A Rudimentary Treatise on Land and Engineering Surveying, with all the modern improvements ... With illustrationsVirtue brothers & Company, 1865 - 232 pages |
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Page vi
... taken 135 Level Book 136 Datum Line · 136 Practical Level Book 137 Running a Check Level 138 Level Book for ditto 142 Levelling for the Formation of a Section 144 Level Book for Plotting the Section To draw the Section Cross Levels ...
... taken 135 Level Book 136 Datum Line · 136 Practical Level Book 137 Running a Check Level 138 Level Book for ditto 142 Levelling for the Formation of a Section 144 Level Book for Plotting the Section To draw the Section Cross Levels ...
Page x
... taken from Heather's Treatise on Mathematical Instruments , in the Rudimentary Series , the best work on this subject . In this Chapter Rodham's method of keeping the Field Book , invented about fifty years ago , is given with slight ...
... taken from Heather's Treatise on Mathematical Instruments , in the Rudimentary Series , the best work on this subject . In this Chapter Rodham's method of keeping the Field Book , invented about fifty years ago , is given with slight ...
Page 10
... taken up by the follower ; and the same operation is repeated till the leader has expended all his arrows . Ten chains , or 1000 links , having now been measured and noted in the field book , the follower returns the ten arrows to the ...
... taken up by the follower ; and the same operation is repeated till the leader has expended all his arrows . Ten chains , or 1000 links , having now been measured and noted in the field book , the follower returns the ten arrows to the ...
Page 11
... taken to stretch it always with the same tension , as it will extend by much use , and will therefore require to be examined occasionally , and shortened , if necessary . But a good chain may be used several days , on tolerably smooth ...
... taken to stretch it always with the same tension , as it will extend by much use , and will therefore require to be examined occasionally , and shortened , if necessary . But a good chain may be used several days , on tolerably smooth ...
Page 12
... taken , and make the extremity of the other leg coincide accurately with the other end of the required distance , by turing the screw . NOTE . There are several other kinds of compasses , used for planning ; as those with moveable ...
... taken , and make the extremity of the other leg coincide accurately with the other end of the required distance , by turing the screw . NOTE . There are several other kinds of compasses , used for planning ; as those with moveable ...
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Common terms and phrases
ABCD accuracy acres adjustment arches axis beam compasses breadth bubble centre chains common correct cross sections cubic yards cutting datum line depth direction distance divided draw embankments equal error EXAMPLE feet field book figure finding the contents fore sights formation level formula Gentleman's Diary given gradient ground height horizontal inches instrument intersection laid Lay the ruler length level book main line mark measured mile move it parallel NOTE object offsets parallax parallel ruler perpendicular position Prob protractor quality lines quantity of land radii radius railway curves Rankine's method ratio right angles river river Ouse road scale screw serpentine curve shewn shews side sine slopes spirit level square links staff stations straight fence surface survey surveyors taken taking tangent telescope theodolite tion Tithe Commissioners trapezium triangle tube tunnel vernier vernier scale vertical viaduct whence
Popular passages
Page 3 - 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.
Page 123 - An Act for consolidating in one Act certain provisions usually inserted in Acts of inclosure, and for facilitating the mode of proving the several facts usually required on the passing of such Acts...
Page 240 - Gd. 108*. METROPOLIS LOCAL MANAGEMENT AMENDMENT ACT, 1862 ; with Notes and Index. Is. 109. NUISANCES REMOVAL AND DISEASE PREVENTION ACT. Is. 110. RECENT LEGISLATIVE ACTS applying to Contractors, Merchants, and Tradesmen. Is.
Page 8 - Similar triangles are to one another in the duplicate ratio of their homologous sides.