Abstract: A solenoid valve is provided for controlling fluid communication in a passage defined between a first and a second orifices. A valve seat is defined in the passage and a valve member is adapted to be urged into contact with the valve seat to interrupt fluid communication between the first and second orifices. A coil and a fixed core control movement of the valve member in response to energization of the coil. The valve member is attached to a magnetized rod which is coaxial with the core. When the coil is not energized, the magnetized rod is normally attracted toward the fixed core in response to induced magnetization of the latter, to keep the valve member away from the valve seat. In response to energization of the coil, magnetization of the core is reversed and the rod 28 is repelled so that the attached valve member is urged into contact with the valve seat.

Abstract: An arrangement is described for registering stretchable lids with mating product-filled troughs of a heat-sealed product container prior to the heat-sealing operation. The troughs are preformed at first intervals on a first strip, which is successively indexed through the first interval into the heat-sealing station. The lids are defined between regularly spaced detectable markings on a second strip, which is moved into the heat-sealing station simultaneously with the first strip. The markings on the second strip are normally spaced by a second interval slightly smaller than the first interval. At the end of each indexing movement, a marking on the second strip comes into alignment with a photocell to generate a signal.

Abstract: Amino-2 thiazoles of the formulae ##STR1## and ##STR2## wherein R.sub.1 and R.sub.2 are each selected from hydrogen, lower alkenyl radicals, lower alkyl radicals, lower cycloalkyl radicals, phenyl radical, lower cycloalkylphenyl radicals, lower phenylalkyl radicals, lower halogenoalkenyl radicals, lower halogenoalkyl radicals, lower halogenocycloalkyl radicals, halogenophenyl radicals, lower halogenoalkyl radicals, and the same radicals substituted by at least a hydroxy, R.sub.3 and R.sub.4 are each selected from hydrogen, lower alkyl and lower cycloalkyl, one at least of R.sub.1 and R.sub.2 being cyclic, and their salts, have valuable hypocholesterolemic activity.

Abstract: A method of making a glass die for moulding progressive concave-convex ophthalmic lenses of organic glass, i.e. of synthetic polymeric material, which have their convex surface of aspheric shape, wherein a glass blank for the die is formed with its convex surface of aspheric shape and is then supported on a support member having a concave spherical support surface while being heated to a temperature at which the glass deforms without flowing, so that the convex surface sags to conform with the spherical support surface and the aspheric character is transferred to the concave surface.

Abstract: Quadraphonically encoded left end right signals are fed to separate left and right signal phase shifters the outputs of which are fed to three variable gain amplifiers for each of the four corner loudspeakers of a quadraphonic playback system and also to three comparators which function to control operation of the variable gain amplifiers in such manner as to cancel cross talk by altering the decoding coefficients of the cross talk bearing channels.

Abstract: A process for isolating a protein fraction from an aqueous solution or suspension containing the said fraction in admixture with other substances, which comprises subjecting the aqueous solution or suspension to ultrafiltration to obtain a retentate, diluting the retentate, subjecting the diluted retentate to at least one further ultrafiltration treatment and recovering a retentate containing the protein fraction.

Abstract: In a disc brake of the type in which at least one fluid pressure actuated piston is associated with a caliper to urge a first friction element directly onto a first friction face of the disc, the caliper being slidable by way of at least one column on a torque-taking member to urge by reaction a second friction element on to the other side of the disc, a locking connection is provided between the second friction element and the column to immobilize the column with respect to the caliper through a removable support connection provided between the second friction element and the caliper. The locking connection is preferably comprised of at least one extension of the backing plate of the second friction element, this extension being designed to fit into a corresponding slot in the at least one column.

Abstract: The present invention concerns a high calorie food bar essentially devoid of sodium, potassium, and protein comprising a baked dough having 150-250 parts by weight of pregelatinized starch which has a viscosity in water of 250-500 Brabender units, 300-500 parts by weight of edible vegetable oil, 200-400 parts by weight sugar, and consumable coloring and flavoring. Unexpectedly the oil in this high calorie food bar does not separate or oil out upon baking. The high calorie food bar of the present invention is a tasty, appetizing and nutritious food for renal and other patients who require a diet high in calories and restricted in sodium, potassium and protein content. The present product contains about 6 calories per gram.

Abstract: The present invention relates to an antitumor agent comprising p-di(2-chloroethyl)amino-L-phenylalanine or N,N-bis(2-chloroethyl)p-phenylenediamine hydrochloride bound to a tumor specific antibody by peptide bonds. The antitumor agent of the present invention is prepared by reacting a cytotoxic agent, p-di(2-chloroethyl)amino-L-phenylalanine or N,N-bis(2-chloroethyl)p-phenylenediamine hydrochloride with a tumor specific antibody in the presence of a water soluble carbodiimide such as 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride and thereby forming a peptide bond between the cytotoxic agent and the tumor specific antibody.

Abstract: The isolation of certain dipeptide esters, known to be potent sweetening agents, is achieved by selectively extracting, with a suitable alkanol in a heterogeneous system, an aqueous solution containing the dipeptide ester together with a variety of impurities.

Abstract: Grinding machine of the copying type for grinding a concave surface of an article such as a lens blank, comprising a templet having a concave surface identical with that to be obtained on the article and with a mean sphere. The machine also comprises a pair of supports for the templet and the article, respectively, which are both rotatably driven in synchronism about two parallel axes, a movable copying head carrying a pin-point contact feeler engageable with the templet and a rotatably driven grinding wheel, and means for guiding the copying head so as to impart thereto a component of movement of rotation about fixed axis passing through the center of the mean sphere of the concave surface of the templet. This axis is parallel to a straight line passing through the centers of symmetry of the feeler and grinding wheel, while the distance between said straight line and the fixed axis is variable.

Abstract: A safety control method for limiting the temperature of a fluid to a given upper value comprising the sensing of the fluid temperature and the control of a servo-motor keyed in follow-up relationship to said temperature and acting upon a member controlling a parameter conditioning said temperature, wherein the improvement consists in the steps of effecting the detection so as to cause the displacement of a movable element through the expansion of a liquid heated up to a temperature varying in the same direction as the sensed temperature and transmitting said displacement through a hydraulic circuit relay to a hydraulic ram actuator forming said servo-motor.

Abstract: The present invention relates to compounds of the following formula ##STR1## wherein Y is straight or branched chain alkylene containing 1-4 carbon atoms; X is hydrogen, halo such as fluoro, chloro, bromo or iodo, or lower alkyl containing 1-7 carbon atoms; Ar is phenyl, pyridyl, mono-substituted phenyl, wherein the substituent is halo such as fluoro, chloro, or bromo, or lower alkyl having 1-7 carbon atoms; and R.sub.2 and R.sub.3 are lower alkyl having 1-7 carbon atoms, or R.sub.2 and R.sub.3 together with N is an azamonocyclic ring selected from the group comprising 1-pyrrolidinyl, piperidino, 4-phenyl-4-hydroxypiperidino, 4-phenyl-4-hydroxymethylene, 4-phenyl-4-carboxypiperidino, 4-phenyl-4-carbloweralkoxypiperidino, or 4-phenyl-4-acetoxypiperidino substituted piperidino and morpholino, or an azabicycloalkanyl containing 6 to 9 carbon atoms and having at least 5 atoms in each ring of the azabicycloalkane. These compounds are useful intermediates for preparing potent antidiarrheal compounds.

Abstract: Device for triggering the discharge of flash tubes, comprising a priming transformer whose primary winding is connected up in series with a priming capacitor and whose secondary winding is connected up in series with at least a flash tube, an ignitron connected up in series with the tube and a transformer for controlling that ignitron, the primary winding of that transformer being connected up in series with a control capacitor.

Abstract: An enzymatically active product is prepared by reacting an enzyme, e.g. trypsin, with a polymer carrying both free aldehyde groups and free acid groups, e.g. a copolymer of acroelin and acrylic acid containing at least 10 % of free aldehyde groups based on the total of free aldehyde and acid groups. The product has a variable solubility in aqueous medium so that the enzyme bound to the polymer can be recovered for reuse by adjusting the pH to precipitate the polymer.

Abstract: A grooved contact roller is movable in a housing between two switching poions determined by an elastic positioning element which defines an intermediate position in which the contact roller is in a state of unstable equilibrium. The positioning element is engaged in the groove of the roller and the latter is disposed flat against the bottom of the housing. A slidable cover for the housing constitutes an actuating member for the switch and has a journal which extends toward the bottom of the housing and is engaged with clearance in a central aperture of the roller.

Abstract: The behavior in the cold of crude oil or petroleum distillates may be improved by incorporation of polymeric substances such as a hydrogenated polybutadiene or a hydrogenated copolymer of butadiene with at least one conjugated aliphatic diolefin of 5-8 carbon atoms. The additive is active at concentrations of from 10 to 1,000 grams per m.sup.3 of oil.

Abstract: A water-dispersible composition is disclosed. This composition contains co-agglomerates of finely-divided particles of a normally non-dispersible material and a silicon dioxide flow agent having a thin coating of an emulsion of edible fat and glycerol. The composition may optionally include flavorants and other additives.

Abstract: A portable electrical device has a molded body having a cavity closed by a rear wall. Two conductive prongs project through the rear wall for reception into a phase port and a neutral port, respectively, of an electrical outlet. A retractable grounding pin or prong, when in an extended position, extends outwardly from the rear wall in parallel spaced relationship with the two prongs and is receivable by a ground port of the outlet if there is one. When the device is used with an electrical outlet not having a ground port, the grounding pin retracts within the cavity against a spring bias. An indicating pin is operatively connected to the grounding pin and moves, in response to retracting movement of the grounding pin, to an exposed position within a recess in a front wall of the body to provide a visual indication that the device is not grounded by the grounding pin.

Abstract: A fluent product dispenser in which the product is dispensed by means of compressed air has a dispenser body having a dispensing means therein for mixing and dispersing the fluent product and compressed air has a piston-cylinder means thereon by which the air is compressed, and when it reaches a certain predetermined pressure, is suddenly released. The fixed member of the piston-cylinder means has a fluent product containing recess opening toward the movable member of the piston-cylinder means, and a product pressurizing piston in the product containing recess has an end exposed toward the movable member or the piston-cylinder means. A product control valve means controls the flow of product from the product containing recess to the dispensing nozzle through the body. Likewise, a compressed air valve opens to permit flow of compressed air through a compressed air path in the body to the nozzle when the compressed air reaches a certain predetermined pressure.