GB1096169A - Hardness testing device - Google Patents
Hardness testing deviceInfo
- Publication number
- GB1096169A GB1096169A GB5072465A GB5072465A GB1096169A GB 1096169 A GB1096169 A GB 1096169A GB 5072465 A GB5072465 A GB 5072465A GB 5072465 A GB5072465 A GB 5072465A GB 1096169 A GB1096169 A GB 1096169A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- indenter
- wall
- pump
- weight
- 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)
- Reciprocating Pumps (AREA)
Abstract
1, 096, 169. Hardness tests. ERNST LEITZ G.m.b.H. Nov.30, 1965 [Feb.23, 1965], No. 50724/65. Heading G1S. A hardness testing device comprises a pump 30 driven by an electric motor 31 and arranged to discharge fluid into a pressure chamber 16 communicating through a duct 15 with a pressure response actuating device 2 for an indenter 1, the pressure chamber 16 having a flexible wall 17, a weight 24 for loading the wall 17 and a switch 21 responsive to the deflection of the wall operable to control energization of the motor 31. The indenter 1 is retained in the rest position by a permanent magnet 9. In use pressure is revised in chambers 3, 16 to exert a pressure on the indenter 1 by saving the weight 24 to close switch 21' and closing valve 29 to produce a pressure in pump 30. After testing the valve 29 is opened to effect return of the indenter 1.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL0039042 | 1965-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1096169A true GB1096169A (en) | 1967-12-20 |
Family
ID=7268510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5072465A Expired GB1096169A (en) | 1965-02-23 | 1965-11-30 | Hardness testing device |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT261259B (en) |
FR (1) | FR1462125A (en) |
GB (1) | GB1096169A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3763697A (en) * | 1970-04-15 | 1973-10-09 | Sturm Stress Inc | Method and apparatus for determining stress |
US4402228A (en) * | 1981-06-04 | 1983-09-06 | General Battery Corporation | Apparatus and method for testing the hardness of battery components |
GB2211949A (en) * | 1987-11-05 | 1989-07-12 | Helmut Fischer Gmbh & Co | A hardness measuring instrument |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4059990A (en) * | 1976-08-02 | 1977-11-29 | Federal-Mogul Corporation | Materials hardness testing device |
-
1965
- 1965-11-30 GB GB5072465A patent/GB1096169A/en not_active Expired
- 1965-12-30 FR FR44339A patent/FR1462125A/en not_active Expired
-
1966
- 1966-02-18 AT AT154466A patent/AT261259B/en active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3763697A (en) * | 1970-04-15 | 1973-10-09 | Sturm Stress Inc | Method and apparatus for determining stress |
US4402228A (en) * | 1981-06-04 | 1983-09-06 | General Battery Corporation | Apparatus and method for testing the hardness of battery components |
GB2211949A (en) * | 1987-11-05 | 1989-07-12 | Helmut Fischer Gmbh & Co | A hardness measuring instrument |
GB2211949B (en) * | 1987-11-05 | 1992-04-22 | Helmut Fischer Gmbh & Co | Device for a hardness measuring instrument |
Also Published As
Publication number | Publication date |
---|---|
AT261259B (en) | 1968-04-10 |
FR1462125A (en) | 1966-12-09 |
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