E01B1/00	7	Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway (draining by trenches, culverts, or conduits E01F5/00)	E01B1/00	E01B1/00		661
E01B1/001	8	{Track with ballast}	E01B1/00	E01B1/00		615
E01B1/002	8	{Ballastless track, e.g. concrete slab trackway, or with asphalt layers}	E01B1/00	E01B1/00		1466
E01B1/004	9	{with prefabricated elements embedded in fresh concrete or asphalt}	E01B1/00	E01B1/00		260
E01B1/005	9	{with sleeper shoes}	E01B1/00	E01B1/00		163
E01B1/007	9	{with interlocking means to withstand horizontal forces}	E01B1/00	E01B1/00		152
E01B1/008	8	{Drainage of track}	E01B1/00	E01B1/00		461
E01B2/00	7	General structure of permanent way (railway networks B61B1/00; foundations for pavings E01C3/00; foundations in general E02D)	E01B2/00	E01B2/00		1343
E01B2/003	8	{Arrangement of tracks on bridges or in tunnels}	E01B2/00	E01B2/00		432
E01B2/006	8	{Deep foundation of tracks}	E01B2/00	E01B2/00		490
E01B3/00	7	Transverse or longitudinal sleepers (for switches or crossings E01B7/22); Other means resting directly on the ballastway for supporting rails	E01B3/00	E01B3/00		300
E01B3/02	8	made from wood (drying or impregnating B27K)	E01B3/02	E01B3/02		60
E01B3/04	9	Means for preventing cleaving	E01B3/04	E01B3/04		16
E01B3/06	10	Anti-cracking dogs	E01B3/06	E01B3/06		35
E01B3/08	10	Straps  or bands for hooping or encircling sleepers (apparatus for hooping wooden railway sleepers on the spot E01B31/28)	E01B3/08	E01B3/08		48
E01B3/10	9	Composite sleepers	E01B3/10	E01B3/10		94
E01B3/12	9	Longitudinal sleepers; Longitudinal sleepers integral or combined with tie-rods; Combined longitudinal and transverse sleepers	E01B3/12	E01B3/12		64
E01B3/14	9	Slabs; Blocks; Fastening tie-rods to them	E01B3/14	E01B3/14		10
E01B3/16	8	made from steel	E01B3/16	E01B3/16		1725
E01B3/18	9	Composite sleepers	E01B3/18	E01B3/18		494
E01B3/20	9	Sleeper construction for special purposes, e.g. with openings for ballast working (sleepers for shiftable track for heavy loads E01B23/12)	E01B3/20	E01B3/20		120
E01B3/22	9	Longitudinal sleepers; Longitudinal sleepers integral or combined with tie-rods; Combined longitudinal and transverse sleepers	E01B3/22	E01B3/22		289
E01B3/24	9	Slabs; Blocks; Pot sleepers; Fastening tie-rods to them	E01B3/24	E01B3/24		171
E01B3/26	9	combined with inserts of wood artificial stone or other material	E01B3/26	E01B3/26		472
E01B3/28	8	made from concrete or from natural or artificial stone (manufacture B28)	E01B3/28	E01B3/28		396
E01B3/30	9	Hollow sleepers	E01B3/30	E01B3/30		30
E01B3/32	9	with armouring or reinforcement (hollow sleepers E01B3/30)	E01B3/32	E01B3/32		831
E01B3/34	10	with pre-tensioned armouring or reinforcement (pre-tensioned armouring or reinforcing elements E04C5/00)	E01B3/34	E01B3/34		228
E01B3/36	9	Composite sleepers	E01B3/36	E01B3/36		353
E01B3/38	9	Longitudinal sleepers; Longitudinal sleepers integral or combined with tie-rods; Combined longitudinal and transverse sleepers; Layers of concrete supporting both rails	E01B3/38	E01B3/38		452
E01B3/40	9	Slabs; Blocks; Pot sleepers; Fastening tie-rods to them	E01B3/40	E01B3/40		399
E01B3/42	9	combined with inserts of wood or other material	E01B3/42	E01B3/42		155
E01B3/44	8	made from other materials only if the material is essential	E01B3/44	E01B3/44		299
E01B3/46	8	made from different materials (E01B3/26, E01B3/42 take precedence)	E01B3/46	E01B3/46		359
E01B3/48	8	Distance keepers or tie-rods for sleepers	E01B3/48	E01B3/48		144
E01B5/00	7	Rails; Guard rails (manufacture of rails B21B); Distance-keeping means for them	E01B5/00	E01B5/00		71
E01B5/02	8	Rails	E01B5/02	E01B5/02		732
E01B5/04	9	Grooved rails	E01B5/04	E01B5/04		154
E01B5/06	9	Reversible or invertible rails	E01B5/06	E01B5/06		32
E01B5/08	9	Composite rails; Compound rails with dismountable or non-dismountable parts	E01B5/08	E01B5/08		546
E01B5/10	10	Composite grooved rails; Inserts for grooved rails	E01B5/10	E01B5/10		146
E01B5/12	9	Rails with a foot serving as a sleeper	E01B5/12	E01B5/12		8
E01B5/14	9	Rails for special parts of the track, e.g. for curves	E01B5/14	E01B5/14		134
E01B5/16	8	Distance keepers	E01B5/16	E01B5/16		582
E01B5/18	8	Guard rails; Connecting, fastening or adjusting means therefor	E01B5/18	E01B5/18		644
E01B7/00	7	Switches; Crossings (operating mechanisms B61L)	E01B7/00	E01B7/00		982
E01B7/02	8	Tongues; Associated constructions	E01B7/02	E01B7/02		798
E01B7/04	9	Constructions with tongues turning about a vertical pivot at the end	E01B7/04	E01B7/04		334
E01B7/06	9	Constructions with flexible tongues or flexible fishplates	E01B7/06	E01B7/06		180
E01B7/08	9	Other constructions of tongues, e.g. tilting about an axis parallel to the rail, movable tongue blocks or rails	E01B7/08	E01B7/08		304
E01B7/10	8	Frogs	E01B7/10	E01B7/10		264
E01B7/12	9	Fixed frogs made of one part or composite	E01B7/12	E01B7/12		627
E01B7/14	9	with movable parts	E01B7/14	E01B7/14		683
E01B7/16	9	Jump-over frogs	E01B7/16	E01B7/16		46
E01B7/18	8	Combinations of switches and crossings	E01B7/18	E01B7/18		108
E01B7/20	8	Safety means for switches, e.g. switch point protectors, auxiliary or guiding rail members	E01B7/20	E01B7/20		399
E01B7/22	8	Special sleepers for switches or crossings; Fastening means therefor	E01B7/22	E01B7/22		345
E01B7/24	8	Heating of switches	E01B7/24	E01B7/24		547
E01B7/26	8	Lubricating of switches (lubricating of rails B61K3/00)	E01B7/26	E01B7/26		69
E01B7/28	8	Crossings	E01B7/28	E01B7/28		446
E01B7/30	9	Jump-over crossings	E01B7/30	E01B7/30		192
E01B9/00	7	Fastening rails on sleepers, or the like (fastening rails to bridges E01D19/12)	E01B9/00	E01B9/00		199
E01B9/02	8	Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor	E01B9/02	E01B9/02		292
E01B9/04	9	Fastening on wooden or concrete sleepers or on masonry without clamp members	E01B9/04	E01B9/04		91
E01B9/06	10	Railways spikes (nails in general F16B)	E01B9/06	E01B9/06		279
E01B9/08	11	Elastic spikes	E01B9/08	E01B9/08		164
E01B9/10	10	Screws or bolts for sleepers (screws or bolts in general F16B)	E01B9/10	E01B9/10		304
E01B9/12	10	Retaining or locking devices for spikes or screws	E01B9/12	E01B9/12		332
E01B9/14	10	Plugs, sleeves, thread linings, or other inserts for holes in sleepers (inserting plugs or sleeves E01B31/26)	E01B9/14	E01B9/14		126
E01B9/16	11	for wooden sleepers	E01B9/16	E01B9/16		166
E01B9/18	11	for concrete sleepers	E01B9/18	E01B9/18		296
E01B9/20	10	by keys	E01B9/20	E01B9/20		26
E01B9/22	9	Fastening on steel sleepers without clamp members	E01B9/22	E01B9/22		26
E01B9/24	10	by keys	E01B9/24	E01B9/24		73
E01B9/26	10	Welded fastenings	E01B9/26	E01B9/26		26
E01B9/28	9	Fastening on wooden or concrete sleepers or on masonry with clamp members	E01B9/28	E01B9/28		589
E01B9/30	10	by resilient steel clips	E01B9/30	E01B9/30		256
E01B9/303	11	{the clip being a shaped bar}	E01B9/30	E01B9/30		525
E01B9/306	11	{the clip being a shaped plate}	E01B9/30	E01B9/30		333
E01B9/32	9	Fastening on steel sleepers with clamp members	E01B9/32	E01B9/32		545
E01B9/34	10	by resilient steel clips	E01B9/34	E01B9/34		200
E01B9/36	9	Metal sole-plates for rails which rails are directly fastened to sleepers	E01B9/36	E01B9/36		408
E01B9/38	8	Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs	E01B9/38	E01B9/38		191
E01B9/40	9	Tie-plates for flat-bottom rails (manufacture B21)	E01B9/40	E01B9/40		330
E01B9/42	10	of two or more parts	E01B9/42	E01B9/42		217
E01B9/44	9	Fastening the rail on the tie-plate	E01B9/44	E01B9/44		135
E01B9/46	10	by clamps	E01B9/46	E01B9/46		325
E01B9/48	11	by resilient steel clips	E01B9/48	E01B9/48		187
E01B9/483	12	{the clip being a shaped bar}	E01B9/48	E01B9/48		353
E01B9/486	12	{the clip being a shaped plate}	E01B9/48	E01B9/48		197
E01B9/50	10	by keys	E01B9/50	E01B9/50		90
E01B9/52	11	by resilient keys	E01B9/52	E01B9/52		23
E01B9/54	9	Rail chairs	E01B9/54	E01B9/54		166
E01B9/56	10	for rails with two or more treads	E01B9/56	E01B9/56		4
E01B9/58	9	Fastening the rail in the chair	E01B9/58	E01B9/58		230
E01B9/60	8	Rail fastenings making use of clamps or braces supporting the side of the rail	E01B9/60	E01B9/60		517
E01B9/62	8	Rail fastenings incorporating resilient supports	E01B9/62	E01B9/62		617
E01B9/64	8	Rail fastenings gripping or encircling the sleeper	E01B9/64	E01B9/64		166
E01B9/66	8	Rail fastenings allowing the adjustment of the position of the rails, so far as not included in the preceding groups	E01B9/66	E01B9/66		513
E01B9/68	8	Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair<br><br><u>NOTE</u><br><br> If the subject to be classified has more than one characteristic, classification is made in group E01B9/68 and indexing codes for the different characteristics are given 	E01B9/68	E01B9/68		815
E01B9/681	9	{characterised by the material}	E01B9/68	E01B9/68		364
E01B9/683	10	{layered or composite}	E01B9/68	E01B9/68		283
E01B9/685	9	{characterised by their shape}	E01B9/68	E01B9/68		376
E01B9/686	10	{with textured surface}	E01B9/68	E01B9/68		302
E01B9/688	10	{with internal cavities}	E01B9/68	E01B9/68		76
E01B11/00	7	Rail joints (electrical connection of the rail B60M5/00)	E01B11/00	E01B11/00		146
E01B11/02	8	Dismountable rail joints	E01B11/02	E01B11/02		303
E01B11/04	9	Flat fishplates	E01B11/04	E01B11/04		296
E01B11/06	10	with keys or pins	E01B11/06	E01B11/06		115
E01B11/08	9	Angle fishplates	E01B11/08	E01B11/08		290
E01B11/10	9	Fishplates with parts supporting or surrounding the rail foot	E01B11/10	E01B11/10		1259
E01B11/12	9	Fishplates engaging only the rail foot	E01B11/12	E01B11/12		94
E01B11/14	9	Rail foot flange clips in one piece	E01B11/14	E01B11/14		15
E01B11/16	9	Fishplates for joining rails of different sections	E01B11/16	E01B11/16		132
E01B11/18	9	Fishplates for temporarily repairing broken rails	E01B11/18	E01B11/18		47
E01B11/20	9	with gap-bridging	E01B11/20	E01B11/20		22
E01B11/22	10	by parts of the rails	E01B11/22	E01B11/22		16
E01B11/24	11	with oblique or overlapping rail ends	E01B11/24	E01B11/24		510
E01B11/26	11	with interlocking rail ends	E01B11/26	E01B11/26		588
E01B11/28	10	by parts of the joining members	E01B11/28	E01B11/28		230
E01B11/30	11	Fishplates with integral tread parts lying in the cross-section of the rail head	E01B11/30	E01B11/30		214
E01B11/32	10	by separate parts, Inserts bridging both rail heads	E01B11/32	E01B11/32		372
E01B11/34	11	Auxiliary rail beside gap	E01B11/34	E01B11/34		27
E01B11/36	9	Fastening means for fishplates	E01B11/36	E01B11/36		427
E01B11/38	10	Locking arrangements for fastening means (locking means for nuts or bolts in general F16B)	E01B11/38	E01B11/38		172
E01B11/40	9	Dismountable rail joints combined with welded parts	E01B11/40	E01B11/40		25
E01B11/42	8	Joint constructions for relatively movable rails, e.g. rails on turntables, traversers, or swing bridges	E01B11/42	E01B11/42		125
E01B11/44	8	Non-dismountable rail joints; Welded joints (welding methods B23K)	E01B11/44	E01B11/44		208
E01B11/46	9	General methods for making gapless tracks	E01B11/46	E01B11/46		64
E01B11/48	9	Joints made by flame welding	E01B11/48	E01B11/48		22
E01B11/50	9	Joints made by electric welding	E01B11/50	E01B11/50		165
E01B11/52	9	Joints made by alumino-thermal welding	E01B11/52	E01B11/52		145
E01B11/54	8	Electrically-insulating rail joints	E01B11/54	E01B11/54		630
E01B11/56	8	Special arrangements for supporting rail ends (foot supports E01B11/08&#160;-&#160;E01B11/14)	E01B11/56	E01B11/56		114
E01B11/58	9	Bridge plates	E01B11/58	E01B11/58		277
E01B11/60	10	with wedges	E01B11/60	E01B11/60		18
E01B11/62	9	Bridge chairs (chairs E01B9/54&#160;-&#160;E01B9/58)	E01B11/62	E01B11/62		997
E01B13/00	7	Arrangements preventing shifting of the track	E01B13/00	E01B13/00		146
E01B13/02	8	Rail anchors	E01B13/02	E01B13/02		1584
E01B15/00	7	Guards for preventing a person&apos;s foot being trapped in grooved rails	E01B15/00	E01B15/00		130
E01B17/00	7	Cattle guards connected to the permanent way (grids in general for preventing cattle from straying A01K3/00)	E01B17/00	E01B17/00		195
E01B19/00	7	Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise (snow fences E01F7/02, snow-ploughs E01H8/02, watering E01H11/00)	E01B19/00	E01B19/00		1069
E01B19/003	8	{Means for reducing the development or propagation of noise}	E01B19/00	E01B19/00		1816
E01B19/006	8	{Means for protecting the underground against spillage}	E01B19/00	E01B19/00		88
E01B21/00	7	Track superstructure adapted for tramways in paved streets (paving E01C9/04, E01C9/06)	E01B21/00	E01B21/00		333
E01B21/02	8	Special supporting means; Draining of rails	E01B21/02	E01B21/02		201
E01B21/04	8	Special fastenings, joint constructions, or tie-rods	E01B21/04	E01B21/04		163
E01B23/00	7	Easily dismountable or movable tracks, e.g. temporary railways; Details specially adapted therefor	E01B23/00	E01B23/00		199
E01B23/02	8	Tracks for light railways, e.g. for field, colliery, or mine use	E01B23/02	E01B23/02		250
E01B23/04	9	Fastening or joining means	E01B23/04	E01B23/04		413
E01B23/06	9	Switches (turntables B60S, B61J); Portable switches; Turnouts	E01B23/06	E01B23/06		256
E01B23/08	8	Temporary tracks for use while repairing tramways	E01B23/08	E01B23/08		9
E01B23/10	8	Shiftable tracks for heavy loads, e.g. carrying excavators	E01B23/10	E01B23/10		157
E01B23/12	9	Sleepers	E01B23/12	E01B23/12		59
E01B23/14	9	Fastening or joining means (fastening of rails by keys E01B9/24)	E01B23/14	E01B23/14		100
E01B23/16	9	Switches	E01B23/16	E01B23/16		16
E01B25/00	7	Tracks for special kinds of railways (systems B61B; wheel tracks on roads E01C9/02)	E01B25/00	E01B25/00		655
E01B25/02	8	Tracks for rack railways	E01B25/02	E01B25/02		70
E01B25/04	9	Rack rails; Supports or connections for rack rails	E01B25/04	E01B25/04		145
E01B25/06	9	Switches; Frogs; Crossings	E01B25/06	E01B25/06		42
E01B25/08	8	Tracks for mono-rails with centre of gravity of vehicle above the load-bearing rail	E01B25/08	E01B25/08		229
E01B25/10	9	Mono-rails; Auxiliary balancing rails; Supports or connections for rails	E01B25/10	E01B25/10		543
E01B25/12	9	Switches; Crossings	E01B25/12	E01B25/12		289
E01B25/14	8	Tracks for cable-drawn railway vehicles	E01B25/14	E01B25/14		61
E01B25/15	9	Switches; Crossings	E01B25/15	E01B25/15		41
E01B25/16	8	Tracks for aerial rope railways with a stationary rope	E01B25/16	E01B25/16		153
E01B25/18	9	Ropes; Supports, fastening or straining means for ropes (ropes in general D07B; masts E04H12/00; ropes sockets F16G)	E01B25/18	E01B25/18		305
E01B25/20	9	Switches; Crossings	E01B25/20	E01B25/20		8
E01B25/22	8	Tracks for railways with the vehicle suspended from rigid supporting rails	E01B25/22	E01B25/22		506
E01B25/24	9	Supporting rails; Auxiliary balancing rails; Supports or connections for rails	E01B25/24	E01B25/24		912
E01B25/26	9	Switches; Crossings	E01B25/26	E01B25/26		608
E01B25/28	8	Rail tracks for guiding vehicles when running on road or similar surface (wheel tracks on roads E01C9/02)	E01B25/28	E01B25/28		531
E01B25/30	8	Tracks for magnetic suspension or levitation vehicles	E01B25/30	E01B25/30		527
E01B25/305	9	{Rails or supporting constructions}	E01B25/30	E01B25/30		597
E01B25/32	9	Stators, guide rails or slide rails	E01B25/32	E01B25/32		213
E01B25/34	9	Switches; Frogs; Crossings	E01B25/34	E01B25/34		168
E01B26/00	7	Tracks or track components not covered by any one of the preceding groups	E01B26/00	E01B26/00		501
E01B26/005	8	{Means for fixing posts, barriers, fences or the like to rails}	E01B26/00	E01B26/00		172
E01B27/00	7	Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers	E01B27/00	E01B27/00		320
E01B27/02	8	Placing the ballast; Making ballastway; Redistributing ballasting material; Machines or devices therefor; Levelling means	E01B27/02	E01B27/02		267
E01B27/021	9	{by devices moving underneath the track, e.g. ballast sleighs}	E01B27/02	E01B27/02		35
E01B27/022	9	{by devices moving on the track with or without spreading or levelling}	E01B27/02	E01B27/02		145
E01B27/023	9	{Spreading, levelling or redistributing ballast already placed}	E01B27/02	E01B27/02		79
E01B27/025	10	{by means of non-driven tools}	E01B27/02	E01B27/02		226
E01B27/026	10	{by means of driven tools, e.g. rotating brooms or digging devices}	E01B27/02	E01B27/02		206
E01B27/027	9	{Loosening ballasting material}	E01B27/02	E01B27/02		35
E01B27/028	9	{Compacting ballasting material; Performing ballast cores or seats for sleepers}	E01B27/02	E01B27/02		76
E01B27/04	8	Removing the ballast; Machines therefor, whether or not additionally adapted for taking-up ballast (E01B27/06, E01B27/12 takes precedence; redistributing ballasting material E01B27/02)	E01B27/04	E01B27/04		440
E01B27/06	8	Renewing or cleaning the ballast in situ, with or without concurrent work on the track	E01B27/06	E01B27/06		359
E01B27/08	9	the track having been taken-up (E01B27/11 takes precedence)	E01B27/08	E01B27/08		96
E01B27/10	9	without taking-up track (E01B27/11 takes precedence)	E01B27/10	E01B27/10		333
E01B27/102	10	{Removing unwanted material without removing the ballast}	E01B27/10	E01B27/10		53
E01B27/105	10	{the track having been lifted}	E01B27/10	E01B27/10		138
E01B27/107	10	{along between the tracks only}	E01B27/10	E01B27/10		59
E01B27/11	9	combined with concurrent renewal of track components	E01B27/11	E01B27/11		110
E01B27/12	8	Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast	E01B27/12	E01B27/12		116
E01B27/13	9	Packing sleepers, with or without concurrent work on the track (preforming ballast cores or seats for sleepers E01B27/02)	E01B27/13	E01B27/13		136
E01B27/14	10	Manual tools or hand-held power tools therefor	E01B27/14	E01B27/14		153
E01B27/16	10	Sleeper-tamping machines	E01B27/16	E01B27/16		771
E01B27/17	11	combined with means for lifting, levelling or slewing the track	E01B27/17	E01B27/17		496
E01B27/18	11	by introducing additional fresh material under the sleepers, e.g. by the measured-shovel method, by the blowing method	E01B27/18	E01B27/18		124
E01B27/20	9	Compacting the material of the track-carrying ballastway, e.g. by vibrating the track, by surface vibrators (of trackless ballastway E01B27/02; for packing sleepers E01B27/12)	E01B27/20	E01B27/20		226
E01B29/00	7	Laying, rebuilding, or taking-up tracks; Tools or machines therefor (E01B27/00, E01B31/00 take precedence)	E01B29/00	E01B29/00		907
E01B29/005	8	{Making of concrete parts of the track in situ}	E01B29/00	E01B29/00		585
E01B29/02	8	Transporting, laying, removing, or renewing lengths of assembled track, assembled switches, or assembled crossings (E01B29/04 takes precedence)	E01B29/02	E01B29/02		625
E01B29/04	8	Lifting or levelling of tracks (lifting devices in general B66F)	E01B29/04	E01B29/04		473
E01B29/05	8	Transporting, laying, removing, or renewing both rails and sleepers (as assembled units E01B29/02)	E01B29/05	E01B29/05		317
E01B29/06	8	Transporting, laying, removing or renewing sleepers (E01B29/05 takes precedence; carrying devices B65G7/12)	E01B29/06	E01B29/06		581
E01B29/09	9	under, or from under, installed rails	E01B29/09	E01B29/09		76
E01B29/10	10	for inserting or removing sleepers	E01B29/10	E01B29/10		366
E01B29/11	11	Removal involving destruction of the sleeper, e.g. the sectioning thereof	E01B29/11	E01B29/11		33
E01B29/13	10	for moving sleepers in a direction parallel to the rails, e.g. for spacing or aligning them (E01B29/10 takes precedence)	E01B29/13	E01B29/13		77
E01B29/14	10	for lifting sleepers up to the rails (lifting devices in general B66F)	E01B29/14	E01B29/14		103
E01B29/16	8	Transporting, laying, removing, or replacing rails; Moving rails placed on sleepers in the track (E01B29/05 takes precedence; moving or tilting heavy loads in general B65G7/00)	E01B29/16	E01B29/16		859
E01B29/17	9	Lengths of rails assembled into strings, e.g. welded together	E01B29/17	E01B29/17		210
E01B29/20	9	Moving rails placed on installed sleepers in the plane track	E01B29/20	E01B29/20		209
E01B29/22	9	Raising rails from sleepers, e.g. for inserting sole-plates (lifting devices in general B66F)	E01B29/22	E01B29/22		111
E01B29/24	8	Fixing or removing detachable fastening means or accessories thereof; Pre-assembling track components by detachable fastening means (E01B29/02, E01B31/26 take precedence)	E01B29/24	E01B29/24		412
E01B29/26	9	the fastening means being spikes (E01B29/16 takes precedence; hand-held tools for nail or staple driving or extracting B25C)	E01B29/26	E01B29/26		303
E01B29/28	9	the fastening means being of screw-and-nut type (portable apparatus for fixing or removing screws or the like B25B); Apparatus therefor, adapted to additionally drilling holes	E01B29/28	E01B29/28		368
E01B29/29	10	for horizontally-arranged fastening elements, e.g. fish-bolts	E01B29/29	E01B29/29		20
E01B29/32	8	Installing or removing track components, not covered by the preceding groups, e.g. sole-plates, rail anchors (E01B31/26 takes precedence)	E01B29/32	E01B29/32		395
E01B29/40	8	Means or arrangements for temporarily supporting laid tracks, or rails or sleepers in the track (temporary fishplates E01B11/18)	E01B29/40	E01B29/40		131
E01B29/42	8	Undetachably joining or fastening track components in or on the track, e.g. by welding, by gluing; Pre-assembling track components by gluing; Sealing joints with filling components (E01B31/26 takes precedence; independent heating means E01B31/18; welding in general B23K; gluing metal parts in general F16B11/00)	E01B29/42	E01B29/42		100
E01B29/44	9	Methods for effecting joining of rails in the track, e.g. taking account of ambient temperature	E01B29/44	E01B29/44		62
E01B29/46	9	Devices for holding, positioning, or urging together the rail ends (adjusting the joint by moving rails E01B29/20)	E01B29/46	E01B29/46		136
E01B31/00	7	Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor (characterised by features independent of use on assembled track B21, B23&#160;-&#160;B25, B27)	E01B31/00	E01B31/00		193
E01B31/02	8	Working rail or other metal track components on the spot	E01B31/02	E01B31/02		176
E01B31/04	9	Sectioning or slitting, e.g. by sawing, shearing, flame-cutting	E01B31/04	E01B31/04		136
E01B31/06	9	Making holes, e.g. by drilling, punching, flame-cutting	E01B31/06	E01B31/06		156
E01B31/08	9	Bending, e.g. for straightening rails or rail joints (for aligning rail ends to be welded E01B29/46)	E01B31/08	E01B31/08		76
E01B31/12	9	Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails	E01B31/12	E01B31/12		181
E01B31/13	10	by milling	E01B31/13	E01B31/13		134
E01B31/15	10	by planing or filing	E01B31/15	E01B31/15		103
E01B31/17	10	by grinding	E01B31/17	E01B31/17		1177
E01B31/175	11	{using grinding belts}	E01B31/17	E01B31/17		92
E01B31/18	9	Reconditioning or repairing worn or damaged parts on the spot, e.g. applying inlays, building-up rails by welding (E01B31/04&#160;-&#160;E01B31/12 take precedence); Heating or cooling of parts on the spot, e.g. for reducing joint gaps, for hardening rails	E01B31/18	E01B31/18		366
E01B31/20	8	Working or treating non-metal sleepers in or on the line, e.g. marking, creosoting (working metal sleepers E01B31/02)	E01B31/20	E01B31/20		101
E01B31/22	9	Cutting or grinding wooden sleepers, e.g. for forming rail seats (E01B31/24 takes precedence)	E01B31/22	E01B31/22		84
E01B31/23	10	Sectioning (combined with removal of segments from track E01B29/11)	E01B31/23	E01B31/23		10
E01B31/24	9	Forming, treating, reconditioning, or cleaning holes in sleepers; Drilling-templates (E01B29/28, E01B31/26 take precedence)	E01B31/24	E01B31/24		78
E01B31/26	9	Inserting or removing inserts or fillings for holes in sleepers, e.g. plugs, sleeves	E01B31/26	E01B31/26		100
E01B31/28	9	Applying or removing anti-splitting or like reinforcing means (E01B31/26 takes precedence; straps or bands therefor E01B3/08)	E01B31/28	E01B31/28		48
E01B33/00	7	Machines or devices for shifting tracks, with or without lifting, e.g. for aligning track, for shifting excavator track (combined with sleeper packing machines E01B27/17)	E01B33/00	E01B33/00		86
E01B33/02	8	for slewing, i.e. transversely shifting, in steps	E01B33/02	E01B33/02		140
E01B33/04	9	Manual tools; Devices not mounted on vehicles	E01B33/04	E01B33/04		106
E01B33/06	8	for slewing in a continuous operation, e.g. for tracks which carry excavators	E01B33/06	E01B33/06		33
E01B33/08	9	Boom track-slewing machines	E01B33/08	E01B33/08		39
E01B33/10	9	Bridge track-slewing machines	E01B33/10	E01B33/10		51
E01B33/12	9	Combined boom and bridge track-slewing machines	E01B33/12	E01B33/12		18
E01B33/18	9	Details not peculiar to a particular type of machine	E01B33/18	E01B33/18		77
E01B33/21	10	Arrangement or construction of rollers moving the rails	E01B33/21	E01B33/21		
E01B35/00	7	Applications of measuring apparatus or devices for track-building purposes (apparatus on locomotives or cars to indicate or record bad track sections B61K9/00; measuring angles, linear dimensions, or irregularities in general G01B, G01C)	E01B35/00	E01B35/00		1184
E01B35/02	8	for spacing, for cross levelling; for laying-out curves	E01B35/02	E01B35/02		374
E01B35/04	9	Wheeled apparatus	E01B35/04	E01B35/04		208
E01B35/06	8	for measuring irregularities in longitudinal direction	E01B35/06	E01B35/06		178
E01B35/08	9	for levelling	E01B35/08	E01B35/08		80
E01B35/10	9	for aligning	E01B35/10	E01B35/10		49
E01B35/12	8	for measuring movement of the track or of the components thereof under rolling loads, e.g. depression of sleepers, increase of gauge	E01B35/12	E01B35/12		226
E01B37/00	7	Making, maintaining, renewing, or taking-up the ballastway or the track, not provided for in a single one of groups E01B27/00&#160;-&#160;E01B35/00	E01B37/00	E01B37/00		504
E01B2201/00	7	Fastening or restraining methods	CPCONLY	E01B2201/00		45
E01B2201/02	8	by wedging action	CPCONLY	E01B2201/02		241
E01B2201/04	8	by bolting, nailing or the like	CPCONLY	E01B2201/04		586
E01B2201/06	8	by eccentric or levering action	CPCONLY	E01B2201/06		29
E01B2201/08	8	by plastic or elastic deformation of fastener	CPCONLY	E01B2201/08		742
E01B2201/10	8	in alternative ways, e.g. glueing, welding, form-fits	CPCONLY	E01B2201/10		264
E01B2202/00	7	Characteristics of moving parts of rail systems, e.g. switches, special frogs, tongues	CPCONLY	E01B2202/00		9
E01B2202/02	8	Nature of the movement	CPCONLY	E01B2202/02		21
E01B2202/021	9	Turning or tilting or elastically bending	CPCONLY	E01B2202/021		9
E01B2202/022	10	about horizontal axis	CPCONLY	E01B2202/022		34
E01B2202/024	10	about vertical axis	CPCONLY	E01B2202/024		87
E01B2202/025	9	Pure translation	CPCONLY	E01B2202/025		95
E01B2202/027	9	Including a component perpendicular to the plane of the rails	CPCONLY	E01B2202/027		51
E01B2202/028	10	Movement along an inclined surface	CPCONLY	E01B2202/028		7
E01B2202/04	8	Nature of the support or bearing	CPCONLY	E01B2202/04		20
E01B2202/042	9	Sliding	CPCONLY	E01B2202/042		130
E01B2202/044	9	Rolling	CPCONLY	E01B2202/044		15
E01B2202/046	10	with rolls on fixed part	CPCONLY	E01B2202/046		64
E01B2202/048	10	with rolls on moving part	CPCONLY	E01B2202/048		29
E01B2202/06	9	Use of friction-reducing surfaces	CPCONLY	E01B2202/06		75
E01B2202/08	8	Locking devices or mechanisms for inhibiting movement	CPCONLY	E01B2202/08		103
E01B2203/00	7	Devices for working the railway-superstructure	CPCONLY	E01B2203/00		14
E01B2203/01	8	with track	CPCONLY	E01B2203/01		11
E01B2203/012	9	present, i.e. in its normal position	CPCONLY	E01B2203/012		95
E01B2203/015	9	present but lifted	CPCONLY	E01B2203/015		121
E01B2203/017	9	removed or not present yet	CPCONLY	E01B2203/017		59
E01B2203/02	8	Removing or re-contouring ballast	CPCONLY	E01B2203/02		32
E01B2203/021	9	Blowing	CPCONLY	E01B2203/021		
E01B2203/022	9	Horizontal chain	CPCONLY	E01B2203/022		33
E01B2203/024	9	Inclined chain	CPCONLY	E01B2203/024		31
E01B2203/025	9	Suction	CPCONLY	E01B2203/025		13
E01B2203/027	9	Sweeping	CPCONLY	E01B2203/027		32
E01B2203/028	9	Alternative ways	CPCONLY	E01B2203/028		9
E01B2203/03	8	Displacing or storing ballast	CPCONLY	E01B2203/03		6
E01B2203/032	9	with special use or configuration of conveyor belts	CPCONLY	E01B2203/032		58
E01B2203/034	9	using storing containers	CPCONLY	E01B2203/034		13
E01B2203/036	10	fixed to vehicle	CPCONLY	E01B2203/036		15
E01B2203/038	10	detachable from the vehicle	CPCONLY	E01B2203/038		34
E01B2203/04	8	Cleaning or reconditioning ballast or ground beneath	CPCONLY	E01B2203/04		32
E01B2203/042	9	in situ, e.g. vacuum-cleaners	CPCONLY	E01B2203/042		29
E01B2203/045	9	the ballast having been taken up	CPCONLY	E01B2203/045		36
E01B2203/047	9	Adding material, e.g. tar, glue, protective layers	CPCONLY	E01B2203/047		58
E01B2203/06	8	Placing ballast	CPCONLY	E01B2203/06		15
E01B2203/062	9	New ballast	CPCONLY	E01B2203/062		29
E01B2203/065	9	Re-use of ballast	CPCONLY	E01B2203/065		37
E01B2203/067	9	Special methods for posing or quantifying ballast	CPCONLY	E01B2203/067		66
E01B2203/08	8	Levelling ballast or ground beneath	CPCONLY	E01B2203/08		27
E01B2203/083	9	Ploughs	CPCONLY	E01B2203/083		42
E01B2203/086	9	Rotating brooms	CPCONLY	E01B2203/086		27
E01B2203/10	8	Track-lifting or-lining devices or methods	CPCONLY	E01B2203/10		391
E01B2203/12	8	Tamping devices	CPCONLY	E01B2203/12		324
E01B2203/122	9	for straight track	CPCONLY	E01B2203/122		25
E01B2203/125	9	adapted for switches or crossings	CPCONLY	E01B2203/125		57
E01B2203/127	9	vibrating the track surface	CPCONLY	E01B2203/127		89
E01B2203/14	8	Way of locomotion or support	CPCONLY	E01B2203/14		75
E01B2203/141	9	on the track to be treated	CPCONLY	E01B2203/141		247
E01B2203/143	9	on a side-track	CPCONLY	E01B2203/143		31
E01B2203/145	9	on the ballast	CPCONLY	E01B2203/145		71
E01B2203/146	9	using other means than driven wheels as propulsion means	CPCONLY	E01B2203/146		35
E01B2203/148	9	having wheelsets that can be displaced horizontally or vertically	CPCONLY	E01B2203/148		52
E01B2203/15	8	Reducing impact of devices on environment	CPCONLY	E01B2203/15		24
E01B2203/16	8	Guiding or measuring means, e.g. for alignment, canting, stepwise propagation	CPCONLY	E01B2203/16		990
E01B2203/17	8	continually advancing	CPCONLY	E01B2203/17		19
E01B2204/00	7	Characteristics of the track and its foundations	CPCONLY	E01B2204/00		45
E01B2204/01	8	Elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete	CPCONLY	E01B2204/01		479
E01B2204/02	8	Ballast bags	CPCONLY	E01B2204/02		28
E01B2204/03	8	Injecting, mixing or spraying additives into or onto ballast or underground	CPCONLY	E01B2204/03		166
E01B2204/04	8	Direct mechanical or chemical fixing of sleepers onto underground	CPCONLY	E01B2204/04		43
E01B2204/05	8	Use of geotextiles	CPCONLY	E01B2204/05		99
E01B2204/06	8	Height or lateral adjustment means or positioning means for slabs, sleepers or rails	CPCONLY	E01B2204/06		447
E01B2204/07	8	Drainage	CPCONLY	E01B2204/07		203
E01B2204/08	8	Deep or vertical foundation	CPCONLY	E01B2204/08		146
E01B2204/09	8	Ballastless systems	CPCONLY	E01B2204/09		452
E01B2204/10	8	Making longitudinal or transverse sleepers or slabs in situ or embedding them	CPCONLY	E01B2204/10		126
E01B2204/11	8	Embedded tracks, using prefab elements or injecting or pouring a curable material	CPCONLY	E01B2204/11		207
E01B2204/12	8	Floating rails or sleepers	CPCONLY	E01B2204/12		71
E01B2204/13	8	Dowels for slabs, sleepers or rail-fixings	CPCONLY	E01B2204/13		94
E01B2204/14	8	Vegetation on or around railway-tracks	CPCONLY	E01B2204/14		66
E01B2204/15	8	Layout or geometry of the track	CPCONLY	E01B2204/15		101
E01B2204/16	8	Specific granulometry of the ballast	CPCONLY	E01B2204/16		16
E01B2205/00	7	Electrical insulation of railway track parts	CPCONLY	E01B2205/00		173
