rocking arm वाक्य

Both end with a cam ( obscured in the attached sketch ), which via a follower and a rocking arm holds one end of each rope.
The design utilised the motion of the outside valve rods ( the rods transmitting the motion of the driving axles to the valves, such as the combination lever ) instead, although the restricted space between the back of the outside cylinders and the front driving wheels made it impossible to locate the rocking arms controlling the conjugating mechanism in the vicinity.