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  2. List of pipeline accidents in the United States in the 1970s

    en.wikipedia.org/wiki/List_of_pipeline_accidents...

    December 1 – Construction workers punctured a 12-inch gas pipeline in Atlanta, Georgia, with an I-beam. No fire or explosion followed, but thousands of people were evacuated from nearby buildings. [156] December 10 – A 2-inch plastic gas main cracked and migrated under a paved parking area in Tempe, Arizona. The gas reached a building 35 ...

  3. Casing (borehole) - Wikipedia

    en.wikipedia.org/wiki/Casing_(borehole)

    Casing is a large diameter pipe that is assembled and inserted into a recently drilled section of a borehole. Similar to the bones of a spine protecting the spinal cord, casing is set inside the drilled borehole to protect and support the wellstream. The lower portion (and sometimes the entirety) is typically held in place with cement. [1]

  4. Colonial Auxiliary Forces Officers' Decoration - Wikipedia

    en.wikipedia.org/wiki/Colonial_Auxiliary_Forces...

    The decoration is an oval skeletal design and was struck in silver, with parts of the obverse in silver-gilt. The oval is 1 + 7 ⁄ 16 inches (37 millimetres) high and 1 + 1 ⁄ 4 inches (32 millimetres) wide and is suspended by a thin silver wire suspension bar which is attached to a small ring at the top on the reverse. [10]

  5. List of pipeline accidents in the United States in the 2020s

    en.wikipedia.org/wiki/List_of_pipeline_accidents...

    August 14 – 2020 Colonial Pipeline oil spill: A Colonial Pipeline mainline, a 40-inch pipeline, was discovered to be leaking in the Oehler Nature Preserve near Huntersville, North Carolina. Approximately 2 million gallons of gasoline were spilled. The leak was near a previously repaired area. [8] [9]

  6. Nominal Pipe Size - Wikipedia

    en.wikipedia.org/wiki/Nominal_Pipe_Size

    Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...

  7. American historic carpentry - Wikipedia

    en.wikipedia.org/wiki/American_historic_carpentry

    The beams are spaced 4 feet (1.2 m) to 18 feet (5.5 m) apart and the planks are 2 inches (5.1 cm) or more thick possibly with another layer of 1 inch (2.5 cm) on the top as the finished flooring could span these distances. The planks may be laid flat and tongue and grooved or splined together or laid on edge called a laminated floor. [24]