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- The escape wheel is all in one plane
- At A the escape wheel tooth is just
- entering the cylinder giving a clockwise
- impulse to balance. At B the impulse
- is finished and the tooth point rides
- on the inside of the cylinder and a
- slight counter-clockwise impulse is
- given. At D the tooth has escaped and
- a succeeding tooth will fall on, and
- ride on, the outside of the cylinder.