Belt switch - Mefcor, Inc. - Free Patents Online
Mar 24, 1981· Many prior-art roller-type belt switch systems employ centrifugal switches 32 as is mentioned above. Such a centrifugal switch is disclosed in U.S. Pat. No. 433,549 to Soule. However, at least one prior-art roller switch, that of Wood U.S. Pat. No. (2,510,163), utilizes a rotor being magnetically coupled to a pivotal member.