What is "ladle board"

Ladle \La"dle\, n. [AS. hl[ae]del, fr. hladan to load, drain. See Lade, v. t.]

1. A cuplike spoon, often of large size, with a long handle, used in lading or dipping.

   When the materials of glass have been kept long in fusion, the mixture casts up the superfluous salt, which the workmen take off with ladles.
   --Boyle.

2. (Founding) A vessel to carry liquid metal from the furnace to the mold.

3. The float of a mill wheel; -- called also ladle board.

4. (Gun.)

   1. An instrument for drawing the charge of a cannon.

   2. A ring, with a handle or handles fitted to it, for carrying shot.

      Ladle wood (Bot.), the wood of a South African tree ( Cassine Colpoon), used for carving.