AU466853B2 - Improvements in or relating to mine roof support - Google Patents

Improvements in or relating to mine roof support

Info

Publication number: AU466853B2
Authority: AU; Australia
Prior art keywords: relating; roof support; mine roof; mine; support
Prior art date: 1972-03-24
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

AU53457/73A

Other versions

AU5345773A (en

Inventor

Dawson Allen Archelaus

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.)

Gullick Dobson Ltd

Original Assignee

Gullick Dobson 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.)

1972-03-24

Filing date

1973-03-19

Publication date

1975-11-13

1973-03-19 Application filed by Gullick Dobson Ltd filed Critical Gullick Dobson Ltd

1974-09-19 Publication of AU5345773A publication Critical patent/AU5345773A/en

1975-11-13 Application granted granted Critical

1975-11-13 Publication of AU466853B2 publication Critical patent/AU466853B2/en

Status Expired legal-status Critical Current

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
- E21D23/0004—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
- E21D23/0017—Pile type supports
- E21D23/003—Pile type supports consisting of a rigid pile
- 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
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support

Landscapes

Engineering & Computer Science (AREA)
Mining & Mineral Resources (AREA)
Life Sciences & Earth Sciences (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Geology (AREA)
Excavating Of Shafts Or Tunnels (AREA)

AU53457/73A 1972-03-24 1973-03-19 Improvements in or relating to mine roof support Expired AU466853B2 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GBGB13972		1972-03-24
GB1397272A GB1387311A (en)	1972-03-24	1972-03-24	Mine roof supports

Publications (2)

Publication Number	Publication Date
AU5345773A AU5345773A (en)	1974-09-19
AU466853B2 true AU466853B2 (en)	1975-11-13

Family

ID=10032710

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU53457/73A Expired AU466853B2 (en)	1972-03-24	1973-03-19	Improvements in or relating to mine roof support

Country Status (4)

Country	Link
US (1)	US3848420A (en)
AU (1)	AU466853B2 (en)
GB (1)	GB1387311A (en)
PL (1)	PL84776B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1494284A (en) *	1975-07-19	1977-12-07	Gullick Dobson Ltd	Self-advancing mine roof supports
DE2646563C3 (en) *	1976-10-15	1979-08-09	Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum	Expansion for the hem area of a longwall
JPS5416303A (en) *	1977-07-07	1979-02-06	Taiheiyo Eng	Apparatus for controlling floated dust powder and like in long wall type coal mining face
DE3643120A1 (en) *	1986-01-22	1987-07-30	Voest Alpine Ag	MOVABLE RACK
US5019651A (en) *	1990-06-20	1991-05-28	Merck & Co., Inc.	Process for preparing 4-amino-1-hydroxybutylidene-1,1-bisphosphonic acid (ABP) or salts thereof
US5769504A (en) *	1996-03-11	1998-06-23	Council Of Scientific & Industrial Research	Equipment for shortwall mining useful for extraction of pillars in underground coal mines
WO2011006041A1 (en) *	2009-07-10	2011-01-13	Joy Mm Delaware, Inc.	Longwall mining roof supports
CN102536288A (en) *	2012-01-10	2012-07-04	中煤北京煤矿机械有限责任公司	Environment-friendly highwater filled support

Family Cites Families (6)

* 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
GB1216322A (en) *	1967-04-21	1970-12-16	Dobson Ltd W E & F	Improvements in or relating to mine roof supports
GB1206283A (en) *	1967-07-28	1970-09-23	Herbert Cotterill Ltd	Improvements in or relating to mine roof supports
US3570255A (en) *	1968-06-10	1971-03-16	Mastabar Mining Equipment Co L	Mine roof support
DE6902441U (en) *	1969-01-23	1969-05-22	Kloeckner Werke Ag	THREE-FRAME TENSIONING FOR STEPPING STRUCTURAL STRUCTURE WITH AN OFFSET CLADDING AT ITS OFFSET SIDE STAMPS
DE2027299A1 (en) *	1970-06-03	1971-12-09	Klöckner-Werke ,4100 Duisburg	Cap pull for the support frame of the traveling longwall mining

1972
- 1972-03-24 GB GB1397272A patent/GB1387311A/en not_active Expired
1973
- 1973-03-16 US US00342304A patent/US3848420A/en not_active Expired - Lifetime
- 1973-03-19 AU AU53457/73A patent/AU466853B2/en not_active Expired
- 1973-03-22 PL PL1973161413A patent/PL84776B1/pl unknown

Also Published As

Publication number	Publication date
AU5345773A (en)	1974-09-19
US3848420A (en)	1974-11-19
GB1387311A (en)	1975-03-12
PL84776B1 (en)	1976-04-30

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