JPS5022485B1 - - Google Patents

Info

Publication number
JPS5022485B1
JPS5022485B1 JP6960033A JP6003369A JPS5022485B1 JP S5022485 B1 JPS5022485 B1 JP S5022485B1 JP 6960033 A JP6960033 A JP 6960033A JP 6003369 A JP6003369 A JP 6003369A JP S5022485 B1 JPS5022485 B1 JP S5022485B1
Authority
JP
Japan
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.)
Pending
Application number
JP6960033A
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 JPS5022485B1 publication Critical patent/JPS5022485B1/ja
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C25/00Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/16Machines slitting solely by one or more rotating saws, cutting discs, or wheels

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)
  • Earth Drilling (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
JP6960033A 1968-08-02 1969-07-31 Pending JPS5022485B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA684996 1968-08-02

Publications (1)

Publication Number Publication Date
JPS5022485B1 true JPS5022485B1 (ja) 1975-07-31

Family

ID=25561224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6960033A Pending JPS5022485B1 (ja) 1968-08-02 1969-07-31

Country Status (6)

Country Link
US (1) US3645579A (ja)
JP (1) JPS5022485B1 (ja)
BE (1) BE735845A (ja)
DE (1) DE1938619A1 (ja)
FR (1) FR2017956A1 (ja)
GB (1) GB1264645A (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2159351C3 (de) * 1971-11-30 1981-02-26 Salzgitter Maschinen Und Anlagen Ag, 3320 Salzgitter Bohrgerät mit wenigstens einer mit einem Unwuchtvibrator versehenen Schneidrolle
US4371210A (en) * 1978-04-10 1983-02-01 Kennametal Inc. Freely rotatable pick bit holder on rotary driven member and method
RU2168018C1 (ru) * 1999-12-02 2001-05-27 Институт горного дела - научно-исследовательское учреждение СО РАН Устройство для образования направленных трещин в скважинах

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1276686A (en) * 1917-06-20 1918-08-20 Joseph Petermann Apparatus for cutting and breaking asphalt or concrete.
US1404835A (en) * 1920-01-14 1922-01-31 John M Christine Means for cutting kerfs in mining
US2024764A (en) * 1932-12-03 1935-12-17 Frank E Hill Road surfacing machine
US2184068A (en) * 1939-03-24 1939-12-19 John A Zublin Turbine drill bit
US2606012A (en) * 1949-04-09 1952-08-05 Meyer John Henry Floor chipping machine
US2664281A (en) * 1949-08-27 1953-12-29 Tennant Co G H Machine for cutting, cleaning, grooving, and treating surfaces
US2639896A (en) * 1950-02-14 1953-05-26 Daniel H Francis Rotary rock drilling bit
US2894727A (en) * 1955-05-17 1959-07-14 Homer I Henderson Drilling bit
US3041055A (en) * 1959-07-13 1962-06-26 Goodman Mfg Co Rotatable cutter head

Also Published As

Publication number Publication date
US3645579A (en) 1972-02-29
GB1264645A (ja) 1972-02-23
DE1938619A1 (de) 1970-09-03
FR2017956A1 (ja) 1970-05-29
BE735845A (ja) 1970-01-09

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