A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams (1829)
Curtis, Thomas, fl. 1820 · London : Thomas Tegg · leaf 418
dnear the grate. The late Ur. Kennedy of Edin-burgh, whose opinion on this subject claims thegreatest weight, found that the strongest heat inour common wind-furnaces was within two orthree inches of the grate. This, therefore, is themost advantaseous position for the crucible, andstill more so… … In the diagram annexed c are two bricks, which can be let in at pleasure to dimi-nish the capacity; iis another grate, which can be placed upon the bricks c and c for smaller purposes; d and d are bricks, which can be placed upon the grate 6 to diminish the upper capacity, so that, in fact, there…
Encyclopedias and dictionaries · Aeronautics
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