Abstract: The device has two mutually parallel slats extending crosswise to the running direction of the wire, namely an approach slat and a departure slat which with a wire guide surface each touch the revolving wire. Contained between the two slats is a blowing slot connected to a compressed air supply. Forming between the approach slat and the wire is a wedge-shaped gore tapering in the wire running direction, into which gore empties a water spray system. The departure slat has a step type clearance at the point where the wire leaves the wire guide surface.

Abstract: This device, preferably formed as a dual paper machine, has according to a preferred embodiment two endless screens, mainly a lower screen (21) and an upper screen (22). The lower screen (21), on which is formed a paper web, and the upper screen (22) are moved together in the lower part of a dehydration cylinder (25) arranged in the upper screen. Both screens (21,22) are unrolled from the rising lower quadrant of said cylinder (25) and are laid on the upper part of the support cylinder (26) arranged in the lower screen (21). The bandage of the dehydration cylinder (25) has hollows which absorb water from the screens along their arcs of contact with the cylinder and which project the water towards the inside of the loop formed by the screens of the cylinder. In the feed direction of the screens and downstream of the support cylinder (26), there is arranged a receiving container (36) for the projected water.