| 摘要 |
1374157 Building tyres DEERING MILLIKEN RESEARCH CORP 29 March 1972 [12 April 1971] 14871/72 Heading B7C [Also in Division B8] A tyre-belt is built-up on an endless support e.g. a drum 1, Fig. 2, from strips 13, 14 of rubberized parallel cord material by feeding the strips through roller guides 33 and between rollers 16, 17 on to the support surface. The guides are reciprocated along guide rods 56, Fig. 3, to lay the strips angularly across the surface with reversals at each edge. On reversal, each guide is rotated to fold the strip as shown in Figs. 9 to 12. Guide rotation is effected by pneumatic cylinder 29 via eccentric 26 on disc 23 connected to the guide by flexible cable 38. In a modification, the guides (53, Fig. 5, not shown), are rotated by cables around pulleys on the shafts 56, the pulleys forming a unit with an associated guide for reciprocation therewith. |
