FR994590A - Sky support for mines - Google Patents

Sky support for mines

Info

Publication number
FR994590A
FR994590A FR994590DA FR994590A FR 994590 A FR994590 A FR 994590A FR 994590D A FR994590D A FR 994590DA FR 994590 A FR994590 A FR 994590A
Authority
FR
France
Prior art keywords
mines
sky support
sky
support
Prior art date
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
Other languages
French (fr)
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 Equipment Ltd
Original Assignee
Dowty 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.)
Filing date
Publication date
Application filed by Dowty Equipment Ltd filed Critical Dowty Equipment Ltd
Application granted granted Critical
Publication of FR994590A publication Critical patent/FR994590A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with advancing shifting devices connected therewith
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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 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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0065—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices driven, or automatically, e.g. electrically-hydraulically controlled
FR994590D 1948-09-01 1949-09-01 Sky support for mines Expired FR994590A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23081/48A GB658998A (en) 1948-09-01 1948-09-01 Improvements in mine roof supports

Publications (1)

Publication Number Publication Date
FR994590A true FR994590A (en) 1951-11-19

Family

ID=10189812

Family Applications (1)

Application Number Title Priority Date Filing Date
FR994590D Expired FR994590A (en) 1948-09-01 1949-09-01 Sky support for mines

Country Status (5)

Country Link
US (1) US2641906A (en)
BE (1) BE490921A (en)
DE (1) DE974199C (en)
FR (1) FR994590A (en)
GB (1) GB658998A (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB658998A (en) * 1948-09-01 1951-10-17 Dowty Equipment Ltd Improvements in mine roof supports
DE977365C (en) * 1950-06-18 1966-03-24 Konrad Grebe Wandering longwall mining
US2757515A (en) * 1952-08-04 1956-08-07 Noble Co Tunnel breasting jumbo
US2795934A (en) * 1952-09-30 1957-06-18 Joy Mfg Co Rotating hydraulic roof supporting jacks
US2795935A (en) * 1952-09-30 1957-06-18 Joy Mfg Co Walking roof support
US2795936A (en) * 1952-09-30 1957-06-18 Joy Mfg Co Walking roof support
US2756034A (en) * 1952-10-29 1956-07-24 Joy Mfg Co Roof supporting jacks on a continuous miner
BE526791A (en) * 1953-02-25
US2694293A (en) * 1953-05-08 1954-11-16 Hydrauliques Pour L Ind Minier Propping device for roofs of mine levels
DE1078514B (en) * 1954-10-01 1960-03-31 Kloeckner Bergbau Victor Icker Wandering longwall mining, preferably for mining in steep floezen
DE1112030B (en) * 1955-09-17 1961-08-03 Rheinstahl Gmbh Wanheim Vorpfaendvorrichtung for a stamp extension
DE1182614B (en) * 1956-05-17 1964-12-03 Gewerk Eisenhuette Westfalia Back device for a planer guide in steeply mounted Floezen
DE1169399B (en) * 1956-06-18 1964-05-06 Gewerk Eisenhuette Westfalia Removable expansion for mining operations
DE1168372B (en) * 1957-06-28 1964-04-23 Gutehoffnungshuette Sterkrade Mechanized longwall mining
DE1088904B (en) * 1957-08-10 1960-09-15 Gewerk Eisenhuette Westfalia Hydraulic expansion for mining operations
US3143862A (en) * 1958-08-11 1964-08-11 Dobson Ltd W E & F Support of roofs in mines
DE1151235B (en) * 1958-09-10 1963-07-11 Glueckauf Guenther Klerner Mas Distributor for hydraulically actuated, double-acting pre-pressure cylinders for laying face conveyors or the like.
DE1217907B (en) * 1958-12-20 1966-06-02 Bosch Gmbh Robert Use of a switching device with several fittings
US3115754A (en) * 1959-01-23 1963-12-31 Dowty Mining Equipment Ltd Mining shield
DE1130780B (en) * 1960-02-08 1962-06-07 Gewerk Eisenhuette Westfalia Moving hydraulic support frame for underground mining operations
DE1155077B (en) * 1960-12-24 1963-10-03 Rheinstahl Gmbh Wanheim Sole for migrating expansion elements
US20060201322A1 (en) * 2005-03-10 2006-09-14 Kroeger E B Support column installation assembly

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1473157A (en) * 1923-11-06 morgan
BE457387A (en) *
BE456556A (en) *
US1450329A (en) * 1916-01-05 1923-04-03 Edmund C Morgan Mine-roof-supporting method and apparatus
US1473498A (en) * 1917-10-06 1923-11-06 Morgan Olive Eugenie Tunneling machine
US1710887A (en) * 1921-11-15 1929-04-30 Morgan Olive Eugenie Mining machine
DE510708C (en) * 1929-02-05 1930-10-22 Albert Hamel Extraction chamber with height-adjustable roof
US1870088A (en) * 1931-06-12 1932-08-02 Louis I Beckwith Refrigerating apparatus
DE667538C (en) * 1935-05-23 1938-11-14 Ernst Hoffmann Tunneling machine
GB453560A (en) * 1935-05-27 1936-09-14 Wilhelm Fehlemann Yieldable prop for mines
US2202584A (en) * 1935-06-18 1940-05-28 Sullivan Machinery Co Mining apparatus
US2163959A (en) * 1937-03-18 1939-06-27 John A Edeby Lifting jack
US2152654A (en) * 1937-11-22 1939-04-04 Jr Glenway Maxon Traction mechanism
DE714182C (en) * 1940-02-24 1941-12-02 Konrad Frielinghaus Hiking pillar
DE733743C (en) * 1940-02-24 1943-04-01 Bergtechnik G M B H Device for lateral movement of conveyors
US2420755A (en) * 1942-12-04 1947-05-20 Joy Mfg Co Apparatus for mining
DE919165C (en) * 1943-03-23 1954-10-14 Gerhard Werner Back machine for expansion elements for longwall construction
BE456862A (en) * 1943-06-28 1944-08-31
FR905292A (en) * 1943-07-31 1945-11-29 Pit prop
GB576700A (en) * 1944-04-13 1946-04-16 Ransomes & Rapier Ltd Improvements in or relating to excavating machines
GB658998A (en) * 1948-09-01 1951-10-17 Dowty Equipment Ltd Improvements in mine roof supports

Also Published As

Publication number Publication date
US2641906A (en) 1953-06-16
DE974199C (en) 1960-10-13
BE490921A (en) 1949-09-15
GB658998A (en) 1951-10-17

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