Double stream stacker and jogger

Claim 1

Apparatus for stacking and jogging cut sheets continuously in double stacks, comprising a base frame connected to two side walls and a central divider panel arranged to define a pair of side-by-side chambers open at the front, rear and top, a horizontal elevator disposed in each chamber and means to raise and lower each elevator, a plurality of vertically disposed spaced stop fingers at the front of each chamber mounted to act as a forward stop for sheets being fed to the chamber, a pair of vertically disposed jogger plates in each chamber and a means for reciprocating one of said plates toward and away from said divider panel and the other of said plates toward and away from said stop fingers, said means including a single motor device connected by eccentrics and linkage means to both pairs of jogger plates, said means for reciprocating said jogger plates further including a motor with a vertical shaft, a pair of horizontal, centrally pivoted levers connected by eccentrics to the motor shaft at one end and pivotally coupled at their other end to a pair of piston rods, each secured to one of the jogger plates and reciprocable forward and away from said stop fingers, a second pair of centrally pivoted levers pivotally coupled to said pair of piston rods at one end and pivotally connected to forwardly extending link rods at their other ends, the free ends of the link rods being each pivotally secured to one arm of a bell crank whose other arm is pivotally secured to one of a second pair of piston rods each secured to one of the jogger plates and reciprocable toward and away from said central divider.