US557354A

US557354A - Boiler

Info

Publication number: US557354A
Authority: US
Publication date: 1896-03-31
Anticipated expiration: 1913-03-31

Description

(No Model.)

M. P. BOSS.

BOILER.

No. 557,354. Patented Mar. 31, 1896.

1 ANDREW E.GRAHAM,PHUTO-UTHU WASNINGTDNJIQ NITED STATES PATENT FFICE,

MARTIN P. BOSS, OF SAN FRANCISCO, CALIFORNIA.

BOILER.

SPECIFICATION forming part of Letters Patent No. 557,354, dated March 31, 1896.

Application filed September 12, 1895. Serial No. 562,319- (N'o model.)

To all whom it may concern:

Be it known that I, MARTIN P. Boss, a citizen of the United States, residing in the city and county of San Francisco, State of California, have invented an Improvement in Boilers; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to that class of boilers in which an annular series of water-tubes encircles the fire-chamber, which has within it a water-column communicating with the chambers in which the ends of the watertubes terminate.

My invention consists in the combination, with the watertubes, of water chambers whose walls rest upon supporting-plates, and fastenings between said walls and plates for separating the chamber to expose the tube ends.

My invention also consists, in connection with said annular series of water-tubes, of the novel double flaring or conical central water-column by which the flames and heated products of combustion are directed outwardly to and among the water-tubes in their 1 course upwardly to the stack.

My invention also consists in other details of construction and arrangement, all of which I shall hereinafter fully describe and specifically claim.

The general object of my invention is to provide a simple and efficient water-tube boiler, and the especial object is to provide a means for obtaining ready access to the tubes of the boiler, which said object is accomplished by rendering the tube-chambers easily separable.

Referring to the accompanying drawing, the figure is a vertical section of my boiler.

A is the shell of the boiler, having within it the annular series of water-tubes B, which encircle the fire-chamber O, in the middle of which is the water-column D, communicating at its lower end through a suitable pipe E with the lower tube-chamber F.

The upper tube-chamber G has a communication by means of the radiating-pipes H with the central water-column.

I is the foundation-ring, upon which the lower tube chamber is seated and to which it is removably secured. This is effected by means of providing the bases of the walls of said chamber with the flanges f, with which engage the hooked heads of the bolts J, the shanks of which fit in notches j in the foundation-ring and receive nuts j. This means of fastening is a simple and efficient one and may represent any suitable means by which the tube-chamber is removably secured to the foundation-plate.

The particular means shown may be readily relieved by loosening the nut and slipping the bolt away from its engagement with the flange of the chamber-wall and without having to entirely remove the bolt itself. I11 like manner the upper tube-chamber G is secured to the plate g, into which the tops of the tubes are extended, and the parts of the fastening are designated by the same letters heretofore mentioned with respect to the parts of the fastening below.

The exit for the flames and products of combustion is shown at K, the grate-bars at L, and the opening or entrance to the fuel-chamber at Z.

It will be seen that the body of the central water-column is formed of a double tapering or double conical or bulging shape, which not only provides for an increase of water capacity, but also provides for deflecting the flames and heated products of combustion outwardly to and among the water-tubes, from which they may again pass inwardly on the upper slope of the Water-column to their point of exit.

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

1. In a boiler, and in combination with its tubes, water-chambers in which the ends of said tubes terminate, and means for separating said chambers to expose the tube ends, consisting of plates upon which the walls of the water-chambeis rest and fastenings between said walls and plates.

2. In a boiler, and in combination with its tubes, Water-chambers in which the ends of said tubes terminate, and means for separating said chambers to expose the tube ends, consisting of plates upon which the walls of the water-chambers rest, flanges on said walls and clamp-bolts with nuts, seated in slots or grooves in said plates and engaging the flanges.

3. A boiler comprising a shell With a fuelchamber in its lower portion, an annular series of Water-tubes within the shell, Waterchambers communicating with the ends of said tubes and having separable connections with their supporting-plates to expose the tube ends, and a central Water-column communicating above and below with said Waterchambers, and having a bulging or conical body.

4:. A boiler comprising a shell having a fuelchamber in its lower portion, an annular series of Water-tubes within the shell, waterchambers communicating with the ends of MARTIN P. BOSS.

lVitnessos:

M. CROARKIN, A. DUNLAP.