qRqeE6KArDY.