- semaphore signal arm
- Железнодорожный термин: крыло семафора
Универсальный англо-русский словарь. Академик.ру. 2011.
semaphore signal arm
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Railway semaphore signal — One of the earliest forms of fixed railway signal is the semaphore. These signals display their different indications to train drivers by changing the angle of inclination of a pivoted arm . Semaphore signals were patented in the early 1840s by… … Wikipedia
Signal passed at danger — (SPAD), in railway terminology, describes an event where a train has run beyond its allocated signal block without authority, as indicated by a lineside signal showing danger (typically a red light). It is a term primarily used within the British … Wikipedia
Semaphore line — This article is about the communication system using towers with pivoting shutters. For other uses, see Semaphore (disambiguation). For the now closed railway in Adelaide, Australia, see Semaphore railway line, Adelaide. A Chappe telegraph at… … Wikipedia
semaphore — /ˈsɛməfɔ / (say semuhfaw) noun 1. an apparatus for conveying information by means of signals. 2. a system of signalling by hand, in which a flag is held in each hand at arm s length in various positions. –verb (semaphored, semaphoring) –verb (t)… …
semaphore — n. & v. n. 1 Mil. etc. a system of sending messages by holding the arms or two flags in certain positions according to an alphabetic code. 2 a signalling apparatus consisting of a post with a movable arm or arms, lanterns, etc., for use (esp. on… … Useful english dictionary
Railway signal — Not to be confused with Railway signalling. A signal is a mechanical or electrical device erected beside a railway line to pass information relating to the state of the line ahead to train/engine drivers. The driver interprets the signal s… … Wikipedia
Flag semaphore — is a system for conveying information at a distance by means of visual signals with hand held flags, rods, disks, paddles, or occasionally bare or gloved hands. Information is encoded by the position of the flags; it is read when the flag is in a … Wikipedia
Distress signal — Call for help redirects here. For the TV show, see Call for Help. A distress signal is an internationally recognized means for obtaining help. Distress signals take the form of or are commonly made by using radio signals, displaying a visually… … Wikipedia
Trafficators — are semaphore signals which, when operated, protrude from the bodywork of a motor vehicle to indicate its intention to turn in the direction indicated by the pointing signal. Trafficators are often located at the door pillar.HistoryThey first… … Wikipedia
Australian railway signalling — Just as the railways of Australia has suffered issues from incompatible rail gauges, the different states have tended to go their own way regarding railway signalling practice.New South WalesThe signalling system in New South Wales consists… … Wikipedia
Railway signalling — Not to be confused with Railway signal. A gantry of British semaphore signals seen from the cab of a steam locomotive Railway signalling is a system used to control railway traffic safely, essentially to prevent trains from colliding. Being… … Wikipedia
