GB985401A - Improvements in advanceable mine roof support assemblies - Google Patents

Improvements in advanceable mine roof support assemblies

Info

Publication number
GB985401A
GB985401A GB17443/62A GB1744362A GB985401A GB 985401 A GB985401 A GB 985401A GB 17443/62 A GB17443/62 A GB 17443/62A GB 1744362 A GB1744362 A GB 1744362A GB 985401 A GB985401 A GB 985401A
Authority
GB
United Kingdom
Prior art keywords
mine roof
props
roof
roof support
interconnected
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
GB17443/62A
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.)
Rheinstahl Wanheim GmbH
Original Assignee
Rheinstahl Wanheim GmbH
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 Rheinstahl Wanheim GmbH filed Critical Rheinstahl Wanheim GmbH
Publication of GB985401A publication Critical patent/GB985401A/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
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0017—Pile type supports
    • E21D23/003—Pile type supports consisting of a rigid pile
    • 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
    • E21D23/0069—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 without essential advancing shifting 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)
  • Tents Or Canopies (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

985,401. Advancing mine roof supports. RHEINSTAHL WANHEIM G.m.b.H. May 7, 1962 [May 13, 1961], No. 17443/62. Heading E1E. In a mine roof support assembly comprising at least two hydraulic props 1 interconnected at a fixed spacing by roof and floor connections, the front and rear prop or props are adapted to be retracted in turn and suspended from the roof bar 3 to permit troughs in the floor to be levelled off prior to advancement of all of the said props by a shifting cylinder 2. The roofbar is made up of sections which are interconnected by a slotted joint connection 4, 5, 6 permitting limited angular and vertical adjustment. Each prop, see Fig. 2 (not shown), is provided with a retracting cylinder maintained under constant load.
GB17443/62A 1961-05-13 1962-05-07 Improvements in advanceable mine roof support assemblies Expired GB985401A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER0030332 1961-05-13

Publications (1)

Publication Number Publication Date
GB985401A true GB985401A (en) 1965-03-10

Family

ID=7403268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17443/62A Expired GB985401A (en) 1961-05-13 1962-05-07 Improvements in advanceable mine roof support assemblies

Country Status (2)

Country Link
US (1) US3218812A (en)
GB (1) GB985401A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182704A (en) * 1985-11-08 1987-05-20 Dobson Park Ind Pivotable forward extension on mine roof support canopy

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE649949A (en) * 1963-07-02
DE1289506C2 (en) * 1963-08-29 1974-03-28 HYDRAULIC SUPPORT ELEMENT
US3333809A (en) * 1965-07-27 1967-08-01 Wild A G & Co Ltd Hydraulic chocks
GB1206283A (en) * 1967-07-28 1970-09-23 Herbert Cotterill Ltd Improvements in or relating to mine roof supports
JPS4812602B1 (en) * 1967-09-22 1973-04-21
LU56825A1 (en) * 1968-09-05 1970-03-05
DE8318615U1 (en) * 1983-06-28 1983-11-03 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel ALIGNMENT CYLINDER FOR SHIELD REMOVAL
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795935A (en) * 1952-09-30 1957-06-18 Joy Mfg Co Walking roof support
US3115754A (en) * 1959-01-23 1963-12-31 Dowty Mining Equipment Ltd Mining shield

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182704A (en) * 1985-11-08 1987-05-20 Dobson Park Ind Pivotable forward extension on mine roof support canopy

Also Published As

Publication number Publication date
US3218812A (en) 1965-11-23

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