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Balance staff

a pivoted axle or shaft on which the balance is mounted.
Historical Examples

It will be seen the impulse roller is staked flat against the hub E of the balance staff.
Watch and Clock Escapements Anonymous

There are many points worthy of consideration in the making of a balance staff that are too often neglected.
A Treatise on Staff Making and Pivoting Eugene E. Hall

We have already discussed how to locate and plant the center of the balance staff.
Watch and Clock Escapements Anonymous

The small circle at A represents the center of the pallet staff, and the one at B the center of the balance staff.
Watch and Clock Escapements Anonymous

There is no jeweling in the escapement or on the other end of the balance staff.
The Auburndale Watch Company Edwin A. Battison

Our advice is to set both stones in places corresponding to the axis of the balance staff, and the escape-wheel mobiles.
Watch and Clock Escapements Anonymous

In these frictional escapements the balance staff locked the train while the balance performed its arc of vibration.
Watch and Clock Escapements Anonymous

Five jewels are found in most instances, two cap jewels and two hole jewels for the balance staff and a jeweled impulse pin.
The Auburndale Watch Company Edwin A. Battison

Potance or PotenceA vertical or hang down bracket, supporting the lower end of the balance staff in full-plate watches.
Time Telling through the Ages Harry Chase Brearley

There are five jewels, four to support the balance staff and an impulse jewel.
The Auburndale Watch Company Edwin A. Battison


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