FR2370851A3 - Outil coupant de havage pour l'abattage de charbon - Google Patents

Outil coupant de havage pour l'abattage de charbon

Info

Publication number
FR2370851A3
FR2370851A3 FR7733807A FR7733807A FR2370851A3 FR 2370851 A3 FR2370851 A3 FR 2370851A3 FR 7733807 A FR7733807 A FR 7733807A FR 7733807 A FR7733807 A FR 7733807A FR 2370851 A3 FR2370851 A3 FR 2370851A3
Authority
FR
France
Prior art keywords
cutting
hardened metal
metal bar
coal face
bar used
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.)
Granted
Application number
FR7733807A
Other languages
English (en)
Other versions
FR2370851B3 (fr
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.)
Saarbergwerke AG
Original Assignee
Saarbergwerke 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 Saarbergwerke AG filed Critical Saarbergwerke AG
Publication of FR2370851A3 publication Critical patent/FR2370851A3/fr
Application granted granted Critical
Publication of FR2370851B3 publication Critical patent/FR2370851B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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

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)
  • Earth Drilling (AREA)
  • Milling Processes (AREA)

Abstract

a. Outil coupant de havage pour l'abattage de charbon. b. Outil caractérisé en ce que la surface supérieure 4 destinée à la coupe du dispositif coupant 3 est partagée en surfaces partielles 5, 6, 7, 8 qui forment des angles déterminés avec un plan de référence. c. Outil applicable à des haveuses à charbon ou minerai analogue.
FR7733807A 1976-11-10 1977-11-09 Outil coupant de havage pour l'abattage de charbon Granted FR2370851A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19767635425U DE7635425U1 (de) 1976-11-10 1976-11-10 Schraemmeissel

Publications (2)

Publication Number Publication Date
FR2370851A3 true FR2370851A3 (fr) 1978-06-09
FR2370851B3 FR2370851B3 (fr) 1980-12-05

Family

ID=6671136

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7733807A Granted FR2370851A3 (fr) 1976-11-10 1977-11-09 Outil coupant de havage pour l'abattage de charbon

Country Status (2)

Country Link
DE (1) DE7635425U1 (fr)
FR (1) FR2370851A3 (fr)

Also Published As

Publication number Publication date
FR2370851B3 (fr) 1980-12-05
DE7635425U1 (de) 1977-04-28

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