folding valve

A flexible flap which lies upon a perforated plate forming its seat, and rolls or unrolls thereupon to open or close the pa age-way. The band is connected to an arm on a shaft which pa es through a stuffing-box to the outside of the IMG:content-1850.png:[blocks in formation] *fold-üre, s . [Eng. fold (2), v.; -ure.] The act of folding or doubling; a fold. "My letters are generally charged as double at the post-office, from their inveterate clumsine of foldure ." -Lamb: Letter to Barton. *föld-, a. [English fold ; y.) Full of folds; doubled into folds; folded; in folds. "Those limbs beneath their foldy vestments moving." J. Baillie. (Ogilvie.) *fole-large, a. [Mid. Eng. fole =fool, and large =lavish, free.] Foolishly liberal; lavish. [FOOL LARGE.]