Abstract: An apparatus for washing the window glass of a vehicle comprising an intermediate container having an insulated construction and an electric heater which is connected to both a main tank for storing unheated washing fluid and an outlet from which the heated washing fluid is sprayed onto the glass. When the vehicle is turned on, the heater is turned on as well. Thus, with the vehicle in operation, the washing fluid is continually heated to a required temperature and held in the insulated intermediate container. As a result, it is possible to spray a required quantity of heated washing fluid at any time without excessive loading strain on the vehicle's battery and without excessive power consumption.

Abstract: A process for producing an aqueous copolymer dispersion is disclosed, which comprises emulsion polymerizing 100 parts by weight of a vinyl monomer mixture comprising (A) from 60 to 99.8% by weight of an acrylic ester of an aliphatic saturated alcohol having from 4 to 8 carbon atoms, (B) from 0.2 to 10% by weight of a monomer selected from the group consisting of an .alpha.,.beta.-unsaturated carboxylic acid, an .alpha.,.beta.-unsaturated carboxylic acid anhydride, a 2-hydroxyalkyl acrylate, a 2-hydroxyalkyl methacrylate, acrylamide, methacrylamide, methylolacrylamide, and methylolmethacrylamide, and (C) up to 30% by weight of a vinyl monomer other than the monomers (A) and (B) in the presence of from 0.01 to 10 parts by weight of a compound having an allyl hydrogen atom, with a total amount of the monomers (A), (B) and (C) being 100% by weight.

Abstract: A process for emulsion-polymerizing unsaturated monomer(s) is disclosed. When a hydrazine derivative having at least two hydrazine residues per molecule is added to the polymer dispersion obtained by said emulsion polymerization process, a polymer dispersion composition capable of forming a film which is excellent in blocking resistance, adhesiveness to an alkyd resin film, water-resistant adhesiveness to an alkyd resin film and water-resistant anti-whitening can be obtained.

Abstract: This invention relates to a improved method for the production of methacrylic acid by the steps of subjecting isobutylene and/or tertiory hutanol to catalytic vapor-phase oxidation with molecular oxygen in a first reactor, then supplying the resultant gax mixture to a second reactor, a rodlike or plate like insert set being placed in the empty space of gas inlet part of the tube of said second reactor.

Abstract: In an automatic sheet reversing apparatus having a convey/reversing section with a plurality of conveyor belts, a stacking/moving section with a stopper for stopping a leading end of a reversed sheet, and a feed section, the stopper is located below the conveyor belts. The upper portion of the stopper is located above the lower surface of the conveyor belt.

Abstract: A process for separation of methacrylic acid from a methacrylic acid-containing, gaseous reaction mixture obtained by subjecting methacrolein or a compound which can afford methacrolein under reaction conditions and molecular oxygen to gas phase reaction in the presence of a catalyst for oxidation under the coexistence of an inert gas for dilution which comprises (a) cooling the gaseous reaction mixture from a reactor wherein the gas phase reaction has been effected to separate into condensable components including methacrylic acid, acetic acid and water vapor as a condensed liquor and non-condensable components including methacrolein as a non-condensed gaseous mixture, (b) eliminating contaminating methacrolein from the condensed liquor and (c) contacting the resulting condensed liquor with an organic solvent to extract methacrylic acid, followed by separation into an organic solvent solution including methacrylic acid and an aqueous solution as waste water, characterized in that (1) the inert gas for diluti

Abstract: A paper feeding system for a copying apparatus has an auxiliary paper feeding unit which feeds paper to a photocopying member over a longer path than that of a primary paper feeding unit. The paper feeding system is provided with a drawing-out roller for feeding paper from the auxiliary unit to a stand-by position which is provided with a pair of auxiliary paper feeding rollers, for feeding paper from the stand-by position into the copying apparatus, and a detector for detecting paper at the stand-by position. When no paper is detected at the stand-by position, a signal is provided to the drawing-out roller to feed another paper from the auxiliary unit to the stand-by position. The stand-by position is selected so that the length of the paper feeding path from the stand-by position to the photocopying member is about equal to the path from the primary paper feeding unit.

Abstract: A process for preparing an acrylic or methacrylic acid ester comprising esterifying the acrylic or methacrylic acid with an alcohol in a water-insoluble and non-reactive organic solvent in the presence of an acid catalyst, the volume ratio of the organic solvent phase to an aqueous solution phase of the acid catalyst being as small as 0.1 to 1.0, whereby a reactor is allowed to be small-sized and a conversion of the esterification is kept high. The acrylic or methacrylic acid ester is useful as a starting material of an acrylic resin or acrylic resin coating, an adhesive or the like.

Abstract: An optical recording apparatus for recording digital signals controls the pulse length of the recorded signals by delaying either the positive-going edges or the negative-going edges of the digital signals. The edges are delayed by either a logical AND or a logical OR operation between an original digital signal and a delayed signal or between an original digital signal and an output signal from a monostable multivibrator which has been triggered by an edge of the original digital signal.

Abstract: A mirror device for an electrophotographic copying machine including a mirror support, in which base portions of a pair of support members are to both ends of an elongated rod member extended in the direction of width of the optical system. Locating planes capable of fixing plural mirrors for use in a moving optical system with a predetermined angle between them are formed on said base portions. Said predetermined angle is 90 degrees.

Abstract: In an electrophotographic copying apparatus of the type using a slit exposure optical system, two carriages carrying a light source and the means for directing an image toward a projection lens are driven relatively to one another through a wire sheave device. The impact energy of said carriages at travel end is absorbed not only by a compressible spring positioned between them, but also by the stretching of the wire which moves them relatively to one another.

Abstract: A front extended portion, a pair of facing extending segments, and a rear extended portion mounted on the extending segments, which compose a coil separator, are integrally molded. Saddle-type horizontal coil is inserted in a rear extended portion through an opening between the pair of facing extending segments. In this state the horizontal coil are fixed to the rear extended portion of the coil separator by means of spacers.

Abstract: A process for purifying crude acrylic acid characterized in that high-purity purified acrylic acid containing little or no low boiling aldehydes is obtained by rectifying a crude acrylic acid consisting essentially of acrylic acid and containing low boiling substances such as acetaldehyde, acrolein, water and acetic acid and/or high boiling substances such as maleic acid, phenol, benzaldehyde and acrylic acid dimer, thereby removing said low boiling substances and then high boiling ones, and then stripping trace amounts of remaining low boiling aldehydes with an inert gas such as nitrogen or air at a liquid to gas molar ratio of 2 to 20.

Abstract: A copying apparatus having a power transmission means in which arranged between the plurality of driven means and the driving system is a power transmission control mechanism. Said power transmission control system is capable of reducing and absorbing the vibrations generated through the driving system and stably supplying the power to the plurality of driven means. Said power transmission control mechanism comprises a flange connected to said plurality of driven means, a flange connected to said driving system and an elastic member inserted beween said two flanges.

Abstract: An angle-modulated signal transmission system comprises first and second filters for filtering signal components from first and second modulation signals supplied thereto. The filters eliminate a certain frequency band which tends to cause interference distortion in transmitted and demodulated signals due to crosstalk produced between first and second angle-modulated signal transmission paths. A mixer mixes the output signals of the first and second filters, with a certain mixing ratio. First and second adders add the signal components of a certain frequency band of the first and second modulation signals, thus mixed and processed by the mixer and the signal components of a frequency band other than the certain band of the first and second modulation signals. First and second angle modulators modulate carriers responsive to the resulting output signals of the first and second adders and send the output angle-modulated signals thereof respectively to the transmission paths.