cooper
noun
a person who makes or repairs casks, barrels, etc.
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Immediately on the right, as they entered through the gates, there was a large barn, in which two men were coopering wine vats.
From He Knew He Was Right by Anthony Trollope