GB823586A - Improvements in or relating to mine roof supports - Google Patents

Improvements in or relating to mine roof supports

Info

Publication number
GB823586A
GB823586A GB1773957A GB1773957A GB823586A GB 823586 A GB823586 A GB 823586A GB 1773957 A GB1773957 A GB 1773957A GB 1773957 A GB1773957 A GB 1773957A GB 823586 A GB823586 A GB 823586A
Authority
GB
United Kingdom
Prior art keywords
head
roof supports
relating
mine roof
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
GB1773957A
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.)
HOESCH WESTFALENHUTTE AG
Original Assignee
HOESCH WESTFALENHUTTE AG
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 HOESCH WESTFALENHUTTE AG filed Critical HOESCH WESTFALENHUTTE AG
Publication of GB823586A publication Critical patent/GB823586A/en
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
    • E21D17/0206—Hydraulically operated extension devices

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)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

823,586. Telescopic mine-roof supports. HOESCH-WESTFALENHUTTE A. G. June 4, 1957 [June 5, 1956], No. 17739/57. Class 20(2) A telescopic mine roof support comprises a hollow coal head 1 enclosing a support head 2 extendable by an hydraulic cylinder and piston 4 the support head upon extension being first lowered then run parallel and finally lifted relative to the coal head by means of guide slots 8, 9 engaging slide bolts 6, 7 on the support head.
GB1773957A 1956-06-05 1957-06-04 Improvements in or relating to mine roof supports Expired GB823586A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW19185D DE1182188B (en) 1956-06-05 1956-06-05 Vorpfaendeinrichtung

Publications (1)

Publication Number Publication Date
GB823586A true GB823586A (en) 1959-11-11

Family

ID=7596423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1773957A Expired GB823586A (en) 1956-06-05 1957-06-04 Improvements in or relating to mine roof supports

Country Status (2)

Country Link
DE (1) DE1182188B (en)
GB (1) GB823586A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240021A (en) * 1961-07-22 1966-03-15 Mines Domanlales De Potasse D Mine roof supporting structure
US3364682A (en) * 1964-03-09 1968-01-23 Dowty Mining Equipment Ltd Roof support suitable for use in mines
JPS5175602A (en) * 1974-12-23 1976-06-30 Banyaszati Kutato Intezet
US4048803A (en) * 1973-12-07 1977-09-20 Banyaszati Kutato Intezet Mining shield support apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1286486B (en) * 1965-04-21 1969-01-09 Groetschel Karl Maria Wandering longwall mining
DE1221177B (en) * 1965-05-08 1966-07-21 Gewerk Eisenhuette Westfalia Cap pull for retractable hydraulic support frames with front peg caps
DE1783025B1 (en) * 1968-09-20 1970-10-15 Bergwerksverband Gmbh DEVICE FOR SENSING OBSTACLES IN THE WAY OF THE ADVANCING, STEPPING STRUCTURAL STRUCTURE
DE2845054C3 (en) * 1978-10-16 1981-09-24 Klöckner-Werke AG, 4100 Duisburg Hanging cap of a walking frame with a retractable and extendable pre-pledging cap

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2263352A (en) * 1939-05-16 1941-11-18 Jack L Dow Tunnel construction
DE738332C (en) * 1940-08-29 1943-08-11 Bergtechnik G M B H Procedure and device for Vorpfaenden
DE850131C (en) * 1948-10-02 1952-09-22 Gutehoffnungshuette Oberhausen Shell iron for the pit lining

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240021A (en) * 1961-07-22 1966-03-15 Mines Domanlales De Potasse D Mine roof supporting structure
US3364682A (en) * 1964-03-09 1968-01-23 Dowty Mining Equipment Ltd Roof support suitable for use in mines
US4048803A (en) * 1973-12-07 1977-09-20 Banyaszati Kutato Intezet Mining shield support apparatus
JPS5175602A (en) * 1974-12-23 1976-06-30 Banyaszati Kutato Intezet
JPS5838599B2 (en) * 1974-12-23 1983-08-24 バニアスザテイ クタト インテゼツト Shield support device

Also Published As

Publication number Publication date
DE1182188B (en) 1964-11-26

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