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  2. Rack rail - Wikipedia

    en.wikipedia.org/wiki/Rack_rail

    The height of rack rail is determined by the number of rack units required for mounting the equipment. The design of racks and rack rails is specified in ECIA - EIA/ECA-310. Each rack unit (U) is equivalent to 1 + 3 ⁄ 4 in (44 mm). Most rack rail is in sizes from 2 units high (3 + 1 ⁄ 2 in or 89 mm) to 54 units high (78 + 3 ⁄ 4 in or ...

  3. 19-inch rack - Wikipedia

    en.wikipedia.org/wiki/19-inch_rack

    There is little evidence that the dimensions of these early racks were standardized. Telephone equipment racks (1923) The 19-inch rack format with rack-units of 1.75 inches (44.45 mm) was established as a standard by AT&T around 1922 in order to reduce the space required for repeater and termination equipment in a telephone company central ...

  4. File:19 inch vs 10 inch rack dimensions.svg - Wikipedia

    en.wikipedia.org/wiki/File:19_inch_vs_10_inch...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  5. Accessibility of the Metropolitan Transportation Authority

    en.wikipedia.org/wiki/Accessibility_of_the...

    Similarly, the connecting Long Island Rail Road station of the same name is not ADA-compliant, nor is the LIRR station serving Belmont Park. The Aqueduct Racetrack subway station , serving the eponymous racetrack in South Ozone Park , was inaccessible until 2013, following a two-year renovation project at the behest of Resorts World Casino ...

  6. List of railroad truck parts - Wikipedia

    en.wikipedia.org/wiki/List_of_railroad_truck_parts

    An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.

  7. Americans with Disabilities Act of 1990 - Wikipedia

    en.wikipedia.org/wiki/Americans_with...

    Under Title III of the ADA, all new construction (construction, modification or alterations) after the effective date of the ADA (approximately July 1992) must be fully compliant with the Americans With Disabilities Act Accessibility Guidelines (ADAAG) [13] found in the Code of Federal Regulations at 28 C.F.R., Part 36, Appendix A.

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