Abstract: An apparatus for detection of format accuracy of a web of corrugated board that comprises a first and second smooth liner and a corrugated paper web disposed there-between, is equipped with at least one sensor which detects grooves running in a conveying direction of the web of corrugated board, and/or a lengthwise cut, and/or lateral edges.

Abstract: A machine for producing corrugated cardboard incorporates a corrugating roll and a glue roll extending parallel to the former in such a way that a glue gap is formed between the two. To adjust the glue gap, the bearing of the glue roll is pushed against the bearing of the corrugating roll with a contact-pressure force A. By means of an adjusting unit the distance of the two bearings is reduced until the force of the bearing contact pressure, which is measured by a force measuring unit, decreases due to a contact occuring between the glue roll and the corrugating roll. The glue roll may have stop rings at its ends to prevent a direct contact between the glue roll and the corrugating roll.

Abstract: An apparatus for detection of format accuracy of a web of corrugated board that comprises a first and second smooth liner and a corrugated paper web disposed there-between, is equipped with at least one sensor which detects grooves running in a conveying direction of the web of corrugated board, and/or a lengthwise cut, and/or lateral edges.

Abstract: A machine for the manufacture of a single-face lined web of corrugated board comprises a pressing device for pressing a liner web against a paper web provided with a corrugation. This pressing device has at least one substantially stationary, open-end pressing belt, which does not move together with the web of corrugated board.

Abstract: An apparatus for longitudinally slitting and/or grooving material sheets, particularly for sheets of corrugated board, which are being transported through the apparatus. The apparatus includes a plurality of tool members positioned in rows on opposing sheet sides which cooperate in opposing pairs. Each set of rows includes a drive shaft and an adjusting spindle in operable communication with the tool members which include tool body members and which can be conducted within the apparatus along guide rails and can be coupled through controllable couplings to the adjusting spindles. Each tool body member also includes a plurality of tool members where at least one of the tool body members and guide rails are adjustable within the apparatus to position the opposing pair of tool members in the operating positions in engagement with the sheet.