Assertion: slide fastener's pair | /r/HasProperty | supported via a one-way clutch
Facets:
value: for intermittent rotation in one way
type: PURPOSE
Source sentences:
text: On the base end of the second lever 28d, a pair of stringer feed rollers 30 are supported via a one-way clutch (not shown) for intermittent rotation in one way to feed a fastener stringer.