GB988081A - Improvements in or relating to pneumatic tyres - Google Patents

Improvements in or relating to pneumatic tyres

Info

Publication number
GB988081A
GB988081A GB3221160A GB3221160A GB988081A GB 988081 A GB988081 A GB 988081A GB 3221160 A GB3221160 A GB 3221160A GB 3221160 A GB3221160 A GB 3221160A GB 988081 A GB988081 A GB 988081A
Authority
GB
United Kingdom
Prior art keywords
tyre
press
rubber
sept
cooled
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
GB3221160A
Inventor
Ernest Frederick Powell
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co 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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB3221160A priority Critical patent/GB988081A/en
Priority to FR873726A priority patent/FR1301218A/en
Publication of GB988081A publication Critical patent/GB988081A/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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0633—After-treatment specially adapted for vulcanising tyres
    • B29D30/0643—Cooling during post cure inflation; Post cure inflators used therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0633—After-treatment specially adapted for vulcanising tyres
    • B29D2030/0634—Measuring, calculating, correcting tyre uniformity, e.g. correcting RFV
    • B29D2030/0635—Measuring and calculating tyre uniformity, e.g. using mathematical methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0633—After-treatment specially adapted for vulcanising tyres
    • B29D2030/0634—Measuring, calculating, correcting tyre uniformity, e.g. correcting RFV
    • B29D2030/0641—Correcting by restraining tyre deformation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

988,081. Moulding tyres. DUNLOP RUBBER CO. Sept. 7, 1961 [Sept. 20, 1960], No. 32211/60. Heading B5A. In a rayon or nylon reinforced tyre, buckling caused by the heat-shrinkage of the nylon reinforcing material, is reduced by removing the tyre from the mould whilst the tread portion is still plastic, inflating it, and then compressing the side walls between press platens. The tyre is removed from the press, when the rubber has cooled. In the case of a nylon reinforced tyre the rubber must have cooled to a temperature below which no heat shrinkage can occur before it is removed from the press. In one modification the platens of the press and the outer walls of the rubber tyre afford an airtight seal and the tyre is inflated whilst it is held fast by the press. In a further modification the head of the tyre engages with a projection on the platen to form on airtight seal.
GB3221160A 1960-09-20 1960-09-20 Improvements in or relating to pneumatic tyres Expired GB988081A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3221160A GB988081A (en) 1960-09-20 1960-09-20 Improvements in or relating to pneumatic tyres
FR873726A FR1301218A (en) 1960-09-20 1961-09-20 Improvements to pneumatic tires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3221160A GB988081A (en) 1960-09-20 1960-09-20 Improvements in or relating to pneumatic tyres

Publications (1)

Publication Number Publication Date
GB988081A true GB988081A (en) 1965-04-07

Family

ID=10335034

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3221160A Expired GB988081A (en) 1960-09-20 1960-09-20 Improvements in or relating to pneumatic tyres

Country Status (1)

Country Link
GB (1) GB988081A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888872A2 (en) * 1997-07-03 1999-01-07 Bridgestone Corporation Method for controlling tyre uniformity and tyre post-cure inflation apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888872A2 (en) * 1997-07-03 1999-01-07 Bridgestone Corporation Method for controlling tyre uniformity and tyre post-cure inflation apparatus
EP0888872A3 (en) * 1997-07-03 1999-12-15 Bridgestone Corporation Method for controlling tyre uniformity and tyre post-cure inflation apparatus
US6203748B1 (en) 1997-07-03 2001-03-20 Bridgestone Corporation Tire configuration control method, holding apparatus for post cure inflation, and post cure inflation apparatus

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