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  2. Lennox International - Wikipedia

    en.wikipedia.org/wiki/Lennox_International

    Lennox International Inc. is an American provider of climate control products for the heating, ventilation, and air conditioning (HVAC) and refrigeration markets. [1] Based in Richardson, Texas, the company is 9.8% owned by John W. Norris, III, a descendant of DW Norris, who acquired the company in 1904.

  3. Armstrong World Industries - Wikipedia

    en.wikipedia.org/wiki/Armstrong_World_Industries

    In 2011, Armstrong's net sales were $2.86 billion, with operating income of $239.2 million. [17] Armstrong Cabinets was sold by Armstrong World Industries to American Industrial Partners on October 31, 2012. Armstrong spun off its flooring business into a new company, Armstrong Flooring (NYSE: AFI) on April 1, 2016.

  4. Annual fuel utilization efficiency - Wikipedia

    en.wikipedia.org/wiki/Annual_fuel_utilization...

    The annual fuel utilization efficiency (AFUE; pronounced 'A'-'Few' or 'A'-'F'-'U'-'E') is a thermal efficiency measure of space-heating furnaces and boilers.The AFUE differs from the true 'thermal efficiency' in that it is not a steady-state, peak measure of conversion efficiency, but instead attempts to represent the actual, season-long, average efficiency of that piece of equipment ...

  5. Pine Furnace, Armstrong County, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Pine_Furnace,_Armstrong...

    It was a hotblast, steam charcoal furnace, ten feet across the bosh-stack and thirty-three feet high. [2] It made its first pig-metal in July, 1846. [ 2 ] It used charcoal until 1863, when the height of the stack was increased to forty feet and the fixtures were improved; and then commenced making iron with coke in 1865. [ 2 ]

  6. Operating temperature - Wikipedia

    en.wikipedia.org/wiki/Operating_temperature

    An operating temperature is the allowable temperature range of the local ambient environment at which an electrical or mechanical device operates. The device will operate effectively within a specified temperature range which varies based on the device function and application context, and ranges from the minimum operating temperature to the maximum operating temperature (or peak operating ...

  7. Armstrong Whitworth - Wikipedia

    en.wikipedia.org/wiki/Armstrong_Whitworth

    The company was founded by William Armstrong in 1847, becoming Armstrong Mitchell and then Armstrong Whitworth through mergers. In 1927, it merged with Vickers Limited to form Vickers-Armstrongs , with its automobile and aircraft interests purchased by J D Siddeley .

  8. The manufacturer of the jet's ejection system used Tuesday's accident to brag about its reliability: "The pilot successfully ejected using the Martin-Baker US16E seat. This was the 10th successful ...

  9. William Armstrong, 1st Baron Armstrong - Wikipedia

    en.wikipedia.org/wiki/William_Armstrong,_1st...

    William Armstrong, 1st Baron Armstrong, CB FRS (26 November 1810 – 27 December 1900) was an English engineer and industrialist who founded the Armstrong Whitworth manufacturing concern on Tyneside. He was also an eminent scientist, inventor and philanthropist.

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