The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtJ.J. Harper, 1828 - 435 páginas |
Dentro del libro
Resultados 1-5 de 44
Página 78
... object of what is called Plane Trigo- nometry , because the six parts , considered here , are in the same plane it is also denominated Rectilineal Trigonometry . The second question belongs to Spherical Trigonometry , wherein the six ...
... object of what is called Plane Trigo- nometry , because the six parts , considered here , are in the same plane it is also denominated Rectilineal Trigonometry . The second question belongs to Spherical Trigonometry , wherein the six ...
Página 105
... thereby increased , so that no one can be too circumspect in this point . In measuring a stationary distance , there is an object 14 PART II The Chain Maritime Surveying 220 Levelling Promiscuous Ques- PART III Introductory Princi- 2.
... thereby increased , so that no one can be too circumspect in this point . In measuring a stationary distance , there is an object 14 PART II The Chain Maritime Surveying 220 Levelling Promiscuous Ques- PART III Introductory Princi- 2.
Página 106
... object fixed in the extreme point of the line to be measured ; this is a direction for the hinder chainman to govern the foremost one by , in order that the distance may be measured in a right line ; for if the hinder chain- man causes ...
... object fixed in the extreme point of the line to be measured ; this is a direction for the hinder chainman to govern the foremost one by , in order that the distance may be measured in a right line ; for if the hinder chain- man causes ...
Página 116
... object be set at B , draw yourself back- ward to any convenient distance C , so that B may cover A : from B , lay off any other distance by the river's side to E , and complete the parallelograin EBCD : stand at D , and cause a mark to ...
... object be set at B , draw yourself back- ward to any convenient distance C , so that B may cover A : from B , lay off any other distance by the river's side to E , and complete the parallelograin EBCD : stand at D , and cause a mark to ...
Página 117
... object to take your view to : then having placed your instrument horizon- tally ( which is easily done by turning the box so that the ends of the needle may be equidistant from its bottom , and it traverses or plays freely ) turn the ...
... object to take your view to : then having placed your instrument horizon- tally ( which is easily done by turning the box so that the ends of the needle may be equidistant from its bottom , and it traverses or plays freely ) turn the ...
Otras ediciones - Ver todas
Términos y frases comunes
ABCD acres altitude Answer arch base bearing centre chains and links circle circumferentor Co-sec Co-tang column compasses contained cube root decimal difference of latitude Dist divided divisions divisor draw east Ecliptic edge EXAMPLE feet field-book figure four-pole chains given angle given number half the sum height Hence Horizon glass hypothenuse inches instrument length logarithm measure Meridian Altitude meridian distance method multiplied natural co-sine natural number natural sine Nonius number of degrees object observed off-sets opposite parallel parallelogram perches perpendicular plane prob PROBLEM proportional protractor Quadrant quotient radius rhombus right angles right line Secant sect semicircle Sextant side square root station subtract Sun's survey taken Tang tangent theo theodolite THEOREM trapezium triangle ABC trigonometry two-pole chains vane versed sine vulgar fraction whence