The Practical Surveyor's Guide: Containing the Necessary Information to Make Any Person of Common Capacity a Finished Land Surveyor, Without the Aid of a TeacherH.C. Baird, 1864 - 121 páginas |
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Página 17
... diameter , M is a point in the circle . But from similar triangles D G E , D B C , D B = 2 D G , to each of these equals add A D + A C = 2 A D , and B A + A C = 2 A G , to each of which equals add B C - 2 G E = 2 GK .. A B + A C + B C ...
... diameter , M is a point in the circle . But from similar triangles D G E , D B C , D B = 2 D G , to each of these equals add A D + A C = 2 A D , and B A + A C = 2 A G , to each of which equals add B C - 2 G E = 2 GK .. A B + A C + B C ...
Página 33
... diameter given . Rule - Square the diameter , and multiply by .7854 , and you have the area . 22d . To find the area of an ellipsis . Rule- Multiply the transverse and conjugate diameters together , and that product by .7854 , and you ...
... diameter given . Rule - Square the diameter , and multiply by .7854 , and you have the area . 22d . To find the area of an ellipsis . Rule- Multiply the transverse and conjugate diameters together , and that product by .7854 , and you ...
Página 41
... ; and , according to Sir Isaac Newton , the diameter of the earth to be 41,798,177 feet , we will then have , as the circumference of a great circle of the earth is to 360 ° , so 4 * THE SURVEYOR'S GUIDE . 41 A. R. P. ...
... ; and , according to Sir Isaac Newton , the diameter of the earth to be 41,798,177 feet , we will then have , as the circumference of a great circle of the earth is to 360 ° , so 4 * THE SURVEYOR'S GUIDE . 41 A. R. P. ...
Página 59
... diameter or ruler A B , so that when the semi- circle is turned vertically the diameter may be fixed horizontally . B Z K T Fig . 26 . The use of the Instrument in measuring distances : EXAMPLE. THE SURVEYOR'S GUIDE . 59.
... diameter or ruler A B , so that when the semi- circle is turned vertically the diameter may be fixed horizontally . B Z K T Fig . 26 . The use of the Instrument in measuring distances : EXAMPLE. THE SURVEYOR'S GUIDE . 59.
Página 60
... diameter , you see a mark set up at B , and having fixed the di- ameter in that position , turn the moving index till through the narrow slit of a small sight fixed on the center , you see the hair in the other sight cut the spire at C ...
... diameter , you see a mark set up at B , and having fixed the di- ameter in that position , turn the moving index till through the narrow slit of a small sight fixed on the center , you see the hair in the other sight cut the spire at C ...
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acres ANDREW DUNCAN angular spaces Art of Dyeing back sight base line bearing breadth Byrne calculation CAREY chains and links Charles O'Neill Chemistry chord cloth Coal Tar Colors compass course curve deducted degree of curvature diagonals diameter difference of latitude distance divided Dussauce Dyeing East or West edition Engravings equal EXAMPLE extreme point feet find the area fixed four pole chains given gives the area half the sum HENRY CAREY Illustrated inches inflected intersection Iron LATITUDE AND DEPARTURE length Let A B C limb lustrated Manufacture Metals method Morfit Mulhouse multiply natural sine needle Northings OLIVER BYRNE parallel parallelogram perches perpendicular Phosphorus place their sum Practical Treatise radius ruler Rules and Practical Set your instrument sine South spherical excess square four pole square root subtract surveyor TABLES OF LATITUDE tance tangent theodolite tion trapezium volume water wheels Young Fustic