| 摘要 |
1416653 Conveyers RUD-KETTENFABRIK REIGER & DIETZ 20 March 1974 [20 March 1973] 12380/74 Heading B8A Scraper bars 18 are removably attached to a pair of endless chains, comprising oval links and being trained round parallel wheels, by means of pins 22, 23 engaged in neighbouring links 24, 25, which extend in planes perpendicular to the axles of the drive wheels, such that the pins form a fork enclosing the link intermediate the links 24, 25, the distance between the ends of the pins 22, 23 being less than the length of the intermediate link, and at least one pair of pins forming a dog 21 which is detachably secured to the bar 18. |
