GB369554A - Improvements in and relating to apparatus for extruding rubber or the like goods - Google Patents

Improvements in and relating to apparatus for extruding rubber or the like goods

Info

Publication number
GB369554A
GB369554A GB28025/30A GB2802530A GB369554A GB 369554 A GB369554 A GB 369554A GB 28025/30 A GB28025/30 A GB 28025/30A GB 2802530 A GB2802530 A GB 2802530A GB 369554 A GB369554 A GB 369554A
Authority
GB
United Kingdom
Prior art keywords
core
fluid
spiders
rubber
chalk
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
Application number
GB28025/30A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB28025/30A priority Critical patent/GB369554A/en
Priority to FR721953D priority patent/FR721953A/en
Publication of GB369554A publication Critical patent/GB369554A/en
Expired legal-status Critical Current

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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/87—Cooling
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/865—Heating
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

369,554. Extruding rubber &c. DUNLOP RUBBER CO., Ltd., 32, Osnaburg Street, London, and WILLSHAW, H., of Dunlop Rubber Co., Fort Dunlop, Erding- ton, Birmingham. Sept. 19, 1930, No. 28025. [Class 87 (ii).] In apparatus for extruding hollow goods of rubber or like plastic substance, a core 4 is formed with a cavity 7 wherein fluid circulates from ducts 8, 9 in spiders 3 supporting the core 4, and the fluid is isolated from a passage 13 in the core for conveying chalk or the like to the interior of the product. The machine comprises a die-box 1 with removable die 2, and the core has a detachable nose 5. A tube 14 is forced into the core and leaves space for the fluid cavity 7. The tube 14 is formed with ducts 13, 17 for the chalk and fluid respectively and carries perforated fins 18 for distributing the fluid. The fluid is supplied at an inlet pipe 6 and is conveyed direct to the nose 5, the hottest part of the core. It then circulates in the core and finally passes through chambers such as 24 provided between a back-plate 11 and the spiders 3 and out through a pipe 10. The pipes 6, 10, and a conduit for the introduction of chalk are formed in the spiders 3. Water or cold air may be used as a fluid, and a temperature indicator may be provided. The inlet and outlet may be supplied with valves, and the spiders 3 may be stream-lined.
GB28025/30A 1930-09-19 1930-09-19 Improvements in and relating to apparatus for extruding rubber or the like goods Expired GB369554A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB28025/30A GB369554A (en) 1930-09-19 1930-09-19 Improvements in and relating to apparatus for extruding rubber or the like goods
FR721953D FR721953A (en) 1930-09-19 1931-08-25 Improvements to machines for extruding rubber or similar materials

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB28025/30A GB369554A (en) 1930-09-19 1930-09-19 Improvements in and relating to apparatus for extruding rubber or the like goods
GB576733X 1930-09-19
GB721953X 1930-09-19

Publications (1)

Publication Number Publication Date
GB369554A true GB369554A (en) 1932-03-21

Family

ID=27258676

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28025/30A Expired GB369554A (en) 1930-09-19 1930-09-19 Improvements in and relating to apparatus for extruding rubber or the like goods

Country Status (2)

Country Link
FR (1) FR721953A (en)
GB (1) GB369554A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3702226A (en) * 1971-01-20 1972-11-07 Goodrich Co B F Plastic molding

Also Published As

Publication number Publication date
FR721953A (en) 1932-03-10

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