The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this Art. With a New Set of Accurate Mathematical TablesHarper, 1832 - 348 páginas |
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Página 78
... feet in length , hav- ing drawn upon it equal parts , chords , sines , tangents , secants , & c . These are contained on one side of the scale , and the other side contains the logarithms of these numbers . Mr. Edmund Gunter was the ...
... feet in length , hav- ing drawn upon it equal parts , chords , sines , tangents , secants , & c . These are contained on one side of the scale , and the other side contains the logarithms of these numbers . Mr. Edmund Gunter was the ...
Página 86
... feet , yards , perches , or miles , & c . and this mark ° , either in an angle or on a side , denotes the angle or side to be required . From these propositions it may be observed , that to find a side , when the angles and one side are ...
... feet , yards , perches , or miles , & c . and this mark ° , either in an angle or on a side , denotes the angle or side to be required . From these propositions it may be observed , that to find a side , when the angles and one side are ...
Página 113
... feet 4 inches diameter , one rotation would be 10 feet , which is half a plan- tation perch ; and because 320 perches make a mile , therefore 640 rotations will be a mile also ; and the machinery is so con- trived that by means of a ...
... feet 4 inches diameter , one rotation would be 10 feet , which is half a plan- tation perch ; and because 320 perches make a mile , therefore 640 rotations will be a mile also ; and the machinery is so con- trived that by means of a ...
Página 115
... quotient will be the links . Thus : In 31.52 perches how many two - pole chains and links ? ch . l . 2 ) 31.52 ( 15 . 38 , Answer . 11 4 ) 152 ( 38 PROBLEM VII . To reduce chains and links to feet 32 OF THE CHAIN . 115.
... quotient will be the links . Thus : In 31.52 perches how many two - pole chains and links ? ch . l . 2 ) 31.52 ( 15 . 38 , Answer . 11 4 ) 152 ( 38 PROBLEM VII . To reduce chains and links to feet 32 OF THE CHAIN . 115.
Página 116
... feet in a four - pole chain will give the feet and decimals of a foot . Thus : In 17ch . 217. of two - pole chains how many feet ? ch . l . 8. 71 of four - pole chains . 66 feet 1 chain . 5226 5226 Answer , 574 ft . 10 in . Feet 574.86 ...
... feet in a four - pole chain will give the feet and decimals of a foot . Thus : In 17ch . 217. of two - pole chains how many feet ? ch . l . 8. 71 of four - pole chains . 66 feet 1 chain . 5226 5226 Answer , 574 ft . 10 in . Feet 574.86 ...
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Términos y frases comunes
ABCD acres altitude arch azimuth base bearing blank line centre chains and links circle circumferentor co-sine column compasses contained cube root decimal diagonal diameter difference of latitude divided divisions divisor draw east ecliptic edge EXAMPLE feet field-book figure four-pole chains geometrical series given angle given number half the sum height Hence horizon glass hypothenuse inches instrument length logarithm manner measure meridian distance method multiplied needle nonius number of degrees object observed offsets opposite parallelogram perches perpendicular plane prob PROBLEM proportion protractor quadrant quotient radius rhombus right angles right line scale of equal SCHOLIUM screw secant sect sector semicircle side square root station stationary distance subtract suppose survey taken tangent theo theodolite THEOREM third trapezium triangle ABC trigonometry two-pole chains vane vulgar fraction whence
Pasajes populares
Página 173 - In like manner, when it is said, that " triangles on the same base, and between the same parallels, are equal...
Página 49 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Página 163 - RULE. From half the sum of the three sides subtract each side severally.
Página 41 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
Página 97 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Página 41 - The radius of a circle is a right line drawn from the centre to the circumference.
Página 52 - Triangles upon equal bases, and between the same parallels, are equal to one another.
Página 24 - The square of the sum of two numbers is equal to the square of the first number plus twice the product of the first and second number plus the square of the second number.
Página 35 - DIVISION BY LOGARITHMS. RULE. From the logarithm of the dividend subtract the logarithm of the divisor, and the number answering to the remainder will be the quotient required.