Assertion: switchblade's mechanism | /r/CapableOf | provide spring-load
Facets:
Source sentences:
text: A gravity knife does not include a knife that can be opened with one hand utilizing manual pressure applied to the blade, or to a thumb stud, declivity or spur of the blade; nor does gravity knife include a knife with a blade that can be opened by means of inertia or other such force produced by hand, wrist, arm or other bodily movement provided the knife has a detent, spring, structure or other such mechanism that provides a bias or spring-load toward the closed position.