GB677212A - An improved method of producing bottles and the like from plastic materials - Google Patents

An improved method of producing bottles and the like from plastic materials

Info

Publication number
GB677212A
GB677212A GB28157/50A GB2815750A GB677212A GB 677212 A GB677212 A GB 677212A GB 28157/50 A GB28157/50 A GB 28157/50A GB 2815750 A GB2815750 A GB 2815750A GB 677212 A GB677212 A GB 677212A
Authority
GB
United Kingdom
Prior art keywords
mould
tube
nozzle
compressed air
halves
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
GB28157/50A
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.)
Svenska Polva AB
Original Assignee
Svenska Polva AB
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 Svenska Polva AB filed Critical Svenska Polva AB
Publication of GB677212A publication Critical patent/GB677212A/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
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/4823—Moulds with incorporated heating or cooling means

Landscapes

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

Abstract

677,212. Blow-moulding plastic bottles &c. SVENSKA AKTIEBOLAGET POLVA. Nov. 17, 1950 [Nov. 8, 1950], No. 28157/50. Class 87(ii) A tube 20 of plastic material, e.g. polythene, is extruded through a nozzle 7 into a space between the two halves 13 of a split mould, and the mould is then closed as shown in Fig. 2, the end of the tube being thereby closed at A by the meeting mould halves. Compressed air or other gas is then blown through a pipe 12 into the plastic tube to expand the tube into contact with the mould: The mould is then lowered away from the nozzle, whereupon the compressed air breaks the tube connection between the nozzle and the mould. The mould is cooled by passing fluid through conduits 15, 16, 17. A handle 18 co-acts with a knob 19 to lock the mould halves together. The extrusion nozzle includes a double-conical core 8 within which is formed a compressed air channel 11. Specification 516,262 is referred to.
GB28157/50A 1950-11-08 1950-11-17 An improved method of producing bottles and the like from plastic materials Expired GB677212A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE677212X 1950-11-08

Publications (1)

Publication Number Publication Date
GB677212A true GB677212A (en) 1952-08-13

Family

ID=20314797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28157/50A Expired GB677212A (en) 1950-11-08 1950-11-17 An improved method of producing bottles and the like from plastic materials

Country Status (1)

Country Link
GB (1) GB677212A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935764A (en) * 1956-12-21 1960-05-10 Plax Corp Method for blowing plastic bottles
US2975472A (en) * 1957-09-10 1961-03-21 Lavorazione Mat Plastiche Sas Method and apparatus for blowing hollow plastic articles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935764A (en) * 1956-12-21 1960-05-10 Plax Corp Method for blowing plastic bottles
US2975472A (en) * 1957-09-10 1961-03-21 Lavorazione Mat Plastiche Sas Method and apparatus for blowing hollow plastic articles

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