US1125228A

US1125228A - Fuel-saver and smoke-consumer.

Info

Publication number: US1125228A
Application number: US81273514A
Authority: US
Inventors: John Lindsay Webster
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-01-17
Filing date: 1914-01-17
Publication date: 1915-01-19
Anticipated expiration: 1932-01-19

Description

J. L. WEBSTER.

FUEL SAVER AND SMOKE GONSUMER.

APPLICATION FILED 11111.17, 1914. 1,125,228. Patented 11111.19, 1915.v

4 SHEETS-SHEET 1.

THE NDRRls PETERS Co 1 PHOTO LlrHO WASHIM; TON, DA C.

J. L. WEBSTER.

FUEL SAVER AND SMOKE CONSUMER.

APPLICATION FILED 11111.17, 1914.

4 SHEETS-SHEET 2.

1HE NORRIS PETERS Cov, FHOIGALITHO., WASHINGTON. D C

Patented 13111.19, 1915.

J. L. WEBSTER.

FUEL SAVER AND SMOKE CONSUMER.

APPLICATION HLED 11111.17, 1914.

J. L. WEBSTER.

FUEL SAVER AND SMOKE CONSUMER.

APPLICATION FILED JAN.17, 1914.

Patented Jan. 19, 1915.

4 SHEETS-SHEET 4.

THE NORRIS PETERS C0.. PHOTO-LITHO WASH/NGYON. D. C.

JOHN LINDSAY WEBSTER, OF OTTAWA, ONTARIO, CANADA.

FUEL-SAVER AND SMOKE-CONSUMER.

Specification of Letters Patent.

Patented J an. 19, 1915.

Application filed January 17, 1914. Serial No. 812,735.

To all whom it may concern Be it known that I, .lor-IN LINDSAY WEB- s'rnn, a subject of the King of Great Britin, and resident of the city of Ottawa, Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Fuel-Savers and" Smoke-Consumers, of which the following is the specication.

This invention relates to improvements in fuel savers and smoke consumers, and particularly to that type of fuel saver in which the products of combustion are lead backwardly and forwardly beneath the boiler and then through the tubes, and the objects of the invention are to increase the efficiency of the device and eliminate smoke, which objects are accomplished by the use of air conduits, in the manner hereinafter described, by which heated air, and if desired steam, is introduced to the products of combustion at appropriate points, all as hereinafter more fully set forth and described in the accompanying specification and drawings.

In the drawings, Figure 1 is a longitudinal sectional view through an embodiment of the invention, a certain portion of the invention being shown in elevation. Fig. 2 is a sectional plan view. Fig. 3 is a section looking rearwardly, taken on the line 2-2, Fig. l. Fig. 4 is a section on the line 8 3, Fig. 1 looking rearwardly. Fig. 5 shows a plan and end View of the air distributing conduit. Fig. 6 shows a sectional detail of one form of distributing nozzle. Fig. 7 shows a detail partially in section of one of the other distributing nozzles. Fig. 8 is a plan view partially sectional of an alternative form of the invention.

In the drawings like characters of reference indicate corresponding parts in all the figures.

Referring to the drawings, A represents a boiler, either for water heating or the production of steam, and having a plurality of tubes 10 therein. The boiler is supported in a masonry structure B which provides vertical spaces 11 and 12 at opposite ends of the boiler, the space 12 being formed with a metal partition 13 which divides the tubes into upper and lower sections and forms a bailie between them. The lower section of tubes is adapted to contain more tubes than the upper section, whereby a greater volume of the hot gases lis distributed over a greater y surface and the draft will not be interfered with.

The doors and other usual appliances on the front of the furnace have been omitted for the sake of clearness in illustration.

C represents the grate of any convenient form located centrally beneath the boiler at the forward end. In accordance with the present invention the grate does not extend the full width of the space beneath the boiler, and return side channels E and F are formed on each side of the grate separated therefrom by longitudinally extending baffle walls G and H which extend upwardly to the surface of the boiler. These baffle walls are tapered slightly toward each other at their inner ends and end a distance short of the end of the boiler whereby a combustionlch'amber will be provided in the rear portion of the boiler beyond the bridge wall K and in which combustion chamber the products vof combustion may turn and 'pass through the channels E and F, direct communication between said combustion chamber and the rear ends of the tubes being cut off by means 'of a baffle wall L.

In order to bring the flamencar the surface of the boiler the portion of the combus-l tion chamber beyond the bridge wall is illed in with suitable filling M to about twothirds of the height of the bridge wall. Tn place of making this a solid lling the same practical result may be obtained by the constructionI shown in the drawing, in which a iioor 20 is supported on suitable beams 21 forming aspace 22, the rear ends of the tubes opening into the space 12, a partition 24 being provided a' short distance below the top of the baffle wall L, a suitable clean out opening 25 being provided in the rear wall 26 of the masonry structure.

From the foregoing it will be seen that when the products of combustion from the lire on the grate C will pass rearwardly to the combustion chamber N they will then turn and pass forwardly through the passageways E and F to the space 12, then through the lower section of the tubes to the rear of the boiler into the space 11, then through the upper section of the tubes to the present invention air distributing conduits P and Q, are provided in the passageways E and F, preferably being supplied from a central conduit R connected by a T 27 and branch pipes 2S and 2 with the conduits P and Q, said conduits extending longitudinally in the passageways E and F and being formed with distributing nozzles 30 of the form shown in Fig. 7, said nozzles extending upwardly from the-conduit and being hook shaped and. tapered toward the discharge orifice 3l which discharges downwardly, thereby avoiding any deposit of soot or dirt in the nozzle. The nozzles may be formed with screw threaded portions 38 by which they may be conveniently attached to the conduits. Tf the natural draft is not sufficient to draw air through the nozzles, suitable forcing means such as a blower S may be provided, connected to the conduit R. Auxiliary air distributing means are also provided in the space l1, said means conveniently consisting of a transversely extending conduit T extending across the top of the space 11 and connected with the conduits P and Q by

branch conduits

32 and 33. The air is discharged from the conduit T through suitable nozzles 34e, preferably of the construction shown in Fig. 6, said nozzles being tapered to discharge, nozzles 35 being formed with screw threaded portions 36 by which they may be engaged with the conduits. To further facilitate the elimination of smoke, steam may be introduced through the conduit T by means of nozzles l0 and 4:1 extending through the end of the conduit and controlled by suitable valves 42 and d3. This steam will also assist the draft through the conduits and may, if desired, be used instead of the blower S.

Tt will be seen that the air prior to discharge will be thoroughly heated by the passage through the conduits which are exposed to the hot furnace gases and the air introduced will produce a secondary combustion which will edect an economy in fuel and eliminate smoke.

Tn the alternative form of the invention shown in Fig. 8 the grate C is at one side of the space beneath the boiler and a single bafiie wall G is provided located a short distance from the center of the boiler on the opposite side to the grate C whereby the products of combustion from the grate C will turn at the rear end of the boiler and pass through the conduit D on the opposite side of the baflie wall Gr and thence through the tubes.

As many changes could be made in the above construction and many apparently widely different embodiments of my invention, within the scope of the claims, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

What l claim as my invention is:

l. ln a fuel saver and smoke consumer and in combination, a boiler formed with a plurality of tubes, a masonry struct-ure supporting the same and forming spaces at the front and rear ends of the tubes, a partition at the front end of the tubes dividing the saine into separated sections, a grate and combustion chamber beneath the boiler, a baflie dividing said combustion chamber and causing the products of combustion to turn at the rear end of the boiler and pass to the front thereof and then to pass successively through the section of tubes, air supply conduits extending beneath the boiler and in the space at the rear end of the tubes and formed with suitable discharge orices, and hook shaped nozzles on said discharge orifices being adapted to discharge downwardly.

ln a fuel saver and smoke consumer and in combination, a boiler formed with a plurality of tubes, a masonry structure supporting the same and forming spaces at the front and rear ends of the tubes, a partition at the front end of the tubes dividing the same into separatedv sections, a grate and combustion chamber beneath the boiler, a baffle dividing said combustion chamber and causing the products of combustion to turn at the rear end of the boiler and pass to the front thereof and then to pass successively through the sections of tubes, air supply conduits extending beneath the boiler and in the space at the rear end of the tubes and formed with suitable discharge orifices.

3. Tn a fuel saver and smoke consumer and in combination, a boiler formed with a plurality of tubes, a masonry structure supporting the saine and forming spaces at the front and rear ends of the tubes, a partition at the front end of the tubes dividing the same into separated sections, a grate and combustion chamber beneath the boiler, a baille dividing said combustion chamber and causing the products of combustion to turn at the rear end of the boiler and pass to the front thereof and then to pass successively through the sections of tubes, air supply conduits extending beneath the boiler and in the space at the rear end of the tubes and formed with suitable discharge orifices, a central conduit supplying both of the aforesaid conduits, a T connection and branch conduits connecting the central conduit with the other conduits.

d. Tn a fuel saver and smoke consumer and in combination, a boiler formed with a plurality of tubes, a masonry structure sup porting the same and forming spaces at the front and rear ends of the tubes, a partition at the front end of the tubes dividing the same into separated sections, a grate and combustion chamber beneath the boiler, a formed With suitable discharge orifices, and baffle dividing said combustion chamber and means for injecting steam into the conduits. 10 causing the products of combustion to turn In Witness whereof I have hereunto set at the rear end of the boiler and pass to the my hand in the presence of tWo Witnesses.

front thereof and then to pass successively JOHN LINDSAY WEBSTER. through the sections of tubes, air supply lVitnesses:

conduits extending beneath the boiler and RUSSEL S. SMART,

in the space at the rear end of the tubes and I. lM. GARROW.

Copies of this patent may 'ne obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, 1D. C.