Abstract: A plastic reinforcement engaging the end wall of a bag tube includes an outlet surrounded by an outwardly extending flange which has the same curvature as the end wall and extends. This construction stiffens the stiffens the end wall and reduces the risk of the tube tipping over which it is rested upside down on its cap.

Abstract: A plastic reinforcement engaging the end wall of a bag tube includes an outlet surrounded by an outwardly extending flange which has the same curvature as the end wall and extends. This construction stiffens the stiffens the end wall and reduces the risk of the tube tipping over which it is rested upside down on its cap.

Abstract: A plastic reinforcement engaging the end wall of a bag tube includes an outlet surrounded by an outwardly extending flange which has the same curvature as the end wall and extends. This construction stiffens the end wall and reduces the risk of the tube tipping over which it is rested upside down on its cap.

Abstract: Abraded dust arising during operation of a disc brake and having the effect of contaminating the environment may be collected and stored in a container of the disc brake according to the invention. This container should be large enough to enable it to accumulate as much abraded dust as is generated in the course of the lifetime of a pair of brake shoes. The container preferably includes a housing embracing one part of the brake disc, and a filter disposed between the housing and the brake disc. The filter is constructed of several layers of the same type or of different types and includes an arrangement adapted to guidedly introduce into the filter the air stream carrying the dust abraded off the brake components during the operation of the brake. In a filter made of two layers, these layers may be held to advantage fastened in their place by a flow guide grating or lattice adapted to guide the air stream with abraded dust in its flow into the filter.

Abstract: A lid catch on a container driven with superpressure is disclosed. A prestressed spring catch bolt is held in an engaged position due to the pressure exerted on an inner lid of the container which is transmitted by a counterpoise to the bolt. Therefore, releasing of the lid when the container is pressurized is impossible.

Abstract: For securing together a pair of skis and ski sticks a pair of holder members are secured one on the upper face of each ski, and a pivoted securing arm on each holder member can be moved into a position in which it is locked to the holder member of the other ski, thereby retaining the skis and the ski sticks irremovably together. The holder members may be secured to the skis by screws which have a protective cover to prevent access. The locks may have a pivotable protective snow cover. Preferably at least some of the components are coated with a water-repellant plastics material.

Abstract: An air-hydraulic blind-riveting tool has a chuck which is normally urged into a ready position by a spring and which is drawn into a retracted position by a fluid-operated piston connected via a hydraulic link to an air piston subdividing an air chamber of the tool into a front and a rear compartment. The front compartment is vented to the outside and the rear compartment is connectable via a trigger-operated valve to a source of compressed air. Thus when this rear compartment is pressurized the air piston is displaced forward and the working piston connected to the chuck is retracted. A valve is provided between the rear compartment and the atmosphere which comprises a valve disk displaceable by pressure in the rear compartment against a valve seat to prevent air from leaving the rear compartment but normally urged by a relatively stiff spring away from this valve seat.