Abstract: A laser ignition arrangement for an internal combustion engine (1) comprising a laser light generating device (3) and a combustion chamber window (7, 7?) through which laser light (5) for ignition of a combustible mixture can be introduced into a combustion chamber (11) of the internal combustion engine (1), wherein the laser light generating device (3) is suitable for introducing laser light of an intensity (I) of at most 0.15 mJ/mm2 or at least 3 mJ/mm2 into the combustion chamber (11), wherein the intensity (I) can be attained on a side of the clean combustion chamber window (7, 7?), which side is towards the combustion chamber (11).

Abstract: An internal combustion engine has a laser light generating device. The laser light generating device is suitable for delivering laser light with a transverse mode structure which varies in respect of time.

Abstract: The binding for a sports apparatus, particularly for a snowboard, ski, monoski, or snowshoe, with rotary closure, has a hub (34) fixed to the sports apparatus, about which hub a binding support plate (19) is rotatingly disposed. The binding support plate (19) is fixable in relation to a hub in the running position, and two binding bodies having holding means for a boot are secured thereto. Connected to the hub fixed to the sports apparatus is at least one element (36) receiving pulling and/or pushing forces, one end of which engages the hub (34, 35), and the other end of which is coupled to a holding device. Upon rotation of the binding support plate (19), the holding device fixes a boot in the binding or releases it as a function of the position relative to the hub through co-operation with the element (36) receiving pulling and/or pushing forces.

Abstract: The invention relates to a method of producing an air mattress, which comprises a pump part and a part, which is to be pumped up. A propellant is disposed in the pump part and the wall, which separates the pump part from the part, which is to be pumped up, has a one-way valve and a small opening, through which air can flow back from the part, which is to be pumped up, into the pump part. An inlet opening is disposed in the pump part and an outlet opening is disposed in the part, which is to be pumped up. Pursuant to the invention, a metallic tool is used for welding the pump part wall between the upper and lower covering skins of the air mattress. The tool forms one part of a high-frequency welding machine, having two plates, which lie against the outside of the covering skins. The tool is removed before the edge seals of the air mattress are produced. When the pump part is disposed within the air mattress, a dividable tool is used.

Abstract: An inflatable object, especially an air mattress, with a part acting as a pump and a part inflatable thereby. In the pump part there is a device for spreading its walls making it unnecessary initially to provide air via the user's mouth or a bellows. A particulate propellant material, which may also take the form of waste, is used. A propellant material is a material which can be compressed and which on decompression, with the introduction of air, increases its volume. To prevent propellant material particles from penetrating into the valve between the pump and the inflatable parts, an air-permeable wall is fitted in front of the valve.

Abstract: Allylaminoethyltriazoles of the formula: ##STR1## in which R is a hydrogen atom or an alkyl group containing 1 to 5 carbon atoms; each of Ar and Ar' is an unsubstituted phenyl group, a phenyl group substituted by one or more substituents selected from C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, nitro and halogen, an unsubstituted thienyl group, or a thienyl group substituted by halogen or naphthyl; phytophysiologically or pharmacologically tolerated acid addition salts thereof; and fungicidal and antimycotic agents containing such compounds.

Abstract: New allylaminoethylimidazoles of the formula: ##STR1## in which R is a hydrogen atom or an alkyl group containing 1 to 5 carbon atoms; each of Ar and Ar' is an unsubstituted phenyl group, a phenyl group substituted by one or more substituents selected from C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, nitro and halogen, an unsubstituted thienyl group, or a thienyl group substituted by halogen or naphthyl; phytophysiologically or pharmacologically tolerated acid addition thereof; and fungicidal and antimycotic agents containing such compounds.

Abstract: A water discus having a round, outwardly bulging plastic body having a hollow interior and a smooth water gliding exterior surface, and mounted on the periphery of the body an impact protection element in the form of a toroid generated by a circle. The hollow body is made up of a bottom section and a cover having a closable aperture. The cover is in clamping engagement with the bottom section. The bottom section has an annular wall laterally enclosing the hollow interior of the body. The height of the wall is less than the diameter of the circle. The bottom section has a floor which supports the wall and has a portion extending laterally beyond the wall. The floor also has an outwardly bulging obverse surface. The aforementioned laterally extending portion, and particularly an annular ridge formed thereon, supports the impact protection element. The minimum distance between an exterior point on the protective element and the obverse surface of the floor is no greater than 3 mm.