About: http://webisa.webdatacommons.org/244019236

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	assembly working in such a manner as to result in a continuous reciprocating movement when the shaft containing the segmented spur
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net