GB844199A - Extrusion apparatus - Google Patents
Extrusion apparatusInfo
- Publication number
- GB844199A GB844199A GB6532/58A GB653258A GB844199A GB 844199 A GB844199 A GB 844199A GB 6532/58 A GB6532/58 A GB 6532/58A GB 653258 A GB653258 A GB 653258A GB 844199 A GB844199 A GB 844199A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tapered
- channel
- tip
- core
- helical
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
-
- 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
- B29C48/05—Filamentary, e.g. strands
-
- 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
- B29C48/06—Rod-shaped
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
844,199. Extruding coatings on cores. STANDARD TELEPHONES & CABLES Ltd. Feb. 28, 1958 [March 7, 1957], No. 6532/58. Class 87(2). An extrusion-core coating apparatus comprises a block member 2 having an axial channel 4, a tapered member 14 disposed in the channel 4 and having a helical rib the edges of which are of differing pitch so that the width of the helical groove diminishes towards the smaller end of the member 14, a die 5 having a tapered bore 6 within which the small end of the tapered member 14 is centred, a chamber 3 through which the plastic material is fed and a second channel 3<SP>1</SP> extending from the chamber 3 to the channel 4 in a direction tangential to the base of the helical groove in the member 14 and being of rectangular cross-section and of a size equal to that of the groove at that position. The tapered member 14 has a tip 11 with a ball and socket seating 15 so that the tip 11 may be centered in the die 5 by means of screws 26 in a collar 20 and its helical rib may be formed with steps 14<SP>1</SP> so that its depth decreases towards its tapered end. The tip 11 has a bore 30 for the passage of the core to be coated and has suction holes 31 leading to a line 33 enabling the plastic sheaf to be drawn on to the core. A cover 27 with an inspection window 28 is provided and heating is by electrical elements 9, 19.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US844199XA | 1957-03-07 | 1957-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB844199A true GB844199A (en) | 1960-08-10 |
Family
ID=22184856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6532/58A Expired GB844199A (en) | 1957-03-07 | 1958-02-28 | Extrusion apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB844199A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113764130A (en) * | 2021-09-06 | 2021-12-07 | 安徽国信电缆科技股份有限公司 | Environment-friendly cable for solar photovoltaic system |
-
1958
- 1958-02-28 GB GB6532/58A patent/GB844199A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113764130A (en) * | 2021-09-06 | 2021-12-07 | 安徽国信电缆科技股份有限公司 | Environment-friendly cable for solar photovoltaic system |
CN113764130B (en) * | 2021-09-06 | 2023-12-19 | 安徽国信电缆科技股份有限公司 | Environment-friendly cable for solar photovoltaic system |
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