COIN Russian patent published in 2002 - IPC

FIELD: state cash money circulation. SUBSTANCE: coin with face and reverse sides parallel or equally spaced with respect to middle plane has separate joined members, with at least one member having one or two sides being respectively fragments of one or two coin sides, and side surface being fragment of coin rib. Said member is made in the form of three-dimensional sector joined to coin body with three or two sides. Two sides of sector are defined by first and second mutually perpendicular semiplanes extending from straight line intersecting coin sides within their limits and oriented so that at least first semiplane is normal to middle semiplane and its contour is restricted with said semiplanes and coin rib fragment, or is fragment of one of two coin sides restricted with said semiplanes and fragment of coin rib. Said member is positioned for rectilinear-progressive movement with respect to coin body, in parallel with second semiplane and coin middle plane intersection line. Basic dash scale is applied to at least one side of coin, namely, to visible edge of coin body, for counting linear values in the direction of coin rib. Dash scale of linear nonius unidirectional with basic scale is applied to visible edge of movable member. Leading dash of this dash scale is aligned with zero dash of basic dash scale only when surfaces of continuous detachable joint defined by first semiplane are in close contact one with another. EFFECT: increased emission profit for state due to imparting new consumer properties inherent in miniature hand tool for precise measuring of object linear sizes. 6 dwg