Stationary support device for drainage wire

Details Stationary support device for drainage wire Stationary support device for drainage wire

1991-05-31

1992-07-14

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

162374, D21F 154

Patent

active

051299925

ABSTRACT:
A stationary support device for the drainage wire screen of a fiber web forming section. The cover ledge over which the drainage screen passes has a front edge which the screen passes and then the drainage surface beneath the wire screen diverges from the wire screen in the wire screen advancing direction. The cover ledge is of hard material. The front part of the cover ledge is supported by a support at a rigid pivot joint. The rearward part of the cover ledge is supported by wedge surface connections for permitting adjustment of the tilt orientation of the cover ledge with respect to the drainage wire. Leaf type clamping springs disposed between the cover ledge and the support, disposed rearwardly of the front joint and disposed forwardly of the wedge surface connections. The clamping leaf springs being connected to the cover ledge by tie rods at the center of the spring and to the support by tie rods at the ends of the springs. In an alternate embodiment, the clamping element is an expandable pressure hose connected at opposite sides by tie rods to the cover ledge and to the support. A ball and socket joint enables the slide disk and the wedge shaped angle inclination surfaces to seat together.

REFERENCES:
patent: 3017930 (1962-01-01), Dunlap
patent: 3027940 (1962-04-01), Dunlap
patent: 4184915 (1980-01-01), Metcalf
patent: 4865692 (1989-09-01), Kade et al.

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