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FR1002264A - Iron timbering for mine clearance sites - Google Patents

Iron timbering for mine clearance sites

Info

Publication number
FR1002264A
FR1002264A FR1002264DA FR1002264A FR 1002264 A FR1002264 A FR 1002264A FR 1002264D A FR1002264D A FR 1002264DA FR 1002264 A FR1002264 A FR 1002264A
Authority
FR
France
Prior art keywords
timbering
iron
mine clearance
clearance sites
sites
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)
Inventor
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
Application granted granted Critical
Publication of FR1002264A publication Critical patent/FR1002264A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/10—Details of mine caps for engaging the tops of pit-props, with or without retaining-plates; Retaining-plates
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Emergency Lowering Means (AREA)
FR1002264D 1946-08-28 1946-08-28 Iron timbering for mine clearance sites Expired FR1002264A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1002264T 1946-08-28

Publications (1)

Publication Number Publication Date
FR1002264A true FR1002264A (en) 1952-03-04

Family

ID=9561997

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1002264D Expired FR1002264A (en) 1946-08-28 1946-08-28 Iron timbering for mine clearance sites

Country Status (2)

Country Link
BE (1) BE475032A (en)
FR (1) FR1002264A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203660A (en) * 1964-08-26 1965-08-31 Symons Mfg Co T-head stabilizer for a shore
US3237903A (en) * 1964-06-23 1966-03-01 Gewerk Eisenhuette Westfalia Roof support cap for mining prop means

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL174344B (en) * 1951-12-05 Brichima Spa PROCESS FOR PREPARING A MIXTURE OF CATECHOL AND HYDROQUINONE.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237903A (en) * 1964-06-23 1966-03-01 Gewerk Eisenhuette Westfalia Roof support cap for mining prop means
US3203660A (en) * 1964-08-26 1965-08-31 Symons Mfg Co T-head stabilizer for a shore

Also Published As

Publication number Publication date
BE475032A (en)

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