AU463909B2 - Improvements in or relating to mine roof supports - Google Patents

Improvements in or relating to mine roof supports

Info

Publication number: AU463909B2
Authority: AU; Australia
Prior art keywords: relating; mine roof; roof supports; supports; mine
Prior art date: 1970-12-02
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

AU36291/71A

Other versions

AU3629171A (en

Inventor

Gray Stevenson James

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.)

1970-12-02

Filing date

1971-11-30

Publication date

1975-08-07

1971-11-30 Application filed by Gullick Dobson Ltd filed Critical Gullick Dobson Ltd

1973-06-07 Publication of AU3629171A publication Critical patent/AU3629171A/en

1975-08-07 Application granted granted Critical

1975-08-07 Publication of AU463909B2 publication Critical patent/AU463909B2/en

Status Expired legal-status Critical Current

Links

Classifications

- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/0213—Assembling devices for pivoting caps upwardly

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)
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Conveying And Assembling Of Building Elements In Situ (AREA)
Helmets And Other Head Coverings (AREA)

AU36291/71A 1970-12-02 1971-11-30 Improvements in or relating to mine roof supports Expired AU463909B2 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB5717870		1970-12-02
GBGB57178/70		1970-12-02

Publications (2)

Publication Number	Publication Date
AU3629171A AU3629171A (en)	1973-06-07
AU463909B2 true AU463909B2 (en)	1975-08-07

Family

ID=10478555

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU36291/71A Expired AU463909B2 (en)	1970-12-02	1971-11-30	Improvements in or relating to mine roof supports

Country Status (4)

Country	Link
US (1)	US3732699A (en)
AU (1)	AU463909B2 (en)
DE (1)	DE2158160C3 (en)
GB (1)	GB1329125A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1583647A (en) *	1976-09-24	1981-01-28	Huwood Ltd	Mine roof supports
US4266892A (en) *	1979-07-02	1981-05-12	Hermann Hemscheidt Maschinenfabrik Gmbh & Co.	Hydraulic roof-support frame
GB2082236B (en) *	1980-08-06	1984-03-07	Dowty Mining Equipment Ltd	Mine roof support with cantilever extension on roof plate
DE3540807C1 (en) *	1985-11-16	1987-06-04	Bochumer Eisen Heintzmann	Positioning cap construction
GB2196371B (en) *	1986-10-15	1990-05-09	Gullick Dobson Ltd	Mine roof supports
CN103046944B (en) *	2012-12-26	2015-04-22	三一重型装备有限公司	Hydraulic support

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB882933A (en) *	1957-04-20	1961-11-22	Hoesch Werke Ag	Improvements in or relating to mine roof supports
FR1313208A (en) *	1961-11-14	1962-12-28	Lorraine Houilleres	Supporting device walking
GB1037734A (en) *	1961-12-19	1966-08-03	Coal Industry Patents Ltd	Improvements in mine roof bars
US3216202A (en) *	1962-11-09	1965-11-09	Gullick Ltd	Roof supporting means for mines
BE652266A (en) *	1963-08-29	1964-12-16
DE1221177B (en) *	1965-05-08	1966-07-21	Gewerk Eisenhuette Westfalia	Cap pull for retractable hydraulic support frames with front peg caps
GB1234661A (en) *	1968-01-17	1971-06-09

1971
- 1971-11-19 GB GB5717870A patent/GB1329125A/en not_active Expired
- 1971-11-23 US US00201444A patent/US3732699A/en not_active Expired - Lifetime
- 1971-11-24 DE DE2158160A patent/DE2158160C3/en not_active Expired
- 1971-11-30 AU AU36291/71A patent/AU463909B2/en not_active Expired

Also Published As

Publication number	Publication date
GB1329125A (en)	1973-09-05
US3732699A (en)	1973-05-15
DE2158160A1 (en)	1972-06-15
AU3629171A (en)	1973-06-07
DE2158160C3 (en)	1973-11-15
DE2158160B2 (en)	1973-04-26

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