Geometrical instruments – Straight-line light ray type – Alignment device
Patent
1986-07-23
1987-06-16
Martin, Jr., William D.
Geometrical instruments
Straight-line light ray type
Alignment device
33202, 33533, G01B 524
Patent
active
046727515
ABSTRACT:
A chain alignment tool to assist the alignment of a chain sprocket with respect to its chain. The tool is placed over a sprocket at a point where its chain tangentially contacts the sprocket. The tool is tightened against the sprocket and becomes aligned with the sprocket. The tool has an attached pointer which extends outwardly in a direction parallel to the surface of the sprocket. The end of the pointer should align with the chain if the chain is in alignment with the sprocket.
REFERENCES:
patent: 591277 (1897-10-01), Johnston
patent: 2479963 (1949-08-01), Pfersick
patent: 2714255 (1955-08-01), Glazer
patent: 2815582 (1957-12-01), Karstens
patent: 4096636 (1978-06-01), Little
patent: 4212111 (1980-07-01), Saari
patent: 4216587 (1980-08-01), Stone
patent: 4413415 (1983-11-01), Stovall
patent: 4502233 (1985-03-01), Boitz et al.
patent: 4608760 (1986-09-01), Franks
Averill, Jr. Edgar W.
Martin, Jr. William D.
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