US498197A - Laurence j - Google Patents

Description

(No Model.)

L. J. TRECY.

SMOKE GoNsUMING FURNAGE. l No. 498,197. Patented May 23, 1893.

, UNITED STATES PATENT OEEICE. i

LAURENCE J. TREcY, oF sT. LOUIS, MISSOURI, ASsIeNoR 0E EIVE-EIGHTHS To THEoDoEE ALBES AND AUGUST M. BLINKE, 0E SAMEPLACE.

sMoKE-CoNsUMlNG FURNACE.

SPECIFICATION forming part of Letters Patent No. 498,197, dated May 23, 1893.

Application filed January 23, 1893. Serial No. 459.355. (No model.)

To a/ZZ whom it may concern..-

Be it known that I, LAURENCE J. TRECY, of the city of St. Louis, in the State of Missouri, have invented a certain new and useful Improvement in SmokeConsuming Furnaces, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to certain improvements in furnaces, the object being to iinprove the combustion, to provent smoke and save fuel.

My invention consists in features of novelty hereinafter fully described and pointed out in the claim. Y y

Figure I is vertical, longitudinal section of my furnace, taken on line I-I, Fig. II. Fig. II is a Vertical, transverse section, taken on line II-IL Fig. I. FigqIII is a detail, horizontal section, taken on line III-III, Fig. II, parts being broken away.

Referring to the drawings, 1 represents the fire-box, 2 the combustion chamber, 3 the grate and 4 the ash-pit of the furnace. The fire-box is preferably formed with a central box or partition 5, which divides it into two parts, as s hown in Fig. II. This box is made hollow to form an air chamber.

6 are boxes arranged at the sides of the tirebox and 7 a box arranged at the back of the fire-box. The boxes 6 and 7 are also made hollow to form air chambers. These boxes are all made of fire clay, so as to withstand the heat and they are perforated, as shown at 8, to permit air to escape fromthe chambers into the ire-box, to provide for thorough combustion.

9 is an air chamber located behindy the bridge wall 10 of the furnace, into which air enters throughan opening l1. Within the chamber 9 isa-steam coil 12 connecting with t-he boiler to heat the air in the chamber.

l3'is a flue connecting the chamber 9 with the box 7 to supply the air that escapes through the perferations 8 of this box.

14 are tlues which extend from the chamber 9 to the forward ends of the boxes 5 and 6, as shown in Fig. I, andlwhich supply the air that escapes through the perforatious 8 of these boxes. The nues 14 are respectively arranged at the upper corners of the ash-pit and beneath ,the box 5, as shown in Fig. II.

15 are valves in the flues 14 to control the passage of air.

by which the valves are moved. The perforated boxes providefor a uniform admission of air over the fire whichy results in a very thorough combustion of the fuel, and by heating the air in the chamber 9 it is discharged into the lire-box inca highly heated condition, for it is further heated while passing through the flues 13 and'14. f

I claim as my invention- In a furnace, the combination of the perforated hollow boxes, arranged in lthe fire-box, the chamber arranged behind the bridge wall of the furnace, a steam coil arranged in said chamber, and connected with the boiler, and the tlues 13 and 14 connecting said chamber with said boxes; substantially as and for the purpose set forth.

LAURENCE J. TREOY. In presence of- E. S. KNIGHT, ALBERT M. EBEESOLE.,

They have rods 16 which extend v vout through the front plate of the boiler and

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