Metso Paper Inc.

Hannu Villgr&eacute;n

Antti Leinonen

Seppo Kiviranta

Samppa J Salminen

Osmo Nikulainen

Heikki Karttunen

Miikka Kettunen

Mika Viertola

Kari Lamminm&auml;ki

Aimo N&auml;rv&auml;inen

Jukka Pihlajasaari

Atte Marttinen

The invention concerns a loading device for the dewatering a web-forming wire, which supports and/or loads the wire of a paper machine and scrapes water from the wire surface. The loading device is loaded by a pressure medium and includes a movable loading member and a fixed base member. The loading member includes a longitudinal groove which extends the length of the loading member and the base member includes a slide rail adapted to be received in the longitudinal groove for supporting the loading member. In order to eliminate jamming phenomenon of the loading member, the loading member is supported evenly in its position in a cross machine direction and it is adapted to move towards the wire and away from the wire with aid of rollers arranged between the slide rail and the internal walls of the loading member which define the longitudinal groove.

Loading device including a loading member for supporting and dewatering a web forming wire

The invention relates to a roll for a paper or board machine comprising axle journals on whose support the roll is arranged to revolve, end flanges with which the axle journals are connected, and a mantle which is connected with the end flanges. The mantle is provided with a number of openings extending through the mantle and/or recesses formed into the outer surface of the mantle, which openings and/or recesses form a regular pattern. Solid connecting portions in the outer surface of the mantle around said openings and/or recesses are opened so that, from each opening and/or recess, there is a connection, provided in the form of a groove or an additional recess extending into the outer surface of the roll mantle, with at least each of the openings and/or recesses adjacent to it.

Roll for a paper or board machine

The invention relates to a roll for a paper or board machine comprising axle journals on whose support the roll is arranged to revolve, end flanges with which the axle journals are connected, and a mantle which is connected with the end flanges. The mantle is provided with a number of openings extending through the mantle and/or recesses formed into the outer surface of the mantle, which openings and/or recesses form a regular pattern. Solid connecting portions in the outer surface of the mantle around said openings and/or recesses are opened to that, from each opening and/or recess, there is a connection, provided in the form of a groove or an additional recess extending into the outer surface of the mantle, with at least each of the openings and/or recesses adjacent to it.

Growing community of inventors

Jyväskylä, Finland

Hannu Villgrén

Growing community of inventors

Jyväskylä, Finland

Hannu Villgr&eacute;n

Hannu Villgrén