 inch face. They consist of a cylindrical box of metal, with a top of thin, elastic, corrugated metal. The air is removed from the box. When the atmospheric pressure increases, the top is pressed inwards, and, when it is diminished, the top is pressed...  A Textbook on Mining Engineering - Página 261900Vista completa - Acerca de este libro
 | Elroy McKendree Avery - 1878 - 480 páginas
...280. The Aneroid Barometer.—This instrument consists Nof a cylindrical box of metal with a top j^^^ of thin, elastic, corrugated metal. The § \ air is removed from the box. The top V^v^/ is pressed inward by an increased ^^gSSSi^Jo^. atmospheric pressure diminishes, it is... | |
 | Elroy McKendree Avery - 1881 - 478 páginas
...declarations arc subject to possible error. 280. The Aneroid Barometer.—This instrument consists FIG. 96. of a cylindrical box of metal with a top of thin,...corrugated metal. The air is removed from the box. The top is pressed inward by an increased atmospheric pressure ; whenever the atmospheric pressure... | |
 | Elroy McKendree Avery - 1885 - 616 páginas
...declarations are subject to possible error. -HO. The Aneroid Barometer.—This instrument consists of a cylindrical box of metal with a top of thin,...corrugated metal. The air is removed from the box. The top is pressed inward by an increased atmospheric pressure ; whenever the atmospheric pressure... | |
 | Elroy McKendree Avery - 1885 - 622 páginas
...declarations are subject to possible error. 280. The Aneroid Barometer.—This instrument consists of a cylindrical box of metal with a top of thin,...corrugated metal. The air is removed from the box. The top is pressed inward by an increased atmospheric pressure ; whenever the atmospheric pressure... | |
 | International Correspondence Schools - 1897 - 672 páginas
...two metal plates be made as perfectly smooth and flat as it is possible to g< watch up to an 8 or 10 inch face. They consist of a cylindrical box of metal,...is diminished, the top is pressed outwards by its own elasticity, aided by a spring beneath. These movements of the cover are transmitted and multiplied... | |
 | 1897 - 366 páginas
...These instruments are made in various sizes, from the size of a watch up to 8 or 10 inches in diameter. They consist of a cylindrical box of metal with a top of thin, elastic corrugated metal. The air is exhausted from the box. When the atmospheric pressure increases, the top is pressed inwards, and when... | |
 | International Correspondence Schools - 1899 - 596 páginas
...instruments are FlG made in various sizes, from the size of a large PNEUMATICS. 407 watch up to an 8 or 10 inch face. They consist of a cylindrical box of metal,...is diminished, the top is pressed outwards by its own elasticity, aided by a spring beneath. These movements of the cover are transmitted and multiplied... | |
 | 1900 - 532 páginas
...in various sizes, from the size of a large watch xip to an 8 or 10 inch face. The barometer consists of a cylindrical box of metal, with a top of thin,...is diminished, the top is pressed outwards by its own elasticity, aided by a spring beneath. These movements of the cover are transmitted and multiplied... | |
 | 1902 - 542 páginas
...1045. In Fig. 1!H is shown a cut of an aneroid barometer. These instruments are watch up to an 8 or 10 inch face. They consist of a cylindrical box of metal,...is diminished, the top is pressed outwards by its own elasticity, aided by a spring beneath. These movements of the cover are transmitted and multiplied... | |
 | 1905 - 764 páginas
...aneroid barometer. These instruments are made in various sizes, from the size of a watch up to an 8 or 10 inch face. They consist of a cylindrical box of metal...is diminished, the top is pressed outwards by its own elasticity, aided by a spring beneath. These movements of the cover are transmitted and multiplied... | |
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