Abstract: A sintered gearwheel is described having teeth (1) which, in the flank and root region (2, 3), comprise a compacted surface layer (7, 8, 9) which is continuous in the transition portion (4) between the flank and root region (2, 3) and has a residual porosity of less than 10%. In order to increase the load-bearing capacity it is proposed that the compacted surface layer (9) is formed with a lower thickness in the transitional portion (4) between the flank and root region (2, 3) than in the adjacent flank and root regions (2, 3).

Abstract: Reactive dyes of formula wherein R1 is hydrogen or unsubstituted or substituted C1-C4alkyl, (R2)s denotes s identical or different substituents from the group halogen, nitro, unsubstituted or halo-substituted C1-C4alkyl, C2-C4alkanoylamino, C1-C4alkylsulfonyl, carbamoyl, sulfamoyl and sulfo, Me is chromium, cobalt or iron, E is a bivalent radical of formula wherein X denotes chlorine or fluorine, T is a fiber-reactive radical of formula —NH—(CH2)2-3—SO2—Z??(2a), —NH—(CH2)2-3—O—(CH2)2-3—SO2—Z??(2b), (R3)0-2 denotes from 0 to 2 identical or different substituents from the group halogen, C1-C4alkyl, C1-C4alkoxy and sulfo, Z is vinyl or a —CH2—CH2—U radical and U is a group that is removable under alkaline conditions, Q is a —CH(Hal)-CH2-Hal or —C(Hal)=CH2 group, s is the number 0, 1, 2 or 3, q is the number 0 or 1, A denotes a bivalent radical of formula wherein R1, R2, X, T, m, n, q and s are as defined above, R4 and R7 denote hydrogen or C1-C4alkyl, R5 and R6 represent, each independent

Abstract: A plant (100) for the layered construction of a molded body comprises a coating device (400) and a coating device cleaner (600). The coating device is movable horizontally across a construction field for applying a uniform layer of construction material to be solidified to the construction field and has an elongate metering shaft (410), at the lower side of which a longitudinal slot (412) is provided for outputting the construction material as the metering shaft (410) moves across the construction field. The coating device cleaner (600) is mounted on a construction frame (150) of the plant and serves for cleaning the metering shaft (410). The coating device cleaner (600) comprises an elongate wiper element (610) that is received under the metering shaft (410) of the coating device (400) at least in part in a construction material collection container (620).

Abstract: The invention relates to a construction box (200) comprising a front wall (220), a rear wall and two side wails (224, 226), which delimit a construction box interior that houses a height-adjustable construction platform (210). The construction box (200) has dedicated travelling gear (250) integrated in to the construction box for propelling said box (2000 between a construction position, in which the construction box (2000 is positioned within the frame (150) of the system (100) to allow the shaped body to be built up and an additional construction box position, such as a construction box unpacking position, in which the construction box (200) is propelled out of the frame (150) of the system (100) to permit the unpacking of the built-up shaped body.

Abstract: An apparatus for ascertaining and/or monitoring of a process variable of a medium. The apparatus includes: A mechanically oscillatable unit; an exciting/receiving unit, which excites the mechanically oscillatable unit to execute mechanical oscillations and which receives the mechanical oscillations; and an electronics unit, which supplies the exciting/receiving unit with an electrical, output signal, and which receives from the exciting/receiving unit an electrical, input signal. In the electronics unit there is provided an amplifier unit, which amplifies the electrical, input signal to an amplified signal (SA). An adjustable phase shifter is provided, which changes the phase of the amplified signal, and a control unit is also provided, which controls the phase shifter, wherein the control unit measures the frequency of the amplified signal and controls the phase shifter starting from stored data concerning the frequency-phase dependence of the amplifier unit.

Abstract: An apparatus including: a mechanically oscillatable unit; an exciting/receiving unit; and an electronics unit having an input amplifier and an output amplifier. The amplification factors of the output amplifier and the input amplifier are tunable. The control unit tunes the amplification factor of the output amplifier as a function of damping of the mechanically oscillatable unit in such a manner that the amplitude of the electrical, input signal lies within an amplitude band and that the amplification factor of the output amplifier decreases in the case of lessened damping by the medium and increases in the case of greater damping by the medium, and the control unit tunes the amplification factor of the output amplifier and the amplification factor of the input amplifier in such a manner that the total amplification factor of the electronics unit equals a predeterminable value.

Abstract: A joining unit contains a spindle drive in the form of a hollow shaft motor that encloses a spindle. The hollow shaft motor serves to achieve a linear movement of a joining tool for the execution of a joining process. The joining unit contains instruments for the presetting and/or determination of the forces exerted and/or the movement of the joining tool during the joining process.

Abstract: An apparatus for determining and/or monitoring at least one process variable of a medium. The apparatus includes: at least one mechanically oscillatable unit; a driving/receiving unit, which, starting with an electric, excitation signal, excites the mechanically oscillatable unit to execute mechanical oscillations, and which receives the mechanical oscillations of the mechanically oscillatable unit and converts them into an electric, received signal; and an electronics unit, which, starting with the electric, received signal, generates the electric, excitation signal and sends it to the driving/receiving unit. The electronics unit is embodied in such a way that it generates the excitation signal, such that a predeterminable phase difference exists between the excitation signal and the received signal. Present in the electronics unit is at least one all-pass filter for tuning the phase difference.

Abstract: An apparatus for ascertaining and/or monitoring a process variable, especially density of a medium. The apparatus includes: an exciting/receiving unit, which excites a mechanically oscillatable unit to execute mechanical oscillations and which receives the mechanical oscillations; an electronics unit, which applies to the exciting/receiving unit an electrical, exciter signal, and which obtains from the exciting/receiving unit an electrical, received signal. The electronics unit produces the exciter signal in such a manner, that, between the received signal and the exciter signal, a phase difference equal to a desired value of phase difference results, at which effects of changes of viscosity on mechanical oscillations of the mechanically oscillatable unit are negligible, and that the desired value of phase difference is predetermined as a function of the ratio of impedance of the exciting/receiving unit to the input impedance of the electronics unit.

Abstract: A temperature T of a metal melt in a furnace is precisely determined without contact using at least one burner gun unit fed through a furnace wall of the furnace above the metal melt into a furnace chamber and at least one temperature measuring unit downstream of the burner gun unit.

Abstract: The invention relates to a method for producing a stator winding (18) of an electric machine (10), in particular of an alternator, the stator winding (18) comprising at least n phase windings (120, 121, 122, 123, 124) and a phase winding (120, 121, 122, 123, 124) having several directly consecutively wound coils (82) having coil sides (88) and coil side connectors (91), the coils (82) being divided into first coils (82.1) and second coils (82.2), by means of a forming tool (100), in which grooves (105, 106; 105?, 106?) suitable for accommodating the coils (82) are provided, a first coil (82.1) being arranged in one groove (105; 105?) and a second coil (82.2) being arranged in another groove (105; 105?), characterized in that n?1 grooves (105, 106; 105?, 106?) are arranged between the first coil (82.1) and the second coil (82.2).