SLIDE CALIPERS Russian patent published in 1994 - IPC

FIELD: measuring instruments applicable in mechanical engineering. SUBSTANCE: slide calipers have two pairs of measuring jaws. One jaw of first pair is made in form of tetrahedral pyramid whose one of side faces is square to base and directed to second jaw of this pair. Pyramid base is combined with bar and vertex of pyramid is intended to interact with measured part. Second jaw of this pair is made in form of parallelepiped whose one of smaller side faces is combined with frame, opposite face is intended to interact with measured part and one of bases faces first jaw face square to base and tetrahedral pyramid whose one of side faces combined with second base of parallelepiped and pyramid base is combined with frame. Jaws of second pair are different in height. Larger one of them is intended to serve as base of measured part and smaller one is made in form of parallelepiped whose small side face is combined with frame, and opposite side face is intended for interaction with measured part and two pyramids symmetrically located relative parallelepiped whose bases are combined with frame and one of side faces of each pyramid is combined with respective base of parallelepiped. EFFECT: higher measurement accuracy with simultaneous prolonged service life. 7 dwg