Abstract: The invention relates to a method for preheating a pressed material mat (14) spread on an endlessly and continuously circulating molding band (6) during manufacture of wood material boards, wherein microwaves from one or both press surface sides are beamed into the pressed material mat (14) to preheat the pressed material mat (14) and the pressed material mat (14) is compacted and hardened by application of pressure and heat after transfer to a continuously operating press (1). The invention consists of microwaves in a frequency range of 2400-2500 MHz being used to heat the pressed material mat (14), wherein the microwaves for each press surface side are generated from 20 to 300 microwave generators (26) with magnetrons (20) of a respective output of 3 to 50 kW.

Abstract: The invention relates to a method for preheating a pressed material mat (14) spread on an endlessly and continuously circulating molding band (6) during manufacture of wood material boards, wherein microwaves from one or both press surface sides are beamed into the pressed material mat (14) to preheat the pressed material mat (14) and the pressed material mat (14) is compacted and hardened by application of pressure and heat after transfer to a continuously operating press (1). The invention consists of microwaves in a frequency range of 2400-2500 MHz being used to heat the pressed material mat (14), wherein the microwaves for each press surface side are generated from 20 to 300 microwave generators (26) with magnetrons (20) of a respective output of 3 to 50 kW.

Abstract: The invention relates to a drivetrain for a motor vehicle which has a first and a second axle and a chassis. The drivetrain comprises a drive unit which is mounted to the chassis in the region of the first axle and has an output shaft. Further, the drivetrain comprises a propeller shaft arrangement which is connected to the output shaft and to an input member of a differential which is mounted to the chassis in the region of the second axle. The propeller shaft arrangement comprises at least a first propeller shaft section and a second propeller shaft section which are connected to one another by means of an articulated joint. The propeller shaft arrangement is mounted to the chassis in the region of the articulated joint. The second propeller shaft section of the propeller shaft arrangement is connected rigidly to the input member of the differential. The second propeller shaft section is mounted in the region of the articulated joint and is designed to resist bending moments around the second axle.

Abstract: A device for actuating the doors of vehicles, in particular of an aircraft. The device comprises a drive element, which co-operates with a door lock. A lifting motion of a shaft element and a subsequent rotational motion of a follower element are carried out in an actuation device by a drive element.

Abstract: The invention relates to a drivetrain for a motor vehicle which has a first and a second axle and a chassis. The drivetrain comprises a drive unit which is mounted to the chassis in the region of the first axle and has an output shaft. Further, the drivetrain comprises a propeller shaft arrangement which is connected to the output shaft and to an input member of a differential which is mounted to the chassis in the region of the second axle. The propeller shaft arrangement comprises at least a first propeller shaft section and a second propeller shaft section which are connected to one another by means of an articulated joint. The propeller shaft arrangement is mounted to the chassis in the region of the articulated joint. The second propeller shaft section of the propeller shaft arrangement is connected rigidly to the input member of the differential. The second propeller shaft section is mounted in the region of the articulated joint and is designed to resist bending moments around the second axle.

Abstract: Veneer panels which are to be joined in a plurality of layers one above the other and one behind the other are assembled and glued to form an endless strand of veneer laminates. In the process, the veneer panels are first fed in through a glue-application machine which applies a layer of glue on a top side of the veneer panels onto a buffer belt. The veneer panels are then transferred from the buffer belt to a horizontally reversing feed belt which forms on a roller table a first veneer assembly comprising a plurality of veneer panels. The first veneer assembly is raised about its front end by an angle .alpha. into an oblique position so that veneer panels of a subsequent veneer assembly can be threaded into the first veneer assembly using the horizontally reversing feed belt. The first and subsequent veneer assemblies are thereby combined into a veneer-panel strand, and transferred to a continuously operating prepress and press.

Abstract: The invention relates to a connecting assembly for use in the propeller shaft in the driveline of a motor vehicle between the end of a tubular shaft, especially made of a composite material, and a connecting piece positioned coaxially relative to the shaft end. The shaft and connecting piece have connecting structures which inter-fit in the circumferential direction. The tubular shaft is designed to sustain without damage greater impacting force in the longitudinal axial direction than is required to displace the connecting piece relative to the shaft in this direction.

Abstract: Novel 2-tert-butyl-4-methylcyclohexanol derivatives of the general formula I ##STR1## where R.sup.1 is alkyl of 1 to 3 carbon atoms or an acyl group ##STR2## where R.sup.2 is alkyl of 1 to 5 carbon atoms, and a process for their preparation, their use as scents, and scent compositions containing compounds of the formula I.Particularly interesting compounds are 2-tert-butyl-4-methylcyclohexyl acetate and propionate.

Abstract: A power transmitting shaft for a torque transmission assembly is formed with a tubular cross section having bores arranged radially in the tube wall at at least one tube end and with bushes inserted into the bores. The bushes are provided with recesses for receiving joint journals or the like whose longitudinal axis is arranged radially in the tube for the purpose of introducing a torque, with tangential and radial forces occurring at the transmitting face of the tube wall. The bushes are designed as a truncated cone which is tapered towards the tube interior and with a cone angle .alpha. selected to be such that the radial component of the forces to be transmitted at the transmitting face is minimized or eliminated.

Abstract: A mixture of Z- and E-2-[2-methylprop-1-en-1-yl]-4-methyltetrahydropyran isomers, of the formulae Z-I and E-I ##STR1## containing not less than 85% of Z-I and not more than 15% of E-I, is prepared by a process wherein 2-[2-methylprop-1-en-1-yl]-4-methylenetetrahydropyran of the formula II ##STR2## is hydrogenated over a platinum dioxide or platinum/charcoal catalyst in the presence of a strongly acidic cation exchanger. The product is a useful fragrance material which also occurs naturally and is known as rose oxide.

Abstract: New 1-acyl- and 1-hydroxymethyl-cyclododecanes and -cyclododecenes. The new 1-acyl-cyclododecenes and -cyclododecanes are obtained by a Rupe or Meyer-Schuster rearrangement, with or without subsequent hydrogenation in the presence of Ni, Pd and Pt catalysts. The 1-acyl-cyclododecenes and -cyclododecanes are valuable scents of the basic type of the sought-after macrocyclic musk scents. Furthermore, they are used for the manufacture of numerous other new 1-substituted or 1-and 2-substituted cyclododecenes and cyclododecanes having good scent characteristics.

Abstract: The preparation of bicyclic enol-ethers (I) ##STR1## (where n is from 3 to 12, and R.sup.1, R.sup.2 and R.sup.3 may be H or C.sub.1 --C.sub.4 -alkyl) by free radical adduct formation of CHR.sup.1 =CR.sup.2 --CHR.sup.3 --O--R.sup.4 (III)(where R.sup.4 is tert.-butyl, tetrahydrofuran-2-yl or tetrahydropyran-2-yl) with a cyclic ketone (IV) ##STR2## followed by acid-catalyzed cyclization, and novel compounds II ##STR3## The compounds (I) and (II) are intermediates for the synthesis of musk-like fragrances.

Abstract: New macrocyclic ketolactones, especially 15-methyl-15-ethyl- and 15,15-dimethyl-12-oxo-15-hydroxytetradecanecarboxylic acid lactone.The new ketolactones have an intense and delicate woody musky odor and may be employed as scents and fixatives.

Abstract: 2,6,10-Trimethyl-dodecan-1-al and its 4,8-diene and processes for their manufacture. The new compounds are manufactured by vinylation or ethynylation and subsequent partial hydrogenation of 2-methyl-butan-1-al, reaction of the resulting 4-methyl-hex-1-en-3-ol with a propenyl ether in the presence of an acid catalyst at elevated temperatures, or reaction of the resulting 4-methyl-hex-1-en-3-ol with an .alpha.-formyl-propionic acid ester at elevated temperatures, subsequent vinylation of ethynylation and partial hydrogenation of the resulting 2,6-dimethyl-oct-4-en-1-al, renewed reaction with a propenyl ether or an .alpha.-formyl-propionic acid ester and -- if desired -- catalytic hydrogenation of the resulting 2,6,10-trimethyl-dodeca-4,8-dien-1-al. The organoleptic properties of the new compounds greatly resemble those of the natural scents and aromas of oranges, namely .alpha.- and .beta.-sinensal.