Report of the Judges of Implements at Norioich. 533 
in the position of equal diameter, and their circumference are 
coincident. (3.) The radial distension or the radial collapse of 
the cradle to an equal extent at all parts of its surface, has the 
Figs. 3 to 6. — Sections of Messrs. Eainforth and Sons'" Corn-screen, 
No. 762. 
effect of increasing the mesh between the adjacent wires of the 
screw ; and of the cradle to an equal degree at all parts of the 
