GB734330A - Improvements in or relating to apparatus for the manufacture of foamed latex - Google Patents
Improvements in or relating to apparatus for the manufacture of foamed latexInfo
- Publication number
- GB734330A GB734330A GB2071053A GB2071053A GB734330A GB 734330 A GB734330 A GB 734330A GB 2071053 A GB2071053 A GB 2071053A GB 2071053 A GB2071053 A GB 2071053A GB 734330 A GB734330 A GB 734330A
- Authority
- GB
- United Kingdom
- Prior art keywords
- latex
- tank
- air
- rate
- level
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
734,330. Mixing-appliances. LINTAFOAM INDUSTRIES, Ltd. July 25, 1953, No. 20710/53. Addition to 694,284. Class 86. The apparatus of the parent Specification for the manufacture of foamed latex, is modified in that the proportion of latex to air is determined ' by the level of latex maintained in a latex supply tank 23, the proportion of latex to air increasing as the level of latex in the tank 23 is raised. The rate of delivery of foamed latex is determined by the rate at which air is supplied to the foaming apparatus. The means for regulating the level of latex in the tank 23 comprises a vertically adjustable electrode 33, an electronic tube switch device 32 and a solenoid valve 30, 31 which controls the air supply of a pneumatically operated valve 25 in a flexible latex supply pipe 24. The latex flows from the bottom of the tank 23, along a pipe 17 and into the lower end of the conical shell 16 of the foaming apparatus, from the upper end of which the foamed latex is discharged. The air is supplied through a control valve 22 and gauge 21 and enters the foaming apparatus through a pipe 18. An increase in the rate of air supply reduces the back pressure exerted by the latex in the foaming apparatus upon the latex in the tank 23, causing the level of latex in the tank 23 to fall, thus correspondingly increasing the rate at which latex is supplied through the pipe 24, and hence correspondingly increasing the rate of delivery of foamed latex having the proportions determined by the setting of the electrode 33.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2071053A GB734330A (en) | 1953-07-25 | 1953-07-25 | Improvements in or relating to apparatus for the manufacture of foamed latex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2071053A GB734330A (en) | 1953-07-25 | 1953-07-25 | Improvements in or relating to apparatus for the manufacture of foamed latex |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB734330A true GB734330A (en) | 1955-07-27 |
Family
ID=10150388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2071053A Expired GB734330A (en) | 1953-07-25 | 1953-07-25 | Improvements in or relating to apparatus for the manufacture of foamed latex |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB734330A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3744766A (en) * | 1971-10-22 | 1973-07-10 | Damon Corp | Pneumatically operated mixing device |
-
1953
- 1953-07-25 GB GB2071053A patent/GB734330A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3744766A (en) * | 1971-10-22 | 1973-07-10 | Damon Corp | Pneumatically operated mixing device |
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