IPC 6 English version E21D !A-E21D 23/26

E21D-E21D02326

SECTION E– FIXED CONSTRUCTIONS

E 21

EARTH DRILLING; MINING

E 21 D

SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS (soil conditioning or soil stabilising materials C 09 K 17/00; drilling or cutting machines for mining or quarrying E 21 C; safety devices, transport, rescue, ventilation or drainage E 21 F) [2,6]

Notes

(1)

This subclass covers methods or apparatus for making or lining tunnels, galleries or large underground chambers, using underground mining methods only, i.e. not involving disturbance of the ground surface. [6]

(2)

This subclass does not cover underground spaces made by foundation engineering, i.e. involving disturbance of the ground surface, which are covered by subclass E 02 D. [6]

Shafts

Sinking shafts

by hand

mechanically (E 21 D 1/08 takes precedence)

with grabs

with shaft-boring cutters (drilling machines E 21 B, E 21 C)

while moving the lining downwards

Preparation of the ground

by freezing

Freezing apparatus

by petrification (grouting anchoring-bolts E 21 D 20/02)

Raising shafts, i.e. working upwards from the bottom

Lining shafts; Linings therefor (E 21 D 11/00 takes precedence) [3]

using prefabricated lining lowered into a hole filled with liquid or viscous mass

012

Use of fluid-tight or anti-friction material on outside of, or between, lining layers

016

Bearer curbs

with wood (E 21 D 5/01, E 21 D 5/012, E 21 D 5/016 take precedence)

with brick, concrete, stone, or similar building materials (E 21 D 5/01, E 21 D 5/012, E 21 D 5/016 take precedence)

with iron or steel (E 21 D 5/01, E 21 D 5/012, E 21 D 5/016 take precedence)

in the form of profiled parts

in the form of tubbing

with combinations of different materials, e.g. wood, metal, concrete (E 21 D 5/01, E 21 D 5/012, E 21 D 5/016 take precedence)

Accessories for making shaft linings, e.g. suspended cradles, shutterings

Shaft equipment, e.g. timbering within the shaft

Arrangement of guides for cages in shafts; Connection of guides for cages to shaft walls (guideways or guides for elevators B 66 B 7/02)

Tunnels; Galleries; Large underground chambers; Linings therefor (galleries protecting against falling rocks or avalanches E 01 F 7/04; pressure galleries, galleries specially adapted to house pressure water conduits E 02 B 9/06; sewers E 03 F) [3,6]

Tunnels or galleries, with or without linings; Methods or apparatus for making thereof (linings per se E 21 D 11/00); Layout of tunnels or galleries [3]

Driving inclined tunnels or galleries [3]

Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for

Making by using a driving shield [2]

with additional boring or cutting means [2]

Making by using boring or cutting machines (E 21 D 9/08 takes precedence; mining picks E 21 C 35/18) [3]

Devices for removing or hauling away excavated material or spoil; Working or loading platforms (underground transport E 21 F 13/00) [2]

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]

10/

(transferred to E 02 D 29/045, E 02 D 29/063)

10/

(transferred to E 02 D 29/045)

10/

(transferred to E 02 D 29/05)

10/

(transferred to E 02 D 29/055)

10/

(transferred to E 02 D 29/063)

10/

(transferred to E 02 D 29/067)

10/

(transferred to E 02 D 29/07)

10/

(transferred to E 02 D 29/073)

10/

(transferred to E 02 D 29/077)

11/

Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling (E 21 D 15/00 to E 21 D 23/00 take precedence; specially for shafts E 21 D 5/00; lining pressure water galleries, linings therefor E 02 B 9/06) [2]

11/

Lining predominantly with wood [2]

11/

using timber-setting machines

11/

Lining with building materials (E 21 D 11/02, E 21 D 11/14 take precedence) [2]

11/

using compressible insertions

11/

with bricks

11/

using brick-laying machines

11/

with preformed concrete slabs

11/

with concrete cast in situ; Shuttering or other equipment adapted therefor

11/

Temporary supports for use during building; Accessories

11/

Lining predominantly with metal [2]

11/

Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members (insulation E 21 D 11/38) [2]

11/

Arch members

11/

Special cross-sections, e.g. corrugated

11/

Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure

11/

Knuckle joints or links between arch members

11/

Shoes for connecting arch members to longitudinal struts

11/

Longitudinal struts

11/

Bases for lower arch members (for props E 21 D 15/54)

11/

Joints between vertical props and horizontal top bars (end caps forming part of the props E 21 D 15/54)

11/

Linings or supports specially shaped for tunnels or galleries of irregular cross-section [2,3]

11/

Waterproofing (in general E 02 D 31/00); Heat insulating; Soundproofing; Electric insulating (for building constructions in general E 04 B 1/62) [2]

11/

Devices or apparatus specially adapted for handling or placing units of linings for tunnels or galleries [2]

13/

Large underground chambers; Methods or apparatus for making them (lining E 21 D 11/00) [6]

13/

Methods

13/

Special equipment; Accessories

Working-face supports

15/

Props (in the building art E 04 G 25/00); Chocks

15/

Non-telescopic props

15/

with wooden prop parts joined by double conical connectors

15/

with parts joined by a lock, with or without slight axial adjustability

15/

with toggle joint connection

15/

with dog-clutch or pin-and-hole connection

15/

with locking devices located near head or foot

15/

Telescopic props (general means for fixing telescopic parts together F 16 B)

15/

Means counteracting entry of dirt; Built-in cleaning devices

15/

with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure

15/

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

15/

with pawl, pin, cross-piece, or the like engaging with ratchet teeth, notches, holes, or the like spaced apart at intervals

15/

with member, pin, cross-piece, or the like ruptured, sheared through, or permanently deformed upon excessive pressure

15/

with axial screw-and-nut, rack-and-worm, or like mechanism

15/

with screw, worm, or the like not self-locking but normally prevented from rotation by friction members which slip upon excessive pressure

15/

with parts held relatively to each other by friction or gripping, e.g. using wedges

15/

by means expanded or contracted by pressure applied through the medium of a fluid or quasi-fluid, e.g. rubber

15/

by a deformable collar

15/

by axially-moving balls, rollers, or the like

15/

by a tiltable collar surrounding one or both parts

15/

with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations

15/

Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted

15/

with special parts to influence the friction

15/

Details of wedges (friction linings or pads E 21 D 15/42)

15/

Hydraulic, pneumatic, or hydraulic-pneumatic props

15/

having closed fluid system, e.g. with built-in pumps or accumulators

15/

with load-measuring devices; with alarm devices

15/

Chocks or the like

15/

Component parts or details of props (E 21 D 15/43, E 21 D 15/58, E 21 D 15/60 take precedence)

15/

502

Prop bodies characterised by their shape, e.g. of specified cross-section

15/

specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves

15/

Extensible units located above or below standard props

15/

Details of the ends of props (for permitting step-by-step movement E 21 D 23/06)

15/

of prop heads

15/

Details of locks of telescopic props

15/

Devices for setting props

15/

582

for mechanical props

15/

for hydraulic, pneumatic, or hydraulic-pneumatic props

15/

Devices for withdrawing props or chocks

17/

Caps for supporting mine roofs

17/

characterised by the shape of the cap, e.g. of specified cross-section

17/

Cantilever extension or similar protecting devices

17/

022

Auxiliary devices for temporary support of roof-supporting beams whilst assembling

17/

Brackets for roof-supporting bars

17/

for use in longwall working

17/

hydraulically extensible

17/

054

hydraulically pivotable

17/

for use in drifting galleries

17/

Cap joints for obtaining a coal-face free of pit-props

17/

082

of sliding type

17/

086

of articulated type

17/

Details of mine caps for engaging the tops of pit-props, with or without retaining-plates; Retaining-plates

19/

Provisional protective covers for working space (E 21 D 9/06, E 21 D 23/00 take precedence) [3]

19/

for use in longwall working

19/

for use in drifting galleries

19/

Arrangements for applying the covers [6]

20/

Setting anchoring-bolts (anchoring bolts for shafts, tunnels or galleries E 21 D 21/00; means for anchoring structural elements or bulkheads specially adapted to foundation engineering E 02 D 5/74; dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose F 16 B 13/00) [5]

20/

with provisions for grouting

21/

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 F 16 B 13/00) [5]

21/

having means for indicating tension (screwed connections specially modified for indicating tensile load F 16 B 31/02)

23/

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 E 21 F 13/08)

23/

having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support [4]

23/

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 (E 21 D 23/14 takes precedence)

23/

Special mine caps or special tops of pit-props for permitting step-by-step movement

23/

Advancing mechanisms (E 21 D 23/16 takes precedence)

23/

with advancing devices separate from the supporting construction

23/

Control, e.g. using remote control (E 21 D 23/16 takes precedence)

23/

Effecting automatic sequential movement of supports, e.g. one behind the other

23/

Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices

23/

of advancing mechanisms

23/

for sequential movement, e.g. one behind the other

23/

incorporated in mine caps

23/

the advancing mechanisms being separate from the supporting construction

23/

Hydraulic or pneumatic control