FR993340A - Support system for mining operations by size - Google Patents

Support system for mining operations by size

Info

Publication number
FR993340A
FR993340A FR993340DA FR993340A FR 993340 A FR993340 A FR 993340A FR 993340D A FR993340D A FR 993340DA FR 993340 A FR993340 A FR 993340A
Authority
FR
France
Prior art keywords
size
support system
mining operations
mining
operations
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
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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.)
Publication date
Application granted granted Critical
Publication of FR993340A publication Critical patent/FR993340A/en
Expired 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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/70—Devices for cutting weft threads
FR993340D 1951-04-23 Support system for mining operations by size Expired FR993340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE716447X 1951-04-23

Publications (1)

Publication Number Publication Date
FR993340A true FR993340A (en) 1951-11-12

Family

ID=6626418

Family Applications (2)

Application Number Title Priority Date Filing Date
FR993340D Expired FR993340A (en) 1951-04-23 Support system for mining operations by size
FR62578D Expired FR62578E (en) 1951-04-23 1952-03-11 Support system for mining operations by size

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR62578D Expired FR62578E (en) 1951-04-23 1952-03-11 Support system for mining operations by size

Country Status (5)

Country Link
BE (2) BE496549A (en)
DE (1) DE974668C (en)
FR (2) FR62578E (en)
GB (2) GB693978A (en)
NL (1) NL79536C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780067A (en) * 1951-05-15 1957-02-05 Gutehoffnungshuette Oberhausen Roof supporting means or cap and a method of positioning the same
DE1018824B (en) * 1952-05-31 1957-11-07 Usines Et Acieries Leonard Gio Beam, especially for low-height mining areas
DE1039973B (en) * 1952-08-13 1958-10-02 Aloys Vanwersch Wedge for the articulated connection of caps
DE1043256B (en) * 1952-08-13 1958-11-13 Aloys Vanwersch Wedge for the articulated connection of caps
DE1057042B (en) * 1952-05-07 1959-05-14 Wilhelm Meier Shell iron joint connection

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749712A (en) * 1949-11-25 1956-06-12 Gerlach Karl Mine supporting structure for working mines
DE1207319B (en) * 1964-06-06 1965-12-23 Aloys Vanwersch Cap connection for pit construction in underground operations

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780067A (en) * 1951-05-15 1957-02-05 Gutehoffnungshuette Oberhausen Roof supporting means or cap and a method of positioning the same
DE1057042B (en) * 1952-05-07 1959-05-14 Wilhelm Meier Shell iron joint connection
DE1018824B (en) * 1952-05-31 1957-11-07 Usines Et Acieries Leonard Gio Beam, especially for low-height mining areas
DE1039973B (en) * 1952-08-13 1958-10-02 Aloys Vanwersch Wedge for the articulated connection of caps
DE1043256B (en) * 1952-08-13 1958-11-13 Aloys Vanwersch Wedge for the articulated connection of caps

Also Published As

Publication number Publication date
BE496549A (en) 1950-12-23
GB693978A (en) 1953-07-08
NL79536C (en) 1955-11-15
DE974668C (en) 1961-03-23
FR62578E (en) 1955-06-15
GB716447A (en) 1954-10-06
BE510061A (en) 1952-09-19

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