Us2409391a Support And Actuating Structure For Gyratory
The concave supporting and adjusting ring 49 also has lower internal screw threads 51 which coact with threads formed on a wedge ring 53 the interior of which in turn coacts with a frustroconical outer surface 59 formed on the annular outer wall of the frame 5 and the adjusting ring 49 is adapted to be rotated upon the wedge ring 58 with the
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