US119056A - Improvement in furnaces for steam-boilers - Google Patents

Improvement in furnaces for steam-boilers Download PDF

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Publication number
US119056A
US119056A US119056DA US119056A US 119056 A US119056 A US 119056A US 119056D A US119056D A US 119056DA US 119056 A US119056 A US 119056A
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Prior art keywords
boilers
steam
furnaces
improvement
boiler
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/10Under-feed arrangements
    • F23K3/12Under-feed arrangements feeding by piston

Definitions

  • A represents the boiler, which may be constructed in the ordinary manner.
  • B is the iiue, and C the bottom Wall thereof.
  • D represents the oXidator or lower line, and E F the ports for supplying air to the line.
  • the air-passages being supplied with doors the amount of oxygen supplied to the flues can be controlled at pleasure.

Description

UNITED STATES PATENT OFFICE,
CHARLES D. SMITH, OF CHICAGO, ILLINOIS.
IMPRQVENIENT IN FURNACES FOR STEAM-BOILERS.
Specification forming part of Letters Patent No. 119,056, dated September 19, 1871.
To all whom it, may concern:
Be it known that I, CHARLES D. SMITH, of Chicago, in the county of Cook and State of Illinois, have invented a new and Improved Furnace for Steam-Boilers; and I do hereby declare the following to be a full, clear, and exact description thereof, which will enable others skilled in the art to which my invention appertains to curing a considerable reduction in the expensel of heating the boilers; and to that end it consistsv in a furnace of stone or brick having a circular flue of brick or iron beneath the boiler constructed in the form of an inclined plane, itsback or upper end being placed very near the boiler, causing the entirek heat from the fire to radiate upon the boiler; lit also consists in an oxidator placed beneath the flue, the current of air from which passes through the bottom of -the iiue by means of a port formed therein, and also through the rear end of the furnace to the front of the boiler; it also consists in aport formed in the side of the boiler and passing into the flue.
In the accompanying drawing, A represents the boiler, which may be constructed in the ordinary manner. B is the iiue, and C the bottom Wall thereof. D represents the oXidator or lower line, and E F the ports for supplying air to the line. The air-passages being supplied with doors the amount of oxygen supplied to the flues can be controlled at pleasure.
By the use of my invention coal-slack, costing Witnesses:
G. H. FROST, J. Q. AnAIvIs.
oHAs. D. SMITH.
US119056D Improvement in furnaces for steam-boilers Expired - Lifetime US119056A (en)

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