GB984790A - Improvements in or relating to mine roof supports - Google Patents

Improvements in or relating to mine roof supports

Info

Publication number
GB984790A
GB984790A GB2575960A GB2575960A GB984790A GB 984790 A GB984790 A GB 984790A GB 2575960 A GB2575960 A GB 2575960A GB 2575960 A GB2575960 A GB 2575960A GB 984790 A GB984790 A GB 984790A
Authority
GB
United Kingdom
Prior art keywords
mine roof
advancing
relating
july
roof
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
GB2575960A
Inventor
Gerald Herbert Cotterill
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.)
HERBERT COTTERILL Ltd
Original Assignee
HERBERT COTTERILL Ltd
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 HERBERT COTTERILL Ltd filed Critical HERBERT COTTERILL Ltd
Priority to GB2575960A priority Critical patent/GB984790A/en
Publication of GB984790A publication Critical patent/GB984790A/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
    • E21D23/0472—Supports specially adapted for people walking or transporting material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

984,790. Advancing mine roof supports. HERBERT COTTERILL Ltd. July 25, 1961 [July 25, 1960], No. 25759/60. Heading E1E. In an advancing mine roof support of the push-pull type consisting of prop units 1, 2 interconnected by an advancing ram 13, 14 and wherein the props are of the hydraulic or friction lock type, the cylinder or piston of the ram is connected to a rearwardly extending portion 9 of the unit 1 projecting therefrom to a greater extent than the width of a man's body. The roof plates of the units 1, 2 may be provided with guideways for the reception of roof supporting bars, see Fig. 3 (not shown).
GB2575960A 1960-07-25 1960-07-25 Improvements in or relating to mine roof supports Expired GB984790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2575960A GB984790A (en) 1960-07-25 1960-07-25 Improvements in or relating to mine roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2575960A GB984790A (en) 1960-07-25 1960-07-25 Improvements in or relating to mine roof supports

Publications (1)

Publication Number Publication Date
GB984790A true GB984790A (en) 1965-03-03

Family

ID=10232842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2575960A Expired GB984790A (en) 1960-07-25 1960-07-25 Improvements in or relating to mine roof supports

Country Status (1)

Country Link
GB (1) GB984790A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461095A1 (en) * 1979-07-06 1981-01-30 Charbonnages De France SLIDING CONTINUOUS SUPPORT PORTION WITH LARGE PASSENGER OPENING AND SLIDING HAT
US4411559A (en) * 1981-06-18 1983-10-25 Aunald Jopling Mining system
US4465406A (en) * 1980-09-19 1984-08-14 Gewerkschaft Eisenhutte Westfalia Mine roof support unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461095A1 (en) * 1979-07-06 1981-01-30 Charbonnages De France SLIDING CONTINUOUS SUPPORT PORTION WITH LARGE PASSENGER OPENING AND SLIDING HAT
US4465406A (en) * 1980-09-19 1984-08-14 Gewerkschaft Eisenhutte Westfalia Mine roof support unit
US4411559A (en) * 1981-06-18 1983-10-25 Aunald Jopling Mining system

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