Endless belt power transmission systems or components – Positive drive pulley or guide roll – And additional coaxial surface for engaging same belt in...
Patent
1991-01-16
1992-06-23
Melius, Terry Lee
Endless belt power transmission systems or components
Positive drive pulley or guide roll
And additional coaxial surface for engaging same belt in...
F16H 5530
Patent
active
051238780
ABSTRACT:
A multistage sprocket assembly having at least two sprockets having different diameters and disposed adjacent to each other. The smaller sprocket has a tooth engageable with a portion of a drive chain to be displaced from the larger sprocket. The small sprocket tooth has a greater pressure angle at a position thereof rearwardly relative to a sprocket assembly drive rotation direction than that of the other teeth of the smaller sprocket.
REFERENCES:
patent: 3495468 (1970-02-01), Griffel
patent: 4109545 (1978-08-01), Hayasaka
patent: 4348200 (1982-09-01), Terada
patent: 4487088 (1984-12-01), Olson
patent: 4515577 (1985-05-01), Cathey et al.
patent: 4522611 (1985-06-01), Hiatt
patent: 4526558 (1985-07-01), Durham
Melius Terry Lee
Schoeppel Roger J.
Shimano Industrial Company Limited
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