FR987597A - Method and device for mounting after support extensions - Google Patents

Method and device for mounting after support extensions

Info

Publication number
FR987597A
FR987597A FR987597DA FR987597A FR 987597 A FR987597 A FR 987597A FR 987597D A FR987597D A FR 987597DA FR 987597 A FR987597 A FR 987597A
Authority
FR
France
Prior art keywords
mounting
support extensions
extensions
support
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
Other languages
French (fr)
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 MINIERES SOC ET
Original Assignee
RECH S IND ET MINIERES SOC 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 MINIERES SOC ET filed Critical RECH S IND ET MINIERES SOC ET
Application granted granted Critical
Publication of FR987597A publication Critical patent/FR987597A/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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • E04B1/2604—Connections specially adapted therefor
    • E04B1/2612—Joist hangers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
FR987597D 1949-05-03 1949-04-06 Method and device for mounting after support extensions Expired FR987597A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1179249A GB672704A (en) 1949-05-03 1949-05-03 Improvements in or relating to means for the end-to-end connection of roof supporting bars in underground workings

Publications (1)

Publication Number Publication Date
FR987597A true FR987597A (en) 1951-08-16

Family

ID=9992789

Family Applications (1)

Application Number Title Priority Date Filing Date
FR987597D Expired FR987597A (en) 1949-05-03 1949-04-06 Method and device for mounting after support extensions

Country Status (5)

Country Link
BE (1) BE488429A (en)
DE (1) DE829146C (en)
FR (1) FR987597A (en)
GB (1) GB672704A (en)
NL (1) NL73198C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977597C (en) * 1950-11-01 1967-06-22 Ludwig Vanwersch Expansion cap
CN108244759B (en) * 2018-01-20 2024-04-16 张朝辉 Welt shoes and injection mold thereof

Also Published As

Publication number Publication date
GB672704A (en) 1952-05-28
NL73198C (en) 1953-09-15
DE829146C (en) 1952-01-24
BE488429A (en) 1949-04-30

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