FR1246395A -
Improvements made to retaining elements in the form of a deep channel with lateral edges, more especially for retaining frames for galleries or mine corridors as well as to the processes and devices for their manufacture
- Google Patents
Improvements made to retaining elements in the form of a deep channel with lateral edges, more especially for retaining frames for galleries or mine corridors as well as to the processes and devices for their manufacture
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.)
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.)
Filing date
Publication date
Application filed by Bochumer Eisenhuette Heintzmann GmbH and Co KGfiledCriticalBochumer Eisenhuette Heintzmann GmbH and Co KG
Application grantedgrantedCritical
Publication of FR1246395ApublicationCriticalpatent/FR1246395A/en
E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
E21D11/14—Lining predominantly with metal
E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
E21D11/20—Special cross- sections, e.g. corrugated
Landscapes
Engineering & Computer Science
(AREA)
Mining & Mineral Resources
(AREA)
Architecture
(AREA)
Civil Engineering
(AREA)
Structural Engineering
(AREA)
Life Sciences & Earth Sciences
(AREA)
General Life Sciences & Earth Sciences
(AREA)
Geochemistry & Mineralogy
(AREA)
Geology
(AREA)
FR811670A1958-12-161959-11-30
Improvements made to retaining elements in the form of a deep channel with lateral edges, more especially for retaining frames for galleries or mine corridors as well as to the processes and devices for their manufacture
ExpiredFR1246395A
(en)
Improvements made to retaining elements in the form of a deep channel with lateral edges, more especially for retaining frames for galleries or mine corridors as well as to the processes and devices for their manufacture
Improvements made to retaining elements in the form of a deep channel with lateral edges, more especially for retaining frames for galleries or mine corridors as well as to the processes and devices for their manufacture
Improvements to magnetic circuits and to the elements they equip, as well as to the manufacturing processes and devices for these circuits and elements
Group of identical profiles in the shape of a deep channel to provide support for mine galleries or corridors, more specifically to form support frames or arches
Improvements made to pairs of profiles, in the shape of a deep channel with lateral edges, more especially for annular or curved support frames, with several segments, used in mines
Group of identical profiles in the shape of a deep channel to provide support for mine galleries or corridors, more specifically to form support frames or arches.