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Description: | DIRECTIONS FOR USE
Place the horn in the direction that the sound is required to be heard. Turn the handle fairly quickly. If turned too slowly no sound will be obtained.
The regulation blast can be separated and the length of each blast determined by stopping the turning of the handle. At the bottom of the box is a metal plate which can be unscrewed for the purpose of oiling the interior parts this, however, is seldom required.
WHEN UNSCREWING TRUMPET GREAT CARE MUST BE TAKEN NOT TO INJURE THE REED AS THIS IS VERY SENSITIVE>
Sailing vesels under way and vessels towed shall sound by foghorn, at intervals of not more than one minute.
ONE BLAST WHEN ON THE STARBOARD TACK, TWO BLASTS WHEN ON THE PORT TACK AND THREE BLASTS WHEN THE WIND IS ABAFT THE BEAM. (printed with the same instructions in French on a piece of paper gummed to the top of the instrument). MANU unknown. 19th century This this Norwegian pattern foghorn is based on a trumpet organ pipe. It has a pair of bellows worked by turning a handle that works a crank that squeezes the bellows in turn producing a fairly steady stream of air. This stream is further smoothed by passing it into a leather windchest whose pressure is maintained by a strong steel spring. | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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