FR1283065A - Perfectionnements aux étançons et vérins - Google Patents

Perfectionnements aux étançons et vérins

Info

Publication number
FR1283065A
FR1283065A FR854949A FR854949A FR1283065A FR 1283065 A FR1283065 A FR 1283065A FR 854949 A FR854949 A FR 854949A FR 854949 A FR854949 A FR 854949A FR 1283065 A FR1283065 A FR 1283065A
Authority
FR
France
Prior art keywords
props
jacks
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
FR854949A
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.)
Acrow Engineers Ltd
Original Assignee
Acrow Engineers Ltd
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 Acrow Engineers Ltd filed Critical Acrow Engineers Ltd
Priority to FR854949A priority Critical patent/FR1283065A/fr
Application granted granted Critical
Publication of FR1283065A publication Critical patent/FR1283065A/fr
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
    • E21D15/50—Component parts or details of props
    • E21D15/54—Details of the ends of props
    • E21D15/55—Details of the ends of props of prop heads or feet

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)
FR854949A 1961-03-08 1961-03-08 Perfectionnements aux étançons et vérins Expired FR1283065A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR854949A FR1283065A (fr) 1961-03-08 1961-03-08 Perfectionnements aux étançons et vérins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR854949A FR1283065A (fr) 1961-03-08 1961-03-08 Perfectionnements aux étançons et vérins

Publications (1)

Publication Number Publication Date
FR1283065A true FR1283065A (fr) 1962-01-27

Family

ID=8750389

Family Applications (1)

Application Number Title Priority Date Filing Date
FR854949A Expired FR1283065A (fr) 1961-03-08 1961-03-08 Perfectionnements aux étançons et vérins

Country Status (1)

Country Link
FR (1) FR1283065A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243610B (de) * 1964-07-09 1967-07-06 Hermann Schwarz Kommanditgesel Druckmittelbetriebener Grubenstempel
US4793451A (en) * 1982-09-17 1988-12-27 Tayco Developments, Inc. Energy absorber device with plastic casing and screw-in plastic seal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243610B (de) * 1964-07-09 1967-07-06 Hermann Schwarz Kommanditgesel Druckmittelbetriebener Grubenstempel
US4793451A (en) * 1982-09-17 1988-12-27 Tayco Developments, Inc. Energy absorber device with plastic casing and screw-in plastic seal

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