 | Virginia. Division of Mineral Resources - Geology - 1905 - 682 pages
...variation in the condition of the kiln atmosphere. As a matter of fact, however, repeated tests with a thermo-electric pyrometer demonstrate that the cones...through a peep-hole, the latter should not be opened wide during the burning, lest a cold draft strike the cones, and a skin forms on its surface and interferes... | |
 | Wisconsin Geological and Natural History Survey - Clay - 1906 - 358 pages
...atmosphere. As a matter of fact, however, repeated tests with a thermoelectric pyrometer demonstrates that the cones commonly fuse close to the theoretic...a position where they can be easily seen through a peep hole, the latter should not be opened widely during the burning lest a cold draft strike the cone,... | |
 | Wisconsin Geological and Natural History Survey - Clay - 1906 - 364 pages
...atmosphere. As a matter of fact, however, repeated tests with a thermoelectric pyrometer demonstrates that the cones commonly fuse close to the theoretic...a position where they can be easily seen through a peep hole, the latter should not be opened widely during the burning lest a cold draft strike the cone,... | |
 | Wisconsin Geological and Natural History Survey - Clay - 1906 - 358 pages
...atmosphere. As a matter of fact, however, repeated tests with a thermoelectric pyrometer demonstrates that the cones commonly fuse close to the 'theoretic...a position where they can be easily seen through a peep hole, the latter should not be opened widely during the burning lest a cold draft strike the cone,... | |
 | Heinrich Ries, F. L. Gallup - Clay - 1906 - 354 pages
...commonly fuse close to the theoretic temperatures. Manufacturers occasionally claim that the comes are unreliable and not satisfactory, forgetting that...a position where they can be easily seen through a peep hole, the latter should not be opened widely during the burning lest a cold draft strike the cone,... | |
 | Heinrich Ries - Clay - 1906 - 538 pages
...their misuse may often be the true FIG. 35. — Section of kiln showing method of placing Seger cones. reason for irregularities in their behavior. It is...reasonable precautions should be taken in using these test-pieces. The cones are commonly fastened to a brick with a piece of wet clay, and should be set... | |
 | HEINRICH. RIES - Clay - 1908 - 612 pages
...their misuse may often be the true Fro. 35. — Section of kiln showing method of placing Seger cones. reason for irregularities in their behavior. It is...reasonable precautions should be taken in using these test-pieces. The cones are commonly fastened to a brick with a piece of wet clay, and should be set... | |
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As a matter of fact, however, repeated tests with a thermoelectric pyrometer demonstrates that the cones commonly fuse close to the theoretic temperatures. Manufacturers occasionally claim that the cones are unreliable and not satisfactory, forgetting... 