GB1312386A - Hydraulic roof-support frame - Google Patents

Hydraulic roof-support frame

Info

Publication number
GB1312386A
GB1312386A GB5536171A GB5536171A GB1312386A GB 1312386 A GB1312386 A GB 1312386A GB 5536171 A GB5536171 A GB 5536171A GB 5536171 A GB5536171 A GB 5536171A GB 1312386 A GB1312386 A GB 1312386A
Authority
GB
United Kingdom
Prior art keywords
support frame
roof
hydraulic roof
load
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
GB5536171A
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.)
Hemscheidt Hermann Maschinenfabrik GmbH and Co
Original Assignee
Hemscheidt Hermann Maschinenfabrik GmbH and Co
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
Priority claimed from DE19702063466 external-priority patent/DE2063466C3/en
Application filed by Hemscheidt Hermann Maschinenfabrik GmbH and Co filed Critical Hemscheidt Hermann Maschinenfabrik GmbH and Co
Publication of GB1312386A publication Critical patent/GB1312386A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Bridges Or Land Bridges (AREA)
  • Door And Window Frames Mounted To Openings (AREA)
  • Revetment (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Tents Or Canopies (AREA)

Abstract

1312386 Mine roof support frames HERMANN HEMSCHEIDT MASCHINENFABRIK 29 Nov 1971 [23 Dec 1970] 55361/71 Heading E1P A mine roof support frame consists of a central section 1, 6, 7 of greater load-bearing area and load-bearing capacity than adjacent end units 12, 14 which are articulated thereto as at 10, 11 at both roof and floor levels; the roof and floor beams being selectively locked to-gether by sliding shoes 20 to form a rigid structure when desired.
GB5536171A 1970-12-23 1971-11-29 Hydraulic roof-support frame Expired GB1312386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702063466 DE2063466C3 (en) 1970-12-23 Hydraulic door frame joint removal

Publications (1)

Publication Number Publication Date
GB1312386A true GB1312386A (en) 1973-04-04

Family

ID=5792006

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5536171A Expired GB1312386A (en) 1970-12-23 1971-11-29 Hydraulic roof-support frame

Country Status (6)

Country Link
US (1) US3745772A (en)
JP (1) JPS5136686B1 (en)
FR (1) FR2119373A5 (en)
GB (1) GB1312386A (en)
PL (1) PL77190B1 (en)
ZA (1) ZA718168B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123885A (en) * 1982-07-09 1984-02-08 Dowty Mining Equipment Ltd Roof support for use in mines
US4675442A (en) * 1981-06-19 1987-06-23 Rohm Gmbh Method of making methacrylamides

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5269809A (en) * 1990-07-02 1993-12-14 American Cyanamid Company Locking mechanism for use with a slotted suture anchor
US5538364A (en) * 1995-02-14 1996-07-23 Huntsman; Steven D. Yieldable mine post having a double ball and socket configuration
CN113815409A (en) * 2020-06-16 2021-12-21 中兴通讯股份有限公司 Driving assistance method and device, vehicle-mounted system and storage medium
CN118548076A (en) * 2024-07-29 2024-08-27 广东省建筑设计研究院集团股份有限公司 Conversion braced frame

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675442A (en) * 1981-06-19 1987-06-23 Rohm Gmbh Method of making methacrylamides
GB2123885A (en) * 1982-07-09 1984-02-08 Dowty Mining Equipment Ltd Roof support for use in mines
US4492495A (en) * 1982-07-09 1985-01-08 Dowty Mining Equipment Limited Roof support for use in mines

Also Published As

Publication number Publication date
DE2063466B2 (en) 1977-01-27
PL77190B1 (en) 1975-04-30
JPS5136686B1 (en) 1976-10-09
DE2063466A1 (en) 1972-07-06
US3745772A (en) 1973-07-17
ZA718168B (en) 1973-08-29
FR2119373A5 (en) 1972-08-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee
PCNP Patent ceased through non-payment of renewal fee