PL207688A1 - Podciag stropnicy do hydraulicznej obudowy kroczacej - Google Patents

Podciag stropnicy do hydraulicznej obudowy kroczacej

Info

Publication number
PL207688A1
PL207688A1 PL20768878A PL20768878A PL207688A1 PL 207688 A1 PL207688 A1 PL 207688A1 PL 20768878 A PL20768878 A PL 20768878A PL 20768878 A PL20768878 A PL 20768878A PL 207688 A1 PL207688 A1 PL 207688A1
Authority
PL
Poland
Prior art keywords
housing
tilt rail
trouble
hydraulic
hydraulic trouble
Prior art date
Application number
PL20768878A
Other languages
English (en)
Original Assignee
Hemscheidt Maschf Hermann
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 Hemscheidt Maschf Hermann filed Critical Hemscheidt Maschf Hermann
Publication of PL207688A1 publication Critical patent/PL207688A1/pl

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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • E21D23/066—Pivoted cantilever extensions therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Geology (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Rehabilitation Tools (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Harvesting Machines For Root Crops (AREA)
  • Lining And Supports For Tunnels (AREA)
PL20768878A 1977-06-18 1978-06-16 Podciag stropnicy do hydraulicznej obudowy kroczacej PL207688A1 (pl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2727414A DE2727414C2 (de) 1977-06-18 1977-06-18 Vorpfändeinrichtung für hydraulischen Schreitausbau

Publications (1)

Publication Number Publication Date
PL207688A1 true PL207688A1 (pl) 1979-04-09

Family

ID=6011747

Family Applications (1)

Application Number Title Priority Date Filing Date
PL20768878A PL207688A1 (pl) 1977-06-18 1978-06-16 Podciag stropnicy do hydraulicznej obudowy kroczacej

Country Status (7)

Country Link
US (1) US4155676A (pl)
JP (1) JPS548102A (pl)
DE (1) DE2727414C2 (pl)
FR (1) FR2394668A1 (pl)
GB (1) GB1578513A (pl)
PL (1) PL207688A1 (pl)
ZA (1) ZA782640B (pl)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2819172C2 (de) * 1978-05-02 1985-01-24 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Vorpfändeinrichtung für hydraulischen Schreitausbau
GB2027474B (en) * 1978-07-14 1982-12-01 Coal Ind Mineral mining indstallation
AT360935B (de) * 1979-05-03 1981-02-10 Voest Alpine Ag Ausbaubock
US4266892A (en) * 1979-07-02 1981-05-12 Hermann Hemscheidt Maschinenfabrik Gmbh & Co. Hydraulic roof-support frame
DE3107209A1 (de) * 1981-02-26 1982-09-09 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Kappenanstellvorrichtung
GB2182704B (en) * 1985-11-08 1989-01-18 Dobson Park Ind Mine roof supports
CN112049672A (zh) * 2020-09-14 2020-12-08 三一重型装备有限公司 一种护顶板固定机构及液压支架

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124244B2 (de) * 1971-05-15 1974-10-24 Kloeckner-Werke Ag, 4100 Duisburg Kappenzug für den wandernden Strebausbau

Also Published As

Publication number Publication date
FR2394668B3 (pl) 1981-01-02
DE2727414B1 (de) 1978-11-16
JPS548102A (en) 1979-01-22
US4155676A (en) 1979-05-22
DE2727414C2 (de) 1979-07-12
FR2394668A1 (fr) 1979-01-12
ZA782640B (en) 1979-04-25
GB1578513A (en) 1980-11-05

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