{HEAD ~ a metallic U shaped yoke} having {TAIL ~ an inner flange} adapted to be secured to the doorpost and an outer flange spaced therefrom, forming a fork receiving space therewith, and having an outer surface turned away from the inner flange 
{ HEAD ~ a metallic U shaped yoke } having { TAIL ~ an inner flange } adapted to be secured to the doorpost and an outer flange spaced therefrom , forming a fork receiving space therewith , and having an outer surface turned away from the inner flange
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