Model, of mechanical stoker and smoke consuming furnace, for Cornish boiler, on stand

Model (scale 1: 8) of mechanical stoker and smoke consuming furnace originally introduced in 1866 by Messrs. Vicars, applied to Cornish boiler, on stand

This construction of machine for feeding the fuel into the furnace and along the grate of a steam boiler was introduced in 1866 by Messrs. Vicars; it has since been extensively used and considerably modified in detail. The general principle of the arrangement is that the coal stored in the hopper above the furnace front is, by the aid of mechanism driven by a small steam engine or from shafting, continually being forced into the furnace front and gradually worked towards the back end of the furnace as the combustion advances. In this way continuous feeding is secured, the undue admission of air while charging is avoided, and the smoke from the "green "coal is compelled to pass over glowing fuel, which burns off impure gases, reducing smoke and atmospheric pollution.