Double Action

Double action may refer to:

  • Double-action, a system in firearms where the trigger both cocks and releases the hammer
  • Double-acting cylinder, a system in steam and internal combustion engines
  • Simple expansion, a system in steam engines and their accessories where a piston has the ability to both push and pull a connecting rod

Famous quotes containing the words double and/or action:

    “You spotted snakes with double tongue,
    Thorny hedgehogs, be not seen.
    Newts and blindworms, do no wrong,
    Come not near our Fairy Queen.”
    —William Shakespeare (1564–1616)

    “It is most pleasant to commit a just action which is disagreeable to someone whom one does not like.”
    —Victor Hugo (1802–1885)