| 摘要 |
1,080,100. Moulding sheets. FIRESTONE TIRE & RUBBER CO. Nov. 12,1965 [Dec. 31, 1964], No. 48222/65. Heading B5A. [Also in Division B7] A calender comprises rolls 134, 135 with different-sized V-grooves 136, 137, 138 associated with adjustably-spaced knives 145, whereby a ribbon of selected cross-sectional area and having feathered edges may be cut from the calendered sheet and fed directly to a rotating tyre carcass to form an endless tread thereon (see Division B7). Retainers 140 are mounted on cross-roads 141. Reference has been directed by the Comptroller to Specification 802,898. |
