Hello from south of France!
Please read this comment like an English exercise, more than a technical
A fusee (from the French word fuseau = spindle/distaff) is a mechanical
device for antique horology.
[ It's actually fuse'e, but the simple 7-bit e-mail used to transmit
[ the Digest won't work with the accented French characters. -- Robbie
To regulate the strength of the spring barrel on the axis of the first
gear (XVIeme / XVIIIeme century), somebody created this "spindle" barrel
in which the diameter increases with the strength at the opposite of the
spring barrel. Both are linked mostly with a chain, or sometimes with a
rope. The first gear is placed on the fusee shaft.
Of course, we meet the fusee drive on only early spring-driven movements,
as the first clocks and watches, and the first music boxes, automatons
from Jacquet-Droz or Maillardet, and the Vienna cabinet organ. In any
case, they came before the mid-XIX century.
If somebody needs more information, I can send photos or try to have an
English lesson with a clock maker.
Thanks to all for this daily MM world news.
Philippe Crasse / Le Ludion
[ Thanks to Philippe Crasse and everyone else who wrote about this
[ subject. Some authors said (in effect), "Don't print my letter if
[ others write ...," but I think that every letter has something
[ special and informative, so I'm printing all of them. ;) -- Robbie