ES485931A1 - A shield knife holder to perforate a tunnel, open a gallery or any other cavity in the earth or the rock (Machine-translation by Google Translate, not legally binding) - Google Patents

A shield knife holder to perforate a tunnel, open a gallery or any other cavity in the earth or the rock (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES485931A1
ES485931A1 ES485931A ES485931A ES485931A1 ES 485931 A1 ES485931 A1 ES 485931A1 ES 485931 A ES485931 A ES 485931A ES 485931 A ES485931 A ES 485931A ES 485931 A1 ES485931 A1 ES 485931A1
Authority
ES
Spain
Prior art keywords
gallery
perforate
rock
tunnel
translation
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
ES485931A
Other languages
Spanish (es)
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of ES485931A1 publication Critical patent/ES485931A1/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • E21D9/0692—Cutter drive shields

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)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

In the cutter shield used for driving cavities in the ground, thrust-piston mechanisms (17) supported on the common supporting frame (10) lie protected in the interior of the driving cutters (11). Brackets (31) for attaching the piston rods (20) of the thrust-piston mechanisms (17) are arranged at the rear end of the supporting frame (14). The piston rods (20), with the arrangement of a seal (24), are led out at the rear from the interior spaces (16) of the driving cutters (11) and are attached to the brackets (31) of the supporting frame (14). Consequently, a cutter shield which is of short construction and is therefore readily controllable can be created, contamination and jamming of the thrust-piston mechanisms (17) being avoided at the same time.
ES485931A 1978-11-16 1979-11-13 A shield knife holder to perforate a tunnel, open a gallery or any other cavity in the earth or the rock (Machine-translation by Google Translate, not legally binding) Expired ES485931A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782849776 DE2849776C2 (en) 1978-11-16 1978-11-16 Knife shield

Publications (1)

Publication Number Publication Date
ES485931A1 true ES485931A1 (en) 1980-05-16

Family

ID=6054859

Family Applications (1)

Application Number Title Priority Date Filing Date
ES485931A Expired ES485931A1 (en) 1978-11-16 1979-11-13 A shield knife holder to perforate a tunnel, open a gallery or any other cavity in the earth or the rock (Machine-translation by Google Translate, not legally binding)

Country Status (5)

Country Link
JP (1) JPS5929756B2 (en)
AT (1) AT362415B (en)
CH (1) CH643325A5 (en)
DE (1) DE2849776C2 (en)
ES (1) ES485931A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3206717A1 (en) * 1982-02-25 1983-09-01 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen KNIFE CYLINDER CONNECTION FOR KNIFE BLADES
TW201819392A (en) 2016-11-11 2018-06-01 日商積水醫療股份有限公司 Novel trityl protecting agent
EP3778621B1 (en) 2018-04-13 2023-08-23 Jitsubo Co., Ltd. Peptide synthesis method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581507A (en) * 1969-07-07 1971-06-01 Milwaukee Boiler Mfg Co Tunneling shield
DE2646586C3 (en) * 1976-10-15 1981-05-21 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Shield driving device, especially for driving rock and seam sections in underground mining operations

Also Published As

Publication number Publication date
CH643325A5 (en) 1984-05-30
JPS5929756B2 (en) 1984-07-23
ATA605779A (en) 1980-10-15
DE2849776C2 (en) 1986-05-15
AT362415B (en) 1981-05-25
DE2849776A1 (en) 1980-05-29
JPS5568995A (en) 1980-05-24

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