Measuring and testing – Test stand – For engine
Patent
1993-11-08
1996-07-02
Gregory, Bernarr E.
Measuring and testing
Test stand
For engine
33600, G01M 17007
Patent
active
H00015555
ABSTRACT:
A tool for visually indicating the relative crankshaft and piston position at top dead center for an internal combustion engine of the type having a threaded opening for a spark plug positioned above the piston's top surface. The tool consists of a base which has threads for attachment in the spark plug opening, an outer tubular member supported by the base to allow it to slide upward through the base in response to urging of the top of the piston moving toward the base but otherwise being frictionally secured to the base, and an inner member equal in the length dimension to the outer member and supported by the outer member in a manner allowing it to initially move upward with the outer tubular member as urged by the piston but also allowing it to move with the piston away from the base and the outer member whereby changes in the alignment of the exterior ends of the members indicates piston movement past top dead center.
REFERENCES:
patent: 1184154 (1916-05-01), Wilesmith
patent: 1611062 (1925-05-01), Peebles
patent: 1737726 (1927-04-01), Muzyn
patent: 1782142 (1929-02-01), Havens
patent: 2112917 (1936-05-01), Linn
patent: 2426955 (1947-09-01), Stroup
patent: 2471746 (1949-05-01), Hilbert
patent: 3852887 (1974-12-01), Hennrick
patent: 3889528 (1975-06-01), Grikscheit et al.
patent: 4531295 (1985-07-01), Saathoff
Chrysler Corporation
Gregory Bernarr E.
MacLean, Jr. Kenneth H.
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