About: http://webisa.webdatacommons.org/53659609

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	For the apparatus depicted in FIGS. 1 and 2 revolving electrode element 1 is a conical section having an included angle of 160???, having a maximum diameter of 5.875 inches, and having its perimeter rounded to a radius of 0.295 inches.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com