公开(公告)号：US4060357A

公开(公告)日：1977-11-29

申请号：US725577

申请日：1976-09-22

申请人： Bernard Charles Allitt

发明人： Bernard Charles Allitt

IPC分类号： B29C33/02 ,  B29C35/00 ,  B29D30/06 ,  B29H5/02

CPC分类号： B29D30/0601

摘要： The retaining rings for the bead formation of a green tire in a tire mould are variable in diameter to allow for increase in the bead diameter of the finished tire relative to its green state and to prevent damage caused by forcing the beads of a green tire over bead rings of too large diameter. Preferably the bead retaining rings expand to their maximum diameter in response to the application of curing pressure inside the tire and automatically retract when curing pressure is relieved.

摘要翻译： 用于轮胎模具中的生胎的胎圈形成的保持环的直径是可变的，以允许成品轮胎相对于其生坯状态的胎圈直径增加，并且防止由于迫使生胎的胎圈过度而引起的损坏 珠圈直径太大。 响应于在轮胎内部施加固化压力，胎圈保持环最好膨胀至其最大直径，并且在固化压力被释放时自动缩回。

公开(公告)号：US3979249A

公开(公告)日：1976-09-07

申请号：US498935

申请日：1974-08-20

申请人： Ernest George Nicholls ,  Bernard Charles Allitt

发明人： Ernest George Nicholls ,  Bernard Charles Allitt

IPC分类号： B29C33/40 ,  B29C33/50 ,  B29C43/36 ,  B29D30/26 ,  B29H17/16

CPC分类号： B29D30/26 ,  B29C33/405 ,  B29C33/50 ,  B29C43/3642 ,  B29K2105/101 ,  B29L2022/025 ,  B29L2030/00

摘要： An inflatable shaping bag or diaphragm for a tire building or shaping former. The bag is based on an elastomeric sheet radially expansible but has high lateral bending stiffness in part of its width owing to the presence of at least one pair of reinforcements of inextensible reinforcing elements, each element lying in a plane containing the axis of the bag. The reinforcement can consist, for example, of two layers of parallel steel cords, spaced apart by a layer of rubber.

摘要翻译： 一种用于轮胎建造或成型机的充气成型袋或隔膜。 由于存在至少一对不可伸长的增强元件的增强件，每个元件位于包含该袋的轴线的平面中，该袋基于径向可膨胀的弹性体片，但在其宽度的一部分中具有高横向弯曲刚度。 加强件可以由例如由橡胶层隔开的两层平行的钢丝绳组成。

公开(公告)号：US3977131A

公开(公告)日：1976-08-31

申请号：US547039

申请日：1975-02-04

申请人： Eric Henry Searle ,  Bernard Charles Allitt

发明人： Eric Henry Searle ,  Bernard Charles Allitt

IPC分类号： B29D30/08 ,  B24B5/36 ,  B29C67/00 ,  G01M1/34 ,  B24B1/00 ,  B24B5/00

CPC分类号： B29D30/0633 ,  B24B5/366 ,  G01M1/34 ,  B29D2030/0635 ,  B29D2030/0638

摘要： Method and apparatus for improving the uniformity of a tire and wheel assembly. The apparatus comrises a frame rotatable through four stations, and displaceable grinding and driving apparatus provided at two of the staions to drive the tire against a rotation grinding wheel, the direction of rotation of the tire and/or grinding wheel being reversed relative to the direction(s) at the previous station.