Abstract: The invention pertains to a pressure chamber scraper for application of a liquid medium onto a rotating drum, said pressure chamber scraper having an axially extending scraper head, that together with an axially extending dosing scraper touching the mantle surface of the drum and with a sealing scraper forms a chamber in the circumferential direction, in said chamber there is an axially extending displacement element to form a pressure compartment and an outlet compartment and leaving an application gap to the mantle surface of the drum, and the liquid medium for wetting of the mantle surface flows through said gap, wherein the medium is supplied through an inlet opening into the pressure compartment. According to the invention, it is proposed that the displacement element and scraper head have mutually facing contact surfaces which bound at least one gap between them which opens into the pressure compartment and connects it to the inlet opening, so that the medium can move into the pressure compartment.

Abstract: The invention pertains to a pressure chamber scraper for application of a liquid medium onto a rotating drum, said pressure chamber scraper having an axially extending scraper head, that together with an axially extending dosing scraper touching the mantle surface of the drum and with a sealing scraper forms a chamber in the circumferential direction, in said chamber there is an axially extending displacement element to form a pressure compartment and an outlet compartment and leaving an application gap to the mantle surface of the drum, and the liquid medium for wetting of the mantle surface flows through said gap, wherein the medium is supplied through an inlet opening into the pressure compartment. According to the invention, it is proposed that the displacement element and scraper head have mutually facing contact surfaces which bound at least one gap between them which opens into the pressure compartment and connects it to the inlet opening, so that the medium can move into the pressure compartment.

Abstract: One rotary knife carrier of a pair of carriers in a cross cutter for running webs of paper, cardboard or the like has longitudinally extending peripheral recesses for disposable elongated strip-shaped knives each of which has a first lateral surface abutting and slidable along a supporting surface of the carrier in the respective recess, and a second lateral surface contacted by a retaining surface of an elongated clamping member which is urged against the second lateral surface by the head(s) of one or more tensioning bolts having shanks extending with clearance through openings in the clamping member and into tapped bores in the carrier. The clamping member is in form-locking frictional and/or mechanical engagement with the knife and is shiftable relative to the carrier to adjust the knife, e.g.

Abstract: Apparatus for ascertaining the width, the length, the coarseness of cut edges and/or other selected characteristics of sheets of paper or the like has a sheet testing unit employing one or more cameras for the monitoring of a sheet which is maintained in a predetermined position at a predetermined location, a feeding unit which supplies sheets to be tested from a source of sheets to the predetermined location, and an evacuating unit which withdraws freshly tested sheets from the predetermined location. Signals denoting the results of tests can be used to regulate the operation of the machine or production line which makes and/or processes the sheets, and the evacuated satisfactory tested sheets can be returned into such machine or production line.