Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 836
The mode in which the parts of a watch are actually arranged is Bhown in ? x-:;~ l,;- representing their of a watch, from which one of the plates has b i fr< n above. Here a is the barrel, containing the mainspring coiled within it. By the elasticity of this, the barrel is made gradu-ally to…
Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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