ES434740A1 - Perfeccionamientos relativos a vehiculos de transporte parametales liquidos. - Google Patents

Perfeccionamientos relativos a vehiculos de transporte parametales liquidos.

Info

Publication number
ES434740A1
ES434740A1 ES434740A ES434740A ES434740A1 ES 434740 A1 ES434740 A1 ES 434740A1 ES 434740 A ES434740 A ES 434740A ES 434740 A ES434740 A ES 434740A ES 434740 A1 ES434740 A1 ES 434740A1
Authority
ES
Spain
Prior art keywords
shield
end portion
base
excavation
another
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
ES434740A
Other languages
English (en)
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 AG filed Critical Gutehoffnungshutte Sterkrade AG
Publication of ES434740A1 publication Critical patent/ES434740A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0078—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with individual shifting devices
    • 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
    • E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support

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)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Lining And Supports For Tunnels (AREA)
ES434740A 1974-02-15 1975-02-14 Perfeccionamientos relativos a vehiculos de transporte parametales liquidos. Expired ES434740A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742407227 DE2407227B1 (de) 1974-02-15 1974-02-15 Hangendkappen-Anordnung fuer Schildausbaugestelle

Publications (1)

Publication Number Publication Date
ES434740A1 true ES434740A1 (es) 1976-12-16

Family

ID=5907477

Family Applications (1)

Application Number Title Priority Date Filing Date
ES434740A Expired ES434740A1 (es) 1974-02-15 1975-02-14 Perfeccionamientos relativos a vehiculos de transporte parametales liquidos.

Country Status (5)

Country Link
US (1) US3921409A (es)
DE (1) DE2407227B1 (es)
ES (1) ES434740A1 (es)
GB (1) GB1485902A (es)
PL (1) PL92966B1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2451764C2 (de) * 1974-10-31 1976-09-23 Rheinstahl Ag, 4300 Essen Abdichtung zwischen kappe und bruchschild eines schildausbaugestelles
DE2517732C2 (de) * 1975-04-22 1977-01-20 Kloeckner Werke Ag Spaltabdichtung zwischen dem rückragenden Teil des Hangendschildes und dem Bruchschfld eines Schildausbaugestelles
GB1494284A (en) * 1975-07-19 1977-12-07 Gullick Dobson Ltd Self-advancing mine roof supports
ZA762055B (en) * 1976-04-08 1977-05-25 Dowty Mining Equipment Ltd Mine roorf support
DE2622888B2 (de) * 1976-05-21 1978-03-16 Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum Schildausbaugestell
GB2239286B (en) * 1989-12-23 1994-03-02 Meco Mining Equip Mine roof support
US10774642B1 (en) * 2019-05-05 2020-09-15 Liaoning University Hydraulic support unit and hydraulic support for anti-rock burst roadway

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA832741A (en) * 1970-01-27 Vasilievich Martynov Boris Mechanized hydraulic timbering
CA839498A (en) * 1970-04-21 Evgenievich Yazvitsky Pavel Mine roof support assembly
NL279454A (es) * 1961-06-09
DE1224248B (de) * 1964-11-17 1966-09-08 Hermann Schwarz Kommanditgesel Ausbaugestell und damit durchfuehrbares Abbauverfahren fuer Kohlenfloeze
HU162717B (es) * 1971-03-05 1973-04-28

Also Published As

Publication number Publication date
GB1485902A (en) 1977-09-14
PL92966B1 (es) 1977-04-30
US3921409A (en) 1975-11-25
DE2407227B1 (de) 1975-06-05

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