 | James Ferguson - 1764 - 322 pages
...each other as is equal to the intended thicknefs of the gnomon or ftile of the dial, and the fpace included between them will be the meridian or twelve o'clock line on the dial. Crofs this meridian at right angles with the fix o'clock line gb, and fetting one foot of your compafles... | |
 | James Ferguson - Astronomy - 1776 - 546 pages
...each other as is equal to the intended thickncfs of the gnomon or ftile of the dial, and the fpace included between them will be the meridian or twelve o'clock line on the dial. Oofs this meridian at right angles with the fix o'clock line g £, and fetting one foot of your compafTcs... | |
 | Encyclopaedia Perthensis - 1807 - 782 pages
...intended thicknefs of the gnomon or ftik of the dial, aud the fpace included • • • -• between' Between them will be the meridian or twelve o'clock line on the dial. Croft this meridian at right anglet with the lix o'clock line i t>, ami fett"V ; one foot of the compafies... | |
 | Edward Augustus Kendall - Encyclopedias and dictionaries - 1811 - 482 pages
...and the rest of the hours, to a horizontal plane, draw the parallel right lines ac and 6 d (fig. 3) upon that plane, as far from each other as is equal...meridian at right angles with the six o'clock line git, and setting one foot of your compasses in the intersection a, as a centre, describe the quadrant,... | |
 | George Adams - Astronomy - 1812 - 552 pages
...Jig. 5, upon that plane, as far from each other as is equal to the intended thickness of the gnomon of the dial, and the space included between them, will be the meridian, or twelve o'clock line upon the dial; cross this meridian at right angles, by the line gh, which will be the six o'clock line... | |
 | George Adams - Astronomy - 1812 - 586 pages
...jig. 5, upon that plane, as far from each other as is equal to the intended thickness of the g<iomon of the dial, and the space included between them, will be the meridian, OF twelve 'o'clock line upon the dial ; cross this meridian at right angles, by the line gh, which... | |
 | James Ferguson - Eclipses - 1823 - 406 pages
...transfer these, and the rest of the hours, to a Fig- !• horizontal plane, draw the parallel right lines ac and bd upon that plane, as far from each...meridian at right angles with the six o'clock line Jc h, and setting one foot of your compasses in the intersection a, as a centre, describe the quadrant... | |
 | Encyclopedias and dictionaries - 1823 - 896 pages
...rest of the hours, to a ,, horizontal plane, draw the parallel right lines а с ami d b. upon the plane, as far from each other as is equal to the intended...space included between them will be the meridian or twelve-o'clock line on the dial. Cross this meridian alright angles with the six -o'clock line g A,... | |
 | Thomas Curtis - Aeronautics - 1829 - 820 pages
...and the rest of the hours, to a horizontal plane, draw the parallel i%ht lines ac, and db, fig. 3, upon that plane, as far from each other as is equal...this meridian at right angles with the six o'clock tine, kh, and setting one foot of the compasses in the intersection a, as a centre, describe the quadrant... | |
 | Thomas Curtis (of Grove house sch, Islington) - 826 pages
...lines ac, and db, fig. 3, upon that plane, "far from each other as is equal to the intended wckness of the gnomon or stile of the dial, and the space included between them will be the mendian or twelve o'clock line on the dial. Cross "» meridian at right angles with the six o'clock... | |
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... upon that plane, as far from each other as is equal to the intended thickness of the gnomon or stile of the dial, and the space included between them will be the meridian or twelve o'clock line on the dial. Cross this meridian at right angles with... 