Assertion: annular shoulder | /r/CapableOf | extend in plane
Facets:
Source sentences:
text: a metallic socket connected to said first member and having a frusto-spherical cavity therein and having an aperture in one side thereof entering said frustospherical cavity, said socket having an annular shoulder formed therein extending in a plane containing a diameter of said frusto-spherical cavity and defining the end thereof, and extending parallel to the plane truncating the cavity to impart frustospherical configuration thereto, said shoulder facing toward said aperture, and said metallic socket further having a plurality of grooves formed therein between said shoulder and said aperture in said frustospherical cavity;