Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 841
3 f form of a complete wheel; but are composed of the cross-bar AB attached to the axis, and of the twocircular arms carried by its ends. Each of these circular arms is a compound liar of brass and steel,the brass being on the outside. As brass expands by heat much more than steel, the effect of a…
Mechanical engineering
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