Dictionary.net

• In a kitchen, a wooden or iron vessel for carrying coal or ash.

1874 - Etymological and pronouncing dictionary of the English language
By Stormonth, James, Phelp, P. H.

• bak'et (Scot.), n. a shallow wooden trough for carrying ashes, coals, &c. [Fr. baquet, dim. of bac, back.]

1908 - Chambers's Twentieth Century Dictionary of the English Language
By Thomas Davidson