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:

    “On the death of a friend, we should consider that the fates through confidence have devolved on us the task of a double living, that we have henceforth to fulfill the promise of our friend’s life also, in our own, to the world.”
    —Henry David Thoreau (1817–1862)

    “Strange goings on! Jones did it slowly, deliberately, in the bathroom, with a knife, at midnight. What he did was butter a piece of toast. We are too familiar with the language of action to notice at first an anomaly: the ‘it’ of ‘Jones did it slowly, deliberately,...’ seems to refer to some entity, presumably an action, that is then characterized in a number of ways.”
    —Donald Davidson (b. 1917)