|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

|  | B01 - B07 |
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION |
Method |
General operations | B01D
by centrifugal force, using centrifuges or free-vortex apparatus | B01D
using magnetic or electrostatic effect | B03C
Apparatus |
General operations | B01D
by centrifugal force, using centrifuges or free-vortex apparatus | B04B, B04C
using magnetic or electrostatic effect | B03C
SOLID/LIQUID OR SOLID/GAS SEPARATION |
Method |
General operations | B01D
by centrifugal force | B01D
using centrifuges or free-vortex apparatus | B01D
using magnetic or electrostatic effect | B03C
Apparatus |
General operations | B01D
by centrifugal force | B01D
using centrifuges or free-vortex apparatus | B04B, B04C
using magnetic or electrostatic effect | B03C
SOLID/SOLID SEPARATION |
Method |
Dry methods |
material in bulk | B07B
Individual sorting | B07C
Screening, sifting, pneumatic sorting | B07B
using pneumatic tables or jigs | B03B
by magnetic or electrostatic effect | B03C
by centrifugal force | B07B
using centrifuges or free-vortex apparatus | B07B
Wet methods |
General operations | B03B
flotation, differential sedimentation | B03D
screening | B07B
Combinations Dry methods - wet methods | B03B
Apparatus |
Dry methods |
material in bulk | B07B
Individual sorting | B07C
Screening, sifting, pneumatic sorting | B07B
using pneumatic tables or jigs | B03B
by magnetic or electrostatic effect | B03C
by centrifugal force | B07B
using centrifuges or free-vortex apparatus | B04B, B04C
Wet methods |
General operations | B03B
flotation, differential sedimentation | B03D
screening | B07B
Combinations Dry methods - wet methods | B03B

TRANSPORTING

|  | B61 |
RAILWAYS

|  | B61 |
Note(s) In this class, the following expression is used with the meaning indicated: "railway systems" covers: 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 Fulltext... Hierarchy... Expanded...B65G 17/00); 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 Fulltext... Hierarchy... Expanded...B65G 17/00, Fulltext... Hierarchy... Expanded...B65G 19/00); 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.

|  | B61C |
LOCOMOTIVES; MOTOR RAILCARS (vehicles in general Fulltext... Hierarchy... Expanded...B60; frames or bogies Fulltext... Hierarchy... Expanded...B61F; special railroad equipment for locomotives Fulltext... Hierarchy... Expanded...B61J, Fulltext... Hierarchy... Expanded...B61K)

|  | B61C |
Note(s) This subclass covers: general design features or items of locomotives and motor railcars not otherwise provided for; non-electric features of electric locomotives.

|  | B61C |
Subclass index
LOCOMOTIVES AND RAILCARS IN GENERAL |
Characterised by motive power: |
steam; electric; IC or gas turbine | 1/00; 3/00; 5/00
other | 7/00
Characterised by transmission system | 9/00
Characterised by type of means applying tractive effort | 11/00
LOCOMOTIVES AND RAILCARS FOR PARTICULAR USES | 13/00
DETAILS AND ACCESSORIES |
For particular transmission systems | 9/00
For particular propulsion means | 11/00
General and not otherwise provided for | 15/00, 17/00
FILLING STATIONS FOR AIR OR STEAM ACCUMULATORS | 8/00

|  | B61C 1/00 - B61C 7/00 |
Locomotives or motor railcars in general or characterised by the type of motive power plant used

P:50 |  | B61C 1/00 |
Steam locomotives or railcars (characterised by power transmissions Fulltext... Hierarchy... Expanded...B61C 9/00; engines Fulltext... Hierarchy... Expanded...F01; boilers Fulltext... Hierarchy... Expanded...F22B)

|  | B61C 1/02 |
· | of articulated construction; with two or more engines (appliances of booster engines Fulltext... Hierarchy... Expanded...B61C 15/02)

|  | B61C 1/04 |
· | with steam accumulators (steam accumulators Fulltext... Hierarchy... Expanded...F01K)

|  | B61C 1/06 |
· | Streamlining (of coachwork Fulltext... Hierarchy... Expanded...B61D)

|  | B61C 1/08 |
· | Arrangement or disposition of combustion apparatus or accessories therefor

|  | B61C 1/10 |
· | Arrangement or disposition of steam generators

|  | B61C 1/12 |
· | Arrangement or disposition of condensers

|  | B61C 1/14 |
· | Arrangement or disposition of exhaust apparatus

P:40 |  | B61C 3/00 |
Electric locomotives or railcars (characterised by power transmission Fulltext... Hierarchy... Expanded...B61C 9/00; electrical features Fulltext... Hierarchy... Expanded...B60L, Fulltext... Hierarchy... Expanded...H02)

|  | B61C 3/02 |
· | with electric accumulators

P:30 |  | B61C 5/00 |
Locomotives or motor railcars with IC engines or gas turbines (characterised by power transmission Fulltext... Hierarchy... Expanded...B61C 9/00; engines Fulltext... Hierarchy... Expanded...F02)

|  | B61C 5/02 |
· | Arrangement or disposition of intakes and apparatus for supplying, circulating, or filtering air for combustion or engine-cooling purposes

|  | B61C 5/04 |
· | Arrangement or disposition of exhaust apparatus

P:60 |  | B61C 7/00 |
Other locomotives or motor railcars

|  | B61C 7/02 |
· | Locomotives or motor railcars with pneumatic accumulators

|  | B61C 7/04 |
· | Locomotives or motor railcars with two or more different kinds or types of engines, e.g. steam and IC engines

P:80 |  | B61C 8/00 |
Filling stations for steam- or pneumatic-accumulator locomotives or motor railcars

P:20 |  | B61C 9/00 |
Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars (machine elements Fulltext... Hierarchy... Expanded...F16)

|  | B61C 9/02 |
· | Transmission systems in or for locomotives or motor railcars with reciprocating-piston steam engines

|  | B61C 9/04 |
· · | consisting of cranked axles and coupling-rods

|  | B61C 9/06 |
· · | having toothed, chain, friction, or belt gearing

|  | B61C 9/08 |
· | Transmission systems in or for locomotives or motor railcars with IC reciprocating-piston engines

|  | B61C 9/10 |
· · | mechanical (combined with hydraulic gearing Fulltext... Hierarchy... Expanded...B61C 9/14)

|  | B61C 9/12 |
· · · | with change-speed gearing

|  | B61C 9/14 |
· · | hydraulic, including combinations with mechanical gearing

|  | B61C 9/16 |
· · · | using gearing of the hydrostatic type

|  | B61C 9/18 |
· · · | using gearing of the hydrokinetic type

|  | B61C 9/20 |
· · · · | with mechanical change-speed gearing

|  | B61C 9/22 |
· · | pneumatic

|  | B61C 9/24 |
· · | electric (Fulltext... Hierarchy... Expanded...B61C 9/38 takes precedence)

|  | B61C 9/26 |
· · | with transmission shafts at an angle to the driving axles

|  | B61C 9/28 |
· | Transmission systems in or for locomotives or motor railcars with rotary prime movers, e.g. turbines

|  | B61C 9/30 |
· · | mechanical (combined with hydraulic gearing Fulltext... Hierarchy... Expanded...B61C 9/34)

|  | B61C 9/32 |
· · · | with change-speed gearing

|  | B61C 9/34 |
· · | hydraulic, including combinations with mechanical gearing

|  | B61C 9/36 |
· · | electric (Fulltext... Hierarchy... Expanded...B61C 9/38 takes precedence)

|  | B61C 9/38 |
· | Transmission systems in or for locomotives or motor railcars with electric motor propulsion (electrical features Fulltext... Hierarchy... Expanded...B60L, Fulltext... Hierarchy... Expanded...H02)

|  | B61C 9/40 |
· · | with cranked axles and coupling-rods

|  | B61C 9/42 |
· · | hydraulic

|  | B61C 9/44 |
· · | with hollow transmission shaft concentric with wheel axis

|  | B61C 9/46 |
· · | with motors forming parts of wheels

|  | B61C 9/48 |
· · | with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension

|  | B61C 9/50 |
· · · | in bogies

|  | B61C 9/52 |
· · | with transmission shafts at an angle to the driving axles

|  | B61C 11/00 - B61C 13/00 |
Locomotives or motor railcars characterised by the type of means applying the tractive effort, or by their application to special railway systems or purposes

P:0 |  | B61C 11/00 |
Locomotives or motor railcars characterised by the type of means applying the tractive effort; Arrangement or disposition of running gear other than normal driving wheels (construction of wheels Fulltext... Hierarchy... Expanded...B60B)

|  | B61C 11/02 |
· | tractive effort applied to cables or chains

|  | B61C 11/04 |
· | tractive effort applied to racks

|  | B61C 11/06 |
· | tractive effort applied or supplied by aerodynamic force or fluid reaction, e.g. air-screws or jet or rocket propulsion

P:10 |  | B61C 13/00 |
Locomotives or motor railcars characterised by their application to special systems or purposes (Fulltext... Hierarchy... Expanded...B61C 11/00 takes precedence; self-propelled scaffold cars, break-down cranes, inspection trolleys Fulltext... Hierarchy... Expanded...B61D 15/00; general design of track recording vehicles Fulltext... Hierarchy... Expanded...B61K 9/00)

|  | B61C 13/02 |
· | for towing or transporting ships or for like special purposes

|  | B61C 13/04 |
· | for elevated railways with rigid rails (Fulltext... Hierarchy... Expanded...B61C 13/08 takes precedence)

|  | B61C 13/06 |
· | for railways with suspended flexible tracks, e.g. rope railways

|  | B61C 13/08 |
· | for saddle or like balanced-type railways

|  | B61C 15/00 - B61C 17/00 |
Details or accessories not otherwise provided for

P:70 |  | B61C 15/00 |
Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels (propelling locomotives or motor railcars by special means Fulltext... Hierarchy... Expanded...B61C 11/00; driving wheels with non-slipping devices Fulltext... Hierarchy... Expanded...B60B; brakes Fulltext... Hierarchy... Expanded...B61H; wetting or lubricating rails Fulltext... Hierarchy... Expanded...B61K)

|  | B61C 15/02 |
· | by auxiliary driving wheels; by temporary coupling or use of flywheels or booster engines

|  | B61C 15/04 |
· | by controlling wheel pressure, e.g. by movable weights or heavy parts or by magnetic devices (magnetic brakes Fulltext... Hierarchy... Expanded...B61H)

|  | B61C 15/06 |
· · | by displacing fuel, ballast, or the like

|  | B61C 15/08 |
· | Preventing wheel slippage (adjusting wheel-braking force to prevent wheel slippage Fulltext... Hierarchy... Expanded...B60T 8/00)

|  | B61C 15/10 |
· · | by depositing sand or like friction-increasing materials (for vehicles in general Fulltext... Hierarchy... Expanded...B60B; combined control of sanding apparatus and brakes Fulltext... Hierarchy... Expanded...B61H)

|  | B61C 15/12 |
· · | by reducing the driving power

|  | B61C 15/14 |
· | controlling distribution of tractive effort between driving wheels

P:90 |  | B61C 17/00 |
Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems [2]

|  | B61C 17/02 |
· | Bunkers; Tanks; Tenders (coachwork Fulltext... Hierarchy... Expanded...B61D); Water or fuel pick-up or scoop apparatus; Water or fuel supply fittings (trackside installations, e.g. bunkers, tanks, for filling locomotives with sand or water Fulltext... Hierarchy... Expanded...B61K 11/00)

|  | B61C 17/04 |
· | Arrangement or disposition of driving cabins, footplates, or engine rooms; Ventilation thereof (driving cabins or accessories Fulltext... Hierarchy... Expanded...B61D)

|  | B61C 17/06 |
· | Power storing devices

|  | B61C 17/08 |
· | Lubrication systems (in general Fulltext... Hierarchy... Expanded...F16N)

|  | B61C 17/10 |
· | Connecting-rods for driving wheels; Arrangements of their bearings (connecting-rods or bearings, in general Fulltext... Hierarchy... Expanded...F16C 7/00, Fulltext... Hierarchy... Expanded...F16C 9/04)

|  | B61C 17/12 |
· | Control gear; Arrangements for controlling locomotives from remote points in the train or when operating in multiple units (control from points outside the train Fulltext... Hierarchy... Expanded...B61L 3/00; fluid-actuated telemotors, servomotors Fulltext... Hierarchy... Expanded...F15B; control devices in general Fulltext... Hierarchy... Expanded...G05)