Abstract:
Paper transport system for printing presses includes a drive roller, a deflection drum disposed in spaced relationship with the drive roller, and a conveyor belt extending around the drive roller and the deflection drum, the conveyor belt having first regions formed with engagement elements, as well as second and substantially smooth-surfaced regions, the drive roller and the deflection drum, respectively, being subdivided into axially separate, respective roller and drum segments rotatable independently of one another and surrounded by the first and the second regions of the conveyor belt, the conveyor belt being of such construction between the first regions and the second regions thereof that small relative movements are possible therebetween in a longitudinal direction of the conveyor belt.
Abstract:
Device for facilitating sheet separation in an upper region of a feeder pile, whereat a separating device is disposed for removing a respective uppermost sheet from the pile and feeding it to a further processing unit, includes a turnable bushing having a guide, and a blower having a vertically adjustable blower body mounted with preloading on the turnable bushing.
Abstract:
A method of feeding, aligning and holding a sheet on a cylinder of a sheet-processing machine, which includes, prior to an occurrence of a gripping operation on a sheet at a cylinder of a sheet-processing machine, forcing a leading edge of the sheet into a contact position wherein the leading edge of the sheet is pressed against moving front lays which are guided over the cylinder, opening sheet grippers carried by the cylinder, inserting the leading edge of the sheet which is in the contact position into the sheet grippers, and maintaining the leading edge of the sheet in the contact position with the front lays until just before closing the sheet grippers; and a device for performing the method.
Abstract:
A ball bearing in a conveyor device for sheets includes ball guide bodies having ball guide openings formed therein. Balls are to be disposed in the openings. The ball guide bodies have lateral contact slits formed therein through which the balls can be removed and replaced through the ball guide openings by contact with the balls from the outside.
Abstract:
A sealing device for a dampening unit on an offset printing press having a channel for receiving a dampening-solution supply and defined by a dampening-solution applicator roller and a metering roller which roll on one another, and having a seal holder mountable on a side part of the dampening unit and being in contact engagement with a sealing element, closing off one end of the channel, the sealing element having formed with an overflow opening for excess dampening solution, comprising a drain passage located between the sealing element and the seal holder and formed by a cutout on a side of the sealing element facing away from the channel, the cutout being connected with the overflow opening.