Abstract: A detector for detecting a characteristic and a speed of a vehicle includes a first magnetic field sensor. The first magnetic field sensor includes a magnetically variable resistor that changes resistance in response to being exposed to a magnetic field. A bias is applied to the magnetically variable resistor and a change in the resistance thereof in response to an applied magnetic field is detected by an amplifier. The amplifier generates a first analog signal indicative of changes in the resistance of the magnetically variable resistor. A differentiating circuit differentiates the first analog signal and produces a first output that changes binary state in response to detecting a predetermined change in the differentiated first analog signal. A counter accumulates values at a predetermined rate and a microprocessor stores values of the counter corresponding to each change in the binary state of the first output of the differentiating circuit.

Abstract: A method of use of a composition including either or both isomers of hydrogenated methylbenzotriazole, namely, 5-Methyl-1H-Benzotriazole or 4-Methyl-1H-Benzotriazole which have been at least about 50% hydrogenated, to form corrosion inhibiting films on metal surfaces in an aqueous environment. The hydrogenated methylbenzotriazole compositions provide both improved passivation and improved film persistence when charged to aqueous industrial systems either on a continuous or on an intermittent basis. Continuous dosing is generally kept at a constant >0.5, typically 1-2 ppm in the aqueous system to be treated; intermittent doses are generally 10-20 ppm once every week or two or more.

Abstract: A power transmitting structure for a mid-mount mower having a mower unit disposed in a middle region of a vehicle body. The power transmitting structure includes an engine disposed adjacent front wheels, axle shafts for rotating drive wheels, a stepless transmission operatively connected to the axle shafts, and a power branching device. The power branching device includes a branch input shaft connected to the engine through an engine power transmitting device extending longitudinally of the vehicle body, a first branch output operatively connected to the stepless transmission, and a second branch output operatively connected to the mower unit. The first branch output is a pulley connected to an input pulley of the stepless transmission through a belt to transmit power to the input pulley. The power branching device is disposed independently of and spaced from the stepless transmission. The mower unit is suspended below the engine power transmitting device between the engine and the power branching device.

Abstract: A method of controlling a reheat furnace to deliver pieces at an aim discharge temperature comprises the steps of determining the ratio between calculated reheat furnace discharge temperatures and measured temperatures of pieces in a rolling mill receiving the output of the reheat furnace, filtering this ratio based upon time in the rolling mill to provide the current filtered relationship between calculated discharge temperatures and said measured temperatures to provide filtered ratios, comparing desired temperatures in the rolling mill with said measured temperatures of pieces in the rolling mill to establish error values, filtering the error values based upon time in the mill to provide filtered error values, and processing the filtered error values and the filtered ratios to establish a short-term bias to the aim extract temperature.

Abstract: A coupling is provided between two structural elements, each comprising at least one part having tensively strong gauze formed for instance of metal such as steel, which parts can be registered in interlaced relation and which can be mutually coupled in this interlaced and registered situation by an elongate coupling element. A very practical embodiment is that in which the one part has at least two hook-like or loop-like protrusions which can be placed through the other part, wherein the elongate coupling element can be placed through these protrusions to thus block rearward displacement.

Abstract: A rotary hearth furnace includes a base having a plurality of first plenums, an upper chamber having a plurality of second plenums and a hearth rotatable between the base and the upper chamber and having a plurality of third plenums. The hearth is moveable between the base and the upper chamber so that two or more of the third plenums are positionable to receive gas exhausted by one of the first plenums and to discharge the received gas into one of the second plenums.

Abstract: An apparatus for sequentially pyrolyzing a plurality of samples held in sample tubes comprises a substantially vertical passage through which tubes carrying the samples may be passed; an upper gas-tight valve for closing off the upper end of the passage; a lower gas-tight valve for holding a sample tube in the passage; a distribution valve directing purge gas and carrier gas to the top end of the passage and for passing pyrolyzed sample from the bottom of the passage to an analytical device; and an electrical heating element for heating the passage to temperatures at which a sample will be pyrolyzed.

Abstract: A scraper blade assembly utilizes an over-center spring to bias the scraper blade assembly both into engagement and out of engagement with a conveyor, such as a moving belt, on a device for separating solids from liquids. The over-center spring extends between a fixed attachment point on the device and a pivoting attachment point on a handle secured to the scraper blade assembly. The invention is particularly applicable to belt filter presses and gravity belt sludge thickeners. An over-center spring may be secured to both ends of the scraper blade assembly to minimize torsional deformation of the scraper blade by the material being separated from the moving belt.

Abstract: A method and apparatus for drying solid foodstuffs is disclosed. The apparatus comprises a housing in which a gas permeable conveyor carrying the foodstuffs is arranged. The housing is divided into at least one drying section and at least one cooling section near the discharge end of the conveyor. Each section comprises means for generating a flow of drying or cooling gas along the foodstuffs, perpendicular to the conveyor. After passing along the foodstuffs, the gas is recirculated to drying or cooling means arranged in each section. The foodstuffs are thus first heated and then cooled down, so that the temperature thereof at the discharge end is substantially equal to the temperature at which the foodstuffs are supplied. The drying and cooling means are arranged such, that the temperature of the foodstuffs does not exceed 40.degree. C., and that the foodstuffs leave the apparatus at a temperature of less than 5.degree. C.

Abstract: A method and apparatus for controlling needles of a knitting machine based upon comparing a plurality of predetermined position control patterns defining target positions with the position of a yarn feeder and a needle. When the positions are not the same, each needle is incrementally moved based upon the present position of the needle and the determined target position of the needle.

Abstract: A hopper car having smooth side walls being reinforced by a horizontal beam along a horizontal seam. The roof of the car has a plurality of extruded beams, including a pair of coaming extrusions extending the length of a hatch opening. The coaming extrusions include tabs to which the hatch covers can be attached at any location. A hollow side sill is formed with tabs to attach the side sheets and the sloped floor panels. A four piece hood encases the center sill along its length.

Abstract: An integrated safe excavation apparatus utilizing supersonic air jets coupled with high flow, pneumatic vacuum transport and a unique separation system to excavate earth and other like material for the purpose of repairing, replacing or installing buried utility lines, remediating contaminated soils, uncovering buried objects containing discarded hazardous waste, safely exposing unexploded ordnance and other like operations.

Abstract: Stainless steel is improved in anti-microbial property by the addition of Cu in an amount of 0.4-5.0 wt. % and the precipitation of Cu-rich phase at the ratio of 0.2 vol. % or more. The Cu-rich phase is precipitated as minute particles uniformly dispersed in the matrix not only at the surface layer but also at the interior by heat treatment such as annealing or aging at 500.degree.-900.degree.. Since the anti-microbial property is derived from the material itself, the underlying stainless steel does not lose the excellent anti-microbial property even after it is polished or mechanically worked. Due to the anti-microbial property, the stainless steel is useful as material in various fields requiring sanitary environments, for example, kitchen goods, electric home appliances, devices or tools at hospitals, parts or interiors for building and grips or poles for electric trains or buses.

Abstract: The invention relates to a method for treating a contaminated slurry comprising subjecting the slurry to a treatment wherein contamination is transferred from a substantially solid phase of the slurry to a substantially liquid phase of the slurry.

Abstract: A label printing apparatus includes a printing unit for printing an image on a front surface of a label tape having a back surface bearing an adhesive layer via an ink ribbon having a back surface bearing a removal layer. The apparatus further includes a superposed-travelling guiding mechanism for guiding traveling of the label tape and the used label tape together, with the removal layer of the ink ribbon being contacted with and superposed on the adhesive layer of the label tape.

Abstract: A driver's seat for a machine, in particular for an industrial truck, has a seat surface which is inclined forward, a knee rest and a back rest. In one embodiment, the driver's seat swivels and the seat also includes a heel rest and a toe rest. Control elements can be located on the swivelling driver's seat in the vicinity of the knee rest, the heel rest and/or the toe rest.

Abstract: An apparatus for cutting grass sods out of grass land and for stacking or rolling up into a predetermined amount of stacks or rolls of one or more grass sods. The apparatus includes a frame provided with two or more wheels suspended thereon, a cutting head suspended in the frame for cutting under the grass sods, a first conveyor which is mounted on the frame in driving direction as seen from behind the cutting head and which repeatedly transports the grass sods from the cutting head in an upwards direction, a second conveyor mounted on the frame in a driving direction as seen from behind the first conveyor and whereof at least one part is moveable with respect to the first conveyor and/or the other part to the second conveyor.