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" The scales, or lines graduated upon the faces of the instrument, and which are to be used as sectoral lines, proceed from the centre, and are, 1. Two scales of equal parts, one on each leg, marked LIN. or L. Each of these scales, from the great extensiveness... "
Geometrical and Graphical Essays: Containing a General Description of the ... - Σελίδα 41
των George Adams - 1813 - 534 σελίδες
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Encyclopædia Britannica: Or, A Dictionary of Arts ..., Τόμος 17,Μέρος 1

Colin Macfarquhar, George Gleig - 1797 - 442 σελίδες
...indrument, and which are to be ufed as feftoral lines, proceed from the centre ; and are, i . Two fcales of equal parts, one on each leg, marked LIN. or L. each of thefe fcales, from the great extenfivenefs of its ufe, is called the line of lines. 2. Two lines of...

The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1811 - 580 σελίδες
...of the instrument, and which are to be used as sectoral lines, proceed from the centre ; and arc, 1. Two scales of equal parts, one on each leg, marked LIN. or i.. Each of these scales, from the great extensiveness of its use, is called the line of' lines. 9....

The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1814 - 558 σελίδες
...of the instrument, and which are to be used as sectoral lines, proceed from the centre ; and are, 1. Two scales of equal parts, one on each leg, marked...extensiveness of its use, is called the line of lines. 4L. Two lines of chords, marked сно. or c. 3. Two lines of secants, marked SEC. or s. A line of...

Encyclopaedia Perthensis; or, Universal dictionary of Knowledge ..., Τόμος 20

Encyclopaedia Perthensis - 1816 - 746 σελίδες
...the inttrumcnt, and which are to be tifed aa iVdoral lines, proceed from the centre ; .and are, i. Two Scales of equal parts, one on each leg, marked LIN. or L. each of thefe fcales, from the line of lines reprefents 100, the divifions of the firft order, or thofe to...

The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1821 - 594 σελίδες
...proceed from the centre ; and are, 1. Two scales of equal parts, one on each leg, marked LIN. or i,. Each of these scales, from the great extensiveness...marked CHO. or c. 3. Two lines of secants, marked 8EC. or s. A line of polygons, marked POL. Upon the other face, the sectoral lines are, 1. Two lines...

Encyclopaedia Britannica; Or A Dictionary of Arts, Sciences, and ..., Τόμος 19

1823 - 936 σελίδες
...of the instrument, and which are to be used as sectoral lines, proceed from the centre ; and are, i, Two scales of equal parts, one on each leg, marked...these scales, from the great extensiveness of its ose, ¡s called the line of lines. 2. Two lines of chords marked сно. or c. 3. Two lines of secants...

The London encyclopaedia, or, Universal dictionary of ..., Μέρος 2,Τόμος 19

Thomas Curtis (of Grove house sch, Islington) - 420 σελίδες
...the instrument, and which are to be used as sectoral lines, proceed from the centre ; and are, 1 . Two scales of equal parts, one on each leg, marked LIN. or i .; each of these scales, from the great extensiveness of its use, is called the line of lines. 2....

The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1833 - 436 σελίδες
...of the instrument, and which are to be used as sectoral lines, proceed from the centre, and are, 1. Two scales of equal parts, one on each leg, marked...the line of lines. 2. Two lines of chords, marked cuo. or c. 3. Two lines of secants* marked SEC. or s. A line of polygons, marked POL. Upon the other...

The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson, James Ryan - 1839 - 452 σελίδες
...of the instrument, and which are to be used as sectoral lines, proceed from the centre, and are, 1. Two scales of equal parts, one on each leg, marked...lines of chords, marked CHo. or c. 3. Two lines of secaittf. marked SEC. or s. A line of polygont, marked P0L. Upon the other face the sectoral lines...

A Complete Epitome of Practical Navigation ...

John William Norie - 1852 - 838 σελίδες
...of the instrument, that is, once on each leg ; those on one face are, 1 . Two scales of equal parts, marked LIN. or L. ; each of these scales, from the great extensiveness of its use, is called the LINK OF LINES. 2. Two lines of chords, marked CHO. or C. 3. Two lines of secants marked SEC. or S....




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