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:
“Each in their double Eden closed
They fail to see the gardener there
Has planted Error....”
—Philip Larkin (1922–1986)
“The curse of me & my nation is that we always think things can be bettered by immediate action of some sort, any sort rather than no sort.”
—Ezra Pound (1885–1972)