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MONTORO SOUCASE MIGUEL
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MONTORO SOUCASE MIGUEL
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Priority to ES0077482UpriorityCriticalpatent/ES77482Y/en
Publication of ES77482UpublicationCriticalpatent/ES77482U/en
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Publication of ES77482YpublicationCriticalpatent/ES77482Y/en
Length-Measuring Instruments Using Mechanical Means
(AREA)
Abstract
Improved drawing rule characterized by being constituted by a flat rule of transparent material with metric numeration marked on one of its major sides, with a row of through holes coinciding with each centimeter, and straight stripes that all depart from a common point in the center of the transparent ruler and mark different angles. The previous rule is solidary along an inverted U-shaped box, inside which is housed a cylindrical roller finished at its ends by grafilated pulleys, so that they grip the paper to which effect they are of a slightly larger diameter than the roller . The box has a graduated window in centimeters and millimeters where you can see the roller bearing a steel indicator wire wound in a spiral on the surface of the roller, in such a way that the displacement of the rule coincides with the thread marking. indicator in the window. (Machine-translation by Google Translate, not legally binding)