Five hundred and seven mechanical movements (1903)
Brown, Henry T. [from old catalog] · New York, Brown & Seward · leaf 81
ide is the best.One advantage of this kind of escapementis that if one of the pins is damaged it caneasily be replaced, whereas if a tooth isdamaged the whole wheel is ruined. 305. A single-pin pendulum escapement.The escape-wheel is a very small disk withsingle eccentric pin ; it makes half a… … 307
Mechanical movements
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