Mechanism for Converting Two-Way to One-Way Rotation

The violet input gear may change rotation direction but the rotation direction of the orange output shaft keeps unchanged.
All gears are of the same tooth number.
Violet and blue gears are in mesh with yellow one.
Violet gear is in mesh with green one.
Pink and white springs are of opposite hand directions.
One spring end is fixed to gear.
The video shows two side views of mechanism alternately.

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