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  2. Chain crew - Wikipedia

    en.wikipedia.org/wiki/Chain_crew

    The chain gang. In gridiron football, the chain crew (commonly known as the "chain gang") is a crew that manages signal poles on one of the sidelines.There are three primary signal poles: the "rear rod" that marks the beginning of the current set of downs, the "forward rod" that marks the line to gain, and the "box" that marks the line of scrimmage.

  3. Official (gridiron football) - Wikipedia

    en.wikipedia.org/wiki/Official_(gridiron_football)

    A pair of officials at a Maryland high school football game in September 2008. White knickers used to be worn by officials; black trousers are now standard.. For ease of recognition, officials are usually clad in a black-and-white vertically striped shirt and black trousers with a thin white stripe down the side (this was formerly white knickers with black/white striped stirrup stockings or ...

  4. Umpire (Australian rules football) - Wikipedia

    en.wikipedia.org/wiki/Umpire_(Australian_rules...

    An umpire is an official in the sport of Australian rules football who adjudicates the game according to the "Laws Of The Game", the official handbook of Australian Rules Football. Umpiring the game of AFL across all leagues (professional, amateur or juniors) has been subject to long history of abuse, which in more recent times the AFL has ...

  5. Glossary of North American railway terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_North_American...

    [1] [2] 10 wheeler (US) The 10-wheeler wheel arrangement A steam locomotive with a 4-6-0 wheel arrangement [3] 241 (US) Procession of a train past a stop signal with verbal permission from the dispatcher. [4] Derives from Rule 241, which is used to grant such permission under certain rule sets. [5] 14L, 14(l), or 19b

  6. Carlson, Márquez, Miller and Tichenor will be the umpire crew ...

    www.aol.com/news/carlson-m-rquez-miller-tichenor...

    Mark Carlson, Alfonso Márquez, Bill Miller and Todd Tichenor will be the umpire crew chiefs for the Division Series starting Friday. Carlson’s crew will work the NL series between Atlanta and ...

  7. It wasn’t so long ago that workers still hammered railroad ...

    www.aol.com/news/wasn-t-long-ago-workers...

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  8. North American railroad signaling - Wikipedia

    en.wikipedia.org/wiki/North_American_railroad...

    The RTC can also issue special permissions to trains via radio. To pass signals set at stop (Rule 564), reverse direction within a block (Rule 577) or enter the main line at a manual switch not equipped with a signal (Rule 568), the train crew must copy the RTC's instructions and repeat them back correctly before being allowed to proceed.

  9. Is college football ready to get out of the stone age with ...

    www.aol.com/sports/college-football-ready-stone...

    For no-huddle teams — most of them these days — quarterbacks will be charged with flashing hand signals to other offensive players. The same goes for a linebacker or safety on defense.