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GB1150094A - Improvements in or relating to Manufacture and application of moulded articles made by deep drawing - Google Patents

Improvements in or relating to Manufacture and application of moulded articles made by deep drawing

Info

Publication number
GB1150094A
GB1150094A GB38343/66A GB3834366A GB1150094A GB 1150094 A GB1150094 A GB 1150094A GB 38343/66 A GB38343/66 A GB 38343/66A GB 3834366 A GB3834366 A GB 3834366A GB 1150094 A GB1150094 A GB 1150094A
Authority
GB
United Kingdom
Prior art keywords
blanks
toroidal
bends
bend
shape
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
GB38343/66A
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Publication of GB1150094A publication Critical patent/GB1150094A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/10—Bandages or covers for the protection of the insulation, e.g. against the influence of the environment or against mechanical damage
    • F16L59/11—Rigid covers for elbows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/286—Making tube fittings for connecting pipes, e.g. U-pieces starting from sheet material
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • 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
    • B29L2023/225—Insulated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

1,150,094. Making dies; stamping. KALLE A.G. 26 Aug., 1966 [26 Aug., 1965], No. 38343/66. Headings B3A and B3Q. [Also in Divisions B5 and F2] Pipe bends, or covers for pipe bends, of parttoroidal configuration, are made from blanks of plastics or metal which blanks are deep drawn between male and female dies having cooperating surfaces which are developed directly from the bend to be produced. If, as in the example illustrated in the Figures, it is desired to form a quarter toroidal bend, a surface 8 having the shape of the bend is constructed and then slit at 7 along its inner radius. The surface is then drawn apart in the direction of the arrows 9 until a surface having no re-entrant parts is formed (see Fig. 7). This surface is then used to construct the moulding dies from which blanks having a like shape are drawn. Extra marginal edges are provided on the blanks so that when the blanks are deformed back into the quarter toroidal shape from which they were derived they may be easily welded along their inner radii. Half toroidal bends, or toroidal bends of any fraction less than a half may be made by developing suitable blanks by the cutting and stretching process described above.
GB38343/66A 1965-08-26 1966-08-26 Improvements in or relating to Manufacture and application of moulded articles made by deep drawing Expired GB1150094A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK437765AA DK112618B (en) 1965-08-26 1965-08-26 Process for the production of curved casings, in particular intended for enclosing insulated pipe bends.

Publications (1)

Publication Number Publication Date
GB1150094A true GB1150094A (en) 1969-04-30

Family

ID=8132992

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38343/66A Expired GB1150094A (en) 1965-08-26 1966-08-26 Improvements in or relating to Manufacture and application of moulded articles made by deep drawing

Country Status (11)

Country Link
AT (1) AT283836B (en)
BE (1) BE685877A (en)
CH (1) CH453016A (en)
DE (1) DE1604586B1 (en)
DK (1) DK112618B (en)
FR (1) FR1499278A (en)
GB (1) GB1150094A (en)
LU (1) LU51813A1 (en)
NL (1) NL150041B (en)
NO (1) NO125767B (en)
SE (1) SE310254B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356484A1 (en) * 1976-07-01 1978-01-27 Schmidlin Ag Draughting machine for producing developments of segments - which are used in sheet metal tubular bends has two axis carriage and paper chart

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2155801A1 (en) * 1971-10-06 1973-05-25 Miura Isago Plastics wrapping for annulus - esp tyre or coiled cable is predeformed to fit round annulus
DE2353308C3 (en) * 1973-10-24 1986-02-20 Keutner, Ernst, 8000 München Method for producing a trough-shaped, one-piece plastic film molding for sheathing a pipe elbow insulation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1754657U (en) * 1954-07-07 1957-10-24 Willi Wittstock DEVICE FOR MANUFACTURING HOLLOW BODIES FROM THERMOPLASTIC PLASTIC.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356484A1 (en) * 1976-07-01 1978-01-27 Schmidlin Ag Draughting machine for producing developments of segments - which are used in sheet metal tubular bends has two axis carriage and paper chart

Also Published As

Publication number Publication date
NO125767B (en) 1972-10-30
BE685877A (en) 1967-02-23
DK112618B (en) 1968-12-30
FR1499278A (en) 1967-10-27
SE310254B (en) 1969-04-21
DE1604586B1 (en) 1972-02-03
LU51813A1 (en) 1968-03-25
AT283836B (en) 1970-08-25
NL6611503A (en) 1967-02-27
NL150041B (en) 1976-07-15
CH453016A (en) 1968-05-31

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PE Patent expired