FR1056219A - Method for measuring the hardness of carbon and apparatus for carrying out this method - Google Patents

Method for measuring the hardness of carbon and apparatus for carrying out this method

Info

Publication number
FR1056219A
FR1056219A FR1056219DA FR1056219A FR 1056219 A FR1056219 A FR 1056219A FR 1056219D A FR1056219D A FR 1056219DA FR 1056219 A FR1056219 A FR 1056219A
Authority
FR
France
Prior art keywords
hardness
measuring
carbon
carrying
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)
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.)
KOHLENBERGBAU LEITUNG DEUTSCHE
Original Assignee
KOHLENBERGBAU LEITUNG DEUTSCHE
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 KOHLENBERGBAU LEITUNG DEUTSCHE filed Critical KOHLENBERGBAU LEITUNG DEUTSCHE
Application granted granted Critical
Publication of FR1056219A publication Critical patent/FR1056219A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C39/00—Devices for testing in situ the hardness or other properties of minerals, e.g. for giving information as to the selection of suitable mining tools

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)
FR1056219D 1951-01-18 1952-01-16 Method for measuring the hardness of carbon and apparatus for carrying out this method Expired FR1056219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1056219X 1951-01-18

Publications (1)

Publication Number Publication Date
FR1056219A true FR1056219A (en) 1954-02-25

Family

ID=7718004

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1056219D Expired FR1056219A (en) 1951-01-18 1952-01-16 Method for measuring the hardness of carbon and apparatus for carrying out this method

Country Status (1)

Country Link
FR (1) FR1056219A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2898761A (en) * 1954-01-20 1959-08-11 Hast Nils Bernhard Ascertaining stresses and deformations in solid loaded materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2898761A (en) * 1954-01-20 1959-08-11 Hast Nils Bernhard Ascertaining stresses and deformations in solid loaded materials

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