Conveyor chains

Claim 1

A LOAD-CARRYING CHAIN CONVEYOR COMPRISING A USHAPED CHANNEL WITH A FLAT BASE LONGITUDINALLY SLOTTED IN THE MIDDLE PROVIDING CO-PLANAR FLAT TRACKS, A CHAIN OF LOADCARRYING LINKS ALTERNATING WITH CONNECTOR LINKS MOUNTED TO RUN WITHIN SAID CHANNEL, EACH LOAD-CARRYING LINK BEING CONSTRUCTED OF A PAIR OF FLAT PARALLEL LINK BARS EACH OF THE SAME SHAPE, SAID PAIR OF LINK BARS BEING SYMMETRICAL ABOUT A HORIZONTAL PLANE CONTAINING THE AXIS OF AN AXLE PIN WHICH EXTENDS TRANSVERSELY BETWEEN AND THROUGH THE FLAT LINK BARS, A PAIR OF LOAD-CARRYING WHEELS ROTATABLY MOUNTED ONE ON EACH END OF THE AXLE PIN WITH THE PAIR OF FLAT LINK BARS BETWEEN THE WHEELS WHICH LATTER ARE ADAPTED TO ENGAGE SAID CO-PLANAR FLAT TRACKS, THE FLAT LINK BARS BEING SPACED APART AT EACH END BY A TRANSVERSE HORIZONTAL PIVOT PIN ON WHICH IS PIVOTALLY MOUNTED A CONNECTOR BLOCK WHICH IS PIVOTALLY CONNECTED TO THE ADJACENT END OF A CONNECTOR LINK BY A VERTICAL PIVOT PIN, A LOADSUPPORTING SUSPENSION MEMBER IN THE FORM OF A SINGLE SUSPENSION BAR WITH AN ENLARGED HEAD WHICH IS LOCATED BY AND BETWEEN THE PAIR OF FLAT BARS AND IS PIVOTAL ON THE CENTRE OF THE AXLE PIN, THE SINGLE SUSPENSION BAR EXTENDING DOWNWARDLY AND FREELY THROUGH THE SLOT BETWEEN THE TRACKS AND BEING PROVIDED WITH STOP MEANS PROJECTING OUTWARDLY FROM THEIR SIDES ADAPTED TO ENGAGE THE LINK BARS OF THE RESPECTIVE CARRIER LINK IF THE SUSPENSION BARS SHOULD TEND TO SWING BEYOND A PREDETERMINED ANGLE WITH RESPECT TO THE LINE OF MOVEMENT OF THE CHAIN.