This inverted slider-crank is the form of a slider-crank linkage that is often used to actuate a hinged joint in construction equipment like a crane or backhoe, as well as to open and close a swinging gate or door.
[1][2][3] A slider-crank is a four-bar linkage that has a crank that rotates coupled to a slider that moves along a straight line.
When the slider begins to move back into the tube, the connecting rod pulls the wheel round to complete the rotation.
Application- Whitworth quick return mechanism, Rotary engine, etc...
Applications - Slotted crank mechanism, Oscillatory engine etc.., This inversion is obtained when link 4 (slider) is fixed.