US545370A

US545370A - Landsmann

Info

Publication number: US545370A
Authority: US
Publication date: 1895-08-27
Anticipated expiration: 1912-08-27

Description

(No Model.) 7

J. R. MULLER-LANDSMANN. STEAM BOILER No. 545,370. Patented Aug. 27, 1895.

vim MM, W%%@% M- Emm NITED STATES PATENT @hhifilis JAKOB RQBERT MllLLER-LANDSMANN, OF LOTZ WIJL, SWI'IZERLAND.

STEAM-BOILER.

SPEOIFICATIQN forming part of Letters Patent No. 545,370, dated August 27, 1895.

Application filed March 14, 1895.

To all whom it may concern.-

Be it known that I, JAKOB ROBERT Miirmna LANDSMANN, a citizen of Switzerland, residing at Lotzwijl, can ton of Berne, Switzerland,have invented certain new and useful Improvements in Stea1n-l3oilers5 and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain improvements in steam-boilers whereby perfect combustion of fuel is insured, as well as a thorough consumption of all smoke and gases arising from same.

My invention is especially adapted for locomotiveboilers, inasmuch as it provides for obtaining the greatest amount of heat from a limited quantity of fuel.

The invention is fully illustrated in the accompanying drawings, whereon Figure 1 is a vertical longitudinal section of a locomotive-shaped boiler provided with my improvements. Fig. 2 isa vertical transverse section through the firebox thereof, and Fig. 3 a longitudinal horizontal section of the boiler.

The section of Fig. 1 is made through the line 5t :1: of Figs. 2 and 3, the section of Fig. 2 is through the line 00 0c of Figs. 1 and 3, and the section of Fig. 3 through the line in m of Fig. 2. p

The letter Ct designates the fire-box of the boiler, which is divided into compartments I II by means of a vertical longitudinal partition 5. The lower part of each compartment of the fire-box is provided at its front and rear with horizontal hollow supports Z) Z) for the grate-bars e, the latter made hollow and provided at the under side of each bearing-surface with openings 1 to match openings 2, formed in the upper surface of the supporting-bars h b. The bars b b are connected at their under sides by pipes c, and

the sides of the grate-bars are provided with holes (1 for the passage of smoke and gases, as hereinafter more fully described. The support b has the rear of its top surface turned upward and connected with the tubeplate f, so as to leave an air-space between same. This space communicates with the Serial No. 541,773. (No model.)

smoke-chamber of the boiler by pipes g 9 over the forward ends of which are fitted receiving air-pipes G G having outwardlyprojecting flaring months for the more ready admission of air. Dampers may be applied within the pipes G G or in the mouths thereof for regulating the inflow of air should same be required.

The fire-box and smoke-chamber are connected above the pipes g g by fines h 7B, the flue h and air-pipe g and the fine 7L2 and air-pipe g being diagonally connected at the smoke-chamber end of the boiler, so that the smoke and gases from grate I shall pass through flue 7L and return by pipe 9 mixed with fresh air, to the under side of the grate in compartment II and the smoke and gases from grate II escape through flue it" into air-pipe g and be conveyed by same, also mixed with fresh air, to the under side of grate I, by which means absolute combustion is effected.

The dampers 3 4 of the ash-box are intended to be kept closed during the operation of the invention, in order that the air admitted to the grate-bars shall follow the course indicated by the arrows in Figs. 1 and 3. The said air, entering the pipes G G passes rearwardly and is heated in thepipes 9' thence it passes downwardly to the gratesupports Z) Z) and into the grate-bars e, escaping through the side holes cl thereof, in a superheated state, into the fuel, and thus producing smokeless combustion.

The pipes H H are provided with slides 't' to permit the smoke to escape through the smoke-stack when the fire is first started.

If desired, the tines h h and the pipes g can be provided with injectors, ventilators, &c.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination in a steam boiler, of ash-pits, a fire-box divided by a partition, an upper set of fines h, 7L2, and lower set of pipes g, g passing through the boiler, the upper flues h, 72. are connected at one end of the fire-chamber, and at the other to the diagonally opposite and forward end of the return pipes 9 g, respectively, said return pipes connected to the ash pit, whereby the products of combustion from one side of the divided furnace are transferred into the ash-pit of the other, substantially as described.

2. The combination in a steam boiler, of ash pits, a fire-box divided by a partition, an upper set of fines h, 7L2, and lower set of pipes g, 9 passing through the boiler, the upper flues h, 7L2, being connected at one end of the fire-chamber, and at the other end to the diagonally opposite and forward end of the return pipes g, g respectively, the return pipes connected to the ash-pit, as described, and the front ends of the pipes g, 9 pro- JB. ROB. ill'ULLElZ-EANDSMANN.

Witnesses:

O. HANSLIN, FR. W. MANL