Abstract:
A door closer including a free-swing function, including a door closer housing, an output shaft connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a free-swing assembly adapted to enable a translational motion of the piston assembly decoupled from the closer spring when the closer spring is locked, and a hydraulic lock compartment adapted to lock the closer spring. The output shaft is a cam-shaped rolling contour, in particular a cam disc, and the piston assembly includes at least one cam roller abutting on the rolling contour.
Abstract:
An ophthalmological measuring system, for obtaining biometric data of an eye, provided with the necessary calibration and check devices for monitoring the functionality and the calibration status. The ophthalmological measuring system includes an illumination source for illuminating an eye with light and with a sensor for recording and analyzing back-scattered or reflected light components and a controller. At least one calibration and check system integrated in the ophthalmological measuring system for monitoring the functional and calibration status is provided. A device is also provided which houses the calibration and test structures and which reads off the individual physical data therefrom by an interface. The ophthalmological measuring system is in particular provided for determining biometrical data but can also be used for ophthalmological, dermatological or other devices which require calibration and/or functional checking at regular intervals.
Abstract:
An ophthalmological biometric or image-producing system and method for detection and analysis of measurement data including a measurement arrangement with an illumination unit for illuminating the eye with at least one measurement beam, a signal detection unit for the detection of the light portions scattered or reflected back from the eye, a central control unit with an output unit, and a pattern generating unit which includes an optical scan unit, a control unit as well as a position sensor for measuring the realized deflections of the optical scan unit, whereby control unit, optical scan unit and position sensor can form a control circuit. Thereby, the position sensor, except for the connection within the possible control circuit, includes a connection to a unit of the measurement arrangement for optimizing measurement value logging or to the central control unit for correcting the biometric measurements or tomograms.
Abstract:
The invention relates to a plug-in connector for connecting two flat strip conductors, including at least one spring element which provides the required normal contact power for the connection of the two flat strip conductors. The spring element contacts the two flat strip connectors and produces the electric contact between the two flat strip connectors.
Abstract:
A door closer, in particular a hinge door closer, including a locking function or free-swing function, having a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a hydraulic lock compartment adapted to lock the closer spring, and in particular a free-swing assembly which is adapted to enable a translational motion of the piston assembly decoupled from the closer spring when the closer spring is locked.
Abstract:
An oil filter assembly has a bypass valve and a cover formed with an orifice. In order to provide a simple contamination indicator for the oil filter, there is provided a deflection device that deflects an oil jet emerging through the orifice when the bypass valve is open on the outside of the cover. The oil jet can thus be deflected into a region observable through a filling orifice. A contaminated oil filter can therefore be reliably detected on occasion of a quick visual check, by observing the deflected oil jet.
Abstract:
The present invention is concerned with a novel process for the manufacture of α-tocopheryl acetate which comprises reacting 2,3,6-trimethylhydroquinone-1-acetate with a compound selected from the group consisting of phytol (formula IV with R═OH), iso-phytol (formula III with R═OH), and (iso) phytol derivatives represented by the following formulae III and IV with R═C2-to C5-alkonoyloxy, benzoyloxy, mesyloxy, bezenesul-fonyloxy or tosyloxy, (IV) in the presence of a catalyst of the formula Mn+(R1SO3−)n, wherein Mn+ is a silver, copper, gallium, hafnium or rare earth metal cation, n is the valence of the cation Mn+, and R1 is fluorine, C1-8-perfluoroalkyl or perfluoroaryl, and, if required, cyclizing any 3-phytyl-2,5,6-trimethylhydroquinone-1-acetate or a double bond isomer thereof obtained as an intermediate reaction product, to produce α-tocopheryl acetate. In the catalyst Mn+ is preferably Ag+, Cu+, Ga3+, Sc3+, Lu3+, Ho3+, Tm3+, Yb3+ or Hf4+.
Abstract translation:本发明涉及制备乙酸α-生育酚酯的新方法,其包括使2,3,6-三甲基氢醌-1-乙酸酯与选自植醇(式IV与R-OH)的化合物反应, 异山嵛醇(具有R-OH的式III)和由下式III和IV表示的(iso)植醇醇衍生物,其具有至少2个至5个C 5 - 烷酰氧基, 苯甲酰氧基,甲磺酰氧基,枯烯二烯基氧基或甲苯磺酰氧基,(Ⅳ)在式M n n n a a a>>>>>>>>>>>>>>>>>>>>>>>>>> 其中M + N +是银,铜,镓,铪或稀土金属阳离子,n是阳离子的化合价 M + N +,R 1是氟,C 1-8 - 全氟烷基或全氟芳基,如果需要,可以将任何3-植酰基 - 获得的作为中间体反应产物的2,5,6-三甲基氢醌-1-乙酸酯或其双键异构体,以产生乙酸α-生育酚酯。 在催化剂中,N + +优选为Ag +,Cu +,Ga 3+,Sc 3 或+ 3+,3+,3 +,3 +,3 +,3 + Hf 4+。
Abstract:
The present invention is concerned with a novel process for the manufacture of α-tocopheryl acetate which comprises reacting 2,3,6-trimethylhydroquinone-1-acetate with a compound selected from the group consisting of phytol (formula IV with R═OH), iso-phytol (formula III with R═OH), and (iso) phytol derivatives represented by the following formulae III and IV with R═C2-to C5-alkonoyloxy, benzoyloxy, mesyloxy, bezenesul-fonyloxy or tosyloxy, (IV) in the presence of a catalyst of the formula Mn+(R1SO3−)n, wherein Mn+ is a silver, copper, gallium, hafnium or rare earth metal cation, n is the valence of the cation Mn+, and R1 is fluorine, C1-8-perfluoroalkyl or perfluoroaryl, and, if required, cyclizing any 3-phytyl-2,5,6-trimethylhydroquinone-1-acetate or a double bond isomer thereof obtained as an intermediate reaction product, to produce α-tocopheryl acetate. In the catalyst Mn+ is preferably Ag+, Cu+, Ga3+, Sc3+, Lu3+, Ho3+, Tm3+, Yb3+ or Hf4+.
Abstract:
A door closer, in particular a hinge door closer, including a locking function or free-swing function, having a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a hydraulic lock compartment adapted to lock the closer spring, and a spring-loaded check valve arranged between the lock compartment and a space becoming smaller during the opening process of the door, in particular an accommodating space for the closer spring. The spring-loaded check valve locks toward the space becoming smaller.
Abstract:
A device for swept-source optical coherence domain reflectometry (SS OCDR) on moveable samples, particularly human eyes, for obtaining A-scans, having a measuring range according to the sample length and having a laser light source which can be adjusted by a main wave number k0 and at least one receiver for the light dissipated from the sample, wherein the sample is illuminated on the sample surface by a measurement beam having a diameter D by way of a coupling device. The light source has a spectral line width of δk