Abstract: A switchable finger lever (1) of a valve train of an internal combustion engine, said finger lever (1) comprising an outer lever (2) between whose arms (3) an inner lever (4) extends, a support (9) for at least one gas exchange valve being arranged on one end (7), said inner and outer levers (4, 2) extending on a common axle (10) in the region of said one end (7), said finger lever (1) further comprising a lost motion spring means (11) acting between said inner and outer levers (4, 2), said outer lever (2) possessing on the undersurface (8) on another end (12), a contact surface (13) for a support element, a coupling element (14) is arranged above or laterally of said contact surface (13), which coupling element (14), for realizing coupling, can be brought partially into engagement with an entraining surface (15) of an adjoining crossbar (16) of the inner lever (4), wherein the inner lever (4), starting from its crossbar (16) on the another end (12), merges into a box-like open center portion (17) having two

Abstract: The invention relates to an insulating frame of an electrolysis cell having a microstructured internal section allowing the penetration of the electrolyte even if the structured section is partly or completely overlapped by the membrane, and to an electrolysis cell equipped with the same.

Abstract: A rocker arm (1) made of thin-walled sheet steel which rocker arm is intended for a suspended arrangement together with other like rocker arms under a girder-like carrier (2) of a valve train of an internal combustion engine, the rocker arm having an inverted U-shaped profile, a support (7) for a gas exchange valve is formed on one end (6) of an underside (5) of a crossbar (4) of the rocker arm, an upper side (9) of the crossbar (4) is stamped in the region of the support (7) by a stamping and extrusion molding method toward the underside (5), so that an M-like cross-section with a longitudinal channel (10) formed on the upper side (9) is obtained and at its other end (11), the rocker arm (1) has a fork-shaped, open configuration and merges into a region (12) which is angularly bent towards the underside (5) and on which a roller (13) forming a cam contacting surface is arranged, said rocker arm (1) of this type possesses, among other things, an excellent stiffness, is simple to manufacture and has a small de

Abstract: A device for sowing seed, fertilizer in an existing lawn, comprising: a chassis, a movement system, fitted to the chassis, to move the device across the ground in a certain direction, a bearing-mounted pin disk in the chassis around a horizontal axis, a seed dosing device which doses the seed to be sown accurately and according to an adjustable amount, a guiding plate which at the bottom pushes the existing grass forward in the direction of the movement and at the top distributes the dosed seed in rows and sends the seed to the pin disk, wherein the pin disk collects the dosed seed from the guiding plate and plants the seed in the soil underneath the lawn during rotation.

Abstract: The invention relates to an electrolytic cell for the production of chlorine from an aqueous alkali halide solution, which mainly consists of two semi-shells, an anode, a cathode and an ion exchange membrane arranged between the electrodes. Spacer elements are arranged between the ion-exchange membrane and the electrodes for fixing the membrane in position and distributing the compressive forces, made of electrically conductive and corrosion-resistant material on at least one side of the membrane.

Abstract: Linear guide unit, having a guide carriage (2) which is arranged such that it can be displaced longitudinally on a guide rail (1), and having a length measurement system, the measuring head (3) of which interacts with a measuring scale (4) which is arranged parallel to the guide rail (1), the measuring scale (4) being arranged in a hollow body which carries the measuring scale (4), is arranged at a spacing from the guide rail (1) and is mounted at its ends.

Abstract: A method of variable valve timing in an internal combustion engine in which the valve opening and closing timing of the actuated gas exchange valves of the internal combustion engine can be varied as a function of engine speed by adjusting means for adjusting at least one camshaft relative to a crankshaft, said internal combustion engine comprising hydraulic valve lash adjusters for adjusting a valve lash of the gas exchange valves, said lash adjusters being configured at least on one of an inlet side and an outlet side as idle stroke elements which, when actuated, at first produce an engine speed-dependent idle stroke and to provide a method of variable valve timing for internal combustion engines comprising a camshaft adjustment and a hydraulic valve adjustment with an idle stroke function that guarantees favorable valve timing in all operational situations of the internal combustion engine and, at the same time, improves the thermodynamic exploitation of such internal combustion engines, at each adjustment

Abstract: A carbon-supported platinum catalyst obtained by chemical reduction of in situ-formed platinum dioxide on a carbon support and a method of production thereof.

Abstract: The invention relates to a device (1) for varying the control times of an internal combustion engine (100), having a driving wheel (12), a driven element (8) and a swashplate mechanism (2). The torque of a crankshaft (101) is transmitted by means of a primary drive to the driving wheel (12) and further by means of the swashplate mechanism (2) to the driven element (8) which is connected fixedly in terms of rotation to a camshaft (9). The swashplate mechanism (2) is composed of at least one bevel wheel (3) and a swashplate (5) which is mounted on an adjusting shaft (15). It is the aim of the invention to reduce the mass and the installation space of the device (1).

Abstract: A sprag for a sprag-type freewheel clutch having a profile comprised of multiple profile sections, the sprag having at least the profile sections of an inner engagement curve, an outer engagement curve and a first and a second lateral curve, wherein the outer and inner engagement curves each form a component of a logarithmic spiral.

Abstract: An authentication system and a method for signing data are disclosed. The system uses a hardware software partitioned approach. In its implementation the system of the invention compares favourably with performance and other parameters with a complete hardware or full software implementation. Particularly, advantageously there is a reduced gate count. Also as disclosed in the invention the system makes it difficult for hackers to attack the system using simple power analysis.

Abstract: It is described a bipolar plate consisting of a single wall and a perimetrical sealing frame obtained by folding and provided with a planar abutment surface for the frame-to-wall welding. The wall is further provided with projections on one face thereof preferably obtained by moulding, and with supports on the other face consisting of sheet strips housed in the recesses formed by the concave part of the projections. The projections substantially extend along the entire length of the bipolar plate. The projections and supports are connected to electrodes or current distributors. The projections, the supports, the single wall and the perimetrical frame are made of the same metal or alloy. The electrode or current distributor supported by the projections, the same projections and the supports are welded together by a single pass of arc-welding or preferably laser-welding.

Abstract: An articulated joint coupling (1) for rail vehicles comprises a coupling lug (3), which engages into a coupling fork (4), and a spherical bearing (2) in the coupling lug (3), with the spherical bearing (2) having an inner ring (5) with a convex surface (6) which is pivotably mounted in an outer ring (7) with a concave surface (8), and with the outer ring (7) being fastened in an opening (14) of the coupling lug (3). To fasten the outer ring (7) in the opening (14) of the coupling lug (3), both the outer ring (7) and also the coupling lug (3) have in each case one groove (15, 17), with a clamping ring (18) lying in the groove (17) of the outer ring (7) and simultaneously in the groove (15) of the coupling lug (3).

Abstract: A rate control means for rate allocation in JPEG2000 processing apparatus is disclosed. The rate control means includes means to receive various parameters from the tier-1 coder and means to calculate R-D slope, means for composing a bucket element, means for comparing the RD slope of each bucket element with the threshold slope of each bucket, and selecting the bucket into which the current element is to be added; means for accepting the selected bucket number and generating an address for storing the current bucket element; means for keeping a count of, number of elements in each bucket and the sum of the differential byte count of each element in that bucket; for all buckets; means for including the bucket elements and means for keeping the record of number of coding passes and number of bytes to be included for each code block, during and after the rate control.

Abstract: A distributing element for an electrolyte percolating-type electrochemical cell comprises an external feeding manifold and an assembly formed by a gas diffusion electrode, a percolator and optionally an on-exchange membrane. The element is particularly suitable for chlor-alkali electrolysis cells and alkaline fuel cells. It is also disclosed a method for retrofitting membrane electrochemical cells by inserting the distributing element of the invention therein.

Abstract: A process for producing a wear-resistant coating and to a wear-resistant coating on predetermined surfaces (2) of machine or engine parts (1) consisting of a sintered material which are exposed to frictional wear, for fuel feed units in particular, comprising at least one metal-free amorphous hydrocarbon layer (5) with sp2- and sp3-hybridized carbon applied to the predetermined surface (2) of the machine or engine part (I) for reducing friction and increasing the wear resistance of the predetermined surface (2) of the machine or engine part (1), and at least one intermediate layer of a metal-containing hydrocarbon layer formed between the predetermined surface of the machine or engine part and the amorphous hydrocarbon layer wherein the metal is a combination of W, Ti, Hf and Ge.

Abstract: A polymeric composition suitable for manufacturing heat sealable films or sheets comprising, polyethylene terephthalate (PET) to the extent of about 80% to 95% by mass of the total composition; a polymer additive for lowering the melting point of the composition selected from Polyethylene Naphthalate (PEN), Polytrimethylene Naphthalate (PTN), in-situ formed Polyethylene Naphthalate (PEN) and in situ formed Polytrimethylene Naphthalate (PTN) to the extent of about 20% to 5% by mass of the total composition; a nucleating agent to the extent of about 200 to 1500 ppm by mass of the composition; a polycondensation catalyst to the extent of about 30 to 300 ppm by mass of the composition; a clear fast reheat (CFRH) additive to the extent of about 10 to 30 ppm by mass of the composition; a color toner to the extent of about 0.75 to 25 ppm by mass of the composition; and a heat stabilizer to the extent of about 20 to 55 ppm by mass of the composition.

Abstract: The invention relates to the production of multilayer electrodes on valve metal substrates, through a method comprising the application in alternate cycles of a solution containing precursors of noble metals, and of a second solution containing transition metals capable of forming protective coatings. The resulting electrodes are useful in several applications, among which copper and other metal plating and the treatment of waste or tap water.

Abstract: According to the present invention, an outer lever (1) of a finger lever (2) that can be switched to different lifts for at least one gas exchange valve is made by a deep drawing method. A salient feature of the invention is that through a special trimming operation of the cup-shaped base body (16) that is formed in a first step of the method, running contact surfaces (14, 15) for cams, preferably high-lift cams, are generated on upper sides (12, 13) of arms (4, 5) of the outer lever (1). Through the deep drawing method of the invention, only relatively low fabrication costs are to be expected.

Abstract: A catalytic process for preparing aliphatic straight-chain and ?-alkyl-branched carboxylic acids of 5 to 13 carbon atoms by catalytic oxidation of the corresponding aldehydes by means of oxygen or oxygen-containing gas mixtures in the liquid phase in the presence of a catalyst system contains alkali metal carboxylates or alkaline earth metal carboxylates or a mixture thereof in an amount, calculated as alkali metal or alkaline earth metal, of 0.5 mmol to 15 mmol per mol of aldehyde used and also metals of groups 4 to 12 of the Periodic Table of the Elements, cerium or lanthanum in amounts of not more than 5 ppm, based on the aldehyde used, or compounds of such metals, with the catalyst system being the reaction product from an aldehyde oxidation reaction.