Low profile plate filter

Abstract From the Canadian patent

A filter includes a lower filter plate mounted to a frame, an upper filter plate movably mounted above the lower filter plate and filter paper between the two plates. A number of shafts are mounted to the frame below the lower filter plate and extend past opposite sides of the filter. Elongate crank arms and eccentrically positioned tie rod connection pins are secured to the ends of the shafts. The upper ends of the tie rods are mounted to opposite sides of the upper filter plate. The tie rods' lower ends are pivotally mounted to the tie rod connections for eccentric movement about the axes of the shafts. A pneumatic ram is used to rotate one of the shafts through an actuator arm keyed to …