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,
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]
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]
| © Collections Trust 2002. You may freely download this page for non-profit use, but must acknowledge Collections Trust (formerly MDA) & the Railway Terminology Working Group in any output in which it is used. |
