Abstract: An admixture for modifying the fluidity of a cementitious mixture comprises a cement-dispersing agent which is an aqueous solution of polymer, in which solution an oxyalkylene-based defoaming agent is dissolved or dispersed in particles of no greater that 20 .mu.M diameter. The polymer is preferably a polymer which comprises units derived from unsaturated carboxylic acid monomer and the polymer is preferably prepared in the presence of the defoaming agent. Particular addition copolymers give particularly good results. The admixture permits good control of the fluidity of cementitious compositions and has extended shelf life.

Abstract: A shrinkage-reducing dispersing agent for use in cementitious compositions such as concrete and mortar comprising a graft polymer which is a polycarboxylic acid or a salt thereof, having side chains derived from at least one species selected from (a) oligoalkyleneglycol and/or polyalcohol and (b) polyalkylene glycols or derivatives thereof.

Abstract: A generator set includes a permanent soundproof housing for housing a portable engine generator therein. The portable engine generator has wheels for moving the same and can be operated in the permanent soundproof housing. The portable engine generator can be taken out of the permanent soundproof housing by pulling the portable engine generator out of the permanent soundproof housing in a direction transverse to a direction of advance of the wheels, and thereafter moving the portable engine generator in the direction of advance of the wheels.

Abstract: An additive for cementitious compositions comprises at least one sulfated polysaccharide obtained by the sulfation of a polysaccharide, preferably under moderate conditions. The additive enhances the fluidity and workability of cementitious mixes, and gives higher final compressive strength.

Abstract: A magnetic head slider producing apparatus includes a rotary lapping member having a lapping surface, a work member having a surface, and an elastic member fastened to the surface of the work member. The elastic member has [adhesion properties] adhesive characteristics. Magnetic head sliders each have a back surface, and rail surfaces in which magnetic heads are embedded. The back surface of each of the magnetic head sliders is in contact with the elastic member, and the magnetic head sliders are adhesively held by the elastic member [due to the adhesion thereof]. The work member is positioned so that the rail surface of each of the magnetic head sliders comes into contact with the lapping surface of the rotary lapping member.

Abstract: An aqueous solution, for use as a cement dispersing agent, of a polymer salt, which is formed by reacting a polycarboxylic acid with a nitrogenous acrylic polymer.

Abstract: The present invention concerns a quick setting composition capable of obtaining satisfactory strength developability irrespective of the fluctuation of the ingredients in a metallurgical slag, excellent in the strength developability at cold temperature, easy for coagulation control and inexpensive as well, which contains a cement ingredient comprising portland cement and/or mixed cement, 2 to 50% by weight at the integral ratio of a quick setting agent prepared by adding 3 to 20% by weight of an alkali carbonate at an internal ratio to a mixture comprising 40 to 95% by weight of a finely powdery metallurgical slag and 5 to 60% by weight of II-type anhydrous gypsum, based on the cement ingredient, and 0.1 to 5% by weight of a coagulation controlling agent comprising an organic acid type coagulation retarder and an alkali sulfate and/or calcium salt based on the total weight of the cement ingredient and the quick setting ingredient.

Abstract: A fish feed additive is used which contains .beta.-carotene containing Dunaliella algae powder stabilized against oxidation and migration into the water. The fish feed is prepared by mixing 100 parts by weight of a Dunaliella algae powder with 15-50 parts by weight of a cyclodextrin while stirring. The final fish feed is obtained by blending 10 parts by weight of this additive with 200-500 parts by weight of a common fish feed. The fish feed additive is in the form of dry fine granules. The fish feed additive effectively promotes growth and delivers .beta.-carotene to the fish.

Abstract: A temperature measurement equipment in which the accuracy of temperature measurement is improved by smoothly connecting the characteristic curves measured by two sensors having different characteristics, and dividing the characteristic curve into a plurality of curves, in particular in the vicinity of 4 K., digital processing being performed with a set resolution for each of these divided regions.

Abstract: A PET bird feed additives in the form of fine granules obtained by mixing 100 parts by weight of a Dunaliella alga powder with 15 to 50 parts by weight of cyclodextrin under stirring and to 100 parts by weight of the mixed adsorbate thus obtained adding an antioxidant and a binder; a PET bird feed obtained by blending 5 to 15 parts by weight of the granules thus obtained with a common PET bird feed; and processes for producing them. In the PET bird feed additive of the present invention, the Dunaliella alga powder is in the form of a mixed adsorbate together with cyclodextrin and thus .beta.-carotene contained in the Dunaliella alga can be stably sustained and effectively utilized. Further, the offensive odor characteristic to the algae can be removed. Furthermore, the PET bird feed additive of the present invention, which is in the form of fine granules, can be easily blended with a common PET bird feed.

Abstract: A polymeric composition which reduces the loss of flowability of a cementitious composition comprises at least one polymer as a salt thereof having the form of a copolymer of(a) a maleic anhydride half-ester with a compound of the formula IRO(AO).sub.m H (I)where R is a C.sub.1-20 alkyl group, A is a C.sub.2-4 alkylene group and m is an integer from 2-16; and(b) a monomer having the formula IICH.sub.2 .dbd.CHCH.sub.2 -(OA).sub.n OR (II)where n is an integer from 1-90.In a preferred embodiment, there is present a polycarboxylate salt which is at least one polymer or copolymer comprising at least one of the monomers acrylic acid, methacrylic acid, maleic anhydride, maleic acid and maleic acid monoester, polymer and polycarboxylate salt being blended in the proportion of 0.1-10 parts of weight of polymer per part of polycarboxylate salt.Cementitious compositions such as concrete in which such polymeric compositions are included maintain their slump properties.

Abstract: A detection unit essentially consists of (I) a plurality of calorimetric detection elements for the conduction flow type calorimeter each consisting essentially of a plurality of thermopiles severally supported on heat sinks and (II) a heat insulating member interposed between the adjacent calorimetric detection elements. A calorimetric measuring member for a conduction flow type calorimeter comprises a pair of the detection units and a sample pipe fixed in place between the pair of detection units.

Abstract: This invention relates to a sterilization process for vacuum-packaged raw meat, comprising vacuum-packaging, ultraviolet sterilization and heat shrinkage in sequence.The present invention provides an apparatus comprising an ultraviolet sterilization apparatus and an apparatus for shrinking film packaging material as an embodiment; sterilization effect obtained by means of the apparatus is great and bacteria as well as mold are sterilized. The packaged product does not change color or smell so that it does not lose its value as merchandise. No deterioration about the product could be found.

Abstract: This invention provides a cement dispersant of a lignosulfonic acid graft copolymer, obtained by a redox free radical reaction of lignosulfonic acid or its salts with one or more acrylic or vinylic monomers containing functional groups, in an aqueous solution in the presence of a radical initiator, e.g, redox catalyst. The lignosulfonic acid graft copolymer has a molecular weight distribution of from 5.times.10.sup.2 to 5.times.10.sup.6.

Abstract: A tractor has a three-point link assembly comprising a top link and opposed lower links which are connected together by a connecting assembly at their ends toward a working implement. The connecting assembly comprises an upper connector and lower connectors removably in engagement with corresponding connectable portions of the implement. The PTO shaft of the tractor is connected to an input shaft of the implement by an extendable transmission shaft having a pair of tractor joint and implement joint at its opposite ends. The connecting assembly has a clutch for separably operatively connecting an externally splined portion of the implement input shaft to an internally splined portion of the implement joint. The clutch comprises a guide fixed to the connecting assembly and extending substantially longitudinally of the tractor, a tubular case provided in the guide movably axially thereof and an operating assembly for the case. The implement joint is inserted in the case.

Abstract: A new type of health food containing dried powder of Dunaliella algae is produced by means of vacuum-packing granulated materials including dried powder of said algae with use of plastic film which is both lighttight and gastight. The vacuum-packed food is very rich in .beta.-carotene.

Abstract: Dunaliella algae, which is rich in various kind of physiologically active ingredients, especially .beta.-carotene, can be utilized in the form of dried powder. Dried powder of Dunaliella algae is granulated together with other materials to make a granulation and the granulation is encapsulated in a hard capsule. Dried powder of Dunaliella algae is also suspended in an emulsifier along with other materials to form a suspension and the suspension is encapsulated in a soft capsule.

Abstract: Dunaliella algae, which is very rich in .beta.-carotene, can be utilized as an excellent nourishing diet supplement without extracting the .beta.-carotene from the cells of the algae and destroying the .beta.-carotene, in the form of a light impermeable tablet which consists of dried powder of the algae, cyclodextrin, an antioxidant such as vitamin C and vitamin E, a lubricant such as talc and ester of sucrose and fatty acid, a binder such as reducing maltose and starches and a coloring agent such as annato-, caramel-, paprika- or oleoresin-containing sugar solution.

Abstract: An ultraviolet sterilizing apparatus includes a sterilization chamber defining an enclosed space and having an entrance and an exit, a roller conveyor arranged between the entrance and the exit for conveying products to be sterilized through the interior of the sterilization chamber, and a plurality of sterilizing ultraviolet lamps arranged about the path along which the products are conveyed. The apparatus is characterized in that some of the ultraviolet lamps are situated below the conveyance path, each of these ultraviolet lamps being interposed between mutually adjacent ones of the rollers in the roller conveyor and arranged far enough below the conveyance plane of the roller conveyor so as not to contact the products being conveyed. This ultraviolet lamp arrangement makes it possible to uniformly sterilize products over their entire surface without requiring that the products be turned over on the conveyor.