Abstract: In a screw conveyor the conveyor screw is arranged in a casing where there is at least one support fastened to the casing between the ends of the conveyor screw, the conveyor screw being mounted in the support via a bearing which is sealed by a seal. Included in the seal there are two sealing devices which are unrotatably but axially displaceably mounted on the screw shaft, and which are urged axially from opposite directions to press with a respective sealing portion against a corresponding sealing portion on the support. The sealing portions are situated radially outside the bearing. Each sealing device at its end facing away from the support engages against a sealing element, which in turn connects to the screw shaft.

Abstract: A feeding device for a vertical tube conveyor supplying the goods towards the lower input end of the conveyor consists of at least one vertical feeding wing rotatable around the lower end of the conveyor, the wing having a vertical elongation from the lower end of the casing of the conveyor to or beyond the lowest end of the conveyor, said wing forming a helix curve running from one point close to the casing, the angle between the tangent of the curve and the direction of rotation along the major part of the curve being such that the tangential force from the wing does not counteract the feeding of the goods into the supplier.

Abstract: In a discharge gate arrangement for cargo hoppers for bulk cargo, a cover is guided for sliding in its own plane between a closed and an open position. The cover is also mounted for movement towards and away from the plane of the discharge opening at the end of the closing movement and the beginning of the opening movement, respectively. In the closed position the cover presses against a gasket laid around the opening, providing a gas- and liquid-tight seal.

Abstract: The invention relates to an arrangement in ship holds for bulk cargo, for example coal. The hold bottom has one or more rows of discharge openings and is substantially flat on at least one side of the rows of discharge openings. A plurality of drivers are arranged in succession on the flat bottom and are displaceable by drive motors in a direction transverse to said row so as to feed the cargo to the openings.

Abstract: A device for opening and closing bottom outlets of a plurality of cargo pockets arranged in rows, preferably in holds in bulk cargo ships, conveyors being arranged beneath the pockets. A guide arrangement extends longitudinally along the bottom of a row of pockets and carries covers for the bottom outlets of the pockets. Said covers are journalled for horizontal movement in the longitudinal direction of the guide arrangement between opened and closed positions. At least one carriage can be moved parallel to said guide arrangement and can be driven forward to an arbitrary cover. Said carriage is provided with a drive movable from an inoperative position to a position in which they are engaged with the chosen cover in order to, during subsequent movement of the carriage in either direction, move the cover to an open or closed position. Then the drive can be moved to the inoperable position in order to allow the movement of the carriage to another cover.