The dimensions of different links of the crank and slotted lever quick-return mechanism shown in Figure are given below :
O1 O2 = 700 mm, O1B = 250mm
O2D = 1250 mm, DR = 350mm.
The crank O1B rotates at 40 r.p.m. in the counter clockwise direction and at the present instant of consideration makes an angle of 45° with the vertical.
Determine :
(i) Velocity of the ram R which moves in a horizontal direction.
(ii) Angular velocity of link O2D.
