Transfer mechanism in a glassware forming machine

Claim 1

In a glassware forming machine having a non-handed transfer mechanism for transferring newly-formed hot glassware from a dead plate to a conveyor movable in two directions, the transfer mechanism comprising: a fluid motor including a pair of parallel cylinder bores, a shaft fixed to the fluid motor central to the center line between the cylinder bores, a pair of reciprocative pistons having ringed piston heads slidable within respective cylinder bores and extending therefrom through respective guide bushings, a base plate mounting the shaft and being pivotable about a substantially vertical axis through at least 90°, with the center line between the cylinder bores intersecting the swinging axis of the base plate, a piston tie plate connected to the free ends of the piston rods, for constraining the piston rods to unison movement in parallelism, a pusher plate mounted on the piston tie plate, finger plates mounted on and extending forwardly of the pusher plate, a piston stop bar connected to the pusher plate for arresting the pusher plate and pistons at the end of the extending stroke, resilient piston return-stroke cushions on the fluid motor for cushioning the pistons against vibrations at the completion of their return strokes, a clevis fork on the tie plate, a clevis pin insertable in the clevis fork for the pivotal attachment of a stop bar, and fine adjustment means for preventing impingement of the stop bar, and being pivotally attached to the piston tie plate by way of a slot and clevis arrangement, the stop bar being capable of being pivoted from a normally horizontal operating position to an inoperative or servicing position extending approximately vertically and marginally over-center in order to maintain its upright attitude by abutting against the piston tie plate.