Abstract: A data record contains at least the following data values: spatial coordinates of a reference point at each eye of the wearer; a spatial direction vector for specifying a viewing direction of the wearer through the spectacle lens; and a spatial rim curve or edge curve. The data record can be used to produce a spectacle lens. A method and a computer program for generating the data record, and a method for producing the spectacle lens are also disclosed. It is possible to produce the spectacle lens after a single capture of a data record for adapting the spectacle lenses to the wearer of the pair of spectacles and to the spectacle frame selected by the wearer. A different spectacle lens as the spectacle lens originally selected can subsequently be used as the spectacle lens without having to record a further data record for the adaptation for the wearer.

Abstract: The sheet-stacking apparatus stacks sheets arriving in a stream of successive sheets. A stop face configuration is pivotable, about a geometric pivot axis located at a predetermined level and oriented crosswise to the stream, between a working position wherein it stops the sheets and a position that is pivoted away from it. The system enables accurate, straight-edged stacks, both in the successive buildup of one stack and in the formation of a succeeding stack without interrupting the stream of sheets. In a first variant a carrier profile is provided, which is located above the pivot axis in the working position and past which, in the working position, stop face segments protrude downward in comblike fashion. In a second variant, a carrier profile with auxiliary stops protruding past it is disposed, adjustable in height, below the pivot axis.

Abstract: A device for manipulating stacks formed of sheets for a rotary printing press by which the sheets are processable in a processing direction in a so-called nonstop operation, the device including an auxiliary stack support having a cantilevered end and being disposed in an operating position thereof so as to catch the sheets from below, and a carrier carrying the auxiliary stack support so that it is displaceable in and counter to the processing direction, includes a bearing carried by the carrier for supporting at an operating level the cantilevered end of the auxiliary stack support disposed in the operating position thereof, the bearing being adjustable between a functional position into which it has been lowered below the operating level and a functional position wherein it supports the cantilevered end at the operating level.

Abstract: Method for depositing different products produced by a printing press in a continuous printing operation, the printing press having at least one controllingly variable printing form, includes separating the products from one another in accordance with a control varying the printing form, and feeding the products individually to a further processing location, and a device for performing the method.

Abstract: Method of changing sheet piles on a sheet-fed printing press, which includes introducing a sheet pile rake above a main sheet pile for forming an auxiliary sheet pile, further includes laying at least one rotatably mounted wedge on an upper edge of the main sheet pile so as to form a wedge-shaped space; and device for performing the foregoing method.

Abstract: A device for the controlled removal of pieces of waste material is provided. The device has a non-rotatable cylinder shaft having an outer surface; a cylinder jacket having an inner surface and an outer surface and having at least one through-hole extending between the inner surface and the outer surface of the cylinder jacket, the cylinder jacket rotatable around the cylinder shaft; and sealing strips between the outer surface of the cylinder shaft and the inner surface of the cylinder jacket. The outer surface of the cylinder shaft, the inner surface of the cylinder jacket and the sealing means define a pressure chamber and a vacuum chamber, so that upon rotation of the cylinder jacket around the cylinder sleeve the at through-holes alternately connect with the pressure chamber and the vacuum chamber. The waste pieces are created when a pair of knives disposed on the outer surface of the cylinder jacket cut a moving web.