| 摘要 |
1,069,782. Forming articles by winding. DUNLOP RUBBER CO. Ltd. March 10, 1964 [March 23, 1963], No. 11602/63. Heading B8G. [Also in Division F2] A barrel-shaped core (10), Fig. 2 (not shown), is rotated about its axis (11) whilst being wound over-end with filamentary material (23), the winding continuing until two layers have been applied. Unvulcanized elastomeric material is applied at any stage to hold the filamentary material in its wound form and thereafter the wound body is removed from the core (10) by cutting it in two half-way along its axial length to form identical cup-shapes (40), Fig. 4 (not shown). Each cup-shaped structure (40), shown in broken lines in Fig. 5, is fitted, in turn, over a former 42 and its rim 43 turned outwardly. A semi-cured rubber bead ring 45 is placed on the rim 43 and the assembly inserted in a two-part mould. Pressure and heat are then applied to mould and vulcanize the body to the finished form shown in Fig. 6. The body is suitable for use as a car suspension diaphragm. |
