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Length-Measuring Instruments Using Mechanical Means
(AREA)
Abstract
Radius tracer device, characterized in that it is constituted by a graduated segment, which presents in the center of the diametral horizontal line, of the start and end of the graduation, a screw in which a graduated ruler is threaded, which has a radial movement pivoting on said screw, which rule presents a step of equal length that the amplitude of the graduated segment that descends said step towards the lower surface of the rule, with this same level as the lower surface of the segment. Find m. (Machine-translation by Google Translate, not legally binding)