Endless power transmission belt construction, cord therefor and

Endless belt power transmission systems or components – Friction drive belt – Including discrete embedded fibers

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474268, F16G 110

Patent

active

055056679

ABSTRACT:
An endless power transmission belt construction, cord therefor and methods of making the same are provided, the cord having the yarns and the plies thereof respectively twisted on a 2 for 1 twister so as to cause the longitudinal axes of the fiber filaments to be disposed generally in the longitudinal direction of the cord with the denier of the fiber filaments of each yarn being approximately 1500, the twist multiplier for the three plies being 3.7687 as the three plies are twisted together at a rate of approximately 2.9 turns per linear inch of the cord, the twist multiplier for the two yarns being 3.6765 as the two yarns for each ply are twisted together at a rate of approximately 4.9 turns per linear inch of that ply, and the fiber filaments comprising p-aramid that comprises co-poly (paraphenylene/3,4' oxydiphenylene terephthalamide).

REFERENCES:
patent: 4832673 (1989-05-01), Nagai et al.
patent: 5120280 (1992-06-01), Mizuno et al.
patent: 5209961 (1993-05-01), Yokoi

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