This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
DescriptionScotch yoke animation.gif
Scotch Yoke is a mechanism for converting the linear motion of a slider into rotational motion or vice-versa. Individual frames drawn with TurboCAD v12; Sequence GIF created by Animated GIF producer 3.2.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the licence, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible licence as the original.
Animation created specifically for Wikipedia article on the Scotch Yoke mechanism in about an hour on 4 January 2007. Individual frames drawn with TurboCAD v12. Sequence GIV created by Animated GIF producer 3.2.