Overfeed stoker

Details Overfeed stoker Overfeed stoker

1985-05-20

1987-03-03

Rosenbaum, Mark

Furnaces

Including means to feed solid fuel

Power driven

241600, F23K 318

Patent

active

046466622

ABSTRACT:
A fuel stoker for removable attachment to the access port of a solid fuel furnace has a bin for receiving fuel such as coal and a chamber carrying a piston, located at the bottom of the bin, for periodically throwing a charge of coal on top of a fire. A spring-loaded bar, pivotable by one end on the bin, is connected to the piston via a linkage, and spring-biased to advance the piston towards the fire. A spiral cam having a sudden drop-off is intermittently rotated one revolution by a motor to retract the piston and allow fuel to drop into the chamber. At the drop-off, the piston is suddenly advanced to throw the fuel onto the fire. The drive shaft also operates an agitating poker and a grate shaker during the fuel loading phase of operation.

REFERENCES:
patent: 913771 (1909-03-01), Roe
patent: 1177430 (1916-03-01), Metesser
patent: 1605665 (1926-11-01), Riley et al.
patent: 1694290 (1928-12-01), St. Clair
patent: 1736565 (1929-11-01), Woodcock
patent: 1938681 (1933-12-01), Beers
patent: 2097564 (1937-11-01), Durand
patent: 2105988 (1938-01-01), Ridet
patent: 2276659 (1942-03-01), Kreisinger
patent: 2454400 (1948-11-01), Norman

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