Geometrical instruments – Gauge – Taper
Reexamination Certificate
2000-07-10
2002-10-01
Fulton, Christopher W. (Department: 2859)
Geometrical instruments
Gauge
Taper
C033S567000
Reexamination Certificate
active
06457248
ABSTRACT:
BACKGROUND AND SUMMARY OF THE INVENTION
In the prior art, measurement of the inclination or angle between spaced-apart surfaces of a workpiece has involved complicated procedures, trigonometric calculations, and substantial time-consumption. Such spaced-apart surfaces are typically male and female conical surfaces, inclined surfaces of bar members, and inclined inner walls of injection mold frames and pockets.
The present invention provides means and procedures which eliminate complex calculations, and which substantially reduce the time expended by professional toolmakers. The invention provides a pair of ear attachments, each having an inclined upper side surface, disposed at opposite ends of an assembly of selected Johansson blocks to provide a predetermined overall dimension.
A bore gage such as those long utilized with conical tapers, etc., is positioned on the assembly with its stationary stylus disposed at an upper side surface of one ear, and its indicator stylus disposed on an upper side surface of the other ear. The indicator stylus is moved about the ear surface to establish an apex indication of the gage. The gage is then removed from the blocks assembly and disposed on the workpiece, with the stationary stylus as a fulcrum in contact of one of the spaced-apart surfaces, and with the indicator stylus contacting the other ear surface and being moved thereabout to provide an indicator reading relative to the apex reading to indicate the amount of material to be removed from the workpiece.
REFERENCES:
patent: 1411911 (1922-04-01), Desbains
patent: 2105054 (1938-01-01), Posthuma
patent: 2642670 (1953-06-01), Dow
patent: 2712695 (1955-07-01), Aller
patent: 2739389 (1956-03-01), Carter
patent: 2831256 (1958-04-01), Werle
patent: 3422541 (1969-01-01), Ott
patent: 4112581 (1978-09-01), Hornsby
patent: 4336656 (1982-06-01), Lewis
patent: 4553333 (1985-11-01), Shurtliff
patent: 6009633 (2000-01-01), Novak
Rishton James F.
Rishton John E.
Brown Boniard I.
Fulton Christopher W.
LandOfFree
Measurement of inclination between spaced-apart workpiece... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Measurement of inclination between spaced-apart workpiece..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of inclination between spaced-apart workpiece... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2999147