FR1499329A - Walk-behind support intended for use in a pruning - Google Patents

Walk-behind support intended for use in a pruning

Info

Publication number
FR1499329A
FR1499329A FR75799A FR75799A FR1499329A FR 1499329 A FR1499329 A FR 1499329A FR 75799 A FR75799 A FR 75799A FR 75799 A FR75799 A FR 75799A FR 1499329 A FR1499329 A FR 1499329A
Authority
FR
France
Prior art keywords
pruning
walk
support intended
behind support
behind
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
FR75799A
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Priority to FR75799A priority Critical patent/FR1499329A/en
Application granted granted Critical
Publication of FR1499329A publication Critical patent/FR1499329A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0418—Positioning devices and stabilizing means for the props
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/08—Advancing mechanisms
    • E21D23/081—Advancing mechanisms forming parts of the roof supports
    • E21D23/083—Advancing mechanisms forming parts of the roof supports acting on a firm abutment adapted thereto

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
FR75799A 1966-09-09 1966-09-09 Walk-behind support intended for use in a pruning Expired FR1499329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR75799A FR1499329A (en) 1966-09-09 1966-09-09 Walk-behind support intended for use in a pruning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR75799A FR1499329A (en) 1966-09-09 1966-09-09 Walk-behind support intended for use in a pruning

Publications (1)

Publication Number Publication Date
FR1499329A true FR1499329A (en) 1967-10-27

Family

ID=8616812

Family Applications (1)

Application Number Title Priority Date Filing Date
FR75799A Expired FR1499329A (en) 1966-09-09 1966-09-09 Walk-behind support intended for use in a pruning

Country Status (1)

Country Link
FR (1) FR1499329A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372957A1 (en) * 1976-12-04 1978-06-30 Gewerk Eisenhuette Westfalia SUPPORT KIT FOR USE IN MINES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372957A1 (en) * 1976-12-04 1978-06-30 Gewerk Eisenhuette Westfalia SUPPORT KIT FOR USE IN MINES

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