B
SECTION B — PERFORMING OPERATIONS; TRANSPORTING
 B01 - 
B07
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION
Method
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/LIQUID OR SOLID/GAS SEPARATION
Method
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/SOLID SEPARATION
Method
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB07B
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
Apparatus
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB04B, B04C
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
  
TRANSPORTING
 B61
RAILWAYS
 B61

Note(s)

In this class, the following expression is used with the meaning indicated:

  • "railway systems" covers:
    1. systems in which trains or individual passenger vehicles or load carriers run on, or are guided by, ground or elevated tracks defined by rails, ropes, cables, or other guiding elements for wheels, rollers, or sliding anti-friction devices (permanently attached to a continuous traction element B65G 17/00);
    2. systems in which carriers or impellers for persons or loads are attached to, e.g. suspended from, a guided traction rope or cable which determines their path of movement (chain conveyers, scraper conveyers B65G 17/00, B65G 19/00);
    3. power and free systems of either of the above types in which vehicles, load-carriers, or loads may be selectively coupled to, or uncoupled from, continuous traction members, e.g. cables, chains.

 B61L
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)
 B61L

Note(s)

This subclass covers:

  • devices along the route interacting with trains;
  • signals;
  • operation of points and signals;
  • interlocking;
  • block systems;
  • level crossings.

 B61L
Subclass index
DEVICES ALONG THE ROUTE ACTUATED BY, OR ACTING ON, THE TRAIN AT ITS PASSAGE 1/00, 3/00
RAILWAY SIGNALLING, SWITCHING, BLOCKING, AND INTERLOCKING
Signals
per se, local operation mechanisms; remote control; control by passage of vehicles 5/00; 7/00; 13/00
Points
local operation mechanisms; remote control; control by passage of vehicles 5/00; 7/00; 11/00
switching systems of classification yards 17/00
points and signals interlocking by a single device 19/00
Scotch-blocks: local operation mechanisms; remote control 5/00; 7/00
Station blocking 21/00
TRAFFIC
Central control systems; recording and indicating traffic data; self-signalling 27/00; 25/00; 15/00
Safety: means concerning railway traffic; protection of road crossings 23/00; 29/00
ILLUMINATION OF POINTS, FORM SIGNALS, AND GATES 9/00
SUBJECT MATTER NOT PROVIDED FOR IN OTHER GROUPS OF THIS SUBCLASS 99/00
P:230 B61L 1/00
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)
 B61L 1/02
·  Electric devices associated with track
 B61L 1/04
·  ·  mechanically actuated by a part of the vehicle
 B61L 1/06
·  ·  actuated by deformation of rail; actuated by vibration in rail
 B61L 1/08
·  ·  magnetically actuated; electrostatically actuated
 B61L 1/10
·  ·  actuated by electromagnetic radiation; actuated by particle radiation
 B61L 1/12
·  Electric devices associated with overhead trolley wires
 B61L 1/14
·  Devices for indicating the passing of the end of the vehicle or vehicle train
 B61L 1/16
·  Devices for counting axles; Devices for counting vehicles (counting moving objects in general G06M)
 B61L 1/18
·  Railway track circuits (automatically-operated track circuits specially adapted for section blocking for controlling traffic B61L 23/00; rail joints E01B 11/00)
 B61L 1/20
·  Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
P:200 B61L 3/00
Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal
 B61L 3/02
·  at selected places along the route, e.g. intermittent control
 B61L 3/04
·  ·  controlling mechanically
 B61L 3/06
·  ·  controlling by electromagnetic or particle radiation, e.g. by light beam (using radio waves B61L 3/12)
 B61L 3/08
·  ·  controlling electrically
 B61L 3/10
·  ·  ·  using current passing between devices along the route and devices on the vehicle train
 B61L 3/12
·  ·  ·  using magnetic or electrostatic induction; using radio waves
 B61L 3/14
·  ·  to cut-off the power supply to traction motors of electrically-propelled vehicles
 B61L 3/16
·  Continuous control along the route
 B61L 3/18
·  ·  using electric current passing between devices along the route and devices on the vehicle or vehicle train
 B61L 3/20
·  ·  ·  employing different frequencies or coded pulse groups
 B61L 3/22
·  ·  using magnetic or electrostatic induction; using electromagnetic radiation
 B61L 3/24
·  ·  ·  employing different frequencies or coded pulse groups
P:250 B61L 5/00
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)
 B61L 5/02
·  Mechanical devices for operating points or scotch-blocks
 B61L 5/04
·  Fluid-pressure devices for operating points or scotch-blocks
 B61L 5/06
·  Electric devices for operating points or scotch-blocks
 B61L 5/08
·  Underground actuating arrangements, e.g. for tramways
 B61L 5/10
·  Locking mechanisms for points; Means for indicating the setting of points
 B61L 5/12
·  Visible signals
 B61L 5/14
·  ·  Form signals, e.g. semaphore arms
 B61L 5/16
·  ·  ·  Local operating mechanisms for form signals
 B61L 5/18
·  ·  Light signals; Mechanisms associated therewith, e.g. blinders
 B61L 5/20
·  Audible signals, e.g. detonator
 B61L 5/22
·  ·  Devices for initiating the release of detonators in a certain position of a signal
 B61L 5/24
·  ·  Replacement of detonators
P:240 B61L 7/00
Remote control of local operating means for points, signals, or track-mounted scotch-blocks (B61L 11/00 takes precedence; interlocking arrangements B61L 19/00)
 B61L 7/02
·  using mechanical transmission, e.g. wire, lever
 B61L 7/04
·  using fluid-pressure transmission
 B61L 7/06
·  using electrical transmission
 B61L 7/08
·  ·  Circuitry
 B61L 7/10
·  ·  ·  for light signals, e.g. for supervision, back- signalling
P:290 B61L 9/00
Illumination specially adapted for points, form signals, or gates (lighting in general F21)
 B61L 9/02
·  non-electric
 B61L 9/04
·  electric
P:210 B61L 11/00
Operation of points from the vehicle or by the passage of the vehicle
 B61L 11/02
·  using mechanical interaction between vehicle and track
 B61L 11/04
·  ·  Trailable point locks
 B61L 11/06
·  ·  with fluid-pressure transmission
 B61L 11/08
·  using electrical or magnetic interaction between vehicle and track
P:220 B61L 13/00
Operation of signals from the vehicle or by the passage of the vehicle
 B61L 13/02
·  using mechanical interaction between vehicle and track
 B61L 13/04
·  using electrical or magnetic interaction between vehicle and track
P:270 B61L 15/00
Indicators provided on the vehicle or vehicle train for signalling purposes
 B61L 15/02
·  Head or tail indicators, e.g. light
P:170 B61L 17/00
Switching systems for classification yards (rail brakes B61K)
 B61L 17/02
·  Details, e.g. indicating degree of track filling
P:260 B61L 19/00
Arrangements for interlocking between points and signals by means of a single interlocking device (station block arrangements B61L 21/00)
 B61L 19/02
·  Interlocking devices having mechanical or fluid-pressure operation
 B61L 19/04
·  ·  Details, e.g. hand lever, back-signalling device
 B61L 19/06
·  Interlocking devices having electrical operation
 B61L 19/08
·  ·  Special arrangements for power supply for interlocking devices
 B61L 19/10
·  ·  with mechanical locks
 B61L 19/12
·  ·  ·  Details
 B61L 19/14
·  ·  with electrical locks
 B61L 19/16
·  ·  ·  Details
P:160 B61L 21/00
Station blocking between signal boxes in one yard (interlocking between points and signals by means of a single interlocking device B61L 19/00)
 B61L 21/02
·  Mechanical locking and release of the route; Repeat locks; Coupling of semaphores
 B61L 21/04
·  Electrical locking and release of the route; Electrical repeat locks
 B61L 21/06
·  Vehicle-on-line indication; Monitoring locking and release of the route
 B61L 21/08
·  Order transmission and reception arrangements for giving or withholding permission
 B61L 21/10
·  Arrangements for trains which are closely following one another (automatic central traffic control systems B61L 27/04)
P:180 B61L 23/00
Control, warning or like safety means along the route or between vehicles or vehicle trains  [4]
 B61L 23/02
·  for indicating along the route the failure of brakes
 B61L 23/04
·  for monitoring the mechanical state of the route
 B61L 23/06
·  for warning men working on the route
 B61L 23/08
·  for controlling traffic in one direction only (station blocking between signal boxes in one yard B61L 21/00)
 B61L 23/10
·  ·  manually operated
 B61L 23/12
·  ·  partly operated by train
 B61L 23/14
·  ·  automatically operated
 B61L 23/16
·  ·  ·  Track circuits specially adapted for section blocking
 B61L 23/18
·  ·  ·  specially adapted for maintaining a safe distance between vehicles or vehicle trains depending upon speed and traffic density  [1,8]
 B61L 23/20
·  ·  ·  with transmission of instructions to stations along the route
 B61L 23/22
·  for controlling traffic in two directions over the same pair of rails (station blocking between signal boxes in one yard B61L 21/00)
 B61L 23/24
·  ·  using token systems, e.g. train staffs, tablets
 B61L 23/26
·  ·  with means for actuating signals from the vehicle or by passage of the vehicle
 B61L 23/28
·  ·  using non-automatic blocking from a place along the route
 B61L 23/30
·  ·  using automatic section blocking
 B61L 23/32
·  ·  ·  with provision for the blocking of passing sidings
 B61L 23/34
·  for indicating the distance between vehicles or vehicle trains by the transmission of signals therebetween  [4]
P:190 B61L 25/00
Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
 B61L 25/02
·  Indicating or recording positions or identities of vehicles or vehicle trains
 B61L 25/04
·  ·  Indicating or recording train identities
 B61L 25/06
·  Indicating or recording the setting of track apparatus, e.g. of points, of signals
 B61L 25/08
·  ·  Diagrammatic displays
P:150 B61L 27/00
Central traffic control systems
 B61L 27/02
·  Manual systems
 B61L 27/04
·  Automatic systems, e.g. controlled by train; Change-over to manual control
P:280 B61L 29/00
Safety means for rail/road crossing traffic
 B61L 29/02
·  Guards or obstacles for preventing access to the route (cattle guards connected to the permanent way E01B 17/00)
 B61L 29/04
·  Gates for level crossings
 B61L 29/06
·  ·  yielding to vehicles in one direction but operated in a different direction
 B61L 29/08
·  Operation of gates; Combined operation of gates and signals
 B61L 29/10
·  ·  Means for securing gates in their desired position
 B61L 29/12
·  ·  Manual operation
 B61L 29/14
·  ·  ·  mechanically
 B61L 29/16
·  ·  ·  electrically
 B61L 29/18
·  ·  Operation by approaching rail vehicle or rail vehicle train
 B61L 29/20
·  ·  ·  mechanically
 B61L 29/22
·  ·  ·  electrically
 B61L 29/24
·  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
 B61L 29/26
·  ·  mechanically operated
 B61L 29/28
·  ·  electrically operated
 B61L 29/30
·  ·  ·  Supervision, e.g. monitoring arrangements
 B61L 29/32
·  ·  ·  Timing, e.g. advance warning of approaching train
P:300 B61L 99/00
Subject matter not provided for in other groups of this subclass  [8]