 ... multiplying it by the sectional area. The most convenient instrument for such measurements of velocity is a small light revolving fan, on whose axis there is a screw, which drives a train of wheel work, carrying indexes that record the number of revolutions...  A Manual of Civil Engineering - Page 699by William John Macquorn Rankine - 1872 - 784 pagesFull view - About this book
 | Henry Woodward - Electronic journals - 1869 - 646 pages
...screw, which drives a train of wheel-work, carrying an index that records the number of revolutions in a given time. The whole apparatus is fixed at the...immersed to different depths in different parts of the stream." ' Whence the mean velocity can. be obtained. "With regard to the rate at which the materials... | |
 | William John Macquorn Rankine - Mechanical engineering - 1866 - 624 pages
...the number of revolutions made in a given time. The whole apparatus is fixed at the end of a polo, so that it can be immersed to different depths in...noting the revolutions of the fan in a given time. II. When from the want of the proper instrument, or any other cause, the velocity of the current cannot... | |
 | Henry Woodward - Electronic journals - 1869 - 664 pages
...screw, which drives a train of wheel-work, carrying an index that records- the number of revolutions in a given time. The whole apparatus is fixed at the...immersed to different depths in different parts of the stream." ' Whence the mean velocity can be obtained. With regard to the rate at which the materials... | |
 | William John Macquorn Rankine - Heat engineering - 1870 - 638 pages
...is a small light revolving fan, on whose axis there is a screw, which drives a train of wheel work, carrying indexes that record the number of revolutions...pole, so that it can be immersed to different depths iii different parts of the channel The relation between the number of revolutions of the fan per minute,... | |
 | William John Macquorn Rankine - Heat engineering - 1878 - 746 pages
...is a small light revolving fan, on whose axis there is a screw, which drives a train of wheel work, carrying indexes that record the number of revolutions...current, should be determined experimentally, by moving theinstrument with different known velocities through a piece of still water, and noting the revolutions... | |
 | William John Macquorn Rankine - Mechanical engineering - 1888 - 696 pages
...carrying indexes that record the number of revolutions made in a given time. The whole apparatus is tixed at the end of a pole, so that it can be immersed to different depths iu different parts of the channel. The relation between the number of revolutions of the fan per minute,... | |
 | Charles Herbert Innes - Centrifugal pumps - 1898 - 260 pages
...revolutions. To graduate the instrument it must be drawn through still water at known velocities. It is fixed at the end of a pole, so that it can be placed at different depths in the stream whose velocity is to be measured. CHAPTER III. FORM ASSUMED... | |
 | Charles Herbert Innes - Centrifugal pumps - 1901 - 322 pages
...revolutions. To graduate the instrument it must be drawn through still water at known velocities. It is fixed at the end of a pole, so that it can be placed at different depths in the stream whose velocity is to be measured. CHAPTER lit. FORM ASSUMED... | |
 | William John Macquorn Rankine - Mechanical engineering - 1906 - 766 pages
...is a small light revolving fan, on whose axis there is a screw, which drives a train of wheel work, carrying indexes that record the number of revolutions...experimentally, by moving the instrument with different known veloo ties through a piece of still water, and noting the revolutions of the fan in a given time. II.... | |
 | United States. Army. Corps of Engineers - Engineering - 1876 - 852 pages
...train of wheel-work, carrying indexes that record the number of revolutions made in a given time. The apparatus is fixed at the end of a pole, so that it...minute, and the corresponding velocity of the current, was ascertained by numerous trials in still water with a skirt' rowed at various rates of speed. The... | |
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