US1051546A

US1051546A - Steam-boiler furnace.

Info

Publication number: US1051546A
Application number: US69991412A
Authority: US
Inventors: Ernest Buckley
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-05-27
Filing date: 1912-05-27
Publication date: 1913-01-28
Anticipated expiration: 1930-01-28

Description

E. BUGKLEYI STEAM BOILER FURNACE. AIPLIQATION 1ILED MAY 27, 1912 1,@5L5%fi Patented Ja'n.28, 1913.

20mm w i /LL A I hurrah s'rarns Parana oFFroE.

ERNEST BUCKLEY, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO SAVILLE SMITH, 0F PHILADELPHIA, PENNSYLVANIAQ STEAM--I3OILER FURNACE.

Specification of Letters Patent.

Patented Jan. as, 1913,

Application filed May 27,-1912. Serial No. 699,914.

To all whom it may concern:

Be it known that I, ERNns'r BLoxLnY, a Sub ect of the King of Great Brltain and 'Ireland, residing in Philadelphia, Pennsylvania, have invented certain Improvements in SteanrBoiler Furnaces, of which the following is a specification.

The obiect of my invention is to insure the proper combustion of the gases discharged from the fuel in steam boiler furnaces, an object which I attain in the manner hereinafter set forth, reference being had to the accompanying drawing, which represents a longitudinal vertical section of a boiler of the locomotive type having combustion devices in accordance with my invention.

In the drawing, 1 represents the barrel or casing of a boiler of the locomotive type, 2 the tire box casing, 13 the smoke box casing, 4 the stack, 5 the tubes, and 6 the grate, all of these parts being constructed and arranged in the ordinary manner. Surrounding the boiler shell, however, is an outer casing 7 which is supported and braced at suitable points by m ans of perforated rings 8 and has, in its forward end, openings 9 for the inlet of air into the chamber 10 which intervenes between the boiler shell and said outer casing 7, this air chamber conununicating at its rear end with a chan'iber ll in a hollow brick arch 12, which projects inwardly into the fire box and is located at a point some distance above the level of the bed of fuel maintained upon the grate. (i, the lower member of this arch 12 being perforated as at 13- for the escape of the air therefrom into the fire box. The chamber 10 also eon'nnunicatcs with the interior of the fire box through a hollow door 14 which closes the usual teed opening into the tire box, this door being pivoted at the top in such manner as to swing inwardly in order to open itv The air entering the front end of the chamber 10 is therefore caused to circulate lirst around the shell 3 of the smoke box and then around the shell of the boiler; and in its rearward travel becomes highly heated and hence issues from the hollow arch 12 and hollow tire door 14 in the condition best calculated to cause effective combustion of the gases arising from the fuel upon the grate t5, the latter receiving its supply of cold air from below in the customary manner, and the heated air constituting a secondary supply which is directed downwardly toward the surface of the bed of fuel and consequently becomes intimately mixed with the gases arising therefrom, which mixture is completed as the gases are concentrated in their upward passage around the rear end of the arch so that by the time the gases reach the upper portion of the tire box the oxygen of the secondary air su ply has been so thoroughly eommingled tlierewit-h that all of the carbon contents of the gases will have become ignited and complete combustion of the gases will be effected either in the upper portion of the tire box or during the passage of said gases through the tubes 5, the emission of unconsumed carbon in the form of smoke and the loss of heat due 'to this cause being prevented. a

l. have not. shown the usual stays for the side walls and crown sheet of the fire box as such illustration is not necessary for the proper understanding of my invention;

1 claim:

The combination, in a steam'boiler furnace, of a tire box having therein a deflect ing arch containing a chamber discharging into the tire box, a tire door with passage thcrcthrough also discharging into the fire box, a casing outside of the shell of the boiler and forming between the two an air heating and circulating chamber which com- 8 municates both with the hollow arch and with the passage through the tire door, whereby a secondary supply of air heated by contact with the shell of the boiler is directed into the fire box partly through the hollow arch and partly through the fire'door.

In testimony whereof, I have signed-my name to this specification, in the. presence of two subscribing witnesses.

ERNEST BUCKLEY. lVitnesscs:

ELSIE FULLER'IUN, Ilannr/roN l). TUnNnu.