Webster’s Revised Unabridged Dictionary · 1913
Knife switch
Knife switch. (Elec.) A switch consisting of one or more knifelike pieces hinged at one end and making contact near the other with flat gripping springs.
Webster’s Revised Unabridged Dictionary · 1913
Knife switch. (Elec.) A switch consisting of one or more knifelike pieces hinged at one end and making contact near the other with flat gripping springs.