CPC G04B 15/08 (2013.01) [G04B 13/02 (2013.01); G04B 15/14 (2013.01)] | 15 Claims |
1. An escapement mechanism comprising:
a dual-forked lever having a pivot suitable for movement of the lever between a first pivot limit and a second pivot limit, and at least two rounded follower elements spaced from the pivot and spaced at a first predetermined distance from each other, with at least one follower element mounted on each fork of the lever and each follower element lacking a locking face, and
at least one escape wheel having an outer periphery defining at least a first plurality of cam elements, each cam element defining a leading cam surface suitable to slidably contact and drive the rounded follower elements, and each cam element lacks a locking surface where contact is made with the follower elements;
wherein the first plurality of cam elements slidably contacts and drives the at least one follower element on one of the two forks of the lever, and further including a second escape wheel, disposed coaxially with the first escape wheel, wherein the second escape wheel defines a second plurality of cam elements, each cam element of the second plurality of cam elements defining a leading cam surface suitable to slidably contact and drive the at least one rounded follower element on the other of the two forks, and each cam element lacks a locking surface where contact is made with the follower elements.
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