About: http://webisa.webdatacommons.org/456326721

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A variety of methods have been utilized to activate the rotating shafts including using an electric motor which actuates a series or parallel-coupled four-bar linkage mechanism.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca