FR1181886A - telescopic hydraulic prop - Google Patents

telescopic hydraulic prop

Info

Publication number
FR1181886A
FR1181886A FR1181886DA FR1181886A FR 1181886 A FR1181886 A FR 1181886A FR 1181886D A FR1181886D A FR 1181886DA FR 1181886 A FR1181886 A FR 1181886A
Authority
FR
France
Prior art keywords
telescopic hydraulic
hydraulic prop
prop
telescopic
hydraulic
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.)
Gutehoffnungshutte Sterkrade AG
Original Assignee
Gutehoffnungshutte Sterkrade 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
Application filed by Gutehoffnungshutte Sterkrade AG filed Critical Gutehoffnungshutte Sterkrade AG
Application granted granted Critical
Publication of FR1181886A publication Critical patent/FR1181886A/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
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/517—Extension elements

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)
FR1181886D 1956-09-25 1957-09-02 telescopic hydraulic prop Expired FR1181886A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1181886X 1956-09-25

Publications (1)

Publication Number Publication Date
FR1181886A true FR1181886A (en) 1959-06-19

Family

ID=7730351

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1181886D Expired FR1181886A (en) 1956-09-25 1957-09-02 telescopic hydraulic prop

Country Status (1)

Country Link
FR (1) FR1181886A (en)

Similar Documents

Publication Publication Date Title
CH359327A (en) Hydraulic telescopic shock absorber
FR1178174A (en) hydraulic mine prop
FR1181300A (en) hydraulic prop
FR1186287A (en) hydraulic prop
FR1182336A (en) variable length mine prop
FR1147627A (en) Improvements to the props
FR1174801A (en) hydraulic prop for mines
FR1181886A (en) telescopic hydraulic prop
FR1175441A (en) hydraulic prop for supports
FR1177614A (en) Extendable hydraulic support
FR1280684A (en) hydraulic prop
FR1152314A (en) Hydraulic cylinders
FR1164867A (en) Hydraulic turbine
FR1247509A (en) hydraulic prop
FR1198137A (en) hydraulic prop
FR1175285A (en) mine prop
FR1102657A (en) hydraulic telescopic prop
FR1181864A (en) prop
FR1183327A (en) prop
FR1186071A (en) telescopic prop
FR71092E (en) telescopic prop
FR1292586A (en) hydraulic prop
CH372829A (en) Telescopic prop
BE579191A (en) Hydraulic prop
FR68541E (en) telescopic prop