Patent ID: 7380394

Claim:
Device for adjustably connecting four chain end links of a double-track chain having two parallel chains, and each of the two parallel chains having two chain end links constituting a wire havin a diameter for a total of four chain end links, and for adjustably connecting the four chain end links without the use of tools, and at varying mutual distances, the device comprising: a) a single connecting link including a shaped plate; b) at least two cut-outs arranged on the shaped plate of the single connecting link, and the at least two cut-outs being spaced apart at a distance relative to each other; c) at least one slide slot connecting the at least two cut-outs; d) the at least two cut-outs and the connectin slide slot forming a closed space unconnected to a periphery of the single connecting link; e) the width of the at least one slide slot being smaller than twice the diameter of the wire constituting the chain links; and f) the diameter of the cut-outs being larger than twice the diameter of the wire constituting the chain links.