Which mechanism caused frequent clock stoppages in pendulum clocks before the invention of the Graham escapement?

💡 Explanation

Before the Graham escapement, anchor escapements had significant recoil, meaning that backlash occurred because the escape wheel pushed back against the pendulum after each swing, disrupting its motion. Therefore, pendulum swing disruptions resulted, rather than thermal expansion, static friction, or lubricant issues which require different environmental conditions.

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