Brocot Suspension
The method of suspending a pendulum which is in use on nearly all mantel clocks of modern make, by means of which they may be regulated from the front of the dial by means of a key.
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.
The method of suspending a pendulum which is in use on nearly all mantel clocks of modern make, by means of which they may be regulated from the front of the dial by means of a key.