Watch and Clock Escapements

Grossmann's prize-winning treatise on the detached lever escapement, with detailed diagrams of rack levers, Mudge's fork, and modern lever forms. Covers the action of pallets and rollers, banking, draw, and the geometry of escapement adjustment.

Moritz Grossmann

Wilkinson teaches the watch repairer how to read, test and correct the lever escapement. Each lesson covers a specific error, from the draw and impulse angles to the safety roller, with workshop tests for detecting and curing it.

T. J. Wilkinson

A concise geometric and mechanical analysis of the lever escapement, with full plates showing the trajectories of the pallets and the action of the safety roller. Aimed at watchmakers who want the underlying theory of their adjustments.

H. R. Playtner