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:
“... the next war will be a war in which people not armies will suffer, and our boasted, hard-earned civilization will do us no good. Cannot the women rise to this great opportunity and work now, and not have the double horror, if another war comes, of losing their loved ones, and knowing that they lifted no finger when they might have worked hard?”
—Eleanor Roosevelt (1884–1962)
“The bugle-call to arms again sounded in my war-trained ear, the bayonets gleamed, the sabres clashed, and the Prussian helmets and the eagles of France stood face to face on the borders of the Rhine.... I remembered our own armies, my own war-stricken country and its dead, its widows and orphans, and it nerved me to action for which the physical strength had long ceased to exist, and on the borrowed force of love and memory, I strove with might and main.”
—Clara Barton (1821–1912)