A Practical Treatise on the Science of Land and Engineering Surveying, Leveling, Estimating Quantities, &cE. & F.N. Spon, 1885 - 346 σελίδες |
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acres adjustment base line calculated centre line chain lines chord circle circumference circumferentor clinometer co-sine column commence compass cross sections cube yards curve cutting decimals describe the arc diameter Diff difference divided division divisor draw the line embankment equal Example feet fence field-book figures fixed flag fore sight frustrum given number ground half height horizontal inches inclosure instrument intersection land length line A B logarithm mark measure method minutes multiply needle number of degrees object offsets parallel parallelogram perpendicular Plate 26 plotted poles Problem proof line protractor quantity quotient radius railway reduce regular polygon right angles road roods Rule scale screw secant sector shown sine slopes spirit level square links square root staff station straight edge subtract surface survey surveyor TABLE take the angle tangent telescope theodolite tie line trapezium vernier vertical vulgar fraction whole width
Δημοφιλή αποσπάσματα
Σελίδα 368 - CONTENTS : A complete Explanation of the London Practice. General Instructions. Order of Taking Off. Modes of Measurement of the various Trades. Use and Waste. Ventilation and Warming. Credits, with various Examples of Treatment. Abbreviations. Squaring the Dimensions.
Σελίδα 104 - 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.
Σελίδα 33 - When a straight line standing on another straight line, makes the adjacent angles equal to one another, each of the angles is called a, right angle ; and the straight line which stands on the other is called a perpendicular to it. 11. An obtuse angle is that which is greater than a right angle. 12. An acute angle is that which is less than a right angle. 13. A term or boundary is the extremity of any thing.
Σελίδα 367 - A Descriptive Treatise on Mathematical Drawing Instruments: their construction, uses, qualities, selection, preservation, and suggestions for improvements, with hints upon Drawing and Colouring.
Σελίδα 327 - Plan shall be added of any Building, Yard, Courtyard, or Land within the curtilage of any Building, or of any Ground cultivated as a Garden...
Σελίδα 142 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc.
Σελίδα 140 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees...
Σελίδα 365 - Practical Geometry, Perspective, and Engineering Drawing; a Course of Descriptive Geometry adapted to the Requirements of the Engineering Draughtsman, including the determination of cast shadows and Isometric Projection, each chapter being followed by numerous examples; to which are added rules for Shading...
Σελίδα 328 - All places where for a distance of thirty feet and upwards there will be a less space than nine feet six inches between the outside of the footpath on either side of the street or road and the nearest rail of the tramway...
Σελίδα 68 - ... 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.