Excerpt from Disclosures On: Autosort-an Automatic Collating and Sorting Machine, Optical Heterodyne Refractometer, Liquid Metering Pump, Stable Wideband Relaxation Oscillator Using Three Inverting Amplifiers, and Seat Belt Webbing Abrasion Resistance Testing Machine Other disclosures on various subjects may be found Technical Notes 237, 253, 263, 282, 287, and 295. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.