balance staff

American  

noun

Horology.

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

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Etymology

Origin of balance staff

First recorded in 1880–85

Example Sentences

The company acknowledged it was an "emotive topic" but said it had to balance staff and shareholder needs.

From BBC • Jan. 13, 2022

Next acknowledged it was an "emotive topic" but said it had to balance staff and shareholder needs.

From BBC • Jan. 13, 2022

The roller action is supposed to continue through thirty degrees of angular motion of the balance staff, and is embraced on the circle a between the radial line B k and B o.

From Watch and Clock Escapements A Complete Study in Theory and Practice of the Lever, Cylinder and Chronometer Escapements, Together with a Brief Account of the Origin and Evolution of the Escapement in Horology by Anonymous

New balance staff, two balance screws changed, hairspring trued and cleaned.

From Rules and Practice for Adjusting Watches by Kleinlein, Walter J.

The early escapements were all frictional escapements, i.e., the balance staff was never free from the influence of the train.

From Watch and Clock Escapements A Complete Study in Theory and Practice of the Lever, Cylinder and Chronometer Escapements, Together with a Brief Account of the Origin and Evolution of the Escapement in Horology by Anonymous