|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

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.

|  | B61F |
RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES, ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING; WHEELS GUARDS; OBSTRUCTION REMOVERS OR THE LIKE (for vehicles in general Fulltext... Hierarchy... Expanded...B60; axles, wheels Fulltext... Hierarchy... Expanded...B60B; vehicle tyres Fulltext... Hierarchy... Expanded...B60C)

|  | B61F |
Subclass index
FRAMES, RUNNING GEAR |
Underframes, bogies, connections therebetween | 1/00, 3/00, 5/00
For different gauges | 7/00
For preventing derailment | 9/00
Track-engaging means other than wheels | 11/00
WHEEL ARRANGEMENTS | 13/00
AXLE-BOXES; FORM, MOUNTING; LUBRICATION THEREOF | 15/00; 5/00; 17/00
WHEEL GUARDS, BUMPERS, OBSTRUCTION REMOVERS | 19/00

|  | B61F 1/00 |
Underframes (making railway vehicle underframes by forging or pressing Fulltext... Hierarchy... Expanded...B21K 7/12)

|  | B61F 1/02 |
· | with a single central sill

|  | B61F 1/04 |
· | of triangulated type

|  | B61F 1/06 |
· | specially adapted for locomotives or motor-driven railcars

|  | B61F 1/08 |
· | Details

|  | B61F 1/10 |
· · | End constructions

|  | B61F 1/12 |
· · | Cross bearers

|  | B61F 1/14 |
· · | Attaching or supporting vehicle body structure

|  | B61F 3/00 |
Types of bogies (Fulltext... Hierarchy... Expanded...B61F 5/00 takes precedence)

|  | B61F 3/02 |
· | with more than one axle

|  | B61F 3/04 |
· · | with driven axles or wheels

|  | B61F 3/06 |
· · · | with three or more axles

|  | B61F 3/08 |
· · | without driven axles or wheels

|  | B61F 3/10 |
· · · | with three or more axles

|  | B61F 3/12 |
· | specially modified for carrying adjacent vehicle bodies of articulated trains

|  | B61F 3/14 |
· | specially modified for reducing air resistance

|  | B61F 3/16 |
· | with a separate axle for each wheel

|  | B61F 5/00 |
Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves

|  | B61F 5/02 |
· | Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies

|  | B61F 5/04 |
· · | Bolster supports or mountings (side bearings Fulltext... Hierarchy... Expanded...B61F 5/14)

|  | B61F 5/06 |
· · · | incorporating metal springs

|  | B61F 5/08 |
· · · | incorporating rubber springs

|  | B61F 5/10 |
· · · | incorporating fluid springs

|  | B61F 5/12 |
· · · | incorporating dampers

|  | B61F 5/14 |
· · | Side bearings

|  | B61F 5/16 |
· · | Centre bearings or other swivel connections between underframes and bolsters or bogies

|  | B61F 5/18 |
· · · | King-bolts

|  | B61F 5/20 |
· · · | with springs allowing transverse movements

|  | B61F 5/22 |
· · | Guiding of the vehicle underframes with respect to the bogies

|  | B61F 5/24 |
· · · | Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes

|  | B61F 5/26 |
· | Mounting or securing axle-boxes in vehicle or bogie underframes

|  | B61F 5/28 |
· · | Axle-boxes integral with, or directly secured to, vehicle or bogie underframes

|  | B61F 5/30 |
· · | Axle-boxes mounted for movement under spring control in vehicle or bogie underframes

|  | B61F 5/32 |
· · · | Guides, e.g. plates, for axle-boxes

|  | B61F 5/34 |
· · · · | Wedge mechanisms for adjusting clearance between underframes and axles

|  | B61F 5/36 |
· · · | Arrangements for equalising or adjusting the load on wheels or springs, e.g. yokes

|  | B61F 5/38 |
· | Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles

|  | B61F 5/40 |
· · | Bogies with side frames mounted for longitudinal relative movements

|  | B61F 5/42 |
· · | Adjustment controlled by buffer or coupling gear

|  | B61F 5/44 |
· · | Adjustment controlled by movements of vehicle body

|  | B61F 5/46 |
· · | Adjustment controlled by a sliding axle under the same vehicle underframe

|  | B61F 5/48 |
· · | Trailing or leading bogies for locomotives or motor-driven railcars (Fulltext... Hierarchy... Expanded...B61F 5/40 takes precedence) [2]

|  | B61F 5/50 |
· | Other details

|  | B61F 5/52 |
· · | Bogie frames

|  | B61F 7/00 |
Rail vehicles equipped for use on tracks of different width

|  | B61F 9/00 |
Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels

|  | B61F 11/00 |
Rail vehicles characterised by rail-engaging elements other than wheels, e.g. balls

|  | B61F 13/00 |
Rail vehicles characterised by wheel arrangements, not otherwise provided for

|  | B61F 15/00 |
Axle-boxes (mounting or securing axle-boxes Fulltext... Hierarchy... Expanded...B61F 5/26; lubrication Fulltext... Hierarchy... Expanded...B61F 17/00; bearings in general Fulltext... Hierarchy... Expanded...F16C)

|  | B61F 15/02 |
· | with journal bearings

|  | B61F 15/04 |
· · | for locomotives

|  | B61F 15/06 |
· · | for cars

|  | B61F 15/08 |
· · | the axle being slidable or tiltable in the bearings

|  | B61F 15/10 |
· · · | and having springs opposing such movements

|  | B61F 15/12 |
· | with roller, needle, or ball bearings

|  | B61F 15/14 |
· · | constructed for taking-up axial pressure

|  | B61F 15/16 |
· · | the axle being slidable or tiltable in the bearings

|  | B61F 15/18 |
· · · | and having springs opposing such movements

|  | B61F 15/20 |
· | Details

|  | B61F 15/22 |
· · | Sealing means preventing entrance of dust or leakage of oil

|  | B61F 15/24 |
· · · | preventing oil leakage when vehicle is tilted or inverted

|  | B61F 15/26 |
· · | Covers; Sealing thereof

|  | B61F 15/28 |
· · | Axle-boxes modified to ensure electrical conductivity

|  | B61F 17/00 |
Lubrication specially adapted for axle-boxes of rail vehicles (lubrication in general Fulltext... Hierarchy... Expanded...F16N)

|  | B61F 17/02 |
· | with oil

|  | B61F 17/04 |
· · | Lubrication by stationary devices

|  | B61F 17/06 |
· · · | by means of a wick or the like

|  | B61F 17/08 |
· · · · | Devices for pressing the wick or the like against the rotating axle

|  | B61F 17/10 |
· · · | by means of an oil bath

|  | B61F 17/12 |
· · · | by gravity

|  | B61F 17/14 |
· · | Rotating lubricating devices

|  | B61F 17/16 |
· · · | with rings

|  | B61F 17/18 |
· · · | with chains

|  | B61F 17/20 |
· · · | with scoops or the like attached to, or coupled with, the axle

|  | B61F 17/22 |
· · · | with discs, rollers, or belts engaging the axle

|  | B61F 17/24 |
· · | by built-in lubricating pumps

|  | B61F 17/26 |
· · | by external feeding means, e.g. pneumatic devices

|  | B61F 17/28 |
· · | Applications of oil cleaners not otherwise provided for

|  | B61F 17/30 |
· | with grease

|  | B61F 17/32 |
· · | by manually-operated lubricators, e.g. screw cups

|  | B61F 17/34 |
· · | by automatic means, e.g. with spring action

|  | B61F 17/36 |
· | with other, e.g. mixed, lubricating agents

|  | B61F 19/00 |
Wheel guards; Bumpers; Obstruction removers or the like (for vehicles in general Fulltext... Hierarchy... Expanded...B60R 19/00)

|  | B61F 19/02 |
· | Wheel guards

|  | B61F 19/04 |
· | Bumpers or like collision guards

|  | B61F 19/06 |
· | Nets, catchers, or the like for catching obstacles or removing them from the track (mailbag catchers Fulltext... Hierarchy... Expanded...B61K 1/02)

|  | B61F 19/08 |
· · | of the drop-down type

|  | B61F 19/10 |
· · · | automatically operated by engagement with obstacle