FR1455718A - Mine gallery construction hat - Google Patents

Mine gallery construction hat

Info

Publication number
FR1455718A
FR1455718A FR40653A FR40653A FR1455718A FR 1455718 A FR1455718 A FR 1455718A FR 40653 A FR40653 A FR 40653A FR 40653 A FR40653 A FR 40653A FR 1455718 A FR1455718 A FR 1455718A
Authority
FR
France
Prior art keywords
gallery construction
mine gallery
construction hat
hat
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
FR40653A
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 FR1455718A publication Critical patent/FR1455718A/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
    • E21D17/02—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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/01—Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section

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)
  • Tents Or Canopies (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
FR40653A 1964-12-22 1965-12-02 Mine gallery construction hat Expired FR1455718A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1964G0031374 DE1913617U (en) 1964-12-22 1964-12-22 PIT REMOVAL CAP.

Publications (1)

Publication Number Publication Date
FR1455718A true FR1455718A (en) 1966-10-14

Family

ID=7124217

Family Applications (1)

Application Number Title Priority Date Filing Date
FR40653A Expired FR1455718A (en) 1964-12-22 1965-12-02 Mine gallery construction hat

Country Status (4)

Country Link
DE (1) DE1913617U (en)
FR (1) FR1455718A (en)
GB (1) GB1119166A (en)
NL (1) NL6516415A (en)

Also Published As

Publication number Publication date
GB1119166A (en) 1968-07-10
DE1913617U (en) 1965-04-15
NL6516415A (en) 1966-06-23

Similar Documents

Publication Publication Date Title
FR1438068A (en) Accelerometer
AT285208B (en) Accelerometer
AT259362B (en) Ever-ready case
AT258837B (en) Underground expansion
FR1438690A (en) Seismic detonator
AT250689B (en) Scriber mine
AT248297B (en) Detonator
CH474740A (en) Jumping mine
FR1455718A (en) Mine gallery construction hat
BE763928R (en) CRUSHER
AT248920B (en) Armored dome
AT248345B (en) Well or tunnel armor
CH449986A (en) gyroscope
FR1473994A (en) Mine cartridge
FR1386795A (en) Crusher
FR1463230A (en) lightweight mine prop
AT255493B (en) Telescopic antenna
FR1527472A (en) Jumping mine
FR1408223A (en) Construction rubble
FI41121C (en) Mine launcher
FR1371098A (en) mine prop
FR1426010A (en) Mine prop
FR1390105A (en) hydraulic mine prop
FR1452508A (en) hydraulic mine prop
ES105537Y (en) Pocket Microneceser