GB656121A - Methods for making safety inner tubes for pneumatic tires - Google Patents

Methods for making safety inner tubes for pneumatic tires

Info

Publication number
GB656121A
GB656121A GB33607/48A GB3360748A GB656121A GB 656121 A GB656121 A GB 656121A GB 33607/48 A GB33607/48 A GB 33607/48A GB 3360748 A GB3360748 A GB 3360748A GB 656121 A GB656121 A GB 656121A
Authority
GB
United Kingdom
Prior art keywords
tube
reinforced
mandrel
methods
pneumatic tires
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
GB33607/48A
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.)
Wingfoot Corp
Original Assignee
Wingfoot Corp
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 Wingfoot Corp filed Critical Wingfoot Corp
Publication of GB656121A publication Critical patent/GB656121A/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
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/02—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of crude rubber, gutta-percha, or similar substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Tires In General (AREA)

Abstract

656,121. Pneumatic tyres. WINGFOOT CORPORATION. Dec. 31, 1948, No. 33607. Convention date, July 30. [Classes 144 (i) and 144 (ii)] An air tube of the kind comprising a main rubber tube enclosing a fabric-reinforced tube of smaller cross-section, and normally spaced from the tread and side-wall zones of the main tube, is produced by preforming a reinforced tube 5, Fig. 1, on the part 1 of a mandrel, sliding the tube on to a flat-rubber band 4 on the stepped portion 3 of the mandrel, folding the band around the tube 5 and securing its edges, with or without a superposed rubber band 7, to the rim-seating portion of the tube 5. The built-up tube is vulcanized in a twopart mould 15, Fig. 4, pressure-fluid being admitted through openings 21, 18 in the valvestem 17 to the tubes 19, 20 respectively. After vulcanization, and whilst the tube is still heated, the reinforced tube 19 is re-inflated with the outer tube 20 open to atmosphere, whereby the tube 19 is given a permanent set in cross-section during cooling.
GB33607/48A 1948-07-30 1948-12-31 Methods for making safety inner tubes for pneumatic tires Expired GB656121A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US656121XA 1948-07-30 1948-07-30

Publications (1)

Publication Number Publication Date
GB656121A true GB656121A (en) 1951-08-15

Family

ID=22063903

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33607/48A Expired GB656121A (en) 1948-07-30 1948-12-31 Methods for making safety inner tubes for pneumatic tires

Country Status (1)

Country Link
GB (1) GB656121A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392072A (en) * 1964-09-01 1968-07-09 Sterling Alderfer Company Tire construction
GB2227213A (en) * 1988-07-11 1990-07-25 Young Ho Yoo Pneumatic tyre assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392072A (en) * 1964-09-01 1968-07-09 Sterling Alderfer Company Tire construction
GB2227213A (en) * 1988-07-11 1990-07-25 Young Ho Yoo Pneumatic tyre assembly

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