... , as the flange of an or ; or for a guide, A flange is an external or internal , or (lip), ... flange of an or ; or for a guide, as the flange of a ; or for attachment to another object ... cylinder, etc, or on the of a . Thus a flanged rail is a rail with a flange on one side to keep wheels, ... etc., from running off. The term "flange" is also used for a ...