FR1351922A - étançon de mine extensible - Google Patents

étançon de mine extensible

Info

Publication number
FR1351922A
FR1351922A FR929116A FR929116A FR1351922A FR 1351922 A FR1351922 A FR 1351922A FR 929116 A FR929116 A FR 929116A FR 929116 A FR929116 A FR 929116A FR 1351922 A FR1351922 A FR 1351922A
Authority
FR
France
Prior art keywords
extendable
mine prop
prop
mine
extendable mine
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
FR929116A
Other languages
English (en)
French (fr)
Inventor
Karl Gerlach
Hans Gerlach
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
Priority to BE630020D priority Critical patent/BE630020A/xx
Application filed filed Critical
Priority to FR929116A priority patent/FR1351922A/fr
Application granted granted Critical
Publication of FR1351922A publication Critical patent/FR1351922A/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
    • E21D15/14—Telescopic props
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
    • 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
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations

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)
FR929116A 1963-03-25 1963-03-25 étançon de mine extensible Expired FR1351922A (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE630020D BE630020A (enrdf_load_stackoverflow) 1963-03-25
FR929116A FR1351922A (fr) 1963-03-25 1963-03-25 étançon de mine extensible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR929116A FR1351922A (fr) 1963-03-25 1963-03-25 étançon de mine extensible

Publications (1)

Publication Number Publication Date
FR1351922A true FR1351922A (fr) 1964-02-07

Family

ID=8800008

Family Applications (1)

Application Number Title Priority Date Filing Date
FR929116A Expired FR1351922A (fr) 1963-03-25 1963-03-25 étançon de mine extensible

Country Status (2)

Country Link
BE (1) BE630020A (enrdf_load_stackoverflow)
FR (1) FR1351922A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1227409B (de) * 1964-12-31 1966-10-27 Karl Gerlach Hydraulisch ausfahrbarer und reibungsschluessig verspannbarer Teleskopgrubenstempel
FR2297994A1 (fr) * 1975-01-15 1976-08-13 Banyaszati Kutato Intezet Etai hydraulique de mine
US4037811A (en) * 1975-12-24 1977-07-26 Oconnor Chadwell Vertical control for instrument support structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1227409B (de) * 1964-12-31 1966-10-27 Karl Gerlach Hydraulisch ausfahrbarer und reibungsschluessig verspannbarer Teleskopgrubenstempel
FR2297994A1 (fr) * 1975-01-15 1976-08-13 Banyaszati Kutato Intezet Etai hydraulique de mine
US4037811A (en) * 1975-12-24 1977-07-26 Oconnor Chadwell Vertical control for instrument support structure

Also Published As

Publication number Publication date
BE630020A (enrdf_load_stackoverflow)

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