 | 1831 - 660 էջ
...side of the former. It is obvious, that when such an arrangement is exposed to a high temperature, the metallic bar will force the index forward, to...will be left at the point of greatest elongation. It may also be observed, that the exact indication of this amount, is not in the slightest degree interfered... | |
 | Cyclopaedia - 1852 - 258 էջ
...arrangement is exposed to a high temperature, tli e metallic bar in the cavity o will force the index qq forward to the amount of the excess of its expansion...will be left at the point of greatest elongation. The contraction which the blacklead clay may suffer from the great heat is not likely to lead to any... | |
 | Jabez Hogg - 1853 - 390 էջ
...top of the register, which is partly cut away at the top, and tightened by a wedge of porcelain. When such an arrangement is exposed to a high temperature,...measurement of the distance which the index has been thrust forHEAT. ward from its first position ; and this, though in any case but small, may be effected with... | |
 | John Mitchell (F.C.S.) - 1868 - 802 էջ
...top of the register, which is partly cut away at the top, and tightened by a wedge of porcelain. When such an arrangement is exposed to a high temperature,...left at the point of greatest elongation. What is now reqiu'red is the measurement of the distance which the index has been thrust forward from its first... | |
 | John Henry Pepper - 1869 - 722 էջ
...top of the register, which is partly cut away at the top, and tightened by a wedge of porcelain. When such an arrangement is exposed to a high temperature,...expansion over that of the blacklead, and that, when cooled, it will be left at the point of greatest elongation. What is now required is the measurement... | |
 | John Henry Pepper - 1877 - 764 էջ
...top of the register, which is partly cut away at the top, and tightened by a wedge of porcelain. When such an arrangement is exposed to a high temperature,...expansion over that of the blacklead, and that, when cooled, it will be left at the point of greatest elongation. What is now required is the measurement... | |
 | John Mitchell (F.C.S.) - 1888 - 1002 էջ
...top of the register, which is partly cut away at the top, and tightened by a wedge of porcelain. When such an arrangement is exposed to a high temperature,...expansion over that of the black-lead, and that when again cool it will be left at the point of greatest elongation. What is now required i* the measurement of... | |
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A cylindrical piece of porcelain called the index is then placed upon the top of the bar, and confined in its place by a ring or strap of platinum passing round the top of the register, which is partly cut away at the top, and tightened by a wedge of... 