Abstract: A lateral positioner and adjust mechanism is provided for an unwind station of a web press. The unwind station includes first and second arms pivotally mounted to a frame that cooperate for supporting for rotation a roll on a shaft. The arms can be raised and lowered to raise and lower the roll. In the subject mechanism, a wheel is mounted to a first end of the shaft extending beyond the first supporting arm, the wheel defining in its periphery a groove having opposing side walls. Each of the side walls defines an outward bevel. A block attached to the first arm defines thereon a ridge extending upwardly perpendicular to the shaft, the ridge having opposing side walls, each of which includes a bevel. The ridge is fittable within the groove. The block can be selectively moved toward and away from the first arm in a direction parallel to the shaft. As the roll shaft is raised into position, the ridge and groove engage, moving the shaft into correct lateral position.

Abstract: A mechanism is provided for engaging a first gear with a second gear that is used to connect and disconnect a brake mechanism and a roll shaft within the unwind station of a web press. The first gear is mounted for rotation to a first shaft secured to a frame, while the second gear is carried for rotation on a member movable with respect to the frame. The member may be moved in a manner that will move the second gear along a path from a first disengaged position to a second engaged position. The mechanism includes a rigid support member pivotally mounted to the first shaft for pivotal movement about the shaft toward and away from the path along which the second gear is moved. A third gear is rotatably mounted on the support member and engages the first gear. A fourth gear is also rotatably mounted on the support member, the fourth gear being engaged with the third gear and adjacent to but not engaged with the first gear.

Abstract: A quick-release mounting for a cutting wheel comprises a housing adjustably mounted in an arm, and a hollow shaft rotatably supported in the housing. The shaft has an expandable collet hub on which a wheel can be received. A mandrel extends within the shaft and has a tapered part to expand the collet hub; the mandrel is spring loaded toward expanding the hub, and a handle on the mandrel allows thrusting the mandrel in opposition to the spring load for release of a wheel. Locking members guard against accidental release of a wheel from the shaft, and an adjustable stop prevents over-tightening the collet hub. Adjustments of the mounting to mount or dismount a wheel and to change position thereof can all be accomplished without need for tools.