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Llibres Llibres 1 - 10 de 16 sobre Then carefully turn the arm half way over, until it rests upon the adjuster by the....
" Then carefully turn the arm half way over, until it rests upon the adjuster by the opposite faces of the rectangular blocks, and again observe the position of the sun's image. If it remains between the lines as before, the... "
Surveying and Navigation, with a Preliminary Treatise on Trigonometry and ... - Pągina 207
per Aaron Schuyler - 1864 - 490 pągines
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Gurley Manual of Surveying Instruments ...

1871
...latitude arc, or the leveling screws of the tripod. Then carefully turn the arm half way over, until it rests upon the Adjuster by the opposite faces of...which confine the plate to the block, and move the plato under their heads, until one half the error in the position of the sun's image is removed. Again...
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Gurley Manual of Surveying Instruments ...

1871
...lati•ttiiiearc, or the leveling screws of the tripod. Then carefrilly turn the arm half way over, until it rests upon the adjuster by the opposite faces of...are in adjustment ; if not, loosen the three screws "wtiich confine the plato to the block, and move the plato «fifler their heads, until one half the...
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A New Treatise on Surveying and Navigation, Theoretical and Practical: With ...

Horatio Nelson Robinson - 1878 - 512 pągines
...latitude arc, or the leveling screws of the tripod. Then carefully turn the arm half way over, until it rests upon the adjuster by the opposite faces of...to the block, and move the plate under their heads, until one half the error in the position of the sun's image is removed. Again bring the image between...
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Gurley Manual of Surveying Instruments ...

Gurley, W. & L. E., Troy, N.Y. - 1878
...latitude arc, or the leveling screws of the tripod. Then carefully turn the arm half way over, until it rests upon the adjuster by the opposite faces of...image. If it remains between the lines as before, tho leus and plate are in adjustment ; if not, loosen the three screws whicL confine the plate to the...
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Elements of Surveying and Leveling

Charles Davies - 1883 - 564 pągines
...latitude arc or the leveling-screws of the tripod. Then carefully turn the arm half way over, until it rests upon the adjuster by the opposite faces of...observe the position of the sun's image. If it remains bstween the lines as before, the lens and plate are in adjustment ; if not, loosen the three screws...
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Elements of Surveying and Leveling

Charles Davies - 1883 - 564 pągines
...latitude arc or the loveling-screws of the tripod. Then carefully turn the arm half way over, until it rests upon the adjuster by the opposite faces of...rectangular blocks, and again observe the position of-the sun's image. If it remains between the lines as before, the lens and plate are in adjust ment...
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A Manual of Land Surveying: Comprising an Elementary Course of Practice with ...

Charles Fitzroy Bellows, Francis Hodgman - 1886 - 464 pągines
...arc or the leveling-screws of the tripod. Then carefully turn the arm half way over, until it tests upon the adjuster by the opposite faces of the rectangular...to the block, and move the plate under their heads, until one-half the error in the position of the sun's image is removed. Again bring the image between...
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A Treatise on Plane Surveying

Daniel Carhart - 1888 - 498 pągines
...latitude arc or the levellingscrews of the tripod. Then carefully turn the arm half-way over, until it rests upon the adjuster by the opposite faces of...to the block, and move the plate under their heads, until one-half the error in the position of the sun's image is removed. Again bring the image between...
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A Manual of Land Surveying: Comprising an Elementary Course of Practice with ...

Francis Hodgman, Charles Fitzroy Bellows - 1891 - 480 pągines
...latitude arc or the leveling-screws of the tripod. Then carefully turn the arm half way over, until it rests upon the adjuster by the opposite faces of...loosen the three screws which confine the plate to the bloek, and move the plate under their heads, until one-half the error in the position of the sun's...
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Military Topography and Sketching. Prepared for Use in the Department of ...

United States Army Service Schools. Ft. Leavenworth, Kansas - 1895 - 281 pągines
...position by the tangent screw. Then carefully turn the arm over until it rests upon the adjuster on the opposite faces of the rectangular blocks, and...to the block, and move the plate under their heads until one half the error in the position of the suns image is removed. Repeat for a test and correct...
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