FR1400184A - Multi-part mine prop with friction vice - Google Patents

Multi-part mine prop with friction vice

Info

Publication number
FR1400184A
FR1400184A FR980646A FR980646A FR1400184A FR 1400184 A FR1400184 A FR 1400184A FR 980646 A FR980646 A FR 980646A FR 980646 A FR980646 A FR 980646A FR 1400184 A FR1400184 A FR 1400184A
Authority
FR
France
Prior art keywords
mine prop
part mine
friction vice
vice
friction
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
FR980646A
Other languages
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
Application filed filed Critical
Priority to FR980646A priority Critical patent/FR1400184A/en
Application granted granted Critical
Publication of FR1400184A publication Critical patent/FR1400184A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
FR980646A 1964-07-03 1964-07-03 Multi-part mine prop with friction vice Expired FR1400184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR980646A FR1400184A (en) 1964-07-03 1964-07-03 Multi-part mine prop with friction vice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR980646A FR1400184A (en) 1964-07-03 1964-07-03 Multi-part mine prop with friction vice

Publications (1)

Publication Number Publication Date
FR1400184A true FR1400184A (en) 1965-05-21

Family

ID=8833874

Family Applications (1)

Application Number Title Priority Date Filing Date
FR980646A Expired FR1400184A (en) 1964-07-03 1964-07-03 Multi-part mine prop with friction vice

Country Status (1)

Country Link
FR (1) FR1400184A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2540238A1 (en) * 1983-01-27 1984-08-03 Serat Improvements made to double hollow charges
US4596484A (en) * 1984-10-05 1986-06-24 Velbon International Corporation Lock for telescoping tubular support

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2540238A1 (en) * 1983-01-27 1984-08-03 Serat Improvements made to double hollow charges
US4596484A (en) * 1984-10-05 1986-06-24 Velbon International Corporation Lock for telescoping tubular support

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