Theory
Whitworth quick return mechanism is the inversion of a single slider crank chain. Single slider crank chain consists of three turning pairs & one sliding pair. The main aim is to convert rotary motion into reciprocating motion but reversed stroke is quicker in comparison with forwarding stroke. This mechanism is different from the crank and slotted lever quick return mechanism. In the whitworth slotted lever makes full 360 degree rotation while in crank and slotted lever it doesn’t make full 360 degree rotation.
DIFFERENTIAL INDEXING MECHANISM
Application
Shaper Machine : Whitworth Quick Return Mechanism is used in Shaper machines
Slotting Machine : Whitworth Quick Return Mechanism is also used in Slotting Machine.