1296714 Endless conveyers GUENTHER SYSTEMS Inc 9 Feb 1970 [11 Feb 1969] 6039/70 Heading B8A An endless conveyer comprises a series of pairs of endless members 335-341 (only one member of each pair visible in Fig. 2) which have a substantially common path along a downward run A and a lower horizontal run B but are progressively relatively offset (in a horizontal direction) along their upwardly rising runs. Load-carrying platforms C are formed by flexible members 344 (Fig. 3) secured to a series of tubular members 346-352. Each member 346-352 is connected laterally between the two endless members of a respective pair of members 335-341. The endless members are chains and are secured to the tubular members as shown in Fig. 4. The platforms C thus form a horizontal load carrying surface from a load-receiving area immediately downstream from sprockets 334 around which all the chains pass to sprockets 328 at the downstream end of the upper horizontal run. As the platform flexes round the sprockets 328, the load is forced by the remaining horizontal trailing portion of the platform on to load delivery platform D feeding an aircraft. Parallel linkage under the action of jacks 26 enables a lower section 262 of the conveyer to be extended upwardly or to be lowered. Further jacks enable vertical adjustment of the load delivery platform D. The invention may be applied to lifting loads over obstacles (Fig. 6, not shown).
