FR978150A - Improvements to props and similar, in particular for mining work - Google Patents

Improvements to props and similar, in particular for mining work

Info

Publication number
FR978150A
FR978150A FR978150DA FR978150A FR 978150 A FR978150 A FR 978150A FR 978150D A FR978150D A FR 978150DA FR 978150 A FR978150 A FR 978150A
Authority
FR
France
Prior art keywords
props
similar
mining work
mining
work
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.)
NOUVELLE SOC DES ATELIERS PATT
Original Assignee
NOUVELLE SOC DES ATELIERS PATT
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 NOUVELLE SOC DES ATELIERS PATT filed Critical NOUVELLE SOC DES ATELIERS PATT
Application granted granted Critical
Publication of FR978150A publication Critical patent/FR978150A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/40—Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR978150D 1948-02-04 1948-12-22 Improvements to props and similar, in particular for mining work Expired FR978150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE978150X 1948-02-04

Publications (1)

Publication Number Publication Date
FR978150A true FR978150A (en) 1951-04-10

Family

ID=3891008

Family Applications (1)

Application Number Title Priority Date Filing Date
FR978150D Expired FR978150A (en) 1948-02-04 1948-12-22 Improvements to props and similar, in particular for mining work

Country Status (1)

Country Link
FR (1) FR978150A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381904A1 (en) * 1978-02-15 1978-09-22 Gruenzweig Hartmann Glasfaser Underground mining support profile assembly - has M-sections which can slide in each other for adjustment with double locking partially by friction and fully by cams
EP0003707A1 (en) * 1978-02-15 1979-08-22 Roger Emile Léon Joseph Capela Device for assembling two adjacent channel arch members of a gallery lining
FR2441051A2 (en) * 1978-11-09 1980-06-06 Capela Roger Clamp for telescopic channel sections of gallery support arch - has stirrup with shaped projection in base and cams giving progressive locking action

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381904A1 (en) * 1978-02-15 1978-09-22 Gruenzweig Hartmann Glasfaser Underground mining support profile assembly - has M-sections which can slide in each other for adjustment with double locking partially by friction and fully by cams
EP0003707A1 (en) * 1978-02-15 1979-08-22 Roger Emile Léon Joseph Capela Device for assembling two adjacent channel arch members of a gallery lining
FR2441051A2 (en) * 1978-11-09 1980-06-06 Capela Roger Clamp for telescopic channel sections of gallery support arch - has stirrup with shaped projection in base and cams giving progressive locking action

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