GB1391510A - Mine roof support with means for lifting the base elements - Google Patents

Mine roof support with means for lifting the base elements

Info

Publication number
GB1391510A
GB1391510A GB2798072A GB2798072A GB1391510A GB 1391510 A GB1391510 A GB 1391510A GB 2798072 A GB2798072 A GB 2798072A GB 2798072 A GB2798072 A GB 2798072A GB 1391510 A GB1391510 A GB 1391510A
Authority
GB
United Kingdom
Prior art keywords
frame
superstructure
base
advancement
during
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
GB2798072A
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.)
Groetschel K M
Original Assignee
Groetschel K M
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 DE19712129749 external-priority patent/DE2129749C/en
Application filed by Groetschel K M filed Critical Groetschel K M
Publication of GB1391510A publication Critical patent/GB1391510A/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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0436—Means for inclining the base member of the support

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Geology (AREA)
  • Prostheses (AREA)
  • Bridges Or Land Bridges (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

1391510 Advancing mine roof supports K M GROETSCHEL 15 June 1972 [16 June 1971] 27980/72 Heading E1P In an advancing mine roof support comprising an inner frame B and an outer frame A adapted to be selectively advanced by a hydraulic jack 18, at least the foreward prop or props of at least the leading frame is or are double-acting and connected to the base of said frame so as to lift it during advancement for which purpose the said prop or props is or are also connected to the hydraulic circuit of the advancing jack so as to be pressurised to lift the leading base during its advancement, see Fig. 7 (not shown) for circuit details the superstructure of the leading frame projecting forwardly of its base and being supported during its advancement by engaging a support 16 provided on the superstructure 14 of the trailing frame. The support 16 consists of a pair of supporting arms 15 each provided with a roller 17, the arm being mounted, if desired, for vertical adjustment in the superstructure 14, see Fig. 6 (not shown). During advance of the inner frame its superstructure rests on the crossbar 8 of the outer frame. For numerous minor details concerned with connecting the prop to its base, modus operandi, engagement between the inner and outer frames during advancement to allow relative flexure therebetween &c, the Specification and remaining drawings (not shown), should be referred to.
GB2798072A 1971-06-16 1972-06-15 Mine roof support with means for lifting the base elements Expired GB1391510A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712129749 DE2129749C (en) 1971-06-16 Mobile extension with a device for lifting substructures

Publications (1)

Publication Number Publication Date
GB1391510A true GB1391510A (en) 1975-04-23

Family

ID=5810871

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2798072A Expired GB1391510A (en) 1971-06-16 1972-06-15 Mine roof support with means for lifting the base elements

Country Status (7)

Country Link
US (1) US3748861A (en)
ES (1) ES402534A1 (en)
FR (1) FR2141871B1 (en)
GB (1) GB1391510A (en)
PL (1) PL82001B1 (en)
RO (1) RO60927A (en)
ZA (1) ZA724069B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111594248A (en) * 2020-05-28 2020-08-28 张世敏 Special temporary support equipment for tunnel bridge

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1114626A (en) * 1979-02-03 1981-12-22 John C. Smith Mine roof support
GB8328281D0 (en) * 1983-10-22 1983-11-23 Dobson Park Ind Mine roof supports
DE3400771A1 (en) * 1984-01-12 1985-07-18 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen EXTENSION FRAME, IN PARTICULAR SHIELD EXTENSION FRAME, WITH A LIFTING DEVICE FOR LIFTING THE RECESSED RUNNERS
US5584611A (en) * 1994-11-22 1996-12-17 Long-Airdox Roof support for underground excavations
CN102536290A (en) * 2012-03-23 2012-07-04 郑州四维机电设备制造有限公司 Face guard lockout mechanism
US10774642B1 (en) * 2019-05-05 2020-09-15 Liaoning University Hydraulic support unit and hydraulic support for anti-rock burst roadway
CN113622969B (en) * 2021-08-21 2023-09-22 华东矿用设备有限公司 Mining hydraulic supporting device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075518B (en) * 1960-02-18 Hermann Schwarz Kommanditgesellschaft, Wattenscheid Migrating metallic lining for mining operations in mines
US3143862A (en) * 1958-08-11 1964-08-11 Dobson Ltd W E & F Support of roofs in mines
US3115754A (en) * 1959-01-23 1963-12-31 Dowty Mining Equipment Ltd Mining shield
GB966034A (en) * 1961-10-02 1964-08-06 Dowty Mining Equipment Ltd Advanceable roof support suitable for use in mines
FR1368750A (en) * 1963-01-22 1964-08-07 Houilleres Bassin Du Nord Improvement in support piles
FR92217E (en) * 1965-06-29 1968-10-11 Support for mines and process for its advancement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111594248A (en) * 2020-05-28 2020-08-28 张世敏 Special temporary support equipment for tunnel bridge
CN111594248B (en) * 2020-05-28 2021-05-28 张世敏 Special temporary support equipment for tunnel bridge

Also Published As

Publication number Publication date
ES402534A1 (en) 1976-04-16
US3748861A (en) 1973-07-31
RO60927A (en) 1976-10-15
ZA724069B (en) 1973-03-28
FR2141871B1 (en) 1978-03-03
DE2129749B1 (en) 1972-05-25
FR2141871A1 (en) 1973-01-26
PL82001B1 (en) 1975-10-31

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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