Abstract: Disclosed is a toxicity test for chemical substances using the phylum Nematoda.According to this test, substances can be easily, rapidly, and inexpensively analyzed for their ability to induce mutations, promote tumor formation, act as teratogens, and cause abnormalities in development, metabolic function, and neuromuscular function.

Abstract: Mat-base assembly comprises a base including a sheet integrally formed of an elastomeric polymer, a picture frame-like projection formed on the periphery of the sheet and a mat-containing portion formed on the inner side of the peripheral projection, a dust-controlling mat contained in the mat-containing portion and a temporary anchoring mechanism for anchoring detachably the base and mat at a plurality of points on the peripheral edge of the sheet, wherein an anchoring element comprising engaging pieces implanted on a base fabric is fixed to the base, a fiber loop element engageable with the engaging pieces is sewn to the mat and the peripheral portion of the anchoring element is fusion-bonded to the base sheet while in the remaining portion of the anchoring element, the engaging pieces are left as they are.

Abstract: Disclosed is a connector for detachably and rotatably connecting one article to another article, which comprises an insert member to be attached to said one article and a receiving member having a space for insertion of said insert member, which is to be attached to said another member, wherein said insert member has an engaging annular peripheral portion having a void or hollow at the center thereof, a pair of spherical projections capable of elastic and reversional deformation are arranged in the insertion space of the receiving member to confront each other, and such a dimensional relation is established between the engaging annular peripheral portion and the spherical projections that the distance between apexes of the spherical projections is smaller than the thickness of the engaging annular peripheral portion and when said insert member is inserted into the receiving member, the engaging annular peripheral portion is rotatably gripped and supported by the peripheral parts of the paired spherical projec

Abstract: A system for selectively collecting washed articles with a washing device and conveyor to convey the articles therethrough, first and second detectors for detecting fabric faults and improperly washed articles, respectively, a device to roll the articles, a control device for controlling the washing treatment and a distributing device in response to signals generated by the detectors.

Abstract: Disclosed is a viscous liquid soap composition which comprises 8 to 11 parts by weight, per 100 parts by weight of the total composition, of a potassium oleate soap, and 3.5 to 5.5 parts by weight, per 100 parts by weight of the total composition, of a higher saturated fatty acid potassium soap, and then the total amount of said two soaps being 13.5 to 15.5 parts by weight per 100 parts by weight of the total composition, 5 to 7 parts by weight, per 100 parts by weight of the total composition, of a fatty acid monoethanolamide and 9 to 11 parts by weight, per 100 parts by weight of the total composition, of a polyhydric alcohol selected from the group consisting of propylene glycol and glycerin, with the remainder being water.This soap composition has such a viscosity-temperature correlation that the viscosity is highest at room temperature or at a temperature in close proximity to room temperature. Furthermore, in this soap composition, the viscosity is hardly changed with the lapse of time.

Abstract: Disclosed is a liquid aromatic deodorizing composition comprising a solution containing an isoparaffin type hydrocarbon having an initial boiling point higher than 150.degree. C. and a final boiling point lower than 300.degree. C. and a perfume at a weight ratio of from 95/5 to 50/50. This deodorizing composition has a uniform perfume-releasing property and is excellent in the durability of the aromatic deodorizing effect.

Abstract: Disclosed is a dust-controlling mat comprising tufted pile yarns containing fibers composed of a grafting product or polymer blend of polyvinyl alcohol and polyvinyl chloride and a dust adsorbing agent retained in the tufted pile yarns in an amount of 1 to 40% by weight based on the tufted piled yarns. This dust-controlling mat has an excellent dust-controlling property and a highly improved flame-proofing property in combination.

Abstract: An oil coater for mats which comprises a mat-supporting moving surface, a coating roller disposed above said mat-supporting moving surface and having on the periphery thereof a foam layer capable of being impregnated with an oiling composition, a press roller having a diameter smaller than the diameter of said coating roller and having on the periphery thereof a foam layer capable of being impregnated with an oiling composition, a first bearing mechanism which supports said press roller at a position upstream of said coating roller so that the top face of said press roller is substantially on the same horizontal plane with the top face of said coating roller and the degree of pressed contact between said coating roller and said press roller can be adjusted, a mat-feeding roller disposed below said mat-supporting moving surface, a second bearing mechanism which supports said feeding roller so that the axis of said feeding roller is substantially on the same vertical plane with the axis of said coating roller a

Abstract: A process for the preparation of cleaning materials comprising a cleaning fibrous substrate and an oiling composition adsorbed and impregnated in said fibrous substrate, said process comprising contacting a cleaning fibrous substrate composed of cellulose fibers or a combination of up to 30 % by weight, based on the total fibers, of synthetic fibers and the remainder of cellulose fibers with an oil-in-water emulsion of an oiling composition consisting substantially of (a) an oiling agent composed of mineral oil, a synthetic lubricating oil or a mixture thereof and having a viscosity of 8 to 100 cps as measured at 100.degree. F., (b) 0.5 to 35 % by weight, based on the total oiling composition, of an amphoteric surface active agent or a surface active agent having in the molecule both cationic active and non-ionic active groups and (c) 0.3 to 5.0 % by weight, based on the total oiling composition, of a benzene-carboxylic acid ester having a solubility parameter of from 8 to 12.

Abstract: A mop holder comprising a holding member for holding a mop formed of a synthetic resin having a high resistance to folding, a handle shaft and a linkage member for linking said holding member to the handle; wherein said holding member comprises a pair of shell members integrally formed of said synthetic resin and extending in the lengthwise direction, a hinge that links said pair of shell members so that they can be opened and closed, a pair of teeth trains to hold the mop, and a plurality of anchoring pins provided inside said shell members; the outer surfaces of said shell members are convex, said hinge is thinner than said shell members, and flexible and extending in the lengthwise direction; said pair of teeth trains are provided at the end of an extension plate bent inwardly from said shell members at the lower edge opposite to the hinge of said shell members and over the entire lengthwise direction thereof, so that said pair of teeth trains are disposed to face each other; said anchoring pins are arrang

Abstract: A handy mop comprising in combination (A) a mop holder including a grip, an upper holding plate and a pair of lower holding rods, all of which are integrally molded from a plastic material, each of said upper holding plate and lower holding rods extending in the horizontal longitudinal direction and having a closed end and an open end, said upper holding plate having a substantially horizontal flat lower face, said lower holding rods being disposed so that they are spaced vertically from said upper holding plate by a small distance and laterally from each other in parallel to each other by a small distance, to thereby form a horizontal mop passage between the upper holding plate and the lower holding rods and a vertical mop passage between the pair of the lower holding rods a pair of projections being disposed in the vicinity of the closed ends of the pair of the lower holding rods so that they narrow said vertical passage, and a mop-fixing engaging piece mounted on said mop holder at the position outside the

Abstract: A handy mop comprising a mop holder and a mop swab; said mop holder being composed of an integrally molded foamed product of a synthetic resin or an elastomer having independent cells inside thereof and a non-permeable continuous skin layer on the outer surface; said mop holder having a grip extending in the lengthwise direction at the central part thereof and a pair of mop holding parts having an arcuate tip and a horse-shoe-shaped bottom at both edges in the lengthwise direction integrally with said grip; said mop holder having resiliency and flexibility sufficient to deflect a pair of mop holding parts inwardly and downwardly; said mop swab being composed of an oval base cloth, a number of mop cords fastened to the lower surface of said base cloth and impregnated with a dusting oil composition, and a pair of pockets provided at the upper surface and at both ends in the lengthwise direction of said base cloth; a pair of said holding parts of said mop holder being inserted into the pockets of said mop swab t

Abstract: A mop holder comprising, in combination, a frame assembly comprising a longitudinal sheet metal frame, a pair of metallic wire frames and clamp members for connecting said sheet metal frame with said metallic wire frames, each of said metallic wire frames having a longitudinal outer leg, a pair of longitudinal inner legs connected to said outer leg through cornered ends respectively, and a pair of transverse legs connected to said inner legs respectively, said outer leg being outwardly convexed and elongated beyond said sheet metal frame, said metallic wire frames being arranged symmetrically with respect to a horizontal, longitudinal axis of said sheet metal frame so that the pair of inner legs of the first metallic wire frame and the pair of inner legs of the second metallic wire frame face each other with a small distance therebetween, and said clamp members being formed by curling edges of said sheet metal frame around the transverse legs of the metallic wire frames; and a pair of spaced standards extendi

Abstract: A mop for dusting use having and an excellent washing resistance employing a special thick cotton folded yarn as mop-head piles, the folded yarn but having a loose twist just within a specific range of twist number calculated from the formulas exhibited in the instant specification and are mercerized under the specific conditions to be contracted over 10 to 30% of the original yarn length. The dimensional and configurational stabilization and fixation of the twisted form of folded yarn are the intended aim of the mercerizing treatment, which realize the retainment of the twisted form, pliability and free mobility of individual pile in mop-head, even though the mop is subjected to severe washing treatment repeatedly.