FR991112A - Serrure pour étançons métalliques - Google Patents

Serrure pour étançons métalliques

Info

Publication number
FR991112A
FR991112A FR991112DA FR991112A FR 991112 A FR991112 A FR 991112A FR 991112D A FR991112D A FR 991112DA FR 991112 A FR991112 A FR 991112A
Authority
FR
France
Prior art keywords
lock
metal props
props
metal
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
English (en)
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.)
LE PROGRES CHARBONNIER PROCHAR
Original Assignee
LE PROGRES CHARBONNIER PROCHAR
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 LE PROGRES CHARBONNIER PROCHAR filed Critical LE PROGRES CHARBONNIER PROCHAR
Application granted granted Critical
Publication of FR991112A publication Critical patent/FR991112A/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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/43—Details of wedges
    • 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
    • E21D15/40—Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted

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)
FR991112D 1949-04-04 1949-07-22 Serrure pour étançons métalliques Expired FR991112A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE991112X 1949-04-04

Publications (1)

Publication Number Publication Date
FR991112A true FR991112A (fr) 1951-10-01

Family

ID=3892234

Family Applications (1)

Application Number Title Priority Date Filing Date
FR991112D Expired FR991112A (fr) 1949-04-04 1949-07-22 Serrure pour étançons métalliques

Country Status (1)

Country Link
FR (1) FR991112A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1035080B (de) * 1952-07-11 1958-07-31 Rheinstahl Gmbh Wanheim Mehrteiliger metallischer Grubenstempel
DE971813C (de) * 1951-12-08 1959-04-02 Gutehoffnungshuette Sterkrade Mehrteiliges Schloss fuer Grubenstempel
DE1056558B (de) * 1952-05-14 1959-05-06 Ludwig Vanwersch Mehrteiliger Grubenstempel
DE1084667B (de) * 1953-01-15 1960-07-07 Elfriede Bellmann Geb Vogelsan Grubenstempel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971813C (de) * 1951-12-08 1959-04-02 Gutehoffnungshuette Sterkrade Mehrteiliges Schloss fuer Grubenstempel
DE1056558B (de) * 1952-05-14 1959-05-06 Ludwig Vanwersch Mehrteiliger Grubenstempel
DE1035080B (de) * 1952-07-11 1958-07-31 Rheinstahl Gmbh Wanheim Mehrteiliger metallischer Grubenstempel
DE1084667B (de) * 1953-01-15 1960-07-07 Elfriede Bellmann Geb Vogelsan Grubenstempel

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