Abstract:
A device for holding and rotating a cathode-ray tube upon a true axis during the rebuilding of the tube including self-aligning mandrel members driven by slack-free chains carrying a reinforced tube saddle, with automatic compensation for tube misalignment, and radial two-directional microadjustment tool-mounting means for renecking the tube and installation of a new electron gun.
Abstract:
In a method for devacuating a vacuum tube to atmospheric pressure, a pulsed beam of radiant energy, such as a laser beam, is directed upon an area of the glass neck portion of the tube that is opposite and closely spaced from a surface structure of the mount assembly in the tube, so that volatilized material that is swept into the tube condenses on and sticks to the surface structure.
Abstract:
A method of opening a vacuum vessel in a vacuum space where the vessel is to be opened without producing undesired elements into the vacuum space. The walls of the vessel must comprise two parts that are connected together by means of a closure member having a U-shaped cross-section. The closure member is constructed of two flat rings that are connected at their inner edge. The method step comprises rotating the parts of the wall in opposite directions until the joining of the edges fractures.