Abstract: A hose bridge for bridging a hose extending over a surface, for example a fire hose for conveying water for extinguishing purposes, has a passage for the hose and defines a support surface that can rest on the surface. The transverse dimension of the passage in a direction transverse to the support surface is smaller than the nominal diameter of the hose and the circumferential dimension of the passage essentially corresponds to the circumferential dimension of the hose.

Abstract: Testing device for wipper hooks on vessels. The testing device comprises a pontoon to be positioned against the vessel on which the wipper hooks have to be tested. The pontoon can be displaced relative to the vessel with the help of winches. On the pontoon traction elements are provided to exert a traction force on the wipper hook to be tested. This force is measured by a load cell integrated in the line system connecting the pontoon and the wipper hook during testing.

Abstract: Face-gear transmissions have been used hitherto only for secondary applications, with little running hours and low loads. They form a type of underdeveloped angle transmissions. When analyzing said underdevelopment, it was surprisingly found that well-known gear theory had not been applied correctly. Especially the teeth-tip-height can be increased considerably in the region where the face-gear teeth have increased pressure angles, resulting in considerably increased loading capacity and meshing quotient, all based on meshing cooperation with standard cylindrical gears with either straight (spur) or helical teeth. The angle between the transmission shafts may be 90.degree., less or over, the shafts may intersect or cross.