Page 493 - Cam Design Handbook
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THB14  9/19/03  7:58 PM  Page 481

                                   SPECIAL CAM MECHANISMS                  481




















                      FIGURE 14.29. Variable-angular-velocity cam (schematic).


                                   Follower


                                                        Follower
                              1
                              0






                                        1
                                             Driver
                                             arm
                                          Cam
                                                                         Cam
                                                      Driver
                                    Roller
                                                         Roller




            FIGURE 14.30. Variable-angular-velocity cam (Whiteworth drive mechanism).


            14.26 CAM INTERMITTENT-MOTION
            MECHANISMS

            14.26.1 Comparison of Intermittent-Motion Mechanisms

            Intermittent-motion mechanisms, sometimes called indexing mechanisms, are among the
            most useful devices available to machine engineers. These mechanisms have been applied
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