Assertion: slide fastener's pair | /r/CapableOf | engage lug
Facets:
Source sentences:
text: In this conventional slider, a leaf spring 2" has a central base 7" concealing an eccentric axle 10" of a pull tab 3", a locking pawl 8" at a rear end of the central base 7", a small-width front end portion 9" projecting centrally from a front end of the central base 7", a pair of front engaging strips 24" downwardly bent from opposite sides of the front end of the central base 7" and engageable with a pair of front sloping engaging lugs 12" on the upper wing 4", and an opening 26" near the rear end of the central base 7" through which opening 26" a rear engaging lug 15" on the upper wing 4" is loosely threaded.