GB1291497A - Improvements in means for determining the density of a mould wall - Google Patents
Improvements in means for determining the density of a mould wallInfo
- Publication number
- GB1291497A GB1291497A GB5733469A GB5733469A GB1291497A GB 1291497 A GB1291497 A GB 1291497A GB 5733469 A GB5733469 A GB 5733469A GB 5733469 A GB5733469 A GB 5733469A GB 1291497 A GB1291497 A GB 1291497A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- mould
- tube
- chamber
- jar
- 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
- 239000011148 porous material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Instructional Devices (AREA)
Abstract
1291497 Measuring density or porosity of moulds IRODAGEPIPARI ES FINOMMECHANIKAI VALLALAT 24 Nov 1969 [23 Nov 1968] 57334/69 Heading G1S A body 1 surrounds an air chamber 5a having an exterior water jacket 5b in which a bell jar 7 is positioned to compress air within the chamber 5a. Air from this chamber is supplied via a tube 15a and a tube 15 to a testing head 16 which is pressed on to the mould to be tested as shown, so that air passing through the pores of the mould produces a pressure variation in a tube 17 connected to pressure gauges 19, 23 which indicate the density of the mould. The bell jar has a handle 3 which when lifted raises a weighted shaft 10 Fig. 2, and lifts a valve 11 in the top of the jar to allow air to fill the jar. In Fig. 3 the test head 16 is fed by air through tube 15 via one of two differently sized rotatably selected holes a, b and the ring 32 is pressed into contact with the mould by a spring 31. The air-pressure in chamber 52 varies according to the pressure drop or air escape through the mould and the gauges 19, 23 register accordingly.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HUIO010149 | 1968-11-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1291497A true GB1291497A (en) | 1972-10-04 |
Family
ID=10997586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5733469A Expired GB1291497A (en) | 1968-11-23 | 1969-11-24 | Improvements in means for determining the density of a mould wall |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH509589A (en) |
| GB (1) | GB1291497A (en) |
| SU (1) | SU372849A3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2183851A (en) * | 1985-12-02 | 1987-06-10 | Carrier Corp | A method and apparatus for measuring the pore size for manufacturing enhanced tubes |
-
1969
- 1969-11-11 CH CH1686069A patent/CH509589A/en not_active IP Right Cessation
- 1969-11-21 SU SU1378284A patent/SU372849A3/ru active
- 1969-11-24 GB GB5733469A patent/GB1291497A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2183851A (en) * | 1985-12-02 | 1987-06-10 | Carrier Corp | A method and apparatus for measuring the pore size for manufacturing enhanced tubes |
| GB2183851B (en) * | 1985-12-02 | 1990-05-30 | Carrier Corp | A method and apparatus for measuring the pore size of enchanced heat transfer tubes |
Also Published As
| Publication number | Publication date |
|---|---|
| CH509589A (en) | 1971-06-30 |
| SU372849A3 (en) | 1973-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |