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.)
Gutehoffnungshutte Sterkrade AG
Original Assignee
Gutehoffnungshutte Sterkrade AG
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 Gutehoffnungshutte Sterkrade AGfiledCriticalGutehoffnungshutte Sterkrade AG
Application grantedgrantedCritical
Publication of FR1122975ApublicationCriticalpatent/FR1122975A/fr
E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
E21D9/126—Loading devices or installations
E21D9/128—Loader-conveyors with gathering arms
Landscapes
Engineering & Computer Science
(AREA)
Mining & Mineral Resources
(AREA)
Environmental & Geological Engineering
(AREA)
Life Sciences & Earth Sciences
(AREA)
General Life Sciences & Earth Sciences
(AREA)
Geochemistry & Mineralogy
(AREA)
Geology
(AREA)
FR1122975D1954-04-241955-04-23Disque chargeur à l'extrémité d'entrée d'un convoyeur en particulier pour une installation de convoyage à fond de mine
ExpiredFR1122975A
(fr)
Transporteur à raclettes à deux chaînes pour l'exploitation de gisements miniers en dressant avec organes placés du côté du remblai pour le guidage d'un rabot à charbon.
Perfectionnements apportés aux moyens pour mesurer, à l'aide de rayons infrarouges, une distance, notamment la distance d'un engin volant, d'avec le sol