## The Field Engineer: A Handy Book of Practice in the Survey, Location, and Track-work of Railroads; Containing a Large Collection of Rules and Tables, Original and Selected Applicable to Both the Standard and the Narrow Gauge ... |

### Dentro del libro

Resultados 1-5 de 28

Página

... for us the strains in truss or arch ? The ordinary motives to endeavor here have

no place . There is neither faine nor profit to his book ; he remains impersonal , –

known in these drudging enterprises . Al best the author

... for us the strains in truss or arch ? The ordinary motives to endeavor here have

no place . There is neither faine nor profit to his book ; he remains impersonal , –

known in these drudging enterprises . Al best the author

**gives**name PREFACE . Página 4

Here 1 taken from -

always to be performed in the algebraic way . 9 . The operation of division ,

particularly when combined with that of multiplication , can often be simplified by

using the ...

Here 1 taken from -

**gives**2 for a result . The subtraction , as in this case , isalways to be performed in the algebraic way . 9 . The operation of division ,

particularly when combined with that of multiplication , can often be simplified by

using the ...

Página 6

Here 1 taken from -

always to be performed in the algebraic way . 9 . The operation of division ,

particularly when combined with that of multiplication , can often be simplified by

using the ...

Here 1 taken from -

**gives**2 for a result . The subtraction , as in this case , isalways to be performed in the algebraic way . 9 . The operation of division ,

particularly when combined with that of multiplication , can often be simplified by

using the ...

Página 17

Half the sum of the remaining angles added to half their difference will

larger of them , and half their sum diminished by half their difference will

lesser of them . The solution may be completed either by proposition 4 , or by ...

Half the sum of the remaining angles added to half their difference will

**give**thelarger of them , and half their sum diminished by half their difference will

**give**thelesser of them . The solution may be completed either by proposition 4 , or by ...

Página 18

Half the base added to half the said difference

diminished by it

vertical angle , the original triangle is divided into two , each of which falls under

the ...

Half the base added to half the said difference

**gives**the greater segment , anddiminished by it

**gives**the less ; thus , by means of the perpendicular from thevertical angle , the original triangle is divided into two , each of which falls under

the ...

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### Términos y frases comunes

4º curve A. D. Min added adjustment angle base called central angle centre CHORD circle column corresponding Cosine Cotang Cube curve decimal deflection degree of curvature difference direction dist distance divided elevation engineer equal equivalent error Example feet field figure fixed follows foot frog functions gauge given gives grade ground half height Hence inches intersection length located logarithm mark means measure method metres middle mile minutes Move multiply natural observation opposite parallel practice quotient radii radius range reference remaining result Roots rule screws side Sine slope square stake straight subtract Suppose switch-rail Table Table XVI tabular taken Tang tangent telescope terminal tion track triangle turn turnout vernier vertical

### Pasajes populares

Página 2 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.

Página 2 - The logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers. log» MN = log» M + log

Página 11 - If the arc, or angle, is less than 45°, look for the degrees at the top of the page, and for the minutes in the...

Página 15 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.

Página 1 - THE LOGARITHM: of a number is the exponent of the power to which it is necessary to raise a fixed number, to produce the given number.

Página 13 - Is to the sum of the other two sides, So is the difference of those sides To the difference of the segments of the base.

Página 13 - AC, (Fig. 25.) is to their difference ; as the tangent of half the sum of the angles ACB and ABC, to the tangent of half their difference.

Página 11 - If the angle is greater than 45°, look for the degrees at the bottom of the page, and for the minutes in the right-hand column ; then follow the corresponding...

Página 13 - In any plane triangle, as twice the rectangle under any two sides is to the difference of the sum of the squares of those two sides and the square of the base, so is the radius to the cosine of the angle contained by the two sides.

Página 9 - The operation of finding the unknown parts is called the solution of the triangle. 2. A plane angle is measured by the arc of a circle included between its sides; the centre of the circle being at the vertex, and its radius being 1. The circle, for convenience, is divided into 360 equal parts called degrees; 90 of these parts are included in a quadrant, which includes one-quarter of the circle, and is the measure of a right angle. Each degree is further divided into 00 equal parts called minutes,...