Abstract: A stuffer box crimping device has a pair of feed pressure rolls and a stuffer box arranged downstream thereof. The stuffer box is laterally delimited by side panels extending up to a nip of the pressure rolls. Pressure plates are supported in the side panels at the level of the pressure roll nip, the pressure plates being in contact with end faces of the rolls with an adjustable pressure. In order to prevent the heating up of the pressure plates during rotation of the pressure rolls, the pressure plates are designed to be cooled during operation. For this purpose, a unit is provided for supplying a cooling liquid against the pressure plate; the liquid being continuously discharged again from the unit after contacting the pressure plate.

Abstract: A fiber bale press is equipped with a hooping mechanism for applying wire-hoops to a fiber bale produced by the press. The press has at least one pressing plate and a counter pressure plate as well as a hoop material supply device. The hoop material is steel wire cut to suitable lengths for forming hoops. The steel wire ends are secured to each other by a sealing member, such as a tubular metal sleeve, which receives one steel wire end in each of its ends. The tubular metal sleeve is rigidly secured to the ends of the hoop forming wire by a crimping mechanism. Preferably the steel wires are hooped around a bale in a cross-over relationship so that at least the wire-hoops close to and in parallel to a bale edge are held in place by wire-hoops running perpendicularly to the bale edge. This mechanism avoids loops at the ends of the baling wire.

Abstract: A baling press for fibrous materials, such as textile fibers, is equipped with a baling box into which a baling ram is movable under hydraulic or pneumatic pressure. The baling box is supported on a base and has hinged walls which are hinged to one another and/or to the base. These hingeable box walls are locked to each other in the box closing position by a piston cylinder locking device in which the piston rod is provided at its free end with a locking member which cooperates with a respective locking element attached to the adjacent wall.