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]
0-9,
A,
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D,
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F,
G,
H,
I,
J,
K,
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M,
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R,
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T,
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Z,
[Contents]
oak block (rail fastening)
Scope note required.
Literary warrant required.
Plural form: oak blocks
USE wood key
CL Track and track components
BT rail key
oak key
Key made from oak, hammered in between the rail and chair to hold bullhead
rail firm in the chair.
Warrant: National Railway Museum
Plural form: oak keys
USE wood key
CL Track and track components
BT rail key
observation car
A coach specially constructed with large windows, and end windows or open
balcony, normally running as the last vehicle in a train, to provide passengers
with the best possible views.
Warrant: The Railway Dictionary, An A-Z of
Railway Terminology, Alan A Jackson, Alan Sutton Publishing, 1996
Plural form: observation cars
CL Vehicles and vehicle components
BT <passenger carriages by function>
obtuse crossing
An assembly to permit the passage of wheel flanges where two rails
intersect at an obtuse angle.The element in junctionwork where the intersecting
running rails cross one another at an obtuse angle.
Warrant: Railtrack
Group Standard Warrant: British Railway Track: Design, Construction and
Maintenance, C L Heeler (Ed, The Permanent Way Institution, 5th Edition, 1979
p82
Plural form: obtuse crossings
CL Track and track components
BT crossing (track sub-assembly)
occupation box
The box containing the intermediate occupation key, on the Great Western
Railway.
Warrant: Ray Towell, Curator of Operations, National Railway
Museum
Plural form: occupation boxes
CL Control and communications
BT <occupation protection equipment>
occupation bridge
A bridge carrying a private road which pre-existed the railway.
Warrant: Railtrack Jargon Buster, 1999
Plural form: occupation bridges
CL Built works and components
BT <bridges by origin>
occupation crossing
A level crossing which carries a private road to farm, factory etc.
Warrant: Railtrack Jargon Buster, 1999
Plural form: occupation crossings
USE occupation level crossing
CL Control and communications
BT <level crossings by type>
occupation level crossing
A private level crossing which gives access between premises and a public
highway or between land/premises under common occupation but divided by the
railway line.
Warrant: The History & Development of Railway Signalling
in the British Isles, Friends of the National Railway Museum
Plural form: occupation level crossings
UF occupation crossing
CL Control and communications
BT <level crossings by type>
<occupation protection equipment>
Equipment used to protect trains, staff, and equipment occupying the block
section for engineering, shunting or similar purposes.
Plural form: <occupation protection equipment>
CL Control and communications
BT <block system working>
NT electric occupation key
NT engine shunting voucher
NT engineering token
NT lockout system equipment
NT occupation box
NT patrolmans lockout device
OCS panel
A type of route setting control panel having one switch (or other device)
to control each route. Warrant: The History of Railway Signalling, Friends of
the National Railway Museum
Plural form: OCS panels
USE one control switch panel
CL Control and communications
BT control panel
officers saloon
A railway vehicle for the use of railway officials.
Literary warrant
required.
Plural form: officers saloons
CL Vehicles and vehicle components
BT <personnel transport and accommodation>
RT engineers saloon
offside cab door close control
Scope note required.
Literary warrant required.
Plural form: offside cab door close controls
CL Vehicles and vehicle components
BT <door controls>
<off-track motive power>
Any mobile motive power source, not running on rails, used for moving
railway vehicles.
Plural form: <off-track motive power>
CL Vehicles and vehicle components
BT vehicle
NT <animal motive power>
NT <mechanical off-track motive power>
OHLM inspection car
A railway vehicle used for overhead line inspections.
Warrant:
Departmental Coaching Stock, Roger Butcher & Peter Fox, Platform 5
Publishing Ltd, 3rd edition, 1987
Plural form: OHLM inspection cars
CL Vehicles and vehicle components
BT inspection vehicle
oil axle box
Scope note required.
Literary warrant required.
Plural form: oil axle boxes
USE oil axlebox
CL Vehicles and vehicle components
BT axlebox
oil axlebox
Scope note required.
Literary warrant required.
Plural form: oil axleboxes
UF oil axle box
CL Vehicles and vehicle components
BT axlebox
oil burner
Scope note required.
Literary warrant required.
Plural form: oil burners
CL Vehicles and vehicle components
BT liquid fuel burner
NT single-jet Unolco oil burner
oil dispenser
A container used to carry oil and to apply it to any areas requiring
lubrication.
Literary warrant required.
Plural form: oil dispensers
CL Tools and equipment
BT lubrication equipment
NT oil feeder can
NT oil jug
oil engined locomotive
A locomotive driven by an internal combustion engine which burns oil.
Warrant: Modern Railway Traction
Plural form: oil engine locomotives
CL Vehicles and vehicle components
BT <compression ignition engined locomotives>
NT crude oil engined locomotive
NT fuel oil engined locomotive
NT heavy oil engined locomotive
NT Hornsby-Akroyd engined locomotive
oil feeder can
A long thin container used to carry oil and for applying it to areas
requiring lubrication where access is limited.
Literary warrant required.
Plural form: oil feeder cans
CL Tools and equipment
BT oil dispenser
oil filter
Scope note required.
Literary warrant required.
Plural form: oil filters
CL Vehicles and vehicle components
BT lubrication component
oil fired locomotive
A steam locomotive with a boiler that is heated with an oil burning device.
Literary warrant required.
Plural form: oil fired locomotives
CL Vehicles and vehicle components
BT <steam locomotives by fuel>
oil jug
An open topped container used to carry and dispense oil.
Literary
warrant required.
Plural form: oil jugs
CL Tools and equipment
BT oil dispenser
oil pad
An oiled pad for lubrication of the axle bearing in the axle box.
Warrant: Lexique General de Termes Ferroviares, Union Internationale des Chemins
de Fer, 1975
Plural form: oil pads
CL Vehicles and vehicle components
BT lubrication component
RT axlebox
oil tank wagon
A railway vehicle dedicated to the carriage of fuel oil.
Literary
warrant required.
Plural form: oil tank wagons
CL Vehicles and vehicle components
BT <liquid fuel and lubricant carrying vehicles>
RT oil tank wagon (departmental)
oil tank wagon (departmental)
A tank wagon used for the carriage of oil intended for railway use.
Literary warrant required.
Plural form: oil tank wagons (departmental)
CL Vehicles and vehicle components
BT <vehicles for stores and consumables>
RT oil tank wagon
oil tank (locomotive)
Scope note required.
Warrant: Great Western Railway Drawing Registers
Plural form: oil tanks
CL Vehicles and vehicle components
BT <fuel storage components>
oil trimming
A woollen wick held in a wire frame feeding oil by capillary action.
Warrant: Locomotives, their construction, maintenance and operation, A Morton
Bell, Virtue & Co Ltd, 1946
Plural form: oil trimmings
UF trimming
CL Vehicles and vehicle components
BT lubrication component
NT standard trimming
NT worsted oil trimming
omnibus wagon
A railway vehicle dedicated to the carriage of omnibuses.
Literary
warrant required.
Plural form: omnibus wagons
CL Vehicles and vehicle components
BT <road vehicle carrying stock>
on/off indicator
An electrical instrument in the signalbox indicating the position of signal
arms.
Warrant: Ray Towell, Curator of Operations, National Railway Museum
Plural form: on/off indicators
CL Control and communications
BT <signal confirmation>
one control switch panel
A type of route setting control panel having one switch (or other device)
to control each route.
Warrant: The History of Railway Signalling, Friends
of the National Railway Museum
Plural form: one control switch panels
UF OCS panel
CL Control and communications
BT control panel
one person operated train
A train controlled entirely by its driver, without any guard or conductor.
Warrant: The Railway Dictionary, An A-Z of Railway Terminology, Alan A Jackson,
Alan Sutton Publishing, 1996
Plural form: one person operated trains
CL Vehicles and vehicle components
BT <trains by operation>
on track self propelled tamping machine
An on-track machine used to compact the ballast under the sleepers.
Officially described thus in British Railway Track but extensively referred to
as a 'tamper' in the subsequent text.
Warrant: British Railway Track:
Design, Construction and Maintenance, C L Heeler (Ed), The Permanent Way
Institution, 5th Edition, 1993 p219
Plural form: on-track self-propelled tamping machines
USE tamper (vehicle)
CL Vehicles and vehicle components
BT <track maintenance vehicles>
<on-train automatic train protection equipment>
Scope note required.
Plural form: <on-train automatic train protection equipment>
CL Vehicles and vehicle components
BT vehicle component
NT ATP by-pass switch
NT automatic train protection
NT code trip valve
NT <on-train electro-magnetic brake tripping devices>
NT <on-train mechanical brake tripping devices>
<on-train communications equipment>
Inbuilt equipment for transmitting verbal announcements to passengers, or
messages between train operating staff, either verbally or by bell codes, etc.
For flags, handlamps, whistles, etc. used for communication between guard and
driver, see 'guards equipment' in the 'Tools and equipments' Class.
Plural form: <on-train communications equipment>
CL Vehicles and vehicle components
BT <driving and control components>
NT communication system
NT passenger emergency communication
NT <driver/guard communication systems>
NT <train staff/passenger communication>
<on-train electro-magnetic brake tripping devices>
Scope note required.
Plural form: <on-train electro-magnetic brake tripping devices>
CL Vehicles and vehicle components
BT <on-train automatic train protection equipment>
<on-train mechanical brake tripping devices>
Scope note required.
Plural form: <on-train mechanical brake tripping devices>
CL Vehicles and vehicle components
BT <on-train automatic train protection equipment>
NT trip lever
NT trip valve
NT tripcock
NT tripcock isolating cock
NT tripcock isolating switch
NT tripcock reset
<on-train signals>
Discs, lamps, boards, etc. carried on the front of the train to indicate to
the signalman its type and in some circumstances its route or at the rear of the
train to indicate that it has arrived complete or to convey other information to
the signalman (e.g. train following board).
Plural form: <on-train signals>
CL Control and communications
BT <visual signals>
NT brake van side and tail lamp
NT headcode disc
NT headlamp
NT locomotive headlamp
NT side lamp
NT side lampcase
NT sidelamp
NT tail lamp
RT <fixed head and tail lamps>
<on-train tools and equipment>
All tools and equipment used by railway employees working on trains in the
performance of their duties. Warrant: National Railway Museum
Plural form: <on-train tools and equipment>
CL Tools and equipment
BT <railway operating tools and equipment>
NT carriage gas key
NT carriage key
NT catering staff equipment
NT corridor key
NT drivers equipment
NT firemans equipment
NT footwarmer
NT gas key
NT guards equipment
NT gunpowder van boot
NT pilotmans armband
NT saloon and corridor key
NT ticket/fare collectors equipment
open carriage
A passenger coach with a centre gangway with seats either side and no
compartments.
Warrant: The Railway Dictionary, An A-Z of Railway
Terminology, Alan A Jackson, Alan Sutton Publishing, 1996
Plural form: open carriages
UF open (coach)
CL Vehicles and vehicle components
BT <passenger carriages by internal layout/facilities>
open carriage truck
An open railway vehicle dedicated to the conveyance of horse drawn road
carriages. Latterly the term continued to be used for similar vehicles designed
for the conveyance of motor cars, etc.
Literary warrant required.
Plural form: open carriage trucks
CL Vehicles and vehicle components
BT carriage truck
open container
A freight container without a roof.
Literary warrant required.
Plural form: open containers
CL Vehicles and vehicle components
BT freight container
open crossing
A level crossing that has no barriers, gates or road traffic light signals
and which is protected only by signs.
Warrant: The History &
Development of Railway Signalling in the British Isles, Friends of the National
Railway Museum
Plural form: open crossings
USE open level crossing
CL Control and communications
BT <level crossings by operation>
open goods wagon
An open railway wagon for the conveyance of general merchandise which does
not require protection from the elements or can be adequately protected by a
wagon sheet.
Literary warrant required.
Plural form: open goods wagons
UF fruit wagon (open merchendise)
UF open merchandise wagon
CL Vehicles and vehicle components
BT general merchandise wagon
open level crossing
An unmanned level crossing without barriers, gates or road traffic warning
lights and equipped only with signs.
Warrant: Railtrack London & North
Eastern, A Glossary of Railway Terms, October 1998
Plural form: open level crossings
UF open crossing
CL Control and communications
BT <level crossings by operation>
RT ungated level crossing
open merchandise wagon
An open railway wagon for the conveyance of general merchandise which does
not require protection from the elements or can be adequately protected by a
wagon sheet.
Literary warrant required.
Plural form: open merchandise wagons
USE open goods wagon
CL Vehicles and vehicle components
BT general merchandise wagon
NT shock absorbing wagon
NT tarpaulin bar wagon
open section detonator
Scope note required.
Literary warrant required.
Plural form: open section detonators
CL Control and communications
BT detonator
open spoked wheel
Scope note required.
Literary warrant required.
Plural form: open spoked wheels
CL Vehicles and vehicle components
BT spoked wheel
open vehicle
A railway vehicle without a roof.
Literary warrant required.
Plural form: open vehicles
CL Vehicles and vehicle components
BT <rolling stock by form>
NT open wagon
NT <open vehicles by height>
NT <open vehicles by shape of load space>
<open vehicles by height>
Scope note required.
Plural form: <open vehicles by height>
CL Vehicles and vehicle components
BT open vehicle
NT flat wagon
NT high sided wagon
NT low sided wagon
NT medium sided wagon
<open vehicles by shape of load space>
Scope note required.
Plural form: <open vehicles by shape of load space>
CL Vehicles and vehicle components
BT open vehicle
NT hopper wagon
open wagon
A general goods vehicle without a roof.
Warrant: Lexique General de
Termes Ferroviares, Union Internationale des Chemins de Fer, 1975
Plural form: open wagons
CL Vehicles and vehicle components
BT open vehicle
open (coach)
A passenger coach without compartments but with a centre gangway and seats
either side.
Warrant: The Railway Dictionary, An A-Z of Railway
Terminology, Alan A Jackson, Alan Sutton Publishing, 1996
Plural form: opens (coaches)
USE open carriage
CL Vehicles and vehicle components
BT <passenger carriages by internal layout/facilities>
operating cab
Scope note required.
Literary warrant required.
Plural form: operating cabs
CL Vehicles and vehicle components
BT cab
operating rod (regulator)
A rod running through, or along the outside of the boiler, connecting the
operating handle in the cab to the regulator valve.
Warrant: Great Western
Railway Drawing Registers
Plural form: operating rods (regulator)
USE regulator operating rod
CL Vehicles and vehicle components
BT regulator component
operating train
Scope note required.
Literary warrant required.
Plural form: operating trains
CL Vehicles and vehicle components
BT <trains by loading>
operators control unit
The control system for a signalman in a train describer system, normally
consisting of a keyboard and VDU or other digital display.
Warrant: The
History & Development of Railway Signalling in the British Isles, Friends of
the National Railway Museum
Plural form: operators control units
CL Control and communications
BT <central control>
operators vigilance alarm test
Scope note required.
Literary warrant required.
Plural form: operators vigilance alarm tests
CL Vehicles and vehicle components
BT vigilance device
optical locating bar
Scope note required.
Literary warrant required.
Plural form: optical locating bars
CL Unidentified
BT <unidentified terms>
ordinary return ticket
Scope note required.
Literary warrant required.
Plural form: ordinary return tickets
USE ordinary ticket
PLUS return ticket
CL Commercial records and equipment
BT <examples of factored ticket types>
ordinary ticket
A ticket offered at the regular fare that may be used for travel on any
suitable train.
Literary warrant required.
Plural form: ordinary tickets
UF ordinary return ticket
CL Commercial records and equipment
BT <travel tickets by discount, etc.>
Orenstein valve gear
Scope note required.
Warrant: Orenstein and Koppel Patent No. 104045
Plural form: Orenstein valve gear
CL Vehicles and vehicle components
BT valve gear
ornamental locomotive
A locomotive built primarily to be a non-working small outline copy of a
'full size' original.
Literary warrant required.
Plural form: ornamental locomotives
CL Vehicles and vehicle components
BT <locomotives by function>
<other internal combustion locomotives>
Scope note required. Warrant: Modern Railway Traction, Railway
Manufacturers Association, undated
Plural form: <others>
CL Vehicles and vehicle components
BT internal combustion locomotive
<other non-revenue operating stock>
Scope note required.
Plural form: <other non-revenue operating stock>
CL Vehicles and vehicle components
BT <non-revenue operating stock>
NT dandy cart
<other special traffic vehicles>
Scope note required.
Plural form: <other special traffic vehicles>
CL Vehicles and vehicle components
BT <rolling stock by load or function>
NT aeroplane truck
NT brick wagon
NT glass wagon
NT gunpowder van
NT linoleum wagon
NT manure wagon
NT provender wagon
outer advanced starter
An additional starting signal in advance of an advanced starter.
Warrant: Ray Towell, Curator of Operations, National Railway Museum
Plural form: outer advanced starters
CL Control and communications
BT starting signal
outer home signal
An additional home signal situated in the rear of the home signal (which is
then known as the inner home signal). The outer home signal marks the beginning
of station limits.
Warrant: Two Centuries of Railway Signalling, G
Kichenside & A Williams, Oxford Publishing Company, 1998
Plural form: inner home signals
CL Control and communications
BT home signal
outside connecting rod
A connecting rod providing the drive from an outside cylinder to the crank
pin on the wheel.
Warrant: Steam Locomotion, E C Poultney & C R H
Simpson, Caxton Publishing Company, 1951
Plural form: outside connecting rods
CL Vehicles and vehicle components
BT connecting rod
outside cylinder locomotive
A steam locomotive with cylinders outside the frames.
Warrant: British
Railways Standard Steam Locomotives, E S Cox, Ian Allan, 1966
Plural form: outside cylinder locomotives
CL Vehicles and vehicle components
BT <piston driven steam locomotives>
overbridge
bridge which crosses over the railway.
Warrant: Railtrack Jargon
Buster, 1999
Plural form: overbridges
CL Built works and components
BT <bridges by relative position>
overhead crossing
A crossover of overhead line equipment at a turnout or crossover.
Warrant: Lexique General de Termes Ferroviares, Union Internationale des Chemins
de Fer, 1975
Plural form: overhead crossings
CL Track and track components
BT overhead line equipment
overhead electric railway
Scope note required.
Literary warrant required.
Plural form: overhead electric railways
CL Railway types
BT overhead railway
overhead electrification vehicle
A railway vehicle dedicated to the carriage of materials and equipment
required for the installation and maintenance of overhead line equipment.
Literary warrant required.
Plural form: overhead electrification vehicles
CL Vehicles and vehicle components
BT <overhead structure maintenance vehicles>
overhead line
Electric traction supply wires suspended over the track for current
collection by trains.
Warrant: Lexique General de Termes Ferroviares, Union
Internationale des Chemins de Fer, 1975
Plural form: overhead lines
CL Track and track components
BT overhead line equipment
overhead line electric railway
An electric railway where current is delivered via an overhead line.
Literary warrant required.
Plural form: overhead line electric railways
CL Railway types
BT electric railway
overhead line equipment
The equipment suspended over the railway for supplying electricity to
electric trains.
Warrant: Railtrack London & North Eastern, A Glossary
of Railway Terms, October 1998
Plural form: overhead line equipment
CL Track and track components
BT <traction electricity supply equipment>
NT cantilever
NT catenary
NT contact wire
NT contenary
NT cross-span wire
NT dropper
NT headspan wire
NT line ear
NT line hanger
NT neutral section
NT overhead crossing
NT overhead line
NT overhead line insulator
NT overhead turnout
NT overhead wire
NT registration arm
NT span wire
NT span wire anchor
NT traction pole
NT traction pole strap
overhead line insulator
A ceramic component supporting overhead electric cables, used because of
its insulating qualities.
Warrant: BR Equipment, D Gibbons, Ian Allan Ltd,
1986
Plural form: overhead line insulators
UF insulator (overhead line)
CL Track and track components
BT overhead line equipment
overhead line maintenance cable drum carrier
A wagon adapted to carry cable drums in such a way that they can be
unrolled from the wagon during overhead line installation, repair or renewal.
Warrant: Departmental Coaching Stock, Roger Butcher & Peter Fox, Platform 5
Publishing Ltd, 3rd edition, 1987
Plural form: overhead line maintenance cable drum carriers
CL Vehicles and vehicle components
BT cable drum carrier
<overhead power collection components>
Vehicle components concerned with the collection of traction current from
overhead wires. For general electrical circuitry, see <electrical circuitry>.
Plural form: <overhead power collection components>
CL Vehicles and vehicle components
BT <power collection components>
NT bow collector
NT pantograph
NT pantograph horn
NT trolley head
RT <electrical circuitry>
overhead railway
A railway predominantly carried above urban streets and buildings on girder
or similar supports.
Warrant: The Liverpool Overhead Railway, C E Box, Ian
Allan Ltd, 1984
Plural form: overhead railways
UF elevated railway
CL Railway types
BT <railways by location>
NT overhead electric railway
RT suburban railway
RT metro
<overhead structure maintenance vehicles>
Railway vehicles dedicated to the carriage of materials and equipment
required for the installation and maintenance of overhead line equipment, etc.
Plural form: <overhead structure maintenance vehicles>
CL Vehicles and vehicle components
BT <service vehicles and on-track plant>
NT electrification equipment vehicle
NT overhead electrification vehicle
NT tower wagon
overhead turnout
The combination of overhead electric power lines, where there is a track
turnout.
Warrant: National Railway Museum
Plural form: overhead turnouts
CL Track and track components
BT overhead line equipment
overhead wire
An electric cable that feeds power to the pantograph of electric
locomotives.
Warrant: BR Equipment, D Gibbons, Ian Allan Ltd, 1986
Plural form: overhead wires
CL Track and track components
BT overhead line equipment
overhead wire collection locomotive
A locomotive which collects its electric power from an overhead wire using
a pantograph, a trolley pole or a bow collector.
Warrant: Electric
Locomotives and Their Development, Henry Greenly
Plural form: overhead wire collection locomotives
CL Vehicles and vehicle components
BT <electric locomotives by current collection>
overlay track circuit
A track circuit which operates within and additionally to another track
circuit. Normally used for detecting the passage of a train past a specific
position.
Warrant: The History of Railway Signalling, Friends of the
National Railway Museum
Plural form: overlay track circuits
CL Control and communications
BT track circuit
overload protection
A power circuit component which isolates the circuit when it detects
currents in excess of the normal operating range.
Warrant: LUL Jargon
Buster
Plural form: overload protections
CL Unattributed
BT <unattributed>
overload trip and test indicator
Scope note required.
Literary warrant required.
Plural form: overload trip and test indicators
CL Vehicles and vehicle components
BT <ancillary gauges and instrumentation>
owners identity plate
Scope note required.
Warrant: Great Western Railway Drawing Registers
Plural form: owners identity plates
CL Vehicles and vehicle components
BT <owners identity plates>
<owners identity plates>
Scope note required.
Plural form: <owners identity plates>
CL Vehicles and vehicle components
BT identity plate
NT allocation plate
NT nameplate
NT number plate
NT owners identity plate
NT ownership plate
owners number plate
Scope note required. Warrant: Great Western Railway Drawing Registers
Plural form: owners number plates
USE number plate
CL Vehicles and vehicle components
BT <owners identity plates>
owners plate
A plate giving ownership details of a private owner wagon, etc.
Plural form: owners plates
USE ownership plate
CL Vehicles and vehicle components
BT <owners identity plates>
<ownership markers>
Scope note required.
Plural form: <ownership markers>
CL Commercial records and equipment
BT <asset management>
NT asset plate
ownership plate
A plate giving ownership details of a private owner wagon, etc.
Literary warrant required.
Plural form: ownership plates
UF owners plate
CL Vehicles and vehicle components
BT <owners identity plates>
RT asset plate
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]
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