GB827618A - Improvements in pivoted roof bars for mines - Google Patents

Improvements in pivoted roof bars for mines

Info

Publication number
GB827618A
GB827618A GB3164556A GB3164556A GB827618A GB 827618 A GB827618 A GB 827618A GB 3164556 A GB3164556 A GB 3164556A GB 3164556 A GB3164556 A GB 3164556A GB 827618 A GB827618 A GB 827618A
Authority
GB
United Kingdom
Prior art keywords
wedge
pin
mines
klonne
bars
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
GB3164556A
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.)
AUGUST KLONNE
Original Assignee
AUGUST KLONNE
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
Priority claimed from DEK28755A external-priority patent/DE1058459B/de
Application filed by AUGUST KLONNE filed Critical AUGUST KLONNE
Publication of GB827618A publication Critical patent/GB827618A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/02—Trunnions; Crank-pins
    • 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)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
GB3164556A 1956-05-03 1956-10-17 Improvements in pivoted roof bars for mines Expired GB827618A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEK28755A DE1058459B (de) 1956-05-03 1956-05-03 Gelenkige Kappenverbindung
DEK35702A DE1110589B (de) 1956-05-03 1958-09-06 Gelenkige Kappenverbindung

Publications (1)

Publication Number Publication Date
GB827618A true GB827618A (en) 1960-02-10

Family

ID=25983003

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3164556A Expired GB827618A (en) 1956-05-03 1956-10-17 Improvements in pivoted roof bars for mines

Country Status (4)

Country Link
BE (1) BE548772A (fr)
DE (1) DE1110589B (fr)
FR (1) FR1151338A (fr)
GB (1) GB827618A (fr)

Also Published As

Publication number Publication date
BE548772A (fr)
DE1110589B (de) 1961-07-13
FR1151338A (fr) 1958-01-29

Similar Documents

Publication Publication Date Title
GB827618A (en) Improvements in pivoted roof bars for mines
GB840741A (en) Improvements relating to anchor bolts
GB570889A (en) Improvements in set screws for coal cutters
GB760604A (en) Improvements in lagging irons for use in mines
GB1102194A (en) A pit prop with a detachably-secured prop shoe
GB865922A (en) Mine roof supports
GB722202A (en) Improvements in lagging members for mine galleries and the like
GB794008A (en) Roof bar for mine roof support systems
GB845976A (en) A support bar for underground workings
GB726000A (en) Improvements in lagging irons for mines
GB774109A (en) Improvements in or relating to mine roof support assemblies
GB924859A (en) H-beam pile cutter in combination with an h-beam pile
GB785063A (en) Connection for lagging irons for use in mines
GB891140A (en) Improvements in or relating to mine roof supporting bars
GB770741A (en) Improvements in connecting means for caps used in mining
GB763111A (en) Improvements relating to constructional elements
GB759610A (en) Improvements in or relating to roof bars for use in underground mines
GB1178119A (en) Temporary Extensible Cantilever for Mine Roof Supports
GB983551A (en) An advancing mine roof support
GB924372A (en) Improvements in or relating to roof support elements for mines
GB756069A (en) Improvements in or relating to coal face shoring structures
GB717230A (en) Angularly adjustable girder connection for the progressive lagging of mines
GB819426A (en) Improvements in or relating to mine roof supporting structures
GB950840A (en) A bolt anchor
GB848534A (en) Mine roof bars