Study of the "H" Test

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Excerpt from Study of the "H" Test: For Evaluating the Adhesive Properties of Tire Cord in Natural and Gr-S RubbersThere were, also, in use by certain of the tire manufacturing and related firms, methods for the measurement of adhesion of tire c rd to rubber. One such method, in use by The B. F. Goodrich Company6 was said to give excellent evaluation of adhesion in rayon tire cords. This method employs cylinders ofr ber'0.7 inch in diameter and one inch long, as described by Lessig_. For the Goodrich flexometer, except that a section of the test cord passes diametrically through the center of the cylinder. Adhesion is measured by applying pressure to the ends of the cylinder at right angles to the cord axis, until the bond between.the rubber and cord is broken, and noting the force required. The force measured is not the actual shearing force required to break the adhesive bond, but rather a functionally related compressive force.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.