GB874056A - Improvements in or relating to the manufacture of hollow articles from thermoplasticmaterials - Google Patents

Improvements in or relating to the manufacture of hollow articles from thermoplasticmaterials

Info

Publication number
GB874056A
GB874056A GB775759A GB775759A GB874056A GB 874056 A GB874056 A GB 874056A GB 775759 A GB775759 A GB 775759A GB 775759 A GB775759 A GB 775759A GB 874056 A GB874056 A GB 874056A
Authority
GB
United Kingdom
Prior art keywords
nozzle
tube
amount
blow
varied
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
GB775759A
Inventor
Alexander Kennaway
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.)
Crown Packaging UK Ltd
Original Assignee
Metal Box PLC
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 Metal Box PLC filed Critical Metal Box PLC
Priority to GB775759A priority Critical patent/GB874056A/en
Priority to FR819993A priority patent/FR1249682A/en
Priority to DEM44565A priority patent/DE1178197B/en
Publication of GB874056A publication Critical patent/GB874056A/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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

874,056. Extruding tubes for blow-moulding. METAL BOX CO. Ltd. Dec. 7, 1959 [March 5, 1959], No. 7757/59. Class 87(2). A method of making a tube of varying wall thickness for use in a blow-moulding operation, comprises varying the amount of material delivered to an extrusion nozzle and moving the extruded tube away from the nozzle at a constant linear speed. The amount of material M, e.g. polyethylene, p.v.c., polystyrene or cellulose esters, delivered to the nozzle 2 is varied by axial movement of a valve member 31 operated against a spring 32 by a hydraulic cylinder and the extruded tube is gripped by pivoted arms 8, 9 mounted on a mounting 10 and normally held in the non-gripping position by a spring 12. During extrusion an air cylinder 28 moves down a rod 27 which firstly rocks a lever 23 to force a frusto-conical member 13 between the arms 8, 9 forcing them to grip the tube 3, and then moves down, at a constant speed, the mounting 10 and gripped tube 3 whilst the amount of material fed to the nozzle 2 is varied by the valve 31. An electrical control circuit Fig. 6, (not shown) and safety devices are provided.
GB775759A 1959-03-05 1959-03-05 Improvements in or relating to the manufacture of hollow articles from thermoplasticmaterials Expired GB874056A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB775759A GB874056A (en) 1959-03-05 1959-03-05 Improvements in or relating to the manufacture of hollow articles from thermoplasticmaterials
FR819993A FR1249682A (en) 1959-03-05 1960-03-01 Improvements in the manufacture of hollow articles in thermoplastic materials
DEM44565A DE1178197B (en) 1959-03-05 1960-03-04 Method and device for extrusion of a tubular intermediate product made of thermoplastic material and having different wall thicknesses over its length

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB775759A GB874056A (en) 1959-03-05 1959-03-05 Improvements in or relating to the manufacture of hollow articles from thermoplasticmaterials

Publications (1)

Publication Number Publication Date
GB874056A true GB874056A (en) 1961-08-02

Family

ID=9839139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB775759A Expired GB874056A (en) 1959-03-05 1959-03-05 Improvements in or relating to the manufacture of hollow articles from thermoplasticmaterials

Country Status (3)

Country Link
DE (1) DE1178197B (en)
FR (1) FR1249682A (en)
GB (1) GB874056A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415647A (en) * 1965-05-17 1968-12-10 Eastman Kodak Co Photographic silver halide diffusion transfer process
DE1296783B (en) * 1962-11-13 1969-06-04 Monsanto Co Method and device for extruding plastic in the form of tubular parts
GB2172541A (en) * 1985-03-22 1986-09-24 Lyons Maid Limited Extruding discrete foodstuff pieces

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB955391A (en) * 1960-01-12 1964-04-15 British Xylonite Co Ltd Method of producing shaped hollow bodies and apparatus for carrying out such methods
US3091803A (en) * 1961-02-20 1963-06-04 Phillips Petroleum Co Blow molding apparatus
US3211815A (en) * 1962-03-05 1965-10-12 Purex Corp Ltd Molded bottle ejection apparatus and method
CH397224A (en) * 1963-02-16 1965-08-15 Kautex Werke Gmbh Device for the production of hollow bodies from thermoplastic material
DE1479154C2 (en) * 1965-05-17 1973-01-04 Egan Machinery Co., Somerville, N.J. (V.St.A.) Blow molding machine for the production of hollow bodies from thermoplastic material using the blow molding process
US4176413A (en) * 1977-05-31 1979-12-04 Trayco, Inc. Unitary, integral plastic tank and rim for a toilet, and method for making same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB744895A (en) * 1950-10-19 1956-02-15 Injection Molding Company Improvements in the extrusion-moulding of plastics

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1296783B (en) * 1962-11-13 1969-06-04 Monsanto Co Method and device for extruding plastic in the form of tubular parts
US3415647A (en) * 1965-05-17 1968-12-10 Eastman Kodak Co Photographic silver halide diffusion transfer process
GB2172541A (en) * 1985-03-22 1986-09-24 Lyons Maid Limited Extruding discrete foodstuff pieces
GB2172541B (en) * 1985-03-22 1989-06-28 Lyons Maid Limited Food processing apparatus

Also Published As

Publication number Publication date
FR1249682A (en) 1960-12-30
DE1178197B (en) 1964-09-17

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