GB771105A - Method and apparatus for measuring the hardness of non-metallic materials - Google Patents

Method and apparatus for measuring the hardness of non-metallic materials

Info

Publication number
GB771105A
GB771105A GB28905/55A GB2890555A GB771105A GB 771105 A GB771105 A GB 771105A GB 28905/55 A GB28905/55 A GB 28905/55A GB 2890555 A GB2890555 A GB 2890555A GB 771105 A GB771105 A GB 771105A
Authority
GB
United Kingdom
Prior art keywords
hardness
measuring
penetrators
oct
lever
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
GB28905/55A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB771105A publication Critical patent/GB771105A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

771,105. Measuring hardness. ERNST, H. Oct. 11, 1955 [Oct. 12, 1954], No. 28905/55. Class 106 (2). Hardness is measured by determining the difference in penetration into the test piece of two simultaneously and equally-loaded penetrators having different shapes or sizes. The test piece 15 is mounted on an adjustable support 2 and is subjected by the two penetrators 13, 14, comprising hardened balls of different diameters, to a load on the table 7 via rods 6, 11 and 12 and lever 10. The different penetrations causes the lever 10 to rock to give an indication on a dial gauge 8 supported from the rod 6 by an arm 9. In another embodiment spring loading is used.
GB28905/55A 1954-10-12 1955-10-11 Method and apparatus for measuring the hardness of non-metallic materials Expired GB771105A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT771105X 1954-10-12

Publications (1)

Publication Number Publication Date
GB771105A true GB771105A (en) 1957-03-27

Family

ID=11316128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28905/55A Expired GB771105A (en) 1954-10-12 1955-10-11 Method and apparatus for measuring the hardness of non-metallic materials

Country Status (1)

Country Link
GB (1) GB771105A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103558084A (en) * 2013-11-06 2014-02-05 中国人民解放军总参谋部工程兵第四设计研究院 Portable type adhesive tape compression counter force detection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103558084A (en) * 2013-11-06 2014-02-05 中国人民解放军总参谋部工程兵第四设计研究院 Portable type adhesive tape compression counter force detection device
CN103558084B (en) * 2013-11-06 2015-08-19 中国人民解放军总参谋部工程兵第四设计研究院 Portable type adhesive tape compression counter force detection device

Similar Documents

Publication Publication Date Title
GB702578A (en) Improvements in methods and apparatus for testing the liquid content of substances
GB1103428A (en) Improvements in or relating to the assessment of roughness
ES407891A1 (en) Hardness testing
GB1096518A (en) Linear dimension gage
GB815933A (en) Transducer assembly
GB1159952A (en) Process and Apparatus for Testing Foundry Sand
GB519551A (en) Improvements in or relating to a device for use in measuring internal dimensions
US2333313A (en) Apparatus for testing the strength of eggshells
GB833510A (en) Improvements in or relating to devices for testing metal specimens under bending stress
GB1021211A (en) Bore concentricity gauge
SU120026A1 (en) Rubber Tester
GB1087109A (en) A device for checking instrument accuracy and wear
GB760828A (en) Improvements in or relating to hardness testing instruments
GB1382053A (en) Dimension checking instrument
GB728625A (en) Improvements in extensometers
GB915226A (en) Improvements in contour checking devices
JPS5666702A (en) Measuring device of extent of eccentricity for fine hole drilled at center of end face of cylindrical work
GB838539A (en) A force measuring apparatus
GB591769A (en) Improvements in or relating to twist drill gauging devices
GB703193A (en) Improvements in or relating to hardness testing machines
GB926672A (en) Device for the measurement of the distance between the centres of two circular holes independently of the tolerances of the hole diameter
GB1278774A (en) Improvements in or relating to fatigue testing
GB714164A (en) Improvements in or relating to portable hardness testing instruments
GB474333A (en) Apparatus for measuring piston ring wall pressures
GB839792A (en) Method and apparatus for measuring uni-or tri-axial inherent stresses in plate-like specimens