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Semaphore Signal

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Semaphore Signal
A signal where the indication is given by a movable arm or board.
Septuple ...

 


Semaphore signals were patented in the 1840s by John James Stevens, and soon became the most widely-used form of mechanical signal, although they are now decreasing in number.

Semaphore signal
Paddle Wheel
Narrow-gauge locomotive with driving boxes outside of the wheels ...

Semaphore signal
A trackside signal that employed a swivelling moving arm, operated mechanically. Traditionally these were worked manually - a guy in a signal box pulled a lever, thereby pulling the signal arm up or down.

A semaphore signal where the indication is given by a rotatable disc.
Displacement Lubricator ...

Paddle
A semaphore signal.
Palace
Caboose.
Pantograph
The collapsible, adjustable, "floating" structure which provides electrical contact with overhead wires on an electric locomotive, so-called for its pivoting capability.

Bracket signal : A semaphore signal array with two or more arms indicating different routes ahead. Often termed a junction signal.
Branch : A portion of railway that diverges from the main line to serve a town or industry.

(UK: Rail Anchor.)UoS Approach Control See Route Signalling Page Approach Track See Route Signalling Page Arm Repeater An electrical indicator which shows the position of a semaphore signal arm to the controlling signalman.

Semaphore Signal
RAILWAYS. The type of old-fashioned signal where a hinged arm moves between two positions so as to indicate the signal's state.

Semaphore Signal A signal that uses a moving arm to indicate the state of the line ahead. Having the signal arm point straight out usually indicates that the next section contains a train.

Mechanical semaphore signal: A signal in which the aspect is conveyed by moving an arm.
Merry-go-round (MGR) train (UK): coal train running between a coal mine and a power station, loading and unloading without stopping or shunting.

A color light, color position light, or semaphore signal without a number plate, "P" marker, "APP" marker, "C" marker, or "G" marker that conveys stop as its most restrictive indication.
Absorption ...

In the days of Conrail before NS took over this portion, all trains operating on Conrail trackage though here also had to get either verbal permission over the radio or a hand signal from the Switchtender in addition to the semaphore signal.

See also: Semaphore, Consist, Signal, Engine, Locomotive