PROCESS FOR THE DECARBURIZATION OF MOLTEN METAL of the Invention A computer implemented process for optimizing the decarburization of a predetermined mass of molten metal by controlling the amount of coolants, the charging time of coolants, the dilution ratio of injected oxygen to inert gas, the changing time of the dilution ratio and the amount of injected gases which includes: considering from a...

Disclosed are methods, utilizing electromagnetic levitation, for producing low density, porous metal structures and hollow metallic spheres, using particulate material as a starting point. As an initial step, a porous article of sufficient green strength to be substantially self-supporting is formed of a particulate material containing at least one electrically-conductive metal. The green porous a...

An absorbent floor cleaning and waxing composition is disclosed comprising shreds of a hydrophilic, open-celled, solids-loaded polyurethane foam having an aqueous wax emulsion releasably incorporated therein. The composition is effective to replace soiled coatings of floor wax with fresh floor wax.

The invention relates to stabilizer-containing reactive components for the production of polyurethane foams having little or no tendency towards core discoloration which are characterized by a stabilizing addition of monomeric and/or oligomeric derivatives of the diphenylamine series, including the phenothiazine series. The invention also relates to new stabilizers of the diphenylamine and/or phen...

An optically guided, unmanned, load transporting vehicle, such as a fork-lift truck, includes an electric camera, such as an industrial television camera, and a controller for controlling the automatic running apparatus of the vehicle. Two reflectors are disposed in front of the camera so that the camera receives light from remote and near visual fields. A guide belt laid on floor for guiding the ...

A watchdog timer for monitoring the operation of a computer monitors if the period of a writing signal (WT) generated by each execution of an instruction of a program is within the predetermined duration. The present watchdog timer comprises a register (2) for storing predetermined DATA upon receipt of the writing signal (WT), a counter (4) which is incremented by a clock pulse ( phi ), a comparat...

SKI BINDING A heel holder includes a base plate mountable on the ski, a sole holder supported for vertical and transverse horizontal movement relative to the base plate, a first locking mechanism for yieldably resisting upward movement of the sole holder away from a closed position adjacent the base plate, and a second locking mechanism which prevents transverse horizontal movement of the sole hol...

A motorcycle fork tree assembly includes a steering axle attached to a top tree piece and a bottom inner tree piece. The bottom inner tree piece is pivotally secured to a bottom intermediate tree piece which is adjustably positioned within a bottom outer tree piece. The fork tubes extend through the bottom outer tree piece and are attached to the top tree piece via plugs having offset bores positi...

The present invention relates to compositions for making sealing walls, dump linings and the like, especially barriers placed in the ground. The compositions contain expandable clay minerals, cement and fillers in aqueous suspension, as well as additives of alkali metal aluminates and alkoxy alkylsilanes. On the basis of these additives, the sealing action against water and pollutants is substanti...

The invention relates to an environmentally-compatible process for the batchwise or continuous removal of toxic heavy metals from an aqueous effluent such as power plant wastewater. It includes the steps of activation, treating and separation. In the first step, iron in particulate form is contacted with an oxygen-containing gas such as air and an aqueous medium such as the wastewater itself under...

Moisture-proof polypropylene film package materials for packaging unit cases in lots, especially for photographic roll film small cases, comprising: (a) a biaxially-stretched polypropylene film substrate having, (i) stretching of 2 to 15 times, (ii) the thermal contraction both in longitudinal and transverse directions of 2-8%, and (iii) the relative ratio of thermal contraction in both directions...

Polymeric blends comprising linear low density polyethylene (LLDPE) as the major constituent (60 percent or more), and polypropylene (PP) or ethylene-propylene copolymer having a high propylene content and ethylene-propylene-diene monomer rubber as minor constituents exhibit improved stiffness, tear and impact strength compared to blends of LLDPE and PP. The blends are suitable for use in films.

Process for the preparation of cement-asbestos manufactured articles, by means of preparatory operations comprising the preparation of an aqueous suspension of cement and asbestos fibres, the filtering and the optional dewatering of the obtained paste, and the formation of the manufactured article, characterized in that said suspension does not contain asbestos of the amosite type and that it is a...

A control system is provided for a combine or other vehicle having an engine for driving both the ground wheels of the vehicle and at least one auxiliary mechanism, such as the crop-processing mechanisms of a combine. The engine is coupled to the ground wheels through a hydrostatic transmission and the power takeoff for the auxiliary mechanism is located on the engine side of the transmission. A s...

MULTICOMPONENT CONCRETE SUPERPLASTICIZER A superplasticizer cement admixture for portland cement based compositions formed from a low molecular weight alkali metal polyacrylate in combination with an alkali metal or alkaline earth metal polynaphthalene sulfonate-formaldehyde or an alkali metal lignosulfonate or an alkaline earth metal lignosulfonate or mixtures thereof.