PURPOSE:To stabilize denitration and to enhance denitration efficiency by providing a chromium plated contact member with exhaust gas on the upstream side of a denitration reactor wherein the exhaust gas from an internal-combustion engine added with ammonia is catalytically reduced by a catalyst. CONSTITUTION:An internal-combustion engine and a waste heat recovery boiler provided with a denitratio...

PURPOSE:To make the convergence of an engine speed to the desired value performable so speedily, by operating an exhaust valve at a time when a difference between the engine speed and the desired speed is more than the specified value during shifting up. CONSTITUTION:When a select lever 7 is operated by a driving range, for example, a car is driven at second, if a driver operates an accelerator pe...

A method of and an apparatus for controlling the revolution speed of an engine, suitable for use in an automobile having an automatic transmission. Flow rate of auxiliary intake air by-passing a throttle valve is controlled by an auxiliary air control valve, the opening period of which is incremented in response to a signal which represents the state of the automatic transmission shifted from neut...

A sealed lead-acid battery is provided containing a sulfuric acid electrolyte of a sufficient amount to perform charging and discharging of the battery which is impregnated and retained in fine particles of silica located and placed around an assembled element. In this way, an inexpensive sealed-lead acid battery which exhibits high discharging performance.

The present invention relates to yarn-deflecting elements, especially for a hollow-spindle machine. Elements, characterised in that they are movable in translational motion by movement means from a first position during the normal operation of the machine, in which each yarn (2) is no longer in contact with the corresponding deflecting element and thus with the corresponding bearing element (...

PCT No. PCT/FR91/00735 Sec. 371 Date Mar. 10, 1993 Sec. 102(e) Date Mar. 10, 1993 PCT Filed Sep. 18, 1991 PCT Pub. No. WO92/05320 PCT Pub. Date Apr. 2, 1992.An excavating tool tooth includes a mounting area (10) and a working area (11). The working area (11) includes longitudinal bars (14-18) made of a hard material. The bars are inserted in the steel and snugly contact the tooth's cutting face. T...

A method of providing the surface area of a substrate with a first zone which is solvent-wettable and a second zone which is solvent-non-wettable, and which is particularly suitable for application to the printheads and nozzle plates of drop-on-demand ink jet printers or like products where the spacing between zones of the same kind can be as little as just tens of microns, and wherein the solvent...

A decanter centrifuge comprises a drum (1) with a conveyor (2) containing an inlet (4). The liquid to be separated flows in a jet centrally into the inlet (4) towards an end wall (11), at which the liquid is radially distributed and flows axially onwards towards the second end wall (13) through an area of the inlet (4) free of members imparting an angular velocity to the liquid. The inlet (4) is p...

The invention relates to a method of perforating three-dimensional or planar components, preferably plates. According to the invention, the components for an acoustic absorber are made of plastic or quartz glass and are machined using an energy beam.

To enhance the water vapour permeability, a leather especially for processing in the automotive industry has holes burned into it by means of a pulsed laser. The holes preferably have a diameter of 80 to 100 mu m and are spaced 2 to 5 mm apart.

The apparatus according to the invention reduces the forces which are necessary for the thread draw-off and which result in a specific thread pull, in that the frictional torques to be overcome in order to rotate the yarn bobbin are compensated and, furthermore, an additional torque acting in the run-off direction is imparted to the yarn bobbin. Each unrolling spindle is assigned a thread-pull com...

The invention relates to a method and a device for exactly separating a main stack from an auxiliary stack in continuous deliveries of sheet-processing printing machines. The object on which the invention is based is to develop a solution which guarantees the exact separation of the main and auxiliary stacks and which prevents sheets from slipping back in the direction of the sheet ascent during t...

The creel assembly, with yarn bobbins has a brake system for each bobbin (10) with a setting unit (13) with a limit stop (16) to give a rigid action on the brake (12) when it is operated by a spring (15) at a given force level.

A film is disclosed, which comprises an at least uniaxially stretched finely cellulated polyester film of a high surface roughness having an apparent specific gravity in the range of 0.4 to 1.3 and an opacifying power of not less than 0.2, and a coating applied to either or both of the opposite surfaces of the polyester film. The coating applied to the minute-cellular polyester film serves the pur...

The navigation system is for an independent vehicle (1) which is equipped with a lateral row of detectors (2). Magnetic beacons (3) are buried at intervals in the ground and create a localized field which in its turn creates a variable induced current in the detectors (2) depending on their position. Terminals consisting of magnets (151 to 155), whose number and polarity are chosen, form magnetic ...

The invention relates to a process for the preparation of isocyanate prepolymers in which polyurethane is dissolved in isocyanate at 120 to 180 DEG C in the presence of a stabilising substance.

The invention relates to a fork lift truck having a frame and a lifting device, the frame having at least two undercarriage axles and a driver's platform. The intention is to provide a solution by means of which a fork lift truck of this type can be used for different load capacity requirements without complex structural changes to the frame construction. This is achieved by virtue of the fact tha...

Lactobacillus growth and acid production has to date preferably taken place in batches and/or using a plurality of tanks. The process is intended to make it possible to carry out continuous lactobacillus growth and acid production with a growth/fermentation tank and to eliminate the necessity for one or more other tanks for growth, storage or metering. It is likewise intended to carry out the mete...