A plurality of parallel layers of fibers are laid in two crossed directions on a disposable support mandrel, pins are temprorarily implanted in the mandrel (15) composed of foam material in regions of evolution of its shape and at points where it is desired to change the direction of the fiber, a continuous thread (33) is stretched out between the pins so as to form crossed superimposed layers, an...

A high-frequency signal booster which has at least one channel unit including a down-converter for converting input signals into intermediate-frequency signals and an up-converter for converting time into output signals. The respective up- and down-converters are separately equipped with station-originating signal oscillators. Further, the station-originating signal oscillator provided for the up-...

A high-frequency signal booster which has at least one channel unit including a down-converter for converting input signals into intermediate-frequency signals and an up-converter for converting time into output signals. The respective up- and down-converters are separately equipped with station-originating signal oscillators. Further, the station-originating signal oscillator provided for the up-...

A high-frequency signal booster which has at least one channel unit including a down-converter for converting input signals into intermediate-frequency signals and an up-converter for converting time into output signals. The respective up- and down-converters are separately equipped with station-originating signal oscillators. Further, the station-originating signal oscillator provided for the up-...

Novel 13-spiro-2'-[tetrahydrofuran]-milbemycins of the formula I (I) in which X represents one of the groups -CH(OR1)-, -C(=O)- or -C(=N-OH)-; R1 represents hydrogen or a OH-protecting group; R2 represents methyl, ethyl, isopropyl or sec.-butyl or the group -C(CH3)=CH-A in which A represents methyl, ethyl or isopropyl; and R3 represents hydrogen; C1-C10-alkyl; C1-C10-alkyl substituted by...

Novel 13-spiro-2'-[tetrahydrofuran]-milbemycins of the formula I (I) in which X represents one of the groups -CH(OR1)-, -C(=O)- or -C(=N-OH)-; R1 represents hydrogen or a OH-protecting group; R2 represents methyl, ethyl, isopropyl or sec.-butyl or the group -C(CH3)=CH-A in which A represents methyl, ethyl or isopropyl; and R3 represents hydrogen; C1-C10-alkyl; C1-C10-alkyl substituted by...

This invention relates to catalyst supports, such as are used in catalytic converters for vehicles, and in other applications, such as diesel particulate traps. The invention discloses a novel composition for a catalyst support, and a method of making it. The support includes a base material, such as a stainless steel. If the base material is a metal, it can be rolled down to the thickness of a fo...

The invention concerns a safety ring for preventing the nuts unthreading from the stud bolts of a vehicle wheel. An annular element 1 has a number of openings 2 in which a grip sleeve 3 is rotatably arranged. The grip sleeve has a through-hole 4 intended to receive the nut. A spring element 5 pre-tensions the grip sleeve with a spring force tending to turn the grip sleeve, and with it the nut, tow...

Support element, for example beam, consisting of two layers of fibre board 1, 2 arranged at a distance from one another and connected by spacer elements made of fibre board which have been bent to form angled profiles which have been glued to the panels 2, 3.

The electrical insulation material fits around a winding of round painted wire in tracks in a stator of an electrical machine for frequency conversion or other high voltage operation. The overcoat applied to the insulation material in situ comprises an organic polymer contg. a powdered filler of chrome oxide, iron oxide, or a mixt. of the two. The amt. of the overcoat volume attributable to the tw...

The transformer DC winding id divided into a number of part windings which are connected to series-coupled six pulse bridges, in which the individual valve functions are simplified, comprising a very small number of high effect thyristors in each valve. The three-phase convertor has its part windings on the DC side arranged using Y, delta and Z couplings, with the composition of the Y and delta wi...