GB1552989A - Cutter bit assemblies for use with a coal plough - Google Patents

Cutter bit assemblies for use with a coal plough

Info

Publication number
GB1552989A
GB1552989A GB35356/76A GB3535676A GB1552989A GB 1552989 A GB1552989 A GB 1552989A GB 35356/76 A GB35356/76 A GB 35356/76A GB 3535676 A GB3535676 A GB 3535676A GB 1552989 A GB1552989 A GB 1552989A
Authority
GB
United Kingdom
Prior art keywords
cutter bit
coal plough
bit assemblies
assemblies
plough
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
GB35356/76A
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 GB1552989A publication Critical patent/GB1552989A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
    • E21C27/44—Planing knives
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
    • E21C35/1837—Mining picks; Holders therefor with inserts or layers of wear-resisting material characterised by the shape
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders
    • E21C35/193—Means for fixing picks or holders using bolts as main fixing elements
    • E21C35/1936—Means for fixing picks or holders using bolts as main fixing elements the picks having a square- or rectangular-section shank

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Knives (AREA)
  • Harvester Elements (AREA)
GB35356/76A 1975-08-30 1976-08-25 Cutter bit assemblies for use with a coal plough Expired GB1552989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2538647A DE2538647C2 (en) 1975-08-30 1975-08-30 Two-part chisel for coal planer

Publications (1)

Publication Number Publication Date
GB1552989A true GB1552989A (en) 1979-09-19

Family

ID=5955213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35356/76A Expired GB1552989A (en) 1975-08-30 1976-08-25 Cutter bit assemblies for use with a coal plough

Country Status (5)

Country Link
BE (1) BE845653A (en)
CS (1) CS199623B2 (en)
DE (1) DE2538647C2 (en)
GB (1) GB1552989A (en)
PL (1) PL106080B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4819990A (en) * 1986-11-08 1989-04-11 Gewerkschaft Eisenhutte Westfallia Gmbh Floor cutters for mineral winning ploughs
EP0737779A1 (en) * 1995-04-12 1996-10-16 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Conveyor and endless chain assembly for transporting railway track ballast

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901596A1 (en) * 1989-01-20 1990-07-26 Langerbein Scharf Gmbh & Co Kg Pick arrangement for a coal plough

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4819990A (en) * 1986-11-08 1989-04-11 Gewerkschaft Eisenhutte Westfallia Gmbh Floor cutters for mineral winning ploughs
EP0737779A1 (en) * 1995-04-12 1996-10-16 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Conveyor and endless chain assembly for transporting railway track ballast

Also Published As

Publication number Publication date
PL106080B1 (en) 1979-11-30
DE2538647A1 (en) 1977-03-10
DE2538647C2 (en) 1983-01-05
BE845653A (en) 1976-12-16
CS199623B2 (en) 1980-07-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee