GB677509A - Method of forming articles by dipping - Google Patents
Method of forming articles by dippingInfo
- Publication number
- GB677509A GB677509A GB5451/51A GB545151A GB677509A GB 677509 A GB677509 A GB 677509A GB 5451/51 A GB5451/51 A GB 5451/51A GB 545151 A GB545151 A GB 545151A GB 677509 A GB677509 A GB 677509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- article
- former
- level
- thin
- dipped
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/14—Dipping a core
-
- 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
- B29K2021/00—Use of unspecified rubbers as moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
677,509. Moulding by dipping. METALLGES. AKT.-GES. March 6, 1951 [May 30, 1950], No. 5451/51. Class 87(ii) That part of the dipped article that is to be rolled up to form a rim has a film thickness which increases stepwise or nearly continuously from as thin an outer zone as possible through a comparatively still moderately thin intermediate zone up to a final comparatively thick film thickness. As shown, in making the article a former F is first dipped into a solution of coagulant up to the level A, then dipped into aqueous rubber dispersion up to level B (whereby a very thin skin is formed on the non-coagulant-coated part AB), then withdrawn from the dispersion until it is at the level C, where it is allowed to dwell to build up the article thickness on the part CE. The former is then lowered until the level is at D, and then withdrawn. The result is a thin portion AB, a not-so-thin portion AD, a thicker portion DC and the thick body portion CE. The former with the article thereon is then heated to dry the article, the rim is rolled up, and the article again heated. Further heating to dry may be effected after removal of the article from the former. The material used may be rubber, gutta percha, balata, polymers of chloroprene or butadiene or natural or synthetic resins.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE677509X | 1950-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB677509A true GB677509A (en) | 1952-08-13 |
Family
ID=6594119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5451/51A Expired GB677509A (en) | 1950-05-30 | 1951-03-06 | Method of forming articles by dipping |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB677509A (en) |
-
1951
- 1951-03-06 GB GB5451/51A patent/GB677509A/en not_active Expired
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