The Whitworth quick return motion mechanism has the driving crank AC=150 mm long.
The distance between fixed centres CD= 100 mm. The line of stroke of the ram passes
through the centre of rotation of the slotted lever whose free end is connected to the
ram by a connecting link. Find the ratio of time of cutting to time of return.

Transcribed Image Text:

A2 P1 D P2 A1 -- + R1 R R2 B/2 30 A Whitworth quick return motion mechanism A2 P1 D P2 A1 -- + R1 R R2 B/2 30 A Whitworth quick return motion mechanism