E
SECTION E — FIXED CONSTRUCTIONS
  
EARTH DRILLING; MINING
 E21
EARTH DRILLING; MINING
 E21

Note(s)

In this class, the following term is used with the meaning indicated:

  • "drilling" covers boring and vice versa.

 E21D
SHAFTS; TUNNELS; GALLERIES (drilling or cutting machines for mining or quarrying E21C; safety devices, transport, rescue, ventilation or drainage E21F)  [2]
 E21D 1/00 - 
E21D 7/00
Shafts
 E21D 1/00
Sinking shafts
 E21D 1/02
·  by hand
 E21D 1/03
·  mechanically (E21D 1/08 takes precedence)
 E21D 1/04
·  ·  with grabs
 E21D 1/06
·  ·  with shaft-boring cutters (drilling machines E21B, E21C)
 E21D 1/08
·  while moving the lining downwards
 E21D 1/10
·  Preparation of the ground
 E21D 1/12
·  ·  by freezing
 E21D 1/14
·  ·  ·  Freezing apparatus
 E21D 1/16
·  ·  by petrification (grouting anchoring-bolts E21D 20/02)
 E21D 3/00
Raising shafts, i.e. working upwards from the bottom
 E21D 5/00
Lining shafts; Linings therefor (E21D 11/00 takes precedence)  [3]
 E21D 5/01
·  using prefabricated lining lowered into a hole filled with liquid or viscous mass
 E21D 5/012
·  Use of fluid-tight or anti-friction material on outside of, or between, lining layers
 E21D 5/016
·  Bearer curbs
 E21D 5/02
·  with wood (E21D 5/01, E21D 5/012, E21D 5/016 take precedence)
 E21D 5/04
·  with brick, concrete, stone, or similar building materials (E21D 5/01, E21D 5/012, E21D 5/016 take precedence)
 E21D 5/06
·  with iron or steel (E21D 5/01, E21D 5/012, E21D 5/016 take precedence)
 E21D 5/08
·  ·  in the form of profiled parts
 E21D 5/10
·  ·  in the form of tubbing
 E21D 5/11
·  with combinations of different materials, e.g. wood, metal, concrete (E21D 5/01, E21D 5/012, E21D 5/016 take precedence)
 E21D 5/12
·  Accessories for making shaft linings, e.g. suspended cradles, shutterings
 E21D 7/00
Shaft equipment, e.g. timbering within the shaft
 E21D 7/02
·  Arrangement of guides for cages in shafts; Connection of guides for cages to shaft walls (guideways or guides for elevators B66B 7/02)
 E21D 9/00 - 
E21D 13/00
Tunnels; Galleries; Linings therefor (galleries protecting against falling rocks or avalanches E01F 7/04; pressure galleries, galleries specially adapted to house pressure water conduits E02B 9/06; tunnels or galleries specially adapted to house conduits in general E02D 29/10; sewers E03F)  [3]
 E21D 9/00
Tunnels or galleries, with or without linings; Methods or apparatus for making thereof (E21D 10/00 takes precedence; linings per se E21D 11/00); Layout of tunnels or galleries  [3]
 E21D 9/02
·  Driving inclined tunnels or galleries  [3]
 E21D 9/04
·  Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for
 E21D 9/06
·  Making by using a driving shield  [2]
 E21D 9/08
·  ·  with additional boring or cutting means  [2]
 E21D 9/10
·  Making by using boring or cutting machines (E21D 9/08 takes precedence)  [3]
 E21D 9/12
·  Devices for removing or hauling away excavated material or spoil; Working or loading platforms (underground transport E21F 13/00)  [2]
 E21D 9/14
·  Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings  [3]
 E21D 10/00
Tunnels or galleries built in the open air or by methods involving disturbance of the ground surface all along the location line; Tunnels submerged into or built in open water; Methods for making thereof (excavating per se E02D; making conduits in situ, e.g. of concrete, E02D 29/10; laying pipes F16L 1/00)  [3]
 E21D 10/02
·  Land tunnels or galleries  [3]
 E21D 10/04
·  ·  at least part of the cross section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench, side-walls moulded in open cuts  [3]
 E21D 10/06
·  ·  ·  further excavation of the cross section proceeding underneath an already installed part of the tunnel or gallery, e.g. the roof  [3]
 E21D 10/08
·  Tunnels submerged into or built in open water (construction or placing of caissons in general E02D 23/00; joining caissons to each other under water in general E02D 25/00; construction of independent underwater structures E02D 29/06)  [3]
 E21D 10/10
·  ·  Floating tunnels; Submerged-bridge tunnels, i.e. tunnels supported by piers or the like above the water-bed (pontoons or floating bridges E01D 15/14)  [3]
 E21D 10/12
·  ·  Tunnels or shuttering therefor preconstructed as a whole or continuously made, and moved into place on the water-bed, e.g. into a preformed trench  [3]
 E21D 10/14
·  ·  Tunnels or shuttering therefor assembled from sections individually sunk on to, or laid on, the water-bed, e.g. in a preformed trench (caisson-type sections lowered on to the water-bed E21D 10/16; foundations E02D 27/00)  [3]
 E21D 10/16
·  ·  Tunnels at least partially built beneath the water-bed characterised by being made by methods involving disturbance thereof all along the location line, e.g. by cut-and-cover or caisson methods  [3]
 E21D 11/00
Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling (E21D 15/00-E21D 23/00 take precedence; specially for shafts E21D 5/00; lining pressure water galleries, linings therefor E02B 9/06)  [2]
 E21D 11/02
·  Lining predominantly with wood  [2]
 E21D 11/03
·  ·  using timber-setting machines
 E21D 11/04
·  Lining with building materials (E21D 11/02, E21D 11/14 take precedence)  [2]
 E21D 11/05
·  ·  using compressible insertions
 E21D 11/06
·  ·  with bricks
 E21D 11/07
·  ·  ·  using brick-laying machines
 E21D 11/08
·  ·  with preformed concrete slabs
 E21D 11/10
·  ·  with concrete cast in situ; Shuttering or other equipment adapted therefor
 E21D 11/12
·  ·  Temporary supports for use during building; Accessories
 E21D 11/14
·  Lining predominantly with metal  [2]
 E21D 11/15
·  ·  Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members (insulation E21D 11/38)  [2]
 E21D 11/18
·  ·  Arch members
 E21D 11/20
·  ·  ·  Special cross-sections, e.g. corrugated
 E21D 11/22
·  ·  ·  Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
 E21D 11/24
·  ·  ·  Knuckle joints or links between arch members
 E21D 11/26
·  ·  ·  Shoes for connecting arch members to longitudinal struts
 E21D 11/28
·  ·  Longitudinal struts
 E21D 11/30
·  ·  Bases for lower arch members (for props E21D 15/54)
 E21D 11/34
·  ·  Joints between vertical props and horizontal top bars (end caps forming part of the props E21D 15/54)
 E21D 11/36
·  ·  Linings or supports specially shaped for tunnels or galleries of irregular cross-section  [2,3]
 E21D 11/38
·  Waterproofing (in general E02D 31/00); Heat insulating; Soundproofing; Electric insulating (for building constructions in general E04B 1/62)  [2]
 E21D 11/40
·  Devices or apparatus specially adapted for handling or placing units of linings for tunnels or galleries  [2]
 E21D 13/00
Making large underground chambers, with or without linings, by underground methods only, e.g. for loading-sites, for underground plants (lining per se E21D 11/00; making by foundation engineering E02D; large underground spaces made by foundation engineering, layout thereof E02D 29/04)
 E21D 13/02
·  Methods
 E21D 13/04
·  Special equipment; Accessories
 E21D 15/00 - 
E21D 23/00
Working-face supports
 E21D 15/00
Props (in the building art E04G 25/00); Chocks
 E21D 15/02
·  Non-telescopic props
 E21D 15/04
·  ·  with wooden prop parts joined by double conical connectors
 E21D 15/06
·  ·  with parts joined by a lock, with or without slight axial adjustability
 E21D 15/08
·  ·  ·  with toggle joint connection
 E21D 15/10
·  ·  ·  with dog-clutch or pin-and-hole connection
 E21D 15/12
·  ·  ·  with locking devices located near head or foot
 E21D 15/14
·  Telescopic props (general means for fixing telescopic parts together F16B)
 E21D 15/15
·  ·  Means counteracting entry of dirt; Built-in cleaning devices
 E21D 15/16
·  ·  with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
 E21D 15/18
·  ·  ·  with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure
 E21D 15/20
·  ·  ·  with pawl, pin, cross-piece, or the like engaging with ratchet teeth, notches, holes, or the like spaced apart at intervals
 E21D 15/22
·  ·  ·  with member, pin, cross-piece, or the like ruptured, sheared through, or permanently deformed upon excessive pressure
 E21D 15/24
·  ·  ·  with axial screw-and-nut, rack-and-worm, or like mechanism
 E21D 15/26
·  ·  ·  ·  with screw, worm, or the like not self-locking but normally prevented from rotation by friction members which slip upon excessive pressure
 E21D 15/28
·  ·  with parts held relatively to each other by friction or gripping, e.g. using wedges
 E21D 15/30
·  ·  ·  by means expanded or contracted by pressure applied through the medium of a fluid or quasi-fluid, e.g. rubber
 E21D 15/32
·  ·  ·  by a deformable collar
 E21D 15/34
·  ·  ·  by axially-moving balls, rollers, or the like
 E21D 15/36
·  ·  ·  by a tiltable collar surrounding one or both parts
 E21D 15/38
·  ·  ·  with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations
 E21D 15/40
·  ·  ·  Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted
 E21D 15/42
·  ·  ·  with special parts to influence the friction
 E21D 15/43
·  ·  ·  Details of wedges (friction linings or pads E21D 15/42)
 E21D 15/44
·  ·  Hydraulic, pneumatic, or hydraulic-pneumatic props
 E21D 15/45
·  ·  ·  having closed fluid system, e.g. with built-in pumps or accumulators
 E21D 15/46
·  ·  with load-measuring devices; with alarm devices
 E21D 15/48
·  Chocks or the like
 E21D 15/50
·  Component parts or details of props (E21D 15/43, E21D 15/58, E21D 15/60 take precedence)
 E21D 15/502
·  ·  Prop bodies characterised by their shape, e.g. of specified cross-section
 E21D 15/51
·  ·  specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
 E21D 15/52
·  ·  Extensible units located above or below standard props
 E21D 15/54
·  ·  Details of the ends of props (for permitting step-by-step movement E21D 23/06)
 E21D 15/55
·  ·  ·  of prop heads
 E21D 15/56
·  ·  Details of locks of telescopic props
 E21D 15/58
·  Devices for setting props
 E21D 15/582
·  ·  for mechanical props
 E21D 15/59
·  ·  for hydraulic, pneumatic, or hydraulic-pneumatic props
 E21D 15/60
·  Devices for withdrawing props or chocks
 E21D 17/00
Caps for supporting mine roofs
 E21D 17/01
·  characterised by the shape of the cap, e.g. of specified cross-section
 E21D 17/02
·  Cantilever extension or similar protecting devices
 E21D 17/022
·  ·  Auxiliary devices for temporary support of roof-supporting beams whilst assembling
 E21D 17/03
·  ·  Brackets for roof-supporting bars
 E21D 17/04
·  ·  for use in longwall working
 E21D 17/05
·  ·  ·  hydraulically extensible
 E21D 17/054
·  ·  ·  hydraulically pivotable
 E21D 17/06
·  ·  for use in drifting galleries
 E21D 17/08
·  ·  Cap joints for obtaining a coal-face free of pit-props
 E21D 17/082
·  ·  ·  of sliding type
 E21D 17/086
·  ·  ·  of articulated type
 E21D 17/10
·  Details of mine caps for engaging the tops of pit-props, with or without retaining-plates; Retaining-plates
 E21D 19/00
Provisional protective covers for working space (E21D 9/06, E21D 23/00 take precedence)  [3]
 E21D 19/02
·  for use in longwall working
 E21D 19/04
·  for use in drifting galleries
 E21D 20/00
Setting anchoring-bolts (anchoring bolts for shafts, tunnels or galleries E21D 21/00; means for anchoring structural elements or bulkheads specially adapted to foundation engineering E02D 5/74; dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose F16B 13/00)  [5]
 E21D 20/02
·  with provisions for grouting
 E21D 21/00
Anchoring-bolts for roof, floor, or shaft-lining protection (dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpuse F16B 13/00)  [5]
 E21D 21/02
·  having means for indicating tension (screwed connections specially modified for indicating tensile load F16B 31/02)
 E21D 23/00
Mine roof supports for step-by-step movement, e.g. in combination with provisions for shifting of conveyers, mining machines, or guides therefor (shifting of mine conveyers at the working face, per se E21F 13/08)
 E21D 23/03
·  having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support  [4]
 E21D 23/04
·  Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor (E21D 23/14 takes precedence)
 E21D 23/06
·  ·  Special mine caps or special tops of pit-props for permitting step-by-step movement
 E21D 23/08
·  Advancing mechanisms (E21D 23/16 takes precedence)
 E21D 23/10
·  ·  with advancing devices separate from the supporting construction
 E21D 23/12
·  Control, e.g. using remote control (E21D 23/16 takes precedence)
 E21D 23/14
·  ·  Effecting automatic sequential movement of supports, e.g. one behind the other
 E21D 23/16
·  Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
 E21D 23/18
·  ·  of advancing mechanisms
 E21D 23/20
·  ·  ·  for sequential movement, e.g. one behind the other
 E21D 23/22
·  ·  ·  incorporated in mine caps
 E21D 23/24
·  ·  ·  the advancing mechanisms being separate from the supporting construction
 E21D 23/26
·  ·  Hydraulic or pneumatic control