Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 298
HOROLOGICAL. 287 … 1165. THREE-TOOTHED ESCAPEDMENT for a pendulum. The pallets are madein a plate attached to a pendulum. The es-capement makes one rotation to every threebeats of the pendulum. 1166. MUDGE GRAVITY ESCAPEMENT.—The pallets A, B are on separate arbors, witharms extending down to the pendulum contactpins…
Mechanical movements
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