FR1228288A - Pic de havage à mise rapportée - Google Patents

Pic de havage à mise rapportée

Info

Publication number
FR1228288A
FR1228288A FR789080A FR789080A FR1228288A FR 1228288 A FR1228288 A FR 1228288A FR 789080 A FR789080 A FR 789080A FR 789080 A FR789080 A FR 789080A FR 1228288 A FR1228288 A FR 1228288A
Authority
FR
France
Prior art keywords
peak
cut
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
FR789080A
Other languages
English (en)
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.)
Charbonnages de France CDF
Original Assignee
Charbonnages de France CDF
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 Charbonnages de France CDF filed Critical Charbonnages de France CDF
Priority to FR789080A priority Critical patent/FR1228288A/fr
Application granted granted Critical
Publication of FR1228288A publication Critical patent/FR1228288A/fr
Expired 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
    • E21C35/1831—Fixing methods or devices
    • 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)
FR789080A 1959-03-11 1959-03-11 Pic de havage à mise rapportée Expired FR1228288A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR789080A FR1228288A (fr) 1959-03-11 1959-03-11 Pic de havage à mise rapportée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR789080A FR1228288A (fr) 1959-03-11 1959-03-11 Pic de havage à mise rapportée

Publications (1)

Publication Number Publication Date
FR1228288A true FR1228288A (fr) 1960-08-29

Family

ID=8712343

Family Applications (1)

Application Number Title Priority Date Filing Date
FR789080A Expired FR1228288A (fr) 1959-03-11 1959-03-11 Pic de havage à mise rapportée

Country Status (1)

Country Link
FR (1) FR1228288A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570121A1 (fr) * 1984-09-11 1986-03-14 Gewerk Eisenhuette Westfalia Couteau de sole pour rabot a charbon
EP0468214A1 (fr) * 1990-07-25 1992-01-29 General Electric Company Plaquette de coupe utilisant des comprimés superabrasives

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570121A1 (fr) * 1984-09-11 1986-03-14 Gewerk Eisenhuette Westfalia Couteau de sole pour rabot a charbon
EP0468214A1 (fr) * 1990-07-25 1992-01-29 General Electric Company Plaquette de coupe utilisant des comprimés superabrasives

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