| 摘要 |
1,164,995. Endless conveyers. SOLAR THOMSON ENG. CO. Ltd. 11 Nov., 1966 [15 Nov., 1965], No. 48485/65. Heading B8A. An endless conveyer comprises a plurality of carrier plates 10 which are supported and frictionally driven by cables 15 and are interconnected by links 17, there being resilient pivotal means 25 between the links 17, whereby the distance between the centre points of adjacent plates can vary. Each plate 10 has a base 11 and sides 12 and is rigid with a supporting cross-rod 13 at its trailing end. The latter carries shoes 14 which bear on the cables 15 and the ends of the rod 13 from pivots within respective 0-rings 25 (Fig. 16). Each 0-ring is disposed within a housing 27 carried at the end of the link 27. The other end of the link 17 respective to the next adjacent plate 10 is centred on the outer end of the rod 13. Under conveyer load the O-ring distorts (Fig. 17) to permit extension of the endless train of plates 10 in accord with extension of the supporting cables 15. The 0-ring 25 and links 17 are retained on the end of the shaft 13 by an elongated retaining plate 26 (Figs. 5, 16) carried by the shaft end. A slot 29 formed in the aperture 28 of the outer link 17 end, is normally out of alignment with the plate 26. By placing two adjacent plates 10 and their associated pairs of links 17 at right angles, the plates 17 may thus be assembled on to or detached from, the rod 13. At its leading end, each plate 10 rests on, and is supported by, the end of the next adjacent plate 10 (Fig. 15). On the lower run of the conveyer, the leading end of each plate 10 is prevented from falling down by a portion 22 (Fig. 15) which engages the rod 13. As the plates 10 pass around the return drum 19 they are cleaned by a scraper (24) (Fig. 7, not shown). The ropes 15 are wound with several coils around driving and return drums 21. The shoes 14 are designed to turn under gravity so that their grooves remain facing downward on both conveyer runs. Alternatively they may be formed with upper and lower oppositely facing grooves or alternate shoes may be inverted. According to a further alternative the shoes may be turned into proper position by contact with a cable. The 0-rings 25 may be replaced by metal springs. In a modification, the resilient means 25 may be disposed at the middle of each link 17. The rod 13 may be replaced by a coaxial tube and rod assembly.
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