 Turn the instrument on its spindle so as to bring the solar lens to be adjusted in the direction of the sun, and raise or lower the adjuster on the declination arc, until it can be clamped in such a position as to bring the sun's image as near as may...  Elements of Surveying and Leveling - Page 5by Charles Davies - 1883 - 564 pagesFull view - About this book
 | Gurley, W. & L. E., Troy, N.Y. - Surveying - 1871 - 228 pages
...position, by the tangent of the lati•ttiiiearc, or the leveling screws of the tripod. Then carefrilly turn the arm half way over, until it rests upon the...the position of the sun's image. •If it remains between the lines as before, the lens and plate are in adjustment ; if not, loosen the three screws... | |
 | Aaron Schuyler - Measurement - 1873 - 508 pages
...the adjuster on the declination arc till it can be clamped in such a position as to bring the sun's image, as near as may be, between the equatorial lines...position by the tangent of the latitude arc, or the leveling screws of the tripod. Then carefully turn the arm half-way over, till it rests upon the adjuster... | |
 | Aaron Schuyler - Navigation - 1873 - 536 pages
...latitude arc, or the leveling screws of the tripod. Then carefully turn the arm half-way over, till it rests upon the adjuster by the opposite faces of...observe the position of the sun's image. If it remains between the lines as before, the lens and plate are in adjustment; if not, loosen the three screws... | |
 | Horatio Nelson Robinson - Navigation - 1878 - 564 pages
...the adjuster on the declination arc, until it can be clamped in such a position as to bring the sun's image, as near as may be, between the equatorial lines...bring the image precisely into position by the tangent screw of the latitude arc, or the leveling screws of the tripod. Then carefully turn the arm half way... | |
 | Charles Fitzroy Bellows, Francis Hodgman - Surveying - 1886 - 490 pages
...the adjuster on the declination arc, until it can be clamped in such a position as to bring the sun's image as near as may be between the equatorial lines...Then carefully turn the arm half way over, until it tests upon the adjuster by the opposite faces of the rectangular blocks, and again observe the position... | |
 | Daniel Carhart - Surveying - 1888 - 528 pages
...the adjuster on the declination arc, until it can be clamped in such a position as to bring the sun's image as near as may be between the equatorial lines...position by the tangent of the latitude arc or the levellingscrews of the tripod. Then carefully turn the arm half-way over, until it rests upon the adjuster... | |
 | Daniel Carhart - Surveying - 1888 - 530 pages
...the adjuster on the declination arc, until it can be clamped in such a position as to bring the sun's image as near as may be between the equatorial lines...opposite silver plate, and bring the image precisely intoposition by the tangent of the latitude arc or the levellingscrews of the tripod. Then carefully... | |
 | Francis Hodgman, Charles Fitzroy Bellows - Surveying - 1891 - 520 pages
...the adjuster on the declination arc, until it can be clamped in such a position as to bring the sun's image as near as may be between the equatorial lines on the opposite silver plate, and1*ring the image precisely into position by the tangent of the latitude arc or the leveling-screws... | |
 | Gurley, W. & L. E., Troy, N.Y. - Surveying - 1895 - 490 pages
...that the image of the sun is brought precisely between the equatorial lines on the opposite plate. Carefully turn the arm half way over, until it rests...faces of the rectangular blocks, and again observe the sun's image. If it remains between the lines as before, the arm is in adjustment. If not, loosen the... | |
 | United States Army Service Schools. Ft. Leavenworth, Kansas - Military topography - 1895 - 318 pages
...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...observe the position of the sun's image. If it remains between the lines as before, the lens and plate are in adjustment, if not, loosen the three screws... | |
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