The Field Engineer: A Handy Book of Practice in the Survey, Location, and Trackwork of Railroads; Containing ... Rules and Tables ... Applicable to ... the Standard and the Narrow Gauge ... |
Dentro del libro
Resultados 1-5 de 22
Página xv
Chords , versed sines , external secants , and tangents of a one - degree curve . .
. . . . 269 XVI . Slopes for topography . . . 315 XVII . Rise per mile of various
grades . . . . . 153 155 197 S ' amy . . . . . . . 317 LOGARITHMS . I . - II .
LOGARITHMS .
Chords , versed sines , external secants , and tangents of a one - degree curve . .
. . . . 269 XVI . Slopes for topography . . . 315 XVII . Rise per mile of various
grades . . . . . 153 155 197 S ' amy . . . . . . . 317 LOGARITHMS . I . - II .
LOGARITHMS .
Página 28
To read to the nearest tenth is sufficient , especially where the progress of the
party depends in a good degree on ihe level ; as , for example , in running grade
lines on preliminary survey . The location levels are usually carried along ...
To read to the nearest tenth is sufficient , especially where the progress of the
party depends in a good degree on ihe level ; as , for example , in running grade
lines on preliminary survey . The location levels are usually carried along ...
Página 31
The first step is to set the level , as at A , commanding , let us suppose , the lower
slope , and to ascertain its height above grade at the proposed section . This is
usually done by reference to the nearest bench , and pegging from stake to stake
...
The first step is to set the level , as at A , commanding , let us suppose , the lower
slope , and to ascertain its height above grade at the proposed section . This is
usually done by reference to the nearest bench , and pegging from stake to stake
...
Página 32
5 feet above grade This gives him a point in the air , 10 + 15 . 5 = 25 . 5 feet out
from the centre stake , level with the instrument , as the limit of the imaginary
section ; and from that point he can pretty well judge where a line corresponding
to the ...
5 feet above grade This gives him a point in the air , 10 + 15 . 5 = 25 . 5 feet out
from the centre stake , level with the instrument , as the limit of the imaginary
section ; and from that point he can pretty well judge where a line corresponding
to the ...
Página 33
5 feet above grade , commanding the upper slope . Note the change of ground
11 feet out , and take a rod there , recording the observation . The cutting at that
point ' is 25 . 5 – 9 . 5 = 16 feet , corresponding to a distance out for the side stake
...
5 feet above grade , commanding the upper slope . Note the change of ground
11 feet out , and take a rod there , recording the observation . The cutting at that
point ' is 25 . 5 – 9 . 5 = 16 feet , corresponding to a distance out for the side stake
...
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Otras ediciones - Ver todas
The Field Engineer: A Handy Book of Practice in the Survey, Location and ... William F. Shunk Sin vista previa disponible - 2008 |
The Field Engineer: A Handy Book of Practice in the Survey, Location, and ... William Findlay Shunk Sin vista previa disponible - 2017 |
Términos y frases comunes
4º curve added adjustment angle application base called central angle centre CHORD circle cloth column connecting corresponding Cosine Cotang Cube Roots decimal deflection difference direction distance divided Draw elevation engineer equal equivalent error Example feet field figure fixed follows frog gauge given gives grade ground half height Hence Illustrated inches indicate intersection length located logarithm mark means measure method middle Mile minutes Move multiplied natural Note observation opposite ordinate outer rail parallel practice quotient radii radius range remainder rule screws side Sine slope Square stake straight stretch Subtract Suppose switch-rail Table Table XVI taken Tang tangent telescope terminal tion track triangle turn turnout vernier vertical
Pasajes populares
Página 18 - ... the square of the hypothenuse is equal to the sum of the squares of the other two sides.
Página 4 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 11 - ... is supposed to be divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are designated respectively, by the characters ° ' ". For example, ten degrees, eighteen minutes, and fourteen seconds, would be written 10° 18
Página 4 - The logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers. log» MN = log» M + log