GB977785A - A new or improved mine roof support - Google Patents

A new or improved mine roof support

Info

Publication number
GB977785A
GB977785A GB2516661A GB2516661A GB977785A GB 977785 A GB977785 A GB 977785A GB 2516661 A GB2516661 A GB 2516661A GB 2516661 A GB2516661 A GB 2516661A GB 977785 A GB977785 A GB 977785A
Authority
GB
United Kingdom
Prior art keywords
new
roof support
mine roof
improved mine
arch
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
GB2516661A
Inventor
Wilfred Edmund Baker
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.)
Fisher and Ludlow Ltd
Original Assignee
Fisher and Ludlow 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 Fisher and Ludlow Ltd filed Critical Fisher and Ludlow Ltd
Priority to GB2516661A priority Critical patent/GB977785A/en
Publication of GB977785A publication Critical patent/GB977785A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
    • E21D11/155—Laggings made of strips, slats, slabs or sheet piles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Tents Or Canopies (AREA)
  • Greenhouses (AREA)

Abstract

977,785. Tunnels &c. FISHER & LUDLOW Ltd. July 9, 1962 [July 12, 1961], No. 25166/61. Heading E1F. A lagging iron comprises a corrugated sheet provided at opposite ends with apertures adapted for engagement with the arches. In the embodiments shown in Figs. 1-3, and 4, the apertures 16 are adapted to receive the arch 17, the embodiment shown in Fig. 4 having a tongue 19 protruding into each aperture and adapted to coact with the flange 21 of an arch.
GB2516661A 1961-07-12 1961-07-12 A new or improved mine roof support Expired GB977785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2516661A GB977785A (en) 1961-07-12 1961-07-12 A new or improved mine roof support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2516661A GB977785A (en) 1961-07-12 1961-07-12 A new or improved mine roof support

Publications (1)

Publication Number Publication Date
GB977785A true GB977785A (en) 1964-12-16

Family

ID=10223294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2516661A Expired GB977785A (en) 1961-07-12 1961-07-12 A new or improved mine roof support

Country Status (1)

Country Link
GB (1) GB977785A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162563A (en) * 1984-08-04 1986-02-05 Serni Ltd Improvements relating to panels for the strutting, lagging and cladding of supports used in underground roadways

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162563A (en) * 1984-08-04 1986-02-05 Serni Ltd Improvements relating to panels for the strutting, lagging and cladding of supports used in underground roadways

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