|  | 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.

|  | B61H |
BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES; ARRANGEMENTS OR DIS-POSITIONS OF BRAKES OR OTHER RETARDING APPARATUS IN RAIL VEHICLES (electrodynamic braking of vehicles Fulltext... Hierarchy... Expanded...B60L, in general Fulltext... Hierarchy... Expanded...H02K; arrangements in rail vehicles for adjusting wheel-braking force to meet varying vehicular or permanent-way conditions Fulltext... Hierarchy... Expanded...B60T 8/00; transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive, brake systems incorporating such transmitting means, e.g. air-pressure brake systems, Fulltext... Hierarchy... Expanded...B60T 13/00; construction, arrangement, or operation of valves incorporated in power brake systems Fulltext... Hierarchy... Expanded...B60T 15/00; component parts, details, or accessories of brake systems Fulltext... Hierarchy... Expanded...B60T 17/00; brakes in general Fulltext... Hierarchy... Expanded...F16D)

|  | B61H |
Subclass index
BRAKES ACTING ON TRACK; BRAKES FOR SPECIAL PURPOSES | 7/00; 9/00
ARRANGEMENTS OF BRAKES |
Acting on wheels | 1/00, 3/00, 5/00
Other arrangements, combinations | 11/00
ACTUATION | 13/00
COMPENSATING FOR WEAR | 15/00

P:30 |  | B61H 1/00 |
Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like (self-applying brakes Fulltext... Hierarchy... Expanded...B61H 11/02; combinations of different types of brakes Fulltext... Hierarchy... Expanded...B61H 11/14; wheels Fulltext... Hierarchy... Expanded...B60B)

P:40 |  | B61H 3/00 |
Applications or arrangements of brakes with an outwardly-movable braking member or members co-operating with the inner surface of a drum or the like (self-applying brakes Fulltext... Hierarchy... Expanded...B61H 11/02; combinations of different types of brakes Fulltext... Hierarchy... Expanded...B61H 11/14)

P:50 |  | B61H 5/00 |
Applications or arrangements of brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes (self-applying brakes Fulltext... Hierarchy... Expanded...B61H 11/02; combinations of different types of brakes Fulltext... Hierarchy... Expanded...B61H 11/14)

P:20 |  | B61H 7/00 |
Brakes with braking members co-operating with the track (positive railway stops or track brakes secured to permanent way Fulltext... Hierarchy... Expanded...B61K 7/00)

|  | B61H 7/02 |
· | Scotch-blocks, skids, or like track-engaging shoes

|  | B61H 7/04 |
· · | attached to railway vehicles

|  | B61H 7/06 |
· · · | Skids

|  | B61H 7/08 |
· · · · | electromagnetically operated

|  | B61H 7/10 |
· · | unattached

|  | B61H 7/12 |
· | Grippers co-operating frictionally with tracks

P:0 |  | B61H 9/00 |
Brakes characterised by, or modified for, their application to special railway systems or purposes

|  | B61H 9/02 |
· | for aerial, e.g. rope, railways

|  | B61H 9/04 |
· | for preventing or controlling movement in one direction or, selectively, in either direction

|  | B61H 9/06 |
· | for storing energy during braking action

P:10 |  | B61H 11/00 |
Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types

|  | B61H 11/02 |
· | of self-applying brakes

|  | B61H 11/04 |
· · | with brake-applying force derived from rotation of axle

|  | B61H 11/06 |
· | of hydrostatic, hydrodynamic, or aerodynamic brakes

|  | B61H 11/08 |
· · | comprising a pump or the like circulating fluid, braking being effected by throttling of the circulation

|  | B61H 11/10 |
· · | Aerodynamic brakes with control flaps, e.g. spoilers, attached to the vehicles

|  | B61H 11/14 |
· | Combinations of different types of brakes, e.g. brake blocks acting on wheel-rim combined with disc brakes

|  | B61H 11/16 |
· | Removable self-contained brake units

P:60 |  | B61H 13/00 |
Actuating rail-vehicle brakes (self-applying brakes Fulltext... Hierarchy... Expanded...B61H 11/02; wear-compensating mechanisms Fulltext... Hierarchy... Expanded...B61H 15/00)

|  | B61H 13/02 |
· | Hand or other personal actuation

|  | B61H 13/04 |
· · | by mechanisms incorporating toothed gearing

|  | B61H 13/06 |
· | Actuating or influencing the brakes by backward- pressure of buffers or coupling gear, e.g. buffer brakes

|  | B61H 13/20 |
· | Transmitting mechanisms (wear-compensating mechanisms Fulltext... Hierarchy... Expanded...B61H 15/00)

|  | B61H 13/22 |
· · | for braking a single wheel or wheels at one side only, e.g. for locomotives or motor railcars

|  | B61H 13/24 |
· · | for cars with two axles or bogies with two axles and braking cylinder(s) for each bogie, the mechanisms at each side being interconnected

|  | B61H 13/26 |
· · | for cars or bogies with more than two axles or bogies, the mechanisms at each side being interconnected

|  | B61H 13/28 |
· · | with variable leverage or mechanical advantage to obtain quick take-up

|  | B61H 13/30 |
· · | adjustable to take account of variation of vehicle weight (arrangements for adjusting wheel-braking force in response to vehicle weight or load Fulltext... Hierarchy... Expanded...B60T 8/18)

|  | B61H 13/32 |
· · · | by varying brake lever leverage

|  | B61H 13/34 |
· | Details

|  | B61H 13/36 |
· · | Beams; Suspension thereof

|  | B61H 13/38 |
· · | Suspension of transmitting mechanisms (Fulltext... Hierarchy... Expanded...B61H 13/36 takes precedence)

P:70 |  | B61H 15/00 |
Wear-compensating mechanisms, e.g. slack adjusters