The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 408
the state of theweather and atmosphere for several days, or weeks, do not admit of observa-tions being taken, it becomes a matter of great importance to know theactual distance the vessel has traversed. The instrument I propose for this purpose is free from mechanical com-plexity, depending for its… … instrument. The figures are drawn to a scale of two inches to a foot. Fig1, is a plan ; fig. 2, is a side elevation ; fig. 3, is an end elevation ; and fig4, is a broken section of the pipe /, and mouth-piece g. a a, is a frame ojstand; i, is a bracket, forming with the piece c, a universal joint…
Architecture · Civil engineering · Science
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