GB418930A - Improvements in and connected with apparatus for applying treads to the covers of pneumatic tyres - Google Patents
Improvements in and connected with apparatus for applying treads to the covers of pneumatic tyresInfo
- Publication number
- GB418930A GB418930A GB22241/33A GB2224133A GB418930A GB 418930 A GB418930 A GB 418930A GB 22241/33 A GB22241/33 A GB 22241/33A GB 2224133 A GB2224133 A GB 2224133A GB 418930 A GB418930 A GB 418930A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- cover
- tyres
- door
- covers
- 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
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
418,930. Moulding wheel tyres. BURCH, A. E., and SMITH, F. W., 561, Mt. Alexander Road, Moonee Ponds, Victoria, Australia. Aug. 9, 1933, No. 22241. [Class 87 (ii).] A mould for re-treading and repairing the outer covers of pneumatic tyres comprises a combined full-circle mould and a sectional mould, each of which can be used alone or simultaneously, and each capable of adjustment for treating tyres of varying pattern, diameter, and width. In treating a cover in the fullcircle mould, one of a range of annular packing rings 32, Fig. 8, of varying thickness is selected and placed in the mould to reduce the diameter to that of the tyre plus the thickness of the matrix. One of a series of skirt rings 10 is then placed inside the ring 32 and is flanked by as many interlocking matrix rings 33 as are necessary to build up the required width of tyre. A second skirt ring 10 mounted on the swinging door of the mould completes the assemblage when the door is closed. A packing- ring 31 may be placed between the door and the mould casing when very wide covers are being treated. Prior to closing the door, the cover is placed in the mould with an extensible sand-bag core 16, Fig. 7, in its interior. Pressure applied to the radial screw arms 13, Fig. 2, then forces the sand-bag outwards and forces the cover into close engagement with the matrix for the vulcanizing operation. The sectional mould comprises a casing 9 which receives the covers of larger tyres direct, and which also is adapted to receive any one of a series of inner members 17 each carrying a tread section 18 for a particular size and make of tyre. Pressure is applied to the cover by means of a sand-bag actuated by the screws 20 mounted on the pivoted arms 21. Steam for vulcanizing is passed through channels in the various casings, and passes through the fullcircle mould and the main casing of the sectional mould in series, but a separate branch from the main supply pipe is used to supply the inner member 17.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE398094D BE398094A (en) | 1933-08-09 | 1933-08-09 | |
GB22241/33A GB418930A (en) | 1933-08-09 | 1933-08-09 | Improvements in and connected with apparatus for applying treads to the covers of pneumatic tyres |
FR759426D FR759426A (en) | 1933-08-09 | 1933-08-10 | Machine for applying treads to pneumatic tire casings |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE398094T | 1933-08-09 | ||
GB22241/33A GB418930A (en) | 1933-08-09 | 1933-08-09 | Improvements in and connected with apparatus for applying treads to the covers of pneumatic tyres |
FR759426T | 1933-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB418930A true GB418930A (en) | 1934-11-02 |
Family
ID=10176183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22241/33A Expired GB418930A (en) | 1933-08-09 | 1933-08-09 | Improvements in and connected with apparatus for applying treads to the covers of pneumatic tyres |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE398094A (en) |
FR (1) | FR759426A (en) |
GB (1) | GB418930A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2440321A (en) * | 1945-04-27 | 1948-04-27 | Jr Thomas P Bacon | Vulcanizing mold |
US2574171A (en) * | 1947-05-06 | 1951-11-06 | American Tire Machinery Inc | Tire side wall mold |
-
1933
- 1933-08-09 BE BE398094D patent/BE398094A/xx unknown
- 1933-08-09 GB GB22241/33A patent/GB418930A/en not_active Expired
- 1933-08-10 FR FR759426D patent/FR759426A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2440321A (en) * | 1945-04-27 | 1948-04-27 | Jr Thomas P Bacon | Vulcanizing mold |
US2574171A (en) * | 1947-05-06 | 1951-11-06 | American Tire Machinery Inc | Tire side wall mold |
Also Published As
Publication number | Publication date |
---|---|
BE398094A (en) | 1933-10-31 |
FR759426A (en) | 1934-02-01 |
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