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Any typos are a result of direct translation of the French.
Your guess is a s good as mine.
The duration of a synodical moon revolution is 29 days 12 hours 44 minutes and
2,8 seconds.
( synodical Revolution: interval of time ranging between two returns of one
planet to the same position compared to the Sun and the Earth. )
In the mechanism above, it is 29 days and 12 hours since the star carries the 2
moons and makes a turn in 59 days; what will give us a difference in 44 minutes
2 seconds 9/10, per month.
Another construction of mechanism of moon phase.
Synodical time of revolution:
29 J 12 H 44' 2,8' '
Time of revolution of mechanism 135:
29 J 12 H 45'
The entraineuse wheel of day of the month (reference 12h) engraine with the
intermediate gear of the days which it will involve star of 7 normal plus a star
of 7 additional.
On the latter a wheel of 16 teeth is driven out which goes engrainer with a
reference which suits him engrainer with star of phases.
We will thus have for this mechanism 135, one day in advance every 122 years and
46 days.
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