GB656121A - Methods for making safety inner tubes for pneumatic tires - Google Patents
Methods for making safety inner tubes for pneumatic tiresInfo
- 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
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.
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)
| 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 |
-
1948
- 1948-12-31 GB GB33607/48A patent/GB656121A/en not_active Expired
Cited By (2)
| 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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