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FR1135845A - Timber cap usable for advancing pruning support, especially in mines - Google Patents

Timber cap usable for advancing pruning support, especially in mines

Info

Publication number
FR1135845A
FR1135845A FR1135845DA FR1135845A FR 1135845 A FR1135845 A FR 1135845A FR 1135845D A FR1135845D A FR 1135845DA FR 1135845 A FR1135845 A FR 1135845A
Authority
FR
France
Prior art keywords
mines
advancing
pruning support
cap usable
timber cap
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.)
SCHWARZ KG HERMANN
Hermann Schwarz KG
Original Assignee
SCHWARZ KG HERMANN
Hermann Schwarz 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.)
Filing date
Publication date
Application filed by SCHWARZ KG HERMANN, Hermann Schwarz KG filed Critical SCHWARZ KG HERMANN
Application granted granted Critical
Publication of FR1135845A publication Critical patent/FR1135845A/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
    • E21D17/02—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

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)
  • Heat Sensitive Colour Forming Recording (AREA)
FR1135845D 1954-08-19 1955-08-16 Timber cap usable for advancing pruning support, especially in mines Expired FR1135845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE799739X 1954-08-19

Publications (1)

Publication Number Publication Date
FR1135845A true FR1135845A (en) 1957-05-03

Family

ID=6711673

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1135845D Expired FR1135845A (en) 1954-08-19 1955-08-16 Timber cap usable for advancing pruning support, especially in mines

Country Status (4)

Country Link
BE (1) BE540613A (en)
FR (1) FR1135845A (en)
GB (1) GB799739A (en)
NL (1) NL111909C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2959438A (en) * 1958-03-18 1960-11-08 Schwarz Kg Hermann Connection of foldable caps
US2991101A (en) * 1948-07-08 1961-07-04 Eisenwerk Wanheim G M B H Fa Connecting structure for beams of a roof support or the like

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3043108A (en) * 1958-07-16 1962-07-10 Vanwersch Aloys Mine roof bar arrangement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991101A (en) * 1948-07-08 1961-07-04 Eisenwerk Wanheim G M B H Fa Connecting structure for beams of a roof support or the like
US2991103A (en) * 1948-07-08 1961-07-04 Eisenwerk Wanheim G M B H Fa Connecting structure for beams of a roof support or the like
US2991104A (en) * 1948-07-08 1961-07-04 Eisenwerk Wanheim G M B H Fa Connecting structure for beams of a roof support or the like
US2991102A (en) * 1948-07-08 1961-07-04 Eisenwerk Wanheim G M B H Fa Connecting structure for beams of a roof support or the like
US2959438A (en) * 1958-03-18 1960-11-08 Schwarz Kg Hermann Connection of foldable caps

Also Published As

Publication number Publication date
BE540613A (en)
NL111909C (en)
GB799739A (en) 1958-08-13

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