Shaft rocking mechanism

Claim 1

A SHAFT ROCKING MECHANISM FOR ROCKING A SHAFT FROM ONE REST POSITION TO A SECOND REST POSITION AND RETURN SAID SHAFT BEING ADAPTED FOR CONNECTION TO A MOVABLE ELEMENT WHEREBY SAID ELEMENT WILL RECIPROCATE FROM ONE ANGULAR POSITION TO A SECOND ANGULAR POSITION AND RETURN; SAID MECHANISM COMPRISING A SHAFT, PIVOTAL SUPPORT MEANS FOR SAID SHAFT, A BELL CRANK HAVING ITS APEX AFFIXED TO SAID SHAFT, A V-SHAPED CAM SLOT WITHIN THE BODY OF SAID BELL CRANK HAVING ITS APEX POSITIONED ADJACENT SAID BELL CRANK APEX, CAM MEANS ACTING WITHIN SAID SLOT TO OSCILLATE SAID BELL CRANK TO THEREBY ROCK SAID SHAFT FROM ONE REST POSITION TO A SECOND REST POSITION AND RETURN, A PILOT ARM OPERATIVELY CONNECTED TO SAID BELL CRANK THROUGH A CAM STUD ON THE BELL CRANK PROJECTING INTO AN ELONGATED SLOT WITHIN THE PILOT ARM, PIVOTAL PILOT ARM SUPPORT MEANS, SPRING MEANS SECURED TO SAID PILOT ARM AND TO SAID CAM MEANS, SAID BELL CRANK BEING OPERATIVE THROUGH SAID CAM STUD AND ELONGATED SLOT PROJECTION TO PIVOT SAID PILOT ARMS TO SUCCESSIVELY POSITION SAID SPRING MEANS TO DRAW SAID CAM MEANS PAST THE APEX OF SAID V-SHAPED CAM SLOT AFTER EACH OSCILLATION OF SAID BELL CRANK TO RECOCK SAID MECHANISM AND ACTUATING MEANS OPERATIVELY CONNECTED TO SAID CAM MEANS TO SUCCESSIVELY MOVE SAID CAM MEANS AGAINST THE EXTREMITY OF THE LEGS OF SAID CAM SLOT TO THEREBY ROCK SAID SHAFT TO ONE OF SAID REST POSITIONS.