GB343557A - Improvements in moulded articles and methods of forming the same - Google Patents
Improvements in moulded articles and methods of forming the sameInfo
- Publication number
- GB343557A GB343557A GB35475/29A GB3547529A GB343557A GB 343557 A GB343557 A GB 343557A GB 35475/29 A GB35475/29 A GB 35475/29A GB 3547529 A GB3547529 A GB 3547529A GB 343557 A GB343557 A GB 343557A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rib
- article
- mould
- moulding
- fin
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/005—Moulds or cores; Details thereof or accessories therefor characterised by the location of the parting line of the mould parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
343,557. Moulding telephone receivers &c. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.-(Assignees of Zelenka, J. J. ; 535, North Ashland Avenue, La Grange, Illinois, U.S.A.) Nov. 20, 1929, No. 35475. Convention date, Jan. 2. [Class 87 (ii).] Plastic compositions, e.g. phenol plastic, are pressed to form articles in moulds having recesses to form a fin at the greatest lateral dimension of the article, the fin being subsequently removed so that finishing operations may be confined to a small area. As applied to the manufacture of a telephone hand set, phenol plastic is moulded to form the handle 12, the receiver 17 and the transmitter 24 in separate parts. The mould is mounted in a holder 11 provided with passages 16 for the circulation of heating or cooling fluid. Similar passages are provided in the upper mould member 10. The meeting face of the mould parts 10, 12 is shaped to produce a rim 14 and a rib 19. After moulding in polished dies, while heated and then maintaining the pressure during the cooling operation, the article is removed in a highly polished condition. The rib 19 is then removed as by grinding, and owing to the location of the rib at the greatest lateral dimension of the article the grinding does not mar any of the finished surfaces.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US343557XA | 1929-01-02 | 1929-01-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB343557A true GB343557A (en) | 1931-02-20 |
Family
ID=21875907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35475/29A Expired GB343557A (en) | 1929-01-02 | 1929-11-20 | Improvements in moulded articles and methods of forming the same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB343557A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2494903A1 (en) * | 1980-11-26 | 1982-05-28 | Sony Corp | FLAT CATHODIC TUBE |
| US20170362767A1 (en) * | 2016-06-15 | 2017-12-21 | Monika Norkova | Modular holder of textile fabrics |
-
1929
- 1929-11-20 GB GB35475/29A patent/GB343557A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2494903A1 (en) * | 1980-11-26 | 1982-05-28 | Sony Corp | FLAT CATHODIC TUBE |
| US20170362767A1 (en) * | 2016-06-15 | 2017-12-21 | Monika Norkova | Modular holder of textile fabrics |
| US10837138B2 (en) * | 2016-06-15 | 2020-11-17 | Monika Norkova | Modular holder of textile fabrics |
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