FR1170351A - Porte-pic pour les haveurs à chaîne - Google Patents

Porte-pic pour les haveurs à chaîne

Info

Publication number
FR1170351A
FR1170351A FR1170351DA FR1170351A FR 1170351 A FR1170351 A FR 1170351A FR 1170351D A FR1170351D A FR 1170351DA FR 1170351 A FR1170351 A FR 1170351A
Authority
FR
France
Prior art keywords
pick holder
chain cutters
cutters
chain
pick
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
Other languages
English (en)
Inventor
George Jerrit
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.)
Mavor and Coulson Ltd
Original Assignee
Mavor and Coulson Ltd
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 Mavor and Coulson Ltd filed Critical Mavor and Coulson Ltd
Application granted granted Critical
Publication of FR1170351A publication Critical patent/FR1170351A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
FR1170351D 1956-03-28 1957-03-28 Porte-pic pour les haveurs à chaîne Expired FR1170351A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1170351X 1956-03-28

Publications (1)

Publication Number Publication Date
FR1170351A true FR1170351A (fr) 1959-01-14

Family

ID=10879387

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1170351D Expired FR1170351A (fr) 1956-03-28 1957-03-28 Porte-pic pour les haveurs à chaîne

Country Status (1)

Country Link
FR (1) FR1170351A (fr)

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