FR2030353A1 - - Google Patents

Info

Publication number
FR2030353A1
FR2030353A1 FR6932299A FR6932299A FR2030353A1 FR 2030353 A1 FR2030353 A1 FR 2030353A1 FR 6932299 A FR6932299 A FR 6932299A FR 6932299 A FR6932299 A FR 6932299A FR 2030353 A1 FR2030353 A1 FR 2030353A1
Authority
FR
France
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.)
Withdrawn
Application number
FR6932299A
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of FR2030353A1 publication Critical patent/FR2030353A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32606—Pivoted
    • Y10T403/32951—Transverse pin or stud
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/51—Joints and connections including spaced, diverse connections
FR6932299A 1969-02-07 1969-09-23 Withdrawn FR2030353A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691906015 DE1906015B2 (de) 1969-02-07 1969-02-07 Gelenkverbindung fuer kappenteile von ausbaukappen

Publications (1)

Publication Number Publication Date
FR2030353A1 true FR2030353A1 (fr) 1970-11-13

Family

ID=5724551

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6932299A Withdrawn FR2030353A1 (fr) 1969-02-07 1969-09-23

Country Status (4)

Country Link
US (1) US3614141A (fr)
DE (1) DE1906015B2 (fr)
FR (1) FR2030353A1 (fr)
GB (1) GB1244923A (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE499766A (fr) * 1948-07-08
US2749712A (en) * 1949-11-25 1956-06-12 Gerlach Karl Mine supporting structure for working mines
GB794008A (en) * 1956-12-19 1958-04-23 Peter Vanwersch Roof bar for mine roof support systems

Also Published As

Publication number Publication date
US3614141A (en) 1971-10-19
DE1906015A1 (de) 1970-08-20
GB1244923A (en) 1971-09-02
DE1906015B2 (de) 1977-02-03

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Legal Events

Date Code Title Description
ST Notification of lapse