Contrate Wheel
A crown wheel. A wheel whose teeth are set at right angles to its plane and used ordinarily as a gear wheel for transmitting power from one shaft to another, standing at right angles to it. The escape wheel of the verge escapement.
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.
A crown wheel. A wheel whose teeth are set at right angles to its plane and used ordinarily as a gear wheel for transmitting power from one shaft to another, standing at right angles to it. The escape wheel of the verge escapement.