Surveying, as Practiced by Civil Engineers and Surveyors ...: Intended as a Handbook for Field and Office Use, Also as a Textbook for Students |
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Page viii
... Plate - To Straighten the Needle - Adjustment of the Pivot Pin- Pocket Magnifier - Magnetic Attraction about the Person - Sight Slits - Remagnetising the Needle - Adjustment of the Level - To make the Collimation Line coincide with the ...
... Plate - To Straighten the Needle - Adjustment of the Pivot Pin- Pocket Magnifier - Magnetic Attraction about the Person - Sight Slits - Remagnetising the Needle - Adjustment of the Level - To make the Collimation Line coincide with the ...
Page 20
... Plate I. , is an example of a larger survey measured with a 66 ft . chain . In this case it will be observed that a main chain line AB , 69.85 chains long , has been run through the centre of the survey . Upon it the triangles AFO , BEO ...
... Plate I. , is an example of a larger survey measured with a 66 ft . chain . In this case it will be observed that a main chain line AB , 69.85 chains long , has been run through the centre of the survey . Upon it the triangles AFO , BEO ...
Page 20
... k B E OF - 499 49 FIELD BOOK OF CHAIN SURVEY . 2750 2640 . 2560. EXAMPLE — SURVEY WITH CHAIN ONLY Chains 10 5 1 . ર ૩૭૨૩ Scale 0 10 20 30 40 Chains Fig . 24 . 1 Footpath 5040 5000 Footpath fence 4275 fence fence Road. PLATE I.
... k B E OF - 499 49 FIELD BOOK OF CHAIN SURVEY . 2750 2640 . 2560. EXAMPLE — SURVEY WITH CHAIN ONLY Chains 10 5 1 . ર ૩૭૨૩ Scale 0 10 20 30 40 Chains Fig . 24 . 1 Footpath 5040 5000 Footpath fence 4275 fence fence Road. PLATE I.
Page 20
... Plate I. , is an example of a larger survey measured with a 66 ft . chain . In this case it will be observed that a main chain line AB , 69.85 chains long , has been run through the centre of the survey . Upon it the triangles AFO , BEO ...
... Plate I. , is an example of a larger survey measured with a 66 ft . chain . In this case it will be observed that a main chain line AB , 69.85 chains long , has been run through the centre of the survey . Upon it the triangles AFO , BEO ...
Page 56
... of a strong sheet of plate glass in a wooden frame with sometimes the addition of a mirror underneath to reflect light upwards . The plan to be copied is placed on the glass , and the light 56 SURVEYING WITH THE CHAIN ONLY .
... of a strong sheet of plate glass in a wooden frame with sometimes the addition of a mirror underneath to reflect light upwards . The plan to be copied is placed on the glass , and the light 56 SURVEYING WITH THE CHAIN ONLY .
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Surveying, As Practiced by Civil Engineers and Surveyors ...: Intended As a ... John Whitelaw, Jr. No preview available - 2015 |
Common terms and phrases
accuracy accurate adjustment altitude aneroid axis azimuth back sight barometer bench marks bubble tube calculated centre line chain line Chapter clinometer cloth collimation line compass contours correct cross hairs cross sections Crown 8vo curve D. K. CLARK deflection angle difference distance elevation Engineer equal Feet fence field book fixed fore sight formulæ given gradient graduated Greenwich mean ground Handbook height horizontal Illustrations instrument latitude length longitude magnetic bearings mean measured meridian method metres miles millimetres minutes Nautical Almanac object glass observed angle parallel perpendicular plane Plates plotted plumb line position Practical railway ranging rod right ascension scale screws sextant shown in Fig side slope spherical spirit level stadia hairs staff reading star station surface survey surveyor tacheometer Tacheometry taken tangent point tape telescope temperature theodolite traverse Treatise triangle Troughton & Simms tunnel vernier vertical angle wire
Popular passages
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