Reply To: Graham escapement

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Bob Tascione
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Hi David,
You must have been posting at the same time as I was a few minutes ago.
Yes when in doubt about the angle it’s pretty simple to check it using the half anchor radius/tangent method. Will need to determine the original lift angle first though. Not always 2 deg. as often believed.
Not a bad idea knowing exactly what the angle was originally in case someone in the past changed it.
In most cases just picking up the angle under high magnification by bringing it up against the flat surface of the wheel will get you dead on.

Bob TascioneReply To: Graham escapement