FR1421076A - Control device for mine roof support - Google Patents

Control device for mine roof support

Info

Publication number: FR1421076A
Authority: FR; France
Prior art keywords: control device; roof support; mine roof; mine; support
Prior art date: 1964-01-18
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

FR2374A

Other languages

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.)

Dobson Ltd W E & F

WE&F Dobson Ltd

Original Assignee

Dobson Ltd W E & F

WE&F 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.)

1964-01-18

Filing date

1965-01-18

Publication date

1965-12-10

1965-01-18 Application filed by Dobson Ltd W E & F, WE&F Dobson Ltd filed Critical Dobson Ltd W E & F

1965-12-10 Application granted granted Critical

1965-12-10 Publication of FR1421076A publication Critical patent/FR1421076A/en

Status Expired legal-status Critical Current

Classifications

- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/60—Devices for withdrawing props or chocks
- E21D15/606—Devices for withdrawing props or chocks the props being moved systematically
- 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
- 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
- E21D23/26—Hydraulic or pneumatic control

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)
Mechanical Engineering (AREA)
Structural Engineering (AREA)
Actuator (AREA)
Press Drives And Press Lines (AREA)
Fluid-Driven Valves (AREA)
Fluid-Pressure Circuits (AREA)

FR2374A 1964-01-18 1965-01-18 Control device for mine roof support Expired FR1421076A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB2314/64A GB1086002A (en)	1964-01-18	1964-01-18	An improved hydraulic prop

Publications (1)

Publication Number	Publication Date
FR1421076A true FR1421076A (en)	1965-12-10

Family

ID=9737370

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR2374A Expired FR1421076A (en)	1964-01-18	1965-01-18	Control device for mine roof support

Country Status (5)

Country	Link
US (1)	US3295814A (en)
BE (1)	BE658328A (en)
DE (1)	DE1226513B (en)
FR (1)	FR1421076A (en)
GB (1)	GB1086002A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN110259491A (en) *	2019-07-04	2019-09-20	山东中煤电器有限公司	The electronic direct-push reversal valve of hydraulic support

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4621565A (en) *	1984-08-15	1986-11-11	Automotive Products Plc	Hydraulic slave cylinder switch
CN103291335A (en) *	2013-05-31	2013-09-11	巨隆集团芜湖兴隆液压有限公司	Balanced floating bidirectional lock

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1069549B (en) *		1959-11-26

1964
- 1964-01-18 GB GB2314/64A patent/GB1086002A/en not_active Expired
1965
- 1965-01-13 US US425123A patent/US3295814A/en not_active Expired - Lifetime
- 1965-01-14 DE DED46241A patent/DE1226513B/en active Pending
- 1965-01-15 BE BE658328D patent/BE658328A/xx unknown
- 1965-01-18 FR FR2374A patent/FR1421076A/en not_active Expired

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN110259491A (en) *	2019-07-04	2019-09-20	山东中煤电器有限公司	The electronic direct-push reversal valve of hydraulic support
CN110259491B (en) *	2019-07-04	2024-06-11	山东中煤电器有限公司	Electric direct-pushing reversing valve for hydraulic support

Also Published As

Publication number	Publication date
BE658328A (en)	1965-04-30
GB1086002A (en)	1967-10-04
DE1226513B (en)	1966-10-13
US3295814A (en)	1967-01-03

Publication	Publication Date	Title
FR1456127A (en)	1966-05-20	Position control device
FR1461259A (en)	1966-12-10	Automatic valve control device
FR1464237A (en)	1966-12-30	Vehicle control device
FR1394128A (en)	1965-04-02	Electro-hydraulic device for controlling hydraulic receivers
FR1445802A (en)	1966-07-15	Automatic positioning device for punches
FR1435469A (en)	1966-04-15	Control device for die-cutter
FR1435580A (en)	1966-04-15	Gain control device for spectrophotometers
FR1395354A (en)	1965-04-09	Control device
FR1390284A (en)	1965-02-26	Device for movement control
FR1421076A (en)	1965-12-10	Control device for mine roof support
FR1426031A (en)	1966-01-24	Roof support device for mines
FR1510885A (en)	1968-01-26	Hydraulic control device
FR1421042A (en)	1965-12-10	Control device for mine roof support support
FR1394500A (en)	1965-04-02	Mounting device for control panels
FR1356380A (en)	1964-03-27	Automatic frequency control device
FR1428639A (en)	1966-02-18	Control device
FR1461236A (en)	1966-12-09	Refrigerator control device
FR1355414A (en)	1964-03-13	Control device for mine roof supports
FR1459372A (en)	1966-04-29	Control system for mine roof supports
FR1448877A (en)	1966-08-12	Hydraulic servo control device
FR1461987A (en)	1966-12-09	Pneumatic control device
FR1473791A (en)	1967-03-17	Hydraulic control device
FR1396711A (en)	1965-04-23	Hydraulic control device
FR1372007A (en)	1964-09-11	Advanced control device for blinds
FR1417167A (en)	1965-11-12	Transmission control device for vehicle