Mechanism to convert rotary motion to transverse motion

A mechanism for converting rotary motion to transverse motion with high mechanical advantage comprising a housing adapted to be mounted on the frame of a bellows forming machine, an element journalled to rotate about its axis in said housing and provided eccentrically with a journal, a lever extending into said housing and connected to said element, a trunnion provided with a journal, a trunnionway connected to said housing adjacent said lever and supporting said trunnion for transverse linear movement of said trunnion within said trunnionway to said axis, a shaft journalled to rotate within the journal provided in said element, one end of said shaft being provided eccentrically with an axially extending first pin journalled to rotate within the journal provided in said trunnion, said shaft having a mounting means on the other end, forming means rotatably mounted on said mounting means, power means adapted to be mounted on said frame and connected to said lever, whereby said lever rotates said element and therefore moves said shaft and said trunnionway forces said trunnion to move said first pin and therefore rotate said shaft and thereby force said mounting means and said forming means in a linear direction transverse to said axis.