Assertion: pawl | /r/CapableOf | prevent the spring
Facets:
value: from turning the arbor
type: TRANSITIVE-OBJECT
Source sentences:
text: The winding mechanism always has a ratchet attached, with a pawl (called by clockmakers the click) to prevent the spring from unwinding.
text: The arbor has a ratchet attached to it, with a click to prevent the spring from turning the arbor backward and unwinding.