GB1254594A - Improvements in or relating to mine roof supports - Google Patents

Improvements in or relating to mine roof supports

Info

Publication number
GB1254594A
GB1254594A GB799869A GB799869A GB1254594A GB 1254594 A GB1254594 A GB 1254594A GB 799869 A GB799869 A GB 799869A GB 799869 A GB799869 A GB 799869A GB 1254594 A GB1254594 A GB 1254594A
Authority
GB
United Kingdom
Prior art keywords
mine roof
roof supports
relating
rams
double
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
GB799869A
Inventor
Jeffrey William Seddon
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.)
Gullick Dobson Ltd
Original Assignee
Gullick Dobson 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 Gullick Dobson Ltd filed Critical Gullick Dobson Ltd
Priority to GB799869A priority Critical patent/GB1254594A/en
Priority to CA073296A priority patent/CA919439A/en
Priority to DE19702004180 priority patent/DE2004180C3/en
Priority to FR7004437A priority patent/FR2035210A5/fr
Priority to JP45011529A priority patent/JPS4934882B1/ja
Publication of GB1254594A publication Critical patent/GB1254594A/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
    • E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports

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)
  • Lining And Supports For Tunnels (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Revetment (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Ladders (AREA)
  • Movable Scaffolding (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

1,254,594. Advancing mine roof supports. GULLICK DOBSON Ltd. 28 Jan., 1970 [13 Feb., 1969], No. 7998/69. Heading E1P. In an advancing mine roof support assembly for inclined seams, two adjacent roof supports are inter-connected by three extensible members, such as single or double acting rams 22, 22a, positioned relative to one another at the apices of a triangle. In a modification, see Figs. 4, 5 and 6 (not shown), one of the rams is replaced by a cam-like skid plate pivotally connected to one support and adjustably positioned thereon by a single- or double-acting ram.
GB799869A 1969-02-13 1969-02-13 Improvements in or relating to mine roof supports Expired GB1254594A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB799869A GB1254594A (en) 1969-02-13 1969-02-13 Improvements in or relating to mine roof supports
CA073296A CA919439A (en) 1969-02-13 1970-01-28 Mine roof supports
DE19702004180 DE2004180C3 (en) 1969-02-13 1970-01-30 Wandering longwall mining
FR7004437A FR2035210A5 (en) 1969-02-13 1970-02-09
JP45011529A JPS4934882B1 (en) 1969-02-13 1970-02-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB799869A GB1254594A (en) 1969-02-13 1969-02-13 Improvements in or relating to mine roof supports

Publications (1)

Publication Number Publication Date
GB1254594A true GB1254594A (en) 1971-11-24

Family

ID=9843830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB799869A Expired GB1254594A (en) 1969-02-13 1969-02-13 Improvements in or relating to mine roof supports

Country Status (5)

Country Link
JP (1) JPS4934882B1 (en)
CA (1) CA919439A (en)
DE (1) DE2004180C3 (en)
FR (1) FR2035210A5 (en)
GB (1) GB1254594A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518394U (en) * 1978-07-26 1980-02-05

Also Published As

Publication number Publication date
JPS4934882B1 (en) 1974-09-18
DE2004180B2 (en) 1974-05-16
DE2004180C3 (en) 1975-10-23
CA919439A (en) 1973-01-23
FR2035210A5 (en) 1970-12-18
DE2004180A1 (en) 1970-09-03

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