The Civil Engineer's Pocket-book: Of Mensuration, Trigonometry, Surveying, Hydraulics ... Etc. ...J. Wiley & Sons, 1894 - 834 pages |
Table des matières
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Autres éditions - Tout afficher
The Civil Engineer's Pocket-book: Of Mensuration, Trigonometry, Surveying ... John Cresson Trautwine Affichage du livre entier - 1893 |
The Civil Engineer's Pocket Book, of Mensuration, Trigonometry, Surveying ... John Cresson Trautwine Affichage du livre entier - 1892 |
Expressions et termes fréquents
abut axis beam body bolts bottom breakg load bridge cast iron cen of grav center load center of gravity chord Circumf clear span coeff Cosine Cotang cub ft cube cubic cylinder depth diam diameter diff direction dist draw elastic limit entire equal feet flange foot force fric friction frustum girders given half head horizontal joint lbs per sq length leverage measure miles moment of inertia mult oblique parallel parallelogram of forces perp piles pipe plane plate pounds pres pressure pull purlins radius radius of gyration rafter reqd resistance resultant right angles rivets rope screw shearing side Sine sliding slope sq ft sq inch strain strength Strength of Materials struts surf surface Tang thick timber tons triangle truss velocity vert vertical weight width 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 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 374 - On wet or greasy rails, without sand, it fell as low as .15 in one experiment, but averaged about .18. With the use of sand on wet rails it was above .20 at all times; and when the sand was applied at the moment of starting, so that the wind of the rotating wheels did not tend to blow it away, it rose up to .35, and even above .40.
Page 385 - 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 410 - ... levied by the United States of America on sheet and plate iron and steel. But this act shall not be construed to increase duties upon any articles which may be imported. SEC. 2. That the Secretary of the Treasury is authorized and required to prepare suitable standards in accordance herewith. SEC. 8. That in the practical use and application of the standard gauge hereby established a variation of two and one-half per cent either way may be allowed.
Page 410 - And on and after July first, eighteen hundred and ninety-three, the same and no other shall be used in determining duties and taxes levied by the United States of America on sheet and plate iron and steel.
Page 308 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Page vii - Comparatively few engineers are good mathematicians, and in the writer's opinion it is fortunate that such is the case, for nature rarely combines high mathematical talent with that practical tact and observation of outward things so essential to a successful engineer.
Page x - To him they are but little more than striking instances of how completely the most simple facts may be buried out of sight under heaps of mathematical rubbish.
Page 292 - ... degrees Fahrenheit, and must be maintained at not less than this temperature during the time of dipping. The material will thicken and deteriorate after a number of pipes have been dipped ; fresh pitch must, therefore, be frequently added, and occasionally the vessel must be entirely emptied of its old contents and refilled with fresh pitch; the refuse will be hard and brittle like common pitch.