GB890723A - Improvements in and relating to the formation of folds in thermoplastic plate material - Google Patents

Improvements in and relating to the formation of folds in thermoplastic plate material

Info

Publication number
GB890723A
GB890723A GB17239/58A GB1723958A GB890723A GB 890723 A GB890723 A GB 890723A GB 17239/58 A GB17239/58 A GB 17239/58A GB 1723958 A GB1723958 A GB 1723958A GB 890723 A GB890723 A GB 890723A
Authority
GB
United Kingdom
Prior art keywords
knife
parts
heated
cutting edge
thermoplastic material
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
GB17239/58A
Inventor
Emil Rottner
Walter Koch
Helmut Portele
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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
Priority to DEF20029A priority Critical patent/DE1118443B/en
Application filed by Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Priority to GB17239/58A priority patent/GB890723A/en
Publication of GB890723A publication Critical patent/GB890723A/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
    • B29C53/04—Bending or folding of plates or sheets
    • B29C53/06—Forming folding lines by pressing or scoring
    • B29C53/063—Forming folding lines by pressing or scoring combined with folding
    • B29C53/066—Forming folding lines by pressing or scoring combined with folding and joining the sides of the folding line, e.g. "Abkantschweissen"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

890,723. Seaming non-metallic sheet material. FARBWERKE HOECHST A.G. May 29, 1958, No. 17239/58. Class 42 (1). [Also in Group XVI] Apparatus primarily intended for use in a bending process (see Group XVI) may also be used for the buttwelding of longitudinal seams in thermoplastic material. The apparatus comprises a two-part table 3 each part of which is pivotally mounted at 8 and vertically adjustable, hand wheels 9 serving to clamp the table parts in position. A knife 1 is mounted on a beam 2 and projects upwards through a slot formed between the two parts of the table 3. The knife is heated by passing a hot fluid, e.g. steam or diphenyl oxide, through a conduit 11 therein, or may be heated electrically or by a gas burner, and heatinsulating material 12 is interposed between the knife and the beam 2. The pieces of thermoplastic material to be seamed are placed on the two parts of the table 3 respectively and the surfaces to be united are simultaneously pressed one against each side of the knife 1, the cutting edge of which stands above the upper surface of the table. The knife is heated and when the correct temperature is reached the apparatus is adjusted so that the cutting edge of the knife is withdrawn from the slot between the two parts of the table and the surfaces to be welded are pressed together by hand or mechanically.
GB17239/58A 1956-04-11 1958-05-29 Improvements in and relating to the formation of folds in thermoplastic plate material Expired GB890723A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEF20029A DE1118443B (en) 1956-04-11 1956-04-11 Device for bending at a selectable angle and welding panels made of thermoplastics
GB17239/58A GB890723A (en) 1956-04-11 1958-05-29 Improvements in and relating to the formation of folds in thermoplastic plate material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF20029A DE1118443B (en) 1956-04-11 1956-04-11 Device for bending at a selectable angle and welding panels made of thermoplastics
GB17239/58A GB890723A (en) 1956-04-11 1958-05-29 Improvements in and relating to the formation of folds in thermoplastic plate material

Publications (1)

Publication Number Publication Date
GB890723A true GB890723A (en) 1962-03-07

Family

ID=25973965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17239/58A Expired GB890723A (en) 1956-04-11 1958-05-29 Improvements in and relating to the formation of folds in thermoplastic plate material

Country Status (2)

Country Link
DE (1) DE1118443B (en)
GB (1) GB890723A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220611A (en) * 1988-05-28 1990-01-17 Barry Francis Strong Plastic box welding process
EP0811476A1 (en) * 1996-06-06 1997-12-10 TECNIMETAL S.r.l. Method for manufacturing a bellows, and associated bellows

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739340C (en) * 1938-04-30 1943-09-22 Ig Farbenindustrie Ag Method for joining components made of thermoformable plastics
DE831314C (en) * 1948-10-02 1952-02-11 Peter Hoppe Dipl Ing Process for the production of profiled bodies
DE1673783U (en) * 1951-04-11 1954-03-18 Lorenz C Ag DEVICE FOR SEAM WELDING OF THERMOPLASTIC FILMS.
DE894407C (en) * 1951-09-02 1953-10-26 Siemens Ag Foam strips or cores, in particular for insulating electrical lines and cables

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220611A (en) * 1988-05-28 1990-01-17 Barry Francis Strong Plastic box welding process
EP0811476A1 (en) * 1996-06-06 1997-12-10 TECNIMETAL S.r.l. Method for manufacturing a bellows, and associated bellows

Also Published As

Publication number Publication date
DE1118443B (en) 1961-11-30
DE1118443C2 (en) 1962-06-20

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