US1038718A - Sectional boiler. - Google Patents

Description

J. B. BERNH'A RD.

SBGTIONAL BOILER.

APPLIOATIOH FILED AUG. 14, 1911.

Patented Sagft. 1'?, 1912.

3 SHEETS-4511331 1.

J. B. BERNHARD.

SEGTIONAL BOILER.

APPLICATION FILED AUG 14, 1911.

Patented Sept. 17, 1912.

3 SHEETS-SHBET 2.

J, B. BERNHABD.

SBO'IIONAL BOILER.

APPLICATION FILED AUG.14, 191 1.

Patented Sept. 17, 1912.

errrnnr union JOHN BLOOD/ FIELD BERNHAR-D, OF YORK, N. Y.

SEOTIONAL BOILER.

Specification of Letters Patent.

Application filed August 14, 1911.

Patented Sept. 17, EH2, Serial No. 643,850.

1 b alt NJ/2.0mt' 727.54 7 concern c Be it known that 1, JOHN B. BERNHARD, a citizen of the United States, residing in the borough of Manhattan, city, county, and State of New York, have invented certain new and useful improvements in Sectional Boilers, of which the following is a specification.

One of the many objects of this invention is to produce a boiler of simple construction equally well adapted for steam or hotwater heating plants, and made up of sections or legs which extend from the front to the rear of the boiler, said sections being arranged side by side and so constructed that the fire will travel rearwardly and laterally.

Another object of the invention to so construct the boiler sections as to secure a rapid heating of the water therein and an T ellicient'fire travel.

Another important object of the invention is to so construct the water sections that they may be readily cast in, a simple mold, thereby reducing, the cost of construction. 1

()ther objects and advantages of the invention will appear hereinafter.

in the (.lrawin'gs, Figure l is a front elevation of the boiler: Fin. 2 an end elevation of the right-handed end of the boiler; Fig. 3 a longitudinal vertical sectional view thereof on line III-Ill of Fig". 2. Fig.

' -l a transverse vertical sectional view thereof on the line lVlV of Fig. 1. Fig. a sectional View through one water section or leg on the line v --v of Fig. 4; l 6 an end elcvationof the left-hand end of the boiler; Fig. 7 an elevation showing the inner side of the left-hand end section of the boiler; and Fig. 8 a similar view of the righhhand end section of the boiler.

Referring to the various parts by runner ads, 1 designates the left-hand end vsection of the )oiler, 2 the right-hand end section and the intermediate or water le sections. The water leg sections consist of a main portion at which is formed with thefire openingor fine and 6 designates the pedestal port-ion of the Water leg section which l'oru'ied with the fire fine. 7 extending transversely or laterally tjl'irounjh the same. This water leg section depends from the rear (UK- of the main portion t of the water swtion. The pedestal portion of each water ection in formed by the water chambers n and J which curve inwardly toward each other at their lower ends and connect with the base portion 10 of the said water section. The upper part of the water chamber 9 is reduced in thickness or cross sectional area, as at 11, to form the passageways 12 which lead from the firebox of the furnace, or the combustion chamber into the tire flue 7. This reduction in the thickness of the chamber 9 may be placed at any desired point along said chamber, but. is preferably arranged at the upper end thereof and close to the bottom of the main portion l. of the water section. The base it) of the water section is formed with holes 12" through which water may circulate from one section to the adjoining" sections, and said holes are usually provided with short sleeves l which serve as a connecting means between the two contacting water sections.-

Coi'in ceting the forward side of he water chai'nber t) of the pedestal portion of the water section with the under side of the main portion 4 of said water section are a series of upwardly and forwardly inclined water tubes 14. These tubes are spaced apart a suitable distance so as to permitt-he hot gases to pass bctw'cen and around them; and said tubes place the interior of the chamher i) in comnmnication with the interior of the main portion l of the water section. These tubes preferably enlarge toward their upper ends to facilitate the rising of the water therein as it is heated.

The fire flue 5 of the main port-ion -'l of the boiler section is of considerable area and its lower wall is formed by the upper surface of the water chamber 15. The upper ends of the water tubes let open into this chamber through the lower Wall thereof. llxtending' upwardly between the water chamber 15 and in communication with the dome portion 16 is a water chamber 17, said chamber being considerably in diameter than the thickness of the boiler section so that; the hot; gases may travel into all parts of the tire flue 5, said fire gases traveling laterally through the boiler as well as from front to rear thereof. The water tubes 14 extend from a point near the lower end of the pedestal portion of the water section upwardly and forwardly and are joined to the main portion of the water section, which main portion constitutes the crown sheet portion of the furnace, at a point; near the forward edge thereof so that the said water tubes incline upwardly and forwardly over channels for the flue the fire box, and are in such a position that they are subjected to the direct heat from the tire. The base portion 10 of the water section rests on the fire box frame 18 while the forward lower edge of the main portion of the water section rests on the front 19 of the furnace. The lower edge of the front it) rests on the forward portion of the fire box frame and said frame carries a grate 20. It is manifest that this grate may be of any suitable form. It will also be understood that any form of boiler front may be used and that the sections may be supported on any form of fire box. As many of these interinediate water sections 3 may be employed as desired, de}f)ending upon the desired capacity of the boiler, only three of said sections being shown in the drawings. These sections are rrranged side by side as shown, the fines 7 and 5 registering to form passages trai'lsverscly through the boiler through which the products of combustion will pass.

The intermediate water sections are ar ranged between the end sections 1 and 2, as clearly shown in Figs. 1 and 3 of the drawings, these end sections being formed with the transverse tines 21 and 22 winch register with the dues 5 and 7 re pectively, of the intermediate sections, thus forminglateral passages extending entirely through the furnace from end to end. Each of these end sections is formed with the pedestal portion to correspond to the pedestal portions of the adjoining water sections. The pedestal portion of each end section is formed with the water chambers S and 9 to correspond with the water cl'iambcrs 8 and 9 of the intermediate sections; and these endsections are also each formed with the base portion 10 to correspond to the base 10 of the adjoining water sections. Each of these base portions 1.0 is formed with openings 12" for the reception of the connecting thimbles or sleeves,'similar to the sleeves 13 which are used to connect the intermediate water sections. The end sect-ions are also formed with the crown sheet portions 15 and the dome portions 16 to correspond with the similar portions of the intermediate sections so that when the end sections and the inter mediate sections are clamped together by ineans of the clamp bolts 25 the furnace gases may pass entirely through the furnace from end to end. The upper portion of the water chamber 9 of section 1. is cut away, as shown clearly in Fig. 7 to form a passage way 24 from the firebox into the flue 22.

The end section 2 is formed on its inner or fire box side with a series of upwardly and forwardly extending corrugations which form water channels within the section and of said section. The interior water channels formed by these corrugations are in comclearly ill Fig.

The fire flue 27 is formed with clean-oul therethrough to the flue 27 of the end.

;then'pass into the fire fine 27 and be by ascs 0n the fire box side doors connected to section 2.

l'nunication at their lower ends with the utter chamber 9 and at their upper ends with the lower portion of the water chamber formed bythe crown sheet portion 15. The water chamber 9 of this section is continuod upwardly at its full width or thickness and is couected to the under side of the crown sheet portion, as shown clearly in Fig. 8, so that there is no passageway from the fire box into the line 2? of said end sccr tion except from the adjoining intermediate section, as shown clearly in Fig. 3. The object of this is to force the hot gases from the furnace fire to pass into the transverse l'lue from the adjoining intermediate section, as will be more fully hereinafter pointed out. To the outer side of the end section is secured a. lire line 527 which receives the hot from the line 22 of said end section and delivers them into the upper flue 21 of said section. From this latter line the said gases trarel through the lines 5 of the intermediate sew tions and then into the line 21 of. tlm'rtjllt l. section 1, as clearly shown hrFigs-il'of .ihe drawings. From this flue 531 the-hot go pass into the smoke outlet The fine of the end section 1 closed by a suitable plate 29 provided with a. clean-out door 30. As shown in Fig. (i the smoke outlet pipe 525 extends over and receives the products of combustion from the entire fine or pas The interior water channels formed by the corrugations 26 are in open coninnmica m 'tion with the water chamber 31. forming a part of the end section 2, said water chain-- ber forming one end of the tire box, as shown W The end section 1 formed 'with a vertical. water chaml'ier 239. which forms the other end. of the fire box, as shown clearly in Fig. 3. The lower ed gcs of these chambers rest on the tire box frame.

as clearly shown in Fig. 3 of the drawings.

lll door The products of comlmstion will circulate around the water tubes l t and will pass upwardly to the opening 12 formed by the reduced portion 11 of the chamber 9 and into 11;

the fire flue 7. Said products of combustion will be projected against the rear wall. of said fire flue and will also pass laterally secwill said and thence into the flue o of the intermediate sections. After passing through said lines they will enter the smoke outlet 28. If it be desired to reverse the travel of the fire the fire flue 27 may be secured to the sec tion 1 and the smoke outlet and clean-out In view of the fact that the fire flue 27 is connected to tion 2. Said products of combustion flue directed into the upper flue 21.

ilU/

the outer side of the end section 2 said end sect-ion is not provided with any passage leading from the fire box into the line 22, so that the products of combustion are all .torced to pass through the intermediate sections and thence into the end section 2. By omitting communication between the tire box and the fire flue 22 of this end section and forming thereon the hollow ribs 26 the passage of the products of combustion is interfered with suiiiciently to secure a proper circulation of the gases throughout all of the intermediate sections and the end sec tion 1. It is manifest that it direct cominimication were; formed through the end section 2 and line 22 to the tire flue 27 a strong draft would result which would interfere with the proper circulation of the products of combustion through the other intermediate sections of the boiler.

in order to tacilitate the manufacturing of the intermediate water sections and the end sections all of said sections are tapered from one side to the other side so that they may be readily d awn from a mold. The dome portions, the crown sheet portions, the pedestal portions and the water tube portions are all ta'pered in the same direction in transverse sectional view, and from one side ot the section, as shown clearly in Fig. 3.-

The water tubes 14 extend inwardly from one side oi each of the intern'iediate sections the said tubes being tapered in cross section to correspond to the taper of the crown sheet and dome portions, so that the entire water section when cast may be readily drawn from a mold. l

is shown in Fig. 3 the,water tubes 14 aregradually increased in lateral dimensions from the bottom to the top one, so that ea h upper tube extends laterally beyond lhe tube directly below it, thereby inlettering with the direct upward travel of the products of combustion. By this means an eliicient circulation of the hot furnace gases between said lines is secured.

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

l. A boiler composed o'l two end sections and intermediate water sections arranged side by side and extending from front to rear of lhe boiler, each of said intermediate sections being formed with an upper main portion and a rear pedestal portion, the upper main portion being formed with a transverse llue and all of said main portions lilting closely together and forming a closed top to the lire box, the pedestal portion oi. each htl'llnll being lorined with a transverse line and will] a part reduced in cross section close to the top wall of the tire box to l orin a passag l'rom the tire box into the lire Jlur ol said p d stal, all oi said pede tal portions lilting cl sely together and formthe upper ing the rear wall; of the the box, means at one end of the boiler for directing the products of combustion from the pedestal tire line into the tire flue oi the main portion, and means at the other end of the boiler for directing the products of combustion from the due to the smoke outlet.

2. A boiler composed of two sections and intermediate water sections arranged side by side and extending from front to rear of the boiler, each of said intermediate sections being formed with an upper main portion and a rear pedestal portion, the upper main portion being formed with a transverse fine and all of said main portions 0 fitting closely together and forming a closed top to the fire box, the pedestal portion of each section being formed with a transverse flue and with a part reduced in cross section close to the top wall of the tire box to form a passage from the'fire box into the tire flue of said pedestal, all of said pedestal por tions fitting closely together and forming the rear wall of the fire box. and a series of forwardly and upwardly extending water tubes connecting the pedestal portion of each section with the main portion thereof, said water tubes being within the fire box.

A boiler composed of two sections and intermediate wate' sections arranged side by side and extending from front to rear of the boiler, each of said intermediate sections being formed with an upper main portion and-a rear pedestal portion, the upper main portion being formed with a transverse flue and all of said main portions fitting closely together and forming a closed top to the tire box, the edestal portion of each section being formed with a transverse fine and with a part reduced in cross section close to the top wall of the tire box to form a passage From the ire box into the tire flue of said pedestal, all of said pedestal port-ions fitting closely together and forming the rear wall of the fire box, and a series of forwardly and upwardly extending water tubes connecting the pedestal portibn of each section withthe main portion thereof, said water tubes being withiinthe fire box and arranged one above the other and gradually incr asing in diameter from the lower one to the upper one, one vertical side of each of said tubes being flush with one side of the boiler section, and said tubes serving to direct the fire gases to the passages leading into the pedestal fire fines.

4. A water section for a sectional boiler formed with an upper main horizontal portion substantially uniform in width and extending from the front to the rear of the boiler, a rear pedestal portion connected to the rear end of the main portion, each of said portions being formed with a transverse lire ilue, the lower part of the main portion being adapted to form a part or" the "Edi h in! i h c) tin pm'tim n I m Mac) pol-tum Ming) f the 1-0211 "wall wlapicd in form an Hm mm;

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