Phased chain assemblies

A phased chain and sprocket assembly, comprising:

• first and second driving sprockets connected to a single drive shaft, said first and second driving sprockets having a plurality of spaced teeth, said driving sprockets being disposed in parallel relationship along said drive shaft, the location of the teeth of said first driving sprocket being offset with respect to the teeth of said second driving sprocket,
• first and second driven sprockets connected to a single driven shaft, said first and second driven sprockets having a plurality of spaced teeth, said first and second driven sprockets being disposed in parallel relationship along said driven shaft, the location of the teeth of said first driven sprocket being offset with respect to the teeth of said second driven sprocket,
• said drive shaft being operatively connected to a power input and said driven shaft being operatively connected to a power output,
• said first driving sprocket being aligned with said first driven sprocket and having a first chain assembly drivingly connecting said first driving sprocket with said first driven sprocket, said second driving sprocket being aligned with said second driven sprocket and having a second chain assembly drivingly connecting said second driving sprocket with said second driven sprocket,
• said first and a second chain assemblies having a plurality of interleaved sets of inverted tooth links, said links being adapted to contact the teeth of at least one of said sprockets, pivot pins connecting adjacent sets of links, each link defining apertures for receiving said pivot pins,
• said first chain assembly having some sets of links of a first configuration and other sets of links of a different configuration, said some sets of links being arranged in a prescribed pattern with said other sets of links,
• said first and second driving sprockets being part of a single composite driving sprocket assembly, and said first and second driven sprockets being part of a single composite driven sprocket assembly.

A phased chain and sprocket assembly, comprising:

• first and second driving sprockets connected to a single drive shaft, said first and second driving sprockets being of substantially equal diameter and having a plurality of equally spaced teeth, said first and second driving sprockets being axially aligned along said drive shaft, the location of the teeth of said first driving sprocket being circumferentially offset with respect to the location of the teeth of said second driving sprocket,
• first and second driven sprockets connected to a single driven shaft, said first and second driven sprockets being of substantially equal diameter and having a plurality of spaced teeth, said first and second driven sprockets being axially aligned along said driven shaft, the location of the teeth of said first driven sprocket teeth being circumferentially offset with respect to the teeth of said second driven sprocket,
• said first driving sprocket being aligned with said first driven sprocket and having a first chain assembly drivingly connecting said first driving sprocket with said first driven sprocket, said second driving sprocket being aligned with said second driven sprocket and having a second chain assembly drivingly connecting said second driving sprocket with said second driven sprocket,
• said first and a second chain assemblies having a plurality of interleaved sets of inverted tooth links, said links being adapted to contact the teeth of at least one of said sprockets, pivot pins connecting adjacent sets of links, each link defining apertures for receiving said pivot pins,
• said first chain assembly having some sets of links that initially contact the sprocket with flanks of a first configuration and other sets of links that initially contact the sprocket with flanks of a different configuration, said some sets of links being arranged in a prescribed pattern with said other sets of links.