FR1169098A - étançon de mine - Google Patents

étançon de mine

Info

Publication number: FR1169098A
Authority: FR; France
Prior art keywords: mine prop; prop; mine
Prior art date: 1957-01-30
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

English (en)

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.)

1957-01-30

Filing date

1957-01-30

Publication date

1958-12-22

1957-01-30 Application filed filed Critical

1958-12-22 Application granted granted Critical

1958-12-22 Publication of FR1169098A publication Critical patent/FR1169098A/fr

Status Expired legal-status Critical Current

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
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/42—Telescopic props with parts held relatively to each other by friction or gripping with special parts to influence the friction
- 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
- E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section

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)

FR1169098D 1957-01-30 1957-01-30 étançon de mine Expired FR1169098A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR1169098T		1957-01-30

Publications (1)

Publication Number	Publication Date
FR1169098A true FR1169098A (fr)	1958-12-22

Family

ID=9656327

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1169098D Expired FR1169098A (fr)	1957-01-30	1957-01-30	étançon de mine

Country Status (1)

Country	Link
FR (1)	FR1169098A (fr)

1957
- 1957-01-30 FR FR1169098D patent/FR1169098A/fr not_active Expired

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