Abstract: A color cathode ray tube includes a shadow mask structure composed of a frame, a shadow mask attached to the frame and suspension springs attached to the frame, and studs embedded in a skirt portion of its panel portion. Each suspension spring is composed of a base member including a portion attached to the frame, a sloped portion extending from the portion toward the skirt portion, and a first joint portion extending axially from the sloped portion; and a spring member including a second joint portion fixed to the first joint portion, a resilient portion extending at an angle &thgr; from the second joint portion, and a stud-engaging portion extending from the resilient portion and formed with a hole engaged with one of the studs, where 0°≦&thgr;≦10°. A length L of the resilient portion satisfies 20 mm≦L≦an axial length of the frame.

Abstract: The invention provides a color cathode ray tube using a shadow mask capable of avoiding ruptures or cracks during press-working. The shadow mask has an apertured region having color selecting apertures, and an unapertured region which surrounds the apertured region. A skirt portion is bent from the unapertured region in the direction of the tube axis. The shadow mask has at least two inclined surfaces in a boundary portion between the unapertured region and the skirt portion.

Abstract: A color cathode ray tube includes a shadow mask structure composed of a frame, a shadow mask attached to the frame and suspension springs attached to the frame, and studs embedded in a skirt portion of its panel portion. Each suspension spring is composed of a base member including a portion attached to the frame, a sloped portion extending from the portion toward the skirt portion, and a first joint portion extending axially from the sloped portion; and a spring member including a second joint portion fixed to the first joint portion, a resilient portion extending at an angle &thgr; from the second joint portion, and a stud-engaging portion extending from the resilient portion and formed with a hole engaged with one of the studs, where 0°≦&thgr;≦10°. A length L of the resilient portion satisfies 20 mm≦L≦an axial length of the frame.

Abstract: The invention provides a color cathode ray tube using a shadow mask capable of avoiding ruptures or cracks during press-working. The shadow mask has an apertured region having color selecting apertures, and an unapertured region which surrounds the apertured region. A skirt portion is bent from the unapertured region in the direction of the tube axis. The shadow mask has at least two inclined surfaces in a boundary portion between the unapertured region and the skirt portion.

Abstract: Novel pyrimidine derivatives of the formula (I): ##STR1## wherein R1 is a C.sub.1 -C.sub.6 haloalkyl group, a C.sub.1 -C.sub.6 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group or the like, R2 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group or the like, and X is a carbonyl group or --C(R3)OH (wherein R3 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group or the like).

Abstract: A fluoropropylthiazoline represented by the formula (1), a herbicide containing it and intermediates for it.

Abstract: A novel 4,5-disubstituted pyrimidine derivative of the formula (I): ##STR1## wherein R1 is CF.sub.2 X (X is Cl or Br), R.sub.2 is a C.sub.1 -C.sub.8 alkyl group, a C.sub.3 -C.sub.8 cycloalkyl group, etc., R3 is a halogen atom, SH, NH.sub.2, etc., and R4 is a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.6 alkyl group, etc., is a herbicide having excellent activities.

Abstract: A mixture of a compound represented by the formula (1) and at least one compound selected from the group consisting of phenmedipham, ethofumesate, chloridazon, metamitron and triflusulfuron-methyl, which is safe for sugar beet and has excellent properties.

Abstract: In a method of producing a molten aluminum-killed steel for forming a thin steel sheet, molten steel tapped from a converter is decarburized to a predetermined carbon concentration by using a vacuum degasser, and Al is added to the molten steel in the vacuum degasser to deoxidize the molten steel. A material containing metallic Ca is then added to the molten steel to produce a Ca content of about 0.0005 to 0.005 wt %, and to satisfy [%Ca].times.[%S].ltoreq. about 2.times.1 0.sup.-5. Thereafter, degassing is performed on the molten steel.

Abstract: Disclosed are a herbicide and a plant growth regulator comprising a 2-arylaminopyrimidinone derivative represented by the formula (1): ##STR1## (wherein Q represents various kinds of aromatic ring or heterocyclic ring).This compound can be used safely to main crops and shows high herbicidal effect to many weeds with a low dosage, and also shows plant growth regulating effect.

Abstract: An assembly of a bolt, a washer, a nut and locking structure for locking the bolt against rotation after the bolt, washer and nut have locked together a pair of flat, plate-like members in frictional engagement with each other. Any tendency for the bolt to rotate in a reverse direction will be prevented by the locking means. The plate members will essentially be bonded together against movement relative to each other, thereby maintaining structural integrity of the assembly. In a first embodiment, the head of the bolt has a notch for receiving one end of split ring washer. The other end of the washer is in a notch in the nut. The nut and washer define a locking unit for preventing reverse rotation of the bolt after the head of the bolt has been moved into proximity with the washer and the washer has been moved into the notch of the nut. Other embodiments are disclosed.

Abstract: A reproducing circuit for use in a magnetic recording and reproducing apparatus having a recording circuit operable to record a video luminance signal in either a conventional recording mode or in a High-Band mode has a first automatic gain control circuit for holding a level of a reproduced FM signal at an input thereof constant, a recording mode determination circuit having an input connected to the first automatic gain control circuit and responsive to an output of the first automatic gain control circuit for determining which the first or second recording mode is used to record the FM signal under reproduction, a first equalizer circuit for equalizing the reproduced FM signal suitably for the first recording mode, a second equalizer circuit for equalizing the reproduced FM signal suitably for the second recording mode, a switch circuit for selecting an output of either the first equalizer circuit or the second equalizer circuit according to an output of the recording mode determination circuit, a second a

Abstract: A device for detecting a strain and foreign matters in a glass container is designed to amplify the electrical output obtained by bringing vertical scanning lines into intersection with the image of horizontally rotating strain polarized light. A polarizer and an analyzer are disposed in such a manner that their optical axes cross each other at right angles, and polarized light from the polarizer is projected upon a rotating glass container under inspection and is allowed to pass through the analyzer only when strain and/or foreign matter is found in the glass container. The resulting strain polarized light is projected upon a non-storage camera tube through a lens so as to vertically scan with a line through the center of an image of the glass container on the photoelectric surface of the tube at a speed proportional to the moving speed of the glass container to thereby bring the vertical scanning lines into intersection with the image of the horizontally rotating strain polarized light.