He sent his fireman back to the first car, with orders to uncouple the engine.
There was no need for the firemen to uncouple a line of hose from the reel.
She never relaxed her efforts to break the lovers' hold upon each other's arms, to unbind them, to uncouple them.
Tell Pedro the moment he hears the bell ring to uncouple the rear car.
Nothing was left to do save, as the Ambassador said, to "uncouple the dogs of war and let them run."
It will then uncouple, discharge one hopper, and go back on Mass-Time.
When they attempted to start that train, didn't they rush on and uncouple the cars?
I've got to get to the rear now, to uncouple a car we have to leave here.
As we near the bandits, uncouple the train, put on the brakes and stop the coaches.
I would give a signal for him to uncouple his engine and follow at full speed.