American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 65
seasoned hard wood board ofany size, from 6 inches to a foot in diameter,exactly square, and paste on one surface asheet of drawing paper; then from one cornerdraw a quarter of a circle, as large as theboard will admit of, the limb (or are) dividedinto 90 equal parts or degrees. To one ofthe… … By applying the edge of your quadrant to thestile, and raising it till the thread of yourquadrant cuts the degree of latitude of yourplace, then the top of the stile is parallel tothe earths axis, and the plane of your dial isparallel to the plane of the equinoctial circlein the heavens. Still you…
Clocks and watches
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