 | Thomas Keith - Navigation - 1810 - 478 pages
...compasses and centre D describe an arc ef, cutting DB and DC in e zndf. Then take the distance i ef'm your compasses, and setting one foot on the brass...observe how many .- degrees the other foot reaches to, and that will be the number of degrees contained in the arc ef, or angle CDB. If the extent ef reach... | |
 | Thomas Keith - 1817 - 306 pages
...lines which contain the angle in o and n; take the distance on in your compasses, and setting one foot at the beginning of the chords on your scale, observe how many degrees the other foot reaches to, and that will be the number of degrees contained in the arc on, or angle n A B. If the extent on reach... | |
 | William Hawney - Geometry - 1820 - 336 pages
...lines which contain the angle in o and n-; take the distance on in your compasses, and setting one foot at the beginning of the chords on your scale, observe how many decrees the other foot reaches to, and that will be the" number of degrees contained in the arch on,... | |
 | Thomas Keith - Navigation - 1826 - 504 pages
...compasses and centre D describe an arc ef, cutting DB and DC in e ana f. Then take the distance ef in your compasses, and setting one foot on the brass pin at the beginning of the с chords on your scale, observe how many degrees the other foot reaches to, and that will be the number... | |
 | Thomas Keith - 1839 - 498 pages
...your compasses and centre D describe an arc ef, cutting DB and DC in e andf. Then take the distance ef in your compasses, and setting one foot on the brass...observe how many degrees the other foot reaches to, and that will be the number of degrees contained in the arc ef, or angle CDB. If the extent ef reach... | |
 | John Budge - 1845 - 248 pages
...28 10•05018 7•55697 x 4 5 10 = 23 0•04485 Perpendicular or diff. of latitude, AB 196 3•51605 THEN — BY CONSTRUCTION. Draw two lines at right...15' west of south. EXAMPLE 2. Given the following course of traverse dialling, viz. : Required the distance and bearing of the extreme points A C. OPERATION.... | |
 | John Budge - Mining engineering - 1845 - 250 pages
...foot in the right angle B, point off the distance BA for the perpendicular. Again take 14 feet, 5J inches from the same scale, and apply it to the other...15' west of south. EXAMPLE 2. Given the following course of traverse dialling, viz.: Required the distance and bearing of the extreme points A C. OPERATION.... | |
 | Mineral industries - 1857 - 578 pages
...compasses and centre A, describe an arc ed cutting AB and AC in d and e ; then take the distance edin your compasses, and setting one foot on the brass...feet, on an angle of 4° 15' west of south. EXAMPLE II. Given the following course of traverse dialling, viz. : aj oj y •£ « ft In. fath. ft. in. =... | |
 | John Budge - Mine surveying - 1858 - 224 pages
...draw the hypothenuse to join A 0, which by the same scale will be found to measure 197 feet. 5 66 FOE THE ANGLE. With the chord of 60° in your compasses...feet, on an angle of 4° 15' west of south. EXAMPLE II. Given the following course of traverse dialling, viz. : •I fa ft. in. fath. ft. in. 0.S. ofE.... | |
 | John Budge - 1860 - 214 pages
...compasses and centre A, describe an arc ed cutting AB and AC in d and e; then take the distance e din your compasses, and setting one foot on the brass...feet, on an angle of 4° 15' west of south. EXAMPLE II. Given the following course of traverse dialling, viz.: ft. in. fath. ft. in. 162° = /18° O'S.... | |
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Again take 14 feet, 5£ inches from the same scale, and apply it to the other line BC for the base ; draw the hypothenuse to join AC, which by the same scale will be found to measure 197 feet. FOR THE ANGLE. With the chord of 60° in your compasses and... 