摘要:
This invention relates to an apparatus for false twisting synthetic filament yarns, which apparatus is in the form of an air rotated nozzle having tangential inlet bores and two central outlet bores. The twisting chamber is set at an angle of 2.degree. to 40.degree. to the draw-off direction of the filament. The special advantage of this apparatus according to the invention is that it ensures smooth movement of the filament outside the twisting chamber.
摘要:
A false-twisting arrangement for synthetic yarns consisting of a rotating body and yarn guides, distinguished by the fact that the yarn is pressed onto the rotating body by a jet of gas or liquid and is thereby twisted, the yarn being pressed onto the rotating body under a substantially constant force.
摘要:
A multiple cylinder internal combustion engine comprising an exhaust recycling system including an exhaust return line connected with an exhaust manifold of the internal combustion cylinder and exhaust metering device comprising a first metering member connected with a throttle valve of an intake manifold for joint actuation therewith and a plurality of turbulence nozzles, each of the turbulence nozzles being located in an immediate vicinity of an inlet valve of each combustion cylinder communicating a combustion chamber of a respective combustion cylinder with the intake manifold, the exhaust recycling system further comprising a header reservoir located downstream of said first metering member, and a plurality of separate exhaust return lines communicating the header reservoir with the plurality of turbulence nozzles, respectively.
摘要:
The invention relates to a process for the continuous uniform and penetrative dyeing with high fastnesses of slivers or filaments of acrylonitrile polymers which have been produced by a standard wet-spinning process wherein the slivers or filaments prior to dyeing are subjected to a combined washing, pressing and drying pretreatment.
摘要:
An apparatus for producing various laser wavelengths from the same laser medium by means of resonator mirrors. In accordance with the apparatus any desired, given combination of laser wavelengths can be brought to emission simultaneously or at least in very rapid alternation (switching time 1 ms) with the use of standard resonator mirrors linearly arranged outside of a laser medium, with part of at least one of the resonator mirrors being configured so that it serves as resonator limitation for a certain laser wavelength or wavelength group but another part of the at least one of the resonator mirrors constitutes an intracavity element for the respective other wavelength(s) or wavelength group(s).