What is "blanket sheet"

Blanket \Blan"ket\, n. [F. blanchet, OF. also blanket, a woolen waistcoat or shirt, the blanket of a printing press; prop. white woolen stuff, dim. of blanc white; blanquette a kind of white pear, fr. blanc white. See Blank, a.]

1. A heavy, loosely woven fabric, usually of wool, and having a nap, used in bed clothing; also, a similar fabric used as a robe; or any fabric used as a cover for a horse.

2. (Print.) A piece of rubber, felt, or woolen cloth, used in the tympan to make it soft and elastic.

3. A streak or layer of blubber in whales.

   Note: The use of blankets formerly as curtains in theaters explains the following figure of Shakespeare.
   --Nares.

   Nor heaven peep through the blanket of the dark To cry, ``Hold, hold!''
   --Shak.

   Blanket sheet, a newspaper of folio size.

   A wet blanket, anything which damps, chills, dispirits, or discour?ges.

n. (context dated English) A newspaper of folio size.