Patent ID: 8622858

Claim:
A leaf chain comprising a plurality of links connected together, each of which includes two aligned rollers, a plurality of sets of inner plates, each of said sets of inner plates containing at least a first inner plate and a second inner plate, said sets of said inner plates being rotationally disposed on said rollers, and two outer plates rotatably fixed to said respective rollers and positioned on opposing ends of said plurality of sets of inner plates; a plurality of first apertures formed through all of said first and second inner plates and said outer plates where an outer surface of one of the rollers contacts an inner surface of one of the plurality of first apertures; a lubricant being added within an interstice formed between each roller and each aperture; a plurality of spacers being respectively disposed at both peripheries of said aperture each of said spacers being positioned between adjacent sets of said inner plates and at least two spacers positioned between said two outer plates and a respective one of said sets of said inner plates and said spacers annularly disposed on said rollers for blocking a leakage of said lubricant.