Abstract: A sand spreading system for a rail vehicle with driveable and/or brakeable rail wheels. The sand spreading system includes a sand box for storing spreading sand, a sand staircase which is fastened to the sand box for the compressed-air-controlled metering of the output of spreading sand, and a sand outlet tube which is connected to the sand staircase via a sand hose and opens in front of a rail wheel. By a heating device for generating a hot air flow passing through the spreading sand being integrated in the sand staircase, the spreading sand can be kept dry and pourable even in the wet and frost, and therefore the function of the sand staircase and hence the effective operation of the rail vehicle are assured.

Abstract: A sand stairway for a sand-spreading system of a rail vehicle has a stairway housing with a sand compartment for providing sliding spreading sand. A blow-out duct discharges spreading sand from the stairway housing. First and second nozzle inserts are releasably inserted into first and second receiving holes of a nozzle flange of the stairway housing above the sand compartment. The nozzle inserts are produced separately from the stairway housing. The first nozzle insert produces an air jet directed into the sand compartment and swirls up spreading sand. The second nozzle insert produces an air jet directed into the blow-out duct and swirls up spreading sand. A sand-spreading system for a rail vehicle has a sand stairway for the compressed-air-controlled metering of the discharged spreading sand. The novel sand stairway has increased flexibility and can be set up without great effort for using different types of spreading sand.

Abstract: A metering device is configured for fitting into a sand-spreading system of a rail vehicle. The metering device has a housing block, in which a sand path extends from a sand-feeding funnel into a vertical sand blow-out channel via a sand-mixing channel, which rises at an inclination from a sand-holding space to a sand deflection space. A pushing air tube is provided for producing an air flow that conveys spreading sand. The pushing air tube protrudes into the sand-mixing channel coaxially from the bottom. A nozzle insert is detachable inserted into an inflow channel, which leads into the sand deflection space from above. The nozzle insert is provided for producing an air jet directed downward into the sand blow-out channel. The amount of scattering sand that is discharged can be metered more precisely and the susceptibility of the metering device to wear is improved.

Abstract: A metering device is configured for fitting into a sand-spreading system of a rail vehicle. The metering device has a housing block, in which a sand path extends from a sand-feeding funnel into a vertical sand blow-out channel via a sand-mixing channel, which rises at an inclination from a sand-holding space to a sand deflection space. A pushing air tube is provided for producing an air flow that conveys spreading sand. The pushing air tube protrudes into the sand-mixing channel coaxially from the bottom. A nozzle insert is detachable inserted into an inflow channel, which leads into the sand deflection space from above. The nozzle insert is provided for producing an air jet directed downward into the sand blow-out channel. The amount of scattering sand that is discharged can be metered more precisely and the susceptibility of the metering device to wear is improved.

Abstract: A sand stairway for a sand-spreading system of a rail vehicle has a stairway housing with a sand compartment for providing sliding spreading sand. A blow-out duct discharges spreading sand from the stairway housing. First and second nozzle inserts are releasably inserted into first and second receiving holes of a nozzle flange of the stairway housing above the sand compartment. The nozzle inserts are produced separately from the stairway housing. The first nozzle insert produces an air jet directed into the sand compartment and swirls up spreading sand. The second nozzle insert produces an air jet directed into the blow-out duct and swirls up spreading sand. A sand-spreading system for a rail vehicle has a sand stairway for the compressed-air-controlled metering of the discharged spreading sand. The novel sand stairway has increased flexibility and can be set up without great effort for using different types of spreading sand.

Abstract: A sand spreading system for a rail vehicle with driveable and/or brakeable rail wheels. The sand spreading system includes a sand box for storing spreading sand, a sand staircase which is fastened to the sand box for the compressed-air-controlled metering of the output of spreading sand, and a sand outlet tube which is connected to the sand staircase via a sand hose and opens in front of a rail wheel. By a heating device for generating a hot air flow passing through the spreading sand being integrated in the sand staircase, the spreading sand can be kept dry and pourable even in the wet and frost, and therefore the function of the sand staircase and hence the effective operation of the rail vehicle are assured.

Abstract: The invention relates to a T-shaped hose composed of three branches made of rubber or similar material with a fabric lining. The three branches are arranged in the form of a "T", but are spaced apart from one another so as to define an uninterrupted, circumferentially-extending gap therebetween. The gap is then closed by a separate rubber compound. A non-adhering T-shaped tubular support made of rigid and thermally stable material is arranged in the interior of the hose within the T-zone, while the exterior T-zone of the hose is covered by a rubber layer.