Abstract: In a recording medium reproducing apparatus, a storage means in which reproduction limit information is stored is a rewritable non-volatile memory, and the recording medium reproducing apparatus includes a control unit which reads reproduction limit information from the non-volatile memory and compares this reproduction limit information with reproduction limit information recorded on a recording medium. Then, the reproduction limit information can be set under the condition that the reproduction limit information has not yet been set in the non-volatile memory. Broadcasting format information is stored in the non-volatile memory, and the control unit reads the broadcasting format information from the non-volatile memory and performs control in accordance with the broadcasting format indicated by the broadcasting format information.

Abstract: An inside micrometer including an inside micrometer body (1) with a first spindle (11) screwed in an advanceable and retractable manner in an axial direction, to which anvil (30) having different length in increments of a predetermined dimension and an extending collar (40) interposed between the anvil (30) and the inside micrometer body (1) are selectively attached to adjust the measurement range, has an extending rod (50) selectively attached to the inside micrometer body (1) in an attachable and detachable manner and having a second spindle 58 which is advanced and retracted together with the first spindle (11), so that the length of the second spindle (58) is added to the measurement range extended from one of the anvils (30) as well as the length of the extending collar (40), thereby reducing the number of the anvils (30).

Abstract: An inside micrometer including an inside micrometer body (1) with a first spindle (11) screwed in an advanceable and retractable manner in an axial direction, to which anvil (30) having different length in increments of a predetermined dimension and an extending collar (40) interposed between the anvil (30) and the inside micrometer body (1) are selectively attached to adjust the measurement range, has an extending rod (50) selectively attached to the inside micrometer body (1) in an attachable and detachable manner and having a second spindle 58 which is advanced and retracted together with the first spindle (11), so that the length of the second spindle (58) is added to the measurement range extended from one of the anvils (30) as well as the length of the extending collar (40), thereby reducing the number of the anvils (30).

Abstract: A fiber composed of a polyester having at least a part of terminals blocked with the residue of at least one specific metal sulfonate compound, where the amount of the blocked terminals is 1.3 to 4.0 mol % based on the dicarboxylic acid component of the polyester and the alkali dissolution speed constant is 3.3.times.10.sup.-9 to 6.5.times.10.sup.-9 cm/sec. This polyester has a good dyeability with a cationic dye and is excellent in the heat resistance and alkali resistance. The polyester fiber can be spun at a high speed or super high speed and can be false-twisted at a high temperature.

Abstract: A process for preparing a high-molecular weight polyester comprising additionally polymerizing a polyester obtained from a dicarboxylic acid component composed mainly of an aromatic dicarboxylic acid and/or an ester-forming derivative thereof and a glycol component composed mainly of ethylene glycol and/or an ester-forming derivative thereof and having an intrinsic viscosity of at least 0.8, at a temperature above the melting point of the polyester and under a reduced pressure, in the presence of a compound (A) successively generating a substance which is gaseous under the polymerization conditions and does not substantially reduce the molecular weight of the polyester, to form a polyester having an intrinsic viscosity of at least 1.0.

Abstract: The present invention relates to a flywheel device comprised of a plurality of flywheel discs axially stacked one upon the other and interconnected by a plurality of tightening bolts. The flywheel discs act as a flywheel in their entirety and are connected to an intermediate shaft. The tightening bolts are passed through the periphery of the stacked up discs. According to the invention, an adjustment disc is introduced between the intermediate shaft and the stacked up discs and is subjected to a facing operation so that a connecting surface of the adjustment disc with the intermediate shaft compensates for any deviation caused by an accumulated dimensional error of the stacked up discs.

Abstract: A polyester composition with an excellent high-speed melt-spinning property, comprising(A) 100 parts by weight of a matrix polyester resin comprising at least 80 molar % of an ethylene terephthalate recurring unit, and(B) 0.2 to 7 parts by weight of a dispersoid dispersed in the matrix,the dispersoid being such that, when it is contained in a predetermined amount (w) in a typical matrix polyester resin consisting of a polyethylene terephthalate having an intrinsic viscosity of 0.640, the resultant exemplary polyester composition satisfies the relationship (I): ##EQU1## wherein: .gamma..sub.1 =shearing rate of 0.01 sec.sup.-1 ; .gamma..sub.2 =shearing rate of 5.0 sec.sup.-1 ; .eta..gamma..sub.1 (w)=melt viscosity (poise=1/10 N.multidot.sec.multidot.m.sup.-2) of the exemplary polyester composition at .gamma..sub.1 ; .eta..gamma..sub.1 (0)=melt viscosity of matrix polyester resin at .gamma..sub.1 ; .eta..gamma..sub.2 (w)=melt viscosity of the exemplary polyester composition at .gamma..sub.2 ; and .eta..gamma..

Abstract: The invention provides a novel antioxidant obtained from rosemary and suitable for preventing oxidation of various organic materials or, in particular, oleaginous foodstuffs. The antioxidant is prepared by extracting rosemary with a non-polar organic solvent and further extracting the thus extracted material with an aqueous alkaline solution having a pH of at least 10.5 as a weakly acidic fraction soluble in such a strongly alkaline solution. The extraction with the non-polar organic solvent is preferably preceded or followed by steam distillation in order to remove any spicy volatile materials undesirable when the antioxidant is added to foodstuffs or the like. Column chromatographic separation of the above obtained weakly acidic fraction into components gives a novel compound 7.beta.,11,12-trihydroxy-6,10-(epoxymethano)abieta-8,11,13-trien-20-one as the effective ingredient of the antioxidant prepared from rosemary. Characterization of the above novel compound is given.

Abstract: A process for preparing a polyester which comprises reacting a di-lower alkyl ester of a difunctional carboxylic acid at least 90 mole% of which consists of terephthalic acid with a polymethylene glycol containing 2 to 10 carbon atoms at least 90 mole% of which consists of ethylene glycol in the presence of an ester-interchange reaction catalyst to form an ester-interchange reaction product, and then polycondensing it in the presence of a polycondensation catalyst, wherein a substantially uniform solution in ethylene glycol of (A) 20 to 150 millimole%, based on said di-lower alkyl ester of the difunctional carboxylic acid, of calcium acetate and (B) 2 to 25 millimole%, based on said di-lower alkyl ester, of cobalt acetate is used as the ester-interchange reaction catalyst.

Abstract: Scale formation in a continuous ester-interchange reaction for the production of polyesters, is prevented by subjecting a dialkyl ester of a difunctional carboxylic acid at least 80 mole% of which consists of terephthalic acid and at least one glycol to a continuous ester-interchange reaction catalyst in the presence of a catalytic amount of an ester-interchange reaction catalyst composed of a manganese compound and a lithium compound, the amount of said ester-interchange reaction catalyst being the one which meets the following expressions (i) and (ii)(i) 0.015<X + Y<0.2(ii) 0.2.ltoreq. Y/(X+ Y) .ltoreq. 0.7wherein X is the amount in moles of said manganese compound based on said dialkyl ester, and Y is the amount in moles of said lithium compound based on said dialkyl ester.