ES35209U - Strip for textile calculation (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

For a rule for textile calculation, characterized in the first scale that in relation to the second allows to multiply, divide, find reciprocal numbers, proportions (pinions of drawing, etc.) and circumferences, are interspersed with indicator stripes to get the conversion of pounds English to kilos and centimeters to English inches. Likewise and independently of these scales and the two used to give square roots, squared powers, quadratic powers (torsion pinions, etc.), cubic roots and cube powers, are arranged in the central moving block, parallel under the first , two other scales, one of them in superior level, for the calculation of twist per meter of all kinds of threads and for ten meters in all kinds of wicks, while the lower one is destined to calculate said twists per English inch in the threads and for ten English inches in the wick, placing to the right of both scales some divisions for each matter with the respective constants; in the upper right extremity of the fixed body of the ruler, a vertical line indicative of the torsion is indicated, to act in relation to said divisions of materials and with the cursor that moves along the assembly. (Machine-translation by Google Translate, not legally binding)