CA955911A - Roof support frame - Google Patents

Roof support frame

Info

Publication number
CA955911A
CA955911A CA133,593A CA133593A CA955911A CA 955911 A CA955911 A CA 955911A CA 133593 A CA133593 A CA 133593A CA 955911 A CA955911 A CA 955911A
Authority
CA
Canada
Prior art keywords
support frame
roof support
roof
frame
support
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
CA133,593A
Other versions
CA133593S (en
Inventor
Josef Welzel
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.)
Hemscheidt Hermann Maschinenfabrik GmbH and Co
Original Assignee
Hemscheidt Hermann Maschinenfabrik GmbH and Co
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 Hemscheidt Hermann Maschinenfabrik GmbH and Co filed Critical Hemscheidt Hermann Maschinenfabrik GmbH and Co
Application granted granted Critical
Publication of CA955911A publication Critical patent/CA955911A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • 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
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32262—At selected angle
    • Y10T403/32319—At selected angle including pivot stud
    • Y10T403/32409—Members locked in axial alignment
    • 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
    • Y10T403/32819—Pivoted including tension or take-up means
CA133,593A 1971-02-08 1972-01-31 Roof support frame Expired CA955911A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712105795 DE2105795A1 (en) 1971-02-08 1971-02-08 Articulated connection for caps of hydraulic support

Publications (1)

Publication Number Publication Date
CA955911A true CA955911A (en) 1974-10-08

Family

ID=5798104

Family Applications (1)

Application Number Title Priority Date Filing Date
CA133,593A Expired CA955911A (en) 1971-02-08 1972-01-31 Roof support frame

Country Status (7)

Country Link
US (1) US3748862A (en)
BE (1) BE778040A (en)
CA (1) CA955911A (en)
DE (1) DE2105795A1 (en)
FR (1) FR2124236A1 (en)
GB (1) GB1332636A (en)
PL (1) PL77334B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192021B (en) * 1986-06-26 1990-03-21 Gullick Dobson Ltd A roof engaging structure for a mine roof support

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB766495A (en) * 1954-11-26 1957-01-23 Becorit Grubenausbau Gmbh Improvements in or relating to mine-roof laggings
DE1218382B (en) * 1958-03-18 1966-06-08 Hermann Schwarz Kommanditgesel Tensile connection for articulated caps in longwall mining
DE1160390B (en) * 1961-04-28 1964-01-02 Rheinstahl Gmbh Wanheim Wandering expansion element
DE1221177B (en) * 1965-05-08 1966-07-21 Gewerk Eisenhuette Westfalia Cap pull for retractable hydraulic support frames with front peg caps
FR1530737A (en) * 1966-08-11 1968-06-28 Gewerk Eisenhuette Westfalia Cap formed from several elements for a support frame, usable in particular in mines

Also Published As

Publication number Publication date
FR2124236A1 (en) 1972-09-22
US3748862A (en) 1973-07-31
PL77334B1 (en) 1975-04-30
GB1332636A (en) 1973-10-03
BE778040A (en) 1972-05-02
DE2105795A1 (en) 1972-10-05

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