Cam Pin Slide
Known as a cam pin, angle pin, horn pin, etc., this is the most common and versatile of all slide mechanisms. It is driven by the opening of the press. The action of the angled pin withdrawing from the angled hole drives the slide back. Springs hold the slide in the retracted position. Upon press closing the cam pin returns to drive the waiting slide back almost to molding position. Finally then the lock seats against the back of the slide, driving it to its home position and clamping it there for the duration of the next shot.