About: http://webisa.webdatacommons.org/258455325

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	Fig. 4 is a side .elevation of a portion of the device of Fig. 3, with parts broken away to show a level adjusting means therefor.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com