GB626945A - Improvements in the manufacture of tubes of thermoplastic materials - Google Patents

Improvements in the manufacture of tubes of thermoplastic materials

Info

Publication number
GB626945A
GB626945A GB13343/46A GB1334346A GB626945A GB 626945 A GB626945 A GB 626945A GB 13343/46 A GB13343/46 A GB 13343/46A GB 1334346 A GB1334346 A GB 1334346A GB 626945 A GB626945 A GB 626945A
Authority
GB
United Kingdom
Prior art keywords
thermoplastic materials
tubes
manufacture
conduits
distributer
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
GB13343/46A
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.)
LAVORAZIONE MAT PLAST
Original Assignee
LAVORAZIONE MAT PLAST
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 LAVORAZIONE MAT PLAST filed Critical LAVORAZIONE MAT PLAST
Publication of GB626945A publication Critical patent/GB626945A/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
    • B29C48/269—Extrusion in non-steady condition, e.g. start-up or shut-down
    • B29C48/2692—Material change
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
    • 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
    • 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
    • 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
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes

Landscapes

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

Abstract

626,945. Extruding tubes. SOC P.A. LAVORAZIONE MATERIE PLASTICHE. May 2, 1946, No. 13.343. Convention date, June 21, 1944. [Class 87 (ii)] [Also in Group XXVIII] A tube is formed of two or more helical portions 1, 2 of thermoplastic material of different properties, colours, &c., by a rotary distributer 6 having conduits 9, 10 fed respectively with two different thermoplastic materials by extrusion presses P, P<SP>1</SP> and annular chambers 4, 41 opening into the conduits by means of annular slots. The distributer is driven by a pinion 12.
GB13343/46A 1944-06-21 1946-05-02 Improvements in the manufacture of tubes of thermoplastic materials Expired GB626945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT626945X 1944-06-21

Publications (1)

Publication Number Publication Date
GB626945A true GB626945A (en) 1949-07-25

Family

ID=11293556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13343/46A Expired GB626945A (en) 1944-06-21 1946-05-02 Improvements in the manufacture of tubes of thermoplastic materials

Country Status (1)

Country Link
GB (1) GB626945A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126306A (en) * 1964-03-24 Attoxj
US3290727A (en) * 1961-09-05 1966-12-06 Petzetakis Aristovoulos George Apparatus for forming composite elements
US3289250A (en) * 1963-07-26 1966-12-06 Henry J Zernay Extruder
US3347287A (en) * 1965-03-22 1967-10-17 Anderson Bros Mfg Co Nozzle apparatus
US4207045A (en) * 1974-12-10 1980-06-10 Rasmussen O B Extrusion apparatus involving rotations
US4874305A (en) * 1988-11-03 1989-10-17 Somerset Technologies, Inc. Accumulator extrusion head for producing striped parisons
US6306235B1 (en) 1997-10-16 2001-10-23 Nomaco, Inc. Spiral formed products and method of manufacture
US8287684B2 (en) 2004-05-27 2012-10-16 Nomaco Inc. Foam welding and profile manufacturing system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126306A (en) * 1964-03-24 Attoxj
US3290727A (en) * 1961-09-05 1966-12-06 Petzetakis Aristovoulos George Apparatus for forming composite elements
US3289250A (en) * 1963-07-26 1966-12-06 Henry J Zernay Extruder
US3347287A (en) * 1965-03-22 1967-10-17 Anderson Bros Mfg Co Nozzle apparatus
US4207045A (en) * 1974-12-10 1980-06-10 Rasmussen O B Extrusion apparatus involving rotations
US4874305A (en) * 1988-11-03 1989-10-17 Somerset Technologies, Inc. Accumulator extrusion head for producing striped parisons
US6306235B1 (en) 1997-10-16 2001-10-23 Nomaco, Inc. Spiral formed products and method of manufacture
US6537405B1 (en) 1997-10-16 2003-03-25 Nomaco, Inc. Spiral formed products and method of manufacture
US8287684B2 (en) 2004-05-27 2012-10-16 Nomaco Inc. Foam welding and profile manufacturing system

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