GB2201713B - Mine roof support - Google Patents

Mine roof support

Info

Publication number: GB2201713B
Authority: GB; United Kingdom
Prior art keywords: roof support; mine roof; mine; support; roof
Prior art date: 1987-02-14
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 - Lifetime

Application number

GB8803275A

Other versions

GB2201713A (en

GB8803275D0 (en

Inventor

Colin Raymond Walters

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

Meco Mining Equipment Ltd

Original Assignee

Dowty Mining Equipment Ltd

Meco 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.)

1987-02-14

Filing date

1988-02-12

Publication date

1990-09-26

1988-02-12 Application filed by Dowty Mining Equipment Ltd, Meco Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd

1988-03-09 Publication of GB8803275D0 publication Critical patent/GB8803275D0/en

1988-09-07 Publication of GB2201713A publication Critical patent/GB2201713A/en

1990-09-26 Application granted granted Critical

1990-09-26 Publication of GB2201713B publication Critical patent/GB2201713B/en

2008-02-12 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D23/0454—Trailing plates; Coal face or goaf side sprags

Landscapes

Engineering & Computer Science (AREA)
Mining & Mineral Resources (AREA)
Architecture (AREA)
Structural Engineering (AREA)
Life Sciences & Earth Sciences (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Geology (AREA)
Revetment (AREA)
Tents Or Canopies (AREA)
Earth Drilling (AREA)

GB8803275A 1987-02-14 1988-02-12 Mine roof support Expired - Lifetime GB2201713B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB878703496A GB8703496D0 (en)	1987-02-14	1987-02-14	Mine roof support

Publications (3)

Publication Number	Publication Date
GB8803275D0 GB8803275D0 (en)	1988-03-09
GB2201713A GB2201713A (en)	1988-09-07
GB2201713B true GB2201713B (en)	1990-09-26

Family

ID=10612365

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GB878703496A Pending GB8703496D0 (en)	1987-02-14	1987-02-14	Mine roof support
GB8803275A Expired - Lifetime GB2201713B (en)	1987-02-14	1988-02-12	Mine roof support

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
GB878703496A Pending GB8703496D0 (en)	1987-02-14	1987-02-14	Mine roof support

Country Status (2)

Country	Link
DE (1)	DE3804472C2 (en)
GB (2)	GB8703496D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2214216B (en) *	1988-01-09	1992-02-05	Gullick Dobson Ltd	Mine roof supports and sprags therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1416211A (en) *	1973-02-12	1975-12-03	Taiheiyo Coal Mining Co Ltd	Self-advancing roof support incorporating a wall protector
GB2052615A (en) *	1979-06-21	1981-01-28	Hemscheidt Maschf Hermann	Hydraulic roof-support frame
US4449860A (en) *	1981-04-22	1984-05-22	Gewerkschaft Eisenhutte Westfalia	Mine roof supports

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2420244A1 (en) *	1974-04-26	1975-11-06	Rheinstahl Ag	Roof support over mining machine - has face support which swings back to rest against roof support carrier arm
SU840388A1 (en) *	1979-02-12	1981-06-23	Подмосковный Научно-Исследовательскийи Проектно-Конструкторский Угольныйинститут	Top of power roof support unit
AT360935B (en) *	1979-05-03	1981-02-10	Voest Alpine Ag	EXTENSION BLOCK
SU1010286A1 (en) *	1981-08-21	1983-04-07	Шахта "Новомосковская" Производственного Объединения "Новомосковскуголь"	Arrangement for supporting roof and working-face

1987
- 1987-02-14 GB GB878703496A patent/GB8703496D0/en active Pending
1988
- 1988-02-12 DE DE19883804472 patent/DE3804472C2/en not_active Expired - Fee Related
- 1988-02-12 GB GB8803275A patent/GB2201713B/en not_active Expired - Lifetime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1416211A (en) *	1973-02-12	1975-12-03	Taiheiyo Coal Mining Co Ltd	Self-advancing roof support incorporating a wall protector
GB2052615A (en) *	1979-06-21	1981-01-28	Hemscheidt Maschf Hermann	Hydraulic roof-support frame
US4449860A (en) *	1981-04-22	1984-05-22	Gewerkschaft Eisenhutte Westfalia	Mine roof supports

Also Published As

Publication number	Publication date
GB2201713A (en)	1988-09-07
DE3804472C2 (en)	1996-09-19
GB8703496D0 (en)	1987-03-18
GB8803275D0 (en)	1988-03-09
DE3804472A1 (en)	1988-08-25

Legal Events

Date	Code	Title	Description
2003-04-16	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
2003-10-15	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
2008-03-05	PE20	Patent expired after termination of 20 years	Effective date: 20080211

Publication	Publication Date	Title
ZA85124B (en)	1985-08-28	Mine roof support unit
PL276281A1 (en)	1989-07-10	Self-advancing roof support unit
GB2239286B (en)	1994-03-02	Mine roof support
GB2214963B (en)	1992-05-06	Mine roof supports
ZA874566B (en)	1987-12-30	Mine roof supports
GB2191236B (en)	1990-04-04	Mine roof supports
GB2199068B (en)	1991-01-09	Mine roof supports
GB8617160D0 (en)	1986-08-20	Mine roof supports
GB2196371B (en)	1990-05-09	Mine roof supports
GB2197679B (en)	1990-02-14	Mine roof support assemblies
GB2201713B (en)	1990-09-26	Mine roof support
GB2188665B (en)	1990-02-21	Mine roof supports
GB2197678B (en)	1990-04-11	Mine roof supports
GB2202569B (en)	1990-12-05	Roof support
GB8718767D0 (en)	1987-09-16	Mine roof support
GB2201986B (en)	1990-11-07	Mine roof supports
GB8712279D0 (en)	1987-07-01	Mine roof supports
GB8705558D0 (en)	1987-04-15	Mine roof supports
GB2220022B (en)	1992-06-10	Mine roof support
PL265265A1 (en)	1988-11-10	Self-advancing roof support
ZA898459B (en)	1990-08-29	Mine roof support
PL269909A1 (en)	1989-07-10	Self-advancing roof supports
ZA909381B (en)	1991-09-25	Mine roof support
ZA909073B (en)	1991-09-25	Mine roof support
ZA885626B (en)	1989-04-26	Mine support