Abstract: An illuminating optical system for use in a projection exposure device with high utilization efficiency of the light from the light source and capable of easily realizing with simple construction is disclosed. The system comprises a light source, a light flux separating optical system for separating a light flux from the light source, a condenser optical system for leading the light flux separated by the light flux separating optical system on a reticle, and a diffraction optical unit included in the light flux separating optical system and having a linear grating pattern for separating the light flux from the light source into four.

Abstract: A pneumatic tire particularly adapted for cars, is provided with belt strips (7, 8) each comprising a first and a second series of cords (7a, 7b, 8a, 8b) made of different materials, alternated with each other axially across the width of the tire according to a preestablished sequence. The cords (7b, 8b) of the second series, made of aramid or glass for example, cooperate with those of the first series (7a, 8a), made of steel, to withstand tensile stresses in the longitudinal direction. Conversely, the cords (7b, 8b) of aramid or glass have a greater compliance than the steel cords (7a, 8a) towards compressive stresses. The elastomer incorporating the cords (7a, 7b, 8a, 8b) is filled with reinforcing fibers, short aramid fibers or aramid pulp for example, and has a modulus of elasticity between 15 and 50 megapascals.

Abstract: In an endoscope system including an endoscope having an insertion section to be inserted into a cavity under inspection, a bending portion which is provided in the insertion section near a distal end thereof and is bent in at least up and down directions and an operation section to which a proximal end of the insertion section is connected and a disposable protection cover having an insertion section dover for covering the insertion section of the endoscope and having formed therein an insertion section inserting channel into which the insertion section of the endoscope is insertable and conduit channels, the insertion section inserting channel and conduit channels are both crossed by a line which is parallel with the up and down directions, so that the distal end of the insertion section can be correctly bent in the up and down directions without being influenced by the conduit channels.

Abstract: An optically active phenol useful in the preparation of liquid crystalline compounds which is represented by the formula (V): ##STR1## wherein R.sub.2 represents an alkyl or alkoxyalkyl group having 1 to 20 carbon atoms optionally substituted by halogen atoms; Z' represents ##STR2## wherein q represents a number of 1 to 5 and * indicates asymmetric carbon atom; l represents a number of 2; t represents a number of 1 to 5; s represents a number of 0 or 1.

Abstract: Control equipment (CE1) generates an ordered value (AOL) of a control angle (.alpha.) in dependence on a limiting signal (AMINL, AMAXL), capable of being influenced, for a converter included in a series-compensated converter station. A calculating value (AFIRL) of a control angle is calculated continuously according to a predetermined relationship (H'1, H'2) which at least approximately imitates a relationship according to which, at a firing voltage (Ufir) for the valves of the converter equal to a preselected value (Uvref), said control angle is a function (G'0) of a current (Id1) and a voltage (Un1) in the converter station and the limiting signal is formed in dependence on the calculating value. (FIG.

Abstract: In a first form, a layer of flexible transparent holographic film is coated on one side and a flexible open mesh scrim is disposed between the coating and a layer of flexible transparent reinforcing material. The scrim is secured to the coating and the reinforcing material by a flexible transparent adhesive. A second form is similar to the first form and has a second open mesh scrim disposed between the coating and layer of flexible transparent material and disposed adjacent the first scrim. A third form has two spaced layers of flexible transparent material with a scrim disposed therebetween and held in place by a flexible transparent adhesive; and the scrim has scrim members including threads of holographic material. A fourth form has ,two spaced layers of flexible transparent material with a scrim disposed therebetween and held in place by a flexible transparent adhesive; and particles of holographic film are disposed between the pair of layers.

Abstract: Disclosed is an animal feed manufacturing method in which powdered fish oil of a main raw material is obtained by processing fishes containing a large amount of docosa hexaenoic acid (DHA) and eicosa pentaenoic acid (EPA). The animal feed manufacturing method includes the steps of adding urea to fish oil together with a monosodium glutamate (MSG) by-product and fermenting the fish oil, separately removing water and phospolipid contained in the fermented fish oil, adding quicklime to the separated fish oil and cooling the quicklime-added fish oil via gumming and salting-out processes, and thereby obtaining powdered animal feed using a cooling roller or presser.

Abstract: The handling device is mounted on the lifting blades of a forklift truck and held in position by a safety chain. A frame includes a pair of spaced support members adapted to support the wheels of a wheel assembly therebetween. A removable adapter bar is stored on a stop plate of the frame when larger wheeled assemblies are handled, and may be moved to the outer ends of the support members when smaller wheeled assemblies are handled, in which case the bearing races at the ends of the wheel assembly are supported on conventional bearing race adapters which are supported on the stop plate and the adapter bar. The adapter bar is retained on the stop plate by a pair of spaced plates and a pin on the adapter bar which is received in a hole in the stop plate. The adapter bar is retained at the outer ends of the support members by a pair of spaced plates on one support member and a hole in the other support member which receives the pin on the adapter bar.

Abstract: Apparatus and method for manufacture of DR (Double Reduced) steel strip in which a continuous annealing furnace is arranged for annealing of cold-reduced steel strip passing continuously through said furnace, and a rolling mill for cold-rolling of steel strip is arranged to receive in-line the output of annealed steel strip from said furnace. The mill has at least one roll stand having a pair of work rolls of which only one is driven externally. Rolling fluid, preferably free of mineral oil, is supplied to the strip being rolled in the rolling mill, and is removed from the strip prior to entry of the strip to downstream tension-applying means.

Abstract: A cleansing agent, in particular for the cleaning of printing cylinders, rollers, blankets, plates and other parts of printing machines and presses, comprises from 90 to 60% by weight of a C.sub.6 -C.sub.14, preferably C.sub.6 -C.sub.12, more preferably C.sub.6 -C.sub.10, most preferably C.sub.7 -C.sub.9, hydrocarbon ester of a fatty acid of a mixture of such acids and from 10 to 40% by weight of a vegetable oil, based on the total weight of the fatty acid hydrocarbon ester and the vegetable oil in the cleansing agent. Preferably, the content of vegetable oil is about 25% by weight. Preferably, the fatty acid ester component is a 2-ethylhexyl ester of coconut (C.sub.8 -C.sub.14) fatty acid and the vegetable oil is a highly refined deodorized soyabean oil.

Abstract: A metal wire, having a steel core and being provided with a layer of cladding of a zinc/manganese alloy containing between 5% and 80% of manganese. The wire is used as a reinforcement structure for tires or other products of elastomer material. Several embodiments of a process for applying the cladding on the steel core by electrodeposition of the zinc/manganese alloy are also described.

Abstract: Process for the production of thermoinsulating structural elements, which includes:a)producing by thermoforming a cell made of thermoplastic material;b)pulling on such cell on a male die half shell;c)closing the die with a negative half shell suitable to form a cavity between the half shells,d)inserting in the cavity bored hollow elementse)filling the cavity with foamed pearls in thermoplastic polymers;f)sintering the pearls with steam fed through hollow elements.g)cooling and extracting the hollow elementsh)extracting the structural element from the die.

Abstract: A torsional vibrator comprises a direct-current electric motor provided with induced windings supplied with direct current through inverter means capable of changing their polarity in an alternating manner with a preselected frequency. To a shaft of the electric motor a wheel is made integral that is formed by a rim and by a tire and acceleration transducers are associated with the rim and with the tire of the wheel. The shaft of the motor is driven to execute angular oscillations that torsionally excite said wheel and cause it to vibrate in rotational direction. The acceleration transducers detect rotational vibrations and provide measurements of acceleration of the rim and of the tire.

Abstract: To provide an injection system for an internal combustion engine operating on self-igniting liquefied gas as a fuel, and to minimize cavitation and related problems of fuel delivery as well as wear, the fuel tank is configured as a low-pressure storage tank which is connected to a pressure control unit maintaining a constant interior pressure at a level above that of the vapor pressure of the liquefied gas, preferably at 6 to 30 bar, approximately, and further the injection system is configured as a leakage-free system.

Abstract: In order to increase the safety of an injection system in an internal combustion engine operating on self-igniting liquefied gas as a fuel, especially after the engine has been switched off, the proposal is put forward that at least one pressurized part of the injection system be depressurized by means of a shut-down device, the latter including at least one pressure relief line which is controlled by at least one valve and opens into a tank with a low pressure level.

Abstract: Intelligent data storing apparatus for use in a control system comprising at least one programmable logic controller (PLC) for controlling one or more devices to perform a process, the process having a number of variants. The apparatus comprises means for receiving a data request including a code designating a process variant and a code indicative of one or more designated devices requiring control in order to implement the process variant; a database dictionary defining a tree structure relating operational data elements to particular variants of the process and particular devices; and means for retrieving operational data elements from the database using pathnames corresponding to the structure specified in the database dictionary and for formulating the retrieved data into a block having a predetermined structure for outputting to the PLC.

Abstract: A modular flooring system for stables is made up of a plurality of modules that each include a frame element (1) and an insertion element (30). Each frame element (1) is equipped with supporting profiles (6,7) intended for the support of the insertion element (30), which is placed in the frame element when in use. The insertion elements can be easily replaced in accordance with the type of animals expected to be walking thereon.

Abstract: A method of making a polyimide coated heavy metal fluorinated fiber includes the steps of drawing an optical fiber through a low-temperature curing polyimide solution to form a polyimide coating which cures in a range of about 200.degree. and 390.degree. C. A low curing temperature enables a low temperature profile to be used for curing the coating. The low-temperature curing conditions provide a maximum fiber exposure temperature above the glass transition temperature of the fiber but minimize crystallization of the fiber during curing. The method is also applicable to chalcogenide fibers which carry optical signals in the infrared region.

Abstract: A binder solution of a phenolic novolak resin in solvent, preferably furfuryl alcohol containing at least one chemical agent such as amines containing one to five, preferably two to four, nitrogen atoms, glycerine or mixtures thereof. Preferably, the binder solution contains about 0.2 to about 1.5 weight percent water. The binder solution is for binding refractory objects, preferably those containing doloma (calcined dolomite) aggregate. Methods of mixing these ingredients and using the mixture are also disclosed. Bricks made from the doloma aggregate mixed with the binder solution show good ambient temperature green strength and enhanced modulus of rupture after curing and coking.