Elements of Surveying: With a Description of the Instruments and the Necessary Tables, Including a Table of Natural Sines |
From inside the book
Results 1-5 of 32
Page 26
... angle equal to a given angle . Let AB be the line , and A the given point . Take from the scale the chord of 60 de grees , and with this radius and the point A as a centre , describe the arc BC . Then A take from the scale the chord ...
... angle equal to a given angle . Let AB be the line , and A the given point . Take from the scale the chord of 60 de grees , and with this radius and the point A as a centre , describe the arc BC . Then A take from the scale the chord ...
Page 27
... angle with a Protractor . Place the diameter AB on the line , so that the centre shall fall on the angular point . Then count the degrees contained in the given angle from A towards B , or from B towards A and mark the extremity of the arc ...
... angle with a Protractor . Place the diameter AB on the line , so that the centre shall fall on the angular point . Then count the degrees contained in the given angle from A towards B , or from B towards A and mark the extremity of the arc ...
Page 28
... angle of the sector , the bases of the triangles , so formed , will be proportional to their sides . Therefore , if we extend the dividers from 50 to 50 , this distance will represent a line of 50 , to the given ... angle ; after which ...
... angle of the sector , the bases of the triangles , so formed , will be proportional to their sides . Therefore , if we extend the dividers from 50 to 50 , this distance will represent a line of 50 , to the given ... angle ; after which ...
Page 29
... given straight line , to erect a perpendicu lar to the line . 27. Let A be the given point , and BC the given line ... angle equal to a given angle . 29. Let A be the given point , AE the given line , and IKL the given angle . From ...
... given straight line , to erect a perpendicu lar to the line . 27. Let A be the given point , and BC the given line ... angle equal to a given angle . 29. Let A be the given point , AE the given line , and IKL the given angle . From ...
Page 30
... given angle , or a given arc , into two equal parts . 30. Let C be the given angle , and AEB the arc which measures it . From the points A and B as centres , de- A \ scribe with the same radius two arcs cutting each other in D ...
... given angle , or a given arc , into two equal parts . 30. Let C be the given angle , and AEB the arc which measures it . From the points A and B as centres , de- A \ scribe with the same radius two arcs cutting each other in D ...
Other editions - View all
Common terms and phrases
adjusted angle of elevation axis azimuth back-sights base line called centre clamp-screw coincide column comp compass Cosine D Cosine Sine Cotang course curve degrees determined difference of level direction divided double meridian distance draw east elongation error example feet field notes figure given angle given line given point ground Gunter's chain hence horizontal angle horizontal distance horizontal plane hypothenuse inches instrument intersection LatDegDegDegDeg Distance latitude and departure length levelling screws line AC line of collimation logarithm M.
M. Sine marked measure method multiplied natural sines needle object paper parallel passing perpendicular plane of reference protractor radius right angles right-angled triangle rods scale of equal secant side sights similar triangles Sine Sine spider's lines square chains staff subtract surface survey Tang tangent theodolite true meridian vernier plate vertical limb yards