Tidens naturlre fig. Tidens naturlre af Poul la Cour Fig Cylindergang Bogen findes digitalt da Tidens Naturlre Diagram of cylinder escapement an escapement used in pocketwatches from the th to the th century from Tidens naturlre Nature of time by Poul la Cour Ill An escapement is linkage in mechanical watch that gives the timekeeping