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 11/00; 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 B60L 5/00; operation of points or signals by passage of the vehicle B60L 11/00, B61L 13/00; automatically-operated track circuits specially adapted for section blocking for controlling traffic B61L 23/00; central traffic control systems controlled by train B61L 27/00; operation of gates, or gates and signals, by approaching vehicle B61L 29/00; rail joints E01B 11/00)
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
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)
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)
P:290 B61L 9/00
Illumination specially adapted for points, form signals, or gates (lighting in general F21)
P:210 B61L 11/00
Operation of points from the vehicle or by the passage of the vehicle
P:220 B61L 13/00
Operation of signals from the vehicle or by the passage of the vehicle
P:270 B61L 15/00
Indicators provided on the vehicle or vehicle train for signalling purposes
P:170 B61L 17/00
Switching systems for classification yards (rail brakes B61K)
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)
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)
P:180 B61L 23/00
Control, warning or like safety means along the route or between vehicles or vehicle trains  [4]
P:190 B61L 25/00
Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
P:150 B61L 27/00
Central traffic control systems
P:280 B61L 29/00
Safety means for rail/road crossing traffic (cattle guards connected to the permanent way E01B 17/00)
P:300 B61L 99/00
Subject matter not provided for in other groups of this subclass  [8]