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Related to deadbeat escapement: Anchor escapement
deadbeat escapement[′ded‚bēt ə′skāp·mənt]
A watch escapement without recoil, having arresting faces of the pallets described by a circular arc whose center is at the pivot point of the anchor; escape-wheel teeth are contoured to give impulses to these pallet faces, over which they slide without recoil.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.