About: http://webisa.webdatacommons.org/159290416

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 inlet conduits 20 and 22 are adapted to receive a fluid to be compressed, such as a gas, and direct the gas into the heads 16 and 18 for discharge into the bore 14 as shown by the arrows in FIG. 1.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es