J. M. Voith Gmbh

Hans Weiss

Hans-Joachim Fissmann

Hans-Albrecht Ruff

Albrecht Meinecke

Christian Schiel

Karl Steiner

Hans-Peter Sollinger

Rudolf Beisswanger

Josef Mullner

A device for feeding the leader of a paper web from below to a rolling machine roll, with a number of guide plates which direct the web leader upward and which, viewed in the web running direction, are arranged increasingly more steeply and eventually vertically, additionally with blowing organs that feature each a hollow body arranged transverse to the web running direction and a number of nozzles arranged in the web running direction, and which, viewed in web running direction, are arranged each between two overlapping guide plates. The invention is characterized in that at least the blowing organ which, in the web running direction, precedes the first vertical plate features turbulence-generating nozzles.

Web leader guiding device utilizing turbulence-generating nozzles

A winder for winding a running paper web is provided that includes a first and a second support roller that together form a winding bed to hold a paper roll with the paper web wound around the first support roller. The winding bed consists of the first and the second support rollers. The first and the second support rollers are fixed into position with the second support roller being positioned lower than the first support roller so that a plane through the axes of the first and the second support rollers forms an angle with a horizontal plane. The first and the second support rollers each having a liner. The liner of the second support roller is considerably more deformable than the liner of the first support roller.

Winder for rewinding a web, especially a paper web

A coating apparatus, for applying a coating substance to a paper web, has a chamber from which the coating substance is supplied via a slit type mouth communicating with an applicator space which is defined by the paper web and a doctor blade element. At the web, on the side of the applicator space from where the paper web enters, a throttling passage is formed by a back-pressure element in such a manner that a stream of excess coating substance issues from the applicator space via the throttling passage and abruptly separates from the web and in so doing flows away from the web predominantly as a film thereby preventing completely or almost completely the admission of air into the applicator space by the air boundary layer adjacent the moving web.

Method and apparatus for coating running webs

The clamping head features a cylindrical section engaging the winding core with a threading which digs in inside the core and a subsequent collar forming a stop for the end face of the core. To obtain a form fit which spares the core, the threading is fashioned as a round threading.

Clamping head for winding cores

A clamping head is equipped with angular spreading bodies which engage a winding core. Impingement of the winding core end face on a stop moves the spreading bodies longitudinally on a bevel of the clamping head core against spring force, thereby spreading the spreading bodies so as to engage the inside circumference of the winding core. To that end, the clamping head features a sleeve-shaped part which centers the winding core and is provided with longitudinally extending slots for the angular spreading bodies. A shank of each spreading body, extends radially outward, forms at least indirectly the stop for the winding core end face. Longitudinally movable in the slot, the other shank of the spreading body has a projection which protrudes radially inward and interacts with the bevel of the clamping head core so as to cause the shank to move beyond the peripheral surface of the sleeve-shaped part as the projection runs onto the bevel. The clamping head secures the winding core in both nonpositive and form-fitting fashion in that the spreading body shanks dig into the winding core. It is distinguished by a design from components which are relatively simple to manufacture and of which the spreading bodies exposed to wear can be replaced easily.

A clamping head is shown having a cylindrical portion engaging an interior portion of an associated winding tube and a collar or flange which axially abuts against the axial end face of the associated winding tube; extending axially between the cylindrical portion and the collar or flange is a conical portion of longitudinally extending serration; the teeth of such serration start, from the diameter of the cylindrical portion, beginning with a zero cross-section and increase toward the collar or flange with steadily increasing geometrically similar cross-section.

Clamping head for centering and clamping winding tubes

In a belt pressing unit, which preferably serves as wet press of a paper machine, an elastic tubular press belt travels around a supporting body and, together with a back roll, forms an extended press zone. Beyond the press zone along the path of the press belt, liquid is fed to the inner side of the press belt in order to cool the press belt. This liquid is permitted to travel, together with the press belt, around the supporting body. Most of the liquid is then removed from the press belt, preferably at a position in front of the press zone. The liquid may then be cooled and fed back to the press belt. In addition, liquid may also be fed to the inner side of the press belt where the press belt enters the press zone, for cooling and lubricating a pressing surface of a press shoe which presses the press belt toward the back roll. Furthermore, control circuits may be provided, one for sensing the temperature of the liquid removed from the press belt and controlling the cooling of the press belt, and another for sensing the pressing surface temperature and controlling its cooling.

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Heidenheim, Germany

Hans Weiss