The complete measurer; or, The whole art of measuring .. (1789)
Hawney, William · London : Rivington · leaf 338
. I. Of Gauging, 321 L Problem IX.51? gauge a Copper, ET ABCD be a fmall Copper to be gauged. Take a fmall Cord of Packthread, make one Endfad at A, and exrend the other to the oppofitc Side ofthe Copper at B, where make it fall, or caufe femePerfcn to hold it very llr.iit; then fet one End of… … In like manner, fet the End of the Rule upon theTop of the Crown at d, and take the neareil Diilancsto the Thread, as dg, which fuppofe 42 Inches: Ihisfubtrafted from ^C, 47, the Remainder 5 is the Al-titude of the Cruu n. To find CD, the Diameter of the Bottom of theCrown. Meafure AB, the Diameter…
Measurement · Geometry
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