US1830635A - Heating boiler - Google Patents

Description

Nov. 3, 1931. G. F. BIERBowER HEATING BOILER Filed June 5, 1929 ff 19 j me j?. 695m@ rZZerawef z ...llEl

l m X M rr. w

Patented Nov. 3, 1931 y GESNER r. BIERBowEn, or

CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF BEST, OF CHICAGO, ILLINOIS PATENT OFFICE TO LAFE T.

HEATING BOILER Application led June 5, 1929. Serial No. 368,688.`

This invention -relates to improvements in heating boilers and has special reference to boilers usually used for heating plants for dwellings which use hot water as the heat transmitting medium.

The object of the invention is to provide a boiler for the purpose, of maximum heat transmission capacity and of minimum size or dimensions and hence of relatively low cost.

A further object is to provide a boiler for the purpose mentioned which shall have a relatively small water capacity and a relatively large area for transmission of heat to the water.

A further object is to provide a boiler of simple construction and especially adapted for being made of plates joined by weldingk instead of riveting.

My invention resides in a boilerv for the purpose mentioned, which is provided with a plurality of gas lines larger at their inlet than at their exit ends and tapered filler tubes spaced between the flues and having their larger ends adjacent to the smaller ends of the flues.

Another feature lrelates to the outer walls of the boiler, being tapered or inclined simiv larly to the tapering of the flues, which results in the minimizing of the water space. A

Another feature relates to the preferred form of tubes which are square in cross-section, the boiler being also preferably square in cross-section, thus providing a form which l50 pecially adapted for using gas as a fuel.

of substantially uniform thickness The boiler consists of the boiler proper 2l i e is provided with a gas escape nozzle 7 which projects into aV coned nozzle V8 attached to a chimney pipe 9. Between the end of the noz-l zle 7 and the coned nozzle 8 is an air inlet opening 10 for'preventing back drafts reaching the gas burner.

The present invention relatesparticularly to the boiler proper2. This, as shown, is substantially square in horizontal section and is tapered vertically, being smaller at the topf 11 than at its lower end 12. Leading Afrom thebottom 12 of the boiler to ythe top 11. are tapered `gas tubes or lines 13. In theform shown, these fines are squarel inhorizontal section, and their large ends 14 are at the bottom and their smallends 15 are at the top.

The Y products of combustion` rise through these flues, givingoff their heat to the water 16 which surrounds the ues. As the gases rise through the flues and give o their heat, they reduce in volume, 'and the tubes 13 are tapered substantially in proportion toy this shrinkage in :volume of the gases.

As shown yin the drawings,v the 4outside walls l17 of the boiler are inclined substantially'parallel with the adjacent sides'of the fines. This is for the purpose of reducing the water space in the boiler and assists in the rapid heating of the contained water. As a further means of reducing the volume of the contained water, hollow filler members 18 are provided which are tapered or- 'coned similarly'to the tubes 13 but are'open at their large ,ends419 only. These fillers lare arranged in the spaces betweenthe ues 13 and depend from the top end 11 ofthe boiler. They are also preferably square in horizontal cross-section andV serve to reduce the water space inthe boiler to relatively thin spaces between the tubes and fillers.

'In' making"v up the boiler 2, sheets lof sheet metal arev cut to proper dimensions and shapes to form the sides, top and bottom,l and these plates Vare preferably joined by Vcntion to the specific details of construction and combination of parts'herein 'shown andH described.

' l. A boiler" of' the kind desc''rib`ed,Y coinprisin'g a shellV and heads,4v a plurality of ta'- peredjgas tubes connecting the headsand gas tubes connecting the heads'and providing' tapered gas lues through the boiler, 0pp0- ,sitely tapered hollow iller members arranged between the gas tubes and having their larger ends adjacent to the smaller ends of the gas tubes, the she11 ef-t'hebiler; ,the tubes and mennen having namens-weien@ in parallelplanes.

dey' ofMa'yg 1929. i i GESNER F. BIERBOWER.

providing tapered gas' i'u'esthroughfthe boiler, and oppositely tapered hollow liller trienibersV arrangedl between the gas` tubesA and having ltheir larger ends adja'c'entk to the` smaller ends ofthe gastubes.L K

2. A boiler ot the kind defsciibed5y coniprisiiig a' shell and'liead's", a: plurality f tapered gasltub's connecting` the heads and pfovuingitapeed gas fines uifugnth'bpil: er, oppositely tapered hollowA filler members arranged between the gastube's'and having their larger ends adj aeent" to tliesmall'er'ends of thega's `tubesgand thes'hell 'of the boiler beingl tapered similarly to the gas'tubes. v

3. A boiler of the kind described; coi'nprisl` iiig a shell and heads,' aplurality of'tapered' gas tubes connecting the heads and provid' ing tapered gas'liiesjthr'cnigli the boiler, oppositely tapered hollow` iiller members' 'arl' ranged between .the gas tubes and haig their larger ends adj acent't the smaller eiids of the gasztubes. and the shell ofthe Boiler,

tl'iegas tubes andr'the llei'sbeiiig all tapered on substantially the 'sainel angle 4. A boilerl'ottlekind described, cmprisf ing ajshell and heads,a pliiralityoftapered g'as tribes connecting the heads: aidjjroif'iding tapered gas liies throdgh the" boiler, op-4 positely tapered holloyvr filler members r# ranged between the gas tubes and'zhving their largerends adjacent toA the'smaller ends of the' gas` tubes; the; shell'of theboil'enthe gas tubes andy theJ llers` all being polygonal in cross-section; i

j 5. Aboiler of the kind descibedgcmpris' ing a shell and heads', a plurality of tapered gas tubes connecting' the heads and providing tapered gasues through the"bile, oppo sitely tapered -holloyi7 fillerv iii'ember'slarianged between the gas tutes and havingrheirige. ends' adjacent to the smaller ends df the gas tubes,th e shell 0f the boilgrtlie" gasftubs and thev iille'rs all being' square in yc'rsslsection.

I e.. About): of wenn@isnbedgoipns ing a geen :redheads a pine-tiny o'f tapered dit alii

Images