FR1139391A - Improvements to cutting machines and the like of the chain type - Google Patents

Improvements to cutting machines and the like of the chain type

Info

Publication number
FR1139391A
FR1139391A FR1139391DA FR1139391A FR 1139391 A FR1139391 A FR 1139391A FR 1139391D A FR1139391D A FR 1139391DA FR 1139391 A FR1139391 A FR 1139391A
Authority
FR
France
Prior art keywords
chain type
cutting machines
machines
cutting
chain
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
French (fr)
Inventor
David Jackson
Raymond Hird
John Eric Mackay
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 FR1139391A publication Critical patent/FR1139391A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
    • E21C31/10—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for slewing parts of the machines
FR1139391D 1955-11-10 1955-11-10 Improvements to cutting machines and the like of the chain type Expired FR1139391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1139391T 1955-11-10

Publications (1)

Publication Number Publication Date
FR1139391A true FR1139391A (en) 1957-06-28

Family

ID=9641703

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1139391D Expired FR1139391A (en) 1955-11-10 1955-11-10 Improvements to cutting machines and the like of the chain type

Country Status (1)

Country Link
FR (1) FR1139391A (en)

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