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Cable grommets. A cable grommet is a tube or ring through which an electrical cable passes. They are usually made of rubber or metal. [1]The grommet is usually inserted in holes in certain materials in order to protect, improve friction or seal cables passing through it, from a possible mechanical or chemical attack.
A grommet is a ring or edge strip inserted into a hole through thin material, typically a sheet of textile fabric, sheet metal or composite of carbon fiber, wood or honeycomb. Grommets are generally flared or collared on each side to keep them in place, and are often made of metal, plastic, or rubber. They may be used to prevent tearing or ...
The other end of a cable ends at the desk. The cable management needs at either end are different (see also: Structured cabling ) . Buildings and office furniture are often designed with cable management in mind; for instance, desks sometimes have holes to pass cables, and dropped ceilings , raised floors and in-floor cellular raceway systems ...
Cable glands and self-sealing grommets are usually designed for entering single or just a few cables. By utilising a gland plate, many cables with different diameters can be routed. Depending on the type, very high cable densities or ingress protection classes up to IP66/IP68 (according to IEC 60529) can be achieved.
Jean-François Oeben is sometimes credited with designing the original rolltop desk around 1760, [1] however his Bureau du Roi (completed by Jean Henri Riesener after Oeben's death) was a cylinder desk. The US Patent Office issued a patent for the first American-made rolltop desk to Abner Cutler of Buffalo, NY in 1882. [2]
A large fire consumed multiple buildings Friday morning on the former Virginia Intermont College campus in what one city official called "a tragedy for our city."
In general, a spacer is a solid material used to separate two parts in an assembly. Spacers can vary in size from microns to centimeters. They can be made of metal, plastic, glass, and other materials.
Before c. 1930, concentric connectors with three contacts were usually sufficient, but the upgrade of telephone sets to anti-sidetone circuitry in the 1930s required at least four conductors between a desk set and the subscriber set that contained the telephone hybrid and a ringer. For this purpose, Bell System engineers developed a cube-shaped ...
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