Assertion: valve's surface | /r/HasAspect | radius
Facets:
Source sentences:
text: A gate valve structure as claimed in claim 1 in which said upper portions of said divergent side walls have junctures with said divergent oppositely disposed walls of a predetermined radius and wherein a portion of the complementary seating surface of said valve gate member has a substantially straight surface extending transversely of a plane through the axis of the through-bore for seating with one of the divergent oppositely disposed walls and longitudinally extending surfaces for seating with the upper portions of the divergent side walls of said valve chamber, said transversely extending surface having junctures with said longitudinally extending surfaces which have a radius less than said predetermined radius whereby the deformable material may have areas to flow during seating.