Abstract: A link chain, in particular a flyer chain, comprising plate-like chain links joined together by means of link pins has protective surfaces of non-metallic covers extending over the width of the outer surface of the chain links.

Abstract: A load transmitting chain (1) comprises a series of links each formed by a number of link plates (2) arranged side by side and meshing with the link plates of the adjacent link to which they are pivotally connected by link pins (4). The chain is intended for use in transmitting force from a hydraulic cylinder having a piston rod, for example in a fork-lift truck. To avoid damage to the piston rod by contact of the links (2), which are of steel, with it, the chain is provided with a row of additional protective link plates (5) which are sandwiched between the link plates (2) and have projecting portions (11). The protective link plates (5) are made of plastics material and the projecting portions (11) act as buffers so that they come into contact with the piston rod without causing damage and prevent direct contact between the steel link plates (2) and the piston rod.

Abstract: In a chain wheel system tooth blocks are mounted on the circumferential periphery of the drum and are driven by a mating chain. The length of the tooth blocks equals at least the spacing between two links in the mating chain. The tooth blocks are attached to spacers fitted to the circumferential periphery of the drum. Various segment pieces or spacer members can be attached to the drum separating adjacent tooth blocks.