(4) Chronometer or detent escapement This represents the most highly detached and exact escapement made. ... Unlocking is effected by the discharging pallet D, pressing against the end of a fine gold spring G which projects just beyond the ... The more or less steep outer edge formed by an inclined bed of rock which is of a more durable nature than the beds ... A small projection on the escutcheon plate engaging with a trigger on the operating handle holds the switch aquot;inaquot; when theanbsp;...
|Title||:||Hutchinson's technical & scientific encyclopaedia|
|Author||:||Charles Frederick Tweney, Ivan P. Shirshov|