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Uranium glass used as lead-in seals in a vacuum capacitor. Glass-to-metal seals are a type of mechanical seal which joins glass and metal surfaces. They are very important elements in the construction of vacuum tubes, electric discharge tubes, incandescent light bulbs, glass-encapsulated semiconductor diodes, reed switches, glass windows in metal cases, and metal or ceramic packages of ...
While the standard double glazing is most widely used, triple glazing is not uncommon, and quadruple glazing is produced for cold environments such as Alaska or Scandinavia. [17] [18] Even quintuple and six-pane glazing (four or five cavities) is available - with mid-pane insulation factors equivalent to walls. [19] [20] [21]
A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. [1] It is a deformable material that is used to create a static seal and maintain that seal under various operating conditions in a mechanical assembly. [2]
Glazing, which derives from the Middle English for 'glass', is a part of a wall or window, made of glass. [ 1 ] [ 2 ] Glazing also describes the work done by a professional " glazier ". Glazing is also less commonly used to describe the insertion of ophthalmic lenses into an eyeglass frame.
Indeed, many gas turbine engine seals leak by design. [4] Labyrinth seals are also found on pistons, which use them to store oil and seal against high pressure during compression and power strokes, as well as on non-rotating shafts. In these applications, it is the long and difficult path and the formation of controlled fluid vortices plus some ...
Temperatures dipped below zero in parts of the Upper Midwest, and wind chill temperatures crashed to minus-20 degrees in some areas. The cold was sweeping east into the Mid-Atlantic and Northeast ...
Automobile windshield with "spider web" cracking typical of laminated safety glass. Laminated glass is a type of safety glass consisting of two or more layers of glass with one or more thin polymer interlayers between them which prevent the glass from breaking into large sharp pieces. [1]
Weatherstripping can be used on windows to seal them on all sides. Metal caps on the window top [5] and on sashes [2] redirect rain to drip off instead of infiltrating. Foam or gasket weatherstripping can be applied to the sides and sashes. [6]