Abstract: A hydraulically expandable hub having a collection groove and a vent port to prevent the leakage of oil upon the shaft to which the hub is mounted and a method for using such a hub is disclosed. The oil collection groove is located along the inside diameter of the hub between each end of the hub and the oil groove also located on the inside diameter of the hub. A vent port is connected to the collection groove so a vacuum source can be coupled to the hub. The negative pressure produced by the vacuum source at the collection groove sweeps or pulls oil seepage from the oil groove into the collection groove which is transported to the hub exterior through the vent port. Such a hub can be altered in position about the shaft without leaving oil residue along the shaft.

Abstract: A hydraulically expandable hub having a collection groove and a vent port to prevent the leakage of oil upon the shaft to which the hub is mounted and a method for using such a hub is disclosed. The oil collection groove is located along the inside diameter of the hub between each end of the hub and the oil groove also located on the inside diameter of the hub. A vent port is connected to the collection groove so a vacuum source can be coupled to the hub. The negative pressure produced by the vacuum source at the collection groove sweeps or pulls oil seepage from the oil groove into the collection groove which is transported to the hub exterior through the vent port. Such a hub can be altered in position about the shaft without leaving oil residue along the shaft.

Abstract: A slitting machine of the type having a pair of spaced, parallel arbors and at least one pair of mating rotary knives, each arbor carrying one mate of each pair of rotary knives, each rotary knife being positioned in a desired axial relationship with its mate on the other arbor, this desired relationship being maintained by manual or automatic control of the relative positions of the arbors by rotatably mounting at least one end of at least one arbor in a slideable sleeve which may be cam driven in both axial directions. Axial backlash is reduced by maintaining the arbors in compression with a spring loaded tailstock.

Abstract: A method and apparatus for applying a hydraulically expandable hub to a shaft by the use of a fixture for mounting the hub square to the end of the shaft as the hub is applied. The fixture comprises a pair of relatively slideable rings, one of which supports the hub as it is applied to the end of the shaft and the other of which slides over a small bearing support end of the shaft and maintains the two rings square relative to the shaft axis as the hub is applied.

Abstract: A scroll-type slitting machine of the type having upper and lower arbors, each having a plurality of mating rotary cutting members, a movable housing rotatably supporting ends of the upper and lower arbors, a fixed housing rotatably supporting opposite ends of the upper and lower arbors, and a mechanism for vertically adjusting at least one of the arbors relative to the other, includes the improvement which consists of a pinion stand mounted outboard of and adjacent one of the housings, upper and lower intermeshing, synchronizing gears rotatably mounted within the pinion stand, and upper and lower torque-transmitting couplings extending between and operatively joining the upper and lower synchronizing gears to the upper and lower arbors, respectively, while permitting relative movement between the arbors.