Abstract: A glue applicator for applying glue to a paper web used in the manufacture of paper cores is disclosed. A drive roller having a surface of frictional character rotates a glue applicator roller and a doctor roller, these rollers coupled by sprockets and a chain. The doctor roller is adjustable so that a gap between the doctor roller and glue applicator roller may be adjusted, adjusting thickness of a layer of glue applied to the paper web. A motor having an overrunning clutch is coupled to the glue applicator roller and doctor roller, so that during intervals when the paper web is not passing through the glue applicator, the glue applicator roller may be continuously rotated in liquid glue, preventing glue from hardening on the glue applicator roller and doctor roller.

Abstract: Core plugs, which are intended for insertion in the ends of cores on which large rolls of paper are wound, are lifted and maneuvered into position by an apparatus having an elongated horizontal spreader beam that rides on an overhead track. The beam has support arms mounted on each end, the arms being movable horizontally on the beam by a worm gear apparatus. The support arms each carry a hook that reaches downward for grasping of axially extending stubs at the outer ends of core plugs. Each arm has a pneumatically actuated rod with a clamping block on its lower end. The blocks are projectable downward to engage the stubs and secure the core plugs in position on the hooks. Vertical movement of the plugs is provided by a hoist which raises and lowers the beam. With the plugs in place at each end, the paper roll is lifted onto a supporting cradle in position for insertion of spindles of a mill stand. This supports the roll as the paper is being unwound.

Abstract: Heat transferring liquid is pumped by a peristaltic pump from a reservoir through a heat exchanger to a disposable applicator pad through flexible conduits. The heat exchanger is provided with thermoelectric diodes which, under control of electronic circuitry, may absorb heat from or transfer heat to the liquid. Further, the control circuitry permits adjustment of the temperature of the applicator pad, whether hot or cold.