GB729171A - Improvements relating to beams for mine supports - Google Patents

Improvements relating to beams for mine supports

Info

Publication number
GB729171A
GB729171A GB3266652A GB3266652A GB729171A GB 729171 A GB729171 A GB 729171A GB 3266652 A GB3266652 A GB 3266652A GB 3266652 A GB3266652 A GB 3266652A GB 729171 A GB729171 A GB 729171A
Authority
GB
United Kingdom
Prior art keywords
beams
supports
mine
improvements relating
wedge
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
GB3266652A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB729171A publication Critical patent/GB729171A/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)
  • Working Measures On Existing Buildindgs (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

729,171. Mine roof supports. REPPEL, W. Dec. 23, 1952 [Dec. 29, 1951], No. 32666/52. Class 20 (2). Mine roof beams 1, 6 are connected to swing in a vertical plane by an intermediate member 4 pivoted by bolt 7 to one beam 6 and having a pin 5 which is adapted to be inserted laterally into a jaw 2 on the end of the other beam 1. The member 4 engages the bearer 6 by a forked part between which and the beam, spring friction washers are placed. A wedge 10 supports the beam 1 horizontally after the beam 6 has been supported by a mine prop 17. The member 10 may be parallel sided and formed in two parts 12 adapted to be separated by a wedge.
GB3266652A 1951-12-29 1952-12-23 Improvements relating to beams for mine supports Expired GB729171A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1951R0007973 DE919344C (en) 1951-12-29 1951-12-29 Articulated connection with two hinge points of caps for longwall construction, especially for the punch-free mining front

Publications (1)

Publication Number Publication Date
GB729171A true GB729171A (en) 1955-05-04

Family

ID=7397773

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3266652A Expired GB729171A (en) 1951-12-29 1952-12-23 Improvements relating to beams for mine supports

Country Status (5)

Country Link
BE (1) BE516589A (en)
DE (1) DE919344C (en)
FR (1) FR1069747A (en)
GB (1) GB729171A (en)
NL (2) NL174889B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180802A (en) * 1960-12-20 1965-04-27 Combustion Eng Boiling water nuclear reactor system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1186819B (en) * 1955-02-04 1965-02-11 Aloys Vanwersch Articulated connection of caps for longwall mining in underground operations

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE819233C (en) * 1948-10-02 1951-10-31 Gelsenkirchener Bergwerks Akti Articulated connection, especially for connecting two steel caps in mining operations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180802A (en) * 1960-12-20 1965-04-27 Combustion Eng Boiling water nuclear reactor system

Also Published As

Publication number Publication date
BE516589A (en)
DE919344C (en) 1954-10-21
NL174889B (en)
FR1069747A (en) 1954-07-12
NL86462C (en)

Similar Documents

Publication Publication Date Title
GB729171A (en) Improvements relating to beams for mine supports
GB750229A (en) Improvements in and relating to the fixing of roof-supporting bars in coal mining
GB865922A (en) Mine roof supports
GB726000A (en) Improvements in lagging irons for mines
GB712963A (en) Improvements in mine roof support caps
GB722202A (en) Improvements in lagging members for mine galleries and the like
GB912987A (en) Improvements in or relating to rock bolts
GB704296A (en) Improvements in or relating to metal props for mines and the like
GB769790A (en) Improvements in and relating to expansion bolts
GB1002038A (en) Base plates for pit props
GB1295075A (en)
GB770741A (en) Improvements in connecting means for caps used in mining
GB621540A (en) An improvement in cable stoppers
GB697750A (en) Improvements connected with scaffolding for chimney stacks and the like
GB702271A (en) Improvements in and relating to telescopic props for mines
GB633989A (en) Improvements in or relating to metallic pit-props
GB778624A (en) Improvements in or relating to props, shoring devices and the like
GB723692A (en) An improved chock release for use in mines and the like
GB709240A (en) Improvements relating to roof supporting structures, as used in mines
GB725697A (en) An improved adjustable support or prop for building work or the like
GB756069A (en) Improvements in or relating to coal face shoring structures
GB706020A (en) Improvements in means for assembling mine roof supporting beams
GB719170A (en) Improvements in or relating to propping-up devices for mines
GB766258A (en) Improvements in or relating to pit props
GB685024A (en) Improvements in or relating to props, especially pit-props