GB1050167A - - Google Patents
Info
- Publication number
- GB1050167A GB1050167A GB1050167DA GB1050167A GB 1050167 A GB1050167 A GB 1050167A GB 1050167D A GB1050167D A GB 1050167DA GB 1050167 A GB1050167 A GB 1050167A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nip
- plates
- tubular film
- rolls
- guide
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
Abstract
1,050,167. Tubular film manufacture. BRITISH VISQUEEN Ltd. Oct. 1, 1965 [Oct. 20, 1964], No. 42734/64. Heading B5B. A tubular film flattening and cooling apparatus comprises a pair of rotatable nip rolls 1 illustrated in the drawing (not shown), said rolls being adapted to withdraw the plastics tubing continuously upwards from an extrusion die and to seal within the section of the tubing between the extrusion die and the nip a bubble of air or other gas introduced through a channel in the core of the extrusion die, cooled rectangular guide plates 2 converging towards the nip of the rolls and thus forming a V-shaped guide adapted to contact and guide the inflated tubular film as it collapses to a flattened form to pass through the nip, the ends of these guide plates being parallel to the nip, and a pair of metal cooling plates 3 adapted to contact and cool the side portions of the tubular film, including the parts destined to form the edge folds of the tubular film at the nip, these plates diverging towards the nip and being of triangular shape, adapted to fit between the guide plates 2. The plates 2 and 3 may be made from 1/8 inch thick copper sheet, and to the reverse side of each may be attached copper tubing (shown at 17 in the case of the plates 3) through which cooling water is downwardly passed.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1050167A true GB1050167A (en) | 1900-01-01 |
Family
ID=1755618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1050167D Expired GB1050167A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1050167A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220412561A1 (en) * | 2021-06-28 | 2022-12-29 | Delavan Inc. | Passive secondary air assist nozzles |
-
0
- GB GB1050167D patent/GB1050167A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220412561A1 (en) * | 2021-06-28 | 2022-12-29 | Delavan Inc. | Passive secondary air assist nozzles |
| US11543130B1 (en) * | 2021-06-28 | 2023-01-03 | Collins Engine Nozzles, Inc. | Passive secondary air assist nozzles |
| US20230097301A1 (en) * | 2021-06-28 | 2023-03-30 | Collins Engine Nozzles, Inc. | Passive secondary air assist nozzles |
| US11859821B2 (en) * | 2021-06-28 | 2024-01-02 | Collins Engine Nozzles, Inc. | Passive secondary air assist nozzles |
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