What are 'retainers'?

Discussion in 'The Real Thing- North America' started by ddavidv, Jan 16, 2006.

  1. ddavidv

    ddavidv Member

    I'm reading a terrific book of employee stories from working on the railroad during the transition era. A lot of the brakemen and firemen talk about setting 'retainers' on the train while in motion. I'm guessing this has something to do with brakes, but I'm not at all clear on what exactly it is or how they are used. Can anyone educate me? :confused:
  2. jim currie

    jim currie Active Member

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