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GB1336669A - Plastic pirn sleeves and their manufacture - Google Patents

Plastic pirn sleeves and their manufacture

Info

Publication number
GB1336669A
GB1336669A GB1295271*[A GB1295271A GB1336669A GB 1336669 A GB1336669 A GB 1336669A GB 1295271 A GB1295271 A GB 1295271A GB 1336669 A GB1336669 A GB 1336669A
Authority
GB
United Kingdom
Prior art keywords
tube
grooves
sleeve
longitudinal rows
inch
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
GB1295271*[A
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.)
DuPont Canada Inc
Original Assignee
DuPont Canada Inc
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 DuPont Canada Inc filed Critical DuPont Canada Inc
Publication of GB1336669A publication Critical patent/GB1336669A/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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • B29C59/043—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts for profiled articles
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

1336669 Plastics tubes DU PONT OF CANADA Ltd 4 May 1971 [4 May 1970] 12952/71 Heading F2P [Also in Divisions B8 and B5] A plastic pirn sleeve Fig. 1 comprises a tube with longitudinal rows of substantially circumferential grooves alternating with longitudinal blank areas; the grooves having a profile that is chordal, lunate or lenticular with a maximum depth peak-to-valley of 0À002 to 0À010 inch and tapering at either end to be flush with the blank areas; there being between 30 and 70 grooves per inch and the longitudinal rows being between 1/32 and ¢ inch wide. The longitudinal rows may extend axially or helically with or without interruptions along the tube and the grooves may diverge from being truly circumferential by as much as 10 degrees. The material of the sleeve may be, e.g. polyethylene, polypropylene, pvc or its copolymers, cellulosics such as cellulose acetate butyrate, or an ABS resin. Apparatus for producing the sleeve may comprise a mandrel 10 which supports a thermoplastic tube 11 and passes within a frame 12 carrying grooved wheels 15 mounted in brackets 17 and kept pressed against the tube 11 by springs 19. The die wheels 15 may be heated. Alternatively the grooves may be impressed into the tube by flat dies instead of the die wheels, and these may either be patterned metal belts or reciprocating engraved bars. Other possible apparatus is stated to be either a heated wire grid or helical threaded rollers or cutters.
GB1295271*[A 1970-05-04 1971-05-04 Plastic pirn sleeves and their manufacture Expired GB1336669A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA81840 1970-05-04

Publications (1)

Publication Number Publication Date
GB1336669A true GB1336669A (en) 1973-11-07

Family

ID=4086746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1295271*[A Expired GB1336669A (en) 1970-05-04 1971-05-04 Plastic pirn sleeves and their manufacture

Country Status (8)

Country Link
BE (1) BE766614A (en)
CA (1) CA922462A (en)
CH (1) CH538419A (en)
DE (1) DE2121982A1 (en)
FR (1) FR2091129A5 (en)
GB (1) GB1336669A (en)
LU (1) LU63093A1 (en)
NL (1) NL7106086A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141953A (en) 1975-08-05 1979-02-27 Societe Chimique Des Charbonnages Cdf Chimie Method for accelerating the transformation of the crystalline form of isotactic polybutene pipe
FR2806955A1 (en) * 2000-03-29 2001-10-05 Joseph Schillaci EXTRUSION HEAD
WO2001051544A3 (en) * 2000-01-13 2002-03-07 Dow Chemical Co Process for in-line forming of pultruded composites
WO2006084218A3 (en) * 2005-02-03 2006-11-30 Boston Scient Scimed Inc Deforming surface of drug eluting coating to alter drug relase profile of a medical device
CN119666625A (en) * 2025-02-13 2025-03-21 海尼肯智能技术成都有限公司 A blade strength detection device for wind turbine blade production

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3515616A1 (en) * 1985-04-30 1986-10-30 Heinz Schaaf Nahrungsmittel-Extrusionstechnik, 6277 Bad Camberg DEVICE FOR EXTRUDING FOOD
WO1995015843A1 (en) * 1993-12-09 1995-06-15 Siemens Aktiengesellschaft Process for manufacturing insulator bodies with shielding ribs

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141953A (en) 1975-08-05 1979-02-27 Societe Chimique Des Charbonnages Cdf Chimie Method for accelerating the transformation of the crystalline form of isotactic polybutene pipe
WO2001051544A3 (en) * 2000-01-13 2002-03-07 Dow Chemical Co Process for in-line forming of pultruded composites
US6872343B2 (en) 2000-01-13 2005-03-29 Fulcrum Composites, Inc. Process for in-line forming of pultruded composites
FR2806955A1 (en) * 2000-03-29 2001-10-05 Joseph Schillaci EXTRUSION HEAD
WO2006084218A3 (en) * 2005-02-03 2006-11-30 Boston Scient Scimed Inc Deforming surface of drug eluting coating to alter drug relase profile of a medical device
CN119666625A (en) * 2025-02-13 2025-03-21 海尼肯智能技术成都有限公司 A blade strength detection device for wind turbine blade production

Also Published As

Publication number Publication date
LU63093A1 (en) 1971-08-31
CH538419A (en) 1973-06-30
DE2121982A1 (en) 1971-11-25
FR2091129A5 (en) 1972-01-14
CA922462A (en) 1973-03-13
BE766614A (en) 1971-10-01
NL7106086A (en) 1971-11-08

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed