[f. FOLD v.1 + -ER1.] One who or that which folds.
a. gen. Also folder up.
1552. Huloet, Folder, rugator, Folder vp of clothes or garmentes, vestiplicus.
1837. Ht. Martineau, Soc. Amer., III. 148. Women are employed in printing-offices; as compositors, as well as folders and stitchers.
1885. Crane, Bookbinding, iv. 30. With the inner pages upwards, and the ‘head’ on top of the pages farthest from the folder.
1891. Econ. Jrnl., I. 641. Folders up: Men, 17s. 5d.; Women, 10s. 9d.
b. An instrument for folding paper, etc.
1846. in Worcester.
1886. N. Y. Herald, 27 Oct., 6/3. The press is a new Hoe perfecting machine, with a folder attached.
c. (See quot. 1867.) d. (See quot. 1874.) e. U.S. A sheet or leaf (e.g., a map or time-table) which can be folded up. f. (See quot. 1884.) g. An insect that folds leaves, a leaf-folder. (Cent. Dict.)
1867. Smyth, Sailor’s Word-bk., Folder, the movable sight of a fire-arm.
1874. Knight, Dict. Mech., I. 899/1. Folder.… 2. A form of spectacles in which the lenses fold together for the pocket, and grasp the nose by a spring bow or stiff joint when in use. Ibid. (1884), IV. 353. Folder. (Sheet Metal Working.) A machine for turning locks or tapping edges of cans.
1889. B. Norton, How to Feed a Railway, in Scribner’s Mag., VI. Aug., 219/1. The time-table sheets or folders, which every company must keep on hand at its stations, and in other public places and hotels, for the convenience of the traveller.
