… fuel, for pulverised solid fuel or for gas; mechanical stokers, including their mechanical grates, mechanical ash …
Explanatory notes
… fuel, for pulverised solid fuel or for gas; mechanical stokers, including their mechanical grates, mechanical ash … of apparatus for the mechanical or automatic firing and stoking of furnaces of all kinds, and for evacuating the ash … . In these the heavy fuel is atomised in the air stream, in some cases by compressed air and in others by …