Abstract: A rotary piston filler with a plurality of cylinders and pistons around the periphery of the turret to fill containers rotating with the turret, a circumferential cam bar surrounding the turret, a cam follower following the cam bars and producing reciprocation of the piston, a lost motion connection between the cam follower and the piston in the connection for varying the magnitude of throw in the reciprocating movement of the piston.

Abstract: A sealing machine for polyethylene bags, having bag clamping and conveying chains, a pair of bag heating bands, a pair of bag cooling bands downstream of the heating bands, the adjacent heat transfer runs of both the heating and cooling bands having ends offset from each other in the direction of band movement, the band mounting wheels at each end of both bands being similarly offset, the adjacent heat transfer runs of the heating and cooling bands also lying parallel and flush against each other from end to end, stationary heat bars adjacent the heat transfer runs of the heating and cooling bands at which the bars respectively generate and absorb heat, and each heat bar having a plurality of very lightly spring pressed heat transfer elements or slides continuously engaging and transferring heat between the adjacent band and heat bar.

Abstract: In a liquid product measuring pump driven by an air motor having air valve controls for reversing the reciprocating motion of the air motor at the end of the stroke for controlling the liquid product measuring, an adjustable stop assembly including a quickly replaceable stop bar with an extendible threaded rod therein, the rod being minutely adjustable by an insert fitting on the mounting for the stop bar.

Abstract: Heater bars for a film sealing machine with traveling bands which grip and transfer heat to the film laminae, the heater bars having heat transfer slides spring pressed and guided for tilting in a horizontal plane against the bands and tiltable to accommodate variations in film thickness between the bands to continuously apply heat to all adjacent portions of the films traveling with the bands.

Abstract: A band sealer for sealing thermoplastic bags including superposed endless heat transfer bands and conveyor chains with adjacent bag-engaging and return runs immediately above rigid frame plates, a motor connected by chain driven and meshed pinions driving the conveyor chains, the sealing bands driven from band wheels overlying the chains, mounting brackets beneath the wheels with upstanding stub shafts upon which the wheels are journaled, each band wheel having a ring gear meshed with a pinion beneath the wheel and a sprocket coaxial with the pinion and meshed with the adjacent chain for driving the wheel.