Abstract: A traverse device for simultaneous winding of yam packages in a spinning machine, which device can suppress the flexural vibration generated in a long rod. The traverse device incorporates a number of yarn guides 5 attached to a long, reciprocally moving rod 13 that is connected to a cam box 12 and in which a number of packages P are formed simultaneously. In particular, this device has an arrangement of a damping material 15 inside the rod 13, which is formed from a hollow pipe, and rapidly attenuates the vibration generated in the rod by the mechanical shock occurring at both ends of a reciprocal movement thereof.

Abstract: An europium activated oxysulfide phosphor represented by the formulaLn.sub.2 O.sub.2 S:Eu,(Sm)wherein Ln is at least one element selected from the group consisting of yttrium, gadolinium, lanthanum, lutetium and scandium is colored into red by mixing therewith a proper amount of calcium salt solely or together with strontium salt, and firing the resulting mixture at a temperature within the range of 1000.degree. to 1500.degree. C. By the firing, a CaS:Eu,(Sm) phosphor or a (Ca,Sr)S:Eu,(Sm) phosphor having a red body color is produced in an external portion of the Ln.sub.2 O.sub.2 S:Eu,(Sm) phosphor particle. The red colored phosphor thus obtained is used as a red emitting phosphor of a high contrast cathode ray tube for color television.

Abstract: A radiographic intensifying screen having high radiographic image quality is composed of a support and a fluorescent layer formed on the support. The fluorescent layer contains a pigment coated phosphor in which pigment particles adhere to the surface of the phosphor and partly absorb the light emitted by the phosphor.