Follower
Where two wheels are toothed together the one that imparts the power is known as the driver, and the one receiving the power is called the follower.
How to true a balance, repair a chipped dial, temper a spring or test a stone — the working bench-book of the American watch trade, arranged A to Z.
Where two wheels are toothed together the one that imparts the power is known as the driver, and the one receiving the power is called the follower.