GB672704A - Improvements in or relating to means for the end-to-end connection of roof supporting bars in underground workings - Google Patents

Improvements in or relating to means for the end-to-end connection of roof supporting bars in underground workings

Info

Publication number
GB672704A
GB672704A GB1179249A GB1179249A GB672704A GB 672704 A GB672704 A GB 672704A GB 1179249 A GB1179249 A GB 1179249A GB 1179249 A GB1179249 A GB 1179249A GB 672704 A GB672704 A GB 672704A
Authority
GB
United Kingdom
Prior art keywords
bar
shoe
straps
bars
roof supporting
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
GB1179249A
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.)
Gutehoffnungshutte Oberhausen AG
Original Assignee
Gutehoffnungshutte Oberhausen AG
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 to DEP34855A priority Critical patent/DE829146C/de
Priority to NL145754A priority patent/NL73198C/xx
Priority to FR987597D priority patent/FR987597A/fr
Priority to BE488429D priority patent/BE488429A/xx
Application filed by Gutehoffnungshutte Oberhausen AG filed Critical Gutehoffnungshutte Oberhausen AG
Priority to GB1179249A priority patent/GB672704A/en
Publication of GB672704A publication Critical patent/GB672704A/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)
  • Architecture (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
GB1179249A 1949-02-23 1949-05-03 Improvements in or relating to means for the end-to-end connection of roof supporting bars in underground workings Expired GB672704A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DEP34855A DE829146C (de) 1949-02-23 1949-02-23 Verfahren und Vorrichtung zum Aneinanderreihen von Kappen
NL145754A NL73198C (da) 1949-05-03 1949-04-01
FR987597D FR987597A (fr) 1949-05-03 1949-04-06 Procédé et dispositif pour le montage à la suite de rallonges de soutènement
BE488429D BE488429A (da) 1949-05-03 1949-04-15
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

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
GB672704A true GB672704A (en) 1952-05-28

Family

ID=9992789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1179249A Expired GB672704A (en) 1949-02-23 1949-05-03 Improvements in or relating to means for the end-to-end connection of roof supporting bars in underground workings

Country Status (5)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108244759A (zh) * 2018-01-20 2018-07-06 张朝辉 一种沿条鞋及其注塑模具

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977597C (de) * 1950-11-01 1967-06-22 Ludwig Vanwersch Ausbaukappe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108244759A (zh) * 2018-01-20 2018-07-06 张朝辉 一种沿条鞋及其注塑模具
CN108244759B (zh) * 2018-01-20 2024-04-16 张朝辉 一种沿条鞋及其注塑模具

Also Published As

Publication number Publication date
BE488429A (da) 1949-04-30
DE829146C (de) 1952-01-24
NL73198C (da) 1953-09-15
FR987597A (fr) 1951-08-16

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