IPC 7 English version B61L !A-B61L 29/32

B61L-B61L02932

SECTION B – PERFORMING OPERATIONS; TRANSPORTING

B 61

RAILWAYS

B 61 L

GUIDING RAILWAY TRAFFIC: ENSURING THE SAFETY OF RAILWAY TRAFFIC (power supply lines for electrically propelled vehicles B60M; arrangement of signalling devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; brakes or auxiliary equipment B61H, B61K; point or crossing construction E01B; insulated rail joints E01B 11/54; optical devices in general G02; controlling in general G05; electric communication technique H04)

Note

This subclass covers:

–

devices along the route interacting with trains;

–

signals;

–

operation of points and signals;

–

interlocking;

–

block systems;

–

level crossings.

Subclass Index

DEVICES ALONG THE ROUTE ACTUATED BY, OR ACTING ON, THE TRAIN AT ITS PASSAGE

B61L 1/00, B61L 3/00

RAILWAY SIGNALLING, SWITCHING, BLOCKING, AND INTERLOCKING

Signals

per se, local operation mechanisms; remote control; control by passage of vehicles

B61L 5/00; B61L 7/00; B61L 13/00

Points

local operation mechanisms; remote control; control by passage of vehicles

B61L 5/00; B61L 7/00; B61L 11/00

switching systems of classification yards

B61L 17/00

points and signals interlocking by a single device

B61L 19/00

Scotch-blocks: local operation mechanisms; remote control

B61L 5/00; B61L 7/00

Station blocking

B61L 21/00

TRAFFIC

Central control systems; recording and indicating traffic data; self-signalling

B61L 27/00; B61L 25/00; B61L 15/00

Safety: means concerning railway traffic; protection of road crossings

B61L 23/00; B61L 29/00

ILLUMINATION OF POINTS, FORM SIGNALS, AND GATES

B61L 9/00

Devices along the route controlled by interaction with the vehicle or vehicle train (detonators B61L 5/20; operation of points or signals by passage of the vehicle B61L 11/00, B61L 13/00; central traffic control systems controlled by train B61L 27/04; operation of gates, or gates and signals, by approaching vehicle B61L 29/18)

Electric devices associated with track

mechanically actuated by a part of the vehicle

actuated by deformation of rail; actuated by vibration in rail

magnetically actuated; electrostatically actuated

actuated by electromagnetic radiation; actuated by particle radiation

Electric devices associated with overhead trolley wires

Devices for indicating the passing of the end of the vehicle or vehicle train

Devices for counting axles; Devices for counting vehicles (counting moving objects in general G06M)

Railway track circuits (automatically-operated track circuits specially adapted for section blocking for controlling traffic B61L 23/00; rail joints E01B 11/00)

Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning

Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal

at selected places along the route, e.g. intermittent control

controlling mechanically

controlling by electromagnetic or particle radiation, e.g. by light beam (using radio waves B61L 3/12)

controlling electrically

using current passing between devices along the route and devices on the vehicle train

using magnetic or electrostatic induction; using radio waves

to cut-off the power supply to traction motors of electrically-propelled vehicles

Continuous control along the route

using electric current passing between devices along the route and devices on the vehicle or vehicle train

employing different frequencies or coded pulse groups

using magnetic or electrostatic induction; using electromagnetic radiation

employing different frequencies or coded pulse groups

Local operating mechanisms for points or track-mounted scotch-blocks (track-mounted scotch-blocks per se B61K); Visible or audible signals; Local operating mechanisms for visible or audible signals (B61L 11/00 takes precedence)

Mechanical devices for operating points or scotch-blocks

Fluid-pressure devices for operating points or scotch-blocks

Electric devices for operating points or scotch-blocks

Underground actuating arrangements, e.g. for tramways

Locking mechanisms for points; Means for indicating the setting of points

Visible signals

Form signals, e.g. semaphore arms

Local operating mechanisms for form signals

Light signals; Mechanisms associated therewith, e.g. blinders

Audible signals, e.g. detonator

Devices for initiating the release of detonators in a certain position of a signal

Replacement of detonators

Remote control of local operating means for points, signals, or track-mounted scotch-blocks (B61L 11/00 takes precedence; interlocking arrangements B61L 19/00)

using mechanical transmission, e.g. wire, lever

using fluid-pressure transmission

using electrical transmission

Circuitry

for light signals, e.g. for supervision, back- signalling

Illumination specially adapted for points, form signals, or gates (lighting in general F21)

non-electric

electric

11/

Operation of points from the vehicle or by the passage of the vehicle

11/

using mechanical interaction between vehicle and track

11/

Trailable point locks

11/

with fluid-pressure transmission

11/

using electrical or magnetic interaction between vehicle and track

13/

Operation of signals from the vehicle or by the passage of the vehicle

13/

using mechanical interaction between vehicle and track

13/

using electrical or magnetic interaction between vehicle and track

15/

Indicators provided on the vehicle or vehicle train for signalling purposes

15/

Head or tail indicators, e.g. light

17/

Switching systems for classification yards (rail brakes B61K)

17/

Details, e.g. indicating degree of track filling

19/

Arrangements for interlocking between points and signals by means of a single interlocking device (station block arrangements B61L 21/00)

19/

Interlocking devices having mechanical or fluid-pressure operation

19/

Details, e.g. hand lever, back-signalling device

19/

Interlocking devices having electrical operation

19/

Special arrangements for power supply for interlocking devices

19/

with mechanical locks

19/

Details

19/

with electrical locks

19/

Details

21/

Station blocking between signal boxes in one yard (interlocking between points and signals by means of a single interlocking device B61L 19/00)

21/

Mechanical locking and release of the route; Repeat locks; Coupling of semaphores

21/

Electrical locking and release of the route; Electrical repeat locks

21/

Vehicle-on-line indication; Monitoring locking and release of the route

21/

Order transmission and reception arrangements for giving or withholding permission

21/

Arrangements for trains which are closely following one another (automatic central traffic control systems B61L 27/04)

23/

Control, warning or like safety means along the route or between vehicles or vehicle trains [4]

23/

for indicating along the route the failure of brakes

23/

for monitoring the mechanical state of the route

23/

for warning men working on the route

23/

for controlling traffic in one direction only (station blocking between signal boxes in one yard B61L 21/00)

23/

manually operated

23/

partly operated by train

23/

automatically operated

23/

Track circuits specially adapted for section blocking

23/

specially adapted for changing lengths of track sections in dependence upon speed and traffic density

23/

with transmission of instructions to stations along the route

23/

for controlling traffic in two directions over the same pair of rails (station blocking between signal boxes in one yard B61L 21/00)

23/

using token systems, e.g. train staffs, tablets

23/

with means for actuating signals from the vehicle or by passage of the vehicle

23/

using non-automatic blocking from a place along the route

23/

using automatic section blocking

23/

with provision for the blocking of passing sidings

23/

Control, warning or like safety means indicating the distance between vehicles or vehicle trains by the transmission of signals therebetween [4]

25/

Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus

25/

Indicating or recording positions or identities of vehicles or vehicle trains

25/

Indicating or recording train identities

25/

Indicating or recording the setting of track apparatus, e.g. of points, of signals

25/

Diagrammatic displays

27/

Central traffic control systems

27/

Manual systems

27/

Automatic systems, e.g. controlled by train; Change-over to manual control

29/

Safety means for rail/road crossing traffic

29/

Guards or obstacles for preventing access to the route (cattle guards connected to the permanent way E01B 17/00)

29/

Gates for level crossings

29/

yielding to vehicles in one direction but operated in a different direction

29/

Operation of gates; Combined operation of gates and signals

29/

Means for securing gates in their desired position

29/

Manual operation

29/

mechanically

29/

electrically

29/

Operation by approaching rail vehicle or rail vehicle train

29/

mechanically

29/

electrically

29/

Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning

29/

mechanically operated

29/

electrically operated

29/

Supervision, e.g. monitoring arrangements

29/

Timing, e.g. advance warning of approaching train