A Treatise on Surveying,: Containing the Theory and Practice: : to which is Prefixed a Perspicuous System of Plane Trigonometry. : The Whole Clearly Demonstrated and Illustrated by a Large Number of Appropriate Examples. : Particularly Adapted to the Use of SchoolsKimber and Sharpless, no. 93, Market Street, and John Richardson, no. 244, Market Street., 1820 - 206 páginas |
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Página 138
... Off - sets and Intersections . OFF - SETS . Off - sets are lines drawn or measured , perpendicularly from a stationary line , to the angular points of the land In taking surveys , bounded on some of their sides on either side . 138 ...
... Off - sets and Intersections . OFF - SETS . Off - sets are lines drawn or measured , perpendicularly from a stationary line , to the angular points of the land In taking surveys , bounded on some of their sides on either side . 138 ...
Página 139
... off - sets . Directions for taking Off - sets . Take as many stations in the irregular boundary as may be most convenient . Then take the bearing from the first station to the second ; and in measuring the dis- tance stop against each ...
... off - sets . Directions for taking Off - sets . Take as many stations in the irregular boundary as may be most convenient . Then take the bearing from the first station to the second ; and in measuring the dis- tance stop against each ...
Página 140
... off - sets respectively . Multiply the sum of each two adjacent off - sets by their intercepted distance on the stationary line ; half the sum of the products will be the area required * . Note . The area of the off - sets must be added ...
... off - sets respectively . Multiply the sum of each two adjacent off - sets by their intercepted distance on the stationary line ; half the sum of the products will be the area required * . Note . The area of the off - sets must be added ...
Página 141
... off - sets . No. Sta . Dist . | Off - sets . | Intercep . | Sums of Products . Ch . Ch . Dist . Offsets . 1 0.00 0.30 2 0.95 0.84 0.95 1.14 1.0830 3 2.03 0.86 1.08 1.70 1.8360 4 3.28 0.50 1.25 1.36 1.7000 5 5.20 1.80 1.92 2.30 4.4160 6 ...
... off - sets . No. Sta . Dist . | Off - sets . | Intercep . | Sums of Products . Ch . Ch . Dist . Offsets . 1 0.00 0.30 2 0.95 0.84 0.95 1.14 1.0830 3 2.03 0.86 1.08 1.70 1.8360 4 3.28 0.50 1.25 1.36 1.7000 5 5.20 1.80 1.92 2.30 4.4160 6 ...
Página 142
... off - sets . 2nd Stationary Line . No. Sta . Dist . | Off - sets . / Intercep . Sums of Off - sets . Products . Ch . Ch . Dist . 1 0.00 0.50 2 6.10 3.40 6.10 3.90 23.7900 3 10.15 3.10 4.05 6.50 26.3250 4 14.08 3.96 3.93 7.06 27.7458 5 ...
... off - sets . 2nd Stationary Line . No. Sta . Dist . | Off - sets . / Intercep . Sums of Off - sets . Products . Ch . Ch . Dist . 1 0.00 0.50 2 6.10 3.40 6.10 3.90 23.7900 3 10.15 3.10 4.05 6.50 26.3250 4 14.08 3.96 3.93 7.06 27.7458 5 ...
Términos y frases comunes
ABCD ABFD acres adjacent adjacent angles angle ABC angle opposite angled triangle azimuth base bearing and distance breadth Calculation centre Co-secant Secant Co-sine Co-tang column decimal degrees DEMONSTRATION departure corresponding diff difference of latitude Dist divide division line draw equal EXAMPLES feet figures find the angle find the area four-pole chains fourth term given angle given area given bearing given ratio given side John Gummere Lat Dep latitude and departure length logarithm measured meridian distance natural number off-sets parallel parallelogram perches perpendicular perpendicular BC quired quotient radius rectangle remainder Required the area right angle right line right-angled triangle RULE semiperimeter side AB side AC sine square root station stationary line subtract tance Tang Tangent tract of land trapezium trapezoid triangle ABC trigonometry