GB1555228A - Mine roof support - Google Patents

Mine roof support

Info

Publication number: GB1555228A
Authority: GB; United Kingdom
Prior art keywords: roof support; mine roof; mine; support; roof
Prior art date: 1975-06-06
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

GB2338476A

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.)

Bennes Marrel SA

Original Assignee

Bennes Marrel SA

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.)

1975-06-06

Filing date

1976-06-07

Publication date

1979-11-07

1976-06-07 Application filed by Bennes Marrel SA filed Critical Bennes Marrel SA

1979-11-07 Publication of GB1555228A publication Critical patent/GB1555228A/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
- 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- 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
- E21D23/0034—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
- E21D23/0039—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 a strut or by a row of struts parallel to the working face

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)
Fluid-Pressure Circuits (AREA)

GB2338476A 1975-06-06 1976-06-07 Mine roof support Expired GB1555228A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR7518330A FR2313549A1 (en)	1975-06-06	1975-06-06	ARROW BATTERY WITH HAT, INTENDED TO ENSURE SUPPORT IN MINES

Publications (1)

Publication Number	Publication Date
GB1555228A true GB1555228A (en)	1979-11-07

Family

ID=9156399

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB2338476A Expired GB1555228A (en)	1975-06-06	1976-06-07	Mine roof support

Country Status (3)

Country	Link
DE (1)	DE2625622A1 (en)
FR (1)	FR2313549A1 (en)
GB (1)	GB1555228A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3100093A1 (en) *	1981-01-03	1982-08-05	Gewerkschaft Eisenhütte Westfalia, 4670 Lünen	DEVICE FOR LIMITING THE REMOVAL RESISTANCE OF A HYDRAULIC REMOVAL PLATE
DE3042749C2 (en) *	1980-11-13	1983-06-01	Bergwerksverband Gmbh, 4300 Essen	Procedure for controlling shield support

1975
- 1975-06-06 FR FR7518330A patent/FR2313549A1/en active Granted
1976
- 1976-06-07 GB GB2338476A patent/GB1555228A/en not_active Expired
- 1976-06-08 DE DE19762625622 patent/DE2625622A1/en not_active Withdrawn

Also Published As

Publication number	Publication date
DE2625622A1 (en)	1976-12-23
FR2313549B1 (en)	1982-10-29
FR2313549A1 (en)	1976-12-31

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Legal Events

Date	Code	Title	Description
1980-01-23	PS	Patent sealed
1987-02-04	PCNP	Patent ceased through non-payment of renewal fee