GB1485902A - Shield-type roof support unit - Google Patents

Shield-type roof support unit

Info

Publication number
GB1485902A
GB1485902A GB5631/75A GB563175A GB1485902A GB 1485902 A GB1485902 A GB 1485902A GB 5631/75 A GB5631/75 A GB 5631/75A GB 563175 A GB563175 A GB 563175A GB 1485902 A GB1485902 A GB 1485902A
Authority
GB
United Kingdom
Prior art keywords
shield
roof support
support unit
feb
plate
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
GB5631/75A
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Publication of GB1485902A publication Critical patent/GB1485902A/en
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
    • E21D23/006—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
    • E21D23/0078—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 individual shifting 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
    • E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support

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)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

1485902 Mine roof supports BOCHUMER EISENHUTTE HEINTZMANN & CO 10 Feb 1975 [15 Feb 1974] 5631/75 Heading E1P In a mine roof support comprising a caving shield 4 pivotally attached to a sleeper 1 and to a roof plate the rear portion 17 of the roof plate has co-operating tooth or finger like interconnection with the shield, see Fig. 2 (not shown) and means such as box-like extensions 19 for preventing infiltration of gob into the working irrespective of the relative angles of inclination of the plate and the shield. The support is also provided with sealing strips such as 26 and spring loaded sealing caps for details of which Figs. 4 and 3 (not shown) should be referred to respectively.
GB5631/75A 1974-02-15 1975-02-10 Shield-type roof support unit Expired GB1485902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742407227 DE2407227B1 (en) 1974-02-15 1974-02-15 Hang end cap arrangement for shield support frames

Publications (1)

Publication Number Publication Date
GB1485902A true GB1485902A (en) 1977-09-14

Family

ID=5907477

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5631/75A Expired GB1485902A (en) 1974-02-15 1975-02-10 Shield-type roof support unit

Country Status (5)

Country Link
US (1) US3921409A (en)
DE (1) DE2407227B1 (en)
ES (1) ES434740A1 (en)
GB (1) GB1485902A (en)
PL (1) PL92966B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2451764C2 (en) * 1974-10-31 1976-09-23 Rheinstahl Ag, 4300 Essen SEAL BETWEEN CAP AND BREAKAGE SHIELD OF A SHIELD STRUCTURE
DE2517732C2 (en) * 1975-04-22 1977-01-20 Kloeckner Werke Ag Gap sealing between the protruding part of the hanging shield and the breakage of a shield support frame
GB1494284A (en) * 1975-07-19 1977-12-07 Gullick Dobson Ltd Self-advancing mine roof supports
ZA762055B (en) * 1976-04-08 1977-05-25 Dowty Mining Equipment Ltd Mine roorf support
DE2622888B2 (en) * 1976-05-21 1978-03-16 Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum Shield support frame
GB2239286B (en) * 1989-12-23 1994-03-02 Meco Mining Equip Mine roof support
US10774642B1 (en) * 2019-05-05 2020-09-15 Liaoning University Hydraulic support unit and hydraulic support for anti-rock burst roadway

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA839498A (en) * 1970-04-21 Evgenievich Yazvitsky Pavel Mine roof support assembly
CA832741A (en) * 1970-01-27 Vasilievich Martynov Boris Mechanized hydraulic timbering
NL279454A (en) * 1961-06-09
DE1224248B (en) * 1964-11-17 1966-09-08 Hermann Schwarz Kommanditgesel Extension frame and thus feasible mining process for coal fines
HU162717B (en) * 1971-03-05 1973-04-28

Also Published As

Publication number Publication date
US3921409A (en) 1975-11-25
DE2407227B1 (en) 1975-06-05
ES434740A1 (en) 1976-12-16
PL92966B1 (en) 1977-04-30

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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