GB1334455A - Measuring device - Google Patents
Measuring deviceInfo
- Publication number
- GB1334455A GB1334455A GB1334455DA GB1334455A GB 1334455 A GB1334455 A GB 1334455A GB 1334455D A GB1334455D A GB 1334455DA GB 1334455 A GB1334455 A GB 1334455A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sample
- voltage
- thermocouple
- relay
- reduced
- 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
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
- G01N25/04—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of melting point; of freezing point; of softening point
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 Or Analyzing Materials Using Thermal Means (AREA)
Abstract
1334455 Measuring plastics properties electrically MONSANTO CHEMICALS Ltd 26 May 1972 [17 June 1971] 28505/71 Heading G1N Apparatus for determining the softening point of a thermoplastics sample, i.e. the temperature at which the sample under a given stress deforms by a predetermined amount, comprises a thermocouple t/c which measures the temperature of an oil bath in which the sample is heated, voltage recording means, for example a pen recorder, recording the output of the thermocouple, and a dial gauge G1 sensing the deformation of the sample and provided with electrical contacts which are closed at the desired deformation to operate a relay R1 causing the voltage sensed by the recording means to be reduced to a lower value by a voltage divider D1. As shown, three samples may be sensed cyclically by a motor M driving gauged switches S1, S2. As soon as the appropriate gauge G1, G2, G3, operates its relay the voltage output will be reduced to an amount set by the appropriate divider (e. g. ¢, 1/3, or “) and hence identifying the sample. The graph recorded, Fig. 2 (not shown) indicates the thermocouple outputs at which voltage reductions arise, these being indicative of the softening points. Audio or visible warnings are also envisaged.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2850571 | 1972-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1334455A true GB1334455A (en) | 1973-10-17 |
Family
ID=10276697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1334455D Expired GB1334455A (en) | 1972-05-26 | 1972-05-26 | Measuring device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1334455A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4711587A (en) * | 1985-07-24 | 1987-12-08 | Cselt-Centro Studi E Laboratori Telecomunicazioni S.P.A. | Method of and apparatus for measuring the softening point of a vitreous specimen |
-
1972
- 1972-05-26 GB GB1334455D patent/GB1334455A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4711587A (en) * | 1985-07-24 | 1987-12-08 | Cselt-Centro Studi E Laboratori Telecomunicazioni S.P.A. | Method of and apparatus for measuring the softening point of a vitreous specimen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |