Abstract: A method for continuous production of a thermally insulating mixture comprising silica particles and opacifier particles, in which a premixed stream comprising a carrier gas, silica particles and opacifier particles is introduced into a fine impact mill, ground and mixed therein, after which the solid is separated from the gas stream, wherein the fine impact mill is an air-stream mill comprising grinding tracks arranged one above the other on a rotatable shaft.

Abstract: A refractory article having a support structure including a first plurality of posts coupled by a first member; and a second plurality of posts substantially parallel with the first plurality of posts, the second plurality of posts coupled by a second member, wherein the support structure has a height, H, and wherein the first and second members are positioned between 0.3H and 0.7H. In another aspect, the support structure has a height to width ratio of at least 1.5, a stiffness factor of no greater than 100 mm, and a solid to open volume ratio of no greater than 5%. In another aspect, the support structure has a weight of no greater than 1200 kg, a stiffness factor of no greater than 100 mm, and a solid to open volume ratio of no greater than 5%.

Abstract: The present invention is directed to a steering apparatus for a vehicle having a including a light element providing indication and warning light signals to the user of the vehicle. The light element can be associated with a PCB mounted to the steering wheel grip for controlling the operation of the light element. The PCB may be thermally coupled to a heat exchange component such that heat from the light element is transferred from the PCB to the steering wheel grip.

Abstract: The present invention is directed to a steering apparatus for a vehicle having a including a light element providing indication and warning light signals to the user of the vehicle. The light element can be associated with a PCB mounted to the steering wheel grip for controlling the operation of the light element.

Abstract: The present invention is directed to a steering apparatus for a vehicle having a including a light element providing indication and warning light signals to the user of the vehicle. The light element can be associated with a PCB mounted to the steering wheel grip for controlling the operation of the light element. The PCB may be thermally coupled to a heat exchange component such that heat from the light element is transferred from the PCB to the steering wheel grip.

Abstract: In a method for the hydrodynamic support and centering of a rotating workpiece during grinding and a steady rest usable for this purpose the bearing to be supported is impinged upon by a contact pressure which changes in accordance with rotational speed from a minimum pressure when the shaft is started from a standstill, to a maximum value during the processing rotational speed. The steady rest has an opening of a transversebore in a central bore receiving a supply line by which a lubricant can be supplied as hydraulic fluid to the bearing. The method is particularly suitable for the processing of camshafts and crankshafts.

Abstract: On a workpiece there are first longitudinal portions which are rotationally symmetrical with respect to the continuous longitudinal axis and are intended to be ground by way of centerless grinding. The workpiece also has a second longitudinal portion, which is not rotationally symmetrical with respect to the longitudinal axis and would lead to imbalance in the event of rotation. Therefore, a balancing weight having a radially extending recess is placed on the second longitudinal portion. The balancing weight contributes largely to uniform distribution of the rotating masses, thus reduces the imbalance to a very low residual imbalance and allows reliable and precise centerless grinding.

Abstract: In an indexable insert having wide sides, inclined narrow sides are to be ground, that is to say the grinding allowance 38 is to be removed. To this end, the indexable insert is set in rotation about a driven axis of rotation between a clamping insert and a thrust bolt. Serving for the grinding is a grinding wheel which rotates about rotation axis and which has a circumferential surface 18a contoured in a circular shape and having a largest diameter and is composed of a leading region and a trailing region. The grinding wheel is guided relative to the indexable insert along the geometrical defining line which is formed by the generating line of the finished narrow side in the feed direction. The leading region tapering forwards effects preliminary grinding of the narrow side by longitudinal grinding, whereas the trailing region effects finish grinding by linear contact with the narrow side. The grinding wheel is held with the clamping flanges on a grinding spindle.

Abstract: Method for controlling the functioning of two heat engines connected to a torque distributor (5) in a fire-fighting vehicle, each engine being provided with automatic transmission and with a first clutch (K1) connecting the first (A) of said engines to a delivery pump of a liquid; with a second clutch (K2) connecting the first engine (A) to the vehicle's traction; with a third clutch (K3) connecting the second engine (B) to the vehicle's traction. The control has an activation or a deactivation step of said delivery pump, by closing or opening said first clutch (K1) at a vehicle speed lower than a threshold higher than zero, and in a condition of decelerating vehicle, with the simultaneous opening or closing of said second clutch (K2), and if said conditions are verified within an interval of time from an activation or deactivation request.

Abstract: In order to grind bar-shaped workpieces which have a non-circular cross-section and flat faces which are parallel to each other, two partial operations are performed consecutively. First, the bar-shaped workpiece is rough ground and finished on the faces by way of double-disk face grinding. The bar-shaped workpiece is clamped on the longitudinal sides in the first clamping position thereof, and the bar-shaped workpiece is transported between two clamping jaws, which clamp the workpiece in the second clamping position thereof on the faces. The first clamping position is then released, and the bar-shaped workpiece is rotated by the clamping jaws. A CNC-controlled peripheral grinding step is performed based on CX interpolation principles. This rough grinds and finishes the longitudinal sides of the bar-shaped workpiece. Transport from the first to the second clamping position is effected by a clamping station, which concomitantly forms the holder for the face grinding operation.

Abstract: Method for controlling the functioning of two heat engines connected to a torque distributor (5) in a fire-fighting vehicle, each engine being provided with automatic transmission and with a first clutch (K1) connecting the first (A) of said engines to a delivery pump of a liquid; with a second clutch (K2) connecting the first engine (A) to the vehicle's traction; with a third clutch (K3) connecting the second engine (B) to the vehicle's traction. The control has an activation or a deactivation step of said delivery pump, by closing or opening said first clutch (K1) at a vehicle speed lower than a threshold higher than zero, and in a condition of decelerating vehicle, with the simultaneous opening or closing of said second clutch (K2), and if said conditions are verified within an interval of time from an activation or deactivation request.

Abstract: In a method for the hydrodynamic support and centering of a rotating workpiece during grinding and a steady rest usable for this purpose the bearing to be supported is impinged upon by a contact pressure which changes in accordance with rotational speed from a minimum pressure when the shaft is started from a standstill, to a maximum value during the processing rotational speed. The steady rest has an opening of a transversebore in a central bore receiving a supply line by which a lubricant can be supplied as hydraulic fluid to the bearing. The method is particularly suitable for the processing of camshafts and crankshafts.

Abstract: In order to grind bar-shaped workpieces which have a non-circular cross-section and flat faces which are parallel to each other, two partial operations are performed consecutively. First, the bar-shaped workpiece is rough ground and finished on the faces by way of double-disk face grinding. The bar-shaped workpiece is clamped on the longitudinal sides in the first clamping position thereof, and the bar-shaped workpiece is transported between two clamping jaws, which clamp the workpiece in the second clamping position thereof on the faces. The first clamping position is then released, and the bar-shaped workpiece is rotated by the clamping jaws. A CNC-controlled peripheral grinding step is performed based on CX interpolation principles. This rough grinds and finishes the longitudinal sides of the bar-shaped workpiece. Transport from the first to the second clamping position is effected by a clamping station, which concomitantly forms the holder for the face grinding operation.

Abstract: In an indexable insert having wide sides, inclined narrow sides are to be ground, that is to say the grinding allowance 38 is to be removed. To this end, the indexable insert is set in rotation about a driven axis of rotation between a clamping insert and a thrust bolt. Serving for the grinding is a grinding wheel which rotates about rotation axis and which has a circumferential surface 18a contoured in a circular shape and having a largest diameter and is composed of a leading region and a trailing region. The grinding wheel is guided relative to the indexable insert along the geometrical defining line which is formed by the generating line of the finished narrow side in the feed direction. The leading region tapering forwards effects preliminary grinding of the narrow side by longitudinal grinding, whereas the trailing region effects finish grinding by linear contact with the narrow side. The grinding wheel is held with the clamping flanges on a grinding spindle.

Abstract: A plastic hollow preform is drawn through a mold passage formed in a closed mold by applying a generally constant suction to a downstream end of a conduit having an upstream end connected to an output end of the mold passage. A flow cross section of the conduit is varied between its upstream and downstream ends so as to vary a rate at which the preform is drawn through the passage by the suction. The flow cross section is varied by displacing a valve element in the conduit between positions in which it differently blocks flow through the conduit.

Abstract: Between an intermediate roll unit and a dimensioning finishing roll unit of a continuous light-section or wire rod rolling train, a multifunctional section is provided with three parallel lines and at least the first and second rolling lines having rolling blocks and substantially all of the lines including cooling sections and/or temperature equalization sections. Via distributing guides and 180° loop forming path segments, the workpieces are selectively directable from the first line to the dimensioning finishing rolling unit without traveling over the second and third lines and to the dimensioning finishing rolling unit after travelling over all or part of the second and third lines.

Abstract: The invention relates to a process for the comminution of bulk materials comprising synthetic polymers which do not have an elastomeric behavior by mechanical, thermal or electromagnetic loading of the bulk materials, which comprises treating the bulk materials, before and/or during the loading, with oxidants which have a redox potential of greater than 1.5 V or subjecting them to corona, UV or plasma treatment without complete oxidation of the synthetic polymer taking place.

Abstract: Rolling stock is transported in a transporting device from a front roll stand to a rear roll stand. Between the roll stands, the rolling stock carries out an oscillation transverse to the transporting direction. At least one characteristic property, amplitude or frequency, of the oscillation is determined quantitatively and, from this determination, a tension or compression, existing in the rolling stock between the roll stands is determined. One of the roll stands is readjusted in such a manner, that a desired tension is built up in the rolling stock between the roll stands.

Abstract: A method of rolling a bar-shaped stock to predetermined end height and end width measured transverse to the end height and including providing a rolling will train having a plurality of arranged one after another active rolling mill stands having adjustable roll rips and forming rolling mill stand pairs, providing a respective plurality of hydraulic cylinder units for adjusting the roll rips of respective rolling mil stands, rolling the bar-shaped stock through the rolling mill stands, and compensating at least a fraction, individually for each of the plurality of rolling mill stands, of rolling force-caused spring-offs of the respective rolling mill stands by controlling operations of respective hydraulic cylinder units.

Abstract: In the case of a driving arrangement for a motor vehicle having a gearing casing which carries a gear box shaft with a gearwheel which is situated in parallel to a geometrical main axis and having a partial casing which carries differential gearing which has a ring gear meshing with the gear wheel and is arranged centrically with respect to the main axis, a storage chamber is provided in the partial casing which is concentric with respect to the main axis.