- pinwheel escapement
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a clock escapement in which two pallets, usually of unequal length, alternately engage and release pins set on the escape wheel perpendicular to its plane of rotation.[1880-85]
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Universalium. 2010.
pinwheel escapement
Look at other dictionaries:
pinwheel escapement — a clock escapement in which two pallets, usually of unequal length, alternately engage and release pins set on the escape wheel perpendicular to its plane of rotation. [1880 85] … Useful english dictionary
pinwheel — /ˈpɪnwil/ (say pinweel) noun 1. a small Catherine wheel. 2. Machinery a wheel with pins, usually on the periphery as cogs. 3. Horology such a wheel, its pins projecting at right angles to the face, used in an escapement. Also, pin wheel …
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