Geometrical instruments – Area integrators – Electrical
Patent
1985-10-07
1986-06-17
Haroian, Harry N.
Geometrical instruments
Area integrators
Electrical
3320319, G01B 514
Patent
active
045947872
ABSTRACT:
A bicycle fork end fixed to the rear of the bicycle frame adapted to mount a derailleur, thereon is adjusted by a device including an operating member mounted on the fork end portion where the derailleur is mounted and a reference member which is mounted on a member, such as a rear hub, installed on the fork end and is adjusted to be parallel with respect to the longitudinal center line of the bicycle frame. Thus, both the operating member and the reference member are used to measure the parallelism of the derailleur mounting portion at the fork end with respect to the longitudinal center line of the bicycle frame and to adjust the parallelism by operating the operating member on the basis of its measured position relative to the reference member.
REFERENCES:
patent: 1822599 (1931-09-01), Monk
patent: 4432144 (1984-02-01), Carlsson
Haroian Harry N.
Shimano Industrial Company Limited
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