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" AC in d and e; then take the distance ed in your compasses, and setting one foot on the brass pin at the beginning of the chords on your scale, observe how many degrees the other foot reaches to, which will be 4° 15 "
The Practical Miner's Guide: Treatise on Mine Engineering, Comprisinga Set ... - Σελίδα 66
των John Budge - 1858 - 191 σελίδες
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An Introduction to the Theory and Practice of Plane and Spherical ...

Thomas Keith - 1810 - 420 σελίδες
...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...

The complete measurer: or, The whole art of measuring, containing the ...

Thomas Keith, William Hawney - 1817
...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...

Hawney's Complete Measurer: Or, The Whole Art of Measuring. Being a Plain ...

William Hawney - 1820 - 312 σελίδες
...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,...

An Introduction to the Theory and Practice of Plain and Spherical ...

Thomas Keith - 1826 - 442 σελίδες
...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...

An introduction to the theory ... of plane and spherical trigonometry ...

Thomas Keith - 1839
...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...

The Practical Miner's Guide: Comprising a Set of Trigonometrical Tables ...

John Budge - 1845 - 218 σελίδες
...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...feet, on an angle of 4° 15' west of south. EXAMPLE 2. Given the following course of traverse dialling, viz.: Required the distance and bearing of the...

The Practical Miner's Guide: Comprising a Set of Trigonometrical Tables ...

John Budge - 1854 - 218 σελίδες
...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...feet, on an angle of 4° 15' west of south. EXAMPLE 2. Given the following coarse of traverse dialling, viz. : Required the distance and bearing of the...

The Mining Magazine: Devoted to Mines, Mining Operations ..., Τόμος 9

1857
...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...Given the following course of traverse dialling, viz. : aj oj y •£ « ft In. fath. ft. in. = Z 180 0' S. of E. 36 0 or 6 0 0 = Z 360 15 S.of E. 44 4 or...

The practical miner's guide: a treatise on mine engineering

John Budge - 1860
...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...Given the following course of traverse dialling, viz.: ft. in. fath. ft. in. 162° = /18° O'S. ofE. 36 0 or 6 143°J= /36o 15 S.of E. 44 4 or 7 16°i = /73°...




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