摘要:
A reserve-surface cleaning apparatus is used in combination with a ring-spinning machine having a longitudinally extending row of spindles each adapted to hold a roving sleeve and each formed below the respective sleeve with a respective reserve winding area and a longitudinally extending frame extending along a back side of the row and a service area extending along a front side of the row. The cleaning system has a guide rail extending on the frame longitudinally along the back side of the row of spindles, a cleaner carriage displaceable longitudinally along the rail past the spindles, and a drive for displacing the cleaner carriage longitudinally along the rail past the spindles. A set of tools on the cleaner carriage strips roving from the reserve surfaces as the cleaner carriage passes same. A vacuum carriage displaceable longitudinally along the frame has an attachment with an end projecting from the front side back toward the stations level with the reserve surfaces for aspirating roving stripped therefrom by the tools and a drive engaged between the vacuum carriage and the frame displaces the vacuum carriage longitudinally along the frame and thereby sequentially positions the attachment immediately adjacent the surfaces. A synchronizing unit connected between both of the drives synchronously jointly moves the carriages and maintains the attachment transversely aligned with the tools.
摘要:
A fluid compression system is disclosed. The fluid compression system may include a first compressor disposed in a first fluid conduit, a first valve disposed in the first fluid conduit upstream of the first compressor, a second valve disposed in the first fluid conduit downstream of the first compressor, a second compressor in fluid communication with the first compressor and configured to selectively pump fluid from the first compressor.
摘要:
A device for machining workpieces of wood or plastic has at least one spindle having a spindle axis and being moveable transverse to the spindle axis relative to a reference plane. A machining tool having cutting edges is provided. The machining tool is seated on the spindle. At least one measuring device is provided for correctly positioning the cutting edges relative to the reference plane. Correct positioning is achieved by moving the spindle in a direction transverse to the spindle axis and detecting by the measuring device a preset position of the cutting edges of the machining tool relative to the reference plane and generating a switch-off signal when the cutting edges of the matching tool are in the preset position.
摘要:
The cable is introduced into a sealing tube containing elastic sealing elements before entering the vulcanization chamber which is separated from the extruder. The elements have closed chambers which can be individually pressurized by, in each case, one line, while pressure regulation takes place by means of pressure reducing valves. Gaps can be provided between the individual chambers and they are filled by the heat transfer medium which brings about the crosslinking of the layer extruded onto cable and which passes out of the intake opening of vulcanization chamber. A leakage flow forms along the entire sealing tube and this passes through the openings of sealing elements and completely fills the annular clearance between the boundary of the opening and the cable, so that any contact between the cable and the sealing elements is at least substantially prevented. The gaps can be filled with a sealing liquid, which then forms the leakage flow instead of or together with the heat transfer medium.
摘要:
The invention relates to biaxially oriented polyester films which contain 0.1-5.0% by weight (based on the weight of the film) of a hydrolysis stabilizer based on epoxidized fatty acid esters and 0.2-10% by weight (based on the weight of the film) of epoxidized fatty acid glycerides, the epoxidized fatty acid esters having a mean molecular weight of at least 425 g/mol. Such films find use in outdoor applications, as a ribbon cable, as a backside laminate of solar modules and in electrical insulation applications.
摘要:
A gas turbine engine system includes a gas turbine engine using vaporized liquefied gas as fuel. The gas turbine engine is configured to ingest intake air from an intake port and direct exhaust gases to an exhaust port. The gas turbine engine system also includes a heat exchanger with a heat transfer fluid therein. The heat exchanger is configured to create at least a part of the fuel by heating the liquefied gas. The gas turbine engine system also includes an intake air temperature control circuit. The intake air temperature control circuit includes conduits configured to direct the heat transfer fluid to the intake port and the exhaust port. The gas turbine engine system also includes a control system configured to selectively direct the heat transfer fluid to one of the intake port and the exhaust port.
摘要:
The invention describes a novel polyester raw material and the production and use of an oriented, single- or multilayer film having an overall thickness of .ltoreq.4 .mu.m and a roughness on at least one film surface of R.sub.a
摘要:
A position-sensitive detector for electronically imaging objects emitting low-intensity light radiation, comprises a photocathode means for converting incident low-intensity light radiation into electrons; electron acceleration means disposed in series with the photocathode means for accelerating the electrons generated by the photocathode means; transducer means disposed in series with the acceleration means for converting the accelerated electrons into ultra-violet radiation; and a multi-wire chamber means disposed in series with the transducer means for providing readout of the position of the ultra-violet radiation.A detector having a solid scintillator for electronically imaging objects emitting low-intensity x-ray or gamma ray or the like is also disclosed.
摘要:
A control circuit for a continuous conversion of information carrying anaous voltage and current signals into digital magnitudes containing said information, the respective digital magnitude is so coded that always one digital magnitude differs from the next higher digital magnitude merely by a one-digit digital information value. The circuit of the invention is characterized primarily in that for a simultaneous reception of the signals there are provided one or more serially arranged analogous digital converters as well as control stages comprising one or more groups, while the groups for folding the signals are formed by differential converters which emit the folded signals at the exit of the respective group and while an analogous digital converter follows the control stage or stages. The analogous digital converter forms informational values of the digital magnitudes by a subdivision of the signals.
摘要:
Provided are reactive compositions for making a polyurethane-based rain-erosion protective coating for rotor blades, the reactive composition comprising an isocyanate-reactive component and an isocyanate-functional component and wherein the isocyanate-reactive component comprises a first component i) being a short chain hydroxyl-functional compound having two terminal (α-ω) hydroxyl groups, a molecular weight of less than 250 g/mole and containing at least 2 carbon atoms and a second component ii) comprising a high molecular weight hydroxyl-functional compound having two terminal (α-ω) hydroxyl groups and a molecular weight of at least 250 g/mol and comprising one or more units selected from oxyalkylene units and polyoxyalkylene units and wherein the isocyanate-functional component is an isocyanate prepolymer of the general formula NCO—Z—NCO, wherein Z is a linking group comprising at least two urethane (—NH—CO—O—) units and additionally one or more units selected from alkylenes, oxyalkylenes, polyoxyalkylenes, alkylene esters, oxyalkylene esters, polyoxyalkylene esters and combinations thereof. Also provided are protective coatings obtained from the reactive compositions and methods of applying the coatings to articles.