FR2147340B1 - - Google Patents

Info

Publication number
FR2147340B1
FR2147340B1 FR7227577A FR7227577A FR2147340B1 FR 2147340 B1 FR2147340 B1 FR 2147340B1 FR 7227577 A FR7227577 A FR 7227577A FR 7227577 A FR7227577 A FR 7227577A FR 2147340 B1 FR2147340 B1 FR 2147340B1
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
FR7227577A
Other languages
French (fr)
Other versions
FR2147340A1 (en
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.)
Anglo Transvaal Consolidated Investment Co Ltd
Original Assignee
Anglo Transvaal Consolidated Investment Co 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 Anglo Transvaal Consolidated Investment Co Ltd filed Critical Anglo Transvaal Consolidated Investment Co Ltd
Publication of FR2147340A1 publication Critical patent/FR2147340A1/fr
Application granted granted Critical
Publication of FR2147340B1 publication Critical patent/FR2147340B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21C35/24—Remote control specially adapted for machines for slitting or completely freeing the mineral

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)
  • Percussive Tools And Related Accessories (AREA)
  • Crushing And Pulverization Processes (AREA)
FR7227577A 1971-07-29 1972-07-31 Expired FR2147340B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA715063A ZA715063B (en) 1971-07-29 1971-07-29 Control mechanism for rock cutting equipment

Publications (2)

Publication Number Publication Date
FR2147340A1 FR2147340A1 (en) 1973-03-09
FR2147340B1 true FR2147340B1 (en) 1976-10-29

Family

ID=25563705

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7227577A Expired FR2147340B1 (en) 1971-07-29 1972-07-31

Country Status (10)

Country Link
US (1) US3778106A (en)
AU (1) AU463350B2 (en)
CA (1) CA982254A (en)
CH (1) CH551562A (en)
DE (1) DE2237213A1 (en)
FR (1) FR2147340B1 (en)
GB (1) GB1394168A (en)
NO (1) NO131360C (en)
SE (1) SE397209B (en)
ZA (1) ZA715063B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2503340B2 (en) * 1975-01-28 1978-09-21 Wirth Co Kg Masch Bohr Method and device for drive control of drill heads, in particular for large hole drilling machines
US4070064A (en) * 1976-06-04 1978-01-24 Caterpillar Tractor Co. Cooling system for rock ripper tip
USRE31164E (en) * 1976-06-04 1983-03-01 Caterpillar Tractor Co. Cooling system for rock ripper tip
JPS5632512A (en) * 1979-08-24 1981-04-02 Sumitomo Chem Co Ltd Production of polypropylene having improved stretchability
GB2087948B (en) * 1980-01-11 1983-07-13 Coal Industry Patents Ltd Holder assemblies for sensitised cutter tools on mining machines
US6203113B1 (en) * 1997-12-09 2001-03-20 Nick Wendel Cutting drum with percussive bits

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1283618A (en) * 1917-03-15 1918-11-05 Oliver Oscar App Excavating-machine.
US2218528A (en) * 1937-03-05 1940-10-22 Colson J Endsley Percussion drill

Also Published As

Publication number Publication date
CH551562A (en) 1974-07-15
FR2147340A1 (en) 1973-03-09
NO131360C (en) 1975-05-14
DE2237213A1 (en) 1973-02-08
AU4492972A (en) 1974-02-07
CA982254A (en) 1976-01-20
US3778106A (en) 1973-12-11
AU463350B2 (en) 1975-07-24
NO131360B (en) 1975-02-03
SE397209B (en) 1977-10-24
ZA715063B (en) 1972-09-27
GB1394168A (en) 1975-05-14

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Legal Events

Date Code Title Description
ST Notification of lapse