GB449301A - Improved process for the production of hollow bodies from cellulose products and other plastic masses - Google Patents
Improved process for the production of hollow bodies from cellulose products and other plastic massesInfo
- Publication number
- GB449301A GB449301A GB1474/36A GB147436A GB449301A GB 449301 A GB449301 A GB 449301A GB 1474/36 A GB1474/36 A GB 1474/36A GB 147436 A GB147436 A GB 147436A GB 449301 A GB449301 A GB 449301A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- skin
- plastic material
- production
- improved process
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0003—Discharging moulded articles from the mould
- B29C37/0017—Discharging moulded articles from the mould by stripping articles from mould cores
-
- 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
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/46—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles using fluid pressure
-
- 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
- B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
449,301. Moulding hollow articles. BRATRING, K., 26, Bussestrasse Luckenwalde, near Berlin. Jan. 16, 1936, No. 1474. Convention date, Jan. 16, 1935. [Class 87 (ii)] Hollow articles are made by applying acetyl - cellulose or other plastic material by dipping, spraying, or pouring, to a core A over which is stretched a rubber or other skin C held by a band D in a groove or neck in the core. When the plastic material is set or dry, the band D is removed, and air is introduced between the core and the skin to remove the moulded article L together with the skin, as shown in Fig. 3. The core may be smoothed by applying talcum, lacquer, or glycerine. Preformed hollow articles while still moist and flexible may serve as the plastic material from which the finished articles are produced.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE449301X | 1935-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB449301A true GB449301A (en) | 1936-06-24 |
Family
ID=6538251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1474/36A Expired GB449301A (en) | 1935-01-16 | 1936-01-16 | Improved process for the production of hollow bodies from cellulose products and other plastic masses |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR800745A (en) |
| GB (1) | GB449301A (en) |
| NL (1) | NL43999C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004002709A1 (en) * | 2002-06-28 | 2004-01-08 | Contitech Luftfedersysteme Gmbh | Device and method for the detachment of a tube blank from a support core |
| WO2017176578A1 (en) * | 2016-04-04 | 2017-10-12 | Bombardier Inc. | Demolding method and apparatus |
-
0
- NL NL43999D patent/NL43999C/xx active
-
1936
- 1936-01-15 FR FR800745D patent/FR800745A/en not_active Expired
- 1936-01-16 GB GB1474/36A patent/GB449301A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004002709A1 (en) * | 2002-06-28 | 2004-01-08 | Contitech Luftfedersysteme Gmbh | Device and method for the detachment of a tube blank from a support core |
| US7763144B2 (en) | 2002-06-28 | 2010-07-27 | Contitech Luftefedersystem GmbH | Device and method for the detachment of a tube blank from a support core |
| WO2017176578A1 (en) * | 2016-04-04 | 2017-10-12 | Bombardier Inc. | Demolding method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| FR800745A (en) | 1936-07-17 |
| NL43999C (en) |
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