Abstract: An apparatus for manufacturing a glass frame, comprises a mold having a rectangular frame-shaped storage recess in which both end portions of a plurality of strip-like glass plates and are stored such that they are overlapped, coil heaters which simultaneously heat and melt the end portions of the plurality of strip-like glass plates and stored in the storage recess of the mold, and a pressing unit which simultaneously presses the end portions of the plurality of strip-like glass plates and molten by the coil heaters such that the resultant has a thickness equal to that of the strip-like glass plates.

Abstract: An electron gun for emitting an electron beam to a phosphor screen and for scanning one of two scanning regions defined in the phosphor screen is arranged in two necks of a vacuum envelope. A mask body of a shadow mask has two effective areas, in which numerous electron beam passage apertures are bored, defined in association with the scanning regions, and has a boundary portion defined between the effective areas and opposed to the boundary between the scanning regions of the phosphor screen. An adjustment member used to adjust a q value at a plurality of points on the boundary portion is fixed to the inner surface of the boundary portion. After the q value is adjusted, the adjustment member is fixed to the mask frame.

Abstract: A cathode ray tube device which comprises an electromagnetic shielding casing, a cathode ray tube held in said casing, an elastic material provided between the casing and cathode ray tube in contact therewith, and a space or porous material formed in part of a region defined between the casing and elastic material, and wherein said space or porous material suppresses the axial shifting of the cathode ray tube resulting from the thermal expansion of the elastic material when it is highly heated.

Abstract: A cathode ray tube with a potted base is provided which comprises: a plurality of stem pins which extend through a stem mounted at an end of a neck and fixed to the stem; an insulating housing which is mounted on the stem and which is formed integrally with a base having holes for receiving the stem pins, most of the bottom of the housing comprising the base; terminals for connecting leads extending into the housing from the outside to the stem pins extending into the housing from below through the holes in the base; an insulating material which is filled in the housing and which fixes the stem pins, the leads and the terminals; and an insulating adhesive for adhering the stem to the bottom of the housing.