| http://www.w3.org/ns/prov#value | - The combination set forth in claim 5 wherein said housing is open at the top and including a centrally apertured cover closing the upper end of the housing, said cover having a counterbore around the central opening therein, said shank at its upper end extending upwardly through said central opening in the cover and having a transverse hole therein at the level of the counterbore to receive a pin
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