Gear Chain Industrial B.v.

Johannes Henricus Nelissen

Jacobus Hubertus Maria Van Rooij

To obtain a compact structure and to increase at the same time the structural stiffness of an apparatus for plastically deforming and strengthening the links, which are intercoupled by rocker pins, of a complete endless transmission chain, said apparatus comprises a first and a second pair respectively of conical supporting surfaces for the ends which protrude outside said links of the rocker pins of a transmission chain, mounted thereon, said surfaces having a controllable mutual distance, the invention propose to add a third similar pair of supporting surfaces, provided for cooperation with the first and second shaft. This measure also speeds up the treatment of the transmission chain.

Apparatus and method for stretching the links of a transmission chain while surpassing the limit of elasticity thereof

Transmission chain constructed from a number of links intercoupled by pivot assemblies, each comprising a first and a second elongated pin of which at least one cooperates with its ends, while transmitting a force, with a pair of pulley sheaves, while during operation one pin rolls with a curved longitudinal surface over the opposite, essentially flat longitudinal surface of the second pin, both pins having mutually different cross-section configurations and a difference in the configuration of the transition between the rolling surface of the second pin to the upper and lower respectively longitudinal edge thereof and/or a mutual difference in height between the first and the second pin respectively.

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Helmond, Netherlands

Johannes Henricus Nelissen