Patent Model - Improvement in Hot-Air Furnaces
Maker and role
Napoleon Toye, Patentee
Sep 14 1875
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Pine (visual), tinned sheet iron, paint
7 3/4 x 5 3/4 x 13 1/4" (19.7 x 14.6 x 33.7cm)
Toye's invention "consists in combining a new combination of parts for consuming the smoke." He goes on to say, "My improvements for the consumption of smoke - that is, the dark and white vapors generated during combustion - consists in the arrangement of a perforated plate in connection with the bridge-wall of the furnace, in such a manner that the air admitted at the front of the furnace shall pass over the fire, and pass partly over and partly through this plate, and pass thence down between said plate and bridge-wall into the bed of the fire, where the oxygen of this now heated air unites with the volatile vapors generated from the fuel, and by the aid of the intense heat thereat they are ignited and consumed." (Patent Number 167,631)
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