US578538A

US578538A - Thomas barnes

Info

Publication number: US578538A
Authority: US
Publication date: 1897-03-09
Anticipated expiration: 1914-03-09

Description

(NO Hotie'l.)

. T. BARNES.

BOILER r No. 578;538. Patented Mali. 9, 1897;

ATTOIPIVEAYS UNITED STATES F TENT OFFICE THOMAS BARNES, OF VANCOUVER, CANADA, ASSIGrNOR TO HIMSELF, HENRY HARA, I-IENRY LOMAS, ROBERT SMITH, ED\IVARD OLAYTON, THOMAS TURNER, DANIEL SNELL, JAMES' AUSTIN, TVILLIAM CAMPBEILL, JOHN HOWVE, GEORGE HUNT, LUDVVIGr HULLGrLEN, ROBERT MCMURRY, J., A. TOMLINSON, ALFRED STTTDDEN, ROBERT INNES, VVALTER BARNES, AND FRANCIS H. SANKEY, OE SAME PLACE.

BOILER.

SPECIFICATION forming part of Letters Patent No. 578,538, dated. March 9, 1897.

Application filed February 25, 1896. Serial No. 580,683. (No model.)

.fullest advantage and without any appreciable loss.

r The invention consists principally of a sei ries Of segnlental and longitudinally-extending water-legs which form a series of similarly-shaped passages or channels for the products Of combustion, said channels being connected together alternately at opposite ends of the boiler, whereby such products are caused to traverse said channels consecutively.

The invention also consists of certain parts and details and combinations of the same, as Will be fully described hereinafter and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters Of reference indi- Gate corresponding parts in both tignres.

Figure 1 is a front elevation of the ilnprovement with one-half in section, and Fig. 2 is a longitudinal section of the same on the line 2 2 of Fig. 1.

The improved boiler is provided With an anzziliary shell A, formed in its lower half with a water-leg B, the front end of which is depressed, as plainly shown in Figs. 1 and 2, so as to form sufficient room fora fire-box O, containing the usual grate, ash-pit, and firing and ash-pit doors. The fire-box C opens at its rear end into two channels or passages D D',

, extending longitudinally and formed by the water-legs B-B' 13 of which the leg B' is sogmental in cross-Section, and extends about half-way the length of the boiler from the rear forward, as is plainly shown in Fig. 2.

The other water-leg, B extends from one head of the boiler to the other and is likewise segmental and concentric to the leg B' and the main part of the sl1ell A.

The leg l is formed With radial smoke passages Or pipes B and the rear end of the channel D is closed by the rear end of the legB to cause the heat and smoke in the channel D to pass through the pipes 13 to reach the channel D'.

The channel D connects at its rear end with a water-jacketed l hood E, held on the rear head of the shell A, it being understood that said channel extends through the head Of the shell, as plainly indicated in Fig. 2. The hood E also opens upon a channel D formed by the water-leg B previonsly 1nentioned and. by another water-leg B like-Wise extending longitudinally and concentric to the other water-legs.

The front end of the channel B opens into a hood E', held on the front head of the boiler, and this hood E' opens into another channel D formed by the water-leg B and a waterleg B of which the latter is concentric to the water-legs B E and B'. The rear end of the channel D opens into a hood E held on the rear head of the shell A, and this hood opens into a channel or line D concentric with the ably 1nade in the shape of hinged segmental doors, so that they can be readily opened for conveniently cleaning the channels D D' D D D as well as the lines Gr.

The water-leg B is provided in its lowermost portion with a water-feed pipe H, and

from this lowermost portion of the leg B extends the vertical leg or stand-pipe B which opens at its upper end into the lower portion of the leg 13 as plainlyindicated in Fig. 1. The vertical leg B also connects by feed-nipples I I' with the lower portions of the legs B B and. branch pipes I connect the legs B B' with each other near their lower ends.

, The upper ends of the legs B' B are connected by nipples I with the general watercompartrnent in the shell A, (see Fig. 1,) and similar nipples I connect the upper ends of the legs B B with the water-compartment, and nipples 1 connect the upper ends of the legs B B with each other. By the arrangement thus described a complete circulation of the water is established through the several water-legs. Thelower ends Of the waterlegs B' B 13 rest on jacketed lugs B formed on the vertical water-leg B as plain] y indicated in Fig. 1.

Now it. will be seen that when the hoods E E' E2 are closed and heat is generated in the fire-box 0 the smoke and gases pass into the channels D and D' from the former through the passages B into the channel D near the rear end thereof, the smoke and gases from the channel D' passing through the hood E into andthrough the channel D to the forward end of the boiler and into the hood E', to. then pass rearwardly through the channel D: and flues Gr into the rear hood E to then again travel forwardly through the channel D and iiue Gr' into the smoke-stack F. The boiler is also provided With suitable drainpipes and manholes to clean the water-legs from sediment and other i1npurities.

It, will be seen that by the arrangement described the beat circulates through the boiler and comes in contact With a large heatingsurface, so that the heat generated in the firebox is utilized to the greatest advantage and With hardly any loss of units of heat.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. A boiler, provided With a series of sogmental and longitudinally-extending waterlegs which form a series of similarly-shaped channels for the products of combustion, said channels being connected together alternately at opposite ends of the boiler, whereby said products are caused to traverse said channels consecutively, a vertically-disposed water-leg for connecting the lowermost waterleg with the uppermost water-leg, and provided with openings in its Sides and nipples ing provided with waterjackets, substantially as set forth.

3. A boiler co1nprising ct shell, a series of segmental and longitudinally-extending water-legs which form a series of similarlyshaped channels for the products of combustion, a fire-box, formed between the lowermost of said water-legs, and an intermediate segmental water-leg between the two lowermost legs and extending from the rear end of the boiler to the fire-box, substantially as shown and described.

t. A boiler comprising a shell, a series: of segmental and longitudinally-extending water-legs which form a series of similarlyshaped channels for the products of combustion, a fire-box formed between the lowermost of said water-legs, and an intermediate segmental water-leg between the two lowermost legs and extending from the rear end of the, boiler to the fire-box, said intermediate Water-leg being formed Witli pipes or passages for the smoke and gases to pass from a bottom channel to the next channel above, substantially as described.

5. Aboiler, substantially as described, comprising a shell, and a plurality of segmental water-legs arranged one above the other in said shell, the lower portion of the lowermost water-leg ternninating short of the front end of the boiler, as set forth.

THOMAS I-ARNES.

VVitnesses:

VV. I PE'I'EESON, F. J. SGHOFIELDL