A Practical Treatise on the Science of Land and Engineering Surveying, Levelling, Estimating Quantities, &eE. & F. N. Spon, 1863 |
Im Buch
Ergebnisse 1-5 von 68
Seite v
... ground Field - book . 82 into a given number of parts Offsets and staff 83 To divide a triangular piece of ground Principal lines , measuring off 84 Surveyors ' duties 85 To lay out the same Surveying by the chain only ib . in the ...
... ground Field - book . 82 into a given number of parts Offsets and staff 83 To divide a triangular piece of ground Principal lines , measuring off 84 Surveyors ' duties 85 To lay out the same Surveying by the chain only ib . in the ...
Seite vii
... ground ib . To find the content of a cutting in sloping ground To find the content when the ground is sloping longitudinally and trans- versely . Another example To find the content from a longitudinal section · The form of book for ...
... ground ib . To find the content of a cutting in sloping ground To find the content when the ground is sloping longitudinally and trans- versely . Another example To find the content from a longitudinal section · The form of book for ...
Seite 76
... ground , it is recommended to plot all the principal lines from a well- known accurate survey , and make only one of these lines a little curved , it will at once show the consequences that will occur to all the rest of the survey ...
... ground , it is recommended to plot all the principal lines from a well- known accurate survey , and make only one of these lines a little curved , it will at once show the consequences that will occur to all the rest of the survey ...
Seite 77
Henry S. Merrett. When the ground is hilly or thickly timbered , and no distant object visible , the best method of proceeding then is to plant the theodolite on rising ground about midway , so that , if pos- sible , both ends of the ...
Henry S. Merrett. When the ground is hilly or thickly timbered , and no distant object visible , the best method of proceeding then is to plant the theodolite on rising ground about midway , so that , if pos- sible , both ends of the ...
Seite 79
... ground is favourable , an angle can be better plotted by a measured line than by the protractor . It is for this reason - the multiplicity of angles required by instrument surveying , and the time in taking them — that chain surveying ...
... ground is favourable , an angle can be better plotted by a measured line than by the protractor . It is for this reason - the multiplicity of angles required by instrument surveying , and the time in taking them — that chain surveying ...
Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
66 feet acres adjustment base line calculated centre chain lines chord circle circumference circumferentor co-sine column commence compass cross sections cube yards curve cuttings and embankments datum line decimals describe the arc diameter Diff difference distance Ditto divided division draw the line equal fence field-book fifth column figure fixed flag fore sights frustrum given ground half width height horizontal inches inclosure instrument intersecting land length line A B logarithm manner mark measure method minutes multiply needle number of degrees offsets opposite parallel parallelogram perpendicular Plate 28 plotted poles Problem proof line protractor quantity quotient radius reduced level right angled triangle roads Rule scale screw secant segment shown side A B sine slopes solid content spirit level square links station subtract surface survey surveyor TABLE take the angle tangent points telescope theodolite tie line trapezium vernier vulgar fractions whole
Beliebte Passagen
Seite 108 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Seite 70 - To get, then, the quantity of shelled corn in a crib of corn in the ear, measure the length, breadth and height of the crib, inside of the rail; multiply the length by the breadth and the product by the height; then divide the product by two, and you have the number of bushels of shelled corn in the crib.
Seite 29 - Every circumference of a. circle, whether the circle be large or small, is supposed to be divided into 360 equal parts called degrees. Each degree is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.
Seite 60 - PROBLEM V. To find the area of any regular polygon. RULE. Multiply the sum of its sides by a perpendicular drawn from its centre to one of its sides, and take half the product for the area. Or, multiply the square of the side of a polygon (from three to twelve, sides) 'by the numbers in the fourth column of the table for polygons, opposite the number of sides required, and the product will be the area nearly.
Seite 20 - Divide the given number into periods of two figures each, by setting a point over the place of units, another over the place of hundreds, and so on over every second figure, both to the left hand in integers, and to the right hand in decimals. Find the greatest square in the first period on the left hand, and set its root'on the right hand of the given number, after the manner of a quotient figure in Division.
Seite 72 - Cone or Pyramid. Rule: Multiply the circumference of the base by the slant height and half the product is the slant surface; if the surface of the entire figure is required, add the.
Seite 61 - As 7 is to 22, so is the diameter to the circumference; or, as 22 is to 7, so is the circumference to the diameter.
Seite 63 - ... is double that of another, contains four times the area of the other. 4. — The area of a circle is equal to the area of a triangle whose base is equal to the circumference, and perpendicular equal to the radius. 5. — The area of a circle is equal to the rectangle of its radius, and a right line equal to half its circumference. 6. — The area of a circle is to the square of the diameter as .7854 to 1 ; or, multiply half the circumference by half the diameter, and the product will be the area.
Seite 4 - ... and are those which are to be found, at present, in most of the common tables on this subject. The distinguishing mark of this system of logarithms is, that the index or logarithm of 10 is 1 ; that of 100 is 2 ; that of 1000 is 3 ; &c. And, in decimals, the logarithm of •! is — 1 ; that of -01 is — 2 ; that of '001 is — 3, &c.