Method and apparatus for supplying support from below to a screen cloth on a vibrating screening machine

A vibrating screen system comprising:

• a pair of spaced apart parallel longitudinal side members;
• a plurality of cross-members having opposing ends, each of which are coupled to one of said pair of spaced apart parallel longitudinal side members;
• and
• a plurality of crown straps each disposed above and in registration with one of said plurality of cross-members.

A vibrating screen system comprising:

• a pair of spaced apart parallel longitudinal side members;
• a plurality of cross-members having opposing ends, each of which are coupled to one of said pair of spaced apart parallel longitudinal side members;
• a screen media secured above said plurality of cross-members, which screen media is configured to only allow particles having smaller size than a predetermined size to pass therethrough;
• and
• a plurality of spaced apart stringers which are made with different vertical height characteristics so as to provide support for said screen media in a crowned configuration.