 Ibs. pressure. The trumpet was pointed to windward, and in the axis of the instrument the sound was about as effective as that of the 8-oz. rocket. But in a direction at right angles to the axis, and still more in the rear of this direction, the syren...  Proceedings of the Royal Society of London - Side 244av Royal Society (Great Britain) - 1878Uten tilgangsbegrensning - Om denne boken
 | Royal Society (Great Britain) - 1878 - 656 sider
...in the axis of the instrument the sound was about as effective as that of the 8-oz. rocket. But in a direction at right angles to the axis, and still...the principal comparative trials made between the guncotton rocket and other fog-signals ; but they are not the only ones. On the 2nd of August, 1877,... | |
 | 1878 - 802 sider
...as at the South Foreland, but by compressed air, beginning with 40 pounds and ending with 30 pounds pressure. The trumpet was pointed to windward, and...instrument the sound was about as effective as that of the 8-ounce rocket. But in a direction at right angles to the axis, and still more in the rear of this... | |
 | 1878 - 552 sider
...pressure, as at the South Foreland, but by compressed air, beginning with 40 Ibs. and ending with 30 lb. pressure. The trumpet was pointed to windward, and...instrument the sound was about as effective as that of the 8 oz. rocket. But in a direction at right angles to the axis, and still more in the rear of this direction,... | |
 | John Tyndall - 1879 - 522 sider
...powder. The performance of the syren was, on the whole, less satisfactory than that of the rocket. The instrument was worked, not by steam of 70 Ibs....8-oz. rocket. But in a direction at right angles to the axis, and still more in the rear of this direction, the syren fell very sensibly behind even the... | |
 | Royal institution of Great Britain - 1879 - 724 sider
...the whole, less satisfactory than that of the rocket. The instrument was worked, not by steam of 'i 0 Ibs. pressure, as at the South Foreland, but by compressed...8-oz. rocket. But in a direction at right angles to the axis, and still more in the rear of this direction, the syren fell very sensibly behind even the... | |
 | Royal Institution of Great Britain - 1879 - 696 sider
...pressure, as at the South Foreland, but by compressed air, beginning with 40 lbs. and ending with 30 lbs. pressure. The trumpet was pointed to windward, and...8-oz. rocket. But in a direction at right angles to the axis, and still more in the rear of this direction, the syren fell very sensibly behind even the... | |
 | Royal Institution of Great Britain - 1879 - 698 sider
...pressure, as at the South Foreland, but by compressed air, beginning with 40 lbs. and ending with 30 lbs. pressure. The trumpet was pointed to windward, and...as effective as that of the 8-oz. rocket. But in a 1878.] on Recent Experiments on Fog-signals. 555 direction at right angles to the axis, and still more... | |
 | John Tyndall - 1892 - 482 sider
...pressure, as at the South Foreland, but by compressed air, beginning with 40 lbs. and ending with 30 lbs. pressure. The trumpet was pointed to windward, and...8-oz. rocket. But in a direction at right angles to the axis, and still more in the rear of this direction, the syren fell very sensibly "behind even the... | |
 | John Tyndall - 1896 - 574 sider
...pressure, as at the South Foreland, but by compressed air, beginning with 40 lbs. and ending with 30 lbs. pressure. The trumpet was pointed to windward, and...8-oz. rocket. But in a direction at right angles to the axis, and still more in the rear of this direction, the syren fell very sensibly behind even the... | |
 | 1905 - 524 sider
...pressure, as at the South Foreland, but by compressed air, beginning with 40 Ibs. and ending with 80 Ibs. pressure. The trumpet was pointed to windward,...8-oz. rocket. But in a direction at right angles to the axis, and still more in the rear of this direction, the syren fell very sensibly behind even the... | |
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