The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtEvert Duyckinck, 1814 - 508 σελίδες |
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Σελίδα
... Chain 134 Sect . 1. Introductory Princi- 2. Description of In- 3. To find the Latitude by the Meridian Al- tude of the Sun struments 298 305 $ 16 The Circumferentor 152 The Theodolite 4. Variation of the Com- 159 pass 318 The Semicircle ...
... Chain 134 Sect . 1. Introductory Princi- 2. Description of In- 3. To find the Latitude by the Meridian Al- tude of the Sun struments 298 305 $ 16 The Circumferentor 152 The Theodolite 4. Variation of the Com- 159 pass 318 The Semicircle ...
Σελίδα 88
... chains , yards , feet , & c . each part on the scale answering to one foot , one yard , & c . and the plan will be ... chain , or one yard , & c . then will the larger divisions be so 88 MATHEMATICAL.
... chains , yards , feet , & c . each part on the scale answering to one foot , one yard , & c . and the plan will be ... chain , or one yard , & c . then will the larger divisions be so 88 MATHEMATICAL.
Σελίδα 134
... CHAIN . THE stationary distance , or merings of ground , are measured either by Gunter's chain of four poles or ... chains and their respective links will differ also . The English statute - perch is 54 yards , the two- pole chain ...
... CHAIN . THE stationary distance , or merings of ground , are measured either by Gunter's chain of four poles or ... chains and their respective links will differ also . The English statute - perch is 54 yards , the two- pole chain ...
Σελίδα 135
... chain , there is a large ring , or sometimes a round piece of brass , fixed at every 10 links ; and at 50 links , or in the middle , there are two large rings . In such chains as have a brass piece at every 10 links , there is the ...
... chain , there is a large ring , or sometimes a round piece of brass , fixed at every 10 links ; and at 50 links , or in the middle , there are two large rings . In such chains as have a brass piece at every 10 links , there is the ...
Σελίδα 136
... chains ; to which , if the odd links be annexed , the distance line required in chains and links is obtained , which must be registered in the field book , as will hereaf- ter be shewn . If the distance exceeds 10 , 20 , 30 , & c ...
... chains ; to which , if the odd links be annexed , the distance line required in chains and links is obtained , which must be registered in the field book , as will hereaf- ter be shewn . If the distance exceeds 10 , 20 , 30 , & c ...
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acres altitude Answer arch base bearing blank line centre chains and links circle circle of latitude circumferentor Co-sec Co-tang column compasses contained decimal Dep Lat Dep difference Dist divided divisions draw east Ecliptic edge EXAMPLE feet field-book figures fore four-pole chains geometrical series given number half the sum Horizon glass hypothenuse inches instrument Lat Dep Lat latitude length logarithm measure meridian distance multiplied Natural Co-sines natural sine Nonius number of degrees object observed off-sets opposite parallelogram perches perpendicular plane pole pole star PROB proportion protractor Quadrant quotient radius right angles right line scale of equal SCHOLIUM screw Secant sect semicircle Sextant side sights square root station stationary distance subtracted survey taken Tang tangent theo theodolite trapezium triangle ABC trigonometry vane versed sine vulgar fraction