US864047A

US864047A - Locomotive-boiler.

Info

Publication number: US864047A
Application number: US35043307A
Authority: US
Inventors: Herbert Jay Travis
Original assignee: VULCAN COMB Co
Current assignee: VULCAN COMBUSTION Co; VULCAN COMB Co
Priority date: 1907-01-02
Filing date: 1907-01-02
Publication date: 1907-08-20
Anticipated expiration: 1924-08-20

Description

PATENTED AUG. .20, 1907.

v H. J. TRAVIS. LOCOMOTIVE BOILER. APPLICATIOF FILED FEB. 20, 1906. RENEWED JAKJB, 1907.

ZSHBBTS-SHEET 2. Y

Mia-5505 M r UNITED STATES osnron.

HERBERT JAY TRAVIS, OF NEW YORK, Y., ASSIGNOR TO THE VULCAN COMBUSTION COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

LOCOMOTIVE-BOILER;

Specification of Letters Patent.

Patented Aug. 20, 1907.

Application filed February 20,19Q6,-SerialNo. 301,975. Koneweddanuary 2,1907. serial No. 350.433.

To all whom it may concern:

Be it known that I, HERBERT JAY Tnavrs', a citizen of the United States, and a resident of the borough of Brooklyn, in the city and State of New- York, have in vented a new and useful Improvement in Locomotive- Boilers, of which the following is a specification.

- My invention relates to locomotives with the object in view of providing a boiler which will economize fuel and heat in the production of steamand which 'is particularly adapted to'the burning of fuel in its pulverized state. i

A practical embodiment of my invention is represented in the accompanying drawings, in which Figure 1 is a view of a locomotive boiler and the parts which immediately coact therewith in vertical longitudinal section, Fig. 2 is a transverse section in the plane of the line A-A of Fig. 1, the frontoi the fire chamber being removed, and Fig. 3 is a transverse section in the plane of the line B'B of Fig. 1.

The boiler is of the general type known in the art as the return fire-tube boiler, in which the products of combustion after passing through the fire chamber to the forward end of the boiler return through tubes to the rear end of the boiler and thence escape through a suitable uptake.

The shell of the boiler, in the present instance, is denoted by 1, the fire chamber by 2, and the return tubes for carrying the products of combustion from the forward end of the fire chamber back to the rear end of the boiler are denoted by 3.

The fire chamber is preferably made cylindrical in construction and is provided with an outer metallic shell 4 preferably corrugated as shown, this shell being lined throughout a greater portion of its length with in position by the engagement of its ends with the firebrick 5- which line the interior of the fire chamber.

The fuel is admitted into the rear end of the fire 7 Chamber through a pipe 8, the discharge end of which is directed toward the rear face of the slanting wall 7 so that the discharge of pulverized fuel will, as it is ignited, form a blast against the slanting face of the bafile wall 7 and will then be'directed up over the wall and to the rear, as shown by the arrows.

A door 9 opens and closes an opening 10 at the bottom of the rear wall of the fire chamber. The pipes 3 for the return of'the products of combustion are preferably arranged'around the fire chamber in substantially the manner shown in Fig. 2, where they not only occupy a position above the fire chamber, but down its opposite sides to points below the central axis of the chamber.

At the forward end of the fire chamber, the products of combustion are received intoan/ enlarged chamber 11, the rear wall of said chamber 11 forming a support for the forward ends of the fire-tubes 3 and theoforward wa1l12 of said chamber forming a support for a series of.

short fire-tubes 13, preferably grouped as shown in Fig. 3, the forward ends ofsaid. tubes being received in a plate 14, thespace between the plates 12 and 14 traversed by the short tubes 13 forming a: water leg at the front of the boiler.

A plate 15 is spaced a short distance forward from th plate 14 and forms between it and the plate 14 a heat chamber in which the products of combustion may circulate, although there is no draft tending to force them into this chamber.

At the bottom of the walls 12, 14 and 15, there is an opening 16 formed for gaining access to the interior of Y ith'e fire chamber and particularly the enlarged chamber 11 at the front of the fire chamber to remove any ash or foreign substance which may accumulate there, and this opening is normally kept closed by means of asuitable door 17. 7

In front of the plate 15 there is what is commonly known in locomotives as the smoke chamber or smoke box, 18 access to which may be had through a door 19 in the front as is usual, and thence to the door 17, hereinabove described. The chamber 18 is, however, in my present structure no longer a smoke chamber but is a chamber for the exhauststeam, and into this chamber the exhaust steam from the cylinders, not shown, is admitted, as, for example, through a large mouthed pipe 20 so as to form no choking whatever oi the exhaust, the escape of steam from the chamber 18 taking place freely through an opening 21 atthe top of the chamber. This chamber 18 also serves to muffle-the noise oithe exhaust. c

It is to be understood that the usual pipes for conveying the dry steam from the dome 22 may pass along the space between the tubes 3 and the shell 1 at the top of the boiler and through the plates 14 and 15 and thence on through the chamber 18 to the cylinder. These pipes are not shown, as they form no part of my present invention. v r e l At the rear, the products of combustion are received into a chamber 23, which may be in the cab .ofthe locomotive, and from this chamber they pass upwardly through an up-take 24 top of the cab.

This structure provides in the? first place for burning I pulverized fuel efliciently and economically and serves to convey the heat to the water with little waste of heat,

and further provides for passing the smoke out of the locomotive back of the position which the engine driver commonly occupies and'hence where it wi111 not obend of the fire chamber; return fire-tubes leading from said.

enlarged chamber to the rear of the boiler and an up-take in communication with the rear ends ofsaid fire-tubes.

2. A locomotive boiler provided with a fire chamber extending along within it, a laterally enlargedchamber at the forward end oif the fire chamber, return flre tubes leading rearwardly from said enlarged chamber and short flre-. tubes leading forwardly from said chamber through a into the atmosphere above the water Ieg formed in front of said chamber, and a plate spaced from the forward ends of said short fire-tubes forming a heating chamber forward of said tubes.

3. A locomotive boiler having inclosed therein a fire chamber, return fire-tubes lading from the forward end of said chamber tothe rear, an up-take in communication with the rear ends of said tubes and a chamber at the front of the boiler cut oil from the products of combustion and from'the interior of the boiler for the reception of the exhaust-steam. i

4. A locomotive boiler having a fire chamber located therein, the said fire chamber being provided with a wall consisting 01! a corrugated metallic casing and brick lining extending'around the interior of the wall throughout a portion only of the leng h of the chamber, an enlarged lateral chamber in connection with the forward end of "said fire chamber, return fire-tubes 'leading to the rear from said enlarged chamber and an up-tuke in communication with the rear ends of the fire-tubes.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two witnesses, this 16th day of February, 1906.

HERBERT JAY TRAVIS.

Witnesses:

FREDK. HAYNES, C. S. SuNnonEN.