| 摘要 |
1,201,893. Endless conveyer belts. KURASHIKI RAYON K.K. 15 May, 1969 [18 May, 1968], No. 24753/69. Heading B8A. A conveyer comprising a conveyer belt 4 passing about a pair of terminal rollers 6, leading guide means 14, 16 to pull down the centre portion of the belt and pull up the edges of the belt to give it a trough-like configuration and means to hold the belt in that configuration for at least part of its travel between the terminal rollers. As shown, the belt 4 is secured to driving belt 5, 5, by cross stays 8. Alternatively the belts 5, 5, may be replaced by a flexible steel belt. The belt 4 may be made of a fluorinecontaining polymer or polethylene, or may be of flexible steel coated with one of these materials. The conveyer is used as a reactor in the continuous saponification of polyvinyl esters. |
