US1194852A - Water-tube boiler - Google Patents

Description

C. McADIE. WATER TUBE olLER.

APPLICATION FILED OCT. 2l. I9I5.

Patented Aug.v 15, 1916.

2 SHEETS-SHEET l Arm/vers ma Nomar.: l-L'rsns na.. mfom-uma. .wummrmnv n c c. M'cAmE.

WATER TUBE` BOILER.

APPLICATION FILED OCT. 2l. I9I5. 1 ,1 94,852 .Patented Aug. 15, 1916.

2 SHEETS-SHEET 2.

W i B' M Armlmfrs mr Non/els persas m.. Puurnvumo.. vusnmm run. n cv COLIN MCADIE, F RU'IHERFORD, NEW' JERSEY.

WATER-TUBE BOILER.

Specification of Letters Patent.

Patented Aug. 15, 19,16.

Application filed October 21, 1915. Serial No. 57,047.

To all 'whom t may concern:

Be it known that I, COLIN MoADm, a citi- Zen of the United States, and a resident of Rutherford, in the county of Bergen and State of New Jersey, have invented a new and useful Improved 1Water-Tube Boiler, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved water tube boiler ar ranged to utilize the heatarising from the burning fuel in the fire box to the fullest advantage, and to insure rapid circulation of the water and quick generation of steam.

In order to produce the desired result, use is made of two drums spaced apart, two sets of water tubes connecting the drums with each other, the sets of water tubes being spaced apart, two compartments or chambers, of which one is provided at one end with a fire box, and the two compartments are connected with each other at the other end, the said drums extending in both compartments, one set of water tubes being located in one compartment and the other set of water tubes being located in the other compartment.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a sectional side elevation of the water tube boiler on the line 1-1 of Fig. 3; Fig. 2 is a similar view of the same on the line 2-2 of Fig. 3; Fig. 3 is a plan view of the same with parts in section on the line 3-3 of Fig. 1; and Fig. 4 is a transverse section of the same on the line 4-4 of Fig. 2.

The housing or setting of the furnace of the boiler is provided with a partition 11 extending from the front of the housing to within a short distance of the rear end thereof to provide a transverse passage 14. By the arrangement described two compartments or chambers 12 and 13 are formed within the housing and are connected with each other at their rear ends by the transverse passage 14. In the forward end of the compartment 12 is arranged a fire box 15, and the front end of the other compartment 13 is connected with a smoke flue 16 for carrying off the products of combustion arising from t-he burning fuel in the fire box 15.

Tithin the housing 10 is arranged the boiler proper consisting essentially of a forward drum 17, a rear drum 18 and two sets of water tubes 19 and 20, connecting the drums 17 and 18 with each other. The sets of tubes 19 and 20 are spaced apart and are located in the two compartments 12 and 13, respectively.

The fire box compartment 12 is provided with a baiie 21 in the rear of the fire box 15 and rising from the bridge wall thereof in the rear of the front drum 17, the upper end of the baie terminating a distance from the roof of the compartment 12. A baille 22 extends from the roof of the compartment 12 downwardly in front of the drum 18, and this baille 22 terminates a short distance from the bottom of the compartment 12` Battles 23 and 24 are arranged in the return smoke compartment 13 and the baiiie 23 extends from the top of the compartment 13 to the top of the drum 18 while the baffle 24 extends upward from the bottom of the compartment 13 to the lowermost water. tube 2O at a point near the upper drum 17, as

plainly shown in Fig. 2.

In practice, the drum 18 is preferably located at a lower level than the drum 17, 'and when the furnace is in use the smoke and gases arising fromthe burning fuel in the fire box pass upward around the po-rtion of the drum 17 located in the compartment 12, and between the upper ends of the water tubes 19 and then the smoke and gases f pass over the baffle 21 and between the tubes 19 to finally pass under the bafiie 22 and around the portion of the drum 18 located within the compartment 12. and gases next pass through the passage 14 into the return smoke compartment 13 and laround the drum 18, then up between the tubes and around the portion of the drum 17 in the compartment 13 to nally pass into the smoke flue 16. It will be noticed that by the arrangement described a long passage for the smoke and gases is provided to utilize the heat units of the burning fuel to the fullest advantage. It will also be noticed that the portions of the drums 17 and 18 and the tubes 19 in the compartment 12 are subjected to a higher heat than the tubes 2O and the portions of the drums 18, 17 in the compartment 13 and consequently a rapid circulation of the water is obtained, the water rising in the tubes 19 and descending in the tubes 20.

The top of the front drum 17 is connected with a drum located on top of the hous- The smoke ing 10 and from which leads a pipe 26 for carrying oil" the dry steam to the engine or other place of use. The lower or rear drum 18 is connected by a pipe 27 with a suitable source of water supply, and the drum 18 is also provided with valve blow-oil pipes 29 for cleaning the drum 18 of sediment. The ends of the drums 17 and 18 are provided with the usual handhelds 301 81 for repairs and other purposes. The side walls of the housing 10 are provided with recesses 40 having diverging side walls and openings 41 leading to the interior of the compartments 12 and 13 to permit the insertion of nozzles for conducting jets of steam or other iiuid into the compartments for dislodging. soot on the tubes 19 and 20. The openings el are normally closed by suitable doors 4t2.

F rom the foregoing it will be seen that the boiler proper is of simple construction and permits the use of a large number of water tubes in each set of water tubes 19 and 20 thus providing a large heating surface, and by locating the two sets of water tubes in the separate compartments in which the heat varies, a very rapid circulation of the water is obtained and a quick generation of steam takes place. Every part of the boiler and furnace is readily accessible for cleaning, repairing or other purposes. It will also be noticed that in the construction of the boiler all flat or flattened surfaces, stay bolts and other undesirable features are completely avoided.

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

1. A -water tube boiler, comprising a housing provided with a vertical partition extending from the front of the housing to within a distance from the rear end of the housing to form a lire box compartment and a return smoke compartment, the compartments being inclined and connected with each other at the rear ends, front and rear drums extending transversely through the partition in the front and rear ends of the compartments, spaced sets of inclined water tubes connecting the drums with each other and one extending in the lire box compartment and the other extending in the return smoke compartment, a fire box in the forward end of the lire box compartment and below the corresponding portion of the forward drum, and a smoke outlet at the forward end of the smoke return compartment.

2. A water tube boiler, comprising a housing inclined rearwardly and downwardly and provided with a vertical partition extending from the front upper end of the housing to within a distance from the rear lower end of the housing to form within the housing a lire box compartment inclined downwardly and rearwardly, and a return smoke compartment inclined upwardly and forwardly, the rear lower ends of the said compartments being connected with each other, a front and upper drum extending transversely in the upper front ends of the said compartments and passing through the said partit-ion, a rear lower drum extending in the rear lower portions of the said compartments and passing through the said partition, sets of inclined water tubes connect ing the drums with each other and one extending` in the said lire box compartment and the other extending in the said smoke return compartment, a fire box in the upper portion of the fire box compartment and located beyond the corresponding portion of the upper drum, and a smoke outlet leading from the upper end of the smoke return compartments.

3. A water tube boiler, comprising a housing inclined rearwardly and downwardly and provided with a vertical partition extending from the front upper end of the housing to within a distance from the rear lower end of the housing to form within the housing a lire box compartment inclined downwardly and rearwardly and provided with a vertical partition extending from the front upper end of the housing to within a distance from the rear lower end of the housing to form within the housing a fire box compartment inclined downwardly and rearwardly and a return smoke compartment inclined upwardly and forwardly, the rear lower ends of the said compartments being connected with each other, a front upper drum extending transversely in the upper front ends of the said compartments and passingthrough the said partition, a rear lower drum extending in the rear lower portions of the said compartment and passing through the said partition, sets of inclined water tubes connecting the drums with each other and one extending in the said fire box compartment and the other extending in the said smoke return compartment, a lire box in the upper portion of the fire box compartment and located below the corresponding portion of the upper drum, a smoke outlet leading from the upper end of the smoke return compartments, and spaced transverse baliies in the said lire box compartment intermediate the said drums, one of the baiiles extending upwardly in the rear of the lire box and the other extending downwardly in the front of the portion of the lower drum within the fire box compartment.

t. A water tube boiler, comprising two drums spaced apart, two sets of water tubes connecting the drums with each other, the sets of water tubes being spaced apart, two compartments, of which one is provided at one end with a fire box and the two compartments are connected with each other at the other end, the drums extending in both compartments and one set of water tubes being located in one compartment and the other set of water tubes being located in the other compartment, and spaced transverse baffles in the 'fire box compartment intermediate the said drums, one of the baffles extending upward at the rear of the fire box and terminatinga distance from the roof of the lire box compartment and the other baffle extending downward from the roof of the fire box compartment to within a distance of the bottom of the said fire box compartment. p

5. A water tube boiler, comprising a housing provided with a partition extending from the front of the housing to within a distance of the rear end of the housing to form a fire box compartment and a return smoke compartment, the compartments being connected with each other at the rear ends, front and rear drums extending in the front and rear ends of both compartments, spaced sets of water tubes connecting the drums with each other, one extending Copies of this patent may be obtained for five in the fire box compartment and the other extending in the return smoke compartment, a re box in the forward end of the fire box compartment, a bridge wall in the rear of the said fire box, a baffle extending upward from the said bridge wall in the rear of the front drum and terminating a distance from the roof of the fire box compartment, a second baille extending downward from the roof of the said lire box compartment in front of the said rear drum, the lower end of the second baiile terminating a distance from the bottom of the said fire box compartment, spaced front and rear baies in the said smoke return compartments, and a smoke outlet connected with the forward end of the smoke return compartments.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

COLIN MGADIE.

Witnesses:

THEO. Gr. Hos'rER, GEORGE II. EMsLiE.

cents each, 'by addressing the Commissioner of Patents,

Washington, D. C.

Images