Agricultural Inventions

1886 Scientific American  
An operating mechanism for railway switches has been patented by Mr. William B. S. Reed, of Brooklyn, N. Y. This invention provides a mech· anism whereby but a single lever is used, and such lever is inoperative to open more than one switch or system at a time, or to open another while one remains open.
doi:10.1038/scientificamerican02061886-90a fatcat:ukeytyya6zgundd44frenfv2ri