GB1277156A - Prop on which a roof support bar is secured - Google Patents

Prop on which a roof support bar is secured

Info

Publication number
GB1277156A
GB1277156A GB3290170A GB3290170A GB1277156A GB 1277156 A GB1277156 A GB 1277156A GB 3290170 A GB3290170 A GB 3290170A GB 3290170 A GB3290170 A GB 3290170A GB 1277156 A GB1277156 A GB 1277156A
Authority
GB
United Kingdom
Prior art keywords
prop
secured
support bar
roof support
july
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
GB3290170A
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.)
Kloeckner Werke AG
Original Assignee
Kloeckner Werke 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 Kloeckner Werke AG filed Critical Kloeckner Werke AG
Publication of GB1277156A publication Critical patent/GB1277156A/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

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)
  • Bridges Or Land Bridges (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
GB3290170A 1969-07-23 1970-07-07 Prop on which a roof support bar is secured Expired GB1277156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691937318 DE1937318A1 (de) 1969-07-23 1969-07-23 Stempel,an welchem eine Ausbaukappe befestigt ist

Publications (1)

Publication Number Publication Date
GB1277156A true GB1277156A (en) 1972-06-07

Family

ID=5740585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3290170A Expired GB1277156A (en) 1969-07-23 1970-07-07 Prop on which a roof support bar is secured

Country Status (4)

Country Link
BE (1) BE752931A (cg-RX-API-DMAC7.html)
DE (1) DE1937318A1 (cg-RX-API-DMAC7.html)
FR (1) FR2056203A5 (cg-RX-API-DMAC7.html)
GB (1) GB1277156A (cg-RX-API-DMAC7.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2142299A5 (cg-RX-API-DMAC7.html) * 1971-06-17 1973-01-26 Bennes Marrel
US4004771A (en) * 1972-09-09 1977-01-25 Gewerkschaft Eisenhutte Westfalia Ball-and-socket type connections for use with mining apparatus
FR2505925A1 (fr) * 1981-05-12 1982-11-19 Alsace Mines Potasse Dispositif mecanique de liaison entre tete ou pied d'etancon et embase ou chapeau des piles de soutenement

Also Published As

Publication number Publication date
BE752931A (fr) 1970-12-16
FR2056203A5 (cg-RX-API-DMAC7.html) 1971-05-14
DE1937318A1 (de) 1971-02-11

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees