Special measuring tool for odd tooth addendum circle and dedendum circle

The utility model relates to a measuring tool which is a special measuring tool for an odd tooth addendum circle and a dedendum circle, composed of a measuring rule, a measuring jaw, a measuring meter and screw nails. The measuring rule uses a middle point as a symmetrical line (i.e. '0' s...

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Bibliographic Details
Main Authors GUANGYU LI, YAZHONG WU, FENGLI LUO
Format Patent
LanguageEnglish
Published 09.12.1998
Edition6
Subjects
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
PHYSICS
TESTING
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Summary:The utility model relates to a measuring tool which is a special measuring tool for an odd tooth addendum circle and a dedendum circle, composed of a measuring rule, a measuring jaw, a measuring meter and screw nails. The measuring rule uses a middle point as a symmetrical line (i.e. '0' scale line) to carry out reading to both sides and forms a board rule shape, both sides of the measuring rule are fully symmetrical along the symmetrical line, the measuring meter is arranged in a through hole of a middle line of the measuring rule and is fixed by the screw nails, and the measuring jaw is divided into a left and a right two movable jaws and is similar to a movable jaw of a vernier caliper. The utility model has the advantages of simple structure, convenient use, high precision and large measuring range and is an ideal tool for measuring the diameters of the addendum circle and the dedendum circle.
Bibliography:Application Number: CN1997214181U