Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 837
is crutch is usually not fixed to the pen-dulum, since it is convenient to detach the latter, when the clock- is to bemot id from one place to another ; but it is so connected with it, that, as thej ndulum Bwings from side to side, the two ends of the crutch move upand down. The position of the… … F » WATCHMAKING. 821 A. F, the end B of the crutch would -ink betwci n the tei th of ■ heel, whilst the end C would The scape-wheel i< driven by it- pinion in the direction of th.- ambut it- nterruption by the alternate locking and disei I of it- teeth against the tch ; and as the moven idulurn,…
Mechanical engineering
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