 | Institution of Civil Engineers (Great Britain) - 1892 - 520 страници
...clockwork. The ray from the fixed mirror is interrupted periodically by the vane E, and a beaded datum-line is given, which enables any irregularity in the advance...to be detected. The amount of divergence, from its datum-line, of the spot of light reflected by the movable mirror at any given moment, bears a relation... | |
 | 1892 - 608 страници
...gearing D driven by clockwork. The ray from the fixed mirror is interrupted periodically by the vane E and a beaded datum line is given, which enables any...mirror at any given moment bears a relation (which can be found out by calibration) to the temperature to which the thermo-j unction X is heated, and variations... | |
 | Royal Institution of Great Britain - 1893 - 742 страници
...driven by clockwork. The ray tn in the tixed mirror is interrupted periodically by the vane E, FIG. 4. and a beaded datum line is given, which enables any...advance of the plate to be detected. The amount of divergi nee from its datum line of the spot of light reflected by the movable mirror at any given moment... | |
 | Sir William Chandler Roberts-Austen - 1894 - 422 страници
...clockwork. The ray from the fixed mirror is interrupted periodically by the vane E, and a beaded datum-line is given, which enables any irregularity in the advance...to be detected. The amount of divergence, from its datum-line, of the spot of light reflected by the movable mirror at any given moment, bears a relation... | |
 | Sir William Chandler Roberts-Austen - 1914 - 472 страници
...means of gearing driven by clockwork. The ray from the fixed mirror is interrupted periodically by a vane, and a beaded datum line is given which enables...mirror at any given moment bears a relation (which can 1 Compte« Rendus, vol. ex., 1890, p. 346. Journ. Iron and Steel Inet., 1890, part I., p. 38. 2 Bull.... | |
 | Sir William Chandler Roberts-Austen - 1914 - 468 страници
...means of gearing driven by clockwork. The ray from the fixed mirror is interrupted periodically by a vane, and a beaded datum line is given which enables...mirror at any given moment bears a relation (which can 1 Comptes Rendus, vol. ex., 1890, p. 346. Journ. Iron and Sleel Inst., 1890, part I., p. 38. readily... | |
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E, and a beaded datum-line is given, which enables any irregularity in the advance of the plate to be detected. The amount of divergence, from its... 