FR1568146A - - Google Patents

Info

Publication number
FR1568146A
FR1568146A FR1568146DA FR1568146A FR 1568146 A FR1568146 A FR 1568146A FR 1568146D A FR1568146D A FR 1568146DA FR 1568146 A FR1568146 A FR 1568146A
Authority
FR
France
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)
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 filed Critical
Application granted granted Critical
Publication of FR1568146A publication Critical patent/FR1568146A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
    • E21C25/10—Rods; Drums
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/02—Machines slitting solely by one or more percussive tools moved through the seam
    • E21C25/04—Cutting crowns or other tools
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
    • E21D9/104—Cutting tool fixtures

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
FR1568146D 1967-06-06 1968-02-27 Expired FR1568146A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0110211 1967-06-06

Publications (1)

Publication Number Publication Date
FR1568146A true FR1568146A (enrdf_load_stackoverflow) 1969-05-23

Family

ID=7530055

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1568146D Expired FR1568146A (enrdf_load_stackoverflow) 1967-06-06 1968-02-27

Country Status (2)

Country Link
FR (1) FR1568146A (enrdf_load_stackoverflow)
GB (1) GB1234602A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008534A1 (en) * 1978-08-21 1980-03-05 Westminster Dredging Company Limited Cutter head for a suction dredger
CN112145173A (zh) * 2020-09-27 2020-12-29 山东黄金矿业(莱州)有限公司三山岛金矿 一种适用于硬岩的悬臂式掘进机截割头

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5027913A (en) * 1990-04-12 1991-07-02 Smith International, Inc. Insert attack angle for roller cone rock bits

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008534A1 (en) * 1978-08-21 1980-03-05 Westminster Dredging Company Limited Cutter head for a suction dredger
CN112145173A (zh) * 2020-09-27 2020-12-29 山东黄金矿业(莱州)有限公司三山岛金矿 一种适用于硬岩的悬臂式掘进机截割头
CN112145173B (zh) * 2020-09-27 2022-05-20 山东黄金矿业(莱州)有限公司三山岛金矿 一种适用于硬岩的悬臂式掘进机截割头

Also Published As

Publication number Publication date
GB1234602A (enrdf_load_stackoverflow) 1971-06-09

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Legal Events

Date Code Title Description
ST Notification of lapse