GB902745A - Improvements in or relating to the bending of thermoplastic tubes - Google Patents

Improvements in or relating to the bending of thermoplastic tubes

Info

Publication number
GB902745A
GB902745A GB812/58A GB81258A GB902745A GB 902745 A GB902745 A GB 902745A GB 812/58 A GB812/58 A GB 812/58A GB 81258 A GB81258 A GB 81258A GB 902745 A GB902745 A GB 902745A
Authority
GB
United Kingdom
Prior art keywords
hook
tubing
bending
relating
thermoplastic tubes
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
GB812/58A
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.)
HILMOR Ltd
Original Assignee
HILMOR 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 HILMOR Ltd filed Critical HILMOR Ltd
Priority to GB812/58A priority Critical patent/GB902745A/en
Publication of GB902745A publication Critical patent/GB902745A/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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/08—Bending or folding of tubes or other profiled members
    • B29C53/083—Bending or folding of tubes or other profiled members bending longitudinally, i.e. modifying the curvature of the tube axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
    • B21D7/063—Pliers with forming dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

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

Abstract

902,745. Bending thermoplastic tubing. HILMOR Ltd., and HAWES, J. H. April 7, 1959 [Jan. 8, 1958], No. 812/58. Class 87(2). Heavy gauge polyethylene tubing in the cold state is placed in an arclike groove 11 in the periphery of a forming tool 10 and is clipped in position by a hook 13, and either by hook 12 if the tubing is required to be bent through a right angle, or adjustable hook 18 for smaller angles. The tube is heated and thereafter cooled so that a permanent bend through the required angle is produced. Instead of hooks 12, 13, 18, U-shaped detachable clips may be employed.
GB812/58A 1958-01-08 1958-01-08 Improvements in or relating to the bending of thermoplastic tubes Expired GB902745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB812/58A GB902745A (en) 1958-01-08 1958-01-08 Improvements in or relating to the bending of thermoplastic tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB812/58A GB902745A (en) 1958-01-08 1958-01-08 Improvements in or relating to the bending of thermoplastic tubes

Publications (1)

Publication Number Publication Date
GB902745A true GB902745A (en) 1962-08-09

Family

ID=9710931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB812/58A Expired GB902745A (en) 1958-01-08 1958-01-08 Improvements in or relating to the bending of thermoplastic tubes

Country Status (1)

Country Link
GB (1) GB902745A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2216082A1 (en) * 1973-02-07 1974-08-30 Klein Ets Georges Bending extruded PVC section - in which workpiece is heated while in bent condition, followed by cooling
FR2362712A1 (en) * 1976-08-26 1978-03-24 Dynamit Nobel Ag PROCESS AND DEVICE FOR MANUFACTURING SHAPED PARTS, IN PARTICULAR CURVED FITTINGS, FROM TUBES OF EXPANDED THERMOPLASTIC SYNTHETIC MATERIAL
EP0039377A1 (en) * 1980-05-07 1981-11-11 Peter Robert Mitchell Thermoforming tubular articles
WO1981003145A1 (en) * 1980-05-07 1981-11-12 P Mitchell Thermoforming tubular articles
DE3939352A1 (en) * 1989-11-29 1991-06-06 Bundy Gmbh Bending tool for thermoplastic tubes - consists of heated block made up of lengths with suitably shaped groove which is narrower along its mouth so that tube snap-fits into it
GB2249750A (en) * 1990-11-13 1992-05-20 Mckechnie Plastics Ltd Improved method and apparatus for shaping thermoplastic tubes
US8663529B2 (en) 2004-11-26 2014-03-04 Gn Resound A/S Holder and method for shaping a sound tube
US20190015886A1 (en) * 2017-07-11 2019-01-17 Stride Tool, Llc Tube bending apparatus and method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2216082A1 (en) * 1973-02-07 1974-08-30 Klein Ets Georges Bending extruded PVC section - in which workpiece is heated while in bent condition, followed by cooling
FR2362712A1 (en) * 1976-08-26 1978-03-24 Dynamit Nobel Ag PROCESS AND DEVICE FOR MANUFACTURING SHAPED PARTS, IN PARTICULAR CURVED FITTINGS, FROM TUBES OF EXPANDED THERMOPLASTIC SYNTHETIC MATERIAL
EP0039377A1 (en) * 1980-05-07 1981-11-11 Peter Robert Mitchell Thermoforming tubular articles
WO1981003145A1 (en) * 1980-05-07 1981-11-12 P Mitchell Thermoforming tubular articles
DE3939352A1 (en) * 1989-11-29 1991-06-06 Bundy Gmbh Bending tool for thermoplastic tubes - consists of heated block made up of lengths with suitably shaped groove which is narrower along its mouth so that tube snap-fits into it
GB2249750A (en) * 1990-11-13 1992-05-20 Mckechnie Plastics Ltd Improved method and apparatus for shaping thermoplastic tubes
US5200124A (en) * 1990-11-13 1993-04-06 Mckechnie Plastics Limited Method and apparatus for shaping thermoplastic tubes
GB2249750B (en) * 1990-11-13 1994-09-07 Mckechnie Plastics Ltd Improved method and apparatus for shaping thermoplastic tubes
US8663529B2 (en) 2004-11-26 2014-03-04 Gn Resound A/S Holder and method for shaping a sound tube
US20190015886A1 (en) * 2017-07-11 2019-01-17 Stride Tool, Llc Tube bending apparatus and method
US10894281B2 (en) * 2017-07-11 2021-01-19 Stride Tool, Llc. Tube bending apparatus and method

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