The figure below is a lever mechanism in a lifting device. Draw the lever full size and show all points of tangency and the construction lines.
This question is on combination of (1) the tangency of lines and circles, (2) tangency of curves and circles and (3) tangency of circles. The centre of the curves are determined by either the addition or subtraction of the given radius or dimension of the tangential parts. The required solution is given below:
