FR1237267A - Pressurized fluid injection pipette which can be used in particular in combination with a hydraulic prop - Google Patents

Pressurized fluid injection pipette which can be used in particular in combination with a hydraulic prop

Info

Publication number
FR1237267A
FR1237267A FR797793A FR797793A FR1237267A FR 1237267 A FR1237267 A FR 1237267A FR 797793 A FR797793 A FR 797793A FR 797793 A FR797793 A FR 797793A FR 1237267 A FR1237267 A FR 1237267A
Authority
FR
France
Prior art keywords
combination
pressurized fluid
fluid injection
hydraulic prop
injection pipette
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
FR797793A
Other languages
French (fr)
Inventor
Jacques Perrin
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 filed Critical
Priority to FR797793A priority Critical patent/FR1237267A/en
Application granted granted Critical
Publication of FR1237267A publication Critical patent/FR1237267A/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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important

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)
FR797793A 1959-06-17 1959-06-17 Pressurized fluid injection pipette which can be used in particular in combination with a hydraulic prop Expired FR1237267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR797793A FR1237267A (en) 1959-06-17 1959-06-17 Pressurized fluid injection pipette which can be used in particular in combination with a hydraulic prop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR797793A FR1237267A (en) 1959-06-17 1959-06-17 Pressurized fluid injection pipette which can be used in particular in combination with a hydraulic prop

Publications (1)

Publication Number Publication Date
FR1237267A true FR1237267A (en) 1960-07-29

Family

ID=8716160

Family Applications (1)

Application Number Title Priority Date Filing Date
FR797793A Expired FR1237267A (en) 1959-06-17 1959-06-17 Pressurized fluid injection pipette which can be used in particular in combination with a hydraulic prop

Country Status (1)

Country Link
FR (1) FR1237267A (en)

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