0-9, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, [Contents]

Q train
A special train with British Transport Police on board used to combat trespass and vandalism.
Warrant: Railtrack London & North Eastern, A Glossary of Railway Terms, October 1998
Plural form: Q trains

CL Vehicles and vehicle components
BT passenger train

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Q type relay
A plug-in relay designed by Westinghouse to fail-safe signalling standards.
Warrant: LUL Jargon Buster
Plural form: Q type relays

CL Control and communications
BT Automatic Train Protection (ATP) equipment
RT relay

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quadricycle
A four wheeled pedal or lever operated light railway vehicle used by track maintenance staff.
Literary warrant required.
Plural form: quadricycles

CL Vehicles and vehicle components
BT <personnel transport>

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qualified take over certificate
The certificate issued by the Project Manager at the time that the train or works or a portion thereof is accepted by the Project Manager as fit for service subject to the qualifications detailed on the certificate.
Warrant: LUL Jargon Buster
Plural form: qualified take over certificates

CL Commercial records and equipment
BT <administration>

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quarry railway
Scope note required.
Warrant: The Cliffe Hill Mineral Railway, M H Billington, Plateway Press, 2nd Edition, 1997
Plural form: quarry railways

CL Railway types
BT mineral railway
NT chalk quarry railway
NT gravel pit railway
NT limestone quarry railway
NT sand railway
NT slate quarry railway
NT stone quarry railway

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quarter light
A fixed light flanking the doors of compartment stock. Also found in open saloons with doors opening directly into the seating area.
Warrant: The Railway Dictionary, An A-Z of Railway Terminology, Alan A Jackson, Alan Sutton Publishing, 1996
Plural form: quarter lights

CL Vehicles and vehicle components
BT light (vehicle window)

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quarter light pillar
The vertical pillar forming the side of the quarter light furthest from the door opening.
Warrant: Railway Carriages and Wagons: Their design and construction (reprinted articles from The Railway Engineer 1892-7), Sidney Stone, republished by Peter Kay, circa 1997.
Plural form: quarter light pillars

CL Vehicles and vehicle components
BT window component (vehicle)
RT standing pillar

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quick acting triple valve
Three function valve which applies the brake, holds the application at a constant level and releases and recharges the brake system, which operates rapidly on emergency application.
Warrant: Lexique General de Termes Ferroviares, Union Internationale des Chemins de Fer, 1975
Plural form: quick acting triple valves

CL Vehicles and vehicle components
BT <brake controls>

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quick-release hook
Scope note required.
Literary warrant required.
Plural form: quick-release hooks

CL Vehicles and vehicle components
BT drawbar hook

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quick-release valve
Scope note required.
Literary warrant required.
Plural form: quick-release valves

CL Vehicles and vehicle components
BT <unattributed vehicle components>

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quill drive
A form of drive for electric locomotives which uses a hollow sleeve or quill connected to the driving wheel by springs.
Warrant: The Railway Dictionary, An A-Z of Railway Terminology, Alan A Jackson, Alan Sutton Publishing, 1996
Plural form: quill drives

CL Vehicles and vehicle components
BT <power transmission components>

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0-9, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, [Contents]