FR753028A - Device for measuring the hardness of materials - Google Patents

Device for measuring the hardness of materials

Info

Publication number
FR753028A
FR753028A FR753028DA FR753028A FR 753028 A FR753028 A FR 753028A FR 753028D A FR753028D A FR 753028DA FR 753028 A FR753028 A FR 753028A
Authority
FR
France
Prior art keywords
hardness
measuring
materials
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)
Inventor
Paul Craemer
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 FR753028A publication Critical patent/FR753028A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/40—Investigating hardness or rebound hardness
    • G01N3/42—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid
FR753028D 1932-03-30 1933-03-22 Device for measuring the hardness of materials Expired FR753028A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE753028X 1932-03-30

Publications (1)

Publication Number Publication Date
FR753028A true FR753028A (en) 1933-10-05

Family

ID=6655921

Family Applications (1)

Application Number Title Priority Date Filing Date
FR753028D Expired FR753028A (en) 1932-03-30 1933-03-22 Device for measuring the hardness of materials

Country Status (1)

Country Link
FR (1) FR753028A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109253936A (en) * 2018-11-09 2019-01-22 国电锅炉压力容器检验有限公司 A kind of workpiece weld seam device for searching

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109253936A (en) * 2018-11-09 2019-01-22 国电锅炉压力容器检验有限公司 A kind of workpiece weld seam device for searching

Similar Documents

Publication Publication Date Title
FR775639A (en) Device for measuring distances and depths
FR753028A (en) Device for measuring the hardness of materials
FR713640A (en) Apparatus for determining the coefficient of heat conductivity of materials
FR761302A (en) Photophonographic apparatus
FR737087A (en) Device for measuring lengths
FR726300A (en) Finishing device for concrete surfaces or similar materials
FR803226A (en) Material for musical instruments
FR809264A (en) Advanced device for the determination of gravity
FR752063A (en) Device for reboring cylinders
FR739948A (en) Scale for domestic use
FR731259A (en) Signaling device for construction sites and other applications
FR759560A (en) Liquid measuring device
BE400110A (en) High flow device for volumetric measurement of granular materials
FR796871A (en) Level device for measuring the slope of curved tracks
FR733526A (en) Apparatus for measuring the deviation of soundings
CH222842A (en) Apparatus for the determination of humidity in damp material.
FR753206A (en) Photophonographic apparatus
FR42338E (en) Device for sliding tracks
FR735152A (en) Ausculto-percussion device
FR735409A (en) Massage device
FR693485A (en) Device for the marking of air routes
FR740159A (en) Device for debonding barrels
FR42979E (en) Device for debonding barrels
FR738563A (en) Unsinkable device for surface navigation
FR735541A (en) Apparatus for automatically measuring the volume of grains and granular materials