FR1370086A - Improvement in piers for walking support - Google Patents

Improvement in piers for walking support

Info

Publication number
FR1370086A
FR1370086A FR940845A FR940845A FR1370086A FR 1370086 A FR1370086 A FR 1370086A FR 940845 A FR940845 A FR 940845A FR 940845 A FR940845 A FR 940845A FR 1370086 A FR1370086 A FR 1370086A
Authority
FR
France
Prior art keywords
piers
improvement
walking support
walking
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
FR940845A
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.)
Houilleres du Bassin du Nord et du Pas de Calais
Original Assignee
Houilleres du Bassin du Nord et du Pas de Calais
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 Houilleres du Bassin du Nord et du Pas de Calais filed Critical Houilleres du Bassin du Nord et du Pas de Calais
Priority to FR940845A priority Critical patent/FR1370086A/en
Application granted granted Critical
Publication of FR1370086A publication Critical patent/FR1370086A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/10—Anchorings for conveyors
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith

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)
  • Mechanical Engineering (AREA)
FR940845A 1963-07-09 1963-07-09 Improvement in piers for walking support Expired FR1370086A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR940845A FR1370086A (en) 1963-07-09 1963-07-09 Improvement in piers for walking support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR940845A FR1370086A (en) 1963-07-09 1963-07-09 Improvement in piers for walking support

Publications (1)

Publication Number Publication Date
FR1370086A true FR1370086A (en) 1964-08-21

Family

ID=8807892

Family Applications (1)

Application Number Title Priority Date Filing Date
FR940845A Expired FR1370086A (en) 1963-07-09 1963-07-09 Improvement in piers for walking support

Country Status (1)

Country Link
FR (1) FR1370086A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290906B (en) * 1964-11-26 1969-03-20 Gullick Ltd Wandering pit support for struts
DE1483910B1 (en) * 1966-11-16 1969-11-06 Groetschel Dipl Ing Karl M Traveling extension unit in the form of a three-man team

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290906B (en) * 1964-11-26 1969-03-20 Gullick Ltd Wandering pit support for struts
DE1483910B1 (en) * 1966-11-16 1969-11-06 Groetschel Dipl Ing Karl M Traveling extension unit in the form of a three-man team

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