Abstract: The invention relates to a process for the production of moldings composed of a polyoxymethylene polymer via blow molding, in which the polyoxymethylene polymer is extruded to give tubing, using an extruder with a grooved feed section, where the feed section is heated to a temperature in the range from 100 to 230° C., and the extruded tubing composed of the polyoxymethylene polymer is introduced into a blow mold, and a molding composed of the extruded tubing is produced in the blow mold.

Abstract: A vehicle seat has a scissor-type stand vibratable and adjustable in height, with a pneumatic spring and cranks intersecting at a scissor shaft, and a control device for level control and height adjustment of the stand. The control device has a driver, a switching element coupled with the driver, and a valve device controlled by the switching element, for controlling the pneumatic spring. The driver and the valve device are kinematically assigned to different parts of the stand, such parts being movable relative to one another. The switching element is spaced from the shaft and rotatably supported on the first crank. The valve device is connected with the first crank, and the driver is configured as a Bowden cable, the core of which is coupled with the switching element, and the jacket of which is fixedly connected with the second crank.

Abstract: A vehicle seat has a scissor-type stand vibratable and adjustable in height, with a pneumatic spring and cranks intersecting at a scissor shaft, and a control device for level control and height adjustment of the scissor type stand. The control device has a driver, a switching element coupled with the driver, and a valve device controlled by the switching element, for controlling the pneumatic spring. The driver and the valve device are kinematically assigned to different parts of the stand, such parts being movable relative to one another. The switching element is spaced from the shaft and rotatably supported on the first crank. The valve device is connected with the first crank, and the driver is configured as a Bowden cable, the core of which is coupled with the switching element, and the jacket of which is fixedly connected with the second crank.

Abstract: A method to transesterify triglycerides in the presence of a catalyst system comprising a transesterification catalyst selected from the group of the alkali metal and alkaline earth metal alkoxides and the alkali metal hydroxides, and at least one activator other than the transesterification catalyst, selected from the group comprising salt compounds, titanates and non-salt compounds having a density of at least 0.9 g/ml, is provided. Additionally provided is a method to prepare biodiesel by transesterification of a natural fat.

Abstract: The invention relates to a process for the production of moldings composed of a polyoxymethylene polymer via blow molding, in which the polyoxymethylene polymer is extruded to give tubing, using an extruder with a grooved feed section, where the feed section is heated to a temperature in the range from 100 to 230° C., and the extruded tubing composed of the polyoxymethylene polymer is introduced into a blow mold, and a molding composed of the extruded tubing is produced in the blow mold.

Abstract: A metal-encapsulated, gas-insulated high-voltage switchgear assembly includes a three-phase encapsulated busbar housing, at least one busbar disposed in the housing, and at least three single-phase-encapsulated circuit breakers disposed horizontally. The assembly further includes a busbar splitting module having at least one three-phase connecting flange configured to connect to the busbar housing and at least three single-phase connecting flanges pointing downward configured to connect to the at least three single-phase-encapsulated circuit breakers and an outgoer splitting module having at least one three-phase flange and at least three single-phase flanges pointing downward and configured to connect the at least three single-phase-encapsulated circuit breakers to a three-phase-encapsulated outgoer housing.

Abstract: A metal-encapsulated, gas-insulated high-voltage switchgear assembly includes a three-phase encapsulated busbar housing, at least one busbar disposed in the housing, and at least three single-phase-encapsulated circuit breakers disposed horizontally. The assembly further includes a busbar splitting module having at least one three-phase connecting flange configured to connect to the busbar housing and at least three single-phase connecting flanges pointing downward configured to connect to the at least three single-phase-encapsulated circuit breakers and an outgoer splitting module having at least one three-phase flange and at least three single-phase flanges pointing downward and configured to connect the at least three single-phase-encapsulated circuit breakers to a three-phase-encapsulated outgoer housing.

Abstract: The disclosure relates to a screw terminal for an electrical service device for connecting an electrical connecting conductor, which can be inserted through an insertion opening in the housing wall of the service switching device into the screw terminal. The screw terminal includes a terminal frame with a first transverse limb, which has a threaded hole for accommodating a clamping screw, and a clamping screw, which protrudes through the threaded hole into the terminal frame. The clamping frame, in its installed position in the housing of the service switching device, is guided displaceably parallel to the mid-axis of the clamping screw. The connecting conductor can be fixedly clamped in the terminal frame. That part of the terminal frame with which touching contact can be made in the installed position through the insertion opening from outside the device housing is covered by an insulating material.

Abstract: A sending node comprising a processor configured to generate an error checking message, said error checking message being generated from data, said error checking message providing order information; and a transmitter configured to transmit said error checking message and said data.

Abstract: An Oxide Precursor Powder from the Pb—Bi—Sr—Ca—Cu—O 2223 System can be produced by heat treating powder, produced using the Spray Pyrolysis Process as described in: GB2210605 or EP0681989 between 700° C. and 850° C. in an atmosphere containing between 0.1% and 21% O2. Heat Treatment of the pyrolysis powder under controlled conditions produces a powder with a particular phase composition, that is highly homogeneous and has a small particle size distribution, that is inherently more reactive than powders heat treated in the same way but produced using other processes.

Abstract: Mixtures of catenate and cyclic siloxane oligomers of formula I and II ##STR1## wherein the substituents R consist of 3-methacryloxypropyl or 3-acryloxypropyl groups and methoxy, ethoxy and/or propoxy groups alone or together with C.sub.1 -C.sub.18 alkyl, fluoroalkyl, isoalkyl or cycloalkyl groups and/or C.sub.6 -C.sub.12 aryl groups and where not more than one 3-methacryloxypropyl or 3-acryloxypropyl group is attached to one silicon atom and the degree of oligomerization of compounds of the formula I is within the range 2<m<25 and of compounds of the formula II is within the range 2<n<8 and the quotient of the molar proportion of Si/alkoxy groups is .gtoreq.0.5.

Abstract: A method for displaying machine malfunctions, particularly for polygraphic machines such as large printing presses, provides concrete instructions for quickly finding and eliminating these machine malfunctions without it being necessary to consult a machine handbook. With the occurrence of a malfunction, an actual image or a series of actual images of the machine is/are displayed on a monitor of a machine control console for effective guidance to the source of the malfunction. Instructions for eliminating the respective malfunction are also displayed.

Abstract: A memory aboard a boom-type crane stores the coefficients of several polynomials of at least the fifth order closely approximating respective curves giving the maximum permissible load for different boom lengths as a function of the elevational angle of the boom (or the horizontal projection of its length). The set of coefficients read out under the control of a boom-length sensor is fed to a processor which calculates, for a given angle (or projection) as measured by another sensor, the numerical value of the maximum load corresponding to the selected polynomial. The actual value of the load, e.g. as detected by the hydraulic pressure of a jack engaging the boom at an intermediate point, is compared with the permissible maximum calculated by the processor; if that maximum is exceeded, an alarm is given.

Abstract: The operation of a boom-type crane or the like is monitored or controlled and, especially, a setpoint signal is generated which represents the total load moment for any given set of crane-operating parameters so that this setpoint signal can be compared with an actual-value signal and the crane operator alerted or crane operation terminated when the actual value of the boom-load moment approaches the maximum permissible value thereof. According to the invention, three storage units are provided, the first storing a value of the crane-boom intrinsic moment as a function of the crane parameters, the second storing a unit-load moment value as a function of the crane parameters and the third storing values of the maximum permissible load moment per unit load.