Assertion: circular saw | /r/HasProperty | invented around the end of the 18th century
Facets:
value: as a means
type: PURPOSE
Source sentences:
text: The circular saw was invented around the end of the 18th century as a rip-saw to convert logs into lumber in sawmills and various claims have been made as to who invented it.
text: First invented towards the end of the 18th century as a means to cut lumber, the circular saw has come a long way, with modern varieties boasting infinitely more power and stronger, sharper blades meaning that they now make light work of cutting tougher materials.