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GB438116A - Improvements in the manufacture of tires - Google Patents

Improvements in the manufacture of tires

Info

Publication number
GB438116A
GB438116A GB1035534A GB1035534A GB438116A GB 438116 A GB438116 A GB 438116A GB 1035534 A GB1035534 A GB 1035534A GB 1035534 A GB1035534 A GB 1035534A GB 438116 A GB438116 A GB 438116A
Authority
GB
United Kingdom
Prior art keywords
stated
temperature
pressure
tires
manufacture
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
GB1035534A
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.)
WILLIAM JESSOP FRASER
Original Assignee
WILLIAM JESSOP FRASER
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 WILLIAM JESSOP FRASER filed Critical WILLIAM JESSOP FRASER
Priority to GB1035534A priority Critical patent/GB438116A/en
Publication of GB438116A publication Critical patent/GB438116A/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)
    • B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
    • B29D30/54—Retreading
    • 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)
    • B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
    • B29D30/54—Retreading
    • B29D2030/544—Applying an intermediate adhesive layer, e.g. cement or cushioning element between carcass and tread

Landscapes

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

Abstract

A composite tyre cover built up from two partly defective covers is vulcanized in a closed mould at a temperature of 200 to 260 DEG F. and a pressure of 200 to 300 pounds per square inch. These temperatures and pressures are stated to be respectively less than and greater than those normally used for the original vulcanization; and, by extending the time to three to six hours, it is stated that any desired re-tread pattern may be formed. The change of treadform is preferably accomplished slowly and, for this purpose, a comparatively low pressure is used until the proper temperature is set up.
GB1035534A 1934-04-05 1934-04-05 Improvements in the manufacture of tires Expired GB438116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1035534A GB438116A (en) 1934-04-05 1934-04-05 Improvements in the manufacture of tires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1035534A GB438116A (en) 1934-04-05 1934-04-05 Improvements in the manufacture of tires

Publications (1)

Publication Number Publication Date
GB438116A true GB438116A (en) 1935-11-05

Family

ID=9966313

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1035534A Expired GB438116A (en) 1934-04-05 1934-04-05 Improvements in the manufacture of tires

Country Status (1)

Country Link
GB (1) GB438116A (en)

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