GB555976A - Improvements in or relating to the retreading of tyres - Google Patents
Improvements in or relating to the retreading of tyresInfo
- Publication number
- GB555976A GB555976A GB127642A GB127642A GB555976A GB 555976 A GB555976 A GB 555976A GB 127642 A GB127642 A GB 127642A GB 127642 A GB127642 A GB 127642A GB 555976 A GB555976 A GB 555976A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blocks
- tyre
- sector
- rubber
- pressure
- 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
- 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
- B29D30/56—Retreading with prevulcanised tread
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
555,976. Retreading tyres. DUNLOP RUBBER CO., Ltd., and ADAMS, A. L. Jan. 30, 1942, Nos. 1276, 1277 and 1278. [Class 87 (ii)] [Also in Group XXXIV] The new tread is in the form of previously vulcanized or partly vulcanized rubber blocks. The blocks may be separate from each other, in which case they may be positioned by a template 13 having holes 15, through which the blocks are passed, and flanges 14 which engage the shoulders of the tyre. Alternatively blocks 10 may be connected to each other by a thin tissue, in which case they may be applied as an annulus or as a length which is wrapped around the tyre. The blocks may be patterned, as with knife cuts or analogous slits. Separate blocks may be aligned on an old tyre to match an existing remnant of a pattern. The blocks are pressed on to the old tread, which has been treated with rubber solution by means of (a) a plain outer mould ring, which may be flat or contoured and may have flanges to confine the blocks, (b) a constricting bandage, or (c) a steam pressure chamber. The spaces between the blocks may be left empty or filled with soapstone. Pressure may be exerted from within the tyre, as by means of the usual inner tube. The retreading may proceed sector by sector, in which case a localized inflatable member or a mechanically pressed pad may be used to apply the pressure. The heating may be by steam, electricity or gas, e.g. gas jets in the sector-by-sector method. The plain mould ring 16 may be heated by electric induction or may form an electric resistance or, as shown, may be heated by an electrical heating coil 17 wound around it. Specification 555,070 is referred to. According to the second Provisional Specification the blocks may be joined together by a sheet of rubber, which may be removed after the blocks have been secured to the tyre. According to the third Provisional Specification the blocks may be joined together by a web, the bonding pressure being distributed from the blocks through the web over the tyre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB127642A GB555976A (en) | 1942-01-30 | 1942-01-30 | Improvements in or relating to the retreading of tyres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB127642A GB555976A (en) | 1942-01-30 | 1942-01-30 | Improvements in or relating to the retreading of tyres |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB555976A true GB555976A (en) | 1943-09-15 |
Family
ID=9719145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB127642A Expired GB555976A (en) | 1942-01-30 | 1942-01-30 | Improvements in or relating to the retreading of tyres |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB555976A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2611411A (en) * | 1950-03-23 | 1952-09-23 | Rawls Vaughn | Tire lug for relugging tires |
| US2675855A (en) * | 1950-12-06 | 1954-04-20 | Company The Cleveland Trust | Retreading of tires |
| US20130276944A1 (en) * | 2010-12-29 | 2013-10-24 | Compagnie Generale Des Etablissements Michelin | Custom pre-cured retread |
| US9370971B2 (en) | 2010-12-29 | 2016-06-21 | Compagnie Generale Des Etablissements Michelin | Methods for retreading a tire |
| US20160325517A1 (en) * | 2013-12-27 | 2016-11-10 | Bridgestone Bandag, Llc | Systems and Methods for Forming Retread Tires Using Flat Backed Tread |
-
1942
- 1942-01-30 GB GB127642A patent/GB555976A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2611411A (en) * | 1950-03-23 | 1952-09-23 | Rawls Vaughn | Tire lug for relugging tires |
| US2675855A (en) * | 1950-12-06 | 1954-04-20 | Company The Cleveland Trust | Retreading of tires |
| US20130276944A1 (en) * | 2010-12-29 | 2013-10-24 | Compagnie Generale Des Etablissements Michelin | Custom pre-cured retread |
| US9370971B2 (en) | 2010-12-29 | 2016-06-21 | Compagnie Generale Des Etablissements Michelin | Methods for retreading a tire |
| US20160325517A1 (en) * | 2013-12-27 | 2016-11-10 | Bridgestone Bandag, Llc | Systems and Methods for Forming Retread Tires Using Flat Backed Tread |
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