About: http://webisa.webdatacommons.org/303607242

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	The retarding means is an annular floating shoe having a large number of O-rings frictionally engaging inner and outer tubular members of said housing.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com