GB515140A - Improvements in devices for conducting hardness tests - Google Patents
Improvements in devices for conducting hardness testsInfo
- Publication number
- GB515140A GB515140A GB5315/38A GB531538A GB515140A GB 515140 A GB515140 A GB 515140A GB 5315/38 A GB5315/38 A GB 5315/38A GB 531538 A GB531538 A GB 531538A GB 515140 A GB515140 A GB 515140A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- indentor
- specimen
- feb
- conducting
- 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
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)
- Sampling And Sample Adjustment (AREA)
Abstract
515,140. Testing hardness of materials. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 19. 1938, No. 5315. Void. Convention date, Feb. 22, 1937. [Class 106 (ii)] - In impression apparatus a signal device is provided which gives an optical or other signal when the penetrater enters the specimen at the desired pressure. In the example shown, a spring pressed plunger 4 carrying the indentor 6 works in a cylinder 3. Normally an insulated contact 10 on the plunger engages an insulated contact 9 on the cover and causes a lamp 11 in an electric circuit to light. When the apparatus is moved upwards so that the indentor passes through a hole in the table 2 to engage the specimen 1 which is clamped to the table, the light goes out after the pressure of the spring is overcome. A switch is provided in the circuit to cut off the light when the apparatus is out of use.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE515140X | 1937-02-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB515140A true GB515140A (en) | 1939-11-27 |
Family
ID=6548900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5315/38A Expired GB515140A (en) | 1937-02-22 | 1938-02-19 | Improvements in devices for conducting hardness tests |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB515140A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3021707A (en) * | 1959-01-12 | 1962-02-20 | Batist R Haueisen | Coating scratch resistance indicator |
US3178935A (en) * | 1963-03-20 | 1965-04-20 | Refractories Inst | Pressure measuring device |
US5046357A (en) * | 1990-01-19 | 1991-09-10 | Crafts Precision Industries, Inc. | Hardness testing diamond indenter |
CN113218798A (en) * | 2021-03-24 | 2021-08-06 | 万向一二三股份公司 | Device for measuring hardness of soft package battery |
-
1938
- 1938-02-19 GB GB5315/38A patent/GB515140A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3021707A (en) * | 1959-01-12 | 1962-02-20 | Batist R Haueisen | Coating scratch resistance indicator |
US3178935A (en) * | 1963-03-20 | 1965-04-20 | Refractories Inst | Pressure measuring device |
US5046357A (en) * | 1990-01-19 | 1991-09-10 | Crafts Precision Industries, Inc. | Hardness testing diamond indenter |
CN113218798A (en) * | 2021-03-24 | 2021-08-06 | 万向一二三股份公司 | Device for measuring hardness of soft package battery |
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