Construct · 1 fields · 2 citations

fusee: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a standalone horology construct Nearest construct by meaning·not indexed
fusee1 CONSTRUCTFuseeDANIELS · TORQUE CONE

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Horology

A cone that evens out a mainspring's falling pull

A fusee is a spirally grooved cone linked to the mainspring barrel by a chain or gut line, used to cancel out the mainspring's uneven pull. When the spring is fully wound and strongest, the chain pulls on the cone's narrow end for little leverage; as the spring weakens, the chain works down to the wide end for more leverage, so the torque reaching the gear train stays nearly constant. Daniels's Watchmaking and De Carle's Practical clock repairing describe how the cone's profile is shaped to match the spring and how the chain and stopwork are fitted. The referent is a mechanical torque-equalising device between a mainspring and a timekeeper's train.[1][2]

Unit
The constancy of torque delivered to the train across the wind
Recovery means
Not applicable
Measured by
Judged by how flat the output torque stays from full wind to run-down, set by the cone profile matched to the spring

Next

Run it through the Collider, or take the citations with you.

See how fusee sits against neighbouring constructs in the Collider, or export every reference on this page in one click.

Open in ColliderExport BibTeXReport this entry

Nearby constructs

remontoire1 fields · 1 citationsanchor · a standalone horology constructbarrel1 fields · 1 citationsanchor · a standalone construct

References

  1. Daniels, G. (2011). Watchmaking (Updated ed.). Philip Wilson Publishers. ISBN 9780856677045
  2. De Carle, D. (1987). Practical clock repairing (3rd ed.). N.A.G. Press. ISBN 9780719800009

Cited on this page?

Confirm your construct, or correct us.

If your work is cited behind one of these entries, you know better than we do whether we captured the meaning right. Confirm it, suggest an edit, or dispute it, and your name goes on the entry as an author who has checked it, linked to your ORCID.

Claim your construct