American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 64
ground and foundation of all other dials, andshows how naturally from it lines may bededuced for planes lying in other positions.The plane of this dial is parallel to theearths equator, and is universal; for linesdrawn thereon will show the apparent time ofday for any place in the world. To… … the hour figures ; divide the outer circle into24 exactly equal parts, making a point or dotat each division ; then draw lines from thecentre to each of the 24 points, and these willbe the true hour lines. For the stile, erect inthe centre a pin or wire perpendicular to thedial plane. You will…
Clocks and watches
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