TY - JOUR
AU - 
AB - SQENTIFIC AMERICAN SUPPLEMENT No. 1529. AplUL 22, 1905. described. The effect of the sulphuric acid upon the an example or two to show what I mean. Suppose we to fit into grooves cast in the driving and driven por­ copper is merely to roughen the surface and prepare it have a high-speed motor always running in one direc­ tion of clutch. These clutches are made in various for patination by dust. tion, developing a large horse-power, and we wish to forms; some are air-cooled and others are inclosed, fit a clutch so that the work may be stopped, enabling It is said that the Great Elector was formerly cov· and run in oiL From experiments made, it would ap­ us to keep the motor always running: is it reasonable ered with a remarkably beautiful patina which was pear that where there is much slipping, and for high scraped off by a foolish commission, and that the noble speeds, we have in this an ideal cl utch. Whether the bronze took umbrage and refused to renew the process. plates are liable to rapid wear is a point we canno� It is of no consequence whether this crime was com· now 
TI - Friction Clutches
JO - Scientific American
DO - 10.1038/scientificamerican04221905-24496supp
DA - 1905-04-22
UR - https://www.deepdyve.com/lp/unpaywall/friction-clutches-bMvVyFYehI
DP - DeepDyve
ER -