HORIZONTAL AND VERTICAL CONVEYORS FOR HANDLING CHINA, UP-AND-DOWN OR VERTICAL CONVEYORS FOR HANDLING CHINA, AND LOADERS FOR INTERCONNECTING HORIZONTAL CONVEYORS AND UP-AND-DOWN CONVEYORS; TURNTABLES FOR LOADING AND UNLOADING CHINA CRATES TO AND FROM DISHWASHERS, AND AUTOMATIC MACHINES FOR LOADING SELF-SERVICE RESTAURANT TRAYS AND INTRODUCING THEM INTO WASHERS