GB1302075A - - Google Patents
Info
- Publication number
- GB1302075A GB1302075A GB3083370A GB3083370A GB1302075A GB 1302075 A GB1302075 A GB 1302075A GB 3083370 A GB3083370 A GB 3083370A GB 3083370 A GB3083370 A GB 3083370A GB 1302075 A GB1302075 A GB 1302075A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tread
- depth
- tyre
- belt
- width
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
1302075 Moulding tyres GOODYEAR TIRE & RUBBER CO 25 June 1970 [12 Aug 1969] 30833/70 Heading B5A [Also in Division B7] In a method of making a pneumatic tyre having one or more radial plies such as 15, 16 of parallel cords, a tread portion 17, and a belt 13 of parallel cords, the tyre is cured in a mould 19, the tread having in cross-section at the central portion 20 thereof a depression, the maximum depth D of which lies between 0À013 centimetres and an amount, in centimetres, calculated from a given formula and which is dependent on the tread width, the belt strength, the ratio between the tyre width and depth, the modulus of elasticity of the belt cords and the angular orientation of the latter relative the mid-circumferential centre line of the tread. An equation is given relating the distance W of the tangent points 21 from the mid-circumferential centre line with the tread width, the depth D and the radius of curvature SR at the tyre shoulder, and a further equation relates the radius of curvature of the depression with the depth D and the distance W.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84947569A | 1969-08-12 | 1969-08-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1302075A true GB1302075A (en) | 1973-01-04 |
Family
ID=25305834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3083370A Expired GB1302075A (en) | 1969-08-12 | 1970-06-25 |
Country Status (11)
| Country | Link |
|---|---|
| AT (1) | AT305054B (en) |
| BE (1) | BE754131A (en) |
| CH (1) | CH523772A (en) |
| DE (1) | DE2038562A1 (en) |
| ES (1) | ES192367Y (en) |
| FR (1) | FR2057798A5 (en) |
| GB (1) | GB1302075A (en) |
| LU (1) | LU61492A1 (en) |
| NL (1) | NL7011650A (en) |
| SE (1) | SE365751B (en) |
| ZA (1) | ZA704434B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1501434A (en) * | 1974-07-22 | 1978-02-15 | Goodyear Tire & Rubber | Pneumatic tyre and method of making same |
| FR2499475A1 (en) * | 1981-02-12 | 1982-08-13 | Michelin & Cie | Tyres with reinforced heat:shrinkable circumferential plies - tolerate concave tread profile without excessive ply compression |
-
0
- BE BE754131D patent/BE754131A/en unknown
-
1970
- 1970-06-25 GB GB3083370A patent/GB1302075A/en not_active Expired
- 1970-06-26 AT AT575970A patent/AT305054B/en not_active IP Right Cessation
- 1970-06-29 ZA ZA704434*A patent/ZA704434B/en unknown
- 1970-07-06 ES ES1970192367U patent/ES192367Y/en not_active Expired
- 1970-07-27 FR FR7027566A patent/FR2057798A5/fr not_active Expired
- 1970-08-04 CH CH1174670A patent/CH523772A/en not_active IP Right Cessation
- 1970-08-04 DE DE19702038562 patent/DE2038562A1/en active Pending
- 1970-08-06 NL NL7011650A patent/NL7011650A/xx unknown
- 1970-08-10 LU LU61492D patent/LU61492A1/xx unknown
- 1970-08-11 SE SE10958/70A patent/SE365751B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2057798A5 (en) | 1971-05-21 |
| DE2038562A1 (en) | 1971-02-18 |
| AT305054B (en) | 1973-02-12 |
| ES192367U (en) | 1974-09-01 |
| LU61492A1 (en) | 1970-10-21 |
| BE754131A (en) | 1970-12-31 |
| CH523772A (en) | 1972-06-15 |
| SE365751B (en) | 1974-04-01 |
| ES192367Y (en) | 1975-01-01 |
| ZA704434B (en) | 1971-03-31 |
| NL7011650A (en) | 1971-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |