| http://www.w3.org/ns/prov#value | - t in said one direction; and means for shifting said second element in opposite directions to vary the position in which said latching mechanism releasably retains said member; said shifting means including a screw operably connected to said second element, and a hand wheel threadedly engaging said screw and operably by rotation to shift the screw and said second element in opposite directions. 31
|
