A fire alarm system of the present invention is adapted to compute an approximation equation based on the detection data from a detector or detectors such about a smoke density, a temperature, a gas concentration, etc. and predictively determine a fire based on the approximation equation. The system including computing section for computing an approximation equation approximating a change in the p...

PURPOSE:To enhance the transparent feeling and depth feeling of a film by successively applying base coat, transparent clear coat, color clear coat and transparent clear coat to a film consisting of electrodeposition paint and intermediate paint according to a wet-on-wet system before baking. CONSTITUTION:A four-coat 2-bake (four-layer twice baking) system of base coat/transparent clear/color clea...

PURPOSE:To simplify construction and increase life by making a planetary roller prevent itself from skewing while preventing said planetary roller from moving in the direction of thrust through an output ring, in a reduction gear in which a rolling planetary mechanism is used. CONSTITUTION:A reduction gear consists of an input shaft 1 as a sun roller, more than one planetary roller 3 which is prov...

A centrifugal separation apparatus comprises a rotatable cylindrical member (136) including a side perforated wall and an opened bottom and a bottom lid member (138) including a central raised portion and a side wall inclined downwardly and outwardly. The bottom lid member (138) is moveable between an upper position in which said bottom lid member (138) is engaged by the lower end face of said cyl...

A sealed rechargeable nickel electrode containing electrochemical cell has a pasted negative electrode having paste layers adhered to a nonforaminous conductive substrate (40), which retards growth (swelling) of the nickel electrode on cycling. In particular in a sealed rechargeable electrochemical cell having a nickel positive electrode, a pasted negative counter electrode comprised of an electri...

A mattress cover (10) is adapted to conformingly fit over a mattress (50). The cover includes a non-elastic top panel (12) having a general shape similar to that of the top surface of the mattress, defining edges and corners. A plurality of side panels (14) are attached to the edges of the top panel, adjacent side panels being attached to each other at the corners of the top panel. The side panels...

In the manufacture of PVC cellular plastic, a liquid plastic mixture is admixed with fibres in an amount of at most 1 percent by weight fibres, preferably carbon fibres having a length of about 1 cm, which fibres are distributed in the expanded cellular plastic isotropically with respect to both position and alignment. The cellular plastic is effective to dampen electromagnetic radiation within th...

The invention relates to a method of monitoring the drilling of a borehole through an earth formation with a rotating drill bit fixed at the lower end of a drillstring. At least one physical quantity associated with the vibrations resulting from the interaction of the rotating drill bit with the earth formation is detected and an oscillatory signal is generated in response thereto. Filter coeffici...

Apparatus for producing superfine powder in spherical form with a diameter of about 5 to 30 microns in a laval nozzle system. The material to be powdered is melted in a crucible, and is then superheated after it emerges from the crucible.

PURPOSE:To obtain powder rubber soluble in organic solvents by a method in which a mixture of a rubber latex and a water-soluble high polymer with carboxyl groups is dropped to a higher amine salt aqueous solution under an acidiulated condition, a synthetic resin emulsion is added to the reaction system, and the mixture is orderly treated with a bad solvent for rubber and an alkali. CONSTITUTION:A...

PURPOSE:To uniformly disperse rubber compounding ingredients while preventing them from being spilt and obtain a uniform rubber compound without any cut film pieces left therein, by a method wherein rubber compounding ingredients are packed up by a film of trans-1,4-polyisoprene, and thereafter the ingredients are compounded and kneaded with a rubber. CONSTITUTION:The rubber compounding ingredient...

A method of manufacturing diorganopolysiloxane emulsions where the diorganopolysiloxane contains carboxylic acid functional groups is described. The method involves the emulsion co-polymerization of a non-carboxylic acid containing diorganopolysiloxane with either a diorganodialkoxysilane or diorganopolysiloxane which contains at least one unit of general formula in the presence of a surfac...