The Civil Engineer's Pocket-book of Mensuration, Trigonometry, Surveying, Hydraulics ...J. Wiley & Sons, 1891 - 866 pages |
Table des matières
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Expressions et termes fréquents
abut axis beam body bottom breaking load bridge cast iron cen of grav center load center of gravity chord Circumf coeff Cosine Cotang cub ft cube cubic cubic foot diam diameter diff direction disch dist draw elastic limit entire equal feet flange foot force fric friction frustum ft per sec given greater half head horizontal iron joint lbs per sq length less leverage measure miles mult oblique parallel parallelogram parallelogram of forces perp piezometer pipe plane plate pounds pres pressure pull radius radius of gyration rafter Réau reqd reservoir resistance resultant right angles rivets rule screw shearing side Sine sliding slope sq ft sq inch strain strength struts surf surface Tang thickness tons triangle truss tube velocity vertical weight weir wrought iron
Fréquemment cités
Page 323 - One of these is the proposition that any two sides of a triangle are greater than the third side.
Page 310 - We thus arrive at the principle that, in any case, the rate of acceleration is directly proportional to the force and Inversely proportional to the mass.
Page 385 - British. 20 grains 1 scruple. 3 scruples 1 dram = 60 grains. 8 drams 1 ounce = 24 scruples = 480 grains. 12 ounces 1 pound = 96 drams — 288 scruples =» 5760 grains. In troy and apothecaries' weights, the grain, ounce and pound are the same.
Page 383 - States is, in theory, that of a pendulum vibrating seconds at the level of the sea, in the latitude of London, in a vacuum, with Fahrenheit's thermometer at 62°. The length of such a pendulum is supposed to be divided into 39.1393 equal parts called inches, and 36 of these inches were adopted as the standard yard of both countries.
Page 650 - Machine rock-drills bore much more rapidly than handdrills, and also more economically, provided the work is of sufficient magnitude to justify the preliminary outlay. They drill in any direction, and can often be used in boring holes so located that they could not be bored by hand. They are worked either by steam directly, or by air compressed by steam or water-power and stored in a tank called a receiver and thence led to the drills through iron pipes.
Page 312 - Relation between force and mass. The mass of a body is the quantity of matter which it contains.
Page viii - ... are equal. The boys may then go in to dinner, and probably puzzle their big lout of a brother who has just passed through college with high honors. They will not forget what they have learned ; for they learned it as play, without any ear-pulling, spanking, or keeping in. Let their bats and balls, their marbles, their swings...
Page 162 - Every point iu the surface of a sphere is equidistant from a certain point called the center. Any line passing entirely through a sphere, and through its center, is called its axis, or diameter.
Page ii - ... and their adjustments. Strength of Materials, Masonry, Principles of Wooden and Iron Roof and Bridge Trusses, Stone Bridges and Culverts, Trestles, Pillars, Suspension Bridges, Dams, Railroads, Turnouts, Turning Platforms, Water Stations, Cost of Earthwork, Foundations, Retaining Walls, etc. In addition to which the elucidation of certain important Principles of Construction is made in a more simple manner than heretofore. By JC Trautwine, CE 12mo, morocco flaps, gilt edges. 32nd thousand, revised...
Page 273 - ... canals and rivers in earth of tolerably uniform cross-section, slope, and direction, in moderately good order and regimen, and free from stones and weeds.