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:

    “Even in harmonious families there is this double life: the group life, which is the one we can observe in our neighbour’s household, and, underneath, another—secret and passionate and intense—which is the real life that stamps the faces and gives character to the voices of our friends. Always in his mind each member of these social units is escaping, running away, trying to break the net which circumstances and his own affections have woven about him.”
    —Willa Cather (1873–1947)

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