Abstract: A composition including a photoinitiator and an azo compound are cured with the formation of bubbles. The method can also be carried out in a multi-stage method involving irradiation and heating.

Abstract: A device for forming a sheet-metal blank, the device including: a press frame; a tool top part including an outer die and an inner die; a tool base part including a punch and a sheet-metal holder; at least one drive assigned to the tool top part and/or the tool base part; and an annular sheet-metal holder surrounding the punch and having a support face; wherein one drive is in each case assigned to the inner die on the one hand, and to the outer die and the sheet metal holder on the other hand, and the one drive displaces the inner die and the outer die at different speeds in the drawing direction. A method of forming a sheet-metal blank including: using the device during a starting period, an intermediate phase, and a final phase where the movement and/or direction of the two dies vary.

Abstract: An endoscope including a handle housing having apertures for legs of an operating part, an electrical switch positioned in the handle housing and having a carrier board having apertures for the legs. The operating part includes a finger pad having a finger surface, a ring connected to and extending from the finger pad, the ring having a plunger aperture, legs connected to and extending from the ring, the legs each having a spacer section and an electrical switch retention protrusion. The legs traverse the apertures of the handle housing and the carrier board to secure the electrical switch to the housing handle. The finger pad comprises elastically deformable material configured to extend toward and cause actuation of the electrical switch, when pressure is applied and to return to a rest position when pressure is released.

Abstract: A computer-implemented method for simulating and optimising a process of forming and assembling parts comprises simulating a forming process (2) by a forming simulation (20), thereby generating a sprung back part simulation model (30) corresponding to a reference geometry (10) of the at least one formed part (3); simulating an assembly process (4) by an assembly simulation (40), based on the sprung back part simulation model (30) of the at least one formed part (3), and generating an assembled sprung back part simulated model (50). Therein, if the geometry of the assembled sprung back part simulated model (50) does not match the reference geometry (10), a compensated sprung back part geometry (60) is iteratively adapted, and the assembly simulation (40) based on this is repeated until the assembled sprung back part simulated model (50) matches the reference geometry (10), resulting in an optimised compensated sprung back part geometry (60).

Abstract: A device for forming a sheet-metal blank, the device comprising: a press frame; a tool top part including an outer die and an inner die; a tool base part including a punch and a sheet-metal holder; at least one drive assigned to the tool top part and/or the tool base part; and an annular sheet-metal holder surrounding the punch and having a support face; wherein one drive is in each case assigned to the inner die on the one hand, and to the outer die and the sheet metal holder on the other hand, and the one drive displaces the inner die and the outer die at different speeds in the drawing direction. A method of forming a sheet-metal blank comprises using the device during a starting period, an intermediate phase, and a final phase where the movement and/or direction of the two dies vary.

Abstract: The invention relates to an apparatus, an installation and a method for machining a workpiece made of metal, such as steel, by a machining processes such as forming, pressing, drawing, compressing and cutting. The invention includes at least two tools and a drive associated with the tools for their movement and for carrying out the machining process. The drives are arranged in such a way that when travelling on trajectories the tools have different speeds over at least a part of their trajectories.

Abstract: The invention relates to an apparatus, an installation and a method for machining a workpiece made of metal, such as steel, by a machining processes such as forming, pressing, drawing, compressing and cutting. The invention includes at least two tools and a drive associated with the tools for their movement and for carrying out the machining process. The drives are arranged in such a way that when travelling on trajectories the tools have different speeds over at least a part of their trajectories.

Abstract: A transmission having at least one shaft, on which a guide sleeve which has a first external toothing system is arranged fixedly so as to rotate with it and at least one slider sleeve which has an internal toothing system is arranged, it being possible to adjust the slider sleeve between a disengaged position, in which the internal toothing system and a second external toothing system on a clutch element are not operatively connected, and an engaged position, in which the internal toothing system meshes with the second external toothing system. The internal toothing system and/or the first external toothing system are/is configured in such a way that there is merely punctiform contact between them in the engaged position. As a result, in particular, an undesired gear disengagement can be suppressed.

Abstract: A method for oiling the axial stops (10) on components (6, 17, 18) fixed on a shaft (1), provided for loose wheels (2, 3) arranged on the shaft. According to the method, oiling of the axial stops (10) occurs by supplying oil through an axially extending bore or oil duct (5) of the shaft (1) and through grooves (11, 12) formed on the axial stop (10) with the grooves being in fluid flow connection with the oil duct (5).

Abstract: Use of benzotriazole derivatives of formula (1), wherein R1 is C1-C30alkyl; C1C5alkoxy; C1-C5alkoxycarbonyl; C5-C7cycloalkyl; C6-C10aryl; aralkyl; —SO3M; a radical of formula (1a) R3 is hydrogen; C1C5alkyl; C1C5alkoxy; halogen, preferably Cl; or hydroxy; R4 and R5 are each independently of the other hydrogen; or d-C5alkyl; m is 1 or 2; n is O or 1; if m=1, R2 is hydrogen; unsubstituted or phenyl-substituted d-C1-C12alkyl; or C6-C10aryl; if m=2, R2 is the direct bond; or —(CH2)p—; and p is 1 to 3; for enhancing the photostability of cosmetic or dermatologic compositions comprising at least one further organic UV absorber.

Abstract: A transmission having at least one shaft, on which a guide sleeve which has a first external toothing system is arranged fixedly so as to rotate with it and at least one slider sleeve which has an internal toothing system is arranged, it being possible to adjust the slider sleeve between a disengaged position, in which the internal toothing system and a second external toothing system on a clutch element are not operatively connected, and an engaged position, in which the internal toothing system meshes with the second external toothing system. The internal toothing system and/or the first external toothing system are/is configured in such a way that there is merely punctiform contact between them in the engaged position. As a result, in particular, an undesired gear disengagement can be suppressed.

Abstract: A method for oiling the axial stops (10) on components (6, 17, 18) fixed on a shaft (1), provided for loose wheels (2, 3) arranged on the shaft. According to the method, oiling of the axial stops (10) occurs by supplying oil through an axially extending bore or oil duct (5) of the shaft (1) and through grooves (11, 12) formed on the axial stop (10) with the grooves being in fluid flow connection with the oil duct (5).

Abstract: Use of benzotriazole derivatives of formula (1), wherein R1 is C1-C30alkyl; C1C5alkoxy; C1-C5alkoxycarbonyl; C5-C7cycloalkyl; C6-C10aryl; aralkyl; —SO3M; a radical of formula (1a) R3 is hydrogen; C1C5alkyl; C1C5alkoxy; halogen, preferably Cl; or hydroxy; R4 and R5 are each independently of the other hydrogen; or d-C5alkyl; m is 1 or 2; n is O or 1; if m=1, R2 is hydrogen; unsubstituted or phenyl-substituted d-C1-C12alkyl; or C6-C10aryl; if m=2, R2 is the direct bond; or —(CH2)p—; and p is 1 to 3; for enhancing the photostability of cosmetic or dermatologic compositions comprising at least one further organic UV absorber.

Abstract: A switching mechanism of a multiple change-over gear with an axially displaceable and pivoted gearshift lever shaft having a shift finger formed on the gearshift lever shaft with switching wings which are operatively connected with a synchronization and coupling device for wheels supported on a wheel set shaft of the gearing unit, and with cams formed on the switching wings with which the shift finger can mesh for the execution of a process of gear ratio modification and, over the cams, can axially displace the switching wings.

Abstract: A switching mechanism of a multiple change-over gear with an axially displaceable and pivoted gearshift lever shaft having a shift finger formed on the gearshift lever shaft with switching wings which are operatively connected with a synchronization and coupling device for wheels supported on a wheel set shaft of the gearing unit, and with cams formed on the switching wings with which the shift finger can mesh for the execution of a process of gear ratio modification and, over the cams, can axially displace the switching wings.

Abstract: In a method for detecting an offset drift in a resistive Wheatstone measuring bridge, a switch is made between a measuring mode and a testing mode without interfering in the internal structure of the measuring bridge. In testing mode, two sensor resistors that act in the same way and lie in different bridge arms in the measuring mode are connected in series, and a voltage level occurring in the connection of these sensor resistors is compared with a reference voltage. Preferably the sensor resistor that acts in a different way and lies between the two series-connected sensor resistors acting in the same way is bridged. The reference voltage is advantageously formed by resistive division of the voltage applied to the series connection of the sensor resistors. The testing mode may expediently be switched in such a way that the two pairs of sensor resistors acting in the same way are respectively tested in succession.

Abstract: A process for producing propylene from methanol, wherein methanol vapor is reacted on a first catalyst to obtain a first vapor mixture containing dimethyl ether (DME), which is reacted on a form-selective zeolite catalyst disposed as bed in at least two series-connected shaft reactors to produce a product mixture containing propylene.

Abstract: The invention relates to a plasma spraying apparatus (1) including a plasma torch (2) for heating up a spray powder (3) in a heating zone (4) and a metering unit (5) for metering the spray powder (3), said metering unit (5) for conveying the spray powder (3) into an injection unit (6) by means of a conveyor gas (7) under a pre-determined pressure being connected with a conveyor gas unit (9) via a conveyor gas line (8). The injection unit (6) has an inlet (61) and an outlet (62) designed as a powder injector (62) so that the spray powder (3) can be supplied from the metering unit (5) to the injector unit (6) through the inlet (61) by means of the conveyor gas (7) via an injector line (10) to the injector unit (6).

Abstract: This invention relates to a process of producing C2- to C4-olefins from steam and a feed mixture containing C4- to C8-olefins, wherein the feed mixture containing steam is introduced into a reactor with an inlet temperature of 300 to 700° C., said reactor comprising a bed of granular, form-selective zeolite catalyst, and wherein a product mixture containing steam and C2- to C4-olefins is withdrawn from the bed and is passed through at least one cooling means.

Abstract: In a method for detecting an offset drift in a resistive Wheatstone measuring bridge, a switch is made between a measuring mode and a testing mode without intervening in the internal structure of the measuring bridge. To this end, in testing mode two sensor resistors which act in the same way and lie in different bridge arms in the measuring mode, are connected in series and a voltage level occurring in the connection of these sensor resistors is compared with a reference voltage. Preferably the sensor resistor which acts in a different way and lies between the two series-connected sensor resistors acting in the same way is bridged. The reference voltage is advantageously formed by resistive division of the voltage applied to the series connection of the sensor resistors. The testing mode may expediently be switched in such a way that the two pairs of sensor resistors respectively acting in the same way are tested in succession.