 | J. Leffel & Co - 1874 - 346 páginas
...notch in such cases is that if it is made wide enough to allow the water to pass in time of flood, it must be so wide that for long periods, in moderately dry weather, the water flows so shallow over its crest that its indications cannot be relied on. Accordingly, it is proposed to make the triangular... | |
 | John Neville (civil engineer.) - 1875 - 566 páginas
...liowever, but ill adapted for the measurement of very * Francis's Lowell Hydraulic Experiments, ]-. 119. variable quantities of water, such as commonly occur...dry •weather, the water flows so shallow over its crest, that its indications cannot be relied on. To remove, in some degree, this objection, gauges... | |
 | John Neville - 1875 - 572 páginas
...however, but ill adapted for the measurement of very * Francis's Lowell Hydraulic Experiments, p. 119. variable quantities of water, such as commonly occur...moderately dry weather, the water flows so shallow over its crest, that its indications cannot be relied on. To remove, in some degree, this objection, gauges... | |
 | John Neville - 1875 - 582 páginas
...however, but ill adapted for the measurement of very * Francis's Lowell Hydraulic Experiments, p. 119. variable quantities of water, such as commonly occur...moderately dry weather, the water flows so shallow over its crest, that its indications cannot be relied on. To remove, in some degree, this objection, gauges... | |
 | Luke Livingston Macassey - 1877 - 122 páginas
...application in practice, are for many purposes suitable and convenient. They are, however, but ill adapted for the measurement of very variable quantities of...moderately dry weather the water flows so shallow on its crest that its indications cannot be relied on. " To remove in some degree this objection, gauges... | |
 | William Davis Haskoll - 1886 - 354 páginas
...practice. For many purposes they are both suitable and convenient. They are, however, but ill adapted for the measurement of very variable quantities of water, such as commonly occur in gauging small or moderately sized streams ; this is particularly the case with streams flowing through... | |
 | British Association for the Advancement of Science. Meeting - 1862 - 796 páginas
...ordinary rectangular notches, although for many purposes suitable and convenient, are but ill adapted ibr the measurement of very variable quantities of water,...to the engineer to be gauged in rivers and streams ; because, if the rectangular notch be made wide enough to allow the water to pass through it in flood... | |
 | Franklin Institute (Philadelphia, Pa.) - 1859 - 552 páginas
...application in practice, are, for many purposes, suitable and convenient. They are, however, but ill adapted for the measurement of very variable quantities of...moderately dry weather, the water flows so shallow over its crest, that its indications cannot be relied on. To remove in some degree this objection, gauges for... | |
 | 1862 - 514 páginas
...out that the ordinary rectangular notches, although for many purposes suitable and convenient, are but ill-adapted for the measurement of very variable...to the engineer to be gauged in rivers and streams ; because if the rectangular notch be made wide enough to allow the water through in flood times, it... | |
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If the rectangular notch is to be made wide enough to allow the water to pass in flood times, it must be so wide that for long periods, in moderately dry weather, the water flows so shallow over its crest, that its indications cannot be relied on. 
