AT350617B - LIFTING BLADE - Google Patents

LIFTING BLADE

Info

Publication number
AT350617B
AT350617B AT177877A AT177877A AT350617B AT 350617 B AT350617 B AT 350617B AT 177877 A AT177877 A AT 177877A AT 177877 A AT177877 A AT 177877A AT 350617 B AT350617 B AT 350617B
Authority
AT
Austria
Prior art keywords
lifting blade
lifting
blade
Prior art date
Application number
AT177877A
Other languages
German (de)
Other versions
ATA177877A (en
Original Assignee
Gewerk Eisenhuette Westfalia
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 Gewerk Eisenhuette Westfalia filed Critical Gewerk Eisenhuette Westfalia
Publication of ATA177877A publication Critical patent/ATA177877A/en
Application granted granted Critical
Publication of AT350617B publication Critical patent/AT350617B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • 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
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
    • E21D9/0875—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket
    • E21D9/0879—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket the shield being provided with devices for lining the tunnel, e.g. shuttering
AT177877A 1976-05-14 1977-03-16 LIFTING BLADE AT350617B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2621421A DE2621421C2 (en) 1976-05-14 1976-05-14 Torque support for a propulsion shield

Publications (2)

Publication Number Publication Date
ATA177877A ATA177877A (en) 1978-11-15
AT350617B true AT350617B (en) 1979-06-11

Family

ID=5977969

Family Applications (1)

Application Number Title Priority Date Filing Date
AT177877A AT350617B (en) 1976-05-14 1977-03-16 LIFTING BLADE

Country Status (5)

Country Link
AT (1) AT350617B (en)
CH (1) CH615978A5 (en)
DE (1) DE2621421C2 (en)
ES (1) ES457825A1 (en)
FR (1) FR2351244A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259073A (en) * 1977-01-17 1981-03-31 Emmons James D Extra coronal attachment
DE2755421C2 (en) * 1977-12-13 1985-07-11 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Torque support for a propulsion shield
DE3033480A1 (en) * 1980-09-05 1982-04-22 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen DRIVING SHIELD, ESPECIALLY KNIFE SHIELD
CN102337899A (en) * 2011-08-30 2012-02-01 中国铁建重工集团有限公司 Direction-adjusting device for open-type full-section hard rock tunneling machine

Also Published As

Publication number Publication date
ATA177877A (en) 1978-11-15
DE2621421A1 (en) 1977-12-01
FR2351244A1 (en) 1977-12-09
DE2621421C2 (en) 1985-01-03
ES457825A1 (en) 1978-08-16
FR2351244B1 (en) 1982-07-30
CH615978A5 (en) 1980-02-29

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties