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A retrieval lanyard is a nylon webbing lanyard used to raise and lower workers into confined spaces, such as storage tanks. An activation lanyard is a lanyard used to fire an artillery piece or arm the fuze on a bomb leaving an aircraft. [5] A deactivation lanyard is a dead man's switch, where pulling a lanyard free will disable a dangerous device.
Their Tornado 2000 whistle is capable of easily reaching 122 decibels. J Hudson & Co was founded in the 1870s in Birmingham by Joseph Hudson (1848–1930) and his brother James Hudson (1850–1889). The company became a manufacturer of whistles and continues as Acme Whistles. Acme is the world's largest and most famous producer of whistles.
Dowler also made button whistles: escargot-type whistle with metal buttons or coins at the sides of the barrel. Though Dowler is mostly known such models, rare models attributed to him include the Hiat Registered Design of 1894: a combination of an escargot whistle with button sides and a beaufort with mouthpiece, sometimes referred to as Crest ...
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A boatswain's call, pipe, or bosun's whistle is a pipe or a non-diaphragm type whistle used on naval ships by a boatswain. The pipe consists of a narrow tube (the gun) which directs air over a metal sphere (the buoy) with a hole in the top. The player opens and closes the hand over the hole to change the pitch.
Similar to pea whistles, samba whistles have a small ball or dowel to create the same sort of sound, but often also have two extensions either side of the chamber. None, one or both of these can be blocked to create a "tri-tone" effect. The apito de samba is a traditional Portuguese example of a samba whistle.
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