GB990413A - Roof supports suitable for use in mines - Google Patents

Roof supports suitable for use in mines

Info

Publication number
GB990413A
GB990413A GB1704961A GB1704961A GB990413A GB 990413 A GB990413 A GB 990413A GB 1704961 A GB1704961 A GB 1704961A GB 1704961 A GB1704961 A GB 1704961A GB 990413 A GB990413 A GB 990413A
Authority
GB
United Kingdom
Prior art keywords
mines
projection
roof supports
supports suitable
prop
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
GB1704961A
Inventor
Dennis Henry Cannon
Aubrey Mason Griffiths
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.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment 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 Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Priority to GB1704961A priority Critical patent/GB990413A/en
Publication of GB990413A publication Critical patent/GB990413A/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
    • E21D23/0418—Positioning devices and stabilizing means for the props

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)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

990,413. Resilient mounting means for pit props. DOWTY MINING EQUIPMENT Ltd. June 12, 1962 [May 10, 1961], No. 17049/61. Heading E1E. In a mine roof support frame each prop 6 is carried by a socket 14 having opposed projections 18, 19 for loading it in a shed plate 22, one projection 18 serving as an abutment stop and the other projection 19 being engaged by rubber location blocks 21, 23 engaging the upper and lower surfaces thereof.
GB1704961A 1961-05-10 1961-05-10 Roof supports suitable for use in mines Expired GB990413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1704961A GB990413A (en) 1961-05-10 1961-05-10 Roof supports suitable for use in mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1704961A GB990413A (en) 1961-05-10 1961-05-10 Roof supports suitable for use in mines

Publications (1)

Publication Number Publication Date
GB990413A true GB990413A (en) 1965-04-28

Family

ID=10088339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1704961A Expired GB990413A (en) 1961-05-10 1961-05-10 Roof supports suitable for use in mines

Country Status (1)

Country Link
GB (1) GB990413A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530678A (en) * 1967-04-28 1970-09-29 Karl Marie Groetschel Position restoring devices for mine roof props

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530678A (en) * 1967-04-28 1970-09-29 Karl Marie Groetschel Position restoring devices for mine roof props

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