FIELD: mechanisms.
SUBSTANCE: clock mechanism (30), which includes module (36), in which first set (18) of wheels engaged with second set (32) of wheels is installed, which is pivotally turns on base (4) on which module is mounted. Mechanism includes module installation facility made up of cam (40), at least, most part of outer circuit (42) of which has shape of Archimedean spiral. Cam is configured so that provides possibility of adjusting distance between centres (L) between first and second sets of wheels during cam turning around centre of Archimedean spiral. Cam is preferably calibrated.
EFFECT: invention also relates to method of adjusting distance between centres of these two sets of wheels, using said cam for optimising efficiency of engagement of these two sets of wheels.
10 cl, 6 dwg
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