fog signal

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fog signal

n
(Railways) a signal used to warn railway engine drivers in fog, consisting of a detonator placed on the line
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Translations

fog signal

n (Rail) → segnale m da nebbia
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
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References in periodicals archive ?
In terms of navigation component, the market has been categorized into buoys, lighthouses, and others (fog signals, day beacons).
Multiple temperature data and FOG signals have been collected.
His father was himself an inventor in the shipping field, with an improved anchor, a lifesaving device and a system of sound fog signals to prevent collision at sea.
The van contained a box of railway fog signals, which can be volatile if handled incorrectly and officers would urge anyone who has any information about this stolen vehicle or its contents to contact Constable Andy Passey on 0151 777 6843 or Crimestoppers anonymously on 0800 555 111.
It is believed they took a box of detonators, used as fog signals on the rail network, from a nearby depot.
Sergeant Wayne Eley said: "These fog signals are specialist equipment that are of no use or value to those who have stolen them.
The Alaska Rainbow was not sounding fog signals, as required by international regulations.
There are examples of Kynoch and Eley cartridge drawings, load cards and order books for everything from war rockets to fog signals dating back to the late 1800s.
The devices, known as Fog Signals, are placed 100 yards apart when work is under way.
Photo: Typical anatomy of an 1870s lighthouse saw little change, apart from updated fog signals, over next half-century.