GB1477136A - Mine roof support - Google Patents

Mine roof support

Info

Publication number
GB1477136A
GB1477136A GB4862173A GB4862173A GB1477136A GB 1477136 A GB1477136 A GB 1477136A GB 4862173 A GB4862173 A GB 4862173A GB 4862173 A GB4862173 A GB 4862173A GB 1477136 A GB1477136 A GB 1477136A
Authority
GB
United Kingdom
Prior art keywords
canopy
floor beam
link
plane
pivotally connected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4862173A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Priority to GB4862173A priority Critical patent/GB1477136A/en
Priority to DE2448367A priority patent/DE2448367C3/de
Priority to US514262A priority patent/US3928981A/en
Priority to BE149684A priority patent/BE821248A/xx
Publication of GB1477136A publication Critical patent/GB1477136A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—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
    • E21D23/0427—Shield operating devices; Hinges therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • E21D23/0043—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by two or more rows of struts parallel to the working face
GB4862173A 1973-10-18 1973-10-18 Mine roof support Expired GB1477136A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB4862173A GB1477136A (en) 1973-10-18 1973-10-18 Mine roof support
DE2448367A DE2448367C3 (de) 1973-10-18 1974-10-10 Strebausbaugestell
US514262A US3928981A (en) 1973-10-18 1974-10-11 Mine proof support
BE149684A BE821248A (fr) 1973-10-18 1974-10-18 Appareil de soutenement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4862173A GB1477136A (en) 1973-10-18 1973-10-18 Mine roof support

Publications (1)

Publication Number Publication Date
GB1477136A true GB1477136A (en) 1977-06-22

Family

ID=10449293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4862173A Expired GB1477136A (en) 1973-10-18 1973-10-18 Mine roof support

Country Status (4)

Country Link
US (1) US3928981A (de)
BE (1) BE821248A (de)
DE (1) DE2448367C3 (de)
GB (1) GB1477136A (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010618A (en) * 1974-01-19 1977-03-08 Dowty Mining Equipment Limited Mine roof support
GB1526399A (en) * 1974-12-18 1978-09-27 Dowty Mining Equipment Ltd Mine roof support
GB1494284A (en) * 1975-07-19 1977-12-07 Gullick Dobson Ltd Self-advancing mine roof supports
DE2540091C2 (de) * 1975-09-09 1982-06-03 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Schildausbaugestell
DE2605068C3 (de) * 1976-02-10 1978-12-14 Thyssen Industrie Ag, 4300 Essen Kappen- und Bruchschildkonstruktion für ein Schildausbaugestell
DE2622208C2 (de) * 1976-05-19 1983-10-20 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Ausbaubock
DE2644649C3 (de) * 1976-10-02 1986-11-13 Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen Schildausbaugestell
DE2730295A1 (de) 1977-07-05 1979-01-25 Gewerk Eisenhuette Westfalia Bruchschutzeinrichtung fuer hydraulischen bockausbau u.dgl.
DE2840835C2 (de) * 1978-09-20 1986-03-06 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Schildausbaugestell für untertägige Strebbetriebe
DE2850073A1 (de) * 1978-11-18 1980-05-29 Fletcher Sutcliffe Wild Ltd Grubenausbau, insbesondere strebausbau
AT361430B (de) * 1979-01-23 1981-03-10 Voest Alpine Ag Ausbaubock
DE3131607C2 (de) * 1980-08-16 1986-12-11 Dowty Mining Equipment Ltd., Ashchurch, Tewkesbury,Gloucestershire Schildausbaugestell mit einer starr ausgebildeten Sohlkonstruktion
GB2143882B (en) * 1983-07-23 1986-11-05 Dowty Mining Equipment Ltd Shield supports suitable for use in mines
GB2188665B (en) * 1986-04-01 1990-02-21 Dobson Park Ind Mine roof supports

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1124665A (en) * 1966-04-29 1968-08-21 Gullick Ltd Improvements in or relating to mine roof supports
BE789390A (fr) * 1971-10-02 1973-01-15 Gewerk Eisenhuette Westfalia Chassis de soutenement a boucliers
US3848928A (en) * 1973-02-12 1974-11-19 Taiheiyo Coal Mining Co Ltd Pantographic wall protector and automatic controlling device thereof

Also Published As

Publication number Publication date
DE2448367A1 (de) 1975-04-24
DE2448367B2 (de) 1979-09-06
US3928981A (en) 1975-12-30
BE821248A (fr) 1975-02-17
DE2448367C3 (de) 1980-05-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee