In Fig. 84 the follower roll has been abandoned, and the original pointed follower substituted. The motion of the follower point, however, instead of being in a straight line, is in the arc of a circle precisely as in Fig. 83, except that the follower, being a point instead of a roll, the points L1, L2, L3, etc., have the outline of the cam drawn directly through them. This case is introduced merely for the purpose of making the set of cams complete, and it is so closely a counterpart of Fig. 83 that the detail study of it is considered unnecessary.

Fig. 84. Diagram of Cam with Pointed Follower on Oscillating Arm.