Patent ID: 6159342
Filing Date: 2000-12-12
Classification: D21F

Abstract:
A shoe press for pressing a running fibrous web against a counter roll, comprising:a press shoe having a first side adapted to coact with the counter roll to form an extended nip therebetween through which the running web is carried;a supporting frame spaced from a second side of the press shoe opposite the first side;a plurality of spaced-apart hydraulic loading cylinders disposed between the frame and the press shoe, each loading cylinder being formed of a piston and a tubular cylinder which slidably receives the piston, one of the piston and cylinder being a fixed member which is fixed relative to the frame and the other being movable, the piston and cylinder defining a working chamber therebetween which is pressurizable with hydraulic fluid; andan elongate duct member attached to the supporting frame and disposed contiguous to the fixed member of each of the loading cylinders, the duct member having a common duct formed therein which extends adjacent to each of the loading cylinders and a plurality of passages extending from the common duct to the loading cylinders, and each loading cylinder having a passage formed in the fixed member thereof which communicates with the corresponding passage in the elongate duct member, whereby the working chambers of the plurality of loading cylinders are all supplied with fluid from the common duct.