GB652701A - Support of workings in underground development - Google Patents

Support of workings in underground development

Info

Publication number
GB652701A
GB652701A GB7782/48A GB778248A GB652701A GB 652701 A GB652701 A GB 652701A GB 7782/48 A GB7782/48 A GB 7782/48A GB 778248 A GB778248 A GB 778248A GB 652701 A GB652701 A GB 652701A
Authority
GB
United Kingdom
Prior art keywords
links
link
wedge
web
chain
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
GB7782/48A
Other languages
English (en)
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.)
RECH S IND ET SCIENT ET
Original Assignee
RECH S IND ET SCIENT ET
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 RECH S IND ET SCIENT ET filed Critical RECH S IND ET SCIENT ET
Publication of GB652701A publication Critical patent/GB652701A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type

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)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Tents Or Canopies (AREA)
  • Load-Engaging Elements For Cranes (AREA)
GB7782/48A 1947-03-20 1948-03-15 Support of workings in underground development Expired GB652701A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR652701X 1947-03-20

Publications (1)

Publication Number Publication Date
GB652701A true GB652701A (en) 1951-05-02

Family

ID=9005391

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7782/48A Expired GB652701A (en) 1947-03-20 1948-03-15 Support of workings in underground development

Country Status (6)

Country Link
US (1) US2554210A (enExample)
BE (1) BE481299A (enExample)
DE (1) DE808581C (enExample)
FR (4) FR58703E (enExample)
GB (1) GB652701A (enExample)
NL (1) NL68832C (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107902A (en) * 1958-12-29 1963-10-22 Joy Mfg Co Method of supporting mine roofs and supporting means therefor

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991097A (en) * 1948-07-08 1961-07-04 Vanwersch Aloys Connecting structure for beams of a roof support or the like
DE977123C (de) * 1948-07-30 1965-03-11 Karl Gerlach Gelenkverbindung fuer unter der Wirkung einer Spannvorrichtung verschwenkbare Kappen fuer den Grubenausbau
US2729945A (en) * 1949-03-09 1956-01-10 Gerlach Karl Mine filling frame structure comprising props and pivotally connected girders
US2749712A (en) * 1949-11-25 1956-06-12 Gerlach Karl Mine supporting structure for working mines
FR1130143A (fr) * 1955-07-27 1957-01-31 Rallonge articulée pour supports de mines
DE1169881B (de) * 1960-09-09 1964-05-14 Hermann Schwarz Kommanditgesel In der Laengsrichtung in mehrere im wesentlichen gleiche Stuecke aufgeteilte Kappe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107902A (en) * 1958-12-29 1963-10-22 Joy Mfg Co Method of supporting mine roofs and supporting means therefor

Also Published As

Publication number Publication date
NL68832C (enExample)
FR58703E (fr) 1954-03-22
FR59723E (fr) 1954-07-16
BE481299A (enExample)
FR58581E (fr) 1954-01-27
FR960300A (enExample) 1950-04-15
DE808581C (de) 1951-07-16
US2554210A (en) 1951-05-22

Similar Documents

Publication Publication Date Title
GB1272361A (en) Improvements relating to the roof support of underground mine passages and openings
GB1371751A (en) Gin pole for oil well derrick
GB652701A (en) Support of workings in underground development
GB526235A (en) Improvements in or relating to protective or warning tiles applicable for covering underground cables and the like
GB719699A (en) An improved adjustable strut for use in connection with the timbering of trenches and for other purposes
GB750229A (en) Improvements in and relating to the fixing of roof-supporting bars in coal mining
GB1213019A (en) Improvements in or relating to underground roof support systems
GB457122A (en) Improvements in and relating to roof supports for mines
SU94724A1 (ru) Устройство железнодорожного пути дл торфососного крана
GB719410A (en) Improved iron arch construction for use in mine galleries or roadways
GB398029A (en) Improved profile iron for timbering underground workings
GB804386A (en) Improvements in or relating to link bar roof supports for mining
GB843957A (en) A supporting arrangement for the roof of workface gallerles in mines
GB1443851A (en) Lattice girder
GB630576A (en) Improvements in or relating to roof construction elements
GB1056203A (en) Snubbing apparatus in combination with a portable drilling mast
GB1441400A (en) Tunnel lining erectors
GB805091A (en) Improvements in, or relating to, mine roof supporting bars
GB682984A (en) Improvements in or relating to means for connecting trough-like members for arch-like supports in mine galleries or the like
GB874435A (en) Advancing mine roof support structure for mine working faces
GB884384A (en) Means for withdrawing roof-support elements in long-wall mine workings
GB741157A (en) Improvements in systems for supporting underground galleries and roads in mines
GB756069A (en) Improvements in or relating to coal face shoring structures
GB338451A (en) Improvements in arches for supporting sides and roofs of headings and tunnels in mines and like places
GB759610A (en) Improvements in or relating to roof bars for use in underground mines