Underfloor chain for trolley transport - has U-shaped connectors and catch links with projecting tangs engaging trolley bolts

摘要

The underfloor drag chain is for transporting trolleys and the like and has "catch-link" (1') and "non-catch" links joined by connector brackets (2). With vertical bolts (3). Each catch-link has a projecting tang (15) and a recess (16) for a trolley bolt. This recess extends forward of the face in the direction of transport (7) and below the top (10) of the link. The connectors (2) consist of flat steel U-shaped sections. The links without projecting fangs have their top centre portions raised so as to be flush with the top faces of the connectors (2), forming a smooth upper surface (10) for the entire chain. The non-catch links may have a recess (13) in their lower surface to reduce weight.