Abstract: A rectangular rear substrate which constitutes an envelope of an image display device is fitted with a reinforcing frame which reinforces the envelope. The reinforcing frame has a pair of first frame portions individually extending substantially parallel to long sides of the rear substrate and a pair of second frame portions extending substantially parallel to short sides of the rear substrate and connecting the first frame portions. Each of the second frame portions meets a relationship ?H/H=13 to 33%, where H is a length of each long side of the rear substrate and ?H is a distance between each short side of the rear substrate and each of the second frame portions.

Abstract: A shadow mask including a perforated portion that has a desired curved surface shape is obtained by pressing a flat mask having electron beam apertures. The press-molded perforated portion of the shadow mask is compressed in its thickness direction in a manner such that it is sandwiched between a first compression mold, having a convex surface that faces a concave surface of the perforated portion in which smaller holes of the electron beam apertures open and a plurality of projections on the convex surface, and a second compression mold, having a smooth concave surface that faces the convex surface of the perforated portion in which larger holes of the electron beam apertures open. In doing this, the perforated portion is locally compressed by means of the projections of the first compression mold, whereby a plurality of recesses are formed on the concave surface side of the perforated portion.

Abstract: A synthetic lubricating oil comprises an ester derived from (a) a monohydric alcohol having 4 to 18 carbon atoms which has a branched alcohol content of not less than 50 mol % and/or a neopentylpolyol having not more than 30 carbon atoms, (b) a hydroxycarboxylic acid condensate having an average degree of polymerization of not less than 1.2, and (c) a monocarboxylic acid having 4 to 18 carbon atoms which has a branched carboxylic acid content of not less than 50 mol %.

Abstract: Disclosed is a process for producing a carboxylic acid chloride by reacting phosgene with a carboxylic acid or an anhydride thereof, which comprises effecting the reaction in the presence of a homopolymer or copolymer of a monomer represented by formula (I) or (II) below, a copolymer of the monomers represented by formulae (I) and (II) below, or a copolymer of at least one monomer selected from the group sensisting of the monomers represented by formulae (I) and (II) below with another monomer copolymerizable therewith:CH.sub.2 .dbd.CHNR.sup.1 COR.sup.2 (I)CH.sub.2 .dbd.CR.sup.3 CONR.sup.4 R.sup.5 (II).In these formulae R.sup.1, R.sup.2, and R.sup.4 each represents an alkyl group containing from 1 to 3 carbon atoms, or an alkylene group containing from 3 to 5 carbon atoms provided that R.sup.1 with R.sup.2, and R.sup.4 with R.sup.5 may each combine to form a ring structure through >N--CO-- or >N-- in the molecule; R.sup.3 and R.sup.

Abstract: The invention relates to self-emulsifying sizing agents which are able to have long shelf stability and easily formable emulsifiable liquid when the agents are mixed with water, and which are suitable for treating paper. These sizing agents comprise of copolymers of particular polyoxyalkylene alkenyl ethers and maleic anhydride. Further, these sizing agents comprise of the above copolymers and particular alkenylsuccinic anhydrides or particular ketene dimers.

Abstract: A driver holder seat comprising a seat cushion, a seat back and side support members each pivoted on one side of that portion of the seat where the seat cushion and back are crossed each other, and provided with protection portions swelled from the sides of the seat cushion and back to hold the driver's upper and lower halves.

Abstract: An auxiliary seat assembly is proposed for use in the cab of automobiles or the similar vehicles; for effective utilization of the cab inside space, the seat cushion and seat back can be housed as folded in a pocket formed in the rear or lateral body panel of the cab.

Abstract: A method for welding by a magnetically driven arc, which comprises placing two objects of welding in butt formation with a small gap between the end edges thereof to form a welding line; parallelly connecting a first electric circuit comprising the two objects of welding and a cable arranged on the surface side of the two objects of welding and a second electric circuit comprising the two objects of welding and another cable arranged on the back side of the two objects of welding to a welding power source; flowing a welding current through the first and second electric circuits to produce an arc in the small gap; moving the arc along the welding line under the effect of an electromagnetic force in the direction of the welding line, the electromagnetic force being produced by the magnetic flux of magnetizing coils provided near the end edges of the two objects of welding and welding current flowing through the arc; and changing the amount of welding current flowing through the first and second electric circuit

Abstract: An apparatus to control the air flow in an automobile comprises a box which is provided beneath a seat and has openings respectively formed in the upper wall and the front wall thereof, a fan which is mounted to the rear wall of the box and of which the rotation can be reversed, a switching plate which is provided in the box in such a way as to selectively close the opening formed in the upper wall and the opening formed in the front wall, and a means to drive the switching plate so as to selectively open either one of said openings in synchronism with the switching of the rotation of the fan, thereby the air is forcibly upwardly passed through the seat or the hot air from a heater or the cold air from a cooler provided in front of the seat is forcibly sent rearwardly through said box.

Abstract: A flexible belt is fixed at its one end to one side of the vehicle seat and has at its other end a tongue member. An elongate rigid member is pivotally and rotatably fixed at its lower end to the other side of the vehicle seat and has at its upper end a buckle which releasably engages the tongue member.