Process and appliance for treating an aqueous liquid, in particular for removing boiler scale and corrosion and for preventing the formation of boiler scale and corrosion in vessels and pipe conduits through which the treated liquid flows. In the treatment, the liquid is conducted through a treatment compartment 1, on the side of which is mounted at least one electrode 4 which is electrically isol...

According to the process used in particular for removing scale and corrosion, and to prevent the formation of scale and corrosion in vessels and pipelines through which the liquid to be handled passes, the liquid is fed during treatment, through a treatment chamber (1), on the side of which is arranged an electrode (4), which is electrically insulated from the liquid. A high-voltage source (8) is ...

Compounds of formula I wherein R1 represents a sugar residue X and Y are the same or different and stand for oxygen or the imino group, and R2 and R3 are the same or different and represent an optionally substituted acyl group, which process i.a. immuno-modulatory activity.

{PG,1 Deoxynarasin antibiotic complex, comprising 20-deoxynarasin and 20-deoxy-epi-17-narasin, is produced by submerged aerobic fermentation of {i Streptomyces aureofaciens {l NRRL 11181. 20-Deoxynarasin and 20-deoxy-epi-17-narasin are separated and isolated by chromatography. The deoxynarasin complex, 20-deoxynarasin and 20-deoxy-epi-17-narasin are antibacterial and anticoccidial agents and also ...

Compounds of formula I wherein R1 represents a sugar residue X and Y are the same or different and stand for oxygen or the imino group, and R2 and R3 are the same or different and represent an optionally substituted acyl group, which process i.a. immuno-modulatory activity.

An appliance for the repair of rubber or plastics conveyor belts 1, usually having reinforcement inserts 2, and for making them endless, comprises heatable press plates 3, 4, upper girders 5, lower girders 6 and hydraulic pressure-producing equipment 7. The girders 5, 6 are connected together in pairs by tensioning bolts 8 with mechanical tightening facilities 9 and undergo bending deformation und...

An elongate member, for example, in the form of a flag pole, comprises two components 2, 3 interconnected, with part of one component being inserted into an open mouth defined by the other component. One component carries two bushes 4, 5, each bush defining a plurality of peripheral grooves of different depths. An O-ring is associated with each bush, each O- ring being positioned in a selected gro...

The boiler is for heating liquids by flameless combustion of a fuel mixture in a radiant packing 12. A distributor 24 for the fuel mixture is slide-mounted centrally in the upper boiler end wall 6. Arranged in the middle part of the lower boiler end wall 4 there is a grating 28, which protrudes upwards into the combustion space and has through- openings 36 for the combustion gases, directed from t...

PURPOSE:To prepare a firmly bonded laminated material without craters on the surface skin by specifying the average bore diameter and breathing degree of cell of polyurethane foam and also specifying melt flow index of polyolefin. CONSTITUTION:A laminated material is manufactured by melting, extruding and solidifying polyolefin on the surface of polyurethane foam. Polyurethane foam having average ...

PURPOSE:To provide a width adding method of superb fusion strength without water drop or dust remaining on non-welded portion of butt-welding section by specifying lapping widths of an electrode roller of a high-frequency welding machine and the end of synthetic resin film. CONSTITUTION:In a method of adding width of synthetic resin film by using a high-frequency welding machine and setting the wi...

PURPOSE:To enhance productivity, retionalize process, reduce manufacturing cost and improve safety and sanitation of working environment by bonding base constituting components to each other with hot melt adhesive only. CONSTITUTION:In manufacture of sun visor base constituting with framework and cushion material or framework and cushion material as base constituting components, base components ar...

PURPOSE:To manufacture a rubber coated fabric not influenced by hot water washing, finishing steam ironing, body pressing and the like by using dust powder of special properties in the dusting process of manufacture of rubber coated fabric for clothing. CONSTITUTION:As dust powder for rubber coated fabric, 50-100wt% of spherical plastic finely divided powder having 90 deg.C-350 deg.C flexibility p...

PURPOSE:To manufacture a rubber coated fabric not influenced by hot water washing, finishing steam ironing, body pressing and the like by using dust powder of special properties in the dusting process of manufacture of rubber coated fabric for clothing. CONSTITUTION:As dust powder for rubber coated fabric, 50-100wt% of ring- shaped and space network-shaped vinyl chloride resin finely divided powde...

The boiler is for heating liquids by flameless combustion of a fuel mixture in a radiant packing 12. A distributor 24 for the fuel mixture is slide-mounted centrally in the upper boiler end wall 6. Arranged in the middle part of the lower boiler end wall 4 there is a grating 28, which protrudes upwards into the combustion space and has through- openings 36 for the combustion gases, directed from t...

The invention refers to an anatomic absorbent which contrary to similar products exhibits dynamic and anatomic action, accompanying the movement of the body of the user and providing increased protection against leakage. The absorbent of the invention comprises an absorbent substrate (3) sandwiched between a permeable and an impermeable layer (1, 2) which are sealed to each other at least at the e...

The shielding device includes a movable shield (2) with a bore (5), coaxial with respect to the blast tube (1) of the detonation system, an annular bellows (3) and a fixed plate (4) with a bore (6). The bellows (3) and the bore (6) are arranged coaxially with the bore (5) in the shield (2). The bellows (3) is connected at its one end face to the shield (2) and at the other end face to the plate (4...

PURPOSE:To make a nozzle displacement caused by the warp of a pole screw smaller than the warp of the pole screw and thereby prevent deterioration of printing quality by shortening a distance from a reference guide member to a nozzle as compared to a distance between the reference guide member and the pole screw. CONSTITUTION:A reference guide member 8 is arranged in parallel with the rotational s...

There is provided a cross-flow diffusion column possessing improved properties for maritime use and for use at high gas velocities, this column comprising novel trays of the shelf type. The trays are provided with perforations for a downwardly flowing liquid phase and at least one opening for an upwardly flowing gas phase. Arranged on the upper surfaces of respective trays is a lattice structure c...

Optical systems for use with attachments for a conventional reflex motion picture camera to permit stereographic cinematography are disclosed. The optical systems include lens systems having four powered elements having negative, positive, negative, and positive focal lengths respectively. The lens systems are adapted to be used with the Bernier stereographic cinematography attachment system as mo...

The invention relates to a method of treating wastewater from closed manufacture of mechanical or chemi-mechanical cellulose pulp, which treatment is carried out in a hydrolysis and acid fermentation step and a methane fermentation step with subsequent sludge separation and recycling of separated sludge.