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GB1234602A - - Google Patents

Info

Publication number
GB1234602A
GB1234602A GB1234602DA GB1234602A GB 1234602 A GB1234602 A GB 1234602A GB 1234602D A GB1234602D A GB 1234602DA GB 1234602 A GB1234602 A GB 1234602A
Authority
GB
United Kingdom
Prior art keywords
supports
picks
drilling
june
cutting
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
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
Publication of GB1234602A publication Critical patent/GB1234602A/en
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)

Abstract

1,234,602. Rotary cutting tools. SOC. DES POUDRES METALLIQUES ET DES ALLEAGES SPECIAUX UGINE-CARBONE. 6 June, 1968 [6 June, 1967], No. 26987/68. Heading E1F. A drilling and cutting-tool comprises a drum having a body of frustoconical shape with a drilling head 2 at its tip and drilling and cutting picks 4 mounted on supports 5 welded to the drum body along a helical line. The supports 5 may form at least part of a helical rib 6. The picks have frusto-conical shaped shafts fitting into corresponding sockets in the supports and have hard metal tips. Water may be ejected from passages in the picks.
GB1234602D 1967-06-06 1968-06-06 Expired GB1234602A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1234602A true GB1234602A (en) 1971-06-09

Family

ID=7530055

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1234602D Expired GB1234602A (en) 1967-06-06 1968-06-06

Country Status (2)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0452058A2 (en) * 1990-04-12 1991-10-16 Smith International, Inc. Insert attack angle for roller cone rock bits

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2034369A (en) * 1978-08-21 1980-06-04 Westminster Dredging Cutter head for suction dredger
CN112145173B (en) * 2020-09-27 2022-05-20 山东黄金矿业(莱州)有限公司三山岛金矿 Boom-type roadheader cutting head suitable for hard rock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0452058A2 (en) * 1990-04-12 1991-10-16 Smith International, Inc. Insert attack angle for roller cone rock bits
EP0452058A3 (en) * 1990-04-12 1992-07-01 Smith International, Inc. Insert attack angle for roller cone rock bits

Also Published As

Publication number Publication date
FR1568146A (en) 1969-05-23

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Legal Events

Date Code Title Description
PS Patent sealed