 | Frederick Walter Simms - 1834 - 124 pages
...carefully, that it may not disturb the vertical arc, and if the bubble resume its former situation in the middle of the tube, all is right; but if it...which elevates or depresses that end of the level, and the other half by the tangentscrew, P; this process must be repeated until the adjustment is perfect... | |
 | Frederick Walter Simms - 1834 - 134 pages
...carefully, that it may not disturb the vertical arc, and if the bubble resume its former situation in the middle of the tube, all is right; but if it...retires to one end, bring it back one half, by the screw f, which elevates or depresses that end of the level, and the other half by the tangentscrew, P; this... | |
 | Frederick Walter Simms - 1836 - 160 pages
...instead of a vertical one. turb the vertical arc, and if the bubble resume its former situation hi the middle of the tube, all is right ; but if it retires...which elevates or depresses that end of the level, and the other half by the tangent-screw, P : this process must be repeated until the adjustment is... | |
 | Basil Jackson - 1847 - 410 pages
...carefully, that it may not disturb the vertical arc, and if the bubble resume its former situation, in the middle of the tube, all is right ; but if it retire to one end, bring it back one half by the screw, B., which elevates or depresses that end of... | |
 | Benjamin Pike - 1848 - 356 pages
...carefully, that it may not disturb the vertical arc, and if the bubble resume its former situation in the middle of the tube, all is right ; but if it...which elevates or depresses that end of the level, and the other half by the tangent-screw, P ; this process must be repeated until the adjustment is... | |
 | Benjamin Pike (Jr.) - 1848 - 482 pages
...carefully, that it may not disturb the vertical arc, and if the bubble resume its former situation in the middle of the tube, all is right ; but if it...which elevates or depresses that end of the level, and the other half by the tangent-screw, P ; this process must be repeated until the adjustment is... | |
 | Frederick Walter Simms - 1850 - 184 pages
...done carefully that it may not disturb the vertical arc, and if the bubble resume its former situation in the middle of the tube, all is right ; but if it retire to one end, bring it back one half, by the screw f, which elevates or depresses that end of... | |
 | Sir Henry Edward Landor Thuillier - 1851 - 826 pages
...carefully, that it may not disturb the vertical arc, and if the bubble resume its former situation in the middle of the tube) all is right ; but if it retires to one end, bring it back onehalf, by the screw, f, which elevates or depresses that end of the level, and the other half by... | |
 | William Davis Haskoll - 1868 - 252 pages
...done carefully that it may not disturb the vertical arc, and if the bubble resume its former situation in the middle of the tube, all is right ; but if it retires to one end, bring it back onehalf, by the screw, which elevates or depresses that end of the level, and the other half by the... | |
 | William Davis Haskoll - 1886 - 354 pages
...carefully that it may not disturb the vertical arc, and if the bubble resume it's former situation in the middle of the tube, all is right ; but if it retires to one end, bring it back one-half, by the screw, which elevates or depresses that end of the level, and the other half by the... | |
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P; which done, reverse the telescope in its Y's, that is, turn it end for end, which must be done carefully, that it may not disturb the vertical arc, and if the bubble resume its former situation in the middle of the tube, all is right; but if it retires... 